600114988c
Implement the ARM VFP half precision floating point extensions. Signed-off-by: Paul Brook <paul@codesourcery.com>
9175 lines
309 KiB
C
9175 lines
309 KiB
C
/*
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* ARM translation
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2005-2007 CodeSourcery
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* Copyright (c) 2007 OpenedHand, Ltd.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include "cpu.h"
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#include "exec-all.h"
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#include "disas.h"
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#include "tcg-op.h"
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#include "qemu-log.h"
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#include "helpers.h"
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#define GEN_HELPER 1
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#include "helpers.h"
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#define ENABLE_ARCH_5J 0
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#define ENABLE_ARCH_6 arm_feature(env, ARM_FEATURE_V6)
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#define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K)
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#define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2)
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#define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7)
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#define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0)
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/* internal defines */
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typedef struct DisasContext {
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target_ulong pc;
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int is_jmp;
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/* Nonzero if this instruction has been conditionally skipped. */
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int condjmp;
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/* The label that will be jumped to when the instruction is skipped. */
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int condlabel;
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/* Thumb-2 condtional execution bits. */
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int condexec_mask;
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int condexec_cond;
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struct TranslationBlock *tb;
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int singlestep_enabled;
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int thumb;
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#if !defined(CONFIG_USER_ONLY)
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int user;
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#endif
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} DisasContext;
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#if defined(CONFIG_USER_ONLY)
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#define IS_USER(s) 1
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#else
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#define IS_USER(s) (s->user)
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#endif
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/* These instructions trap after executing, so defer them until after the
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conditional executions state has been updated. */
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#define DISAS_WFI 4
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#define DISAS_SWI 5
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static TCGv_ptr cpu_env;
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/* We reuse the same 64-bit temporaries for efficiency. */
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static TCGv_i64 cpu_V0, cpu_V1, cpu_M0;
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static TCGv_i32 cpu_R[16];
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/* FIXME: These should be removed. */
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static TCGv cpu_F0s, cpu_F1s;
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static TCGv_i64 cpu_F0d, cpu_F1d;
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#include "gen-icount.h"
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static const char *regnames[] =
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{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" };
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/* initialize TCG globals. */
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void arm_translate_init(void)
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{
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int i;
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cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
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for (i = 0; i < 16; i++) {
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cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
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offsetof(CPUState, regs[i]),
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regnames[i]);
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}
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#define GEN_HELPER 2
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#include "helpers.h"
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}
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static int num_temps;
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/* Allocate a temporary variable. */
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static TCGv_i32 new_tmp(void)
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{
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num_temps++;
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return tcg_temp_new_i32();
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}
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/* Release a temporary variable. */
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static void dead_tmp(TCGv tmp)
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{
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tcg_temp_free(tmp);
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num_temps--;
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}
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static inline TCGv load_cpu_offset(int offset)
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{
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TCGv tmp = new_tmp();
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tcg_gen_ld_i32(tmp, cpu_env, offset);
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return tmp;
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}
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#define load_cpu_field(name) load_cpu_offset(offsetof(CPUState, name))
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static inline void store_cpu_offset(TCGv var, int offset)
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{
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tcg_gen_st_i32(var, cpu_env, offset);
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dead_tmp(var);
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}
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#define store_cpu_field(var, name) \
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store_cpu_offset(var, offsetof(CPUState, name))
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/* Set a variable to the value of a CPU register. */
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static void load_reg_var(DisasContext *s, TCGv var, int reg)
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{
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if (reg == 15) {
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uint32_t addr;
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/* normaly, since we updated PC, we need only to add one insn */
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if (s->thumb)
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addr = (long)s->pc + 2;
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else
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addr = (long)s->pc + 4;
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tcg_gen_movi_i32(var, addr);
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} else {
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tcg_gen_mov_i32(var, cpu_R[reg]);
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}
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}
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/* Create a new temporary and set it to the value of a CPU register. */
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static inline TCGv load_reg(DisasContext *s, int reg)
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{
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TCGv tmp = new_tmp();
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load_reg_var(s, tmp, reg);
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return tmp;
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}
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/* Set a CPU register. The source must be a temporary and will be
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marked as dead. */
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static void store_reg(DisasContext *s, int reg, TCGv var)
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{
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if (reg == 15) {
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tcg_gen_andi_i32(var, var, ~1);
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s->is_jmp = DISAS_JUMP;
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}
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tcg_gen_mov_i32(cpu_R[reg], var);
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dead_tmp(var);
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}
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/* Value extensions. */
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#define gen_uxtb(var) tcg_gen_ext8u_i32(var, var)
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#define gen_uxth(var) tcg_gen_ext16u_i32(var, var)
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#define gen_sxtb(var) tcg_gen_ext8s_i32(var, var)
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#define gen_sxth(var) tcg_gen_ext16s_i32(var, var)
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#define gen_sxtb16(var) gen_helper_sxtb16(var, var)
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#define gen_uxtb16(var) gen_helper_uxtb16(var, var)
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static inline void gen_set_cpsr(TCGv var, uint32_t mask)
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{
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TCGv tmp_mask = tcg_const_i32(mask);
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gen_helper_cpsr_write(var, tmp_mask);
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tcg_temp_free_i32(tmp_mask);
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}
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/* Set NZCV flags from the high 4 bits of var. */
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#define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV)
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static void gen_exception(int excp)
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{
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TCGv tmp = new_tmp();
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tcg_gen_movi_i32(tmp, excp);
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gen_helper_exception(tmp);
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dead_tmp(tmp);
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}
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static void gen_smul_dual(TCGv a, TCGv b)
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{
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TCGv tmp1 = new_tmp();
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TCGv tmp2 = new_tmp();
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tcg_gen_ext16s_i32(tmp1, a);
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tcg_gen_ext16s_i32(tmp2, b);
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tcg_gen_mul_i32(tmp1, tmp1, tmp2);
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dead_tmp(tmp2);
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tcg_gen_sari_i32(a, a, 16);
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tcg_gen_sari_i32(b, b, 16);
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tcg_gen_mul_i32(b, b, a);
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tcg_gen_mov_i32(a, tmp1);
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dead_tmp(tmp1);
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}
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/* Byteswap each halfword. */
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static void gen_rev16(TCGv var)
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{
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TCGv tmp = new_tmp();
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tcg_gen_shri_i32(tmp, var, 8);
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tcg_gen_andi_i32(tmp, tmp, 0x00ff00ff);
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tcg_gen_shli_i32(var, var, 8);
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tcg_gen_andi_i32(var, var, 0xff00ff00);
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tcg_gen_or_i32(var, var, tmp);
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dead_tmp(tmp);
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}
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/* Byteswap low halfword and sign extend. */
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static void gen_revsh(TCGv var)
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{
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TCGv tmp = new_tmp();
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tcg_gen_shri_i32(tmp, var, 8);
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tcg_gen_andi_i32(tmp, tmp, 0x00ff);
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tcg_gen_shli_i32(var, var, 8);
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tcg_gen_ext8s_i32(var, var);
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tcg_gen_or_i32(var, var, tmp);
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dead_tmp(tmp);
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}
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/* Unsigned bitfield extract. */
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static void gen_ubfx(TCGv var, int shift, uint32_t mask)
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{
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if (shift)
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tcg_gen_shri_i32(var, var, shift);
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tcg_gen_andi_i32(var, var, mask);
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}
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/* Signed bitfield extract. */
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static void gen_sbfx(TCGv var, int shift, int width)
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{
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uint32_t signbit;
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if (shift)
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tcg_gen_sari_i32(var, var, shift);
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if (shift + width < 32) {
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signbit = 1u << (width - 1);
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tcg_gen_andi_i32(var, var, (1u << width) - 1);
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tcg_gen_xori_i32(var, var, signbit);
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tcg_gen_subi_i32(var, var, signbit);
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}
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}
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/* Bitfield insertion. Insert val into base. Clobbers base and val. */
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static void gen_bfi(TCGv dest, TCGv base, TCGv val, int shift, uint32_t mask)
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{
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tcg_gen_andi_i32(val, val, mask);
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tcg_gen_shli_i32(val, val, shift);
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tcg_gen_andi_i32(base, base, ~(mask << shift));
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tcg_gen_or_i32(dest, base, val);
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}
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/* Round the top 32 bits of a 64-bit value. */
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static void gen_roundqd(TCGv a, TCGv b)
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{
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tcg_gen_shri_i32(a, a, 31);
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tcg_gen_add_i32(a, a, b);
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}
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/* FIXME: Most targets have native widening multiplication.
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It would be good to use that instead of a full wide multiply. */
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/* 32x32->64 multiply. Marks inputs as dead. */
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static TCGv_i64 gen_mulu_i64_i32(TCGv a, TCGv b)
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{
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TCGv_i64 tmp1 = tcg_temp_new_i64();
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TCGv_i64 tmp2 = tcg_temp_new_i64();
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tcg_gen_extu_i32_i64(tmp1, a);
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dead_tmp(a);
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tcg_gen_extu_i32_i64(tmp2, b);
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dead_tmp(b);
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tcg_gen_mul_i64(tmp1, tmp1, tmp2);
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tcg_temp_free_i64(tmp2);
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return tmp1;
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}
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static TCGv_i64 gen_muls_i64_i32(TCGv a, TCGv b)
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{
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TCGv_i64 tmp1 = tcg_temp_new_i64();
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TCGv_i64 tmp2 = tcg_temp_new_i64();
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tcg_gen_ext_i32_i64(tmp1, a);
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dead_tmp(a);
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tcg_gen_ext_i32_i64(tmp2, b);
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dead_tmp(b);
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tcg_gen_mul_i64(tmp1, tmp1, tmp2);
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tcg_temp_free_i64(tmp2);
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return tmp1;
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}
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/* Signed 32x32->64 multiply. */
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static void gen_imull(TCGv a, TCGv b)
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{
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TCGv_i64 tmp1 = tcg_temp_new_i64();
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TCGv_i64 tmp2 = tcg_temp_new_i64();
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tcg_gen_ext_i32_i64(tmp1, a);
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tcg_gen_ext_i32_i64(tmp2, b);
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tcg_gen_mul_i64(tmp1, tmp1, tmp2);
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tcg_temp_free_i64(tmp2);
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tcg_gen_trunc_i64_i32(a, tmp1);
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tcg_gen_shri_i64(tmp1, tmp1, 32);
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tcg_gen_trunc_i64_i32(b, tmp1);
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tcg_temp_free_i64(tmp1);
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}
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/* Swap low and high halfwords. */
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static void gen_swap_half(TCGv var)
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{
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TCGv tmp = new_tmp();
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tcg_gen_shri_i32(tmp, var, 16);
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tcg_gen_shli_i32(var, var, 16);
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tcg_gen_or_i32(var, var, tmp);
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dead_tmp(tmp);
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}
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/* Dual 16-bit add. Result placed in t0 and t1 is marked as dead.
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tmp = (t0 ^ t1) & 0x8000;
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t0 &= ~0x8000;
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t1 &= ~0x8000;
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t0 = (t0 + t1) ^ tmp;
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*/
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static void gen_add16(TCGv t0, TCGv t1)
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{
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TCGv tmp = new_tmp();
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tcg_gen_xor_i32(tmp, t0, t1);
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tcg_gen_andi_i32(tmp, tmp, 0x8000);
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tcg_gen_andi_i32(t0, t0, ~0x8000);
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tcg_gen_andi_i32(t1, t1, ~0x8000);
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tcg_gen_add_i32(t0, t0, t1);
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tcg_gen_xor_i32(t0, t0, tmp);
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dead_tmp(tmp);
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dead_tmp(t1);
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}
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#define gen_set_CF(var) tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, CF))
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/* Set CF to the top bit of var. */
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static void gen_set_CF_bit31(TCGv var)
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{
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TCGv tmp = new_tmp();
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tcg_gen_shri_i32(tmp, var, 31);
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gen_set_CF(tmp);
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dead_tmp(tmp);
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}
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/* Set N and Z flags from var. */
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static inline void gen_logic_CC(TCGv var)
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{
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tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, NF));
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tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, ZF));
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}
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/* T0 += T1 + CF. */
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static void gen_adc(TCGv t0, TCGv t1)
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{
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TCGv tmp;
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tcg_gen_add_i32(t0, t0, t1);
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tmp = load_cpu_field(CF);
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tcg_gen_add_i32(t0, t0, tmp);
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dead_tmp(tmp);
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}
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/* dest = T0 + T1 + CF. */
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static void gen_add_carry(TCGv dest, TCGv t0, TCGv t1)
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{
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TCGv tmp;
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tcg_gen_add_i32(dest, t0, t1);
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tmp = load_cpu_field(CF);
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tcg_gen_add_i32(dest, dest, tmp);
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dead_tmp(tmp);
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}
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/* dest = T0 - T1 + CF - 1. */
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static void gen_sub_carry(TCGv dest, TCGv t0, TCGv t1)
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{
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TCGv tmp;
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tcg_gen_sub_i32(dest, t0, t1);
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tmp = load_cpu_field(CF);
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tcg_gen_add_i32(dest, dest, tmp);
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tcg_gen_subi_i32(dest, dest, 1);
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dead_tmp(tmp);
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}
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/* FIXME: Implement this natively. */
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#define tcg_gen_abs_i32(t0, t1) gen_helper_abs(t0, t1)
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static void shifter_out_im(TCGv var, int shift)
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{
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TCGv tmp = new_tmp();
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if (shift == 0) {
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tcg_gen_andi_i32(tmp, var, 1);
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} else {
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tcg_gen_shri_i32(tmp, var, shift);
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if (shift != 31)
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tcg_gen_andi_i32(tmp, tmp, 1);
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}
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gen_set_CF(tmp);
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dead_tmp(tmp);
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}
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/* Shift by immediate. Includes special handling for shift == 0. */
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static inline void gen_arm_shift_im(TCGv var, int shiftop, int shift, int flags)
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{
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switch (shiftop) {
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case 0: /* LSL */
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if (shift != 0) {
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if (flags)
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shifter_out_im(var, 32 - shift);
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tcg_gen_shli_i32(var, var, shift);
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}
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break;
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case 1: /* LSR */
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if (shift == 0) {
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if (flags) {
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tcg_gen_shri_i32(var, var, 31);
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gen_set_CF(var);
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}
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tcg_gen_movi_i32(var, 0);
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} else {
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if (flags)
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shifter_out_im(var, shift - 1);
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tcg_gen_shri_i32(var, var, shift);
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}
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break;
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case 2: /* ASR */
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if (shift == 0)
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shift = 32;
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if (flags)
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shifter_out_im(var, shift - 1);
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if (shift == 32)
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shift = 31;
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tcg_gen_sari_i32(var, var, shift);
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break;
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case 3: /* ROR/RRX */
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if (shift != 0) {
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if (flags)
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shifter_out_im(var, shift - 1);
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tcg_gen_rotri_i32(var, var, shift); break;
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} else {
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TCGv tmp = load_cpu_field(CF);
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if (flags)
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shifter_out_im(var, 0);
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tcg_gen_shri_i32(var, var, 1);
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tcg_gen_shli_i32(tmp, tmp, 31);
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tcg_gen_or_i32(var, var, tmp);
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dead_tmp(tmp);
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|
}
|
|
}
|
|
};
|
|
|
|
static inline void gen_arm_shift_reg(TCGv var, int shiftop,
|
|
TCGv shift, int flags)
|
|
{
|
|
if (flags) {
|
|
switch (shiftop) {
|
|
case 0: gen_helper_shl_cc(var, var, shift); break;
|
|
case 1: gen_helper_shr_cc(var, var, shift); break;
|
|
case 2: gen_helper_sar_cc(var, var, shift); break;
|
|
case 3: gen_helper_ror_cc(var, var, shift); break;
|
|
}
|
|
} else {
|
|
switch (shiftop) {
|
|
case 0: gen_helper_shl(var, var, shift); break;
|
|
case 1: gen_helper_shr(var, var, shift); break;
|
|
case 2: gen_helper_sar(var, var, shift); break;
|
|
case 3: tcg_gen_andi_i32(shift, shift, 0x1f);
|
|
tcg_gen_rotr_i32(var, var, shift); break;
|
|
}
|
|
}
|
|
dead_tmp(shift);
|
|
}
|
|
|
|
#define PAS_OP(pfx) \
|
|
switch (op2) { \
|
|
case 0: gen_pas_helper(glue(pfx,add16)); break; \
|
|
case 1: gen_pas_helper(glue(pfx,addsubx)); break; \
|
|
case 2: gen_pas_helper(glue(pfx,subaddx)); break; \
|
|
case 3: gen_pas_helper(glue(pfx,sub16)); break; \
|
|
case 4: gen_pas_helper(glue(pfx,add8)); break; \
|
|
case 7: gen_pas_helper(glue(pfx,sub8)); break; \
|
|
}
|
|
static void gen_arm_parallel_addsub(int op1, int op2, TCGv a, TCGv b)
|
|
{
|
|
TCGv_ptr tmp;
|
|
|
|
switch (op1) {
|
|
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
|
case 1:
|
|
tmp = tcg_temp_new_ptr();
|
|
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
|
|
PAS_OP(s)
|
|
tcg_temp_free_ptr(tmp);
|
|
break;
|
|
case 5:
|
|
tmp = tcg_temp_new_ptr();
|
|
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
|
|
PAS_OP(u)
|
|
tcg_temp_free_ptr(tmp);
|
|
break;
|
|
#undef gen_pas_helper
|
|
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
|
case 2:
|
|
PAS_OP(q);
|
|
break;
|
|
case 3:
|
|
PAS_OP(sh);
|
|
break;
|
|
case 6:
|
|
PAS_OP(uq);
|
|
break;
|
|
case 7:
|
|
PAS_OP(uh);
|
|
break;
|
|
#undef gen_pas_helper
|
|
}
|
|
}
|
|
#undef PAS_OP
|
|
|
|
/* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */
|
|
#define PAS_OP(pfx) \
|
|
switch (op2) { \
|
|
case 0: gen_pas_helper(glue(pfx,add8)); break; \
|
|
case 1: gen_pas_helper(glue(pfx,add16)); break; \
|
|
case 2: gen_pas_helper(glue(pfx,addsubx)); break; \
|
|
case 4: gen_pas_helper(glue(pfx,sub8)); break; \
|
|
case 5: gen_pas_helper(glue(pfx,sub16)); break; \
|
|
case 6: gen_pas_helper(glue(pfx,subaddx)); break; \
|
|
}
|
|
static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv a, TCGv b)
|
|
{
|
|
TCGv_ptr tmp;
|
|
|
|
switch (op1) {
|
|
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
|
|
case 0:
|
|
tmp = tcg_temp_new_ptr();
|
|
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
|
|
PAS_OP(s)
|
|
tcg_temp_free_ptr(tmp);
|
|
break;
|
|
case 4:
|
|
tmp = tcg_temp_new_ptr();
|
|
tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
|
|
PAS_OP(u)
|
|
tcg_temp_free_ptr(tmp);
|
|
break;
|
|
#undef gen_pas_helper
|
|
#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
|
|
case 1:
|
|
PAS_OP(q);
|
|
break;
|
|
case 2:
|
|
PAS_OP(sh);
|
|
break;
|
|
case 5:
|
|
PAS_OP(uq);
|
|
break;
|
|
case 6:
|
|
PAS_OP(uh);
|
|
break;
|
|
#undef gen_pas_helper
|
|
}
|
|
}
|
|
#undef PAS_OP
|
|
|
|
static void gen_test_cc(int cc, int label)
|
|
{
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
int inv;
|
|
|
|
switch (cc) {
|
|
case 0: /* eq: Z */
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
|
break;
|
|
case 1: /* ne: !Z */
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
|
break;
|
|
case 2: /* cs: C */
|
|
tmp = load_cpu_field(CF);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
|
break;
|
|
case 3: /* cc: !C */
|
|
tmp = load_cpu_field(CF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
|
break;
|
|
case 4: /* mi: N */
|
|
tmp = load_cpu_field(NF);
|
|
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
|
break;
|
|
case 5: /* pl: !N */
|
|
tmp = load_cpu_field(NF);
|
|
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
|
break;
|
|
case 6: /* vs: V */
|
|
tmp = load_cpu_field(VF);
|
|
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
|
break;
|
|
case 7: /* vc: !V */
|
|
tmp = load_cpu_field(VF);
|
|
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
|
break;
|
|
case 8: /* hi: C && !Z */
|
|
inv = gen_new_label();
|
|
tmp = load_cpu_field(CF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
|
|
dead_tmp(tmp);
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
|
|
gen_set_label(inv);
|
|
break;
|
|
case 9: /* ls: !C || Z */
|
|
tmp = load_cpu_field(CF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
|
dead_tmp(tmp);
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
|
break;
|
|
case 10: /* ge: N == V -> N ^ V == 0 */
|
|
tmp = load_cpu_field(VF);
|
|
tmp2 = load_cpu_field(NF);
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
|
break;
|
|
case 11: /* lt: N != V -> N ^ V != 0 */
|
|
tmp = load_cpu_field(VF);
|
|
tmp2 = load_cpu_field(NF);
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
|
break;
|
|
case 12: /* gt: !Z && N == V */
|
|
inv = gen_new_label();
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
|
|
dead_tmp(tmp);
|
|
tmp = load_cpu_field(VF);
|
|
tmp2 = load_cpu_field(NF);
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
|
|
gen_set_label(inv);
|
|
break;
|
|
case 13: /* le: Z || N != V */
|
|
tmp = load_cpu_field(ZF);
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
|
|
dead_tmp(tmp);
|
|
tmp = load_cpu_field(VF);
|
|
tmp2 = load_cpu_field(NF);
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Bad condition code 0x%x\n", cc);
|
|
abort();
|
|
}
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static const uint8_t table_logic_cc[16] = {
|
|
1, /* and */
|
|
1, /* xor */
|
|
0, /* sub */
|
|
0, /* rsb */
|
|
0, /* add */
|
|
0, /* adc */
|
|
0, /* sbc */
|
|
0, /* rsc */
|
|
1, /* andl */
|
|
1, /* xorl */
|
|
0, /* cmp */
|
|
0, /* cmn */
|
|
1, /* orr */
|
|
1, /* mov */
|
|
1, /* bic */
|
|
1, /* mvn */
|
|
};
|
|
|
|
/* Set PC and Thumb state from an immediate address. */
|
|
static inline void gen_bx_im(DisasContext *s, uint32_t addr)
|
|
{
|
|
TCGv tmp;
|
|
|
|
s->is_jmp = DISAS_UPDATE;
|
|
if (s->thumb != (addr & 1)) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, addr & 1);
|
|
tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, thumb));
|
|
dead_tmp(tmp);
|
|
}
|
|
tcg_gen_movi_i32(cpu_R[15], addr & ~1);
|
|
}
|
|
|
|
/* Set PC and Thumb state from var. var is marked as dead. */
|
|
static inline void gen_bx(DisasContext *s, TCGv var)
|
|
{
|
|
s->is_jmp = DISAS_UPDATE;
|
|
tcg_gen_andi_i32(cpu_R[15], var, ~1);
|
|
tcg_gen_andi_i32(var, var, 1);
|
|
store_cpu_field(var, thumb);
|
|
}
|
|
|
|
/* Variant of store_reg which uses branch&exchange logic when storing
|
|
to r15 in ARM architecture v7 and above. The source must be a temporary
|
|
and will be marked as dead. */
|
|
static inline void store_reg_bx(CPUState *env, DisasContext *s,
|
|
int reg, TCGv var)
|
|
{
|
|
if (reg == 15 && ENABLE_ARCH_7) {
|
|
gen_bx(s, var);
|
|
} else {
|
|
store_reg(s, reg, var);
|
|
}
|
|
}
|
|
|
|
static inline TCGv gen_ld8s(TCGv addr, int index)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_qemu_ld8s(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline TCGv gen_ld8u(TCGv addr, int index)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_qemu_ld8u(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline TCGv gen_ld16s(TCGv addr, int index)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_qemu_ld16s(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline TCGv gen_ld16u(TCGv addr, int index)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_qemu_ld16u(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline TCGv gen_ld32(TCGv addr, int index)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_qemu_ld32u(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline TCGv_i64 gen_ld64(TCGv addr, int index)
|
|
{
|
|
TCGv_i64 tmp = tcg_temp_new_i64();
|
|
tcg_gen_qemu_ld64(tmp, addr, index);
|
|
return tmp;
|
|
}
|
|
static inline void gen_st8(TCGv val, TCGv addr, int index)
|
|
{
|
|
tcg_gen_qemu_st8(val, addr, index);
|
|
dead_tmp(val);
|
|
}
|
|
static inline void gen_st16(TCGv val, TCGv addr, int index)
|
|
{
|
|
tcg_gen_qemu_st16(val, addr, index);
|
|
dead_tmp(val);
|
|
}
|
|
static inline void gen_st32(TCGv val, TCGv addr, int index)
|
|
{
|
|
tcg_gen_qemu_st32(val, addr, index);
|
|
dead_tmp(val);
|
|
}
|
|
static inline void gen_st64(TCGv_i64 val, TCGv addr, int index)
|
|
{
|
|
tcg_gen_qemu_st64(val, addr, index);
|
|
tcg_temp_free_i64(val);
|
|
}
|
|
|
|
static inline void gen_set_pc_im(uint32_t val)
|
|
{
|
|
tcg_gen_movi_i32(cpu_R[15], val);
|
|
}
|
|
|
|
/* Force a TB lookup after an instruction that changes the CPU state. */
|
|
static inline void gen_lookup_tb(DisasContext *s)
|
|
{
|
|
tcg_gen_movi_i32(cpu_R[15], s->pc & ~1);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
|
|
static inline void gen_add_data_offset(DisasContext *s, unsigned int insn,
|
|
TCGv var)
|
|
{
|
|
int val, rm, shift, shiftop;
|
|
TCGv offset;
|
|
|
|
if (!(insn & (1 << 25))) {
|
|
/* immediate */
|
|
val = insn & 0xfff;
|
|
if (!(insn & (1 << 23)))
|
|
val = -val;
|
|
if (val != 0)
|
|
tcg_gen_addi_i32(var, var, val);
|
|
} else {
|
|
/* shift/register */
|
|
rm = (insn) & 0xf;
|
|
shift = (insn >> 7) & 0x1f;
|
|
shiftop = (insn >> 5) & 3;
|
|
offset = load_reg(s, rm);
|
|
gen_arm_shift_im(offset, shiftop, shift, 0);
|
|
if (!(insn & (1 << 23)))
|
|
tcg_gen_sub_i32(var, var, offset);
|
|
else
|
|
tcg_gen_add_i32(var, var, offset);
|
|
dead_tmp(offset);
|
|
}
|
|
}
|
|
|
|
static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn,
|
|
int extra, TCGv var)
|
|
{
|
|
int val, rm;
|
|
TCGv offset;
|
|
|
|
if (insn & (1 << 22)) {
|
|
/* immediate */
|
|
val = (insn & 0xf) | ((insn >> 4) & 0xf0);
|
|
if (!(insn & (1 << 23)))
|
|
val = -val;
|
|
val += extra;
|
|
if (val != 0)
|
|
tcg_gen_addi_i32(var, var, val);
|
|
} else {
|
|
/* register */
|
|
if (extra)
|
|
tcg_gen_addi_i32(var, var, extra);
|
|
rm = (insn) & 0xf;
|
|
offset = load_reg(s, rm);
|
|
if (!(insn & (1 << 23)))
|
|
tcg_gen_sub_i32(var, var, offset);
|
|
else
|
|
tcg_gen_add_i32(var, var, offset);
|
|
dead_tmp(offset);
|
|
}
|
|
}
|
|
|
|
#define VFP_OP2(name) \
|
|
static inline void gen_vfp_##name(int dp) \
|
|
{ \
|
|
if (dp) \
|
|
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, cpu_F1d, cpu_env); \
|
|
else \
|
|
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, cpu_F1s, cpu_env); \
|
|
}
|
|
|
|
VFP_OP2(add)
|
|
VFP_OP2(sub)
|
|
VFP_OP2(mul)
|
|
VFP_OP2(div)
|
|
|
|
#undef VFP_OP2
|
|
|
|
static inline void gen_vfp_abs(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_absd(cpu_F0d, cpu_F0d);
|
|
else
|
|
gen_helper_vfp_abss(cpu_F0s, cpu_F0s);
|
|
}
|
|
|
|
static inline void gen_vfp_neg(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_negd(cpu_F0d, cpu_F0d);
|
|
else
|
|
gen_helper_vfp_negs(cpu_F0s, cpu_F0s);
|
|
}
|
|
|
|
static inline void gen_vfp_sqrt(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_sqrtd(cpu_F0d, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_sqrts(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_cmp(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_cmpd(cpu_F0d, cpu_F1d, cpu_env);
|
|
else
|
|
gen_helper_vfp_cmps(cpu_F0s, cpu_F1s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_cmpe(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_cmped(cpu_F0d, cpu_F1d, cpu_env);
|
|
else
|
|
gen_helper_vfp_cmpes(cpu_F0s, cpu_F1s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_F1_ld0(int dp)
|
|
{
|
|
if (dp)
|
|
tcg_gen_movi_i64(cpu_F1d, 0);
|
|
else
|
|
tcg_gen_movi_i32(cpu_F1s, 0);
|
|
}
|
|
|
|
static inline void gen_vfp_uito(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_uitod(cpu_F0d, cpu_F0s, cpu_env);
|
|
else
|
|
gen_helper_vfp_uitos(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_sito(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_sitod(cpu_F0d, cpu_F0s, cpu_env);
|
|
else
|
|
gen_helper_vfp_sitos(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_toui(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_touid(cpu_F0s, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_touis(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_touiz(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_touizd(cpu_F0s, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_touizs(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_tosi(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_tosid(cpu_F0s, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_tosis(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
static inline void gen_vfp_tosiz(int dp)
|
|
{
|
|
if (dp)
|
|
gen_helper_vfp_tosizd(cpu_F0s, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_tosizs(cpu_F0s, cpu_F0s, cpu_env);
|
|
}
|
|
|
|
#define VFP_GEN_FIX(name) \
|
|
static inline void gen_vfp_##name(int dp, int shift) \
|
|
{ \
|
|
TCGv tmp_shift = tcg_const_i32(shift); \
|
|
if (dp) \
|
|
gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, tmp_shift, cpu_env);\
|
|
else \
|
|
gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, tmp_shift, cpu_env);\
|
|
tcg_temp_free_i32(tmp_shift); \
|
|
}
|
|
VFP_GEN_FIX(tosh)
|
|
VFP_GEN_FIX(tosl)
|
|
VFP_GEN_FIX(touh)
|
|
VFP_GEN_FIX(toul)
|
|
VFP_GEN_FIX(shto)
|
|
VFP_GEN_FIX(slto)
|
|
VFP_GEN_FIX(uhto)
|
|
VFP_GEN_FIX(ulto)
|
|
#undef VFP_GEN_FIX
|
|
|
|
static inline void gen_vfp_ld(DisasContext *s, int dp, TCGv addr)
|
|
{
|
|
if (dp)
|
|
tcg_gen_qemu_ld64(cpu_F0d, addr, IS_USER(s));
|
|
else
|
|
tcg_gen_qemu_ld32u(cpu_F0s, addr, IS_USER(s));
|
|
}
|
|
|
|
static inline void gen_vfp_st(DisasContext *s, int dp, TCGv addr)
|
|
{
|
|
if (dp)
|
|
tcg_gen_qemu_st64(cpu_F0d, addr, IS_USER(s));
|
|
else
|
|
tcg_gen_qemu_st32(cpu_F0s, addr, IS_USER(s));
|
|
}
|
|
|
|
static inline long
|
|
vfp_reg_offset (int dp, int reg)
|
|
{
|
|
if (dp)
|
|
return offsetof(CPUARMState, vfp.regs[reg]);
|
|
else if (reg & 1) {
|
|
return offsetof(CPUARMState, vfp.regs[reg >> 1])
|
|
+ offsetof(CPU_DoubleU, l.upper);
|
|
} else {
|
|
return offsetof(CPUARMState, vfp.regs[reg >> 1])
|
|
+ offsetof(CPU_DoubleU, l.lower);
|
|
}
|
|
}
|
|
|
|
/* Return the offset of a 32-bit piece of a NEON register.
