4350 lines
113 KiB
C
4350 lines
113 KiB
C
/*
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* S/390 translation
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*
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* Copyright (c) 2009 Ulrich Hecht
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* Copyright (c) 2010 Alexander Graf
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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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/* #define DEBUG_INLINE_BRANCHES */
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#define S390X_DEBUG_DISAS
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/* #define S390X_DEBUG_DISAS_VERBOSE */
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#ifdef S390X_DEBUG_DISAS_VERBOSE
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# define LOG_DISAS(...) qemu_log(__VA_ARGS__)
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#else
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# define LOG_DISAS(...) do { } while (0)
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#endif
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#include "cpu.h"
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#include "disas/disas.h"
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#include "tcg-op.h"
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#include "qemu/log.h"
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#include "qemu/host-utils.h"
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/* global register indexes */
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static TCGv_ptr cpu_env;
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#include "exec/gen-icount.h"
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#include "helper.h"
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#define GEN_HELPER 1
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#include "helper.h"
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/* Information that (most) every instruction needs to manipulate. */
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typedef struct DisasContext DisasContext;
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typedef struct DisasInsn DisasInsn;
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typedef struct DisasFields DisasFields;
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struct DisasContext {
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struct TranslationBlock *tb;
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const DisasInsn *insn;
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DisasFields *fields;
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uint64_t pc, next_pc;
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enum cc_op cc_op;
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bool singlestep_enabled;
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int is_jmp;
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};
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/* Information carried about a condition to be evaluated. */
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typedef struct {
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TCGCond cond:8;
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bool is_64;
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bool g1;
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bool g2;
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union {
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struct { TCGv_i64 a, b; } s64;
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struct { TCGv_i32 a, b; } s32;
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} u;
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} DisasCompare;
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#define DISAS_EXCP 4
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static void gen_op_calc_cc(DisasContext *s);
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#ifdef DEBUG_INLINE_BRANCHES
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static uint64_t inline_branch_hit[CC_OP_MAX];
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static uint64_t inline_branch_miss[CC_OP_MAX];
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#endif
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static inline void debug_insn(uint64_t insn)
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{
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LOG_DISAS("insn: 0x%" PRIx64 "\n", insn);
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}
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static inline uint64_t pc_to_link_info(DisasContext *s, uint64_t pc)
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{
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if (!(s->tb->flags & FLAG_MASK_64)) {
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if (s->tb->flags & FLAG_MASK_32) {
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return pc | 0x80000000;
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}
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}
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return pc;
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}
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void cpu_dump_state(CPUS390XState *env, FILE *f, fprintf_function cpu_fprintf,
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int flags)
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{
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int i;
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if (env->cc_op > 3) {
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cpu_fprintf(f, "PSW=mask %016" PRIx64 " addr %016" PRIx64 " cc %15s\n",
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env->psw.mask, env->psw.addr, cc_name(env->cc_op));
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} else {
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cpu_fprintf(f, "PSW=mask %016" PRIx64 " addr %016" PRIx64 " cc %02x\n",
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env->psw.mask, env->psw.addr, env->cc_op);
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}
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for (i = 0; i < 16; i++) {
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cpu_fprintf(f, "R%02d=%016" PRIx64, i, env->regs[i]);
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if ((i % 4) == 3) {
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cpu_fprintf(f, "\n");
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} else {
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cpu_fprintf(f, " ");
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}
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}
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for (i = 0; i < 16; i++) {
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cpu_fprintf(f, "F%02d=%016" PRIx64, i, env->fregs[i].ll);
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if ((i % 4) == 3) {
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cpu_fprintf(f, "\n");
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} else {
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cpu_fprintf(f, " ");
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}
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}
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#ifndef CONFIG_USER_ONLY
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for (i = 0; i < 16; i++) {
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cpu_fprintf(f, "C%02d=%016" PRIx64, i, env->cregs[i]);
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if ((i % 4) == 3) {
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cpu_fprintf(f, "\n");
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} else {
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cpu_fprintf(f, " ");
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}
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}
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#endif
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#ifdef DEBUG_INLINE_BRANCHES
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for (i = 0; i < CC_OP_MAX; i++) {
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cpu_fprintf(f, " %15s = %10ld\t%10ld\n", cc_name(i),
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inline_branch_miss[i], inline_branch_hit[i]);
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}
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#endif
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cpu_fprintf(f, "\n");
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}
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static TCGv_i64 psw_addr;
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static TCGv_i64 psw_mask;
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static TCGv_i32 cc_op;
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static TCGv_i64 cc_src;
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static TCGv_i64 cc_dst;
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static TCGv_i64 cc_vr;
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static char cpu_reg_names[32][4];
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static TCGv_i64 regs[16];
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static TCGv_i64 fregs[16];
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static uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
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void s390x_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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psw_addr = tcg_global_mem_new_i64(TCG_AREG0,
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offsetof(CPUS390XState, psw.addr),
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"psw_addr");
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psw_mask = tcg_global_mem_new_i64(TCG_AREG0,
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offsetof(CPUS390XState, psw.mask),
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"psw_mask");
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cc_op = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUS390XState, cc_op),
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"cc_op");
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cc_src = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_src),
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"cc_src");
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cc_dst = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_dst),
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"cc_dst");
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cc_vr = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_vr),
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"cc_vr");
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for (i = 0; i < 16; i++) {
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snprintf(cpu_reg_names[i], sizeof(cpu_reg_names[0]), "r%d", i);
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regs[i] = tcg_global_mem_new(TCG_AREG0,
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offsetof(CPUS390XState, regs[i]),
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cpu_reg_names[i]);
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}
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for (i = 0; i < 16; i++) {
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snprintf(cpu_reg_names[i + 16], sizeof(cpu_reg_names[0]), "f%d", i);
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fregs[i] = tcg_global_mem_new(TCG_AREG0,
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offsetof(CPUS390XState, fregs[i].d),
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cpu_reg_names[i + 16]);
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}
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/* register helpers */
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#define GEN_HELPER 2
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#include "helper.h"
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}
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static inline TCGv_i64 load_reg(int reg)
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{
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TCGv_i64 r = tcg_temp_new_i64();
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tcg_gen_mov_i64(r, regs[reg]);
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return r;
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}
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static inline TCGv_i64 load_freg(int reg)
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{
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TCGv_i64 r = tcg_temp_new_i64();
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tcg_gen_mov_i64(r, fregs[reg]);
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return r;
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}
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static inline TCGv_i32 load_freg32(int reg)
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{
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TCGv_i32 r = tcg_temp_new_i32();
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#if HOST_LONG_BITS == 32
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tcg_gen_mov_i32(r, TCGV_HIGH(fregs[reg]));
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#else
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tcg_gen_shri_i64(MAKE_TCGV_I64(GET_TCGV_I32(r)), fregs[reg], 32);
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#endif
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return r;
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}
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static inline TCGv_i64 load_freg32_i64(int reg)
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{
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TCGv_i64 r = tcg_temp_new_i64();
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tcg_gen_shri_i64(r, fregs[reg], 32);
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return r;
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}
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static inline TCGv_i32 load_reg32(int reg)
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{
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TCGv_i32 r = tcg_temp_new_i32();
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tcg_gen_trunc_i64_i32(r, regs[reg]);
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return r;
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}
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static inline TCGv_i64 load_reg32_i64(int reg)
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{
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TCGv_i64 r = tcg_temp_new_i64();
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tcg_gen_ext32s_i64(r, regs[reg]);
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return r;
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}
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static inline void store_reg(int reg, TCGv_i64 v)
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{
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tcg_gen_mov_i64(regs[reg], v);
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}
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static inline void store_freg(int reg, TCGv_i64 v)
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{
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tcg_gen_mov_i64(fregs[reg], v);
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}
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static inline void store_reg32(int reg, TCGv_i32 v)
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{
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/* 32 bit register writes keep the upper half */
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#if HOST_LONG_BITS == 32
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tcg_gen_mov_i32(TCGV_LOW(regs[reg]), v);
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#else
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tcg_gen_deposit_i64(regs[reg], regs[reg],
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MAKE_TCGV_I64(GET_TCGV_I32(v)), 0, 32);
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#endif
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}
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static inline void store_reg32_i64(int reg, TCGv_i64 v)
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{
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/* 32 bit register writes keep the upper half */
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tcg_gen_deposit_i64(regs[reg], regs[reg], v, 0, 32);
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}
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static inline void store_reg32h_i64(int reg, TCGv_i64 v)
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{
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tcg_gen_deposit_i64(regs[reg], regs[reg], v, 32, 32);
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}
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static inline void store_freg32(int reg, TCGv_i32 v)
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{
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/* 32 bit register writes keep the lower half */
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#if HOST_LONG_BITS == 32
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tcg_gen_mov_i32(TCGV_HIGH(fregs[reg]), v);
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#else
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tcg_gen_deposit_i64(fregs[reg], fregs[reg],
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MAKE_TCGV_I64(GET_TCGV_I32(v)), 32, 32);
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#endif
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}
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static inline void store_freg32_i64(int reg, TCGv_i64 v)
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{
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tcg_gen_deposit_i64(fregs[reg], fregs[reg], v, 32, 32);
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}
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static inline void return_low128(TCGv_i64 dest)
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{
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tcg_gen_ld_i64(dest, cpu_env, offsetof(CPUS390XState, retxl));
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}
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static inline void update_psw_addr(DisasContext *s)
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{
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/* psw.addr */
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tcg_gen_movi_i64(psw_addr, s->pc);
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}
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static inline void potential_page_fault(DisasContext *s)
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{
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#ifndef CONFIG_USER_ONLY
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update_psw_addr(s);
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gen_op_calc_cc(s);
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#endif
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}
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static inline uint64_t ld_code2(CPUS390XState *env, uint64_t pc)
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{
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return (uint64_t)cpu_lduw_code(env, pc);
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}
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static inline uint64_t ld_code4(CPUS390XState *env, uint64_t pc)
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{
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return (uint64_t)(uint32_t)cpu_ldl_code(env, pc);
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}
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static inline uint64_t ld_code6(CPUS390XState *env, uint64_t pc)
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{
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return (ld_code2(env, pc) << 32) | ld_code4(env, pc + 2);
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}
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static inline int get_mem_index(DisasContext *s)
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{
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switch (s->tb->flags & FLAG_MASK_ASC) {
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case PSW_ASC_PRIMARY >> 32:
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return 0;
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case PSW_ASC_SECONDARY >> 32:
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return 1;
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case PSW_ASC_HOME >> 32:
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return 2;
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default:
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tcg_abort();
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break;
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}
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}
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static void gen_exception(int excp)
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{
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TCGv_i32 tmp = tcg_const_i32(excp);
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gen_helper_exception(cpu_env, tmp);
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tcg_temp_free_i32(tmp);
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}
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static void gen_program_exception(DisasContext *s, int code)
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{
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TCGv_i32 tmp;
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/* Remember what pgm exeption this was. */
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tmp = tcg_const_i32(code);
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tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUS390XState, int_pgm_code));
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tcg_temp_free_i32(tmp);
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tmp = tcg_const_i32(s->next_pc - s->pc);
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tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUS390XState, int_pgm_ilen));
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tcg_temp_free_i32(tmp);
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/* Advance past instruction. */
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s->pc = s->next_pc;
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update_psw_addr(s);
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/* Save off cc. */
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gen_op_calc_cc(s);
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/* Trigger exception. */
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gen_exception(EXCP_PGM);
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/* End TB here. */
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s->is_jmp = DISAS_EXCP;
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}