|
|
zero is the least significant end of the register. */
|
|
static inline long
|
|
neon_reg_offset (int reg, int n)
|
|
{
|
|
int sreg;
|
|
sreg = reg * 2 + n;
|
|
return vfp_reg_offset(0, sreg);
|
|
}
|
|
|
|
static TCGv neon_load_reg(int reg, int pass)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass));
|
|
return tmp;
|
|
}
|
|
|
|
static void neon_store_reg(int reg, int pass, TCGv var)
|
|
{
|
|
tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass));
|
|
dead_tmp(var);
|
|
}
|
|
|
|
static inline void neon_load_reg64(TCGv_i64 var, int reg)
|
|
{
|
|
tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
|
}
|
|
|
|
static inline void neon_store_reg64(TCGv_i64 var, int reg)
|
|
{
|
|
tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg));
|
|
}
|
|
|
|
#define tcg_gen_ld_f32 tcg_gen_ld_i32
|
|
#define tcg_gen_ld_f64 tcg_gen_ld_i64
|
|
#define tcg_gen_st_f32 tcg_gen_st_i32
|
|
#define tcg_gen_st_f64 tcg_gen_st_i64
|
|
|
|
static inline void gen_mov_F0_vreg(int dp, int reg)
|
|
{
|
|
if (dp)
|
|
tcg_gen_ld_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg));
|
|
else
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg));
|
|
}
|
|
|
|
static inline void gen_mov_F1_vreg(int dp, int reg)
|
|
{
|
|
if (dp)
|
|
tcg_gen_ld_f64(cpu_F1d, cpu_env, vfp_reg_offset(dp, reg));
|
|
else
|
|
tcg_gen_ld_f32(cpu_F1s, cpu_env, vfp_reg_offset(dp, reg));
|
|
}
|
|
|
|
static inline void gen_mov_vreg_F0(int dp, int reg)
|
|
{
|
|
if (dp)
|
|
tcg_gen_st_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg));
|
|
else
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg));
|
|
}
|
|
|
|
#define ARM_CP_RW_BIT (1 << 20)
|
|
|
|
static inline void iwmmxt_load_reg(TCGv_i64 var, int reg)
|
|
{
|
|
tcg_gen_ld_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg]));
|
|
}
|
|
|
|
static inline void iwmmxt_store_reg(TCGv_i64 var, int reg)
|
|
{
|
|
tcg_gen_st_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg]));
|
|
}
|
|
|
|
static inline TCGv iwmmxt_load_creg(int reg)
|
|
{
|
|
TCGv var = new_tmp();
|
|
tcg_gen_ld_i32(var, cpu_env, offsetof(CPUState, iwmmxt.cregs[reg]));
|
|
return var;
|
|
}
|
|
|
|
static inline void iwmmxt_store_creg(int reg, TCGv var)
|
|
{
|
|
tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, iwmmxt.cregs[reg]));
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_movq_wRn_M0(int rn)
|
|
{
|
|
iwmmxt_store_reg(cpu_M0, rn);
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_movq_M0_wRn(int rn)
|
|
{
|
|
iwmmxt_load_reg(cpu_M0, rn);
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_orq_M0_wRn(int rn)
|
|
{
|
|
iwmmxt_load_reg(cpu_V1, rn);
|
|
tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1);
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_andq_M0_wRn(int rn)
|
|
{
|
|
iwmmxt_load_reg(cpu_V1, rn);
|
|
tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1);
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn)
|
|
{
|
|
iwmmxt_load_reg(cpu_V1, rn);
|
|
tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1);
|
|
}
|
|
|
|
#define IWMMXT_OP(name) \
|
|
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \
|
|
{ \
|
|
iwmmxt_load_reg(cpu_V1, rn); \
|
|
gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \
|
|
}
|
|
|
|
#define IWMMXT_OP_ENV(name) \
|
|
static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \
|
|
{ \
|
|
iwmmxt_load_reg(cpu_V1, rn); \
|
|
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \
|
|
}
|
|
|
|
#define IWMMXT_OP_ENV_SIZE(name) \
|
|
IWMMXT_OP_ENV(name##b) \
|
|
IWMMXT_OP_ENV(name##w) \
|
|
IWMMXT_OP_ENV(name##l)
|
|
|
|
#define IWMMXT_OP_ENV1(name) \
|
|
static inline void gen_op_iwmmxt_##name##_M0(void) \
|
|
{ \
|
|
gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \
|
|
}
|
|
|
|
IWMMXT_OP(maddsq)
|
|
IWMMXT_OP(madduq)
|
|
IWMMXT_OP(sadb)
|
|
IWMMXT_OP(sadw)
|
|
IWMMXT_OP(mulslw)
|
|
IWMMXT_OP(mulshw)
|
|
IWMMXT_OP(mululw)
|
|
IWMMXT_OP(muluhw)
|
|
IWMMXT_OP(macsw)
|
|
IWMMXT_OP(macuw)
|
|
|
|
IWMMXT_OP_ENV_SIZE(unpackl)
|
|
IWMMXT_OP_ENV_SIZE(unpackh)
|
|
|
|
IWMMXT_OP_ENV1(unpacklub)
|
|
IWMMXT_OP_ENV1(unpackluw)
|
|
IWMMXT_OP_ENV1(unpacklul)
|
|
IWMMXT_OP_ENV1(unpackhub)
|
|
IWMMXT_OP_ENV1(unpackhuw)
|
|
IWMMXT_OP_ENV1(unpackhul)
|
|
IWMMXT_OP_ENV1(unpacklsb)
|
|
IWMMXT_OP_ENV1(unpacklsw)
|
|
IWMMXT_OP_ENV1(unpacklsl)
|
|
IWMMXT_OP_ENV1(unpackhsb)
|
|
IWMMXT_OP_ENV1(unpackhsw)
|
|
IWMMXT_OP_ENV1(unpackhsl)
|
|
|
|
IWMMXT_OP_ENV_SIZE(cmpeq)
|
|
IWMMXT_OP_ENV_SIZE(cmpgtu)
|
|
IWMMXT_OP_ENV_SIZE(cmpgts)
|
|
|
|
IWMMXT_OP_ENV_SIZE(mins)
|
|
IWMMXT_OP_ENV_SIZE(minu)
|
|
IWMMXT_OP_ENV_SIZE(maxs)
|
|
IWMMXT_OP_ENV_SIZE(maxu)
|
|
|
|
IWMMXT_OP_ENV_SIZE(subn)
|
|
IWMMXT_OP_ENV_SIZE(addn)
|
|
IWMMXT_OP_ENV_SIZE(subu)
|
|
IWMMXT_OP_ENV_SIZE(addu)
|
|
IWMMXT_OP_ENV_SIZE(subs)
|
|
IWMMXT_OP_ENV_SIZE(adds)
|
|
|
|
IWMMXT_OP_ENV(avgb0)
|
|
IWMMXT_OP_ENV(avgb1)
|
|
IWMMXT_OP_ENV(avgw0)
|
|
IWMMXT_OP_ENV(avgw1)
|
|
|
|
IWMMXT_OP(msadb)
|
|
|
|
IWMMXT_OP_ENV(packuw)
|
|
IWMMXT_OP_ENV(packul)
|
|
IWMMXT_OP_ENV(packuq)
|
|
IWMMXT_OP_ENV(packsw)
|
|
IWMMXT_OP_ENV(packsl)
|
|
IWMMXT_OP_ENV(packsq)
|
|
|
|
static void gen_op_iwmmxt_set_mup(void)
|
|
{
|
|
TCGv tmp;
|
|
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]);
|
|
tcg_gen_ori_i32(tmp, tmp, 2);
|
|
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]);
|
|
}
|
|
|
|
static void gen_op_iwmmxt_set_cup(void)
|
|
{
|
|
TCGv tmp;
|
|
tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]);
|
|
tcg_gen_ori_i32(tmp, tmp, 1);
|
|
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]);
|
|
}
|
|
|
|
static void gen_op_iwmmxt_setpsr_nz(void)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0);
|
|
store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]);
|
|
}
|
|
|
|
static inline void gen_op_iwmmxt_addl_M0_wRn(int rn)
|
|
{
|
|
iwmmxt_load_reg(cpu_V1, rn);
|
|
tcg_gen_ext32u_i64(cpu_V1, cpu_V1);
|
|
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1);
|
|
}
|
|
|
|
static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn, TCGv dest)
|
|
{
|
|
int rd;
|
|
uint32_t offset;
|
|
TCGv tmp;
|
|
|
|
rd = (insn >> 16) & 0xf;
|
|
tmp = load_reg(s, rd);
|
|
|
|
offset = (insn & 0xff) << ((insn >> 7) & 2);
|
|
if (insn & (1 << 24)) {
|
|
/* Pre indexed */
|
|
if (insn & (1 << 23))
|
|
tcg_gen_addi_i32(tmp, tmp, offset);
|
|
else
|
|
tcg_gen_addi_i32(tmp, tmp, -offset);
|
|
tcg_gen_mov_i32(dest, tmp);
|
|
if (insn & (1 << 21))
|
|
store_reg(s, rd, tmp);
|
|
else
|
|
dead_tmp(tmp);
|
|
} else if (insn & (1 << 21)) {
|
|
/* Post indexed */
|
|
tcg_gen_mov_i32(dest, tmp);
|
|
if (insn & (1 << 23))
|
|
tcg_gen_addi_i32(tmp, tmp, offset);
|
|
else
|
|
tcg_gen_addi_i32(tmp, tmp, -offset);
|
|
store_reg(s, rd, tmp);
|
|
} else if (!(insn & (1 << 23)))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask, TCGv dest)
|
|
{
|
|
int rd = (insn >> 0) & 0xf;
|
|
TCGv tmp;
|
|
|
|
if (insn & (1 << 8)) {
|
|
if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) {
|
|
return 1;
|
|
} else {
|
|
tmp = iwmmxt_load_creg(rd);
|
|
}
|
|
} else {
|
|
tmp = new_tmp();
|
|
iwmmxt_load_reg(cpu_V0, rd);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_V0);
|
|
}
|
|
tcg_gen_andi_i32(tmp, tmp, mask);
|
|
tcg_gen_mov_i32(dest, tmp);
|
|
dead_tmp(tmp);
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble an iwMMXt instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int rd, wrd;
|
|
int rdhi, rdlo, rd0, rd1, i;
|
|
TCGv addr;
|
|
TCGv tmp, tmp2, tmp3;
|
|
|
|
if ((insn & 0x0e000e00) == 0x0c000000) {
|
|
if ((insn & 0x0fe00ff0) == 0x0c400000) {
|
|
wrd = insn & 0xf;
|
|
rdlo = (insn >> 12) & 0xf;
|
|
rdhi = (insn >> 16) & 0xf;
|
|
if (insn & ARM_CP_RW_BIT) { /* TMRRC */
|
|
iwmmxt_load_reg(cpu_V0, wrd);
|
|
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0);
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
|
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0);
|
|
} else { /* TMCRR */
|
|
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]);
|
|
iwmmxt_store_reg(cpu_V0, wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
wrd = (insn >> 12) & 0xf;
|
|
addr = new_tmp();
|
|
if (gen_iwmmxt_address(s, insn, addr)) {
|
|
dead_tmp(addr);
|
|
return 1;
|
|
}
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
if ((insn >> 28) == 0xf) { /* WLDRW wCx */
|
|
tmp = new_tmp();
|
|
tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s));
|
|
iwmmxt_store_creg(wrd, tmp);
|
|
} else {
|
|
i = 1;
|
|
if (insn & (1 << 8)) {
|
|
if (insn & (1 << 22)) { /* WLDRD */
|
|
tcg_gen_qemu_ld64(cpu_M0, addr, IS_USER(s));
|
|
i = 0;
|
|
} else { /* WLDRW wRd */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
}
|
|
} else {
|
|
if (insn & (1 << 22)) { /* WLDRH */
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
} else { /* WLDRB */
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
}
|
|
}
|
|
if (i) {
|
|
tcg_gen_extu_i32_i64(cpu_M0, tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
}
|
|
} else {
|
|
if ((insn >> 28) == 0xf) { /* WSTRW wCx */
|
|
tmp = iwmmxt_load_creg(wrd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
} else {
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
tmp = new_tmp();
|
|
if (insn & (1 << 8)) {
|
|
if (insn & (1 << 22)) { /* WSTRD */
|
|
dead_tmp(tmp);
|
|
tcg_gen_qemu_st64(cpu_M0, addr, IS_USER(s));
|
|
} else { /* WSTRW wRd */
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
} else {
|
|
if (insn & (1 << 22)) { /* WSTRH */
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
} else { /* WSTRB */
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if ((insn & 0x0f000000) != 0x0e000000)
|
|
return 1;
|
|
|
|
switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) {
|
|
case 0x000: /* WOR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_orq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x011: /* TMCR */
|
|
if (insn & 0xf)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
switch (wrd) {
|
|
case ARM_IWMMXT_wCID:
|
|
case ARM_IWMMXT_wCASF:
|
|
break;
|
|
case ARM_IWMMXT_wCon:
|
|
gen_op_iwmmxt_set_cup();
|
|
/* Fall through. */
|
|
case ARM_IWMMXT_wCSSF:
|
|
tmp = iwmmxt_load_creg(wrd);
|
|
tmp2 = load_reg(s, rd);
|
|
tcg_gen_andc_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
iwmmxt_store_creg(wrd, tmp);
|
|
break;
|
|
case ARM_IWMMXT_wCGR0:
|
|
case ARM_IWMMXT_wCGR1:
|
|
case ARM_IWMMXT_wCGR2:
|
|
case ARM_IWMMXT_wCGR3:
|
|
gen_op_iwmmxt_set_cup();
|
|
tmp = load_reg(s, rd);
|
|
iwmmxt_store_creg(wrd, tmp);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
break;
|
|
case 0x100: /* WXOR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_xorq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x111: /* TMRC */
|
|
if (insn & 0xf)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
tmp = iwmmxt_load_creg(wrd);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 0x300: /* WANDN */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tcg_gen_neg_i64(cpu_M0, cpu_M0);
|
|
gen_op_iwmmxt_andq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x200: /* WAND */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_andq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x810: case 0xa10: /* WMADD */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maddsq_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_madduq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_unpacklb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_unpacklw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_unpackll_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_unpackhb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_unpackhw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_unpackhl_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 22))
|
|
gen_op_iwmmxt_sadw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_sadb_M0_wRn(rd1);
|
|
if (!(insn & (1 << 20)))
|
|
gen_op_iwmmxt_addl_M0_wRn(wrd);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21)) {
|
|
if (insn & (1 << 20))
|
|
gen_op_iwmmxt_mulshw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_mulslw_M0_wRn(rd1);
|
|
} else {
|
|
if (insn & (1 << 20))
|
|
gen_op_iwmmxt_muluhw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_mululw_M0_wRn(rd1);
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_macsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_macuw_M0_wRn(rd1);
|
|
if (!(insn & (1 << 20))) {
|
|
iwmmxt_load_reg(cpu_V1, wrd);
|
|
tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1);
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_cmpeqb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_cmpeqw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_cmpeql_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 22)) {
|
|
if (insn & (1 << 20))
|
|
gen_op_iwmmxt_avgw1_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_avgw0_M0_wRn(rd1);
|
|
} else {
|
|
if (insn & (1 << 20))
|
|
gen_op_iwmmxt_avgb1_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_avgb0_M0_wRn(rd1);
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3));
|
|
tcg_gen_andi_i32(tmp, tmp, 7);
|
|
iwmmxt_load_reg(cpu_V1, rd1);
|
|
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp);
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */
|
|
if (((insn >> 6) & 3) == 3)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
tmp = load_reg(s, rd);
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0:
|
|
tmp2 = tcg_const_i32(0xff);
|
|
tmp3 = tcg_const_i32((insn & 7) << 3);
|
|
break;
|
|
case 1:
|
|
tmp2 = tcg_const_i32(0xffff);
|
|
tmp3 = tcg_const_i32((insn & 3) << 4);
|
|
break;
|
|
case 2:
|
|
tmp2 = tcg_const_i32(0xffffffff);
|
|
tmp3 = tcg_const_i32((insn & 1) << 5);
|
|
break;
|
|
default:
|
|
TCGV_UNUSED(tmp2);
|
|
TCGV_UNUSED(tmp3);
|
|
}
|
|
gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3);
|
|
tcg_temp_free(tmp3);
|
|
tcg_temp_free(tmp2);
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
if (rd == 15 || ((insn >> 22) & 3) == 3)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
tmp = new_tmp();
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
if (insn & 8) {
|
|
tcg_gen_ext8s_i32(tmp, tmp);
|
|
} else {
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff);
|
|
}
|
|
break;
|
|
case 1:
|
|
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
if (insn & 8) {
|
|
tcg_gen_ext16s_i32(tmp, tmp);
|
|
} else {
|
|
tcg_gen_andi_i32(tmp, tmp, 0xffff);
|
|
}
|
|
break;
|
|
case 2:
|
|
tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_M0);
|
|
break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */
|
|
if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3)
|
|
return 1;
|
|
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0);
|
|
break;
|
|
case 1:
|
|
tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4);
|
|
break;
|
|
case 2:
|
|
tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12);
|
|
break;
|
|
}
|
|
tcg_gen_shli_i32(tmp, tmp, 28);
|
|
gen_set_nzcv(tmp);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */
|
|
if (((insn >> 6) & 3) == 3)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
tmp = load_reg(s, rd);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0:
|
|
gen_helper_iwmmxt_bcstb(cpu_M0, tmp);
|
|
break;
|
|
case 1:
|
|
gen_helper_iwmmxt_bcstw(cpu_M0, tmp);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_bcstl(cpu_M0, tmp);
|
|
break;
|
|
}
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */
|
|
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3)
|
|
return 1;
|
|
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_mov_i32(tmp2, tmp);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
for (i = 0; i < 7; i ++) {
|
|
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 1:
|
|
for (i = 0; i < 3; i ++) {
|
|
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 2:
|
|
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
break;
|
|
}
|
|
gen_set_nzcv(tmp);
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0);
|
|
break;
|
|
case 1:
|
|
gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */
|
|
if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3)
|
|
return 1;
|
|
tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_mov_i32(tmp2, tmp);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
for (i = 0; i < 7; i ++) {
|
|
tcg_gen_shli_i32(tmp2, tmp2, 4);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 1:
|
|
for (i = 0; i < 3; i ++) {
|
|
tcg_gen_shli_i32(tmp2, tmp2, 8);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 2:
|
|
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
break;
|
|
}
|
|
gen_set_nzcv(tmp);
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */
|
|
rd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = new_tmp();
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_helper_iwmmxt_msbb(tmp, cpu_M0);
|
|
break;
|
|
case 1:
|
|
gen_helper_iwmmxt_msbw(tmp, cpu_M0);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_msbl(tmp, cpu_M0);
|
|
break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */
|
|
case 0x906: case 0xb06: case 0xd06: case 0xf06:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */
|
|
case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsb_M0();
|
|
else
|
|
gen_op_iwmmxt_unpacklub_M0();
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsw_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackluw_M0();
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsl_M0();
|
|
else
|
|
gen_op_iwmmxt_unpacklul_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */
|
|
case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsb_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhub_M0();
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsw_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhuw_M0();
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsl_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhul_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */
|
|
case 0x214: case 0x614: case 0xa14: case 0xe14:
|
|
if (((insn >> 22) & 3) == 0)
|
|
return 1;
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = new_tmp();
|
|
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
switch ((insn >> 22) & 3) {
|
|
case 1:
|
|
gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 3:
|
|
gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
}
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */
|
|
case 0x014: case 0x414: case 0x814: case 0xc14:
|
|
if (((insn >> 22) & 3) == 0)
|
|
return 1;
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = new_tmp();
|
|
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
switch ((insn >> 22) & 3) {
|
|
case 1:
|
|
gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 3:
|
|
gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
}
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */
|
|
case 0x114: case 0x514: case 0x914: case 0xd14:
|
|
if (((insn >> 22) & 3) == 0)
|
|
return 1;
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = new_tmp();
|
|
if (gen_iwmmxt_shift(insn, 0xff, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
switch ((insn >> 22) & 3) {
|
|
case 1:
|
|
gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 2:
|
|
gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 3:
|
|
gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
}
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */
|
|
case 0x314: case 0x714: case 0xb14: case 0xf14:
|
|
if (((insn >> 22) & 3) == 0)
|
|
return 1;
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = new_tmp();
|
|
switch ((insn >> 22) & 3) {
|
|
case 1:
|
|
if (gen_iwmmxt_shift(insn, 0xf, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 2:
|
|
if (gen_iwmmxt_shift(insn, 0x1f, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
case 3:
|
|
if (gen_iwmmxt_shift(insn, 0x3f, tmp)) {
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
break;
|
|
}
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */
|
|
case 0x916: case 0xb16: case 0xd16: case 0xf16:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */
|
|
case 0x816: case 0xa16: case 0xc16: case 0xe16:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */
|
|
case 0x402: case 0x502: case 0x602: case 0x702:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = tcg_const_i32((insn >> 20) & 3);
|
|
iwmmxt_load_reg(cpu_V1, rd1);
|
|
gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp);
|
|
tcg_temp_free(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */
|
|
case 0x41a: case 0x51a: case 0x61a: case 0x71a:
|
|
case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
|
|
case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 20) & 0xf) {
|
|
case 0x0:
|
|
gen_op_iwmmxt_subnb_M0_wRn(rd1);
|
|
break;
|
|
case 0x1:
|
|
gen_op_iwmmxt_subub_M0_wRn(rd1);
|
|
break;
|
|
case 0x3:
|
|
gen_op_iwmmxt_subsb_M0_wRn(rd1);
|
|
break;
|
|
case 0x4:
|
|
gen_op_iwmmxt_subnw_M0_wRn(rd1);
|
|
break;
|
|
case 0x5:
|
|
gen_op_iwmmxt_subuw_M0_wRn(rd1);
|
|
break;
|
|
case 0x7:
|
|
gen_op_iwmmxt_subsw_M0_wRn(rd1);
|
|
break;
|
|
case 0x8:
|
|
gen_op_iwmmxt_subnl_M0_wRn(rd1);
|
|
break;
|
|
case 0x9:
|
|
gen_op_iwmmxt_subul_M0_wRn(rd1);
|
|
break;
|
|
case 0xb:
|
|
gen_op_iwmmxt_subsl_M0_wRn(rd1);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */
|
|
case 0x41e: case 0x51e: case 0x61e: case 0x71e:
|
|
case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
|
|
case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f));
|
|
gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp);
|
|
tcg_temp_free(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */
|
|
case 0x418: case 0x518: case 0x618: case 0x718:
|
|
case 0x818: case 0x918: case 0xa18: case 0xb18:
|
|
case 0xc18: case 0xd18: case 0xe18: case 0xf18:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 20) & 0xf) {
|
|
case 0x0:
|
|
gen_op_iwmmxt_addnb_M0_wRn(rd1);
|
|
break;
|
|
case 0x1:
|
|
gen_op_iwmmxt_addub_M0_wRn(rd1);
|
|
break;
|
|
case 0x3:
|
|
gen_op_iwmmxt_addsb_M0_wRn(rd1);
|
|
break;
|
|
case 0x4:
|
|
gen_op_iwmmxt_addnw_M0_wRn(rd1);
|
|
break;
|
|
case 0x5:
|
|
gen_op_iwmmxt_adduw_M0_wRn(rd1);
|
|
break;
|
|
case 0x7:
|
|
gen_op_iwmmxt_addsw_M0_wRn(rd1);
|
|
break;
|
|
case 0x8:
|
|
gen_op_iwmmxt_addnl_M0_wRn(rd1);
|
|
break;
|
|
case 0x9:
|
|
gen_op_iwmmxt_addul_M0_wRn(rd1);
|
|
break;
|
|
case 0xb:
|
|
gen_op_iwmmxt_addsl_M0_wRn(rd1);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */
|
|
case 0x408: case 0x508: case 0x608: case 0x708:
|
|
case 0x808: case 0x908: case 0xa08: case 0xb08:
|
|
case 0xc08: case 0xd08: case 0xe08: case 0xf08:
|
|
if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0)
|
|
return 1;
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsq_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packuq_M0_wRn(rd1);
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x201: case 0x203: case 0x205: case 0x207:
|
|
case 0x209: case 0x20b: case 0x20d: case 0x20f:
|
|
case 0x211: case 0x213: case 0x215: case 0x217:
|
|
case 0x219: case 0x21b: case 0x21d: case 0x21f:
|
|
wrd = (insn >> 5) & 0xf;
|
|
rd0 = (insn >> 12) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
if (rd0 == 0xf || rd1 == 0xf)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
tmp = load_reg(s, rd0);
|
|
tmp2 = load_reg(s, rd1);
|
|
switch ((insn >> 16) & 0xf) {
|
|
case 0x0: /* TMIA */
|
|
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
case 0x8: /* TMIAPH */
|
|
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */
|
|
if (insn & (1 << 16))
|
|
tcg_gen_shri_i32(tmp, tmp, 16);
|
|
if (insn & (1 << 17))
|
|
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
|
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
default:
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
return 1;
|
|
}
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble an XScale DSP instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int acc, rd0, rd1, rdhi, rdlo;
|
|
TCGv tmp, tmp2;
|
|
|
|
if ((insn & 0x0ff00f10) == 0x0e200010) {
|
|
/* Multiply with Internal Accumulate Format */
|
|
rd0 = (insn >> 12) & 0xf;
|
|
rd1 = insn & 0xf;
|
|
acc = (insn >> 5) & 7;
|
|
|
|
if (acc != 0)
|
|
return 1;
|
|
|
|
tmp = load_reg(s, rd0);
|
|
tmp2 = load_reg(s, rd1);
|
|
switch ((insn >> 16) & 0xf) {
|
|
case 0x0: /* MIA */
|
|
gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
case 0x8: /* MIAPH */
|
|
gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
case 0xc: /* MIABB */
|
|
case 0xd: /* MIABT */
|
|
case 0xe: /* MIATB */
|
|
case 0xf: /* MIATT */
|
|
if (insn & (1 << 16))
|
|
tcg_gen_shri_i32(tmp, tmp, 16);
|
|
if (insn & (1 << 17))
|
|
tcg_gen_shri_i32(tmp2, tmp2, 16);
|
|
gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
|
|
gen_op_iwmmxt_movq_wRn_M0(acc);
|
|
return 0;
|
|
}
|
|
|
|
if ((insn & 0x0fe00ff8) == 0x0c400000) {
|
|
/* Internal Accumulator Access Format */
|
|
rdhi = (insn >> 16) & 0xf;
|
|
rdlo = (insn >> 12) & 0xf;
|
|
acc = insn & 7;
|
|
|
|
if (acc != 0)
|
|
return 1;
|
|
|
|
if (insn & ARM_CP_RW_BIT) { /* MRA */
|
|
iwmmxt_load_reg(cpu_V0, acc);
|
|
tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0);
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
|
tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0);
|
|
tcg_gen_andi_i32(cpu_R[rdhi], cpu_R[rdhi], (1 << (40 - 32)) - 1);
|
|
} else { /* MAR */
|
|
tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]);
|
|
iwmmxt_store_reg(cpu_V0, acc);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Disassemble system coprocessor instruction. Return nonzero if
|
|
instruction is not defined. */
|
|
static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
TCGv tmp, tmp2;
|
|
uint32_t rd = (insn >> 12) & 0xf;
|
|
uint32_t cp = (insn >> 8) & 0xf;
|
|
if (IS_USER(s)) {
|
|
return 1;
|
|
}
|
|
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
if (!env->cp[cp].cp_read)
|
|
return 1;
|
|
gen_set_pc_im(s->pc);
|
|
tmp = new_tmp();
|
|
tmp2 = tcg_const_i32(insn);
|
|
gen_helper_get_cp(tmp, cpu_env, tmp2);
|
|
tcg_temp_free(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
if (!env->cp[cp].cp_write)
|
|
return 1;
|
|
gen_set_pc_im(s->pc);
|
|
tmp = load_reg(s, rd);
|
|
tmp2 = tcg_const_i32(insn);
|
|
gen_helper_set_cp(cpu_env, tmp2, tmp);
|
|
tcg_temp_free(tmp2);
|
|
dead_tmp(tmp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int cp15_user_ok(uint32_t insn)
|
|
{
|
|
int cpn = (insn >> 16) & 0xf;
|
|
int cpm = insn & 0xf;
|
|
int op = ((insn >> 5) & 7) | ((insn >> 18) & 0x38);
|
|
|
|
if (cpn == 13 && cpm == 0) {
|
|
/* TLS register. */
|
|
if (op == 2 || (op == 3 && (insn & ARM_CP_RW_BIT)))
|
|
return 1;
|
|
}
|
|
if (cpn == 7) {
|
|
/* ISB, DSB, DMB. */
|
|
if ((cpm == 5 && op == 4)
|
|
|| (cpm == 10 && (op == 4 || op == 5)))
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble system coprocessor (cp15) instruction. Return nonzero if
|
|
instruction is not defined. */
|
|
static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
uint32_t rd;
|
|
TCGv tmp, tmp2;
|
|
|
|
/* M profile cores use memory mapped registers instead of cp15. */
|
|
if (arm_feature(env, ARM_FEATURE_M))
|
|
return 1;
|
|
|
|
if ((insn & (1 << 25)) == 0) {
|
|
if (insn & (1 << 20)) {
|
|
/* mrrc */
|
|
return 1;
|
|
}
|
|
/* mcrr. Used for block cache operations, so implement as no-op. */
|
|
return 0;
|
|
}
|
|
if ((insn & (1 << 4)) == 0) {
|
|
/* cdp */
|
|
return 1;
|
|
}
|
|
if (IS_USER(s) && !cp15_user_ok(insn)) {
|
|
return 1;
|
|
}
|
|
if ((insn & 0x0fff0fff) == 0x0e070f90
|
|
|| (insn & 0x0fff0fff) == 0x0e070f58) {
|
|
/* Wait for interrupt. */
|
|
gen_set_pc_im(s->pc);
|
|
s->is_jmp = DISAS_WFI;
|
|
return 0;
|
|
}
|
|
rd = (insn >> 12) & 0xf;
|
|
tmp2 = tcg_const_i32(insn);
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
tmp = new_tmp();
|
|
gen_helper_get_cp15(tmp, cpu_env, tmp2);
|
|
/* If the destination register is r15 then sets condition codes. */
|
|
if (rd != 15)
|
|
store_reg(s, rd, tmp);
|
|
else
|
|
dead_tmp(tmp);
|
|
} else {
|
|
tmp = load_reg(s, rd);
|
|
gen_helper_set_cp15(cpu_env, tmp2, tmp);
|
|
dead_tmp(tmp);
|
|
/* Normally we would always end the TB here, but Linux
|
|
* arch/arm/mach-pxa/sleep.S expects two instructions following
|
|
* an MMU enable to execute from cache. Imitate this behaviour. */
|
|
if (!arm_feature(env, ARM_FEATURE_XSCALE) ||
|
|
(insn & 0x0fff0fff) != 0x0e010f10)
|
|
gen_lookup_tb(s);
|
|
}
|
|
tcg_temp_free_i32(tmp2);
|
|
return 0;
|
|
}
|
|
|
|
#define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n))
|
|
#define VFP_SREG(insn, bigbit, smallbit) \
|
|
((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1))
|
|
#define VFP_DREG(reg, insn, bigbit, smallbit) do { \
|
|
if (arm_feature(env, ARM_FEATURE_VFP3)) { \
|
|
reg = (((insn) >> (bigbit)) & 0x0f) \
|
|
| (((insn) >> ((smallbit) - 4)) & 0x10); \
|
|
} else { \
|
|
if (insn & (1 << (smallbit))) \
|
|
return 1; \
|
|
reg = ((insn) >> (bigbit)) & 0x0f; \
|
|
}} while (0)
|
|
|
|
#define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22)
|
|
#define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22)
|
|
#define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7)
|
|
#define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7)
|
|
#define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5)
|
|
#define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5)
|
|
|
|
/* Move between integer and VFP cores. */
|
|
static TCGv gen_vfp_mrs(void)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_mov_i32(tmp, cpu_F0s);
|
|
return tmp;
|
|
}
|
|
|
|
static void gen_vfp_msr(TCGv tmp)
|
|
{
|
|
tcg_gen_mov_i32(cpu_F0s, tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static inline int
|
|
vfp_enabled(CPUState * env)
|
|
{
|
|
return ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) != 0);
|
|
}
|
|
|
|
static void gen_neon_dup_u8(TCGv var, int shift)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
if (shift)
|
|
tcg_gen_shri_i32(var, var, shift);
|
|
tcg_gen_ext8u_i32(var, var);
|
|
tcg_gen_shli_i32(tmp, var, 8);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
tcg_gen_shli_i32(tmp, var, 16);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static void gen_neon_dup_low16(TCGv var)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_ext16u_i32(var, var);
|
|
tcg_gen_shli_i32(tmp, var, 16);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static void gen_neon_dup_high16(TCGv var)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_andi_i32(var, var, 0xffff0000);
|
|
tcg_gen_shri_i32(tmp, var, 16);
|
|
tcg_gen_or_i32(var, var, tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
/* Disassemble a VFP instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask;
|
|
int dp, veclen;
|
|
TCGv addr;
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
|
|
if (!arm_feature(env, ARM_FEATURE_VFP))
|
|
return 1;
|
|
|
|
if (!vfp_enabled(env)) {
|
|
/* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */
|
|
if ((insn & 0x0fe00fff) != 0x0ee00a10)
|
|
return 1;
|
|
rn = (insn >> 16) & 0xf;
|
|
if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC
|
|
&& rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0)
|
|
return 1;
|
|
}
|
|
dp = ((insn & 0xf00) == 0xb00);
|
|
switch ((insn >> 24) & 0xf) {
|
|
case 0xe:
|
|
if (insn & (1 << 4)) {
|
|
/* single register transfer */
|
|
rd = (insn >> 12) & 0xf;
|
|
if (dp) {
|
|
int size;
|
|
int pass;
|
|
|
|
VFP_DREG_N(rn, insn);
|
|
if (insn & 0xf)
|
|
return 1;
|
|
if (insn & 0x00c00060
|
|
&& !arm_feature(env, ARM_FEATURE_NEON))
|
|
return 1;
|
|
|
|
pass = (insn >> 21) & 1;
|
|
if (insn & (1 << 22)) {
|
|
size = 0;
|
|
offset = ((insn >> 5) & 3) * 8;
|
|
} else if (insn & (1 << 5)) {
|
|
size = 1;
|
|
offset = (insn & (1 << 6)) ? 16 : 0;
|
|
} else {
|
|
size = 2;
|
|
offset = 0;
|
|
}
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
tmp = neon_load_reg(rn, pass);
|
|
switch (size) {
|
|
case 0:
|
|
if (offset)
|
|
tcg_gen_shri_i32(tmp, tmp, offset);
|
|
if (insn & (1 << 23))
|
|
gen_uxtb(tmp);
|
|
else
|
|
gen_sxtb(tmp);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 23)) {
|
|
if (offset) {
|
|
tcg_gen_shri_i32(tmp, tmp, 16);
|
|
} else {
|
|
gen_uxth(tmp);
|
|
}
|
|
} else {
|
|
if (offset) {
|
|
tcg_gen_sari_i32(tmp, tmp, 16);
|
|
} else {
|
|
gen_sxth(tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* arm->vfp */
|
|
tmp = load_reg(s, rd);
|
|
if (insn & (1 << 23)) {
|
|
/* VDUP */
|
|
if (size == 0) {
|
|
gen_neon_dup_u8(tmp, 0);
|
|
} else if (size == 1) {
|
|
gen_neon_dup_low16(tmp);
|
|
}
|
|
for (n = 0; n <= pass * 2; n++) {
|
|
tmp2 = new_tmp();
|
|
tcg_gen_mov_i32(tmp2, tmp);
|
|
neon_store_reg(rn, n, tmp2);
|
|
}
|
|
neon_store_reg(rn, n, tmp);
|
|
} else {
|
|
/* VMOV */
|
|
switch (size) {
|
|
case 0:
|
|
tmp2 = neon_load_reg(rn, pass);
|
|
gen_bfi(tmp, tmp2, tmp, offset, 0xff);
|
|
dead_tmp(tmp2);
|
|
break;
|
|
case 1:
|
|
tmp2 = neon_load_reg(rn, pass);
|
|
gen_bfi(tmp, tmp2, tmp, offset, 0xffff);
|
|
dead_tmp(tmp2);
|
|
break;
|
|
case 2:
|
|
break;
|
|
}
|
|
neon_store_reg(rn, pass, tmp);
|
|
}
|
|
}
|
|
} else { /* !dp */
|
|
if ((insn & 0x6f) != 0x00)
|
|
return 1;
|
|
rn = VFP_SREG_N(insn);
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
if (insn & (1 << 21)) {
|
|
/* system register */
|
|
rn >>= 1;
|
|
|
|
switch (rn) {
|
|
case ARM_VFP_FPSID:
|
|
/* VFP2 allows access to FSID from userspace.