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static inline void gen_illegal_opcode(DisasContext *s)
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{
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gen_program_exception(s, PGM_SPECIFICATION);
|
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}
|
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static inline void check_privileged(DisasContext *s)
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{
|
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if (s->tb->flags & (PSW_MASK_PSTATE >> 32)) {
|
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gen_program_exception(s, PGM_PRIVILEGED);
|
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}
|
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}
|
||
|
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static TCGv_i64 get_address(DisasContext *s, int x2, int b2, int d2)
|
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{
|
||
TCGv_i64 tmp;
|
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|
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/* 31-bitify the immediate part; register contents are dealt with below */
|
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if (!(s->tb->flags & FLAG_MASK_64)) {
|
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d2 &= 0x7fffffffUL;
|
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}
|
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|
||
if (x2) {
|
||
if (d2) {
|
||
tmp = tcg_const_i64(d2);
|
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tcg_gen_add_i64(tmp, tmp, regs[x2]);
|
||
} else {
|
||
tmp = load_reg(x2);
|
||
}
|
||
if (b2) {
|
||
tcg_gen_add_i64(tmp, tmp, regs[b2]);
|
||
}
|
||
} else if (b2) {
|
||
if (d2) {
|
||
tmp = tcg_const_i64(d2);
|
||
tcg_gen_add_i64(tmp, tmp, regs[b2]);
|
||
} else {
|
||
tmp = load_reg(b2);
|
||
}
|
||
} else {
|
||
tmp = tcg_const_i64(d2);
|
||
}
|
||
|
||
/* 31-bit mode mask if there are values loaded from registers */
|
||
if (!(s->tb->flags & FLAG_MASK_64) && (x2 || b2)) {
|
||
tcg_gen_andi_i64(tmp, tmp, 0x7fffffffUL);
|
||
}
|
||
|
||
return tmp;
|
||
}
|
||
|
||
static inline void gen_op_movi_cc(DisasContext *s, uint32_t val)
|
||
{
|
||
s->cc_op = CC_OP_CONST0 + val;
|
||
}
|
||
|
||
static void gen_op_update1_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 dst)
|
||
{
|
||
tcg_gen_discard_i64(cc_src);
|
||
tcg_gen_mov_i64(cc_dst, dst);
|
||
tcg_gen_discard_i64(cc_vr);
|
||
s->cc_op = op;
|
||
}
|
||
|
||
static void gen_op_update1_cc_i32(DisasContext *s, enum cc_op op, TCGv_i32 dst)
|
||
{
|
||
tcg_gen_discard_i64(cc_src);
|
||
tcg_gen_extu_i32_i64(cc_dst, dst);
|
||
tcg_gen_discard_i64(cc_vr);
|
||
s->cc_op = op;
|
||
}
|
||
|
||
static void gen_op_update2_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
|
||
TCGv_i64 dst)
|
||
{
|
||
tcg_gen_mov_i64(cc_src, src);
|
||
tcg_gen_mov_i64(cc_dst, dst);
|
||
tcg_gen_discard_i64(cc_vr);
|
||
s->cc_op = op;
|
||
}
|
||
|
||
static void gen_op_update2_cc_i32(DisasContext *s, enum cc_op op, TCGv_i32 src,
|
||
TCGv_i32 dst)
|
||
{
|
||
tcg_gen_extu_i32_i64(cc_src, src);
|
||
tcg_gen_extu_i32_i64(cc_dst, dst);
|
||
tcg_gen_discard_i64(cc_vr);
|
||
s->cc_op = op;
|
||
}
|
||
|
||
static void gen_op_update3_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
|
||
TCGv_i64 dst, TCGv_i64 vr)
|
||
{
|
||
tcg_gen_mov_i64(cc_src, src);
|
||
tcg_gen_mov_i64(cc_dst, dst);
|
||
tcg_gen_mov_i64(cc_vr, vr);
|
||
s->cc_op = op;
|
||
}
|
||
|
||
static inline void set_cc_nz_u32(DisasContext *s, TCGv_i32 val)
|
||
{
|
||
gen_op_update1_cc_i32(s, CC_OP_NZ, val);
|
||
}
|
||
|
||
static inline void set_cc_nz_u64(DisasContext *s, TCGv_i64 val)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ, val);
|
||
}
|
||
|
||
static inline void gen_set_cc_nz_f32(DisasContext *s, TCGv_i64 val)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ_F32, val);
|
||
}
|
||
|
||
static inline void gen_set_cc_nz_f64(DisasContext *s, TCGv_i64 val)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ_F64, val);
|
||
}
|
||
|
||
static inline void gen_set_cc_nz_f128(DisasContext *s, TCGv_i64 vh, TCGv_i64 vl)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_NZ_F128, vh, vl);
|
||
}
|
||
|
||
static inline void cmp_32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2,
|
||
enum cc_op cond)
|
||
{
|
||
gen_op_update2_cc_i32(s, cond, v1, v2);
|
||
}
|
||
|
||
static inline void cmp_64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2,
|
||
enum cc_op cond)
|
||
{
|
||
gen_op_update2_cc_i64(s, cond, v1, v2);
|
||
}
|
||
|
||
static inline void cmp_s32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2)
|
||
{
|
||
cmp_32(s, v1, v2, CC_OP_LTGT_32);
|
||
}
|
||
|
||
static inline void cmp_u32(DisasContext *s, TCGv_i32 v1, TCGv_i32 v2)
|
||
{
|
||
cmp_32(s, v1, v2, CC_OP_LTUGTU_32);
|
||
}
|
||
|
||
static inline void cmp_s32c(DisasContext *s, TCGv_i32 v1, int32_t v2)
|
||
{
|
||
/* XXX optimize for the constant? put it in s? */
|
||
TCGv_i32 tmp = tcg_const_i32(v2);
|
||
cmp_32(s, v1, tmp, CC_OP_LTGT_32);
|
||
tcg_temp_free_i32(tmp);
|
||
}
|
||
|
||
static inline void cmp_u32c(DisasContext *s, TCGv_i32 v1, uint32_t v2)
|
||
{
|
||
TCGv_i32 tmp = tcg_const_i32(v2);
|
||
cmp_32(s, v1, tmp, CC_OP_LTUGTU_32);
|
||
tcg_temp_free_i32(tmp);
|
||
}
|
||
|
||
static inline void cmp_s64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2)
|
||
{
|
||
cmp_64(s, v1, v2, CC_OP_LTGT_64);
|
||
}
|
||
|
||
static inline void cmp_u64(DisasContext *s, TCGv_i64 v1, TCGv_i64 v2)
|
||
{
|
||
cmp_64(s, v1, v2, CC_OP_LTUGTU_64);
|
||
}
|
||
|
||
static inline void cmp_s64c(DisasContext *s, TCGv_i64 v1, int64_t v2)
|
||
{
|
||
TCGv_i64 tmp = tcg_const_i64(v2);
|
||
cmp_s64(s, v1, tmp);
|
||
tcg_temp_free_i64(tmp);
|
||
}
|
||
|
||
static inline void cmp_u64c(DisasContext *s, TCGv_i64 v1, uint64_t v2)
|
||
{
|
||
TCGv_i64 tmp = tcg_const_i64(v2);
|
||
cmp_u64(s, v1, tmp);
|
||
tcg_temp_free_i64(tmp);
|
||
}
|
||
|
||
static inline void set_cc_s32(DisasContext *s, TCGv_i32 val)
|
||
{
|
||
gen_op_update1_cc_i32(s, CC_OP_LTGT0_32, val);
|
||
}
|
||
|
||
static inline void set_cc_s64(DisasContext *s, TCGv_i64 val)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_LTGT0_64, val);
|
||
}
|
||
|
||
/* CC value is in env->cc_op */
|
||
static inline void set_cc_static(DisasContext *s)
|
||
{
|
||
tcg_gen_discard_i64(cc_src);
|
||
tcg_gen_discard_i64(cc_dst);
|
||
tcg_gen_discard_i64(cc_vr);
|
||
s->cc_op = CC_OP_STATIC;
|
||
}
|
||
|
||
static inline void gen_op_set_cc_op(DisasContext *s)
|
||
{
|
||
if (s->cc_op != CC_OP_DYNAMIC && s->cc_op != CC_OP_STATIC) {
|
||
tcg_gen_movi_i32(cc_op, s->cc_op);
|
||
}
|
||
}
|
||
|
||
static inline void gen_update_cc_op(DisasContext *s)
|
||
{
|
||
gen_op_set_cc_op(s);
|
||
}
|
||
|
||
/* calculates cc into cc_op */
|
||
static void gen_op_calc_cc(DisasContext *s)
|
||
{
|
||
TCGv_i32 local_cc_op = tcg_const_i32(s->cc_op);
|
||
TCGv_i64 dummy = tcg_const_i64(0);
|
||
|
||
switch (s->cc_op) {
|
||
case CC_OP_CONST0:
|
||
case CC_OP_CONST1:
|
||
case CC_OP_CONST2:
|
||
case CC_OP_CONST3:
|
||
/* s->cc_op is the cc value */
|
||
tcg_gen_movi_i32(cc_op, s->cc_op - CC_OP_CONST0);
|
||
break;
|
||
case CC_OP_STATIC:
|
||
/* env->cc_op already is the cc value */
|
||
break;
|
||
case CC_OP_NZ:
|
||
case CC_OP_ABS_64:
|
||
case CC_OP_NABS_64:
|
||
case CC_OP_ABS_32:
|
||
case CC_OP_NABS_32:
|
||
case CC_OP_LTGT0_32:
|
||
case CC_OP_LTGT0_64:
|
||
case CC_OP_COMP_32:
|
||
case CC_OP_COMP_64:
|
||
case CC_OP_NZ_F32:
|
||
case CC_OP_NZ_F64:
|
||
case CC_OP_FLOGR:
|
||
/* 1 argument */
|
||
gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, dummy, cc_dst, dummy);
|
||
break;
|
||
case CC_OP_ICM:
|
||
case CC_OP_LTGT_32:
|
||
case CC_OP_LTGT_64:
|
||
case CC_OP_LTUGTU_32:
|
||
case CC_OP_LTUGTU_64:
|
||
case CC_OP_TM_32:
|
||
case CC_OP_TM_64:
|
||
case CC_OP_SLA_32:
|
||
case CC_OP_SLA_64:
|
||
case CC_OP_NZ_F128:
|
||
/* 2 arguments */
|
||
gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, cc_src, cc_dst, dummy);
|
||
break;
|
||
case CC_OP_ADD_64:
|
||
case CC_OP_ADDU_64:
|
||
case CC_OP_ADDC_64:
|
||
case CC_OP_SUB_64:
|
||
case CC_OP_SUBU_64:
|
||
case CC_OP_SUBB_64:
|
||
case CC_OP_ADD_32:
|
||
case CC_OP_ADDU_32:
|
||
case CC_OP_ADDC_32:
|
||
case CC_OP_SUB_32:
|
||
case CC_OP_SUBU_32:
|
||
case CC_OP_SUBB_32:
|
||
/* 3 arguments */
|
||
gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, cc_src, cc_dst, cc_vr);
|
||
break;
|
||
case CC_OP_DYNAMIC:
|
||
/* unknown operation - assume 3 arguments and cc_op in env */
|
||
gen_helper_calc_cc(cc_op, cpu_env, cc_op, cc_src, cc_dst, cc_vr);
|
||
break;
|
||
default:
|
||
tcg_abort();
|
||
}
|
||
|
||
tcg_temp_free_i32(local_cc_op);
|
||
tcg_temp_free_i64(dummy);
|
||
|
||
/* We now have cc in cc_op as constant */
|
||
set_cc_static(s);
|
||
}
|
||
|
||
static inline void decode_rr(DisasContext *s, uint64_t insn, int *r1, int *r2)
|
||
{
|
||
debug_insn(insn);
|
||
|
||
*r1 = (insn >> 4) & 0xf;
|
||
*r2 = insn & 0xf;
|
||
}
|
||
|
||
static inline TCGv_i64 decode_rx(DisasContext *s, uint64_t insn, int *r1,
|
||
int *x2, int *b2, int *d2)
|
||
{
|
||
debug_insn(insn);
|
||
|
||
*r1 = (insn >> 20) & 0xf;
|
||
*x2 = (insn >> 16) & 0xf;
|
||
*b2 = (insn >> 12) & 0xf;
|
||
*d2 = insn & 0xfff;
|
||
|
||
return get_address(s, *x2, *b2, *d2);
|
||
}
|
||
|
||
static inline void decode_rs(DisasContext *s, uint64_t insn, int *r1, int *r3,
|
||
int *b2, int *d2)
|
||
{
|
||
debug_insn(insn);
|
||
|
||
*r1 = (insn >> 20) & 0xf;
|
||
/* aka m3 */
|
||
*r3 = (insn >> 16) & 0xf;
|
||
*b2 = (insn >> 12) & 0xf;
|
||
*d2 = insn & 0xfff;
|
||
}
|
||
|
||
static inline TCGv_i64 decode_si(DisasContext *s, uint64_t insn, int *i2,
|
||
int *b1, int *d1)
|
||
{
|
||
debug_insn(insn);
|
||
|
||
*i2 = (insn >> 16) & 0xff;
|
||
*b1 = (insn >> 12) & 0xf;
|
||
*d1 = insn & 0xfff;
|
||
|
||
return get_address(s, 0, *b1, *d1);
|
||
}
|
||
|
||
static int use_goto_tb(DisasContext *s, uint64_t dest)
|
||
{
|
||
/* NOTE: we handle the case where the TB spans two pages here */
|
||
return (((dest & TARGET_PAGE_MASK) == (s->tb->pc & TARGET_PAGE_MASK)
|
||
|| (dest & TARGET_PAGE_MASK) == ((s->pc - 1) & TARGET_PAGE_MASK))
|
||
&& !s->singlestep_enabled
|
||
&& !(s->tb->cflags & CF_LAST_IO));
|
||
}
|
||
|
||
static inline void gen_goto_tb(DisasContext *s, int tb_num, target_ulong pc)
|
||
{
|
||
gen_update_cc_op(s);
|
||
|
||
if (use_goto_tb(s, pc)) {
|
||
tcg_gen_goto_tb(tb_num);
|
||
tcg_gen_movi_i64(psw_addr, pc);
|
||
tcg_gen_exit_tb((tcg_target_long)s->tb + tb_num);
|
||
} else {
|
||
/* jump to another page: currently not optimized */
|
||
tcg_gen_movi_i64(psw_addr, pc);
|
||
tcg_gen_exit_tb(0);
|
||
}
|
||
}
|
||
|
||
static inline void account_noninline_branch(DisasContext *s, int cc_op)
|
||
{
|
||
#ifdef DEBUG_INLINE_BRANCHES
|
||
inline_branch_miss[cc_op]++;
|
||
#endif
|
||
}
|
||
|
||
static inline void account_inline_branch(DisasContext *s, int cc_op)
|
||
{
|
||
#ifdef DEBUG_INLINE_BRANCHES
|
||
inline_branch_hit[cc_op]++;
|
||
#endif
|
||
}
|
||
|
||
/* Table of mask values to comparison codes, given a comparison as input.
|
||
For a true comparison CC=3 will never be set, but we treat this
|
||
conservatively for possible use when CC=3 indicates overflow. */
|
||
static const TCGCond ltgt_cond[16] = {
|
||
TCG_COND_NEVER, TCG_COND_NEVER, /* | | | x */
|
||
TCG_COND_GT, TCG_COND_NEVER, /* | | GT | x */
|
||
TCG_COND_LT, TCG_COND_NEVER, /* | LT | | x */
|
||
TCG_COND_NE, TCG_COND_NEVER, /* | LT | GT | x */
|
||
TCG_COND_EQ, TCG_COND_NEVER, /* EQ | | | x */
|
||
TCG_COND_GE, TCG_COND_NEVER, /* EQ | | GT | x */
|
||
TCG_COND_LE, TCG_COND_NEVER, /* EQ | LT | | x */
|
||
TCG_COND_ALWAYS, TCG_COND_ALWAYS, /* EQ | LT | GT | x */
|
||
};
|
||
|
||
/* Table of mask values to comparison codes, given a logic op as input.
|
||
For such, only CC=0 and CC=1 should be possible. */
|
||
static const TCGCond nz_cond[16] = {
|
||
/* | | x | x */
|
||
TCG_COND_NEVER, TCG_COND_NEVER, TCG_COND_NEVER, TCG_COND_NEVER,
|
||
/* | NE | x | x */
|
||
TCG_COND_NE, TCG_COND_NE, TCG_COND_NE, TCG_COND_NE,
|
||
/* EQ | | x | x */
|
||
TCG_COND_EQ, TCG_COND_EQ, TCG_COND_EQ, TCG_COND_EQ,
|
||
/* EQ | NE | x | x */
|
||
TCG_COND_ALWAYS, TCG_COND_ALWAYS, TCG_COND_ALWAYS, TCG_COND_ALWAYS,
|
||
};
|
||
|
||
/* Interpret MASK in terms of S->CC_OP, and fill in C with all the
|
||
details required to generate a TCG comparison. */
|
||
static void disas_jcc(DisasContext *s, DisasCompare *c, uint32_t mask)
|
||
{
|
||
TCGCond cond;
|
||
enum cc_op old_cc_op = s->cc_op;
|
||
|
||
if (mask == 15 || mask == 0) {
|
||
c->cond = (mask ? TCG_COND_ALWAYS : TCG_COND_NEVER);
|
||
c->u.s32.a = cc_op;
|
||
c->u.s32.b = cc_op;
|
||
c->g1 = c->g2 = true;
|
||
c->is_64 = false;
|
||
return;
|
||
}
|
||
|
||
/* Find the TCG condition for the mask + cc op. */
|
||
switch (old_cc_op) {
|
||
case CC_OP_LTGT0_32:
|
||
case CC_OP_LTGT0_64:
|
||
case CC_OP_LTGT_32:
|
||
case CC_OP_LTGT_64:
|
||
cond = ltgt_cond[mask];
|
||
if (cond == TCG_COND_NEVER) {
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
case CC_OP_LTUGTU_32:
|
||
case CC_OP_LTUGTU_64:
|
||
cond = tcg_unsigned_cond(ltgt_cond[mask]);
|
||
if (cond == TCG_COND_NEVER) {
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
case CC_OP_NZ:
|
||
cond = nz_cond[mask];
|
||
if (cond == TCG_COND_NEVER) {
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
case CC_OP_TM_32:
|
||
case CC_OP_TM_64:
|
||
switch (mask) {
|
||
case 8:
|
||
cond = TCG_COND_EQ;
|
||
break;
|
||
case 4 | 2 | 1:
|
||
cond = TCG_COND_NE;
|
||
break;
|
||
default:
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
case CC_OP_ICM:
|
||
switch (mask) {
|
||
case 8:
|
||
cond = TCG_COND_EQ;
|
||
break;
|
||
case 4 | 2 | 1:
|
||
case 4 | 2:
|
||
cond = TCG_COND_NE;
|
||
break;
|
||
default:
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
case CC_OP_FLOGR:
|
||
switch (mask & 0xa) {
|
||
case 8: /* src == 0 -> no one bit found */
|
||
cond = TCG_COND_EQ;
|
||
break;
|
||
case 2: /* src != 0 -> one bit found */
|
||
cond = TCG_COND_NE;
|
||
break;
|
||
default:
|
||
goto do_dynamic;
|
||
}
|
||
account_inline_branch(s, old_cc_op);
|
||
break;
|
||
|
||
default:
|
||
do_dynamic:
|
||
/* Calculate cc value. */
|
||
gen_op_calc_cc(s);
|
||
/* FALLTHRU */
|
||
|
||
case CC_OP_STATIC:
|
||
/* Jump based on CC. We'll load up the real cond below;
|
||
the assignment here merely avoids a compiler warning. */
|
||
account_noninline_branch(s, old_cc_op);
|
||
old_cc_op = CC_OP_STATIC;
|
||
cond = TCG_COND_NEVER;
|
||
break;
|
||
}
|
||
|
||
/* Load up the arguments of the comparison. */
|
||
c->is_64 = true;
|
||
c->g1 = c->g2 = false;
|
||
switch (old_cc_op) {
|
||
case CC_OP_LTGT0_32:
|
||
c->is_64 = false;
|
||
c->u.s32.a = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(c->u.s32.a, cc_dst);
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
break;
|
||
case CC_OP_LTGT_32:
|
||
case CC_OP_LTUGTU_32:
|
||
c->is_64 = false;
|
||
c->u.s32.a = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(c->u.s32.a, cc_src);
|
||
c->u.s32.b = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(c->u.s32.b, cc_dst);
|
||
break;
|
||
|
||
case CC_OP_LTGT0_64:
|
||
case CC_OP_NZ:
|
||
case CC_OP_FLOGR:
|
||
c->u.s64.a = cc_dst;
|
||
c->u.s64.b = tcg_const_i64(0);
|
||
c->g1 = true;
|
||
break;
|
||
case CC_OP_LTGT_64:
|
||
case CC_OP_LTUGTU_64:
|
||
c->u.s64.a = cc_src;
|
||
c->u.s64.b = cc_dst;
|
||
c->g1 = c->g2 = true;
|
||
break;
|
||
|
||
case CC_OP_TM_32:
|
||
case CC_OP_TM_64:
|
||
case CC_OP_ICM:
|
||
c->u.s64.a = tcg_temp_new_i64();
|
||
c->u.s64.b = tcg_const_i64(0);
|
||
tcg_gen_and_i64(c->u.s64.a, cc_src, cc_dst);
|
||
break;
|
||
|
||
case CC_OP_STATIC:
|
||
c->is_64 = false;
|
||
c->u.s32.a = cc_op;
|
||
c->g1 = true;
|
||
switch (mask) {
|
||
case 0x8 | 0x4 | 0x2: /* cc != 3 */
|
||
cond = TCG_COND_NE;
|
||
c->u.s32.b = tcg_const_i32(3);
|
||
break;
|
||
case 0x8 | 0x4 | 0x1: /* cc != 2 */
|
||
cond = TCG_COND_NE;
|
||
c->u.s32.b = tcg_const_i32(2);
|
||
break;
|
||
case 0x8 | 0x2 | 0x1: /* cc != 1 */
|
||
cond = TCG_COND_NE;
|
||
c->u.s32.b = tcg_const_i32(1);
|
||
break;
|
||
case 0x8 | 0x2: /* cc == 0 || cc == 2 => (cc & 1) == 0 */
|
||
cond = TCG_COND_EQ;
|
||
c->g1 = false;
|
||
c->u.s32.a = tcg_temp_new_i32();
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
tcg_gen_andi_i32(c->u.s32.a, cc_op, 1);
|
||
break;
|
||
case 0x8 | 0x4: /* cc < 2 */
|
||
cond = TCG_COND_LTU;
|
||
c->u.s32.b = tcg_const_i32(2);
|
||
break;
|
||
case 0x8: /* cc == 0 */
|
||
cond = TCG_COND_EQ;
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
break;
|
||
case 0x4 | 0x2 | 0x1: /* cc != 0 */
|
||
cond = TCG_COND_NE;
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
break;
|
||
case 0x4 | 0x1: /* cc == 1 || cc == 3 => (cc & 1) != 0 */
|
||
cond = TCG_COND_NE;
|
||
c->g1 = false;
|
||
c->u.s32.a = tcg_temp_new_i32();
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
tcg_gen_andi_i32(c->u.s32.a, cc_op, 1);
|
||
break;
|
||
case 0x4: /* cc == 1 */
|
||
cond = TCG_COND_EQ;
|
||
c->u.s32.b = tcg_const_i32(1);
|
||
break;
|
||
case 0x2 | 0x1: /* cc > 1 */
|
||
cond = TCG_COND_GTU;
|
||
c->u.s32.b = tcg_const_i32(1);
|
||
break;
|
||
case 0x2: /* cc == 2 */
|
||
cond = TCG_COND_EQ;
|
||
c->u.s32.b = tcg_const_i32(2);
|
||
break;
|
||
case 0x1: /* cc == 3 */
|
||
cond = TCG_COND_EQ;
|
||
c->u.s32.b = tcg_const_i32(3);
|
||
break;
|
||
default:
|
||
/* CC is masked by something else: (8 >> cc) & mask. */
|
||
cond = TCG_COND_NE;
|
||
c->g1 = false;
|
||
c->u.s32.a = tcg_const_i32(8);
|
||
c->u.s32.b = tcg_const_i32(0);
|
||
tcg_gen_shr_i32(c->u.s32.a, c->u.s32.a, cc_op);
|
||
tcg_gen_andi_i32(c->u.s32.a, c->u.s32.a, mask);
|
||
break;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
c->cond = cond;
|
||
}
|
||
|
||
static void free_compare(DisasCompare *c)
|
||
{
|
||
if (!c->g1) {
|
||
if (c->is_64) {
|
||
tcg_temp_free_i64(c->u.s64.a);
|
||
} else {
|
||
tcg_temp_free_i32(c->u.s32.a);
|
||
}
|
||
}
|
||
if (!c->g2) {
|
||
if (c->is_64) {
|
||
tcg_temp_free_i64(c->u.s64.b);
|
||
} else {
|
||
tcg_temp_free_i32(c->u.s32.b);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
|
||
uint32_t insn)
|
||
{
|
||
#ifndef CONFIG_USER_ONLY
|
||
TCGv_i64 tmp, tmp2, tmp3;
|
||
TCGv_i32 tmp32_1, tmp32_2;
|
||
int r1, r2;
|
||
int r3, d2, b2;
|
||
|
||
r1 = (insn >> 4) & 0xf;
|
||
r2 = insn & 0xf;
|
||
|
||
LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
|
||
|
||
switch (op) {
|
||
case 0x78: /* STCKE D2(B2) [S] */
|
||
/* Store Clock Extended */
|
||
decode_rs(s, insn, &r1, &r3, &b2, &d2);
|
||
tmp = get_address(s, 0, b2, d2);
|
||
potential_page_fault(s);
|
||
gen_helper_stcke(cc_op, cpu_env, tmp);
|
||
set_cc_static(s);
|
||
tcg_temp_free_i64(tmp);
|
||
break;
|
||
case 0x79: /* SACF D2(B2) [S] */
|
||
/* Set Address Space Control Fast */
|
||
check_privileged(s);
|
||
decode_rs(s, insn, &r1, &r3, &b2, &d2);
|
||
tmp = get_address(s, 0, b2, d2);
|
||
potential_page_fault(s);
|
||
gen_helper_sacf(cpu_env, tmp);
|
||
tcg_temp_free_i64(tmp);
|
||
/* addressing mode has changed, so end the block */
|
||
s->pc = s->next_pc;
|
||
update_psw_addr(s);
|
||
s->is_jmp = DISAS_JUMP;
|
||
break;
|
||
case 0x7d: /* STSI D2,(B2) [S] */