|
|
VFP3 restricts all id registers to privileged
|
|
accesses. */
|
|
if (IS_USER(s)
|
|
&& arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
tmp = load_cpu_field(vfp.xregs[rn]);
|
|
break;
|
|
case ARM_VFP_FPEXC:
|
|
if (IS_USER(s))
|
|
return 1;
|
|
tmp = load_cpu_field(vfp.xregs[rn]);
|
|
break;
|
|
case ARM_VFP_FPINST:
|
|
case ARM_VFP_FPINST2:
|
|
/* Not present in VFP3. */
|
|
if (IS_USER(s)
|
|
|| arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
tmp = load_cpu_field(vfp.xregs[rn]);
|
|
break;
|
|
case ARM_VFP_FPSCR:
|
|
if (rd == 15) {
|
|
tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
|
|
} else {
|
|
tmp = new_tmp();
|
|
gen_helper_vfp_get_fpscr(tmp, cpu_env);
|
|
}
|
|
break;
|
|
case ARM_VFP_MVFR0:
|
|
case ARM_VFP_MVFR1:
|
|
if (IS_USER(s)
|
|
|| !arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
tmp = load_cpu_field(vfp.xregs[rn]);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
} else {
|
|
gen_mov_F0_vreg(0, rn);
|
|
tmp = gen_vfp_mrs();
|
|
}
|
|
if (rd == 15) {
|
|
/* Set the 4 flag bits in the CPSR. */
|
|
gen_set_nzcv(tmp);
|
|
dead_tmp(tmp);
|
|
} else {
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
} else {
|
|
/* arm->vfp */
|
|
tmp = load_reg(s, rd);
|
|
if (insn & (1 << 21)) {
|
|
rn >>= 1;
|
|
/* system register */
|
|
switch (rn) {
|
|
case ARM_VFP_FPSID:
|
|
case ARM_VFP_MVFR0:
|
|
case ARM_VFP_MVFR1:
|
|
/* Writes are ignored. */
|
|
break;
|
|
case ARM_VFP_FPSCR:
|
|
gen_helper_vfp_set_fpscr(cpu_env, tmp);
|
|
dead_tmp(tmp);
|
|
gen_lookup_tb(s);
|
|
break;
|
|
case ARM_VFP_FPEXC:
|
|
if (IS_USER(s))
|
|
return 1;
|
|
/* TODO: VFP subarchitecture support.
|
|
* For now, keep the EN bit only */
|
|
tcg_gen_andi_i32(tmp, tmp, 1 << 30);
|
|
store_cpu_field(tmp, vfp.xregs[rn]);
|
|
gen_lookup_tb(s);
|
|
break;
|
|
case ARM_VFP_FPINST:
|
|
case ARM_VFP_FPINST2:
|
|
store_cpu_field(tmp, vfp.xregs[rn]);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
} else {
|
|
gen_vfp_msr(tmp);
|
|
gen_mov_vreg_F0(0, rn);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
/* data processing */
|
|
/* The opcode is in bits 23, 21, 20 and 6. */
|
|
op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1);
|
|
if (dp) {
|
|
if (op == 15) {
|
|
/* rn is opcode */
|
|
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
|
|
} else {
|
|
/* rn is register number */
|
|
VFP_DREG_N(rn, insn);
|
|
}
|
|
|
|
if (op == 15 && (rn == 15 || rn > 17)) {
|
|
/* Integer or single precision destination. */
|
|
rd = VFP_SREG_D(insn);
|
|
} else {
|
|
VFP_DREG_D(rd, insn);
|
|
}
|
|
|
|
if (op == 15 && (rn == 16 || rn == 17)) {
|
|
/* Integer source. */
|
|
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
|
|
} else {
|
|
VFP_DREG_M(rm, insn);
|
|
}
|
|
} else {
|
|
rn = VFP_SREG_N(insn);
|
|
if (op == 15 && rn == 15) {
|
|
/* Double precision destination. */
|
|
VFP_DREG_D(rd, insn);
|
|
} else {
|
|
rd = VFP_SREG_D(insn);
|
|
}
|
|
rm = VFP_SREG_M(insn);
|
|
}
|
|
|
|
veclen = env->vfp.vec_len;
|
|
if (op == 15 && rn > 3)
|
|
veclen = 0;
|
|
|
|
/* Shut up compiler warnings. */
|
|
delta_m = 0;
|
|
delta_d = 0;
|
|
bank_mask = 0;
|
|
|
|
if (veclen > 0) {
|
|
if (dp)
|
|
bank_mask = 0xc;
|
|
else
|
|
bank_mask = 0x18;
|
|
|
|
/* Figure out what type of vector operation this is. */
|
|
if ((rd & bank_mask) == 0) {
|
|
/* scalar */
|
|
veclen = 0;
|
|
} else {
|
|
if (dp)
|
|
delta_d = (env->vfp.vec_stride >> 1) + 1;
|
|
else
|
|
delta_d = env->vfp.vec_stride + 1;
|
|
|
|
if ((rm & bank_mask) == 0) {
|
|
/* mixed scalar/vector */
|
|
delta_m = 0;
|
|
} else {
|
|
/* vector */
|
|
delta_m = delta_d;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Load the initial operands. */
|
|
if (op == 15) {
|
|
switch (rn) {
|
|
case 16:
|
|
case 17:
|
|
/* Integer source */
|
|
gen_mov_F0_vreg(0, rm);
|
|
break;
|
|
case 8:
|
|
case 9:
|
|
/* Compare */
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
break;
|
|
case 10:
|
|
case 11:
|
|
/* Compare with zero */
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_vfp_F1_ld0(dp);
|
|
break;
|
|
case 20:
|
|
case 21:
|
|
case 22:
|
|
case 23:
|
|
case 28:
|
|
case 29:
|
|
case 30:
|
|
case 31:
|
|
/* Source and destination the same. */
|
|
gen_mov_F0_vreg(dp, rd);
|
|
break;
|
|
default:
|
|
/* One source operand. */
|
|
gen_mov_F0_vreg(dp, rm);
|
|
break;
|
|
}
|
|
} else {
|
|
/* Two source operands. */
|
|
gen_mov_F0_vreg(dp, rn);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
}
|
|
|
|
for (;;) {
|
|
/* Perform the calculation. */
|
|
switch (op) {
|
|
case 0: /* mac: fd + (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 1: /* nmac: fd - (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_vfp_neg(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 2: /* msc: -fd + (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_sub(dp);
|
|
break;
|
|
case 3: /* nmsc: -fd - (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_vfp_neg(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_sub(dp);
|
|
break;
|
|
case 4: /* mul: fn * fm */
|
|
gen_vfp_mul(dp);
|
|
break;
|
|
case 5: /* nmul: -(fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_vfp_neg(dp);
|
|
break;
|
|
case 6: /* add: fn + fm */
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 7: /* sub: fn - fm */
|
|
gen_vfp_sub(dp);
|
|
break;
|
|
case 8: /* div: fn / fm */
|
|
gen_vfp_div(dp);
|
|
break;
|
|
case 14: /* fconst */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
|
|
n = (insn << 12) & 0x80000000;
|
|
i = ((insn >> 12) & 0x70) | (insn & 0xf);
|
|
if (dp) {
|
|
if (i & 0x40)
|
|
i |= 0x3f80;
|
|
else
|
|
i |= 0x4000;
|
|
n |= i << 16;
|
|
tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32);
|
|
} else {
|
|
if (i & 0x40)
|
|
i |= 0x780;
|
|
else
|
|
i |= 0x800;
|
|
n |= i << 19;
|
|
tcg_gen_movi_i32(cpu_F0s, n);
|
|
}
|
|
break;
|
|
case 15: /* extension space */
|
|
switch (rn) {
|
|
case 0: /* cpy */
|
|
/* no-op */
|
|
break;
|
|
case 1: /* abs */
|
|
gen_vfp_abs(dp);
|
|
break;
|
|
case 2: /* neg */
|
|
gen_vfp_neg(dp);
|
|
break;
|
|
case 3: /* sqrt */
|
|
gen_vfp_sqrt(dp);
|
|
break;
|
|
case 4: /* vcvtb.f32.f16 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp = gen_vfp_mrs();
|
|
tcg_gen_ext16u_i32(tmp, tmp);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 5: /* vcvtt.f32.f16 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp = gen_vfp_mrs();
|
|
tcg_gen_shri_i32(tmp, tmp, 16);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 6: /* vcvtb.f16.f32 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp = new_tmp();
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env);
|
|
gen_mov_F0_vreg(0, rd);
|
|
tmp2 = gen_vfp_mrs();
|
|
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
gen_vfp_msr(tmp);
|
|
break;
|
|
case 7: /* vcvtt.f16.f32 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp = new_tmp();
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env);
|
|
tcg_gen_shli_i32(tmp, tmp, 16);
|
|
gen_mov_F0_vreg(0, rd);
|
|
tmp2 = gen_vfp_mrs();
|
|
tcg_gen_ext16u_i32(tmp2, tmp2);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
gen_vfp_msr(tmp);
|
|
break;
|
|
case 8: /* cmp */
|
|
gen_vfp_cmp(dp);
|
|
break;
|
|
case 9: /* cmpe */
|
|
gen_vfp_cmpe(dp);
|
|
break;
|
|
case 10: /* cmpz */
|
|
gen_vfp_cmp(dp);
|
|
break;
|
|
case 11: /* cmpez */
|
|
gen_vfp_F1_ld0(dp);
|
|
gen_vfp_cmpe(dp);
|
|
break;
|
|
case 15: /* single<->double conversion */
|
|
if (dp)
|
|
gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env);
|
|
else
|
|
gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env);
|
|
break;
|
|
case 16: /* fuito */
|
|
gen_vfp_uito(dp);
|
|
break;
|
|
case 17: /* fsito */
|
|
gen_vfp_sito(dp);
|
|
break;
|
|
case 20: /* fshto */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_shto(dp, 16 - rm);
|
|
break;
|
|
case 21: /* fslto */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_slto(dp, 32 - rm);
|
|
break;
|
|
case 22: /* fuhto */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_uhto(dp, 16 - rm);
|
|
break;
|
|
case 23: /* fulto */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_ulto(dp, 32 - rm);
|
|
break;
|
|
case 24: /* ftoui */
|
|
gen_vfp_toui(dp);
|
|
break;
|
|
case 25: /* ftouiz */
|
|
gen_vfp_touiz(dp);
|
|
break;
|
|
case 26: /* ftosi */
|
|
gen_vfp_tosi(dp);
|
|
break;
|
|
case 27: /* ftosiz */
|
|
gen_vfp_tosiz(dp);
|
|
break;
|
|
case 28: /* ftosh */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_tosh(dp, 16 - rm);
|
|
break;
|
|
case 29: /* ftosl */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_tosl(dp, 32 - rm);
|
|
break;
|
|
case 30: /* ftouh */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_touh(dp, 16 - rm);
|
|
break;
|
|
case 31: /* ftoul */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP3))
|
|
return 1;
|
|
gen_vfp_toul(dp, 32 - rm);
|
|
break;
|
|
default: /* undefined */
|
|
printf ("rn:%d\n", rn);
|
|
return 1;
|
|
}
|
|
break;
|
|
default: /* undefined */
|
|
printf ("op:%d\n", op);
|
|
return 1;
|
|
}
|
|
|
|
/* Write back the result. */
|
|
if (op == 15 && (rn >= 8 && rn <= 11))
|
|
; /* Comparison, do nothing. */
|
|
else if (op == 15 && rn > 17)
|
|
/* Integer result. */
|
|
gen_mov_vreg_F0(0, rd);
|
|
else if (op == 15 && rn == 15)
|
|
/* conversion */
|
|
gen_mov_vreg_F0(!dp, rd);
|
|
else
|
|
gen_mov_vreg_F0(dp, rd);
|
|
|
|
/* break out of the loop if we have finished */
|
|
if (veclen == 0)
|
|
break;
|
|
|
|
if (op == 15 && delta_m == 0) {
|
|
/* single source one-many */
|
|
while (veclen--) {
|
|
rd = ((rd + delta_d) & (bank_mask - 1))
|
|
| (rd & bank_mask);
|
|
gen_mov_vreg_F0(dp, rd);
|
|
}
|
|
break;
|
|
}
|
|
/* Setup the next operands. */
|
|
veclen--;
|
|
rd = ((rd + delta_d) & (bank_mask - 1))
|
|
| (rd & bank_mask);
|
|
|
|
if (op == 15) {
|
|
/* One source operand. */
|
|
rm = ((rm + delta_m) & (bank_mask - 1))
|
|
| (rm & bank_mask);
|
|
gen_mov_F0_vreg(dp, rm);
|
|
} else {
|
|
/* Two source operands. */
|
|
rn = ((rn + delta_d) & (bank_mask - 1))
|
|
| (rn & bank_mask);
|
|
gen_mov_F0_vreg(dp, rn);
|
|
if (delta_m) {
|
|
rm = ((rm + delta_m) & (bank_mask - 1))
|
|
| (rm & bank_mask);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 0xc:
|
|
case 0xd:
|
|
if (dp && (insn & 0x03e00000) == 0x00400000) {
|
|
/* two-register transfer */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
if (dp) {
|
|
VFP_DREG_M(rm, insn);
|
|
} else {
|
|
rm = VFP_SREG_M(insn);
|
|
}
|
|
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
if (dp) {
|
|
gen_mov_F0_vreg(0, rm * 2);
|
|
tmp = gen_vfp_mrs();
|
|
store_reg(s, rd, tmp);
|
|
gen_mov_F0_vreg(0, rm * 2 + 1);
|
|
tmp = gen_vfp_mrs();
|
|
store_reg(s, rn, tmp);
|
|
} else {
|
|
gen_mov_F0_vreg(0, rm);
|
|
tmp = gen_vfp_mrs();
|
|
store_reg(s, rn, tmp);
|
|
gen_mov_F0_vreg(0, rm + 1);
|
|
tmp = gen_vfp_mrs();
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
} else {
|
|
/* arm->vfp */
|
|
if (dp) {
|
|
tmp = load_reg(s, rd);
|
|
gen_vfp_msr(tmp);
|
|
gen_mov_vreg_F0(0, rm * 2);
|
|
tmp = load_reg(s, rn);
|
|
gen_vfp_msr(tmp);
|
|
gen_mov_vreg_F0(0, rm * 2 + 1);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
gen_vfp_msr(tmp);
|
|
gen_mov_vreg_F0(0, rm);
|
|
tmp = load_reg(s, rd);
|
|
gen_vfp_msr(tmp);
|
|
gen_mov_vreg_F0(0, rm + 1);
|
|
}
|
|
}
|
|
} else {
|
|
/* Load/store */
|
|
rn = (insn >> 16) & 0xf;
|
|
if (dp)
|
|
VFP_DREG_D(rd, insn);
|
|
else
|
|
rd = VFP_SREG_D(insn);
|
|
if (s->thumb && rn == 15) {
|
|
addr = new_tmp();
|
|
tcg_gen_movi_i32(addr, s->pc & ~2);
|
|
} else {
|
|
addr = load_reg(s, rn);
|
|
}
|
|
if ((insn & 0x01200000) == 0x01000000) {
|
|
/* Single load/store */
|
|
offset = (insn & 0xff) << 2;
|
|
if ((insn & (1 << 23)) == 0)
|
|
offset = -offset;
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
if (insn & (1 << 20)) {
|
|
gen_vfp_ld(s, dp, addr);
|
|
gen_mov_vreg_F0(dp, rd);
|
|
} else {
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_vfp_st(s, dp, addr);
|
|
}
|
|
dead_tmp(addr);
|
|
} else {
|
|
/* load/store multiple */
|
|
if (dp)
|
|
n = (insn >> 1) & 0x7f;
|
|
else
|
|
n = insn & 0xff;
|
|
|
|
if (insn & (1 << 24)) /* pre-decrement */
|
|
tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2));
|
|
|
|
if (dp)
|
|
offset = 8;
|
|
else
|
|
offset = 4;
|
|
for (i = 0; i < n; i++) {
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* load */
|
|
gen_vfp_ld(s, dp, addr);
|
|
gen_mov_vreg_F0(dp, rd + i);
|
|
} else {
|
|
/* store */
|
|
gen_mov_F0_vreg(dp, rd + i);
|
|
gen_vfp_st(s, dp, addr);
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* writeback */
|
|
if (insn & (1 << 24))
|
|
offset = -offset * n;
|
|
else if (dp && (insn & 1))
|
|
offset = 4;
|
|
else
|
|
offset = 0;
|
|
|
|
if (offset != 0)
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
/* Should never happen. */
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest)
|
|
{
|
|
TranslationBlock *tb;
|
|
|
|
tb = s->tb;
|
|
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
|
tcg_gen_goto_tb(n);
|
|
gen_set_pc_im(dest);
|
|
tcg_gen_exit_tb((long)tb + n);
|
|
} else {
|
|
gen_set_pc_im(dest);
|
|
tcg_gen_exit_tb(0);
|
|
}
|
|
}
|
|
|
|
static inline void gen_jmp (DisasContext *s, uint32_t dest)
|
|
{
|
|
if (unlikely(s->singlestep_enabled)) {
|
|
/* An indirect jump so that we still trigger the debug exception. */
|
|
if (s->thumb)
|
|
dest |= 1;
|
|
gen_bx_im(s, dest);
|
|
} else {
|
|
gen_goto_tb(s, 0, dest);
|
|
s->is_jmp = DISAS_TB_JUMP;
|
|
}
|
|
}
|
|
|
|
static inline void gen_mulxy(TCGv t0, TCGv t1, int x, int y)
|
|
{
|
|
if (x)
|
|
tcg_gen_sari_i32(t0, t0, 16);
|
|
else
|
|
gen_sxth(t0);
|
|
if (y)
|
|
tcg_gen_sari_i32(t1, t1, 16);
|
|
else
|
|
gen_sxth(t1);
|
|
tcg_gen_mul_i32(t0, t0, t1);
|
|
}
|
|
|
|
/* Return the mask of PSR bits set by a MSR instruction. */
|
|
static uint32_t msr_mask(CPUState *env, DisasContext *s, int flags, int spsr) {
|
|
uint32_t mask;
|
|
|
|
mask = 0;
|
|
if (flags & (1 << 0))
|
|
mask |= 0xff;
|
|
if (flags & (1 << 1))
|
|
mask |= 0xff00;
|
|
if (flags & (1 << 2))
|
|
mask |= 0xff0000;
|
|
if (flags & (1 << 3))
|
|
mask |= 0xff000000;
|
|
|
|
/* Mask out undefined bits. */
|
|
mask &= ~CPSR_RESERVED;
|
|
if (!arm_feature(env, ARM_FEATURE_V6))
|
|
mask &= ~(CPSR_E | CPSR_GE);
|
|
if (!arm_feature(env, ARM_FEATURE_THUMB2))
|
|
mask &= ~CPSR_IT;
|
|
/* Mask out execution state bits. */
|
|
if (!spsr)
|
|
mask &= ~CPSR_EXEC;
|
|
/* Mask out privileged bits. */
|
|
if (IS_USER(s))
|
|
mask &= CPSR_USER;
|
|
return mask;
|
|
}
|
|
|
|
/* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */
|
|
static int gen_set_psr(DisasContext *s, uint32_t mask, int spsr, TCGv t0)
|
|
{
|
|
TCGv tmp;
|
|
if (spsr) {
|
|
/* ??? This is also undefined in system mode. */
|
|
if (IS_USER(s))
|
|
return 1;
|
|
|
|
tmp = load_cpu_field(spsr);
|
|
tcg_gen_andi_i32(tmp, tmp, ~mask);
|
|
tcg_gen_andi_i32(t0, t0, mask);
|
|
tcg_gen_or_i32(tmp, tmp, t0);
|
|
store_cpu_field(tmp, spsr);
|
|
} else {
|
|
gen_set_cpsr(t0, mask);
|
|
}
|
|
dead_tmp(t0);
|
|
gen_lookup_tb(s);
|
|
return 0;
|
|
}
|
|
|
|
/* Returns nonzero if access to the PSR is not permitted. */
|
|
static int gen_set_psr_im(DisasContext *s, uint32_t mask, int spsr, uint32_t val)
|
|
{
|
|
TCGv tmp;
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
return gen_set_psr(s, mask, spsr, tmp);
|
|
}
|
|
|
|
/* Generate an old-style exception return. Marks pc as dead. */
|
|
static void gen_exception_return(DisasContext *s, TCGv pc)
|
|
{
|
|
TCGv tmp;
|
|
store_reg(s, 15, pc);
|
|
tmp = load_cpu_field(spsr);
|
|
gen_set_cpsr(tmp, 0xffffffff);
|
|
dead_tmp(tmp);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
|
|
/* Generate a v6 exception return. Marks both values as dead. */
|
|
static void gen_rfe(DisasContext *s, TCGv pc, TCGv cpsr)
|
|
{
|
|
gen_set_cpsr(cpsr, 0xffffffff);
|
|
dead_tmp(cpsr);
|
|
store_reg(s, 15, pc);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
|
|
static inline void
|
|
gen_set_condexec (DisasContext *s)
|
|
{
|
|
if (s->condexec_mask) {
|
|
uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1);
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
store_cpu_field(tmp, condexec_bits);
|
|
}
|
|
}
|
|
|
|
static void gen_nop_hint(DisasContext *s, int val)
|
|
{
|
|
switch (val) {
|
|
case 3: /* wfi */
|
|
gen_set_pc_im(s->pc);
|
|
s->is_jmp = DISAS_WFI;
|
|
break;
|
|
case 2: /* wfe */
|
|
case 4: /* sev */
|
|
/* TODO: Implement SEV and WFE. May help SMP performance. */
|
|
default: /* nop */
|
|
break;
|
|
}
|
|
}
|
|
|
|
#define CPU_V001 cpu_V0, cpu_V0, cpu_V1
|
|
|
|
static inline int gen_neon_add(int size, TCGv t0, TCGv t1)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_add_u8(t0, t0, t1); break;
|
|
case 1: gen_helper_neon_add_u16(t0, t0, t1); break;
|
|
case 2: tcg_gen_add_i32(t0, t0, t1); break;
|
|
default: return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void gen_neon_rsb(int size, TCGv t0, TCGv t1)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_sub_u8(t0, t1, t0); break;
|
|
case 1: gen_helper_neon_sub_u16(t0, t1, t0); break;
|
|
case 2: tcg_gen_sub_i32(t0, t1, t0); break;
|
|
default: return;
|
|
}
|
|
}
|
|
|
|
/* 32-bit pairwise ops end up the same as the elementwise versions. */
|
|
#define gen_helper_neon_pmax_s32 gen_helper_neon_max_s32
|
|
#define gen_helper_neon_pmax_u32 gen_helper_neon_max_u32
|
|
#define gen_helper_neon_pmin_s32 gen_helper_neon_min_s32
|
|
#define gen_helper_neon_pmin_u32 gen_helper_neon_min_u32
|
|
|
|
/* FIXME: This is wrong. They set the wrong overflow bit. */
|
|
#define gen_helper_neon_qadd_s32(a, e, b, c) gen_helper_add_saturate(a, b, c)
|
|
#define gen_helper_neon_qadd_u32(a, e, b, c) gen_helper_add_usaturate(a, b, c)
|
|
#define gen_helper_neon_qsub_s32(a, e, b, c) gen_helper_sub_saturate(a, b, c)
|
|
#define gen_helper_neon_qsub_u32(a, e, b, c) gen_helper_sub_usaturate(a, b, c)
|
|
|
|
#define GEN_NEON_INTEGER_OP_ENV(name) do { \
|
|
switch ((size << 1) | u) { \
|
|
case 0: \
|
|
gen_helper_neon_##name##_s8(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
case 1: \
|
|
gen_helper_neon_##name##_u8(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
case 2: \
|
|
gen_helper_neon_##name##_s16(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
case 3: \
|
|
gen_helper_neon_##name##_u16(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
case 4: \
|
|
gen_helper_neon_##name##_s32(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
case 5: \
|
|
gen_helper_neon_##name##_u32(tmp, cpu_env, tmp, tmp2); \
|
|
break; \
|
|
default: return 1; \
|
|
}} while (0)
|
|
|
|
#define GEN_NEON_INTEGER_OP(name) do { \
|
|
switch ((size << 1) | u) { \
|
|
case 0: \
|
|
gen_helper_neon_##name##_s8(tmp, tmp, tmp2); \
|
|
break; \
|
|
case 1: \
|
|
gen_helper_neon_##name##_u8(tmp, tmp, tmp2); \
|
|
break; \
|
|
case 2: \
|
|
gen_helper_neon_##name##_s16(tmp, tmp, tmp2); \
|
|
break; \
|
|
case 3: \
|
|
gen_helper_neon_##name##_u16(tmp, tmp, tmp2); \
|
|
break; \
|
|
case 4: \
|
|
gen_helper_neon_##name##_s32(tmp, tmp, tmp2); \
|
|
break; \
|
|
case 5: \
|
|
gen_helper_neon_##name##_u32(tmp, tmp, tmp2); \
|
|
break; \
|
|
default: return 1; \
|
|
}} while (0)
|
|
|
|
static TCGv neon_load_scratch(int scratch)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch]));
|
|
return tmp;
|
|
}
|
|
|
|
static void neon_store_scratch(int scratch, TCGv var)
|
|
{
|
|
tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch]));
|
|
dead_tmp(var);
|
|
}
|
|
|
|
static inline TCGv neon_get_scalar(int size, int reg)
|
|
{
|
|
TCGv tmp;
|
|
if (size == 1) {
|
|
tmp = neon_load_reg(reg >> 1, reg & 1);
|
|
} else {
|
|
tmp = neon_load_reg(reg >> 2, (reg >> 1) & 1);
|
|
if (reg & 1) {
|
|
gen_neon_dup_low16(tmp);
|
|
} else {
|
|
gen_neon_dup_high16(tmp);
|
|
}
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
static void gen_neon_unzip_u8(TCGv t0, TCGv t1)
|
|
{
|
|
TCGv rd, rm, tmp;
|
|
|
|
rd = new_tmp();
|
|
rm = new_tmp();
|
|
tmp = new_tmp();
|
|
|
|
tcg_gen_andi_i32(rd, t0, 0xff);
|
|
tcg_gen_shri_i32(tmp, t0, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
tcg_gen_shli_i32(tmp, t1, 16);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
tcg_gen_shli_i32(tmp, t1, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff000000);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
|
|
tcg_gen_shri_i32(rm, t0, 8);
|
|
tcg_gen_andi_i32(rm, rm, 0xff);
|
|
tcg_gen_shri_i32(tmp, t0, 16);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
|
tcg_gen_or_i32(rm, rm, tmp);
|
|
tcg_gen_shli_i32(tmp, t1, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
|
tcg_gen_or_i32(rm, rm, tmp);
|
|
tcg_gen_andi_i32(tmp, t1, 0xff000000);
|
|
tcg_gen_or_i32(t1, rm, tmp);
|
|
tcg_gen_mov_i32(t0, rd);
|
|
|
|
dead_tmp(tmp);
|
|
dead_tmp(rm);
|
|
dead_tmp(rd);
|
|
}
|
|
|
|
static void gen_neon_zip_u8(TCGv t0, TCGv t1)
|
|
{
|
|
TCGv rd, rm, tmp;
|
|
|
|
rd = new_tmp();
|
|
rm = new_tmp();
|
|
tmp = new_tmp();
|
|
|
|
tcg_gen_andi_i32(rd, t0, 0xff);
|
|
tcg_gen_shli_i32(tmp, t1, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
tcg_gen_shli_i32(tmp, t0, 16);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
tcg_gen_shli_i32(tmp, t1, 24);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff000000);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
|
|
tcg_gen_andi_i32(rm, t1, 0xff000000);
|
|
tcg_gen_shri_i32(tmp, t0, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff0000);
|
|
tcg_gen_or_i32(rm, rm, tmp);
|
|
tcg_gen_shri_i32(tmp, t1, 8);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff00);
|
|
tcg_gen_or_i32(rm, rm, tmp);
|
|
tcg_gen_shri_i32(tmp, t0, 16);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xff);
|
|
tcg_gen_or_i32(t1, rm, tmp);
|
|
tcg_gen_mov_i32(t0, rd);
|
|
|
|
dead_tmp(tmp);
|
|
dead_tmp(rm);
|
|
dead_tmp(rd);
|
|
}
|
|
|
|
static void gen_neon_zip_u16(TCGv t0, TCGv t1)
|
|
{
|
|
TCGv tmp, tmp2;
|
|
|
|
tmp = new_tmp();
|
|
tmp2 = new_tmp();
|
|
|
|
tcg_gen_andi_i32(tmp, t0, 0xffff);
|
|
tcg_gen_shli_i32(tmp2, t1, 16);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
tcg_gen_andi_i32(t1, t1, 0xffff0000);
|
|
tcg_gen_shri_i32(tmp2, t0, 16);
|
|
tcg_gen_or_i32(t1, t1, tmp2);
|
|
tcg_gen_mov_i32(t0, tmp);
|
|
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static void gen_neon_unzip(int reg, int q, int tmp, int size)
|
|
{
|
|
int n;
|
|
TCGv t0, t1;
|
|
|
|
for (n = 0; n < q + 1; n += 2) {
|
|
t0 = neon_load_reg(reg, n);
|
|
t1 = neon_load_reg(reg, n + 1);
|
|
switch (size) {
|
|
case 0: gen_neon_unzip_u8(t0, t1); break;
|
|
case 1: gen_neon_zip_u16(t0, t1); break; /* zip and unzip are the same. */
|
|
case 2: /* no-op */; break;
|
|
default: abort();
|
|
}
|
|
neon_store_scratch(tmp + n, t0);
|
|
neon_store_scratch(tmp + n + 1, t1);
|
|
}
|
|
}
|
|
|
|
static void gen_neon_trn_u8(TCGv t0, TCGv t1)
|
|
{
|
|
TCGv rd, tmp;
|
|
|
|
rd = new_tmp();
|
|
tmp = new_tmp();
|
|
|
|
tcg_gen_shli_i32(rd, t0, 8);
|
|
tcg_gen_andi_i32(rd, rd, 0xff00ff00);
|
|
tcg_gen_andi_i32(tmp, t1, 0x00ff00ff);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
|
|
tcg_gen_shri_i32(t1, t1, 8);
|
|
tcg_gen_andi_i32(t1, t1, 0x00ff00ff);
|
|
tcg_gen_andi_i32(tmp, t0, 0xff00ff00);
|
|
tcg_gen_or_i32(t1, t1, tmp);
|
|
tcg_gen_mov_i32(t0, rd);
|
|
|
|
dead_tmp(tmp);
|
|
dead_tmp(rd);
|
|
}
|
|
|
|
static void gen_neon_trn_u16(TCGv t0, TCGv t1)
|
|
{
|
|
TCGv rd, tmp;
|
|
|
|
rd = new_tmp();
|
|
tmp = new_tmp();
|
|
|
|
tcg_gen_shli_i32(rd, t0, 16);
|
|
tcg_gen_andi_i32(tmp, t1, 0xffff);
|
|
tcg_gen_or_i32(rd, rd, tmp);
|
|
tcg_gen_shri_i32(t1, t1, 16);
|
|
tcg_gen_andi_i32(tmp, t0, 0xffff0000);
|
|
tcg_gen_or_i32(t1, t1, tmp);
|
|
tcg_gen_mov_i32(t0, rd);
|
|
|
|
dead_tmp(tmp);
|
|
dead_tmp(rd);
|
|
}
|
|
|
|
|
|
static struct {
|
|
int nregs;
|
|
int interleave;
|
|
int spacing;
|
|
} neon_ls_element_type[11] = {
|
|
{4, 4, 1},
|
|
{4, 4, 2},
|
|
{4, 1, 1},
|
|
{4, 2, 1},
|
|
{3, 3, 1},
|
|
{3, 3, 2},
|
|
{3, 1, 1},
|
|
{1, 1, 1},
|
|
{2, 2, 1},
|
|
{2, 2, 2},
|
|
{2, 1, 1}
|
|
};
|
|
|
|
/* Translate a NEON load/store element instruction. Return nonzero if the
|
|
instruction is invalid. */
|
|
static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int rd, rn, rm;
|
|
int op;
|
|
int nregs;
|
|
int interleave;
|
|
int spacing;
|
|
int stride;
|
|
int size;
|
|
int reg;
|
|
int pass;
|
|
int load;
|
|
int shift;
|
|
int n;
|
|
TCGv addr;
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
TCGv_i64 tmp64;
|
|
|
|
if (!vfp_enabled(env))
|
|
return 1;
|
|
VFP_DREG_D(rd, insn);
|
|
rn = (insn >> 16) & 0xf;
|
|
rm = insn & 0xf;
|
|
load = (insn & (1 << 21)) != 0;
|
|
addr = new_tmp();
|
|
if ((insn & (1 << 23)) == 0) {
|
|
/* Load store all elements. */
|
|
op = (insn >> 8) & 0xf;
|
|
size = (insn >> 6) & 3;
|
|
if (op > 10)
|
|
return 1;
|
|
nregs = neon_ls_element_type[op].nregs;
|
|
interleave = neon_ls_element_type[op].interleave;
|
|
spacing = neon_ls_element_type[op].spacing;
|
|
if (size == 3 && (interleave | spacing) != 1)
|
|
return 1;
|
|
load_reg_var(s, addr, rn);
|
|
stride = (1 << size) * interleave;
|
|
for (reg = 0; reg < nregs; reg++) {
|
|
if (interleave > 2 || (interleave == 2 && nregs == 2)) {
|
|
load_reg_var(s, addr, rn);
|
|
tcg_gen_addi_i32(addr, addr, (1 << size) * reg);
|
|
} else if (interleave == 2 && nregs == 4 && reg == 2) {
|
|
load_reg_var(s, addr, rn);
|
|
tcg_gen_addi_i32(addr, addr, 1 << size);
|
|
}
|
|
if (size == 3) {
|
|
if (load) {
|
|
tmp64 = gen_ld64(addr, IS_USER(s));
|
|
neon_store_reg64(tmp64, rd);