|
||
check_privileged(s);
|
||
decode_rs(s, insn, &r1, &r3, &b2, &d2);
|
||
tmp = get_address(s, 0, b2, d2);
|
||
tmp32_1 = load_reg32(0);
|
||
tmp32_2 = load_reg32(1);
|
||
potential_page_fault(s);
|
||
gen_helper_stsi(cc_op, cpu_env, tmp, tmp32_1, tmp32_2);
|
||
set_cc_static(s);
|
||
tcg_temp_free_i64(tmp);
|
||
tcg_temp_free_i32(tmp32_1);
|
||
tcg_temp_free_i32(tmp32_2);
|
||
break;
|
||
case 0xb1: /* STFL D2(B2) [S] */
|
||
/* Store Facility List (CPU features) at 200 */
|
||
check_privileged(s);
|
||
tmp2 = tcg_const_i64(0xc0000000);
|
||
tmp = tcg_const_i64(200);
|
||
tcg_gen_qemu_st32(tmp2, tmp, get_mem_index(s));
|
||
tcg_temp_free_i64(tmp2);
|
||
tcg_temp_free_i64(tmp);
|
||
break;
|
||
case 0xb2: /* LPSWE D2(B2) [S] */
|
||
/* Load PSW Extended */
|
||
check_privileged(s);
|
||
decode_rs(s, insn, &r1, &r3, &b2, &d2);
|
||
tmp = get_address(s, 0, b2, d2);
|
||
tmp2 = tcg_temp_new_i64();
|
||
tmp3 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld64(tmp2, tmp, get_mem_index(s));
|
||
tcg_gen_addi_i64(tmp, tmp, 8);
|
||
tcg_gen_qemu_ld64(tmp3, tmp, get_mem_index(s));
|
||
gen_helper_load_psw(cpu_env, tmp2, tmp3);
|
||
/* we need to keep cc_op intact */
|
||
s->is_jmp = DISAS_JUMP;
|
||
tcg_temp_free_i64(tmp);
|
||
tcg_temp_free_i64(tmp2);
|
||
tcg_temp_free_i64(tmp3);
|
||
break;
|
||
case 0x20: /* SERVC R1,R2 [RRE] */
|
||
/* SCLP Service call (PV hypercall) */
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
tmp32_1 = load_reg32(r2);
|
||
tmp = load_reg(r1);
|
||
gen_helper_servc(cc_op, cpu_env, tmp32_1, tmp);
|
||
set_cc_static(s);
|
||
tcg_temp_free_i32(tmp32_1);
|
||
tcg_temp_free_i64(tmp);
|
||
break;
|
||
default:
|
||
#endif
|
||
LOG_DISAS("illegal b2 operation 0x%x\n", op);
|
||
gen_illegal_opcode(s);
|
||
#ifndef CONFIG_USER_ONLY
|
||
break;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
static void disas_s390_insn(CPUS390XState *env, DisasContext *s)
|
||
{
|
||
unsigned char opc;
|
||
uint64_t insn;
|
||
int op;
|
||
|
||
opc = cpu_ldub_code(env, s->pc);
|
||
LOG_DISAS("opc 0x%x\n", opc);
|
||
|
||
switch (opc) {
|
||
case 0xb2:
|
||
insn = ld_code4(env, s->pc);
|
||
op = (insn >> 16) & 0xff;
|
||
disas_b2(env, s, op, insn);
|
||
break;
|
||
default:
|
||
qemu_log_mask(LOG_UNIMP, "unimplemented opcode 0x%x\n", opc);
|
||
gen_illegal_opcode(s);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* Define the insn format enumeration. */
|
||
#define F0(N) FMT_##N,
|
||
#define F1(N, X1) F0(N)
|
||
#define F2(N, X1, X2) F0(N)
|
||
#define F3(N, X1, X2, X3) F0(N)
|
||
#define F4(N, X1, X2, X3, X4) F0(N)
|
||
#define F5(N, X1, X2, X3, X4, X5) F0(N)
|
||
|
||
typedef enum {
|
||
#include "insn-format.def"
|
||
} DisasFormat;
|
||
|
||
#undef F0
|
||
#undef F1
|
||
#undef F2
|
||
#undef F3
|
||
#undef F4
|
||
#undef F5
|
||
|
||
/* Define a structure to hold the decoded fields. We'll store each inside
|
||
an array indexed by an enum. In order to conserve memory, we'll arrange
|
||
for fields that do not exist at the same time to overlap, thus the "C"
|
||
for compact. For checking purposes there is an "O" for original index
|
||
as well that will be applied to availability bitmaps. */
|
||
|
||
enum DisasFieldIndexO {
|
||
FLD_O_r1,
|
||
FLD_O_r2,
|
||
FLD_O_r3,
|
||
FLD_O_m1,
|
||
FLD_O_m3,
|
||
FLD_O_m4,
|
||
FLD_O_b1,
|
||
FLD_O_b2,
|
||
FLD_O_b4,
|
||
FLD_O_d1,
|
||
FLD_O_d2,
|
||
FLD_O_d4,
|
||
FLD_O_x2,
|
||
FLD_O_l1,
|
||
FLD_O_l2,
|
||
FLD_O_i1,
|
||
FLD_O_i2,
|
||
FLD_O_i3,
|
||
FLD_O_i4,
|
||
FLD_O_i5
|
||
};
|
||
|
||
enum DisasFieldIndexC {
|
||
FLD_C_r1 = 0,
|
||
FLD_C_m1 = 0,
|
||
FLD_C_b1 = 0,
|
||
FLD_C_i1 = 0,
|
||
|
||
FLD_C_r2 = 1,
|
||
FLD_C_b2 = 1,
|
||
FLD_C_i2 = 1,
|
||
|
||
FLD_C_r3 = 2,
|
||
FLD_C_m3 = 2,
|
||
FLD_C_i3 = 2,
|
||
|
||
FLD_C_m4 = 3,
|
||
FLD_C_b4 = 3,
|
||
FLD_C_i4 = 3,
|
||
FLD_C_l1 = 3,
|
||
|
||
FLD_C_i5 = 4,
|
||
FLD_C_d1 = 4,
|
||
|
||
FLD_C_d2 = 5,
|
||
|
||
FLD_C_d4 = 6,
|
||
FLD_C_x2 = 6,
|
||
FLD_C_l2 = 6,
|
||
|
||
NUM_C_FIELD = 7
|
||
};
|
||
|
||
struct DisasFields {
|
||
unsigned op:8;
|
||
unsigned op2:8;
|
||
unsigned presentC:16;
|
||
unsigned int presentO;
|
||
int c[NUM_C_FIELD];
|
||
};
|
||
|
||
/* This is the way fields are to be accessed out of DisasFields. */
|
||
#define have_field(S, F) have_field1((S), FLD_O_##F)
|
||
#define get_field(S, F) get_field1((S), FLD_O_##F, FLD_C_##F)
|
||
|
||
static bool have_field1(const DisasFields *f, enum DisasFieldIndexO c)
|
||
{
|
||
return (f->presentO >> c) & 1;
|
||
}
|
||
|
||
static int get_field1(const DisasFields *f, enum DisasFieldIndexO o,
|
||
enum DisasFieldIndexC c)
|
||
{
|
||
assert(have_field1(f, o));
|
||
return f->c[c];
|
||
}
|
||
|
||
/* Describe the layout of each field in each format. */
|
||
typedef struct DisasField {
|
||
unsigned int beg:8;
|
||
unsigned int size:8;
|
||
unsigned int type:2;
|
||
unsigned int indexC:6;
|
||
enum DisasFieldIndexO indexO:8;
|
||
} DisasField;
|
||
|
||
typedef struct DisasFormatInfo {
|
||
DisasField op[NUM_C_FIELD];
|
||
} DisasFormatInfo;
|
||
|
||
#define R(N, B) { B, 4, 0, FLD_C_r##N, FLD_O_r##N }
|
||
#define M(N, B) { B, 4, 0, FLD_C_m##N, FLD_O_m##N }
|
||
#define BD(N, BB, BD) { BB, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
|
||
{ BD, 12, 0, FLD_C_d##N, FLD_O_d##N }
|
||
#define BXD(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
|
||
{ 12, 4, 0, FLD_C_x##N, FLD_O_x##N }, \
|
||
{ 20, 12, 0, FLD_C_d##N, FLD_O_d##N }
|
||
#define BDL(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
|
||
{ 20, 20, 2, FLD_C_d##N, FLD_O_d##N }
|
||
#define BXDL(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
|
||
{ 12, 4, 0, FLD_C_x##N, FLD_O_x##N }, \
|
||
{ 20, 20, 2, FLD_C_d##N, FLD_O_d##N }
|
||
#define I(N, B, S) { B, S, 1, FLD_C_i##N, FLD_O_i##N }
|
||
#define L(N, B, S) { B, S, 0, FLD_C_l##N, FLD_O_l##N }
|
||
|
||
#define F0(N) { { } },
|
||
#define F1(N, X1) { { X1 } },
|
||
#define F2(N, X1, X2) { { X1, X2 } },
|
||
#define F3(N, X1, X2, X3) { { X1, X2, X3 } },
|
||
#define F4(N, X1, X2, X3, X4) { { X1, X2, X3, X4 } },
|
||
#define F5(N, X1, X2, X3, X4, X5) { { X1, X2, X3, X4, X5 } },
|
||
|
||
static const DisasFormatInfo format_info[] = {
|
||
#include "insn-format.def"
|
||
};
|
||
|
||
#undef F0
|
||
#undef F1
|
||
#undef F2
|
||
#undef F3
|
||
#undef F4
|
||
#undef F5
|
||
#undef R
|
||
#undef M
|
||
#undef BD
|
||
#undef BXD
|
||
#undef BDL
|
||
#undef BXDL
|
||
#undef I
|
||
#undef L
|
||
|
||
/* Generally, we'll extract operands into this structures, operate upon
|
||
them, and store them back. See the "in1", "in2", "prep", "wout" sets
|
||
of routines below for more details. */
|
||
typedef struct {
|
||
bool g_out, g_out2, g_in1, g_in2;
|
||
TCGv_i64 out, out2, in1, in2;
|
||
TCGv_i64 addr1;
|
||
} DisasOps;
|
||
|
||
/* Return values from translate_one, indicating the state of the TB. */
|
||
typedef enum {
|
||
/* Continue the TB. */
|
||
NO_EXIT,
|
||
/* We have emitted one or more goto_tb. No fixup required. */
|
||
EXIT_GOTO_TB,
|
||
/* We are not using a goto_tb (for whatever reason), but have updated
|
||
the PC (for whatever reason), so there's no need to do it again on
|
||
exiting the TB. */
|
||
EXIT_PC_UPDATED,
|
||
/* We are exiting the TB, but have neither emitted a goto_tb, nor
|
||
updated the PC for the next instruction to be executed. */
|
||
EXIT_PC_STALE,
|
||
/* We are ending the TB with a noreturn function call, e.g. longjmp.