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
tmp64 = tcg_temp_new_i64();
|
|
neon_load_reg64(tmp64, rd);
|
|
gen_st64(tmp64, addr, IS_USER(s));
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
} else {
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (size == 2) {
|
|
if (load) {
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
neon_store_reg(rd, pass, tmp);
|
|
} else {
|
|
tmp = neon_load_reg(rd, pass);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
} else if (size == 1) {
|
|
if (load) {
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
tmp2 = gen_ld16u(addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
gen_bfi(tmp, tmp, tmp2, 16, 0xffff);
|
|
dead_tmp(tmp2);
|
|
neon_store_reg(rd, pass, tmp);
|
|
} else {
|
|
tmp = neon_load_reg(rd, pass);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_shri_i32(tmp2, tmp, 16);
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
gen_st16(tmp2, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
}
|
|
} else /* size == 0 */ {
|
|
if (load) {
|
|
TCGV_UNUSED(tmp2);
|
|
for (n = 0; n < 4; n++) {
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
if (n == 0) {
|
|
tmp2 = tmp;
|
|
} else {
|
|
gen_bfi(tmp2, tmp2, tmp, n * 8, 0xff);
|
|
dead_tmp(tmp);
|
|
}
|
|
}
|
|
neon_store_reg(rd, pass, tmp2);
|
|
} else {
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
for (n = 0; n < 4; n++) {
|
|
tmp = new_tmp();
|
|
if (n == 0) {
|
|
tcg_gen_mov_i32(tmp, tmp2);
|
|
} else {
|
|
tcg_gen_shri_i32(tmp, tmp2, n * 8);
|
|
}
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, stride);
|
|
}
|
|
dead_tmp(tmp2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rd += spacing;
|
|
}
|
|
stride = nregs * 8;
|
|
} else {
|
|
size = (insn >> 10) & 3;
|
|
if (size == 3) {
|
|
/* Load single element to all lanes. */
|
|
if (!load)
|
|
return 1;
|
|
size = (insn >> 6) & 3;
|
|
nregs = ((insn >> 8) & 3) + 1;
|
|
stride = (insn & (1 << 5)) ? 2 : 1;
|
|
load_reg_var(s, addr, rn);
|
|
for (reg = 0; reg < nregs; reg++) {
|
|
switch (size) {
|
|
case 0:
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
gen_neon_dup_u8(tmp, 0);
|
|
break;
|
|
case 1:
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
gen_neon_dup_low16(tmp);
|
|
break;
|
|
case 2:
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
default: /* Avoid compiler warnings. */
|
|
abort();
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, 1 << size);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_mov_i32(tmp2, tmp);
|
|
neon_store_reg(rd, 0, tmp2);
|
|
neon_store_reg(rd, 1, tmp);
|
|
rd += stride;
|
|
}
|
|
stride = (1 << size) * nregs;
|
|
} else {
|
|
/* Single element. */
|
|
pass = (insn >> 7) & 1;
|
|
switch (size) {
|
|
case 0:
|
|
shift = ((insn >> 5) & 3) * 8;
|
|
stride = 1;
|
|
break;
|
|
case 1:
|
|
shift = ((insn >> 6) & 1) * 16;
|
|
stride = (insn & (1 << 5)) ? 2 : 1;
|
|
break;
|
|
case 2:
|
|
shift = 0;
|
|
stride = (insn & (1 << 6)) ? 2 : 1;
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
nregs = ((insn >> 8) & 3) + 1;
|
|
load_reg_var(s, addr, rn);
|
|
for (reg = 0; reg < nregs; reg++) {
|
|
if (load) {
|
|
switch (size) {
|
|
case 0:
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
break;
|
|
case 1:
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
break;
|
|
case 2:
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
break;
|
|
default: /* Avoid compiler warnings. */
|
|
abort();
|
|
}
|
|
if (size != 2) {
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
gen_bfi(tmp, tmp2, tmp, shift, size ? 0xffff : 0xff);
|
|
dead_tmp(tmp2);
|
|
}
|
|
neon_store_reg(rd, pass, tmp);
|
|
} else { /* Store */
|
|
tmp = neon_load_reg(rd, pass);
|
|
if (shift)
|
|
tcg_gen_shri_i32(tmp, tmp, shift);
|
|
switch (size) {
|
|
case 0:
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 1:
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 2:
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
break;
|
|
}
|
|
}
|
|
rd += stride;
|
|
tcg_gen_addi_i32(addr, addr, 1 << size);
|
|
}
|
|
stride = nregs * (1 << size);
|
|
}
|
|
}
|
|
dead_tmp(addr);
|
|
if (rm != 15) {
|
|
TCGv base;
|
|
|
|
base = load_reg(s, rn);
|
|
if (rm == 13) {
|
|
tcg_gen_addi_i32(base, base, stride);
|
|
} else {
|
|
TCGv index;
|
|
index = load_reg(s, rm);
|
|
tcg_gen_add_i32(base, base, index);
|
|
dead_tmp(index);
|
|
}
|
|
store_reg(s, rn, base);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Bitwise select. dest = c ? t : f. Clobbers T and F. */
|
|
static void gen_neon_bsl(TCGv dest, TCGv t, TCGv f, TCGv c)
|
|
{
|
|
tcg_gen_and_i32(t, t, c);
|
|
tcg_gen_andc_i32(f, f, c);
|
|
tcg_gen_or_i32(dest, t, f);
|
|
}
|
|
|
|
static inline void gen_neon_narrow(int size, TCGv dest, TCGv_i64 src)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_narrow_u8(dest, src); break;
|
|
case 1: gen_helper_neon_narrow_u16(dest, src); break;
|
|
case 2: tcg_gen_trunc_i64_i32(dest, src); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_narrow_sats(int size, TCGv dest, TCGv_i64 src)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break;
|
|
case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break;
|
|
case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_narrow_satu(int size, TCGv dest, TCGv_i64 src)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break;
|
|
case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break;
|
|
case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_shift_narrow(int size, TCGv var, TCGv shift,
|
|
int q, int u)
|
|
{
|
|
if (q) {
|
|
if (u) {
|
|
switch (size) {
|
|
case 1: gen_helper_neon_rshl_u16(var, var, shift); break;
|
|
case 2: gen_helper_neon_rshl_u32(var, var, shift); break;
|
|
default: abort();
|
|
}
|
|
} else {
|
|
switch (size) {
|
|
case 1: gen_helper_neon_rshl_s16(var, var, shift); break;
|
|
case 2: gen_helper_neon_rshl_s32(var, var, shift); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
} else {
|
|
if (u) {
|
|
switch (size) {
|
|
case 1: gen_helper_neon_rshl_u16(var, var, shift); break;
|
|
case 2: gen_helper_neon_rshl_u32(var, var, shift); break;
|
|
default: abort();
|
|
}
|
|
} else {
|
|
switch (size) {
|
|
case 1: gen_helper_neon_shl_s16(var, var, shift); break;
|
|
case 2: gen_helper_neon_shl_s32(var, var, shift); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_widen(TCGv_i64 dest, TCGv src, int size, int u)
|
|
{
|
|
if (u) {
|
|
switch (size) {
|
|
case 0: gen_helper_neon_widen_u8(dest, src); break;
|
|
case 1: gen_helper_neon_widen_u16(dest, src); break;
|
|
case 2: tcg_gen_extu_i32_i64(dest, src); break;
|
|
default: abort();
|
|
}
|
|
} else {
|
|
switch (size) {
|
|
case 0: gen_helper_neon_widen_s8(dest, src); break;
|
|
case 1: gen_helper_neon_widen_s16(dest, src); break;
|
|
case 2: tcg_gen_ext_i32_i64(dest, src); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
dead_tmp(src);
|
|
}
|
|
|
|
static inline void gen_neon_addl(int size)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_addl_u16(CPU_V001); break;
|
|
case 1: gen_helper_neon_addl_u32(CPU_V001); break;
|
|
case 2: tcg_gen_add_i64(CPU_V001); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_subl(int size)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_subl_u16(CPU_V001); break;
|
|
case 1: gen_helper_neon_subl_u32(CPU_V001); break;
|
|
case 2: tcg_gen_sub_i64(CPU_V001); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_negl(TCGv_i64 var, int size)
|
|
{
|
|
switch (size) {
|
|
case 0: gen_helper_neon_negl_u16(var, var); break;
|
|
case 1: gen_helper_neon_negl_u32(var, var); break;
|
|
case 2: gen_helper_neon_negl_u64(var, var); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_addl_saturate(TCGv_i64 op0, TCGv_i64 op1, int size)
|
|
{
|
|
switch (size) {
|
|
case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break;
|
|
case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
static inline void gen_neon_mull(TCGv_i64 dest, TCGv a, TCGv b, int size, int u)
|
|
{
|
|
TCGv_i64 tmp;
|
|
|
|
switch ((size << 1) | u) {
|
|
case 0: gen_helper_neon_mull_s8(dest, a, b); break;
|
|
case 1: gen_helper_neon_mull_u8(dest, a, b); break;
|
|
case 2: gen_helper_neon_mull_s16(dest, a, b); break;
|
|
case 3: gen_helper_neon_mull_u16(dest, a, b); break;
|
|
case 4:
|
|
tmp = gen_muls_i64_i32(a, b);
|
|
tcg_gen_mov_i64(dest, tmp);
|
|
break;
|
|
case 5:
|
|
tmp = gen_mulu_i64_i32(a, b);
|
|
tcg_gen_mov_i64(dest, tmp);
|
|
break;
|
|
default: abort();
|
|
}
|
|
}
|
|
|
|
/* Translate a NEON data processing instruction. Return nonzero if the
|
|
instruction is invalid.
|
|
We process data in a mixture of 32-bit and 64-bit chunks.
|
|
Mostly we use 32-bit chunks so we can use normal scalar instructions. */
|
|
|
|
static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int op;
|
|
int q;
|
|
int rd, rn, rm;
|
|
int size;
|
|
int shift;
|
|
int pass;
|
|
int count;
|
|
int pairwise;
|
|
int u;
|
|
int n;
|
|
uint32_t imm, mask;
|
|
TCGv tmp, tmp2, tmp3, tmp4, tmp5;
|
|
TCGv_i64 tmp64;
|
|
|
|
if (!vfp_enabled(env))
|
|
return 1;
|
|
q = (insn & (1 << 6)) != 0;
|
|
u = (insn >> 24) & 1;
|
|
VFP_DREG_D(rd, insn);
|
|
VFP_DREG_N(rn, insn);
|
|
VFP_DREG_M(rm, insn);
|
|
size = (insn >> 20) & 3;
|
|
if ((insn & (1 << 23)) == 0) {
|
|
/* Three register same length. */
|
|
op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1);
|
|
if (size == 3 && (op == 1 || op == 5 || op == 8 || op == 9
|
|
|| op == 10 || op == 11 || op == 16)) {
|
|
/* 64-bit element instructions. */
|
|
for (pass = 0; pass < (q ? 2 : 1); pass++) {
|
|
neon_load_reg64(cpu_V0, rn + pass);
|
|
neon_load_reg64(cpu_V1, rm + pass);
|
|
switch (op) {
|
|
case 1: /* VQADD */
|
|
if (u) {
|
|
gen_helper_neon_add_saturate_u64(CPU_V001);
|
|
} else {
|
|
gen_helper_neon_add_saturate_s64(CPU_V001);
|
|
}
|
|
break;
|
|
case 5: /* VQSUB */
|
|
if (u) {
|
|
gen_helper_neon_sub_saturate_u64(CPU_V001);
|
|
} else {
|
|
gen_helper_neon_sub_saturate_s64(CPU_V001);
|
|
}
|
|
break;
|
|
case 8: /* VSHL */
|
|
if (u) {
|
|
gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0);
|
|
} else {
|
|
gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0);
|
|
}
|
|
break;
|
|
case 9: /* VQSHL */
|
|
if (u) {
|
|
gen_helper_neon_qshl_u64(cpu_V0, cpu_env,
|
|
cpu_V0, cpu_V0);
|
|
} else {
|
|
gen_helper_neon_qshl_s64(cpu_V1, cpu_env,
|
|
cpu_V1, cpu_V0);
|
|
}
|
|
break;
|
|
case 10: /* VRSHL */
|
|
if (u) {
|
|
gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0);
|
|
} else {
|
|
gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0);
|
|
}
|
|
break;
|
|
case 11: /* VQRSHL */
|
|
if (u) {
|
|
gen_helper_neon_qrshl_u64(cpu_V0, cpu_env,
|
|
cpu_V1, cpu_V0);
|
|
} else {
|
|
gen_helper_neon_qrshl_s64(cpu_V0, cpu_env,
|
|
cpu_V1, cpu_V0);
|
|
}
|
|
break;
|
|
case 16:
|
|
if (u) {
|
|
tcg_gen_sub_i64(CPU_V001);
|
|
} else {
|
|
tcg_gen_add_i64(CPU_V001);
|
|
}
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
return 0;
|
|
}
|
|
switch (op) {
|
|
case 8: /* VSHL */
|
|
case 9: /* VQSHL */
|
|
case 10: /* VRSHL */
|
|
case 11: /* VQRSHL */
|
|
{
|
|
int rtmp;
|
|
/* Shift instruction operands are reversed. */
|
|
rtmp = rn;
|
|
rn = rm;
|
|
rm = rtmp;
|
|
pairwise = 0;
|
|
}
|
|
break;
|
|
case 20: /* VPMAX */
|
|
case 21: /* VPMIN */
|
|
case 23: /* VPADD */
|
|
pairwise = 1;
|
|
break;
|
|
case 26: /* VPADD (float) */
|
|
pairwise = (u && size < 2);
|
|
break;
|
|
case 30: /* VPMIN/VPMAX (float) */
|
|
pairwise = u;
|
|
break;
|
|
default:
|
|
pairwise = 0;
|
|
break;
|
|
}
|
|
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
|
|
if (pairwise) {
|
|
/* Pairwise. */
|
|
if (q)
|
|
n = (pass & 1) * 2;
|
|
else
|
|
n = 0;
|
|
if (pass < q + 1) {
|
|
tmp = neon_load_reg(rn, n);
|
|
tmp2 = neon_load_reg(rn, n + 1);
|
|
} else {
|
|
tmp = neon_load_reg(rm, n);
|
|
tmp2 = neon_load_reg(rm, n + 1);
|
|
}
|
|
} else {
|
|
/* Elementwise. */
|
|
tmp = neon_load_reg(rn, pass);
|
|
tmp2 = neon_load_reg(rm, pass);
|
|
}
|
|
switch (op) {
|
|
case 0: /* VHADD */
|
|
GEN_NEON_INTEGER_OP(hadd);
|
|
break;
|
|
case 1: /* VQADD */
|
|
GEN_NEON_INTEGER_OP_ENV(qadd);
|
|
break;
|
|
case 2: /* VRHADD */
|
|
GEN_NEON_INTEGER_OP(rhadd);
|
|
break;
|
|
case 3: /* Logic ops. */
|
|
switch ((u << 2) | size) {
|
|
case 0: /* VAND */
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
break;
|
|
case 1: /* BIC */
|
|
tcg_gen_andc_i32(tmp, tmp, tmp2);
|
|
break;
|
|
case 2: /* VORR */
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
break;
|
|
case 3: /* VORN */
|
|
tcg_gen_orc_i32(tmp, tmp, tmp2);
|
|
break;
|
|
case 4: /* VEOR */
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
break;
|
|
case 5: /* VBSL */
|
|
tmp3 = neon_load_reg(rd, pass);
|
|
gen_neon_bsl(tmp, tmp, tmp2, tmp3);
|
|
dead_tmp(tmp3);
|
|
break;
|
|
case 6: /* VBIT */
|
|
tmp3 = neon_load_reg(rd, pass);
|
|
gen_neon_bsl(tmp, tmp, tmp3, tmp2);
|
|
dead_tmp(tmp3);
|
|
break;
|
|
case 7: /* VBIF */
|
|
tmp3 = neon_load_reg(rd, pass);
|
|
gen_neon_bsl(tmp, tmp3, tmp, tmp2);
|
|
dead_tmp(tmp3);
|
|
break;
|
|
}
|
|
break;
|
|
case 4: /* VHSUB */
|
|
GEN_NEON_INTEGER_OP(hsub);
|
|
break;
|
|
case 5: /* VQSUB */
|
|
GEN_NEON_INTEGER_OP_ENV(qsub);
|
|
break;
|
|
case 6: /* VCGT */
|
|
GEN_NEON_INTEGER_OP(cgt);
|
|
break;
|
|
case 7: /* VCGE */
|
|
GEN_NEON_INTEGER_OP(cge);
|
|
break;
|
|
case 8: /* VSHL */
|
|
GEN_NEON_INTEGER_OP(shl);
|
|
break;
|
|
case 9: /* VQSHL */
|
|
GEN_NEON_INTEGER_OP_ENV(qshl);
|
|
break;
|
|
case 10: /* VRSHL */
|
|
GEN_NEON_INTEGER_OP(rshl);
|
|
break;
|
|
case 11: /* VQRSHL */
|
|
GEN_NEON_INTEGER_OP_ENV(qrshl);
|
|
break;
|
|
case 12: /* VMAX */
|
|
GEN_NEON_INTEGER_OP(max);
|
|
break;
|
|
case 13: /* VMIN */
|
|
GEN_NEON_INTEGER_OP(min);
|
|
break;
|
|
case 14: /* VABD */
|
|
GEN_NEON_INTEGER_OP(abd);
|
|
break;
|
|
case 15: /* VABA */
|
|
GEN_NEON_INTEGER_OP(abd);
|
|
dead_tmp(tmp2);
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
gen_neon_add(size, tmp, tmp2);
|
|
break;
|
|
case 16:
|
|
if (!u) { /* VADD */
|
|
if (gen_neon_add(size, tmp, tmp2))
|
|
return 1;
|
|
} else { /* VSUB */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_sub_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_sub_u16(tmp, tmp, tmp2); break;
|
|
case 2: tcg_gen_sub_i32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
}
|
|
break;
|
|
case 17:
|
|
if (!u) { /* VTST */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_tst_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_tst_u16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_tst_u32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
} else { /* VCEQ */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
}
|
|
break;
|
|
case 18: /* Multiply. */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break;
|
|
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
dead_tmp(tmp2);
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
if (u) { /* VMLS */
|
|
gen_neon_rsb(size, tmp, tmp2);
|
|
} else { /* VMLA */
|
|
gen_neon_add(size, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 19: /* VMUL */
|
|
if (u) { /* polynomial */
|
|
gen_helper_neon_mul_p8(tmp, tmp, tmp2);
|
|
} else { /* Integer */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break;
|
|
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
}
|
|
break;
|
|
case 20: /* VPMAX */
|
|
GEN_NEON_INTEGER_OP(pmax);
|
|
break;
|
|
case 21: /* VPMIN */
|
|
GEN_NEON_INTEGER_OP(pmin);
|
|
break;
|
|
case 22: /* Hultiply high. */
|
|
if (!u) { /* VQDMULH */
|
|
switch (size) {
|
|
case 1: gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
} else { /* VQRDHMUL */
|
|
switch (size) {
|
|
case 1: gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
}
|
|
break;
|
|
case 23: /* VPADD */
|
|
if (u)
|
|
return 1;
|
|
switch (size) {
|
|
case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break;
|
|
case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 26: /* Floating point arithnetic. */
|
|
switch ((u << 2) | size) {
|
|
case 0: /* VADD */
|
|
gen_helper_neon_add_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 2: /* VSUB */
|
|
gen_helper_neon_sub_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 4: /* VPADD */
|
|
gen_helper_neon_add_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 6: /* VABD */
|
|
gen_helper_neon_abd_f32(tmp, tmp, tmp2);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
break;
|
|
case 27: /* Float multiply. */
|
|
gen_helper_neon_mul_f32(tmp, tmp, tmp2);
|
|
if (!u) {
|
|
dead_tmp(tmp2);
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
if (size == 0) {
|
|
gen_helper_neon_add_f32(tmp, tmp, tmp2);
|
|
} else {
|
|
gen_helper_neon_sub_f32(tmp, tmp2, tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 28: /* Float compare. */
|
|
if (!u) {
|
|
gen_helper_neon_ceq_f32(tmp, tmp, tmp2);
|
|
} else {
|
|
if (size == 0)
|
|
gen_helper_neon_cge_f32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_neon_cgt_f32(tmp, tmp, tmp2);
|
|
}
|
|
break;
|
|
case 29: /* Float compare absolute. */
|
|
if (!u)
|
|
return 1;
|
|
if (size == 0)
|
|
gen_helper_neon_acge_f32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_neon_acgt_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 30: /* Float min/max. */
|
|
if (size == 0)
|
|
gen_helper_neon_max_f32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_neon_min_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 31:
|
|
if (size == 0)
|
|
gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env);
|
|
else
|
|
gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
dead_tmp(tmp2);
|
|
|
|
/* Save the result. For elementwise operations we can put it
|
|
straight into the destination register. For pairwise operations
|
|
we have to be careful to avoid clobbering the source operands. */
|
|
if (pairwise && rd == rm) {
|
|
neon_store_scratch(pass, tmp);
|
|
} else {
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
|
|
} /* for pass */
|
|
if (pairwise && rd == rm) {
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
tmp = neon_load_scratch(pass);
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
}
|
|
/* End of 3 register same size operations. */
|
|
} else if (insn & (1 << 4)) {
|
|
if ((insn & 0x00380080) != 0) {
|
|
/* Two registers and shift. */
|
|
op = (insn >> 8) & 0xf;
|
|
if (insn & (1 << 7)) {
|
|
/* 64-bit shift. */
|
|
size = 3;
|
|
} else {
|
|
size = 2;
|
|
while ((insn & (1 << (size + 19))) == 0)
|
|
size--;
|
|
}
|
|
shift = (insn >> 16) & ((1 << (3 + size)) - 1);
|
|
/* To avoid excessive dumplication of ops we implement shift
|
|
by immediate using the variable shift operations. */
|
|
if (op < 8) {
|
|
/* Shift by immediate:
|
|
VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */
|
|
/* Right shifts are encoded as N - shift, where N is the
|
|
element size in bits. */
|
|
if (op <= 4)
|
|
shift = shift - (1 << (size + 3));
|
|
if (size == 3) {
|
|
count = q + 1;
|
|
} else {
|
|
count = q ? 4: 2;
|
|
}
|
|
switch (size) {
|
|
case 0:
|
|
imm = (uint8_t) shift;
|
|
imm |= imm << 8;
|
|
imm |= imm << 16;
|
|
break;
|
|
case 1:
|
|
imm = (uint16_t) shift;
|
|
imm |= imm << 16;
|
|
break;
|
|
case 2:
|
|
case 3:
|
|
imm = shift;
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
for (pass = 0; pass < count; pass++) {
|
|
if (size == 3) {
|
|
neon_load_reg64(cpu_V0, rm + pass);
|
|
tcg_gen_movi_i64(cpu_V1, imm);
|
|
switch (op) {
|
|
case 0: /* VSHR */
|
|
case 1: /* VSRA */
|
|
if (u)
|
|
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
|
|
else
|
|
gen_helper_neon_shl_s64(cpu_V0, cpu_V0, cpu_V1);
|
|
break;
|
|
case 2: /* VRSHR */
|
|
case 3: /* VRSRA */
|
|
if (u)
|
|
gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1);
|
|
else
|
|
gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1);
|
|
break;
|
|
case 4: /* VSRI */
|
|
if (!u)
|
|
return 1;
|
|
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
|
|
break;
|
|
case 5: /* VSHL, VSLI */
|
|
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
|
|
break;
|
|
case 6: /* VQSHL */
|
|
if (u)
|
|
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
|
|
else
|
|
gen_helper_neon_qshl_s64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
|
|
break;
|
|
case 7: /* VQSHLU */
|
|
gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
|
|
break;
|
|
}
|
|
if (op == 1 || op == 3) {
|
|
/* Accumulate. */
|
|
neon_load_reg64(cpu_V0, rd + pass);
|
|
tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1);
|
|
} else if (op == 4 || (op == 5 && u)) {
|
|
/* Insert */
|
|
cpu_abort(env, "VS[LR]I.64 not implemented");
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
} else { /* size < 3 */
|
|
/* Operands in T0 and T1. */
|
|
tmp = neon_load_reg(rm, pass);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, imm);
|
|
switch (op) {
|
|
case 0: /* VSHR */
|
|
case 1: /* VSRA */
|
|
GEN_NEON_INTEGER_OP(shl);
|
|
break;
|
|
case 2: /* VRSHR */
|
|
case 3: /* VRSRA */
|
|
GEN_NEON_INTEGER_OP(rshl);
|
|
break;
|
|
case 4: /* VSRI */
|
|
if (!u)
|
|
return 1;
|
|
GEN_NEON_INTEGER_OP(shl);
|
|
break;
|
|
case 5: /* VSHL, VSLI */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_shl_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_shl_u16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_shl_u32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 6: /* VQSHL */
|
|
GEN_NEON_INTEGER_OP_ENV(qshl);
|
|
break;
|
|
case 7: /* VQSHLU */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_qshl_u8(tmp, cpu_env, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_qshl_u16(tmp, cpu_env, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_qshl_u32(tmp, cpu_env, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
}
|
|
dead_tmp(tmp2);
|
|
|
|
if (op == 1 || op == 3) {
|
|
/* Accumulate. */
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
gen_neon_add(size, tmp2, tmp);
|
|
dead_tmp(tmp2);
|
|
} else if (op == 4 || (op == 5 && u)) {
|
|
/* Insert */
|
|
switch (size) {
|
|
case 0:
|
|
if (op == 4)
|
|
mask = 0xff >> -shift;
|
|
else
|
|
mask = (uint8_t)(0xff << shift);
|
|
mask |= mask << 8;
|
|
mask |= mask << 16;
|
|
break;
|
|
case 1:
|
|
if (op == 4)
|
|
mask = 0xffff >> -shift;
|
|
else
|
|
mask = (uint16_t)(0xffff << shift);
|
|
mask |= mask << 16;
|
|
break;
|
|
case 2:
|
|
if (shift < -31 || shift > 31) {
|
|
mask = 0;
|
|
} else {
|
|
if (op == 4)
|
|
mask = 0xffffffffu >> -shift;
|
|
else
|
|
mask = 0xffffffffu << shift;
|
|
}
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
tcg_gen_andi_i32(tmp, tmp, mask);
|
|
tcg_gen_andi_i32(tmp2, tmp2, ~mask);
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
} /* for pass */
|
|
} else if (op < 10) {
|
|
/* Shift by immediate and narrow:
|
|
VSHRN, VRSHRN, VQSHRN, VQRSHRN. */
|
|
shift = shift - (1 << (size + 3));
|
|
size++;
|
|
switch (size) {
|
|
case 1:
|
|
imm = (uint16_t)shift;
|
|
imm |= imm << 16;
|
|
tmp2 = tcg_const_i32(imm);
|
|
TCGV_UNUSED_I64(tmp64);
|
|
break;
|
|
case 2:
|
|
imm = (uint32_t)shift;
|
|
tmp2 = tcg_const_i32(imm);
|
|
TCGV_UNUSED_I64(tmp64);
|
|
break;
|
|
case 3:
|
|
tmp64 = tcg_const_i64(shift);
|
|
TCGV_UNUSED(tmp2);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (size == 3) {
|
|
neon_load_reg64(cpu_V0, rm + pass);
|
|
if (q) {
|
|
if (u)
|
|
gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, tmp64);
|
|
else
|
|
gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, tmp64);
|
|
} else {
|
|
if (u)
|
|
gen_helper_neon_shl_u64(cpu_V0, cpu_V0, tmp64);
|
|
else
|
|
gen_helper_neon_shl_s64(cpu_V0, cpu_V0, tmp64);
|
|
}
|
|
} else {
|
|
tmp = neon_load_reg(rm + pass, 0);
|
|
gen_neon_shift_narrow(size, tmp, tmp2, q, u);
|
|
tmp3 = neon_load_reg(rm + pass, 1);
|
|
gen_neon_shift_narrow(size, tmp3, tmp2, q, u);
|
|
tcg_gen_concat_i32_i64(cpu_V0, tmp, tmp3);
|
|
dead_tmp(tmp);
|
|
dead_tmp(tmp3);
|
|
}
|
|
tmp = new_tmp();
|
|
if (op == 8 && !u) {
|
|
gen_neon_narrow(size - 1, tmp, cpu_V0);
|
|
} else {
|
|
if (op == 8)
|
|
gen_neon_narrow_sats(size - 1, tmp, cpu_V0);
|
|
else
|
|
gen_neon_narrow_satu(size - 1, tmp, cpu_V0);
|
|
}
|
|
neon_store_reg(rd, pass, tmp);
|
|
} /* for pass */
|
|
if (size == 3) {
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
dead_tmp(tmp2);
|
|
}
|
|
} else if (op == 10) {
|
|
/* VSHLL */
|
|
if (q || size == 3)
|
|
return 1;
|
|
tmp = neon_load_reg(rm, 0);
|
|
tmp2 = neon_load_reg(rm, 1);
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (pass == 1)
|
|
tmp = tmp2;
|
|
|
|
gen_neon_widen(cpu_V0, tmp, size, u);
|
|
|
|
if (shift != 0) {
|
|
/* The shift is less than the width of the source
|
|
type, so we can just shift the whole register. */
|
|
tcg_gen_shli_i64(cpu_V0, cpu_V0, shift);
|
|
if (size < 2 || !u) {
|
|
uint64_t imm64;
|
|
if (size == 0) {
|
|
imm = (0xffu >> (8 - shift));
|
|
imm |= imm << 16;
|
|
} else {
|
|
imm = 0xffff >> (16 - shift);
|
|
}
|
|
imm64 = imm | (((uint64_t)imm) << 32);
|
|
tcg_gen_andi_i64(cpu_V0, cpu_V0, imm64);
|
|
}
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
} else if (op == 15 || op == 16) {
|
|
/* VCVT fixed-point. */
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, pass));
|
|
if (op & 1) {
|
|
if (u)
|
|
gen_vfp_ulto(0, shift);
|
|
else
|
|
gen_vfp_slto(0, shift);
|
|
} else {
|
|
if (u)
|
|
gen_vfp_toul(0, shift);
|
|
else
|
|
gen_vfp_tosl(0, shift);
|
|
}
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, pass));
|
|
}
|
|
} else {
|
|
return 1;
|
|
}
|
|
} else { /* (insn & 0x00380080) == 0 */
|
|
int invert;
|
|
|
|
op = (insn >> 8) & 0xf;
|
|
/* One register and immediate. */
|
|
imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf);
|
|
invert = (insn & (1 << 5)) != 0;
|
|
switch (op) {
|
|
case 0: case 1:
|
|
/* no-op */
|
|
break;
|
|
case 2: case 3:
|
|
imm <<= 8;
|
|
break;
|
|
case 4: case 5:
|
|
imm <<= 16;
|
|
break;
|
|
case 6: case 7:
|
|
imm <<= 24;
|
|
break;
|
|
case 8: case 9:
|
|
imm |= imm << 16;
|
|
break;
|
|
case 10: case 11:
|
|
imm = (imm << 8) | (imm << 24);
|
|
break;
|
|
case 12:
|
|
imm = (imm < 8) | 0xff;
|
|
break;
|
|
case 13:
|
|
imm = (imm << 16) | 0xffff;
|
|
break;
|
|
case 14:
|
|
imm |= (imm << 8) | (imm << 16) | (imm << 24);
|
|
if (invert)
|
|
imm = ~imm;
|
|
break;
|
|
case 15:
|
|
imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19)
|
|
| ((imm & 0x40) ? (0x1f << 25) : (1 << 30));
|
|
break;
|
|
}
|
|
if (invert)
|
|
imm = ~imm;
|
|
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
if (op & 1 && op < 12) {
|
|
tmp = neon_load_reg(rd, pass);
|
|
if (invert) {
|
|
/* The immediate value has already been inverted, so
|
|
BIC becomes AND. */
|
|
tcg_gen_andi_i32(tmp, tmp, imm);
|
|
} else {
|
|
tcg_gen_ori_i32(tmp, tmp, imm);
|
|
}
|
|
} else {
|
|
/* VMOV, VMVN. */
|
|
tmp = new_tmp();
|
|
if (op == 14 && invert) {
|
|
uint32_t val;
|
|
val = 0;
|
|
for (n = 0; n < 4; n++) {
|
|
if (imm & (1 << (n + (pass & 1) * 4)))
|
|
val |= 0xff << (n * 8);
|
|
}
|
|
tcg_gen_movi_i32(tmp, val);
|
|
} else {
|
|
tcg_gen_movi_i32(tmp, imm);
|
|
}
|
|
}
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
}
|
|
} else { /* (insn & 0x00800010 == 0x00800000) */
|
|
if (size != 3) {
|
|
op = (insn >> 8) & 0xf;
|
|
if ((insn & (1 << 6)) == 0) {
|
|
/* Three registers of different lengths. */
|
|
int src1_wide;
|
|
int src2_wide;
|
|
int prewiden;
|
|
/* prewiden, src1_wide, src2_wide */
|
|
static const int neon_3reg_wide[16][3] = {
|
|
{1, 0, 0}, /* VADDL */
|
|
{1, 1, 0}, /* VADDW */
|
|
{1, 0, 0}, /* VSUBL */
|
|
{1, 1, 0}, /* VSUBW */
|
|
{0, 1, 1}, /* VADDHN */
|
|
{0, 0, 0}, /* VABAL */
|
|
{0, 1, 1}, /* VSUBHN */
|
|
{0, 0, 0}, /* VABDL */
|
|
{0, 0, 0}, /* VMLAL */
|
|
{0, 0, 0}, /* VQDMLAL */
|
|
{0, 0, 0}, /* VMLSL */
|
|
{0, 0, 0}, /* VQDMLSL */
|
|
{0, 0, 0}, /* Integer VMULL */
|
|
{0, 0, 0}, /* VQDMULL */
|
|
{0, 0, 0} /* Polynomial VMULL */
|
|
};
|
|
|
|
prewiden = neon_3reg_wide[op][0];
|
|
src1_wide = neon_3reg_wide[op][1];
|
|
src2_wide = neon_3reg_wide[op][2];
|
|
|
|
if (size == 0 && (op == 9 || op == 11 || op == 13))
|
|
return 1;
|
|
|
|
/* Avoid overlapping operands. Wide source operands are
|
|
always aligned so will never overlap with wide
|
|
destinations in problematic ways. */
|
|
if (rd == rm && !src2_wide) {
|
|
tmp = neon_load_reg(rm, 1);
|
|
neon_store_scratch(2, tmp);
|
|
} else if (rd == rn && !src1_wide) {
|
|
tmp = neon_load_reg(rn, 1);
|
|
neon_store_scratch(2, tmp);
|
|
}
|
|
TCGV_UNUSED(tmp3);
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (src1_wide) {
|
|
neon_load_reg64(cpu_V0, rn + pass);
|
|
TCGV_UNUSED(tmp);
|
|
} else {
|
|
if (pass == 1 && rd == rn) {
|
|
tmp = neon_load_scratch(2);
|
|
} else {
|
|
tmp = neon_load_reg(rn, pass);
|
|
}
|
|
if (prewiden) {
|
|
gen_neon_widen(cpu_V0, tmp, size, u);
|
|
}
|
|
}
|
|
if (src2_wide) {
|
|
neon_load_reg64(cpu_V1, rm + pass);
|
|
TCGV_UNUSED(tmp2);
|
|
} else {
|
|
if (pass == 1 && rd == rm) {
|
|
tmp2 = neon_load_scratch(2);
|
|
} else {
|
|
tmp2 = neon_load_reg(rm, pass);
|
|
}
|
|
if (prewiden) {
|
|
gen_neon_widen(cpu_V1, tmp2, size, u);
|
|
}
|
|
}
|
|
switch (op) {
|
|
case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */
|
|
gen_neon_addl(size);
|
|
break;
|
|
case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHL, VRSUBHL */
|
|
gen_neon_subl(size);
|
|
break;
|
|
case 5: case 7: /* VABAL, VABDL */
|
|
switch ((size << 1) | u) {
|
|
case 0:
|
|
gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2);
|
|
break;
|
|
case 1:
|
|
gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2);
|
|
break;
|
|
case 2:
|
|
gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2);
|
|
break;
|
|
case 3:
|
|
gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2);
|
|
break;
|
|
case 4:
|
|
gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2);
|
|
break;
|
|
case 5:
|
|
gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2);
|
|
break;
|
|
default: abort();
|
|
}
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 8: case 9: case 10: case 11: case 12: case 13:
|
|
/* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */
|
|
gen_neon_mull(cpu_V0, tmp, tmp2, size, u);
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 14: /* Polynomial VMULL */
|
|
cpu_abort(env, "Polynomial VMULL not implemented");
|
|
|
|
default: /* 15 is RESERVED. */
|
|
return 1;
|
|
}
|
|
if (op == 5 || op == 13 || (op >= 8 && op <= 11)) {
|
|
/* Accumulate. */
|
|
if (op == 10 || op == 11) {
|
|
gen_neon_negl(cpu_V0, size);
|
|
}
|
|
|
|
if (op != 13) {
|
|
neon_load_reg64(cpu_V1, rd + pass);
|
|
}
|
|
|
|
switch (op) {
|
|
case 5: case 8: case 10: /* VABAL, VMLAL, VMLSL */
|
|
gen_neon_addl(size);
|
|
break;
|
|
case 9: case 11: /* VQDMLAL, VQDMLSL */
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V1, size);
|
|
break;
|
|
/* Fall through. */
|
|
case 13: /* VQDMULL */
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
} else if (op == 4 || op == 6) {
|
|
/* Narrowing operation. */
|
|
tmp = new_tmp();
|
|
if (u) {
|
|
switch (size) {
|
|
case 0:
|
|
gen_helper_neon_narrow_high_u8(tmp, cpu_V0);
|
|
break;
|
|
case 1:
|
|
gen_helper_neon_narrow_high_u16(tmp, cpu_V0);
|
|
break;
|
|
case 2:
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_V0);
|
|
break;
|
|
default: abort();
|
|
}
|
|
} else {
|
|
switch (size) {
|
|
case 0:
|
|
gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0);
|
|
break;
|
|
case 1:
|
|
gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0);
|
|
break;
|
|
case 2:
|
|
tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31);
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
|
|
tcg_gen_trunc_i64_i32(tmp, cpu_V0);
|
|
break;
|
|
default: abort();
|
|
}
|
|
}
|
|
if (pass == 0) {
|
|
tmp3 = tmp;
|
|
} else {
|
|
neon_store_reg(rd, 0, tmp3);
|
|
neon_store_reg(rd, 1, tmp);
|
|
}
|
|
} else {
|
|
/* Write back the result. */
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
}
|
|
} else {
|
|
/* Two registers and a scalar. */
|
|
switch (op) {
|
|
case 0: /* Integer VMLA scalar */
|
|
case 1: /* Float VMLA scalar */
|
|
case 4: /* Integer VMLS scalar */
|
|
case 5: /* Floating point VMLS scalar */
|
|
case 8: /* Integer VMUL scalar */
|
|
case 9: /* Floating point VMUL scalar */
|
|
case 12: /* VQDMULH scalar */
|
|
case 13: /* VQRDMULH scalar */
|
|
tmp = neon_get_scalar(size, rm);
|
|
neon_store_scratch(0, tmp);
|
|
for (pass = 0; pass < (u ? 4 : 2); pass++) {
|
|
tmp = neon_load_scratch(0);
|
|
tmp2 = neon_load_reg(rn, pass);
|
|
if (op == 12) {
|
|
if (size == 1) {
|
|
gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2);
|
|
} else {
|
|
gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2);
|
|
}
|
|
} else if (op == 13) {
|
|
if (size == 1) {
|
|
gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2);
|
|
} else {
|
|
gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2);
|
|
}
|
|
} else if (op & 1) {
|
|
gen_helper_neon_mul_f32(tmp, tmp, tmp2);
|
|
} else {
|
|
switch (size) {
|
|
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break;
|
|
case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
}
|
|
dead_tmp(tmp2);
|
|
if (op < 8) {
|
|
/* Accumulate. */
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
switch (op) {
|
|
case 0:
|
|
gen_neon_add(size, tmp, tmp2);
|
|
break;
|
|
case 1:
|
|
gen_helper_neon_add_f32(tmp, tmp, tmp2);
|
|
break;
|
|
case 4:
|
|
gen_neon_rsb(size, tmp, tmp2);
|
|
break;
|
|
case 5:
|
|
gen_helper_neon_sub_f32(tmp, tmp2, tmp);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
dead_tmp(tmp2);
|
|
}
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
break;
|
|
case 2: /* VMLAL sclar */
|
|
case 3: /* VQDMLAL scalar */
|
|
case 6: /* VMLSL scalar */
|
|
case 7: /* VQDMLSL scalar */
|
|
case 10: /* VMULL scalar */
|
|
case 11: /* VQDMULL scalar */
|
|
if (size == 0 && (op == 3 || op == 7 || op == 11))
|
|
return 1;
|
|
|
|
tmp2 = neon_get_scalar(size, rm);
|
|
tmp3 = neon_load_reg(rn, 1);
|
|
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (pass == 0) {
|
|
tmp = neon_load_reg(rn, 0);
|
|
} else {
|
|
tmp = tmp3;
|
|
}
|
|
gen_neon_mull(cpu_V0, tmp, tmp2, size, u);
|
|
dead_tmp(tmp);
|
|
if (op == 6 || op == 7) {
|
|
gen_neon_negl(cpu_V0, size);
|
|
}
|
|
if (op != 11) {
|
|
neon_load_reg64(cpu_V1, rd + pass);
|
|
}
|
|
switch (op) {
|
|
case 2: case 6:
|
|
gen_neon_addl(size);
|
|
break;
|
|
case 3: case 7:
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V1, size);
|
|
break;
|
|
case 10:
|
|
/* no-op */
|
|
break;
|
|
case 11:
|
|
gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
|
|
dead_tmp(tmp2);
|
|
|
|
break;
|
|
default: /* 14 and 15 are RESERVED */
|
|
return 1;
|
|
}
|
|
}
|
|
} else { /* size == 3 */
|
|
if (!u) {
|
|
/* Extract. */
|
|
imm = (insn >> 8) & 0xf;
|
|
count = q + 1;
|
|
|
|
if (imm > 7 && !q)
|
|
return 1;
|
|
|
|
if (imm == 0) {
|
|
neon_load_reg64(cpu_V0, rn);
|
|
if (q) {
|
|
neon_load_reg64(cpu_V1, rn + 1);
|
|
}
|
|
} else if (imm == 8) {
|
|
neon_load_reg64(cpu_V0, rn + 1);
|
|
if (q) {
|
|
neon_load_reg64(cpu_V1, rm);
|
|
}
|
|
} else if (q) {
|
|
tmp64 = tcg_temp_new_i64();
|
|
if (imm < 8) {
|
|
neon_load_reg64(cpu_V0, rn);
|
|
neon_load_reg64(tmp64, rn + 1);
|
|
} else {
|
|
neon_load_reg64(cpu_V0, rn + 1);
|
|
neon_load_reg64(tmp64, rm);
|
|
}
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8);
|
|
tcg_gen_shli_i64(cpu_V1, tmp64, 64 - ((imm & 7) * 8));
|
|
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
|
|
if (imm < 8) {
|
|
neon_load_reg64(cpu_V1, rm);
|
|
} else {
|
|
neon_load_reg64(cpu_V1, rm + 1);
|
|
imm -= 8;
|
|
}
|
|
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8));
|
|
tcg_gen_shri_i64(tmp64, tmp64, imm * 8);
|
|
tcg_gen_or_i64(cpu_V1, cpu_V1, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
/* BUGFIX */
|
|
neon_load_reg64(cpu_V0, rn);
|
|
tcg_gen_shri_i64(cpu_V0, cpu_V0, imm * 8);
|
|
neon_load_reg64(cpu_V1, rm);
|
|
tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8));
|
|
tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
|
|
}
|
|
neon_store_reg64(cpu_V0, rd);
|
|
if (q) {
|
|
neon_store_reg64(cpu_V1, rd + 1);
|
|
}
|
|
} else if ((insn & (1 << 11)) == 0) {
|
|
/* Two register misc. */
|
|
op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf);
|
|
size = (insn >> 18) & 3;
|
|
switch (op) {
|
|
case 0: /* VREV64 */
|
|
if (size == 3)
|
|
return 1;
|
|
for (pass = 0; pass < (q ? 2 : 1); pass++) {
|
|
tmp = neon_load_reg(rm, pass * 2);
|
|
tmp2 = neon_load_reg(rm, pass * 2 + 1);
|
|
switch (size) {
|
|
case 0: tcg_gen_bswap32_i32(tmp, tmp); break;
|
|
case 1: gen_swap_half(tmp); break;
|
|
case 2: /* no-op */ break;
|
|
default: abort();
|
|
}
|
|
neon_store_reg(rd, pass * 2 + 1, tmp);
|
|
if (size == 2) {
|
|
neon_store_reg(rd, pass * 2, tmp2);
|
|
} else {
|
|
switch (size) {
|
|
case 0: tcg_gen_bswap32_i32(tmp2, tmp2); break;
|
|
case 1: gen_swap_half(tmp2); break;
|
|
default: abort();
|
|
}
|
|
neon_store_reg(rd, pass * 2, tmp2);
|
|
}
|
|
}
|
|
break;
|
|
case 4: case 5: /* VPADDL */
|
|
case 12: case 13: /* VPADAL */
|
|
if (size == 3)
|
|
return 1;
|
|
for (pass = 0; pass < q + 1; pass++) {
|
|
tmp = neon_load_reg(rm, pass * 2);
|
|
gen_neon_widen(cpu_V0, tmp, size, op & 1);
|
|
tmp = neon_load_reg(rm, pass * 2 + 1);
|
|
gen_neon_widen(cpu_V1, tmp, size, op & 1);
|
|
switch (size) {
|
|
case 0: gen_helper_neon_paddl_u16(CPU_V001); break;
|
|
case 1: gen_helper_neon_paddl_u32(CPU_V001); break;
|
|
case 2: tcg_gen_add_i64(CPU_V001); break;
|
|
default: abort();
|
|
}
|
|
if (op >= 12) {
|
|
/* Accumulate. */
|
|
neon_load_reg64(cpu_V1, rd + pass);
|
|
gen_neon_addl(size);
|
|
}
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
break;
|
|
case 33: /* VTRN */
|
|
if (size == 2) {
|
|
for (n = 0; n < (q ? 4 : 2); n += 2) {
|
|
tmp = neon_load_reg(rm, n);
|
|
tmp2 = neon_load_reg(rd, n + 1);
|
|
neon_store_reg(rm, n, tmp2);
|
|
neon_store_reg(rd, n + 1, tmp);
|
|
}
|
|
} else {
|
|
goto elementwise;
|
|
}
|
|
break;
|
|
case 34: /* VUZP */
|
|
/* Reg Before After
|
|
Rd A3 A2 A1 A0 B2 B0 A2 A0
|
|
Rm B3 B2 B1 B0 B3 B1 A3 A1
|
|
*/
|
|
if (size == 3)
|
|
return 1;
|
|
gen_neon_unzip(rd, q, 0, size);
|
|
gen_neon_unzip(rm, q, 4, size);
|
|
if (q) {
|
|
static int unzip_order_q[8] =
|
|
{0, 2, 4, 6, 1, 3, 5, 7};
|
|
for (n = 0; n < 8; n++) {
|
|
int reg = (n < 4) ? rd : rm;
|
|
tmp = neon_load_scratch(unzip_order_q[n]);
|
|
neon_store_reg(reg, n % 4, tmp);
|
|
}
|
|
} else {
|
|
static int unzip_order[4] =
|
|
{0, 4, 1, 5};
|
|
for (n = 0; n < 4; n++) {
|
|
int reg = (n < 2) ? rd : rm;
|
|
tmp = neon_load_scratch(unzip_order[n]);
|
|
neon_store_reg(reg, n % 2, tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 35: /* VZIP */
|
|
/* Reg Before After
|
|
Rd A3 A2 A1 A0 B1 A1 B0 A0
|
|
Rm B3 B2 B1 B0 B3 A3 B2 A2
|
|
*/
|
|
if (size == 3)
|
|
return 1;
|
|
count = (q ? 4 : 2);
|
|
for (n = 0; n < count; n++) {
|
|
tmp = neon_load_reg(rd, n);
|
|
tmp2 = neon_load_reg(rd, n);
|
|
switch (size) {
|
|
case 0: gen_neon_zip_u8(tmp, tmp2); break;
|
|
case 1: gen_neon_zip_u16(tmp, tmp2); break;
|
|
case 2: /* no-op */; break;
|
|
default: abort();
|
|
}
|
|
neon_store_scratch(n * 2, tmp);
|
|
neon_store_scratch(n * 2 + 1, tmp2);
|
|
}
|
|
for (n = 0; n < count * 2; n++) {
|
|
int reg = (n < count) ? rd : rm;
|
|
tmp = neon_load_scratch(n);
|
|
neon_store_reg(reg, n % count, tmp);
|
|
}
|
|
break;
|
|
case 36: case 37: /* VMOVN, VQMOVUN, VQMOVN */
|
|
if (size == 3)
|
|
return 1;
|
|
TCGV_UNUSED(tmp2);
|
|
for (pass = 0; pass < 2; pass++) {
|
|
neon_load_reg64(cpu_V0, rm + pass);
|
|
tmp = new_tmp();
|
|
if (op == 36 && q == 0) {
|
|
gen_neon_narrow(size, tmp, cpu_V0);
|
|
} else if (q) {
|
|
gen_neon_narrow_satu(size, tmp, cpu_V0);
|
|
} else {
|
|
gen_neon_narrow_sats(size, tmp, cpu_V0);
|
|
}
|
|
if (pass == 0) {
|
|
tmp2 = tmp;
|
|
} else {
|
|
neon_store_reg(rd, 0, tmp2);
|
|
neon_store_reg(rd, 1, tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 38: /* VSHLL */
|
|
if (q || size == 3)
|
|
return 1;
|
|
tmp = neon_load_reg(rm, 0);
|
|
tmp2 = neon_load_reg(rm, 1);
|
|
for (pass = 0; pass < 2; pass++) {
|
|
if (pass == 1)
|
|
tmp = tmp2;
|
|
gen_neon_widen(cpu_V0, tmp, size, 1);
|
|
neon_store_reg64(cpu_V0, rd + pass);
|
|
}
|
|
break;
|
|
case 44: /* VCVT.F16.F32 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp = new_tmp();
|
|
tmp2 = new_tmp();
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 0));
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env);
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 1));
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env);
|
|
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
|
tcg_gen_or_i32(tmp2, tmp2, tmp);
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 2));
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env);
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 3));
|
|
neon_store_reg(rd, 0, tmp2);
|
|
tmp2 = new_tmp();
|
|
gen_helper_vfp_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env);
|
|
tcg_gen_shli_i32(tmp2, tmp2, 16);
|
|
tcg_gen_or_i32(tmp2, tmp2, tmp);
|
|
neon_store_reg(rd, 1, tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 46: /* VCVT.F32.F16 */
|
|
if (!arm_feature(env, ARM_FEATURE_VFP_FP16))
|
|
return 1;
|
|
tmp3 = new_tmp();
|
|
tmp = neon_load_reg(rm, 0);
|
|
tmp2 = neon_load_reg(rm, 1);
|
|
tcg_gen_ext16u_i32(tmp3, tmp);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env);
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 0));
|
|
tcg_gen_shri_i32(tmp3, tmp, 16);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env);
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 1));
|
|
dead_tmp(tmp);
|
|
tcg_gen_ext16u_i32(tmp3, tmp2);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env);
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 2));
|
|
tcg_gen_shri_i32(tmp3, tmp2, 16);
|
|
gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env);
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 3));
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp3);
|
|
break;
|
|
default:
|
|
elementwise:
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
if (op == 30 || op == 31 || op >= 58) {
|
|
tcg_gen_ld_f32(cpu_F0s, cpu_env,
|
|
neon_reg_offset(rm, pass));
|
|
TCGV_UNUSED(tmp);
|
|
} else {
|
|
tmp = neon_load_reg(rm, pass);
|
|
}
|
|
switch (op) {
|
|
case 1: /* VREV32 */
|
|
switch (size) {
|
|
case 0: tcg_gen_bswap32_i32(tmp, tmp); break;
|
|
case 1: gen_swap_half(tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 2: /* VREV16 */
|
|
if (size != 0)
|
|
return 1;
|
|
gen_rev16(tmp);
|
|
break;
|
|
case 8: /* CLS */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_cls_s8(tmp, tmp); break;
|
|
case 1: gen_helper_neon_cls_s16(tmp, tmp); break;
|
|
case 2: gen_helper_neon_cls_s32(tmp, tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 9: /* CLZ */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_clz_u8(tmp, tmp); break;
|
|
case 1: gen_helper_neon_clz_u16(tmp, tmp); break;
|
|
case 2: gen_helper_clz(tmp, tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 10: /* CNT */
|
|
if (size != 0)
|
|
return 1;
|
|
gen_helper_neon_cnt_u8(tmp, tmp);
|
|
break;
|
|
case 11: /* VNOT */
|
|
if (size != 0)
|
|
return 1;
|
|
tcg_gen_not_i32(tmp, tmp);
|
|
break;
|
|
case 14: /* VQABS */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_qabs_s8(tmp, cpu_env, tmp); break;
|
|
case 1: gen_helper_neon_qabs_s16(tmp, cpu_env, tmp); break;
|
|
case 2: gen_helper_neon_qabs_s32(tmp, cpu_env, tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 15: /* VQNEG */
|
|
switch (size) {
|
|
case 0: gen_helper_neon_qneg_s8(tmp, cpu_env, tmp); break;
|
|
case 1: gen_helper_neon_qneg_s16(tmp, cpu_env, tmp); break;
|
|
case 2: gen_helper_neon_qneg_s32(tmp, cpu_env, tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 16: case 19: /* VCGT #0, VCLE #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
switch(size) {
|
|
case 0: gen_helper_neon_cgt_s8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_cgt_s16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_cgt_s32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
tcg_temp_free(tmp2);
|
|
if (op == 19)
|
|
tcg_gen_not_i32(tmp, tmp);
|
|
break;
|
|
case 17: case 20: /* VCGE #0, VCLT #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
switch(size) {
|
|
case 0: gen_helper_neon_cge_s8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_cge_s16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_cge_s32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
tcg_temp_free(tmp2);
|
|
if (op == 20)
|
|
tcg_gen_not_i32(tmp, tmp);
|
|
break;
|
|
case 18: /* VCEQ #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
switch(size) {
|
|
case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break;
|
|
case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break;
|
|
case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break;
|
|
default: return 1;
|
|
}
|
|
tcg_temp_free(tmp2);
|
|
break;
|
|
case 22: /* VABS */
|
|
switch(size) {
|
|
case 0: gen_helper_neon_abs_s8(tmp, tmp); break;
|
|
case 1: gen_helper_neon_abs_s16(tmp, tmp); break;
|
|
case 2: tcg_gen_abs_i32(tmp, tmp); break;
|
|
default: return 1;
|
|
}
|
|
break;
|
|
case 23: /* VNEG */
|
|
if (size == 3)
|
|
return 1;
|
|
tmp2 = tcg_const_i32(0);
|
|
gen_neon_rsb(size, tmp, tmp2);
|
|
tcg_temp_free(tmp2);
|
|
break;
|
|
case 24: case 27: /* Float VCGT #0, Float VCLE #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
gen_helper_neon_cgt_f32(tmp, tmp, tmp2);
|
|
tcg_temp_free(tmp2);
|
|
if (op == 27)
|
|
tcg_gen_not_i32(tmp, tmp);
|
|
break;
|
|
case 25: case 28: /* Float VCGE #0, Float VCLT #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
gen_helper_neon_cge_f32(tmp, tmp, tmp2);
|
|
tcg_temp_free(tmp2);
|
|
if (op == 28)
|
|
tcg_gen_not_i32(tmp, tmp);
|
|
break;
|
|
case 26: /* Float VCEQ #0 */
|
|
tmp2 = tcg_const_i32(0);
|
|
gen_helper_neon_ceq_f32(tmp, tmp, tmp2);
|
|
tcg_temp_free(tmp2);
|
|
break;
|
|
case 30: /* Float VABS */
|
|
gen_vfp_abs(0);
|
|
break;
|
|
case 31: /* Float VNEG */
|
|
gen_vfp_neg(0);
|
|
break;
|
|
case 32: /* VSWP */
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
neon_store_reg(rm, pass, tmp2);
|
|
break;
|
|
case 33: /* VTRN */
|
|
tmp2 = neon_load_reg(rd, pass);
|
|
switch (size) {
|
|
case 0: gen_neon_trn_u8(tmp, tmp2); break;
|
|
case 1: gen_neon_trn_u16(tmp, tmp2); break;
|
|
case 2: abort();
|
|
default: return 1;
|
|
}
|
|
neon_store_reg(rm, pass, tmp2);
|
|
break;
|
|
case 56: /* Integer VRECPE */
|
|
gen_helper_recpe_u32(tmp, tmp, cpu_env);
|
|
break;
|
|
case 57: /* Integer VRSQRTE */
|
|
gen_helper_rsqrte_u32(tmp, tmp, cpu_env);
|
|
break;
|
|
case 58: /* Float VRECPE */
|
|
gen_helper_recpe_f32(cpu_F0s, cpu_F0s, cpu_env);
|
|
break;
|
|
case 59: /* Float VRSQRTE */
|
|
gen_helper_rsqrte_f32(cpu_F0s, cpu_F0s, cpu_env);
|
|
break;
|
|
case 60: /* VCVT.F32.S32 */
|
|
gen_vfp_tosiz(0);
|
|
break;
|
|
case 61: /* VCVT.F32.U32 */
|
|
gen_vfp_touiz(0);
|
|
break;
|
|
case 62: /* VCVT.S32.F32 */
|
|
gen_vfp_sito(0);
|
|
break;
|
|
case 63: /* VCVT.U32.F32 */
|
|
gen_vfp_uito(0);
|
|
break;
|
|
default:
|
|
/* Reserved: 21, 29, 39-56 */
|
|
return 1;
|
|
}
|
|
if (op == 30 || op == 31 || op >= 58) {
|
|
tcg_gen_st_f32(cpu_F0s, cpu_env,
|
|
neon_reg_offset(rd, pass));
|
|
} else {
|
|
neon_store_reg(rd, pass, tmp);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
} else if ((insn & (1 << 10)) == 0) {
|
|
/* VTBL, VTBX. */
|
|
n = ((insn >> 5) & 0x18) + 8;
|
|
if (insn & (1 << 6)) {
|
|
tmp = neon_load_reg(rd, 0);
|
|
} else {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
}
|
|
tmp2 = neon_load_reg(rm, 0);
|
|
tmp4 = tcg_const_i32(rn);
|
|
tmp5 = tcg_const_i32(n);
|
|
gen_helper_neon_tbl(tmp2, tmp2, tmp, tmp4, tmp5);
|
|
dead_tmp(tmp);
|
|
if (insn & (1 << 6)) {
|
|
tmp = neon_load_reg(rd, 1);
|
|
} else {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
}
|
|
tmp3 = neon_load_reg(rm, 1);
|
|
gen_helper_neon_tbl(tmp3, tmp3, tmp, tmp4, tmp5);
|
|
tcg_temp_free_i32(tmp5);
|
|
tcg_temp_free_i32(tmp4);
|
|
neon_store_reg(rd, 0, tmp2);
|
|
neon_store_reg(rd, 1, tmp3);
|
|
dead_tmp(tmp);
|
|
} else if ((insn & 0x380) == 0) {
|
|
/* VDUP */
|
|
if (insn & (1 << 19)) {
|
|
tmp = neon_load_reg(rm, 1);
|
|
} else {
|
|
tmp = neon_load_reg(rm, 0);
|
|
}
|
|
if (insn & (1 << 16)) {
|
|
gen_neon_dup_u8(tmp, ((insn >> 17) & 3) * 8);
|
|
} else if (insn & (1 << 17)) {
|
|
if ((insn >> 18) & 1)
|
|
gen_neon_dup_high16(tmp);
|
|
else
|
|
gen_neon_dup_low16(tmp);
|
|
}
|
|
for (pass = 0; pass < (q ? 4 : 2); pass++) {
|
|
tmp2 = new_tmp();
|
|
tcg_gen_mov_i32(tmp2, tmp);
|
|
neon_store_reg(rd, pass, tmp2);
|
|
}
|
|
dead_tmp(tmp);
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int disas_cp14_read(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int crn = (insn >> 16) & 0xf;
|
|
int crm = insn & 0xf;
|
|
int op1 = (insn >> 21) & 7;
|
|
int op2 = (insn >> 5) & 7;
|
|
int rt = (insn >> 12) & 0xf;
|
|
TCGv tmp;
|
|
|
|
if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
|
|
if (op1 == 6 && crn == 0 && crm == 0 && op2 == 0) {
|
|
/* TEECR */
|
|
if (IS_USER(s))
|
|
return 1;
|
|
tmp = load_cpu_field(teecr);
|
|
store_reg(s, rt, tmp);
|
|
return 0;
|
|
}
|
|
if (op1 == 6 && crn == 1 && crm == 0 && op2 == 0) {
|
|
/* TEEHBR */
|
|
if (IS_USER(s) && (env->teecr & 1))
|
|
return 1;
|
|
tmp = load_cpu_field(teehbr);
|
|
store_reg(s, rt, tmp);
|
|
return 0;
|
|
}
|
|
}
|
|
fprintf(stderr, "Unknown cp14 read op1:%d crn:%d crm:%d op2:%d\n",
|
|
op1, crn, crm, op2);
|
|
return 1;
|
|
}
|
|
|
|
static int disas_cp14_write(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int crn = (insn >> 16) & 0xf;
|
|
int crm = insn & 0xf;
|
|
int op1 = (insn >> 21) & 7;
|
|
int op2 = (insn >> 5) & 7;
|
|
int rt = (insn >> 12) & 0xf;
|
|
TCGv tmp;
|
|
|
|
if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
|
|
if (op1 == 6 && crn == 0 && crm == 0 && op2 == 0) {
|
|
/* TEECR */
|
|
if (IS_USER(s))
|
|
return 1;
|
|
tmp = load_reg(s, rt);
|
|
gen_helper_set_teecr(cpu_env, tmp);
|
|
dead_tmp(tmp);
|
|
return 0;
|
|
}
|
|
if (op1 == 6 && crn == 1 && crm == 0 && op2 == 0) {
|
|
/* TEEHBR */
|
|
if (IS_USER(s) && (env->teecr & 1))
|
|
return 1;
|
|
tmp = load_reg(s, rt);
|
|
store_cpu_field(tmp, teehbr);
|
|
return 0;
|
|
}
|
|
}
|
|
fprintf(stderr, "Unknown cp14 write op1:%d crn:%d crm:%d op2:%d\n",
|
|
op1, crn, crm, op2);
|
|
return 1;
|
|
}
|
|
|
|
static int disas_coproc_insn(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int cpnum;
|
|
|
|
cpnum = (insn >> 8) & 0xf;
|
|
if (arm_feature(env, ARM_FEATURE_XSCALE)
|
|
&& ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum)))
|
|
return 1;
|
|
|
|
switch (cpnum) {
|
|
case 0:
|
|
case 1:
|
|
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
|
return disas_iwmmxt_insn(env, s, insn);
|
|
} else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
|
|
return disas_dsp_insn(env, s, insn);
|
|
}
|
|
return 1;
|
|
case 10:
|
|
case 11:
|
|
return disas_vfp_insn (env, s, insn);
|
|
case 14:
|
|
/* Coprocessors 7-15 are architecturally reserved by ARM.