|
||
No following code will be executed. */
|
||
EXIT_NORETURN,
|
||
} ExitStatus;
|
||
|
||
typedef enum DisasFacility {
|
||
FAC_Z, /* zarch (default) */
|
||
FAC_CASS, /* compare and swap and store */
|
||
FAC_CASS2, /* compare and swap and store 2*/
|
||
FAC_DFP, /* decimal floating point */
|
||
FAC_DFPR, /* decimal floating point rounding */
|
||
FAC_DO, /* distinct operands */
|
||
FAC_EE, /* execute extensions */
|
||
FAC_EI, /* extended immediate */
|
||
FAC_FPE, /* floating point extension */
|
||
FAC_FPSSH, /* floating point support sign handling */
|
||
FAC_FPRGR, /* FPR-GR transfer */
|
||
FAC_GIE, /* general instructions extension */
|
||
FAC_HFP_MA, /* HFP multiply-and-add/subtract */
|
||
FAC_HW, /* high-word */
|
||
FAC_IEEEE_SIM, /* IEEE exception sumilation */
|
||
FAC_LOC, /* load/store on condition */
|
||
FAC_LD, /* long displacement */
|
||
FAC_PC, /* population count */
|
||
FAC_SCF, /* store clock fast */
|
||
FAC_SFLE, /* store facility list extended */
|
||
} DisasFacility;
|
||
|
||
struct DisasInsn {
|
||
unsigned opc:16;
|
||
DisasFormat fmt:6;
|
||
DisasFacility fac:6;
|
||
|
||
const char *name;
|
||
|
||
void (*help_in1)(DisasContext *, DisasFields *, DisasOps *);
|
||
void (*help_in2)(DisasContext *, DisasFields *, DisasOps *);
|
||
void (*help_prep)(DisasContext *, DisasFields *, DisasOps *);
|
||
void (*help_wout)(DisasContext *, DisasFields *, DisasOps *);
|
||
void (*help_cout)(DisasContext *, DisasOps *);
|
||
ExitStatus (*help_op)(DisasContext *, DisasOps *);
|
||
|
||
uint64_t data;
|
||
};
|
||
|
||
/* ====================================================================== */
|
||
/* Miscelaneous helpers, used by several operations. */
|
||
|
||
static void help_l2_shift(DisasContext *s, DisasFields *f,
|
||
DisasOps *o, int mask)
|
||
{
|
||
int b2 = get_field(f, b2);
|
||
int d2 = get_field(f, d2);
|
||
|
||
if (b2 == 0) {
|
||
o->in2 = tcg_const_i64(d2 & mask);
|
||
} else {
|
||
o->in2 = get_address(s, 0, b2, d2);
|
||
tcg_gen_andi_i64(o->in2, o->in2, mask);
|
||
}
|
||
}
|
||
|
||
static ExitStatus help_goto_direct(DisasContext *s, uint64_t dest)
|
||
{
|
||
if (dest == s->next_pc) {
|
||
return NO_EXIT;
|
||
}
|
||
if (use_goto_tb(s, dest)) {
|
||
gen_update_cc_op(s);
|
||
tcg_gen_goto_tb(0);
|
||
tcg_gen_movi_i64(psw_addr, dest);
|
||
tcg_gen_exit_tb((tcg_target_long)s->tb);
|
||
return EXIT_GOTO_TB;
|
||
} else {
|
||
tcg_gen_movi_i64(psw_addr, dest);
|
||
return EXIT_PC_UPDATED;
|
||
}
|
||
}
|
||
|
||
static ExitStatus help_branch(DisasContext *s, DisasCompare *c,
|
||
bool is_imm, int imm, TCGv_i64 cdest)
|
||
{
|
||
ExitStatus ret;
|
||
uint64_t dest = s->pc + 2 * imm;
|
||
int lab;
|
||
|
||
/* Take care of the special cases first. */
|
||
if (c->cond == TCG_COND_NEVER) {
|
||
ret = NO_EXIT;
|
||
goto egress;
|
||
}
|
||
if (is_imm) {
|
||
if (dest == s->next_pc) {
|
||
/* Branch to next. */
|
||
ret = NO_EXIT;
|
||
goto egress;
|
||
}
|
||
if (c->cond == TCG_COND_ALWAYS) {
|
||
ret = help_goto_direct(s, dest);
|
||
goto egress;
|
||
}
|
||
} else {
|
||
if (TCGV_IS_UNUSED_I64(cdest)) {
|
||
/* E.g. bcr %r0 -> no branch. */
|
||
ret = NO_EXIT;
|
||
goto egress;
|
||
}
|
||
if (c->cond == TCG_COND_ALWAYS) {
|
||
tcg_gen_mov_i64(psw_addr, cdest);
|
||
ret = EXIT_PC_UPDATED;
|
||
goto egress;
|
||
}
|
||
}
|
||
|
||
if (use_goto_tb(s, s->next_pc)) {
|
||
if (is_imm && use_goto_tb(s, dest)) {
|
||
/* Both exits can use goto_tb. */
|
||
gen_update_cc_op(s);
|
||
|
||
lab = gen_new_label();
|
||
if (c->is_64) {
|
||
tcg_gen_brcond_i64(c->cond, c->u.s64.a, c->u.s64.b, lab);
|
||
} else {
|
||
tcg_gen_brcond_i32(c->cond, c->u.s32.a, c->u.s32.b, lab);
|
||
}
|
||
|
||
/* Branch not taken. */
|
||
tcg_gen_goto_tb(0);
|
||
tcg_gen_movi_i64(psw_addr, s->next_pc);
|
||
tcg_gen_exit_tb((tcg_target_long)s->tb + 0);
|
||
|
||
/* Branch taken. */
|
||
gen_set_label(lab);
|
||
tcg_gen_goto_tb(1);
|
||
tcg_gen_movi_i64(psw_addr, dest);
|
||
tcg_gen_exit_tb((tcg_target_long)s->tb + 1);
|
||
|
||
ret = EXIT_GOTO_TB;
|
||
} else {
|
||
/* Fallthru can use goto_tb, but taken branch cannot. */
|
||
/* Store taken branch destination before the brcond. This
|
||
avoids having to allocate a new local temp to hold it.
|
||
We'll overwrite this in the not taken case anyway. */
|
||
if (!is_imm) {
|
||
tcg_gen_mov_i64(psw_addr, cdest);
|
||
}
|
||
|
||
lab = gen_new_label();
|
||
if (c->is_64) {
|
||
tcg_gen_brcond_i64(c->cond, c->u.s64.a, c->u.s64.b, lab);
|
||
} else {
|
||
tcg_gen_brcond_i32(c->cond, c->u.s32.a, c->u.s32.b, lab);
|
||
}
|
||
|
||
/* Branch not taken. */
|
||
gen_update_cc_op(s);
|
||
tcg_gen_goto_tb(0);
|
||
tcg_gen_movi_i64(psw_addr, s->next_pc);
|
||
tcg_gen_exit_tb((tcg_target_long)s->tb + 0);
|
||
|
||
gen_set_label(lab);
|
||
if (is_imm) {
|
||
tcg_gen_movi_i64(psw_addr, dest);
|
||
}
|
||
ret = EXIT_PC_UPDATED;
|
||
}
|
||
} else {
|
||
/* Fallthru cannot use goto_tb. This by itself is vanishingly rare.