|
|
Unfortunately Intel decided to ignore this. */
|
|
if (arm_feature(env, ARM_FEATURE_XSCALE))
|
|
goto board;
|
|
if (insn & (1 << 20))
|
|
return disas_cp14_read(env, s, insn);
|
|
else
|
|
return disas_cp14_write(env, s, insn);
|
|
case 15:
|
|
return disas_cp15_insn (env, s, insn);
|
|
default:
|
|
board:
|
|
/* Unknown coprocessor. See if the board has hooked it. */
|
|
return disas_cp_insn (env, s, insn);
|
|
}
|
|
}
|
|
|
|
|
|
/* Store a 64-bit value to a register pair. Clobbers val. */
|
|
static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val)
|
|
{
|
|
TCGv tmp;
|
|
tmp = new_tmp();
|
|
tcg_gen_trunc_i64_i32(tmp, val);
|
|
store_reg(s, rlow, tmp);
|
|
tmp = new_tmp();
|
|
tcg_gen_shri_i64(val, val, 32);
|
|
tcg_gen_trunc_i64_i32(tmp, val);
|
|
store_reg(s, rhigh, tmp);
|
|
}
|
|
|
|
/* load a 32-bit value from a register and perform a 64-bit accumulate. */
|
|
static void gen_addq_lo(DisasContext *s, TCGv_i64 val, int rlow)
|
|
{
|
|
TCGv_i64 tmp;
|
|
TCGv tmp2;
|
|
|
|
/* Load value and extend to 64 bits. */
|
|
tmp = tcg_temp_new_i64();
|
|
tmp2 = load_reg(s, rlow);
|
|
tcg_gen_extu_i32_i64(tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
tcg_gen_add_i64(val, val, tmp);
|
|
tcg_temp_free_i64(tmp);
|
|
}
|
|
|
|
/* load and add a 64-bit value from a register pair. */
|
|
static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh)
|
|
{
|
|
TCGv_i64 tmp;
|
|
TCGv tmpl;
|
|
TCGv tmph;
|
|
|
|
/* Load 64-bit value rd:rn. */
|
|
tmpl = load_reg(s, rlow);
|
|
tmph = load_reg(s, rhigh);
|
|
tmp = tcg_temp_new_i64();
|
|
tcg_gen_concat_i32_i64(tmp, tmpl, tmph);
|
|
dead_tmp(tmpl);
|
|
dead_tmp(tmph);
|
|
tcg_gen_add_i64(val, val, tmp);
|
|
tcg_temp_free_i64(tmp);
|
|
}
|
|
|
|
/* Set N and Z flags from a 64-bit value. */
|
|
static void gen_logicq_cc(TCGv_i64 val)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
gen_helper_logicq_cc(tmp, val);
|
|
gen_logic_CC(tmp);
|
|
dead_tmp(tmp);
|
|
}
|
|
|
|
static void disas_arm_insn(CPUState * env, DisasContext *s)
|
|
{
|
|
unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh;
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
TCGv tmp3;
|
|
TCGv addr;
|
|
TCGv_i64 tmp64;
|
|
|
|
insn = ldl_code(s->pc);
|
|
s->pc += 4;
|
|
|
|
/* M variants do not implement ARM mode. */
|
|
if (IS_M(env))
|
|
goto illegal_op;
|
|
cond = insn >> 28;
|
|
if (cond == 0xf){
|
|
/* Unconditional instructions. */
|
|
if (((insn >> 25) & 7) == 1) {
|
|
/* NEON Data processing. */
|
|
if (!arm_feature(env, ARM_FEATURE_NEON))
|
|
goto illegal_op;
|
|
|
|
if (disas_neon_data_insn(env, s, insn))
|
|
goto illegal_op;
|
|
return;
|
|
}
|
|
if ((insn & 0x0f100000) == 0x04000000) {
|
|
/* NEON load/store. */
|
|
if (!arm_feature(env, ARM_FEATURE_NEON))
|
|
goto illegal_op;
|
|
|
|
if (disas_neon_ls_insn(env, s, insn))
|
|
goto illegal_op;
|
|
return;
|
|
}
|
|
if ((insn & 0x0d70f000) == 0x0550f000)
|
|
return; /* PLD */
|
|
else if ((insn & 0x0ffffdff) == 0x01010000) {
|
|
ARCH(6);
|
|
/* setend */
|
|
if (insn & (1 << 9)) {
|
|
/* BE8 mode not implemented. */
|
|
goto illegal_op;
|
|
}
|
|
return;
|
|
} else if ((insn & 0x0fffff00) == 0x057ff000) {
|
|
switch ((insn >> 4) & 0xf) {
|
|
case 1: /* clrex */
|
|
ARCH(6K);
|
|
gen_helper_clrex(cpu_env);
|
|
return;
|
|
case 4: /* dsb */
|
|
case 5: /* dmb */
|
|
case 6: /* isb */
|
|
ARCH(7);
|
|
/* We don't emulate caches so these are a no-op. */
|
|
return;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
} else if ((insn & 0x0e5fffe0) == 0x084d0500) {
|
|
/* srs */
|
|
int32_t offset;
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
ARCH(6);
|
|
op1 = (insn & 0x1f);
|
|
if (op1 == (env->uncached_cpsr & CPSR_M)) {
|
|
addr = load_reg(s, 13);
|
|
} else {
|
|
addr = new_tmp();
|
|
tmp = tcg_const_i32(op1);
|
|
gen_helper_get_r13_banked(addr, cpu_env, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
i = (insn >> 23) & 3;
|
|
switch (i) {
|
|
case 0: offset = -4; break; /* DA */
|
|
case 1: offset = 0; break; /* IA */
|
|
case 2: offset = -8; break; /* DB */
|
|
case 3: offset = 4; break; /* IB */
|
|
default: abort();
|
|
}
|
|
if (offset)
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
tmp = load_reg(s, 14);
|
|
gen_st32(tmp, addr, 0);
|
|
tmp = load_cpu_field(spsr);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
gen_st32(tmp, addr, 0);
|
|
if (insn & (1 << 21)) {
|
|
/* Base writeback. */
|
|
switch (i) {
|
|
case 0: offset = -8; break;
|
|
case 1: offset = 4; break;
|
|
case 2: offset = -4; break;
|
|
case 3: offset = 0; break;
|
|
default: abort();
|
|
}
|
|
if (offset)
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
if (op1 == (env->uncached_cpsr & CPSR_M)) {
|
|
store_reg(s, 13, addr);
|
|
} else {
|
|
tmp = tcg_const_i32(op1);
|
|
gen_helper_set_r13_banked(cpu_env, tmp, addr);
|
|
tcg_temp_free_i32(tmp);
|
|
dead_tmp(addr);
|
|
}
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
} else if ((insn & 0x0e5fffe0) == 0x081d0a00) {
|
|
/* rfe */
|
|
int32_t offset;
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
ARCH(6);
|
|
rn = (insn >> 16) & 0xf;
|
|
addr = load_reg(s, rn);
|
|
i = (insn >> 23) & 3;
|
|
switch (i) {
|
|
case 0: offset = -4; break; /* DA */
|
|
case 1: offset = 0; break; /* IA */
|
|
case 2: offset = -8; break; /* DB */
|
|
case 3: offset = 4; break; /* IB */
|
|
default: abort();
|
|
}
|
|
if (offset)
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
/* Load PC into tmp and CPSR into tmp2. */
|
|
tmp = gen_ld32(addr, 0);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp2 = gen_ld32(addr, 0);
|
|
if (insn & (1 << 21)) {
|
|
/* Base writeback. */
|
|
switch (i) {
|
|
case 0: offset = -8; break;
|
|
case 1: offset = 4; break;
|
|
case 2: offset = -4; break;
|
|
case 3: offset = 0; break;
|
|
default: abort();
|
|
}
|
|
if (offset)
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
gen_rfe(s, tmp, tmp2);
|
|
return;
|
|
} else if ((insn & 0x0e000000) == 0x0a000000) {
|
|
/* branch link and change to thumb (blx <offset>) */
|
|
int32_t offset;
|
|
|
|
val = (uint32_t)s->pc;
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
store_reg(s, 14, tmp);
|
|
/* Sign-extend the 24-bit offset */
|
|
offset = (((int32_t)insn) << 8) >> 8;
|
|
/* offset * 4 + bit24 * 2 + (thumb bit) */
|
|
val += (offset << 2) | ((insn >> 23) & 2) | 1;
|
|
/* pipeline offset */
|
|
val += 4;
|
|
gen_bx_im(s, val);
|
|
return;
|
|
} else if ((insn & 0x0e000f00) == 0x0c000100) {
|
|
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
|
/* iWMMXt register transfer. */
|
|
if (env->cp15.c15_cpar & (1 << 1))
|
|
if (!disas_iwmmxt_insn(env, s, insn))
|
|
return;
|
|
}
|
|
} else if ((insn & 0x0fe00000) == 0x0c400000) {
|
|
/* Coprocessor double register transfer. */
|
|
} else if ((insn & 0x0f000010) == 0x0e000010) {
|
|
/* Additional coprocessor register transfer. */
|
|
} else if ((insn & 0x0ff10020) == 0x01000000) {
|
|
uint32_t mask;
|
|
uint32_t val;
|
|
/* cps (privileged) */
|
|
if (IS_USER(s))
|
|
return;
|
|
mask = val = 0;
|
|
if (insn & (1 << 19)) {
|
|
if (insn & (1 << 8))
|
|
mask |= CPSR_A;
|
|
if (insn & (1 << 7))
|
|
mask |= CPSR_I;
|
|
if (insn & (1 << 6))
|
|
mask |= CPSR_F;
|
|
if (insn & (1 << 18))
|
|
val |= mask;
|
|
}
|
|
if (insn & (1 << 17)) {
|
|
mask |= CPSR_M;
|
|
val |= (insn & 0x1f);
|
|
}
|
|
if (mask) {
|
|
gen_set_psr_im(s, mask, 0, val);
|
|
}
|
|
return;
|
|
}
|
|
goto illegal_op;
|
|
}
|
|
if (cond != 0xe) {
|
|
/* if not always execute, we generate a conditional jump to
|
|
next instruction */
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc(cond ^ 1, s->condlabel);
|
|
s->condjmp = 1;
|
|
}
|
|
if ((insn & 0x0f900000) == 0x03000000) {
|
|
if ((insn & (1 << 21)) == 0) {
|
|
ARCH(6T2);
|
|
rd = (insn >> 12) & 0xf;
|
|
val = ((insn >> 4) & 0xf000) | (insn & 0xfff);
|
|
if ((insn & (1 << 22)) == 0) {
|
|
/* MOVW */
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
} else {
|
|
/* MOVT */
|
|
tmp = load_reg(s, rd);
|
|
tcg_gen_ext16u_i32(tmp, tmp);
|
|
tcg_gen_ori_i32(tmp, tmp, val << 16);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
if (((insn >> 12) & 0xf) != 0xf)
|
|
goto illegal_op;
|
|
if (((insn >> 16) & 0xf) == 0) {
|
|
gen_nop_hint(s, insn & 0xff);
|
|
} else {
|
|
/* CPSR = immediate */
|
|
val = insn & 0xff;
|
|
shift = ((insn >> 8) & 0xf) * 2;
|
|
if (shift)
|
|
val = (val >> shift) | (val << (32 - shift));
|
|
i = ((insn & (1 << 22)) != 0);
|
|
if (gen_set_psr_im(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, val))
|
|
goto illegal_op;
|
|
}
|
|
}
|
|
} else if ((insn & 0x0f900000) == 0x01000000
|
|
&& (insn & 0x00000090) != 0x00000090) {
|
|
/* miscellaneous instructions */
|
|
op1 = (insn >> 21) & 3;
|
|
sh = (insn >> 4) & 0xf;
|
|
rm = insn & 0xf;
|
|
switch (sh) {
|
|
case 0x0: /* move program status register */
|
|
if (op1 & 1) {
|
|
/* PSR = reg */
|
|
tmp = load_reg(s, rm);
|
|
i = ((op1 & 2) != 0);
|
|
if (gen_set_psr(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, tmp))
|
|
goto illegal_op;
|
|
} else {
|
|
/* reg = PSR */
|
|
rd = (insn >> 12) & 0xf;
|
|
if (op1 & 2) {
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
tmp = load_cpu_field(spsr);
|
|
} else {
|
|
tmp = new_tmp();
|
|
gen_helper_cpsr_read(tmp);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
break;
|
|
case 0x1:
|
|
if (op1 == 1) {
|
|
/* branch/exchange thumb (bx). */
|
|
tmp = load_reg(s, rm);
|
|
gen_bx(s, tmp);
|
|
} else if (op1 == 3) {
|
|
/* clz */
|
|
rd = (insn >> 12) & 0xf;
|
|
tmp = load_reg(s, rm);
|
|
gen_helper_clz(tmp, tmp);
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 0x2:
|
|
if (op1 == 1) {
|
|
ARCH(5J); /* bxj */
|
|
/* Trivial implementation equivalent to bx. */
|
|
tmp = load_reg(s, rm);
|
|
gen_bx(s, tmp);
|
|
} else {
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 0x3:
|
|
if (op1 != 1)
|
|
goto illegal_op;
|
|
|
|
/* branch link/exchange thumb (blx) */
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, s->pc);
|
|
store_reg(s, 14, tmp2);
|
|
gen_bx(s, tmp);
|
|
break;
|
|
case 0x5: /* saturating add/subtract */
|
|
rd = (insn >> 12) & 0xf;
|
|
rn = (insn >> 16) & 0xf;
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = load_reg(s, rn);
|
|
if (op1 & 2)
|
|
gen_helper_double_saturate(tmp2, tmp2);
|
|
if (op1 & 1)
|
|
gen_helper_sub_saturate(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_add_saturate(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 7: /* bkpt */
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc - 4);
|
|
gen_exception(EXCP_BKPT);
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
case 0x8: /* signed multiply */
|
|
case 0xa:
|
|
case 0xc:
|
|
case 0xe:
|
|
rs = (insn >> 8) & 0xf;
|
|
rn = (insn >> 12) & 0xf;
|
|
rd = (insn >> 16) & 0xf;
|
|
if (op1 == 1) {
|
|
/* (32 * 16) >> 16 */
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = load_reg(s, rs);
|
|
if (sh & 4)
|
|
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
|
else
|
|
gen_sxth(tmp2);
|
|
tmp64 = gen_muls_i64_i32(tmp, tmp2);
|
|
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
|
tmp = new_tmp();
|
|
tcg_gen_trunc_i64_i32(tmp, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
if ((sh & 2) == 0) {
|
|
tmp2 = load_reg(s, rn);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* 16 * 16 */
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = load_reg(s, rs);
|
|
gen_mulxy(tmp, tmp2, sh & 2, sh & 4);
|
|
dead_tmp(tmp2);
|
|
if (op1 == 2) {
|
|
tmp64 = tcg_temp_new_i64();
|
|
tcg_gen_ext_i32_i64(tmp64, tmp);
|
|
dead_tmp(tmp);
|
|
gen_addq(s, tmp64, rn, rd);
|
|
gen_storeq_reg(s, rn, rd, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
if (op1 == 0) {
|
|
tmp2 = load_reg(s, rn);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
} else if (((insn & 0x0e000000) == 0 &&
|
|
(insn & 0x00000090) != 0x90) ||
|
|
((insn & 0x0e000000) == (1 << 25))) {
|
|
int set_cc, logic_cc, shiftop;
|
|
|
|
op1 = (insn >> 21) & 0xf;
|
|
set_cc = (insn >> 20) & 1;
|
|
logic_cc = table_logic_cc[op1] & set_cc;
|
|
|
|
/* data processing instruction */
|
|
if (insn & (1 << 25)) {
|
|
/* immediate operand */
|
|
val = insn & 0xff;
|
|
shift = ((insn >> 8) & 0xf) * 2;
|
|
if (shift) {
|
|
val = (val >> shift) | (val << (32 - shift));
|
|
}
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, val);
|
|
if (logic_cc && shift) {
|
|
gen_set_CF_bit31(tmp2);
|
|
}
|
|
} else {
|
|
/* register */
|
|
rm = (insn) & 0xf;
|
|
tmp2 = load_reg(s, rm);
|
|
shiftop = (insn >> 5) & 3;
|
|
if (!(insn & (1 << 4))) {
|
|
shift = (insn >> 7) & 0x1f;
|
|
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc);
|
|
} else {
|
|
rs = (insn >> 8) & 0xf;
|
|
tmp = load_reg(s, rs);
|
|
gen_arm_shift_reg(tmp2, shiftop, tmp, logic_cc);
|
|
}
|
|
}
|
|
if (op1 != 0x0f && op1 != 0x0d) {
|
|
rn = (insn >> 16) & 0xf;
|
|
tmp = load_reg(s, rn);
|
|
} else {
|
|
TCGV_UNUSED(tmp);
|
|
}
|
|
rd = (insn >> 12) & 0xf;
|
|
switch(op1) {
|
|
case 0x00:
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x01:
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x02:
|
|
if (set_cc && rd == 15) {
|
|
/* SUBS r15, ... is used for exception return. */
|
|
if (IS_USER(s)) {
|
|
goto illegal_op;
|
|
}
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
gen_exception_return(s, tmp);
|
|
} else {
|
|
if (set_cc) {
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
}
|
|
break;
|
|
case 0x03:
|
|
if (set_cc) {
|
|
gen_helper_sub_cc(tmp, tmp2, tmp);
|
|
} else {
|
|
tcg_gen_sub_i32(tmp, tmp2, tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x04:
|
|
if (set_cc) {
|
|
gen_helper_add_cc(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x05:
|
|
if (set_cc) {
|
|
gen_helper_adc_cc(tmp, tmp, tmp2);
|
|
} else {
|
|
gen_add_carry(tmp, tmp, tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x06:
|
|
if (set_cc) {
|
|
gen_helper_sbc_cc(tmp, tmp, tmp2);
|
|
} else {
|
|
gen_sub_carry(tmp, tmp, tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x07:
|
|
if (set_cc) {
|
|
gen_helper_sbc_cc(tmp, tmp2, tmp);
|
|
} else {
|
|
gen_sub_carry(tmp, tmp2, tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x08:
|
|
if (set_cc) {
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
gen_logic_CC(tmp);
|
|
}
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x09:
|
|
if (set_cc) {
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
gen_logic_CC(tmp);
|
|
}
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x0a:
|
|
if (set_cc) {
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x0b:
|
|
if (set_cc) {
|
|
gen_helper_add_cc(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 0x0c:
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 0x0d:
|
|
if (logic_cc && rd == 15) {
|
|
/* MOVS r15, ... is used for exception return. */
|
|
if (IS_USER(s)) {
|
|
goto illegal_op;
|
|
}
|
|
gen_exception_return(s, tmp2);
|
|
} else {
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp2);
|
|
}
|
|
break;
|
|
case 0x0e:
|
|
tcg_gen_andc_i32(tmp, tmp, tmp2);
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
default:
|
|
case 0x0f:
|
|
tcg_gen_not_i32(tmp2, tmp2);
|
|
if (logic_cc) {
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
store_reg_bx(env, s, rd, tmp2);
|
|
break;
|
|
}
|
|
if (op1 != 0x0f && op1 != 0x0d) {
|
|
dead_tmp(tmp2);
|
|
}
|
|
} else {
|
|
/* other instructions */
|
|
op1 = (insn >> 24) & 0xf;
|
|
switch(op1) {
|
|
case 0x0:
|
|
case 0x1:
|
|
/* multiplies, extra load/stores */
|
|
sh = (insn >> 5) & 3;
|
|
if (sh == 0) {
|
|
if (op1 == 0x0) {
|
|
rd = (insn >> 16) & 0xf;
|
|
rn = (insn >> 12) & 0xf;
|
|
rs = (insn >> 8) & 0xf;
|
|
rm = (insn) & 0xf;
|
|
op1 = (insn >> 20) & 0xf;
|
|
switch (op1) {
|
|
case 0: case 1: case 2: case 3: case 6:
|
|
/* 32 bit mul */
|
|
tmp = load_reg(s, rs);
|
|
tmp2 = load_reg(s, rm);
|
|
tcg_gen_mul_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
if (insn & (1 << 22)) {
|
|
/* Subtract (mls) */
|
|
ARCH(6T2);
|
|
tmp2 = load_reg(s, rn);
|
|
tcg_gen_sub_i32(tmp, tmp2, tmp);
|
|
dead_tmp(tmp2);
|
|
} else if (insn & (1 << 21)) {
|
|
/* Add */
|
|
tmp2 = load_reg(s, rn);
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
if (insn & (1 << 20))
|
|
gen_logic_CC(tmp);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
default:
|
|
/* 64 bit mul */
|
|
tmp = load_reg(s, rs);
|
|
tmp2 = load_reg(s, rm);
|
|
if (insn & (1 << 22))
|
|
tmp64 = gen_muls_i64_i32(tmp, tmp2);
|
|
else
|
|
tmp64 = gen_mulu_i64_i32(tmp, tmp2);
|
|
if (insn & (1 << 21)) /* mult accumulate */
|
|
gen_addq(s, tmp64, rn, rd);
|
|
if (!(insn & (1 << 23))) { /* double accumulate */
|
|
ARCH(6);
|
|
gen_addq_lo(s, tmp64, rn);
|
|
gen_addq_lo(s, tmp64, rd);
|
|
}
|
|
if (insn & (1 << 20))
|
|
gen_logicq_cc(tmp64);
|
|
gen_storeq_reg(s, rn, rd, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
break;
|
|
}
|
|
} else {
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
if (insn & (1 << 23)) {
|
|
/* load/store exclusive */
|
|
op1 = (insn >> 21) & 0x3;
|
|
if (op1)
|
|
ARCH(6K);
|
|
else
|
|
ARCH(6);
|
|
addr = tcg_temp_local_new_i32();
|
|
load_reg_var(s, addr, rn);
|
|
if (insn & (1 << 20)) {
|
|
gen_helper_mark_exclusive(cpu_env, addr);
|
|
switch (op1) {
|
|
case 0: /* ldrex */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
break;
|
|
case 1: /* ldrexd */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
rd++;
|
|
break;
|
|
case 2: /* ldrexb */
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
break;
|
|
case 3: /* ldrexh */
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
int label = gen_new_label();
|
|
rm = insn & 0xf;
|
|
tmp2 = tcg_temp_local_new_i32();
|
|
gen_helper_test_exclusive(tmp2, cpu_env, addr);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp2, 0, label);
|
|
tmp = load_reg(s,rm);
|
|
switch (op1) {
|
|
case 0: /* strex */
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 1: /* strexd */
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = load_reg(s, rm + 1);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 2: /* strexb */
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 3: /* strexh */
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
gen_set_label(label);
|
|
tcg_gen_mov_i32(cpu_R[rd], tmp2);
|
|
tcg_temp_free(tmp2);
|
|
}
|
|
tcg_temp_free(addr);
|
|
} else {
|
|
/* SWP instruction */
|
|
rm = (insn) & 0xf;
|
|
|
|
/* ??? This is not really atomic. However we know
|
|
we never have multiple CPUs running in parallel,
|
|
so it is good enough. */
|
|
addr = load_reg(s, rn);
|
|
tmp = load_reg(s, rm);
|
|
if (insn & (1 << 22)) {
|
|
tmp2 = gen_ld8u(addr, IS_USER(s));
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
} else {
|
|
tmp2 = gen_ld32(addr, IS_USER(s));
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
store_reg(s, rd, tmp2);
|
|
}
|
|
}
|
|
} else {
|
|
int address_offset;
|
|
int load;
|
|
/* Misc load/store */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
addr = load_reg(s, rn);
|
|
if (insn & (1 << 24))
|
|
gen_add_datah_offset(s, insn, 0, addr);
|
|
address_offset = 0;
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
switch(sh) {
|
|
case 1:
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
break;
|
|
case 2:
|
|
tmp = gen_ld8s(addr, IS_USER(s));
|
|
break;
|
|
default:
|
|
case 3:
|
|
tmp = gen_ld16s(addr, IS_USER(s));
|
|
break;
|
|
}
|
|
load = 1;
|
|
} else if (sh & 2) {
|
|
/* doubleword */
|
|
if (sh & 1) {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = load_reg(s, rd + 1);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
load = 0;
|
|
} else {
|
|
/* load */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
rd++;
|
|
load = 1;
|
|
}
|
|
address_offset = -4;
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
load = 0;
|
|
}
|
|
/* Perform base writeback before the loaded value to
|
|
ensure correct behavior with overlapping index registers.
|
|
ldrd with base writeback is is undefined if the
|
|
destination and index registers overlap. */
|
|
if (!(insn & (1 << 24))) {
|
|
gen_add_datah_offset(s, insn, address_offset, addr);
|
|
store_reg(s, rn, addr);
|
|
} else if (insn & (1 << 21)) {
|
|
if (address_offset)
|
|
tcg_gen_addi_i32(addr, addr, address_offset);
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
if (load) {
|
|
/* Complete the load. */
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 0x4:
|
|
case 0x5:
|
|
goto do_ldst;
|
|
case 0x6:
|
|
case 0x7:
|
|
if (insn & (1 << 4)) {
|
|
ARCH(6);
|
|
/* Armv6 Media instructions. */
|
|
rm = insn & 0xf;
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
rs = (insn >> 8) & 0xf;
|
|
switch ((insn >> 23) & 3) {
|
|
case 0: /* Parallel add/subtract. */
|
|
op1 = (insn >> 20) & 7;
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
sh = (insn >> 5) & 7;
|
|
if ((op1 & 3) == 0 || sh == 5 || sh == 6)
|
|
goto illegal_op;
|
|
gen_arm_parallel_addsub(op1, sh, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 1:
|
|
if ((insn & 0x00700020) == 0) {
|
|
/* Halfword pack. */
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
shift = (insn >> 7) & 0x1f;
|
|
if (insn & (1 << 6)) {
|
|
/* pkhtb */
|
|
if (shift == 0)
|
|
shift = 31;
|
|
tcg_gen_sari_i32(tmp2, tmp2, shift);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xffff0000);
|
|
tcg_gen_ext16u_i32(tmp2, tmp2);
|
|
} else {
|
|
/* pkhbt */
|
|
if (shift)
|
|
tcg_gen_shli_i32(tmp2, tmp2, shift);
|
|
tcg_gen_ext16u_i32(tmp, tmp);
|
|
tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
|
|
}
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
} else if ((insn & 0x00200020) == 0x00200000) {
|
|
/* [us]sat */
|
|
tmp = load_reg(s, rm);
|
|
shift = (insn >> 7) & 0x1f;
|
|
if (insn & (1 << 6)) {
|
|
if (shift == 0)
|
|
shift = 31;
|
|
tcg_gen_sari_i32(tmp, tmp, shift);
|
|
} else {
|
|
tcg_gen_shli_i32(tmp, tmp, shift);
|
|
}
|
|
sh = (insn >> 16) & 0x1f;
|
|
if (sh != 0) {
|
|
tmp2 = tcg_const_i32(sh);
|
|
if (insn & (1 << 22))
|
|
gen_helper_usat(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_ssat(tmp, tmp, tmp2);
|
|
tcg_temp_free_i32(tmp2);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else if ((insn & 0x00300fe0) == 0x00200f20) {
|
|
/* [us]sat16 */
|
|
tmp = load_reg(s, rm);
|
|
sh = (insn >> 16) & 0x1f;
|
|
if (sh != 0) {
|
|
tmp2 = tcg_const_i32(sh);
|
|
if (insn & (1 << 22))
|
|
gen_helper_usat16(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_ssat16(tmp, tmp, tmp2);
|
|
tcg_temp_free_i32(tmp2);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else if ((insn & 0x00700fe0) == 0x00000fa0) {
|
|
/* Select bytes. */
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
tmp3 = new_tmp();
|
|
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE));
|
|
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2);
|
|
dead_tmp(tmp3);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
} else if ((insn & 0x000003e0) == 0x00000060) {
|
|
tmp = load_reg(s, rm);
|
|
shift = (insn >> 10) & 3;
|
|
/* ??? In many cases it's not neccessary to do a
|
|
rotate, a shift is sufficient. */
|
|
if (shift != 0)
|
|
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
|
op1 = (insn >> 20) & 7;
|
|
switch (op1) {
|
|
case 0: gen_sxtb16(tmp); break;
|
|
case 2: gen_sxtb(tmp); break;
|
|
case 3: gen_sxth(tmp); break;
|
|
case 4: gen_uxtb16(tmp); break;
|
|
case 6: gen_uxtb(tmp); break;
|
|
case 7: gen_uxth(tmp); break;
|
|
default: goto illegal_op;
|
|
}
|
|
if (rn != 15) {
|
|
tmp2 = load_reg(s, rn);
|
|
if ((op1 & 3) == 0) {
|
|
gen_add16(tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else if ((insn & 0x003f0f60) == 0x003f0f20) {
|
|
/* rev */
|
|
tmp = load_reg(s, rm);
|
|
if (insn & (1 << 22)) {
|
|
if (insn & (1 << 7)) {
|
|
gen_revsh(tmp);
|
|
} else {
|
|
ARCH(6T2);
|
|
gen_helper_rbit(tmp, tmp);
|
|
}
|
|
} else {
|
|
if (insn & (1 << 7))
|
|
gen_rev16(tmp);
|
|
else
|
|
tcg_gen_bswap32_i32(tmp, tmp);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 2: /* Multiplies (Type 3). */
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = load_reg(s, rs);
|
|
if (insn & (1 << 20)) {
|
|
/* Signed multiply most significant [accumulate]. */
|
|
tmp64 = gen_muls_i64_i32(tmp, tmp2);
|
|
if (insn & (1 << 5))
|
|
tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u);
|
|
tcg_gen_shri_i64(tmp64, tmp64, 32);
|
|
tmp = new_tmp();
|
|
tcg_gen_trunc_i64_i32(tmp, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
if (rd != 15) {
|
|
tmp2 = load_reg(s, rd);
|
|
if (insn & (1 << 6)) {
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rn, tmp);
|
|
} else {
|
|
if (insn & (1 << 5))
|
|
gen_swap_half(tmp2);
|
|
gen_smul_dual(tmp, tmp2);
|
|
/* This addition cannot overflow. */
|
|
if (insn & (1 << 6)) {
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp2);
|
|
if (insn & (1 << 22)) {
|
|
/* smlald, smlsld */
|
|
tmp64 = tcg_temp_new_i64();
|
|
tcg_gen_ext_i32_i64(tmp64, tmp);
|
|
dead_tmp(tmp);
|
|
gen_addq(s, tmp64, rd, rn);
|
|
gen_storeq_reg(s, rd, rn, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
/* smuad, smusd, smlad, smlsd */
|
|
if (rd != 15)
|
|
{
|
|
tmp2 = load_reg(s, rd);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rn, tmp);
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7);
|
|
switch (op1) {
|
|
case 0: /* Unsigned sum of absolute differences. */
|
|
ARCH(6);
|
|
tmp = load_reg(s, rm);
|
|
tmp2 = load_reg(s, rs);
|
|
gen_helper_usad8(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
if (rd != 15) {
|
|
tmp2 = load_reg(s, rd);
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rn, tmp);
|
|
break;
|
|
case 0x20: case 0x24: case 0x28: case 0x2c:
|
|
/* Bitfield insert/clear. */
|
|
ARCH(6T2);
|
|
shift = (insn >> 7) & 0x1f;
|
|
i = (insn >> 16) & 0x1f;
|
|
i = i + 1 - shift;
|
|
if (rm == 15) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
} else {
|
|
tmp = load_reg(s, rm);
|
|
}
|
|
if (i != 32) {
|
|
tmp2 = load_reg(s, rd);
|
|
gen_bfi(tmp, tmp2, tmp, shift, (1u << i) - 1);
|
|
dead_tmp(tmp2);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */
|
|
case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */
|
|
ARCH(6T2);
|
|
tmp = load_reg(s, rm);
|
|
shift = (insn >> 7) & 0x1f;
|
|
i = ((insn >> 16) & 0x1f) + 1;
|
|
if (shift + i > 32)
|
|
goto illegal_op;
|
|
if (i < 32) {
|
|
if (op1 & 0x20) {
|
|
gen_ubfx(tmp, shift, (1u << i) - 1);
|
|
} else {
|
|
gen_sbfx(tmp, shift, i);
|
|
}
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
do_ldst:
|
|
/* Check for undefined extension instructions
|
|
* per the ARM Bible IE:
|
|
* xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
|
|
*/
|
|
sh = (0xf << 20) | (0xf << 4);
|
|
if (op1 == 0x7 && ((insn & sh) == sh))
|
|
{
|
|
goto illegal_op;
|
|
}
|
|
/* load/store byte/word */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
tmp2 = load_reg(s, rn);
|
|
i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000);
|
|
if (insn & (1 << 24))
|
|
gen_add_data_offset(s, insn, tmp2);
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
if (insn & (1 << 22)) {
|
|
tmp = gen_ld8u(tmp2, i);
|
|
} else {
|
|
tmp = gen_ld32(tmp2, i);
|
|
}
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
if (insn & (1 << 22))
|
|
gen_st8(tmp, tmp2, i);
|
|
else
|
|
gen_st32(tmp, tmp2, i);
|
|
}
|
|
if (!(insn & (1 << 24))) {
|
|
gen_add_data_offset(s, insn, tmp2);
|
|
store_reg(s, rn, tmp2);
|
|
} else if (insn & (1 << 21)) {
|
|
store_reg(s, rn, tmp2);
|
|
} else {
|
|
dead_tmp(tmp2);
|
|
}
|
|
if (insn & (1 << 20)) {
|
|
/* Complete the load. */
|
|
if (rd == 15)
|
|
gen_bx(s, tmp);
|
|
else
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
break;
|
|
case 0x08:
|
|
case 0x09:
|
|
{
|
|
int j, n, user, loaded_base;
|
|
TCGv loaded_var;
|
|
/* load/store multiple words */
|
|
/* XXX: store correct base if write back */
|
|
user = 0;
|
|
if (insn & (1 << 22)) {
|
|
if (IS_USER(s))
|
|
goto illegal_op; /* only usable in supervisor mode */
|
|
|
|
if ((insn & (1 << 15)) == 0)
|
|
user = 1;
|
|
}
|
|
rn = (insn >> 16) & 0xf;
|
|
addr = load_reg(s, rn);
|
|
|
|
/* compute total size */
|
|
loaded_base = 0;
|
|
TCGV_UNUSED(loaded_var);
|
|
n = 0;
|
|
for(i=0;i<16;i++) {
|
|
if (insn & (1 << i))
|
|
n++;
|
|
}
|
|
/* XXX: test invalid n == 0 case ? */
|
|
if (insn & (1 << 23)) {
|
|
if (insn & (1 << 24)) {
|
|
/* pre increment */
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
} else {
|
|
/* post increment */
|
|
}
|
|
} else {
|
|
if (insn & (1 << 24)) {
|
|
/* pre decrement */
|
|
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
|
} else {
|
|
/* post decrement */
|
|
if (n != 1)
|
|
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
|
|
}
|
|
}
|
|
j = 0;
|
|
for(i=0;i<16;i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
if (i == 15) {
|
|
gen_bx(s, tmp);
|
|
} else if (user) {
|
|
tmp2 = tcg_const_i32(i);
|
|
gen_helper_set_user_reg(tmp2, tmp);
|
|
tcg_temp_free_i32(tmp2);
|
|
dead_tmp(tmp);
|
|
} else if (i == rn) {
|
|
loaded_var = tmp;
|
|
loaded_base = 1;
|
|
} else {
|
|
store_reg(s, i, tmp);
|
|
}
|
|
} else {
|
|
/* store */
|
|
if (i == 15) {
|
|
/* special case: r15 = PC + 8 */
|
|
val = (long)s->pc + 4;
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
} else if (user) {
|
|
tmp = new_tmp();
|
|
tmp2 = tcg_const_i32(i);
|
|
gen_helper_get_user_reg(tmp, tmp2);
|
|
tcg_temp_free_i32(tmp2);
|
|
} else {
|
|
tmp = load_reg(s, i);
|
|
}
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
j++;
|
|
/* no need to add after the last transfer */
|
|
if (j != n)
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* write back */
|
|
if (insn & (1 << 23)) {
|
|
if (insn & (1 << 24)) {
|
|
/* pre increment */
|
|
} else {
|
|
/* post increment */
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
} else {
|
|
if (insn & (1 << 24)) {
|
|
/* pre decrement */
|
|
if (n != 1)
|
|
tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
|
|
} else {
|
|
/* post decrement */
|
|
tcg_gen_addi_i32(addr, addr, -(n * 4));
|
|
}
|
|
}
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
if (loaded_base) {
|
|
store_reg(s, rn, loaded_var);
|
|
}
|
|
if ((insn & (1 << 22)) && !user) {
|
|
/* Restore CPSR from SPSR. */
|
|
tmp = load_cpu_field(spsr);
|
|
gen_set_cpsr(tmp, 0xffffffff);
|
|
dead_tmp(tmp);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
}
|
|
break;
|
|
case 0xa:
|
|
case 0xb:
|
|
{
|
|
int32_t offset;
|
|
|
|
/* branch (and link) */
|
|
val = (int32_t)s->pc;
|
|
if (insn & (1 << 24)) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, val);
|
|
store_reg(s, 14, tmp);
|
|
}
|
|
offset = (((int32_t)insn << 8) >> 8);
|
|
val += (offset << 2) + 4;
|
|
gen_jmp(s, val);
|
|
}
|
|
break;
|
|
case 0xc:
|
|
case 0xd:
|
|
case 0xe:
|
|
/* Coprocessor. */
|
|
if (disas_coproc_insn(env, s, insn))
|
|
goto illegal_op;
|
|
break;
|
|
case 0xf:
|
|
/* swi */
|
|
gen_set_pc_im(s->pc);
|
|
s->is_jmp = DISAS_SWI;
|
|
break;
|
|
default:
|
|
illegal_op:
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc - 4);
|
|
gen_exception(EXCP_UDEF);
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Return true if this is a Thumb-2 logical op. */
|
|
static int
|
|
thumb2_logic_op(int op)
|
|
{
|
|
return (op < 8);
|
|
}
|
|
|
|
/* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero
|
|
then set condition code flags based on the result of the operation.