|
||
Most commonly we're single-stepping or some other condition that
|
||
disables all use of goto_tb. Just update the PC and exit. */
|
||
|
||
TCGv_i64 next = tcg_const_i64(s->next_pc);
|
||
if (is_imm) {
|
||
cdest = tcg_const_i64(dest);
|
||
}
|
||
|
||
if (c->is_64) {
|
||
tcg_gen_movcond_i64(c->cond, psw_addr, c->u.s64.a, c->u.s64.b,
|
||
cdest, next);
|
||
} else {
|
||
TCGv_i32 t0 = tcg_temp_new_i32();
|
||
TCGv_i64 t1 = tcg_temp_new_i64();
|
||
TCGv_i64 z = tcg_const_i64(0);
|
||
tcg_gen_setcond_i32(c->cond, t0, c->u.s32.a, c->u.s32.b);
|
||
tcg_gen_extu_i32_i64(t1, t0);
|
||
tcg_temp_free_i32(t0);
|
||
tcg_gen_movcond_i64(TCG_COND_NE, psw_addr, t1, z, cdest, next);
|
||
tcg_temp_free_i64(t1);
|
||
tcg_temp_free_i64(z);
|
||
}
|
||
|
||
if (is_imm) {
|
||
tcg_temp_free_i64(cdest);
|
||
}
|
||
tcg_temp_free_i64(next);
|
||
|
||
ret = EXIT_PC_UPDATED;
|
||
}
|
||
|
||
egress:
|
||
free_compare(c);
|
||
return ret;
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The operations. These perform the bulk of the work for any insn,
|
||
usually after the operands have been loaded and output initialized. */
|
||
|
||
static ExitStatus op_abs(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_abs_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_absf32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_andi_i64(o->out, o->in2, 0x7fffffffull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_absf64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_andi_i64(o->out, o->in2, 0x7fffffffffffffffull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_absf128(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_andi_i64(o->out, o->in1, 0x7fffffffffffffffull);
|
||
tcg_gen_mov_i64(o->out2, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_add(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_add_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_addc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 cc;
|
||
|
||
tcg_gen_add_i64(o->out, o->in1, o->in2);
|
||
|
||
/* XXX possible optimization point */
|
||
gen_op_calc_cc(s);
|
||
cc = tcg_temp_new_i64();
|
||
tcg_gen_extu_i32_i64(cc, cc_op);
|
||
tcg_gen_shri_i64(cc, cc, 1);
|
||
|
||
tcg_gen_add_i64(o->out, o->out, cc);
|
||
tcg_temp_free_i64(cc);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_aeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_aeb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_adb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_adb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_axb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_axb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_and(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_and_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_andi(DisasContext *s, DisasOps *o)
|
||
{
|
||
int shift = s->insn->data & 0xff;
|
||
int size = s->insn->data >> 8;
|
||
uint64_t mask = ((1ull << size) - 1) << shift;
|
||
|
||
assert(!o->g_in2);
|
||
tcg_gen_shli_i64(o->in2, o->in2, shift);
|
||
tcg_gen_ori_i64(o->in2, o->in2, ~mask);
|
||
tcg_gen_and_i64(o->out, o->in1, o->in2);
|
||
|
||
/* Produce the CC from only the bits manipulated. */
|
||
tcg_gen_andi_i64(cc_dst, o->out, mask);
|
||
set_cc_nz_u64(s, cc_dst);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_bas(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_movi_i64(o->out, pc_to_link_info(s, s->next_pc));
|
||
if (!TCGV_IS_UNUSED_I64(o->in2)) {
|
||
tcg_gen_mov_i64(psw_addr, o->in2);
|
||
return EXIT_PC_UPDATED;
|
||
} else {
|
||
return NO_EXIT;
|
||
}
|
||
}
|
||
|
||
static ExitStatus op_basi(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_movi_i64(o->out, pc_to_link_info(s, s->next_pc));
|
||
return help_goto_direct(s, s->pc + 2 * get_field(s->fields, i2));
|
||
}
|
||
|
||
static ExitStatus op_bc(DisasContext *s, DisasOps *o)
|
||
{
|
||
int m1 = get_field(s->fields, m1);
|
||
bool is_imm = have_field(s->fields, i2);
|
||
int imm = is_imm ? get_field(s->fields, i2) : 0;
|
||
DisasCompare c;
|
||
|
||
disas_jcc(s, &c, m1);
|
||
return help_branch(s, &c, is_imm, imm, o->in2);
|
||
}
|
||
|
||
static ExitStatus op_bct32(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
bool is_imm = have_field(s->fields, i2);
|
||
int imm = is_imm ? get_field(s->fields, i2) : 0;
|
||
DisasCompare c;
|
||
TCGv_i64 t;
|
||
|
||
c.cond = TCG_COND_NE;
|
||
c.is_64 = false;
|
||
c.g1 = false;
|
||
c.g2 = false;
|
||
|
||
t = tcg_temp_new_i64();
|
||
tcg_gen_subi_i64(t, regs[r1], 1);
|
||
store_reg32_i64(r1, t);
|
||
c.u.s32.a = tcg_temp_new_i32();
|
||
c.u.s32.b = tcg_const_i32(0);
|
||
tcg_gen_trunc_i64_i32(c.u.s32.a, t);
|
||
tcg_temp_free_i64(t);
|
||
|
||
return help_branch(s, &c, is_imm, imm, o->in2);
|
||
}
|
||
|
||
static ExitStatus op_bct64(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
bool is_imm = have_field(s->fields, i2);
|
||
int imm = is_imm ? get_field(s->fields, i2) : 0;
|
||
DisasCompare c;
|
||
|
||
c.cond = TCG_COND_NE;
|
||
c.is_64 = true;
|
||
c.g1 = true;
|
||
c.g2 = false;
|
||
|
||
tcg_gen_subi_i64(regs[r1], regs[r1], 1);
|
||
c.u.s64.a = regs[r1];
|
||
c.u.s64.b = tcg_const_i64(0);
|
||
|
||
return help_branch(s, &c, is_imm, imm, o->in2);
|
||
}
|
||
|
||
static ExitStatus op_ceb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_ceb(cc_op, cpu_env, o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_cdb(cc_op, cpu_env, o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_cxb(cc_op, cpu_env, o->out, o->out2, o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cfeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cfeb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f32(s, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cfdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cfdb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f64(s, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cfxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cfxb(o->out, cpu_env, o->in1, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f128(s, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cgeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cgeb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f32(s, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cgdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cgdb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f64(s, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cgxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cgxb(o->out, cpu_env, o->in1, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
gen_set_cc_nz_f128(s, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cegb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cegb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cdgb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cdgb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cxgb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
gen_helper_cxgb(o->out, cpu_env, o->in2, m3);
|
||
tcg_temp_free_i32(m3);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cksm(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r2 = get_field(s->fields, r2);
|
||
TCGv_i64 len = tcg_temp_new_i64();
|
||
|
||
potential_page_fault(s);
|
||
gen_helper_cksm(len, cpu_env, o->in1, o->in2, regs[r2 + 1]);
|
||
set_cc_static(s);
|
||
return_low128(o->out);
|
||
|
||
tcg_gen_add_i64(regs[r2], regs[r2], len);
|
||
tcg_gen_sub_i64(regs[r2 + 1], regs[r2 + 1], len);
|
||
tcg_temp_free_i64(len);
|
||
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_clc(DisasContext *s, DisasOps *o)
|
||
{
|
||
int l = get_field(s->fields, l1);
|
||
TCGv_i32 vl;
|
||
|
||
switch (l + 1) {
|
||
case 1:
|
||
tcg_gen_qemu_ld8u(cc_src, o->addr1, get_mem_index(s));
|
||
tcg_gen_qemu_ld8u(cc_dst, o->in2, get_mem_index(s));
|
||
break;
|
||
case 2:
|
||
tcg_gen_qemu_ld16u(cc_src, o->addr1, get_mem_index(s));
|
||
tcg_gen_qemu_ld16u(cc_dst, o->in2, get_mem_index(s));
|
||
break;
|
||
case 4:
|
||
tcg_gen_qemu_ld32u(cc_src, o->addr1, get_mem_index(s));
|
||
tcg_gen_qemu_ld32u(cc_dst, o->in2, get_mem_index(s));
|
||
break;
|
||
case 8:
|
||
tcg_gen_qemu_ld64(cc_src, o->addr1, get_mem_index(s));
|
||
tcg_gen_qemu_ld64(cc_dst, o->in2, get_mem_index(s));
|
||
break;
|
||
default:
|
||
potential_page_fault(s);
|
||
vl = tcg_const_i32(l);
|
||
gen_helper_clc(cc_op, cpu_env, vl, o->addr1, o->in2);
|
||
tcg_temp_free_i32(vl);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
gen_op_update2_cc_i64(s, CC_OP_LTUGTU_64, cc_src, cc_dst);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_clcle(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
potential_page_fault(s);
|
||
gen_helper_clcle(cc_op, cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_clm(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
|
||
TCGv_i32 t1 = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(t1, o->in1);
|
||
potential_page_fault(s);
|
||
gen_helper_clm(cc_op, cpu_env, t1, m3, o->in2);
|
||
set_cc_static(s);
|
||
tcg_temp_free_i32(t1);
|
||
tcg_temp_free_i32(m3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_clst(DisasContext *s, DisasOps *o)
|
||
{
|
||
potential_page_fault(s);
|
||
gen_helper_clst(o->in1, cpu_env, regs[0], o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return_low128(o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cs(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r3 = get_field(s->fields, r3);
|
||
potential_page_fault(s);
|
||
gen_helper_cs(o->out, cpu_env, o->in1, o->in2, regs[r3]);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_csg(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r3 = get_field(s->fields, r3);
|
||
potential_page_fault(s);
|
||
gen_helper_csg(o->out, cpu_env, o->in1, o->in2, regs[r3]);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_csp(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
check_privileged(s);
|
||
gen_helper_csp(cc_op, cpu_env, r1, o->in2);
|
||
tcg_temp_free_i32(r1);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_cds(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r3 = get_field(s->fields, r3);
|
||
TCGv_i64 in3 = tcg_temp_new_i64();
|
||
tcg_gen_deposit_i64(in3, regs[r3 + 1], regs[r3], 32, 32);
|
||
potential_page_fault(s);
|
||
gen_helper_csg(o->out, cpu_env, o->in1, o->in2, in3);
|
||
tcg_temp_free_i64(in3);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cdsg(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
potential_page_fault(s);
|
||
/* XXX rewrite in tcg */
|
||
gen_helper_cdsg(cc_op, cpu_env, r1, o->in2, r3);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_cvd(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 t1 = tcg_temp_new_i64();
|
||
TCGv_i32 t2 = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(t2, o->in1);
|
||
gen_helper_cvd(t1, t2);
|
||
tcg_temp_free_i32(t2);
|
||
tcg_gen_qemu_st64(t1, o->in2, get_mem_index(s));
|
||
tcg_temp_free_i64(t1);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_diag(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 tmp;
|
||
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
|
||
/* We pretend the format is RX_a so that D2 is the field we want. */
|
||
tmp = tcg_const_i32(get_field(s->fields, d2) & 0xfff);
|
||
gen_helper_diag(regs[2], cpu_env, tmp, regs[2], regs[1]);
|
||
tcg_temp_free_i32(tmp);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_divs32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_divs32(o->out2, cpu_env, o->in1, o->in2);
|
||
return_low128(o->out);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_divu32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_divu32(o->out2, cpu_env, o->in1, o->in2);
|
||
return_low128(o->out);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_divs64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_divs64(o->out2, cpu_env, o->in1, o->in2);
|
||
return_low128(o->out);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_divu64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_divu64(o->out2, cpu_env, o->out, o->out2, o->in2);
|
||
return_low128(o->out);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_deb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_deb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ddb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_ddb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_dxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_dxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ear(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r2 = get_field(s->fields, r2);
|
||
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, aregs[r2]));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_efpc(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, fpc));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ex(DisasContext *s, DisasOps *o)
|
||
{
|
||
/* ??? Perhaps a better way to implement EXECUTE is to set a bit in
|
||
tb->flags, (ab)use the tb->cs_base field as the address of
|
||
the template in memory, and grab 8 bits of tb->flags/cflags for
|
||
the contents of the register. We would then recognize all this
|
||
in gen_intermediate_code_internal, generating code for exactly
|
||
one instruction. This new TB then gets executed normally.