|
|
If SHIFTER_OUT is nonzero then set the carry flag for logical operations
|
|
to the high bit of T1.
|
|
Returns zero if the opcode is valid. */
|
|
|
|
static int
|
|
gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out, TCGv t0, TCGv t1)
|
|
{
|
|
int logic_cc;
|
|
|
|
logic_cc = 0;
|
|
switch (op) {
|
|
case 0: /* and */
|
|
tcg_gen_and_i32(t0, t0, t1);
|
|
logic_cc = conds;
|
|
break;
|
|
case 1: /* bic */
|
|
tcg_gen_andc_i32(t0, t0, t1);
|
|
logic_cc = conds;
|
|
break;
|
|
case 2: /* orr */
|
|
tcg_gen_or_i32(t0, t0, t1);
|
|
logic_cc = conds;
|
|
break;
|
|
case 3: /* orn */
|
|
tcg_gen_not_i32(t1, t1);
|
|
tcg_gen_or_i32(t0, t0, t1);
|
|
logic_cc = conds;
|
|
break;
|
|
case 4: /* eor */
|
|
tcg_gen_xor_i32(t0, t0, t1);
|
|
logic_cc = conds;
|
|
break;
|
|
case 8: /* add */
|
|
if (conds)
|
|
gen_helper_add_cc(t0, t0, t1);
|
|
else
|
|
tcg_gen_add_i32(t0, t0, t1);
|
|
break;
|
|
case 10: /* adc */
|
|
if (conds)
|
|
gen_helper_adc_cc(t0, t0, t1);
|
|
else
|
|
gen_adc(t0, t1);
|
|
break;
|
|
case 11: /* sbc */
|
|
if (conds)
|
|
gen_helper_sbc_cc(t0, t0, t1);
|
|
else
|
|
gen_sub_carry(t0, t0, t1);
|
|
break;
|
|
case 13: /* sub */
|
|
if (conds)
|
|
gen_helper_sub_cc(t0, t0, t1);
|
|
else
|
|
tcg_gen_sub_i32(t0, t0, t1);
|
|
break;
|
|
case 14: /* rsb */
|
|
if (conds)
|
|
gen_helper_sub_cc(t0, t1, t0);
|
|
else
|
|
tcg_gen_sub_i32(t0, t1, t0);
|
|
break;
|
|
default: /* 5, 6, 7, 9, 12, 15. */
|
|
return 1;
|
|
}
|
|
if (logic_cc) {
|
|
gen_logic_CC(t0);
|
|
if (shifter_out)
|
|
gen_set_CF_bit31(t1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Translate a 32-bit thumb instruction. Returns nonzero if the instruction
|
|
is not legal. */
|
|
static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1)
|
|
{
|
|
uint32_t insn, imm, shift, offset;
|
|
uint32_t rd, rn, rm, rs;
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
TCGv tmp3;
|
|
TCGv addr;
|
|
TCGv_i64 tmp64;
|
|
int op;
|
|
int shiftop;
|
|
int conds;
|
|
int logic_cc;
|
|
|
|
if (!(arm_feature(env, ARM_FEATURE_THUMB2)
|
|
|| arm_feature (env, ARM_FEATURE_M))) {
|
|
/* Thumb-1 cores may need to treat bl and blx as a pair of
|
|
16-bit instructions to get correct prefetch abort behavior. */
|
|
insn = insn_hw1;
|
|
if ((insn & (1 << 12)) == 0) {
|
|
/* Second half of blx. */
|
|
offset = ((insn & 0x7ff) << 1);
|
|
tmp = load_reg(s, 14);
|
|
tcg_gen_addi_i32(tmp, tmp, offset);
|
|
tcg_gen_andi_i32(tmp, tmp, 0xfffffffc);
|
|
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
|
store_reg(s, 14, tmp2);
|
|
gen_bx(s, tmp);
|
|
return 0;
|
|
}
|
|
if (insn & (1 << 11)) {
|
|
/* Second half of bl. */
|
|
offset = ((insn & 0x7ff) << 1) | 1;
|
|
tmp = load_reg(s, 14);
|
|
tcg_gen_addi_i32(tmp, tmp, offset);
|
|
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, s->pc | 1);
|
|
store_reg(s, 14, tmp2);
|
|
gen_bx(s, tmp);
|
|
return 0;
|
|
}
|
|
if ((s->pc & ~TARGET_PAGE_MASK) == 0) {
|
|
/* Instruction spans a page boundary. Implement it as two
|
|
16-bit instructions in case the second half causes an
|
|
prefetch abort. */
|
|
offset = ((int32_t)insn << 21) >> 9;
|
|
tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + offset);
|
|
return 0;
|
|
}
|
|
/* Fall through to 32-bit decode. */
|
|
}
|
|
|
|
insn = lduw_code(s->pc);
|
|
s->pc += 2;
|
|
insn |= (uint32_t)insn_hw1 << 16;
|
|
|
|
if ((insn & 0xf800e800) != 0xf000e800) {
|
|
ARCH(6T2);
|
|
}
|
|
|
|
rn = (insn >> 16) & 0xf;
|
|
rs = (insn >> 12) & 0xf;
|
|
rd = (insn >> 8) & 0xf;
|
|
rm = insn & 0xf;
|
|
switch ((insn >> 25) & 0xf) {
|
|
case 0: case 1: case 2: case 3:
|
|
/* 16-bit instructions. Should never happen. */
|
|
abort();
|
|
case 4:
|
|
if (insn & (1 << 22)) {
|
|
/* Other load/store, table branch. */
|
|
if (insn & 0x01200000) {
|
|
/* Load/store doubleword. */
|
|
if (rn == 15) {
|
|
addr = new_tmp();
|
|
tcg_gen_movi_i32(addr, s->pc & ~3);
|
|
} else {
|
|
addr = load_reg(s, rn);
|
|
}
|
|
offset = (insn & 0xff) * 4;
|
|
if ((insn & (1 << 23)) == 0)
|
|
offset = -offset;
|
|
if (insn & (1 << 24)) {
|
|
tcg_gen_addi_i32(addr, addr, offset);
|
|
offset = 0;
|
|
}
|
|
if (insn & (1 << 20)) {
|
|
/* ldrd */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rs, tmp);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* strd */
|
|
tmp = load_reg(s, rs);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = load_reg(s, rd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* Base writeback. */
|
|
if (rn == 15)
|
|
goto illegal_op;
|
|
tcg_gen_addi_i32(addr, addr, offset - 4);
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
} else if ((insn & (1 << 23)) == 0) {
|
|
/* Load/store exclusive word. */
|
|
addr = tcg_temp_local_new();
|
|
load_reg_var(s, addr, rn);
|
|
if (insn & (1 << 20)) {
|
|
gen_helper_mark_exclusive(cpu_env, addr);
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
int label = gen_new_label();
|
|
tmp2 = tcg_temp_local_new();
|
|
gen_helper_test_exclusive(tmp2, cpu_env, addr);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp2, 0, label);
|
|
tmp = load_reg(s, rs);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
gen_set_label(label);
|
|
tcg_gen_mov_i32(cpu_R[rd], tmp2);
|
|
tcg_temp_free(tmp2);
|
|
}
|
|
tcg_temp_free(addr);
|
|
} else if ((insn & (1 << 6)) == 0) {
|
|
/* Table Branch. */
|
|
if (rn == 15) {
|
|
addr = new_tmp();
|
|
tcg_gen_movi_i32(addr, s->pc);
|
|
} else {
|
|
addr = load_reg(s, rn);
|
|
}
|
|
tmp = load_reg(s, rm);
|
|
tcg_gen_add_i32(addr, addr, tmp);
|
|
if (insn & (1 << 4)) {
|
|
/* tbh */
|
|
tcg_gen_add_i32(addr, addr, tmp);
|
|
dead_tmp(tmp);
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
} else { /* tbb */
|
|
dead_tmp(tmp);
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
tcg_gen_shli_i32(tmp, tmp, 1);
|
|
tcg_gen_addi_i32(tmp, tmp, s->pc);
|
|
store_reg(s, 15, tmp);
|
|
} else {
|
|
/* Load/store exclusive byte/halfword/doubleword. */
|
|
/* ??? These are not really atomic. However we know
|
|
we never have multiple CPUs running in parallel,
|
|
so it is good enough. */
|
|
op = (insn >> 4) & 0x3;
|
|
addr = tcg_temp_local_new();
|
|
load_reg_var(s, addr, rn);
|
|
if (insn & (1 << 20)) {
|
|
gen_helper_mark_exclusive(cpu_env, addr);
|
|
switch (op) {
|
|
case 0:
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
break;
|
|
case 1:
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
break;
|
|
case 3:
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp2 = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp2);
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
store_reg(s, rs, tmp);
|
|
} else {
|
|
int label = gen_new_label();
|
|
tmp2 = tcg_temp_local_new();
|
|
gen_helper_test_exclusive(tmp2, cpu_env, addr);
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp2, 0, label);
|
|
tmp = load_reg(s, rs);
|
|
switch (op) {
|
|
case 0:
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 1:
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 3:
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = load_reg(s, rd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
gen_set_label(label);
|
|
tcg_gen_mov_i32(cpu_R[rm], tmp2);
|
|
tcg_temp_free(tmp2);
|
|
}
|
|
tcg_temp_free(addr);
|
|
}
|
|
} else {
|
|
/* Load/store multiple, RFE, SRS. */
|
|
if (((insn >> 23) & 1) == ((insn >> 24) & 1)) {
|
|
/* Not available in user mode. */
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
if (insn & (1 << 20)) {
|
|
/* rfe */
|
|
addr = load_reg(s, rn);
|
|
if ((insn & (1 << 24)) == 0)
|
|
tcg_gen_addi_i32(addr, addr, -8);
|
|
/* Load PC into tmp and CPSR into tmp2. */
|
|
tmp = gen_ld32(addr, 0);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp2 = gen_ld32(addr, 0);
|
|
if (insn & (1 << 21)) {
|
|
/* Base writeback. */
|
|
if (insn & (1 << 24)) {
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
} else {
|
|
tcg_gen_addi_i32(addr, addr, -4);
|
|
}
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
gen_rfe(s, tmp, tmp2);
|
|
} else {
|
|
/* srs */
|
|
op = (insn & 0x1f);
|
|
if (op == (env->uncached_cpsr & CPSR_M)) {
|
|
addr = load_reg(s, 13);
|
|
} else {
|
|
addr = new_tmp();
|
|
tmp = tcg_const_i32(op);
|
|
gen_helper_get_r13_banked(addr, cpu_env, tmp);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
if ((insn & (1 << 24)) == 0) {
|
|
tcg_gen_addi_i32(addr, addr, -8);
|
|
}
|
|
tmp = load_reg(s, 14);
|
|
gen_st32(tmp, addr, 0);
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
tmp = new_tmp();
|
|
gen_helper_cpsr_read(tmp);
|
|
gen_st32(tmp, addr, 0);
|
|
if (insn & (1 << 21)) {
|
|
if ((insn & (1 << 24)) == 0) {
|
|
tcg_gen_addi_i32(addr, addr, -4);
|
|
} else {
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
if (op == (env->uncached_cpsr & CPSR_M)) {
|
|
store_reg(s, 13, addr);
|
|
} else {
|
|
tmp = tcg_const_i32(op);
|
|
gen_helper_set_r13_banked(cpu_env, tmp, addr);
|
|
tcg_temp_free_i32(tmp);
|
|
}
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
}
|
|
} else {
|
|
int i;
|
|
/* Load/store multiple. */
|
|
addr = load_reg(s, rn);
|
|
offset = 0;
|
|
for (i = 0; i < 16; i++) {
|
|
if (insn & (1 << i))
|
|
offset += 4;
|
|
}
|
|
if (insn & (1 << 24)) {
|
|
tcg_gen_addi_i32(addr, addr, -offset);
|
|
}
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
if ((insn & (1 << i)) == 0)
|
|
continue;
|
|
if (insn & (1 << 20)) {
|
|
/* Load. */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
if (i == 15) {
|
|
gen_bx(s, tmp);
|
|
} else {
|
|
store_reg(s, i, tmp);
|
|
}
|
|
} else {
|
|
/* Store. */
|
|
tmp = load_reg(s, i);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* Base register writeback. */
|
|
if (insn & (1 << 24)) {
|
|
tcg_gen_addi_i32(addr, addr, -offset);
|
|
}
|
|
/* Fault if writeback register is in register list. */
|
|
if (insn & (1 << rn))
|
|
goto illegal_op;
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 5: /* Data processing register constant shift. */
|
|
if (rn == 15) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
}
|
|
tmp2 = load_reg(s, rm);
|
|
op = (insn >> 21) & 0xf;
|
|
shiftop = (insn >> 4) & 3;
|
|
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c);
|
|
conds = (insn & (1 << 20)) != 0;
|
|
logic_cc = (conds && thumb2_logic_op(op));
|
|
gen_arm_shift_im(tmp2, shiftop, shift, logic_cc);
|
|
if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2))
|
|
goto illegal_op;
|
|
dead_tmp(tmp2);
|
|
if (rd != 15) {
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
dead_tmp(tmp);
|
|
}
|
|
break;
|
|
case 13: /* Misc data processing. */
|
|
op = ((insn >> 22) & 6) | ((insn >> 7) & 1);
|
|
if (op < 4 && (insn & 0xf000) != 0xf000)
|
|
goto illegal_op;
|
|
switch (op) {
|
|
case 0: /* Register controlled shift. */
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
if ((insn & 0x70) != 0)
|
|
goto illegal_op;
|
|
op = (insn >> 21) & 3;
|
|
logic_cc = (insn & (1 << 20)) != 0;
|
|
gen_arm_shift_reg(tmp, op, tmp2, logic_cc);
|
|
if (logic_cc)
|
|
gen_logic_CC(tmp);
|
|
store_reg_bx(env, s, rd, tmp);
|
|
break;
|
|
case 1: /* Sign/zero extend. */
|
|
tmp = load_reg(s, rm);
|
|
shift = (insn >> 4) & 3;
|
|
/* ??? In many cases it's not neccessary to do a
|
|
rotate, a shift is sufficient. */
|
|
if (shift != 0)
|
|
tcg_gen_rotri_i32(tmp, tmp, shift * 8);
|
|
op = (insn >> 20) & 7;
|
|
switch (op) {
|
|
case 0: gen_sxth(tmp); break;
|
|
case 1: gen_uxth(tmp); break;
|
|
case 2: gen_sxtb16(tmp); break;
|
|
case 3: gen_uxtb16(tmp); break;
|
|
case 4: gen_sxtb(tmp); break;
|
|
case 5: gen_uxtb(tmp); break;
|
|
default: goto illegal_op;
|
|
}
|
|
if (rn != 15) {
|
|
tmp2 = load_reg(s, rn);
|
|
if ((op >> 1) == 1) {
|
|
gen_add16(tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 2: /* SIMD add/subtract. */
|
|
op = (insn >> 20) & 7;
|
|
shift = (insn >> 4) & 7;
|
|
if ((op & 3) == 3 || (shift & 3) == 3)
|
|
goto illegal_op;
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
gen_thumb2_parallel_addsub(op, shift, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 3: /* Other data processing. */
|
|
op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7);
|
|
if (op < 4) {
|
|
/* Saturating add/subtract. */
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
if (op & 2)
|
|
gen_helper_double_saturate(tmp, tmp);
|
|
if (op & 1)
|
|
gen_helper_sub_saturate(tmp, tmp2, tmp);
|
|
else
|
|
gen_helper_add_saturate(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
switch (op) {
|
|
case 0x0a: /* rbit */
|
|
gen_helper_rbit(tmp, tmp);
|
|
break;
|
|
case 0x08: /* rev */
|
|
tcg_gen_bswap32_i32(tmp, tmp);
|
|
break;
|
|
case 0x09: /* rev16 */
|
|
gen_rev16(tmp);
|
|
break;
|
|
case 0x0b: /* revsh */
|
|
gen_revsh(tmp);
|
|
break;
|
|
case 0x10: /* sel */
|
|
tmp2 = load_reg(s, rm);
|
|
tmp3 = new_tmp();
|
|
tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE));
|
|
gen_helper_sel_flags(tmp, tmp3, tmp, tmp2);
|
|
dead_tmp(tmp3);
|
|
dead_tmp(tmp2);
|
|
break;
|
|
case 0x18: /* clz */
|
|
gen_helper_clz(tmp, tmp);
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */
|
|
op = (insn >> 4) & 0xf;
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
switch ((insn >> 20) & 7) {
|
|
case 0: /* 32 x 32 -> 32 */
|
|
tcg_gen_mul_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
if (rs != 15) {
|
|
tmp2 = load_reg(s, rs);
|
|
if (op)
|
|
tcg_gen_sub_i32(tmp, tmp2, tmp);
|
|
else
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 1: /* 16 x 16 -> 32 */
|
|
gen_mulxy(tmp, tmp2, op & 2, op & 1);
|
|
dead_tmp(tmp2);
|
|
if (rs != 15) {
|
|
tmp2 = load_reg(s, rs);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 2: /* Dual multiply add. */
|
|
case 4: /* Dual multiply subtract. */
|
|
if (op)
|
|
gen_swap_half(tmp2);
|
|
gen_smul_dual(tmp, tmp2);
|
|
/* This addition cannot overflow. */
|
|
if (insn & (1 << 22)) {
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp2);
|
|
if (rs != 15)
|
|
{
|
|
tmp2 = load_reg(s, rs);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 3: /* 32 * 16 -> 32msb */
|
|
if (op)
|
|
tcg_gen_sari_i32(tmp2, tmp2, 16);
|
|
else
|
|
gen_sxth(tmp2);
|
|
tmp64 = gen_muls_i64_i32(tmp, tmp2);
|
|
tcg_gen_shri_i64(tmp64, tmp64, 16);
|
|
tmp = new_tmp();
|
|
tcg_gen_trunc_i64_i32(tmp, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
if (rs != 15)
|
|
{
|
|
tmp2 = load_reg(s, rs);
|
|
gen_helper_add_setq(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 5: case 6: /* 32 * 32 -> 32msb */
|
|
gen_imull(tmp, tmp2);
|
|
if (insn & (1 << 5)) {
|
|
gen_roundqd(tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
} else {
|
|
dead_tmp(tmp);
|
|
tmp = tmp2;
|
|
}
|
|
if (rs != 15) {
|
|
tmp2 = load_reg(s, rs);
|
|
if (insn & (1 << 21)) {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_sub_i32(tmp, tmp2, tmp);
|
|
}
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 7: /* Unsigned sum of absolute differences. */
|
|
gen_helper_usad8(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
if (rs != 15) {
|
|
tmp2 = load_reg(s, rs);
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 6: case 7: /* 64-bit multiply, Divide. */
|
|
op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70);
|
|
tmp = load_reg(s, rn);
|
|
tmp2 = load_reg(s, rm);
|
|
if ((op & 0x50) == 0x10) {
|
|
/* sdiv, udiv */
|
|
if (!arm_feature(env, ARM_FEATURE_DIV))
|
|
goto illegal_op;
|
|
if (op & 0x20)
|
|
gen_helper_udiv(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_sdiv(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
} else if ((op & 0xe) == 0xc) {
|
|
/* Dual multiply accumulate long. */
|
|
if (op & 1)
|
|
gen_swap_half(tmp2);
|
|
gen_smul_dual(tmp, tmp2);
|
|
if (op & 0x10) {
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
} else {
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp2);
|
|
/* BUGFIX */
|
|
tmp64 = tcg_temp_new_i64();
|
|
tcg_gen_ext_i32_i64(tmp64, tmp);
|
|
dead_tmp(tmp);
|
|
gen_addq(s, tmp64, rs, rd);
|
|
gen_storeq_reg(s, rs, rd, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
} else {
|
|
if (op & 0x20) {
|
|
/* Unsigned 64-bit multiply */
|
|
tmp64 = gen_mulu_i64_i32(tmp, tmp2);
|
|
} else {
|
|
if (op & 8) {
|
|
/* smlalxy */
|
|
gen_mulxy(tmp, tmp2, op & 2, op & 1);
|
|
dead_tmp(tmp2);
|
|
tmp64 = tcg_temp_new_i64();
|
|
tcg_gen_ext_i32_i64(tmp64, tmp);
|
|
dead_tmp(tmp);
|
|
} else {
|
|
/* Signed 64-bit multiply */
|
|
tmp64 = gen_muls_i64_i32(tmp, tmp2);
|
|
}
|
|
}
|
|
if (op & 4) {
|
|
/* umaal */
|
|
gen_addq_lo(s, tmp64, rs);
|
|
gen_addq_lo(s, tmp64, rd);
|
|
} else if (op & 0x40) {
|
|
/* 64-bit accumulate. */
|
|
gen_addq(s, tmp64, rs, rd);
|
|
}
|
|
gen_storeq_reg(s, rs, rd, tmp64);
|
|
tcg_temp_free_i64(tmp64);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
case 6: case 7: case 14: case 15:
|
|
/* Coprocessor. */
|
|
if (((insn >> 24) & 3) == 3) {
|
|
/* Translate into the equivalent ARM encoding. */
|
|
insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4);
|
|
if (disas_neon_data_insn(env, s, insn))
|
|
goto illegal_op;
|
|
} else {
|
|
if (insn & (1 << 28))
|
|
goto illegal_op;
|
|
if (disas_coproc_insn (env, s, insn))
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 8: case 9: case 10: case 11:
|
|
if (insn & (1 << 15)) {
|
|
/* Branches, misc control. */
|
|
if (insn & 0x5000) {
|
|
/* Unconditional branch. */
|
|
/* signextend(hw1[10:0]) -> offset[:12]. */
|
|
offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff;
|
|
/* hw1[10:0] -> offset[11:1]. */
|
|
offset |= (insn & 0x7ff) << 1;
|
|
/* (~hw2[13, 11] ^ offset[24]) -> offset[23,22]
|
|
offset[24:22] already have the same value because of the
|
|
sign extension above. */
|
|
offset ^= ((~insn) & (1 << 13)) << 10;
|
|
offset ^= ((~insn) & (1 << 11)) << 11;
|
|
|
|
if (insn & (1 << 14)) {
|
|
/* Branch and link. */
|
|
tcg_gen_movi_i32(cpu_R[14], s->pc | 1);
|
|
}
|
|
|
|
offset += s->pc;
|
|
if (insn & (1 << 12)) {
|
|
/* b/bl */
|
|
gen_jmp(s, offset);
|
|
} else {
|
|
/* blx */
|
|
offset &= ~(uint32_t)2;
|
|
gen_bx_im(s, offset);
|
|
}
|
|
} else if (((insn >> 23) & 7) == 7) {
|
|
/* Misc control */
|
|
if (insn & (1 << 13))
|
|
goto illegal_op;
|
|
|
|
if (insn & (1 << 26)) {
|
|
/* Secure monitor call (v6Z) */
|
|
goto illegal_op; /* not implemented. */
|
|
} else {
|
|
op = (insn >> 20) & 7;
|
|
switch (op) {
|
|
case 0: /* msr cpsr. */
|
|
if (IS_M(env)) {
|
|
tmp = load_reg(s, rn);
|
|
addr = tcg_const_i32(insn & 0xff);
|
|
gen_helper_v7m_msr(cpu_env, addr, tmp);
|
|
tcg_temp_free_i32(addr);
|
|
dead_tmp(tmp);
|
|
gen_lookup_tb(s);
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case 1: /* msr spsr. */
|
|
if (IS_M(env))
|
|
goto illegal_op;
|
|
tmp = load_reg(s, rn);
|
|
if (gen_set_psr(s,
|
|
msr_mask(env, s, (insn >> 8) & 0xf, op == 1),
|
|
op == 1, tmp))
|
|
goto illegal_op;
|
|
break;
|
|
case 2: /* cps, nop-hint. */
|
|
if (((insn >> 8) & 7) == 0) {
|
|
gen_nop_hint(s, insn & 0xff);
|
|
}
|
|
/* Implemented as NOP in user mode. */
|
|
if (IS_USER(s))
|
|
break;
|
|
offset = 0;
|
|
imm = 0;
|
|
if (insn & (1 << 10)) {
|
|
if (insn & (1 << 7))
|
|
offset |= CPSR_A;
|
|
if (insn & (1 << 6))
|
|
offset |= CPSR_I;
|
|
if (insn & (1 << 5))
|
|
offset |= CPSR_F;
|
|
if (insn & (1 << 9))
|
|
imm = CPSR_A | CPSR_I | CPSR_F;
|
|
}
|
|
if (insn & (1 << 8)) {
|
|
offset |= 0x1f;
|
|
imm |= (insn & 0x1f);
|
|
}
|
|
if (offset) {
|
|
gen_set_psr_im(s, offset, 0, imm);
|
|
}
|
|
break;
|
|
case 3: /* Special control operations. */
|
|
op = (insn >> 4) & 0xf;
|
|
switch (op) {
|
|
case 2: /* clrex */
|
|
gen_helper_clrex(cpu_env);
|
|
break;
|
|
case 4: /* dsb */
|
|
case 5: /* dmb */
|
|
case 6: /* isb */
|
|
/* These execute as NOPs. */
|
|
ARCH(7);
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 4: /* bxj */
|
|
/* Trivial implementation equivalent to bx. */
|
|
tmp = load_reg(s, rn);
|
|
gen_bx(s, tmp);
|
|
break;
|
|
case 5: /* Exception return. */
|
|
/* Unpredictable in user mode. */
|
|
goto illegal_op;
|
|
case 6: /* mrs cpsr. */
|
|
tmp = new_tmp();
|
|
if (IS_M(env)) {
|
|
addr = tcg_const_i32(insn & 0xff);
|
|
gen_helper_v7m_mrs(tmp, cpu_env, addr);
|
|
tcg_temp_free_i32(addr);
|
|
} else {
|
|
gen_helper_cpsr_read(tmp);
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 7: /* mrs spsr. */
|
|
/* Not accessible in user mode. */
|
|
if (IS_USER(s) || IS_M(env))
|
|
goto illegal_op;
|
|
tmp = load_cpu_field(spsr);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
/* Conditional branch. */
|
|
op = (insn >> 22) & 0xf;
|
|
/* Generate a conditional jump to next instruction. */
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc(op ^ 1, s->condlabel);
|
|
s->condjmp = 1;
|
|
|
|
/* offset[11:1] = insn[10:0] */
|
|
offset = (insn & 0x7ff) << 1;
|
|
/* offset[17:12] = insn[21:16]. */
|
|
offset |= (insn & 0x003f0000) >> 4;
|
|
/* offset[31:20] = insn[26]. */
|
|
offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11;
|
|
/* offset[18] = insn[13]. */
|
|
offset |= (insn & (1 << 13)) << 5;
|
|
/* offset[19] = insn[11]. */
|
|
offset |= (insn & (1 << 11)) << 8;
|
|
|
|
/* jump to the offset */
|
|
gen_jmp(s, s->pc + offset);
|
|
}
|
|
} else {
|
|
/* Data processing immediate. */
|
|
if (insn & (1 << 25)) {
|
|
if (insn & (1 << 24)) {
|
|
if (insn & (1 << 20))
|
|
goto illegal_op;
|
|
/* Bitfield/Saturate. */
|
|
op = (insn >> 21) & 7;
|
|
imm = insn & 0x1f;
|
|
shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c);
|
|
if (rn == 15) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
}
|
|
switch (op) {
|
|
case 2: /* Signed bitfield extract. */
|
|
imm++;
|
|
if (shift + imm > 32)
|
|
goto illegal_op;
|
|
if (imm < 32)
|
|
gen_sbfx(tmp, shift, imm);
|
|
break;
|
|
case 6: /* Unsigned bitfield extract. */
|
|
imm++;
|
|
if (shift + imm > 32)
|
|
goto illegal_op;
|
|
if (imm < 32)
|
|
gen_ubfx(tmp, shift, (1u << imm) - 1);
|
|
break;
|
|
case 3: /* Bitfield insert/clear. */
|
|
if (imm < shift)
|
|
goto illegal_op;
|
|
imm = imm + 1 - shift;
|
|
if (imm != 32) {
|
|
tmp2 = load_reg(s, rd);
|
|
gen_bfi(tmp, tmp2, tmp, shift, (1u << imm) - 1);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
case 7:
|
|
goto illegal_op;
|
|
default: /* Saturate. */
|
|
if (shift) {
|
|
if (op & 1)
|
|
tcg_gen_sari_i32(tmp, tmp, shift);
|
|
else
|
|
tcg_gen_shli_i32(tmp, tmp, shift);
|
|
}
|
|
tmp2 = tcg_const_i32(imm);
|
|
if (op & 4) {
|
|
/* Unsigned. */
|
|
if ((op & 1) && shift == 0)
|
|
gen_helper_usat16(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_usat(tmp, tmp, tmp2);
|
|
} else {
|
|
/* Signed. */
|
|
if ((op & 1) && shift == 0)
|
|
gen_helper_ssat16(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_ssat(tmp, tmp, tmp2);
|
|
}
|
|
tcg_temp_free_i32(tmp2);
|
|
break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
imm = ((insn & 0x04000000) >> 15)
|
|
| ((insn & 0x7000) >> 4) | (insn & 0xff);
|
|
if (insn & (1 << 22)) {
|
|
/* 16-bit immediate. */
|
|
imm |= (insn >> 4) & 0xf000;
|
|
if (insn & (1 << 23)) {
|
|
/* movt */
|
|
tmp = load_reg(s, rd);
|
|
tcg_gen_ext16u_i32(tmp, tmp);
|
|
tcg_gen_ori_i32(tmp, tmp, imm << 16);
|
|
} else {
|
|
/* movw */
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, imm);
|
|
}
|
|
} else {
|
|
/* Add/sub 12-bit immediate. */
|
|
if (rn == 15) {
|
|
offset = s->pc & ~(uint32_t)3;
|
|
if (insn & (1 << 23))
|
|
offset -= imm;
|
|
else
|
|
offset += imm;
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, offset);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
if (insn & (1 << 23))
|
|
tcg_gen_subi_i32(tmp, tmp, imm);
|
|
else
|
|
tcg_gen_addi_i32(tmp, tmp, imm);
|
|
}
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
} else {
|
|
int shifter_out = 0;
|
|
/* modified 12-bit immediate. */
|
|
shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12);
|
|
imm = (insn & 0xff);
|
|
switch (shift) {
|
|
case 0: /* XY */
|
|
/* Nothing to do. */
|
|
break;
|
|
case 1: /* 00XY00XY */
|
|
imm |= imm << 16;
|
|
break;
|
|
case 2: /* XY00XY00 */
|
|
imm |= imm << 16;
|
|
imm <<= 8;
|
|
break;
|
|
case 3: /* XYXYXYXY */
|
|
imm |= imm << 16;
|
|
imm |= imm << 8;
|
|
break;
|
|
default: /* Rotated constant. */
|
|
shift = (shift << 1) | (imm >> 7);
|
|
imm |= 0x80;
|
|
imm = imm << (32 - shift);
|
|
shifter_out = 1;
|
|
break;
|
|
}
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, imm);
|
|
rn = (insn >> 16) & 0xf;
|
|
if (rn == 15) {
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
} else {
|
|
tmp = load_reg(s, rn);
|
|
}
|
|
op = (insn >> 21) & 0xf;
|
|
if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0,
|
|
shifter_out, tmp, tmp2))
|
|
goto illegal_op;
|
|
dead_tmp(tmp2);
|
|
rd = (insn >> 8) & 0xf;
|
|
if (rd != 15) {
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
dead_tmp(tmp);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 12: /* Load/store single data item. */
|
|
{
|
|
int postinc = 0;
|
|
int writeback = 0;
|
|
int user;
|
|
if ((insn & 0x01100000) == 0x01000000) {
|
|
if (disas_neon_ls_insn(env, s, insn))
|
|
goto illegal_op;
|
|
break;
|
|
}
|
|
user = IS_USER(s);
|
|
if (rn == 15) {
|
|
addr = new_tmp();
|
|
/* PC relative. */
|
|
/* s->pc has already been incremented by 4. */
|
|
imm = s->pc & 0xfffffffc;
|
|
if (insn & (1 << 23))
|
|
imm += insn & 0xfff;
|
|
else
|
|
imm -= insn & 0xfff;
|
|
tcg_gen_movi_i32(addr, imm);
|
|
} else {
|
|
addr = load_reg(s, rn);
|
|
if (insn & (1 << 23)) {
|
|
/* Positive offset. */
|
|
imm = insn & 0xfff;
|
|
tcg_gen_addi_i32(addr, addr, imm);
|
|
} else {
|
|
op = (insn >> 8) & 7;
|
|
imm = insn & 0xff;
|
|
switch (op) {
|
|
case 0: case 8: /* Shifted Register. */
|
|
shift = (insn >> 4) & 0xf;
|
|
if (shift > 3)
|
|
goto illegal_op;
|
|
tmp = load_reg(s, rm);
|
|
if (shift)
|
|
tcg_gen_shli_i32(tmp, tmp, shift);
|
|
tcg_gen_add_i32(addr, addr, tmp);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 4: /* Negative offset. */
|
|
tcg_gen_addi_i32(addr, addr, -imm);
|
|
break;
|
|
case 6: /* User privilege. */
|
|
tcg_gen_addi_i32(addr, addr, imm);
|
|
user = 1;
|
|
break;
|
|
case 1: /* Post-decrement. */
|
|
imm = -imm;
|
|
/* Fall through. */
|
|
case 3: /* Post-increment. */
|
|
postinc = 1;
|
|
writeback = 1;
|
|
break;
|
|
case 5: /* Pre-decrement. */
|
|
imm = -imm;
|
|
/* Fall through. */
|
|
case 7: /* Pre-increment. */
|
|
tcg_gen_addi_i32(addr, addr, imm);
|
|
writeback = 1;
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
}
|
|
}
|
|
op = ((insn >> 21) & 3) | ((insn >> 22) & 4);
|
|
if (insn & (1 << 20)) {
|
|
/* Load. */
|
|
if (rs == 15 && op != 2) {
|
|
if (op & 2)
|
|
goto illegal_op;
|
|
/* Memory hint. Implemented as NOP. */
|
|
} else {
|
|
switch (op) {
|
|
case 0: tmp = gen_ld8u(addr, user); break;
|
|
case 4: tmp = gen_ld8s(addr, user); break;
|
|
case 1: tmp = gen_ld16u(addr, user); break;
|
|
case 5: tmp = gen_ld16s(addr, user); break;
|
|
case 2: tmp = gen_ld32(addr, user); break;
|
|
default: goto illegal_op;
|
|
}
|
|
if (rs == 15) {
|
|
gen_bx(s, tmp);
|
|
} else {
|
|
store_reg(s, rs, tmp);
|
|
}
|
|
}
|
|
} else {
|
|
/* Store. */
|
|
if (rs == 15)
|
|
goto illegal_op;
|
|
tmp = load_reg(s, rs);
|
|
switch (op) {
|
|
case 0: gen_st8(tmp, addr, user); break;
|
|
case 1: gen_st16(tmp, addr, user); break;
|
|
case 2: gen_st32(tmp, addr, user); break;
|
|
default: goto illegal_op;
|
|
}
|
|
}
|
|
if (postinc)
|
|
tcg_gen_addi_i32(addr, addr, imm);
|
|
if (writeback) {
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
return 0;
|
|
illegal_op:
|
|
return 1;
|
|
}
|
|
|
|
static void disas_thumb_insn(CPUState *env, DisasContext *s)
|
|
{
|
|
uint32_t val, insn, op, rm, rn, rd, shift, cond;
|
|
int32_t offset;
|
|
int i;
|
|
TCGv tmp;
|
|
TCGv tmp2;
|
|
TCGv addr;
|
|
|
|
if (s->condexec_mask) {
|
|
cond = s->condexec_cond;
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc(cond ^ 1, s->condlabel);
|
|
s->condjmp = 1;
|
|
}
|
|
|
|
insn = lduw_code(s->pc);
|
|
s->pc += 2;
|
|
|
|
switch (insn >> 12) {
|
|
case 0: case 1:
|
|
|
|
rd = insn & 7;
|
|
op = (insn >> 11) & 3;
|
|
if (op == 3) {
|
|
/* add/subtract */
|
|
rn = (insn >> 3) & 7;
|
|
tmp = load_reg(s, rn);
|
|
if (insn & (1 << 10)) {
|
|
/* immediate */
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, (insn >> 6) & 7);
|
|
} else {
|
|
/* reg */
|
|
rm = (insn >> 6) & 7;
|
|
tmp2 = load_reg(s, rm);
|
|
}
|
|
if (insn & (1 << 9)) {
|
|
if (s->condexec_mask)
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
} else {
|
|
if (s->condexec_mask)
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_add_cc(tmp, tmp, tmp2);
|
|
}
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* shift immediate */
|
|
rm = (insn >> 3) & 7;
|
|
shift = (insn >> 6) & 0x1f;
|
|
tmp = load_reg(s, rm);
|
|
gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
store_reg(s, rd, tmp);
|
|
}
|
|
break;
|
|
case 2: case 3:
|
|
/* arithmetic large immediate */
|
|
op = (insn >> 11) & 3;
|
|
rd = (insn >> 8) & 0x7;
|
|
if (op == 0) { /* mov */
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, insn & 0xff);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
tmp = load_reg(s, rd);
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, insn & 0xff);
|
|
switch (op) {
|
|
case 1: /* cmp */
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
dead_tmp(tmp);
|
|
dead_tmp(tmp2);
|
|
break;
|
|
case 2: /* add */
|
|
if (s->condexec_mask)
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_add_cc(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 3: /* sub */
|
|
if (s->condexec_mask)
|
|
tcg_gen_sub_i32(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
if (insn & (1 << 11)) {
|
|
rd = (insn >> 8) & 7;
|
|
/* load pc-relative. Bit 1 of PC is ignored. */
|
|
val = s->pc + 2 + ((insn & 0xff) * 4);
|
|
val &= ~(uint32_t)2;
|
|
addr = new_tmp();
|
|
tcg_gen_movi_i32(addr, val);
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
dead_tmp(addr);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
}
|
|
if (insn & (1 << 10)) {
|
|
/* data processing extended or blx */
|
|
rd = (insn & 7) | ((insn >> 4) & 8);
|
|
rm = (insn >> 3) & 0xf;
|
|
op = (insn >> 8) & 3;
|
|
switch (op) {
|
|
case 0: /* add */
|
|
tmp = load_reg(s, rd);
|
|
tmp2 = load_reg(s, rm);
|
|
tcg_gen_add_i32(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 1: /* cmp */
|
|
tmp = load_reg(s, rd);
|
|
tmp2 = load_reg(s, rm);
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
dead_tmp(tmp2);
|
|
dead_tmp(tmp);
|
|
break;
|
|
case 2: /* mov/cpy */
|
|
tmp = load_reg(s, rm);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 3:/* branch [and link] exchange thumb register */
|
|
tmp = load_reg(s, rm);
|
|
if (insn & (1 << 7)) {
|
|
val = (uint32_t)s->pc | 1;
|
|
tmp2 = new_tmp();
|
|
tcg_gen_movi_i32(tmp2, val);
|
|
store_reg(s, 14, tmp2);
|
|
}
|
|
gen_bx(s, tmp);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* data processing register */
|
|
rd = insn & 7;
|
|
rm = (insn >> 3) & 7;
|
|
op = (insn >> 6) & 0xf;
|
|
if (op == 2 || op == 3 || op == 4 || op == 7) {
|
|
/* the shift/rotate ops want the operands backwards */
|
|
val = rm;
|
|
rm = rd;
|
|
rd = val;
|
|
val = 1;
|
|
} else {
|
|
val = 0;
|
|
}
|
|
|
|
if (op == 9) { /* neg */
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
} else if (op != 0xf) { /* mvn doesn't read its first operand */
|
|
tmp = load_reg(s, rd);
|
|
} else {
|
|
TCGV_UNUSED(tmp);
|
|
}
|
|
|
|
tmp2 = load_reg(s, rm);
|
|
switch (op) {
|
|
case 0x0: /* and */
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
break;
|
|
case 0x1: /* eor */
|
|
tcg_gen_xor_i32(tmp, tmp, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
break;
|
|
case 0x2: /* lsl */
|
|
if (s->condexec_mask) {
|
|
gen_helper_shl(tmp2, tmp2, tmp);
|
|
} else {
|
|
gen_helper_shl_cc(tmp2, tmp2, tmp);
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
break;
|
|
case 0x3: /* lsr */
|
|
if (s->condexec_mask) {
|
|
gen_helper_shr(tmp2, tmp2, tmp);
|
|
} else {
|
|
gen_helper_shr_cc(tmp2, tmp2, tmp);
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
break;
|
|
case 0x4: /* asr */
|
|
if (s->condexec_mask) {
|
|
gen_helper_sar(tmp2, tmp2, tmp);
|
|
} else {
|
|
gen_helper_sar_cc(tmp2, tmp2, tmp);
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
break;
|
|
case 0x5: /* adc */
|
|
if (s->condexec_mask)
|
|
gen_adc(tmp, tmp2);
|
|
else
|
|
gen_helper_adc_cc(tmp, tmp, tmp2);
|
|
break;
|
|
case 0x6: /* sbc */
|
|
if (s->condexec_mask)
|
|
gen_sub_carry(tmp, tmp, tmp2);
|
|
else
|
|
gen_helper_sbc_cc(tmp, tmp, tmp2);
|
|
break;
|
|
case 0x7: /* ror */
|
|
if (s->condexec_mask) {
|
|
tcg_gen_andi_i32(tmp, tmp, 0x1f);
|
|
tcg_gen_rotr_i32(tmp2, tmp2, tmp);
|
|
} else {
|
|
gen_helper_ror_cc(tmp2, tmp2, tmp);
|
|
gen_logic_CC(tmp2);
|
|
}
|
|
break;
|
|
case 0x8: /* tst */
|
|
tcg_gen_and_i32(tmp, tmp, tmp2);
|
|
gen_logic_CC(tmp);
|
|
rd = 16;
|
|
break;
|
|
case 0x9: /* neg */
|
|
if (s->condexec_mask)
|
|
tcg_gen_neg_i32(tmp, tmp2);
|
|
else
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
break;
|
|
case 0xa: /* cmp */
|
|
gen_helper_sub_cc(tmp, tmp, tmp2);
|
|
rd = 16;
|
|
break;
|
|
case 0xb: /* cmn */
|
|
gen_helper_add_cc(tmp, tmp, tmp2);
|
|
rd = 16;
|
|
break;
|
|
case 0xc: /* orr */
|
|
tcg_gen_or_i32(tmp, tmp, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
break;
|
|
case 0xd: /* mul */
|
|
tcg_gen_mul_i32(tmp, tmp, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
break;
|
|
case 0xe: /* bic */
|
|
tcg_gen_andc_i32(tmp, tmp, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp);
|
|
break;
|
|
case 0xf: /* mvn */
|
|
tcg_gen_not_i32(tmp2, tmp2);
|
|
if (!s->condexec_mask)
|
|
gen_logic_CC(tmp2);
|
|
val = 1;
|
|
rm = rd;
|
|
break;
|
|
}
|
|
if (rd != 16) {
|
|
if (val) {
|
|
store_reg(s, rm, tmp2);
|
|
if (op != 0xf)
|
|
dead_tmp(tmp);
|
|
} else {
|
|
store_reg(s, rd, tmp);
|
|
dead_tmp(tmp2);
|
|
}
|
|
} else {
|
|
dead_tmp(tmp);
|
|
dead_tmp(tmp2);
|
|
}
|
|
break;
|
|
|
|
case 5:
|
|
/* load/store register offset. */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
rm = (insn >> 6) & 7;
|
|
op = (insn >> 9) & 7;
|
|
addr = load_reg(s, rn);
|
|
tmp = load_reg(s, rm);
|
|
tcg_gen_add_i32(addr, addr, tmp);
|
|
dead_tmp(tmp);
|
|
|
|
if (op < 3) /* store */
|
|
tmp = load_reg(s, rd);
|
|
|
|
switch (op) {
|
|
case 0: /* str */
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 1: /* strh */
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 2: /* strb */
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
break;
|
|
case 3: /* ldrsb */
|
|
tmp = gen_ld8s(addr, IS_USER(s));
|
|
break;
|
|
case 4: /* ldr */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
break;
|
|
case 5: /* ldrh */
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
break;
|
|
case 6: /* ldrb */
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
break;
|
|
case 7: /* ldrsh */
|
|
tmp = gen_ld16s(addr, IS_USER(s));
|
|
break;
|
|
}
|
|
if (op >= 3) /* load */
|
|
store_reg(s, rd, tmp);
|
|
dead_tmp(addr);
|
|
break;
|
|
|
|
case 6:
|
|
/* load/store word immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
addr = load_reg(s, rn);
|
|
val = (insn >> 4) & 0x7c;
|
|
tcg_gen_addi_i32(addr, addr, val);
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
break;
|
|
|
|
case 7:
|
|
/* load/store byte immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
addr = load_reg(s, rn);
|
|
val = (insn >> 6) & 0x1f;
|
|
tcg_gen_addi_i32(addr, addr, val);
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
tmp = gen_ld8u(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st8(tmp, addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
break;
|
|
|
|
case 8:
|
|
/* load/store halfword immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
addr = load_reg(s, rn);
|
|
val = (insn >> 5) & 0x3e;
|
|
tcg_gen_addi_i32(addr, addr, val);
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
tmp = gen_ld16u(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st16(tmp, addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
break;
|
|
|
|
case 9:
|
|
/* load/store from stack */
|
|
rd = (insn >> 8) & 7;
|
|
addr = load_reg(s, 13);
|
|
val = (insn & 0xff) * 4;
|
|
tcg_gen_addi_i32(addr, addr, val);
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, rd, tmp);
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, rd);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
dead_tmp(addr);
|
|
break;
|
|
|
|
case 10:
|
|
/* add to high reg */
|
|
rd = (insn >> 8) & 7;
|
|
if (insn & (1 << 11)) {
|
|
/* SP */
|
|
tmp = load_reg(s, 13);
|
|
} else {
|
|
/* PC. bit 1 is ignored. */
|
|
tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2);
|
|
}
|
|
val = (insn & 0xff) * 4;
|
|
tcg_gen_addi_i32(tmp, tmp, val);
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
|
|
case 11:
|
|
/* misc */
|
|
op = (insn >> 8) & 0xf;
|
|
switch (op) {
|
|
case 0:
|
|
/* adjust stack pointer */
|
|
tmp = load_reg(s, 13);
|
|
val = (insn & 0x7f) * 4;
|
|
if (insn & (1 << 7))
|
|
val = -(int32_t)val;
|
|
tcg_gen_addi_i32(tmp, tmp, val);
|
|
store_reg(s, 13, tmp);
|
|
break;
|
|
|
|
case 2: /* sign/zero extend. */
|
|
ARCH(6);
|
|
rd = insn & 7;
|
|
rm = (insn >> 3) & 7;
|
|
tmp = load_reg(s, rm);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0: gen_sxth(tmp); break;
|
|
case 1: gen_sxtb(tmp); break;
|
|
case 2: gen_uxth(tmp); break;
|
|
case 3: gen_uxtb(tmp); break;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
case 4: case 5: case 0xc: case 0xd:
|
|
/* push/pop */
|
|
addr = load_reg(s, 13);
|
|
if (insn & (1 << 8))
|
|
offset = 4;
|
|
else
|
|
offset = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i))
|
|
offset += 4;
|
|
}
|
|
if ((insn & (1 << 11)) == 0) {
|
|
tcg_gen_addi_i32(addr, addr, -offset);
|
|
}
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 11)) {
|
|
/* pop */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, i, tmp);
|
|
} else {
|
|
/* push */
|
|
tmp = load_reg(s, i);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
/* advance to the next address. */
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
}
|
|
TCGV_UNUSED(tmp);
|
|
if (insn & (1 << 8)) {
|
|
if (insn & (1 << 11)) {
|
|
/* pop pc */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
/* don't set the pc until the rest of the instruction
|
|
has completed */
|
|
} else {
|
|
/* push lr */
|
|
tmp = load_reg(s, 14);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
if ((insn & (1 << 11)) == 0) {
|
|
tcg_gen_addi_i32(addr, addr, -offset);
|
|
}
|
|
/* write back the new stack pointer */
|
|
store_reg(s, 13, addr);
|
|
/* set the new PC value */
|
|
if ((insn & 0x0900) == 0x0900)
|
|
gen_bx(s, tmp);
|
|
break;
|
|
|
|
case 1: case 3: case 9: case 11: /* czb */
|
|
rm = insn & 7;
|
|
tmp = load_reg(s, rm);
|
|
s->condlabel = gen_new_label();
|
|
s->condjmp = 1;
|
|
if (insn & (1 << 11))
|
|
tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel);
|
|
else
|
|
tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel);
|
|
dead_tmp(tmp);
|
|
offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3;
|
|
val = (uint32_t)s->pc + 2;
|
|
val += offset;
|
|
gen_jmp(s, val);
|
|
break;
|
|
|
|
case 15: /* IT, nop-hint. */
|
|
if ((insn & 0xf) == 0) {
|
|
gen_nop_hint(s, (insn >> 4) & 0xf);
|
|
break;
|
|
}
|
|
/* If Then. */
|
|
s->condexec_cond = (insn >> 4) & 0xe;
|
|
s->condexec_mask = insn & 0x1f;
|
|
/* No actual code generated for this insn, just setup state. */
|
|
break;
|
|
|
|
case 0xe: /* bkpt */
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc - 2);
|
|
gen_exception(EXCP_BKPT);
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
|
|
case 0xa: /* rev */
|
|
ARCH(6);
|
|
rn = (insn >> 3) & 0x7;
|
|
rd = insn & 0x7;
|
|
tmp = load_reg(s, rn);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0: tcg_gen_bswap32_i32(tmp, tmp); break;
|
|
case 1: gen_rev16(tmp); break;
|
|
case 3: gen_revsh(tmp); break;
|
|
default: goto illegal_op;
|
|
}
|
|
store_reg(s, rd, tmp);
|
|
break;
|
|
|
|
case 6: /* cps */
|
|
ARCH(6);
|
|
if (IS_USER(s))
|
|
break;
|
|
if (IS_M(env)) {
|
|
tmp = tcg_const_i32((insn & (1 << 4)) != 0);
|
|
/* PRIMASK */
|
|
if (insn & 1) {
|
|
addr = tcg_const_i32(16);
|
|
gen_helper_v7m_msr(cpu_env, addr, tmp);
|
|
tcg_temp_free_i32(addr);
|
|
}
|
|
/* FAULTMASK */
|
|
if (insn & 2) {
|
|
addr = tcg_const_i32(17);
|
|
gen_helper_v7m_msr(cpu_env, addr, tmp);
|
|
tcg_temp_free_i32(addr);
|
|
}
|
|
tcg_temp_free_i32(tmp);
|
|
gen_lookup_tb(s);
|
|
} else {
|
|
if (insn & (1 << 4))
|
|
shift = CPSR_A | CPSR_I | CPSR_F;
|
|
else
|
|
shift = 0;
|
|
gen_set_psr_im(s, shift, 0, ((insn & 7) << 6) & shift);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
goto undef;
|
|
}
|
|
break;
|
|
|
|
case 12:
|
|
/* load/store multiple */
|
|
rn = (insn >> 8) & 0x7;
|
|
addr = load_reg(s, rn);
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
tmp = gen_ld32(addr, IS_USER(s));
|
|
store_reg(s, i, tmp);
|
|
} else {
|
|
/* store */
|
|
tmp = load_reg(s, i);
|
|
gen_st32(tmp, addr, IS_USER(s));
|
|
}
|
|
/* advance to the next address */
|
|
tcg_gen_addi_i32(addr, addr, 4);
|
|
}
|
|
}
|
|
/* Base register writeback. */
|
|
if ((insn & (1 << rn)) == 0) {
|
|
store_reg(s, rn, addr);
|
|
} else {
|
|
dead_tmp(addr);
|
|
}
|
|
break;
|
|
|
|
case 13:
|
|
/* conditional branch or swi */
|
|
cond = (insn >> 8) & 0xf;
|
|
if (cond == 0xe)
|
|
goto undef;
|
|
|
|
if (cond == 0xf) {
|
|
/* swi */
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc);
|
|
s->is_jmp = DISAS_SWI;
|
|
break;
|
|
}
|
|
/* generate a conditional jump to next instruction */
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc(cond ^ 1, s->condlabel);
|
|
s->condjmp = 1;
|
|
|
|
/* jump to the offset */
|
|
val = (uint32_t)s->pc + 2;
|
|
offset = ((int32_t)insn << 24) >> 24;
|
|
val += offset << 1;
|
|
gen_jmp(s, val);
|
|
break;
|
|
|
|
case 14:
|
|
if (insn & (1 << 11)) {
|
|
if (disas_thumb2_insn(env, s, insn))
|
|
goto undef32;
|
|
break;
|
|
}
|
|
/* unconditional branch */
|
|
val = (uint32_t)s->pc;
|
|
offset = ((int32_t)insn << 21) >> 21;
|
|
val += (offset << 1) + 2;
|
|
gen_jmp(s, val);
|
|
break;
|
|
|
|
case 15:
|
|
if (disas_thumb2_insn(env, s, insn))
|
|
goto undef32;
|
|
break;
|
|
}
|
|
return;
|
|
undef32:
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc - 4);
|
|
gen_exception(EXCP_UDEF);
|
|
s->is_jmp = DISAS_JUMP;
|
|
return;
|
|
illegal_op:
|
|
undef:
|
|
gen_set_condexec(s);
|
|
gen_set_pc_im(s->pc - 2);
|
|
gen_exception(EXCP_UDEF);
|
|
s->is_jmp = DISAS_JUMP;
|
|
}
|
|
|
|
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
|
|
basic block 'tb'. If search_pc is TRUE, also generate PC
|
|
information for each intermediate instruction. */
|
|
static inline void gen_intermediate_code_internal(CPUState *env,
|
|
TranslationBlock *tb,
|
|
int search_pc)
|
|
{
|
|
DisasContext dc1, *dc = &dc1;
|
|
CPUBreakpoint *bp;
|
|
uint16_t *gen_opc_end;
|
|
int j, lj;
|
|
target_ulong pc_start;
|
|
uint32_t next_page_start;
|
|
int num_insns;
|
|
int max_insns;
|
|
|
|
/* generate intermediate code */
|
|
num_temps = 0;
|
|
|
|
pc_start = tb->pc;
|
|
|
|
dc->tb = tb;
|
|
|
|
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
|
|
|
|
dc->is_jmp = DISAS_NEXT;
|
|
dc->pc = pc_start;
|
|
dc->singlestep_enabled = env->singlestep_enabled;
|
|
dc->condjmp = 0;
|
|
dc->thumb = env->thumb;
|
|
dc->condexec_mask = (env->condexec_bits & 0xf) << 1;
|
|
dc->condexec_cond = env->condexec_bits >> 4;
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
if (IS_M(env)) {
|
|
dc->user = ((env->v7m.exception == 0) && (env->v7m.control & 1));
|
|
} else {
|
|
dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
|
|
}
|
|
#endif
|
|
cpu_F0s = tcg_temp_new_i32();
|
|
cpu_F1s = tcg_temp_new_i32();
|
|
cpu_F0d = tcg_temp_new_i64();
|
|
cpu_F1d = tcg_temp_new_i64();
|
|
cpu_V0 = cpu_F0d;
|
|
cpu_V1 = cpu_F1d;
|
|
/* FIXME: cpu_M0 can probably be the same as cpu_V0. */
|
|
cpu_M0 = tcg_temp_new_i64();
|
|
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
|
|
lj = -1;
|
|
num_insns = 0;
|
|
max_insns = tb->cflags & CF_COUNT_MASK;
|
|
if (max_insns == 0)
|
|
max_insns = CF_COUNT_MASK;
|
|
|
|
gen_icount_start();
|
|
/* Reset the conditional execution bits immediately. This avoids
|
|
complications trying to do it at the end of the block. */
|
|
if (env->condexec_bits)
|
|
{
|
|
TCGv tmp = new_tmp();
|
|
tcg_gen_movi_i32(tmp, 0);
|
|
store_cpu_field(tmp, condexec_bits);
|
|
}
|
|
do {
|
|
#ifdef CONFIG_USER_ONLY
|
|
/* Intercept jump to the magic kernel page. */
|
|
if (dc->pc >= 0xffff0000) {
|
|
/* We always get here via a jump, so know we are not in a
|
|
conditional execution block. */
|
|
gen_exception(EXCP_KERNEL_TRAP);
|
|
dc->is_jmp = DISAS_UPDATE;
|
|
break;
|
|
}
|
|
#else
|
|
if (dc->pc >= 0xfffffff0 && IS_M(env)) {
|
|
/* We always get here via a jump, so know we are not in a
|
|
conditional execution block. */
|
|
gen_exception(EXCP_EXCEPTION_EXIT);
|
|
dc->is_jmp = DISAS_UPDATE;
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
|
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
|
|
if (bp->pc == dc->pc) {
|
|
gen_set_condexec(dc);
|
|
gen_set_pc_im(dc->pc);
|
|
gen_exception(EXCP_DEBUG);
|
|
dc->is_jmp = DISAS_JUMP;
|
|
/* Advance PC so that clearing the breakpoint will
|
|
invalidate this TB. */
|
|
dc->pc += 2;
|
|
goto done_generating;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (search_pc) {
|
|
j = gen_opc_ptr - gen_opc_buf;
|
|
if (lj < j) {
|
|
lj++;
|
|
while (lj < j)
|
|
gen_opc_instr_start[lj++] = 0;
|
|
}
|
|
gen_opc_pc[lj] = dc->pc;
|
|
gen_opc_instr_start[lj] = 1;
|
|
gen_opc_icount[lj] = num_insns;
|
|
}
|
|
|
|
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
|
|
gen_io_start();
|
|
|
|
if (env->thumb) {
|
|
disas_thumb_insn(env, dc);
|
|
if (dc->condexec_mask) {
|
|
dc->condexec_cond = (dc->condexec_cond & 0xe)
|
|
| ((dc->condexec_mask >> 4) & 1);
|
|
dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f;
|
|
if (dc->condexec_mask == 0) {
|
|
dc->condexec_cond = 0;
|
|
}
|
|
}
|
|
} else {
|
|
disas_arm_insn(env, dc);
|
|
}
|
|
if (num_temps) {
|
|
fprintf(stderr, "Internal resource leak before %08x\n", dc->pc);
|
|
num_temps = 0;
|
|
}
|
|
|
|
if (dc->condjmp && !dc->is_jmp) {
|
|
gen_set_label(dc->condlabel);
|
|
dc->condjmp = 0;
|
|
}
|
|
/* Translation stops when a conditional branch is encountered.
|
|
* Otherwise the subsequent code could get translated several times.
|
|
* Also stop translation when a page boundary is reached. This
|
|
* ensures prefetch aborts occur at the right place. */
|
|
num_insns ++;
|
|
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
|
|
!env->singlestep_enabled &&
|
|
!singlestep &&
|
|
dc->pc < next_page_start &&
|
|
num_insns < max_insns);
|
|
|
|
if (tb->cflags & CF_LAST_IO) {
|
|
if (dc->condjmp) {
|
|
/* FIXME: This can theoretically happen with self-modifying
|
|
code. */
|
|
cpu_abort(env, "IO on conditional branch instruction");
|
|
}
|
|
gen_io_end();
|
|
}
|
|
|
|
/* At this stage dc->condjmp will only be set when the skipped
|
|
instruction was a conditional branch or trap, and the PC has
|
|
already been written. */
|
|
if (unlikely(env->singlestep_enabled)) {
|
|
/* Make sure the pc is updated, and raise a debug exception. */
|
|
if (dc->condjmp) {
|
|
gen_set_condexec(dc);
|
|
if (dc->is_jmp == DISAS_SWI) {
|
|
gen_exception(EXCP_SWI);
|
|
} else {
|
|
gen_exception(EXCP_DEBUG);
|
|
}
|
|
gen_set_label(dc->condlabel);
|
|
}
|
|
if (dc->condjmp || !dc->is_jmp) {
|
|
gen_set_pc_im(dc->pc);
|
|
dc->condjmp = 0;
|
|
}
|
|
gen_set_condexec(dc);
|
|
if (dc->is_jmp == DISAS_SWI && !dc->condjmp) {
|
|
gen_exception(EXCP_SWI);
|
|
} else {
|
|
/* FIXME: Single stepping a WFI insn will not halt
|
|
the CPU. */
|
|
gen_exception(EXCP_DEBUG);
|
|
}
|
|
} else {
|
|
/* While branches must always occur at the end of an IT block,
|
|
there are a few other things that can cause us to terminate
|
|
the TB in the middel of an IT block:
|
|
- Exception generating instructions (bkpt, swi, undefined).
|
|
- Page boundaries.
|
|
- Hardware watchpoints.
|
|
Hardware breakpoints have already been handled and skip this code.
|
|
*/
|
|
gen_set_condexec(dc);
|
|
switch(dc->is_jmp) {
|
|
case DISAS_NEXT:
|
|
gen_goto_tb(dc, 1, dc->pc);
|
|
break;
|
|
default:
|
|
case DISAS_JUMP:
|
|
case DISAS_UPDATE:
|
|
/* indicate that the hash table must be used to find the next TB */
|
|
tcg_gen_exit_tb(0);
|
|
break;
|
|
case DISAS_TB_JUMP:
|
|
/* nothing more to generate */
|
|
break;
|
|
case DISAS_WFI:
|
|
gen_helper_wfi();
|
|
break;
|
|
case DISAS_SWI:
|
|
gen_exception(EXCP_SWI);
|
|
break;
|
|
}
|
|
if (dc->condjmp) {
|
|
gen_set_label(dc->condlabel);
|
|
gen_set_condexec(dc);
|
|
gen_goto_tb(dc, 1, dc->pc);
|
|
dc->condjmp = 0;
|
|
}
|
|
}
|
|
|
|
done_generating:
|
|
gen_icount_end(tb, num_insns);
|
|
*gen_opc_ptr = INDEX_op_end;
|
|
|
|
#ifdef DEBUG_DISAS
|
|
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
|
qemu_log("----------------\n");
|
|
qemu_log("IN: %s\n", lookup_symbol(pc_start));
|
|
log_target_disas(pc_start, dc->pc - pc_start, env->thumb);
|
|
qemu_log("\n");
|
|
}
|
|
#endif
|
|
if (search_pc) {
|
|
j = gen_opc_ptr - gen_opc_buf;
|
|
lj++;
|
|
while (lj <= j)
|
|
gen_opc_instr_start[lj++] = 0;
|
|
} else {
|
|
tb->size = dc->pc - pc_start;
|
|
tb->icount = num_insns;
|
|
}
|
|
}
|
|
|
|
void gen_intermediate_code(CPUState *env, TranslationBlock *tb)
|
|
{
|
|
gen_intermediate_code_internal(env, tb, 0);
|
|
}
|
|
|
|
void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
|
|
{
|
|
gen_intermediate_code_internal(env, tb, 1);
|
|
}
|
|
|
|
static const char *cpu_mode_names[16] = {
|
|
"usr", "fiq", "irq", "svc", "???", "???", "???", "abt",
|
|
"???", "???", "???", "und", "???", "???", "???", "sys"
|
|
};
|
|
|
|
void cpu_dump_state(CPUState *env, FILE *f,
|
|
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
|
|
int flags)
|
|
{
|
|
int i;
|
|
#if 0
|
|
union {
|
|
uint32_t i;
|
|
float s;
|
|
} s0, s1;
|
|
CPU_DoubleU d;
|
|
/* ??? This assumes float64 and double have the same layout.
|
|
Oh well, it's only debug dumps. */
|
|
union {
|
|
float64 f64;
|
|
double d;
|
|
} d0;
|
|
#endif
|
|
uint32_t psr;
|
|
|
|
for(i=0;i<16;i++) {
|
|
cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
|
|
if ((i % 4) == 3)
|
|
cpu_fprintf(f, "\n");
|
|
else
|
|
cpu_fprintf(f, " ");
|
|
}
|
|
psr = cpsr_read(env);
|
|
cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
|
|
psr,
|
|
psr & (1 << 31) ? 'N' : '-',
|
|
psr & (1 << 30) ? 'Z' : '-',
|
|
psr & (1 << 29) ? 'C' : '-',
|
|
psr & (1 << 28) ? 'V' : '-',
|
|
psr & CPSR_T ? 'T' : 'A',
|
|
cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26);
|
|
|
|
#if 0
|
|
for (i = 0; i < 16; i++) {
|
|
d.d = env->vfp.regs[i];
|
|
s0.i = d.l.lower;
|
|
s1.i = d.l.upper;
|
|
d0.f64 = d.d;
|
|
cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
|
|
i * 2, (int)s0.i, s0.s,
|
|
i * 2 + 1, (int)s1.i, s1.s,
|
|
i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower,
|
|
d0.d);
|
|
}
|
|
cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]);
|
|
#endif
|
|
}
|
|
|
|
void gen_pc_load(CPUState *env, TranslationBlock *tb,
|
|
unsigned long searched_pc, int pc_pos, void *puc)
|
|
{
|
|
env->regs[15] = gen_opc_pc[pc_pos];
|
|
}
|