|
||
|
||
On the other hand, this seems to be mostly used for modifying
|
||
MVC inside of memcpy, which needs a helper call anyway. So
|
||
perhaps this doesn't bear thinking about any further. */
|
||
|
||
TCGv_i64 tmp;
|
||
|
||
update_psw_addr(s);
|
||
gen_op_calc_cc(s);
|
||
|
||
tmp = tcg_const_i64(s->next_pc);
|
||
gen_helper_ex(cc_op, cpu_env, cc_op, o->in1, o->in2, tmp);
|
||
tcg_temp_free_i64(tmp);
|
||
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_flogr(DisasContext *s, DisasOps *o)
|
||
{
|
||
/* We'll use the original input for cc computation, since we get to
|
||
compare that against 0, which ought to be better than comparing
|
||
the real output against 64. It also lets cc_dst be a convenient
|
||
temporary during our computation. */
|
||
gen_op_update1_cc_i64(s, CC_OP_FLOGR, o->in2);
|
||
|
||
/* R1 = IN ? CLZ(IN) : 64. */
|
||
gen_helper_clz(o->out, o->in2);
|
||
|
||
/* R1+1 = IN & ~(found bit). Note that we may attempt to shift this
|
||
value by 64, which is undefined. But since the shift is 64 iff the
|
||
input is zero, we still get the correct result after and'ing. */
|
||
tcg_gen_movi_i64(o->out2, 0x8000000000000000ull);
|
||
tcg_gen_shr_i64(o->out2, o->out2, o->out);
|
||
tcg_gen_andc_i64(o->out2, cc_dst, o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_icm(DisasContext *s, DisasOps *o)
|
||
{
|
||
int m3 = get_field(s->fields, m3);
|
||
int pos, len, base = s->insn->data;
|
||
TCGv_i64 tmp = tcg_temp_new_i64();
|
||
uint64_t ccm;
|
||
|
||
switch (m3) {
|
||
case 0xf:
|
||
/* Effectively a 32-bit load. */
|
||
tcg_gen_qemu_ld32u(tmp, o->in2, get_mem_index(s));
|
||
len = 32;
|
||
goto one_insert;
|
||
|
||
case 0xc:
|
||
case 0x6:
|
||
case 0x3:
|
||
/* Effectively a 16-bit load. */
|
||
tcg_gen_qemu_ld16u(tmp, o->in2, get_mem_index(s));
|
||
len = 16;
|
||
goto one_insert;
|
||
|
||
case 0x8:
|
||
case 0x4:
|
||
case 0x2:
|
||
case 0x1:
|
||
/* Effectively an 8-bit load. */
|
||
tcg_gen_qemu_ld8u(tmp, o->in2, get_mem_index(s));
|
||
len = 8;
|
||
goto one_insert;
|
||
|
||
one_insert:
|
||
pos = base + ctz32(m3) * 8;
|
||
tcg_gen_deposit_i64(o->out, o->out, tmp, pos, len);
|
||
ccm = ((1ull << len) - 1) << pos;
|
||
break;
|
||
|
||
default:
|
||
/* This is going to be a sequence of loads and inserts. */
|
||
pos = base + 32 - 8;
|
||
ccm = 0;
|
||
while (m3) {
|
||
if (m3 & 0x8) {
|
||
tcg_gen_qemu_ld8u(tmp, o->in2, get_mem_index(s));
|
||
tcg_gen_addi_i64(o->in2, o->in2, 1);
|
||
tcg_gen_deposit_i64(o->out, o->out, tmp, pos, 8);
|
||
ccm |= 0xff << pos;
|
||
}
|
||
m3 = (m3 << 1) & 0xf;
|
||
pos -= 8;
|
||
}
|
||
break;
|
||
}
|
||
|
||
tcg_gen_movi_i64(tmp, ccm);
|
||
gen_op_update2_cc_i64(s, CC_OP_ICM, tmp, o->out);
|
||
tcg_temp_free_i64(tmp);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_insi(DisasContext *s, DisasOps *o)
|
||
{
|
||
int shift = s->insn->data & 0xff;
|
||
int size = s->insn->data >> 8;
|
||
tcg_gen_deposit_i64(o->out, o->in1, o->in2, shift, size);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ipm(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 t1;
|
||
|
||
gen_op_calc_cc(s);
|
||
tcg_gen_andi_i64(o->out, o->out, ~0xff000000ull);
|
||
|
||
t1 = tcg_temp_new_i64();
|
||
tcg_gen_shli_i64(t1, psw_mask, 20);
|
||
tcg_gen_shri_i64(t1, t1, 36);
|
||
tcg_gen_or_i64(o->out, o->out, t1);
|
||
|
||
tcg_gen_extu_i32_i64(t1, cc_op);
|
||
tcg_gen_shli_i64(t1, t1, 28);
|
||
tcg_gen_or_i64(o->out, o->out, t1);
|
||
tcg_temp_free_i64(t1);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_ipte(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_ipte(cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_iske(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_iske(o->out, cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_ldeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_ldeb(o->out, cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ledb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_ledb(o->out, cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ldxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_ldxb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lexb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_lexb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lxdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_lxdb(o->out, cpu_env, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lxeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_lxeb(o->out, cpu_env, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_llgt(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_andi_i64(o->out, o->in2, 0x7fffffff);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld8s(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld8s(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld8u(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld8u(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld16s(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld16s(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld16u(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld16u(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld32s(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld32s(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld32u(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld32u(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ld64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_ld64(o->out, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_lctl(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_lctl(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lctlg(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_lctlg(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
static ExitStatus op_lra(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_lra(o->out, cpu_env, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lpsw(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 t1, t2;
|
||
|
||
check_privileged(s);
|
||
|
||
t1 = tcg_temp_new_i64();
|
||
t2 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
|
||
tcg_gen_addi_i64(o->in2, o->in2, 4);
|
||
tcg_gen_qemu_ld32u(t2, o->in2, get_mem_index(s));
|
||
/* Convert the 32-bit PSW_MASK into the 64-bit PSW_MASK. */
|
||
tcg_gen_shli_i64(t1, t1, 32);
|
||
gen_helper_load_psw(cpu_env, t1, t2);
|
||
tcg_temp_free_i64(t1);
|
||
tcg_temp_free_i64(t2);
|
||
return EXIT_NORETURN;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_lam(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
potential_page_fault(s);
|
||
gen_helper_lam(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lm32(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
int r3 = get_field(s->fields, r3);
|
||
TCGv_i64 t = tcg_temp_new_i64();
|
||
TCGv_i64 t4 = tcg_const_i64(4);
|
||
|
||
while (1) {
|
||
tcg_gen_qemu_ld32u(t, o->in2, get_mem_index(s));
|
||
store_reg32_i64(r1, t);
|
||
if (r1 == r3) {
|
||
break;
|
||
}
|
||
tcg_gen_add_i64(o->in2, o->in2, t4);
|
||
r1 = (r1 + 1) & 15;
|
||
}
|
||
|
||
tcg_temp_free_i64(t);
|
||
tcg_temp_free_i64(t4);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lmh(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
int r3 = get_field(s->fields, r3);
|
||
TCGv_i64 t = tcg_temp_new_i64();
|
||
TCGv_i64 t4 = tcg_const_i64(4);
|
||
|
||
while (1) {
|
||
tcg_gen_qemu_ld32u(t, o->in2, get_mem_index(s));
|
||
store_reg32h_i64(r1, t);
|
||
if (r1 == r3) {
|
||
break;
|
||
}
|
||
tcg_gen_add_i64(o->in2, o->in2, t4);
|
||
r1 = (r1 + 1) & 15;
|
||
}
|
||
|
||
tcg_temp_free_i64(t);
|
||
tcg_temp_free_i64(t4);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_lm64(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
int r3 = get_field(s->fields, r3);
|
||
TCGv_i64 t8 = tcg_const_i64(8);
|
||
|
||
while (1) {
|
||
tcg_gen_qemu_ld64(regs[r1], o->in2, get_mem_index(s));
|
||
if (r1 == r3) {
|
||
break;
|
||
}
|
||
tcg_gen_add_i64(o->in2, o->in2, t8);
|
||
r1 = (r1 + 1) & 15;
|
||
}
|
||
|
||
tcg_temp_free_i64(t8);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mov2(DisasContext *s, DisasOps *o)
|
||
{
|
||
o->out = o->in2;
|
||
o->g_out = o->g_in2;
|
||
TCGV_UNUSED_I64(o->in2);
|
||
o->g_in2 = false;
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_movx(DisasContext *s, DisasOps *o)
|
||
{
|
||
o->out = o->in1;
|
||
o->out2 = o->in2;
|
||
o->g_out = o->g_in1;
|
||
o->g_out2 = o->g_in2;
|
||
TCGV_UNUSED_I64(o->in1);
|
||
TCGV_UNUSED_I64(o->in2);
|
||
o->g_in1 = o->g_in2 = false;
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mvc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_mvc(cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mvcl(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2));
|
||
potential_page_fault(s);
|
||
gen_helper_mvcl(cc_op, cpu_env, r1, r2);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mvcle(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
potential_page_fault(s);
|
||
gen_helper_mvcle(cc_op, cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_mvcp(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, l1);
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_mvcp(cc_op, cpu_env, regs[r1], o->addr1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mvcs(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, l1);
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_mvcs(cc_op, cpu_env, regs[r1], o->addr1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_mvpg(DisasContext *s, DisasOps *o)
|
||
{
|
||
potential_page_fault(s);
|
||
gen_helper_mvpg(cpu_env, regs[0], o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mvst(DisasContext *s, DisasOps *o)
|
||
{
|
||
potential_page_fault(s);
|
||
gen_helper_mvst(o->in1, cpu_env, regs[0], o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return_low128(o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mul(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_mul_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mul128(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_mul128(o->out, cpu_env, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_meeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_meeb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mdeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_mdeb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_mdb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_mxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mxdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_mxdb(o->out, cpu_env, o->out, o->out2, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_maeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 r3 = load_freg32_i64(get_field(s->fields, r3));
|
||
gen_helper_maeb(o->out, cpu_env, o->in1, o->in2, r3);
|
||
tcg_temp_free_i64(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_madb(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r3 = get_field(s->fields, r3);
|
||
gen_helper_madb(o->out, cpu_env, o->in1, o->in2, fregs[r3]);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_mseb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 r3 = load_freg32_i64(get_field(s->fields, r3));
|
||
gen_helper_mseb(o->out, cpu_env, o->in1, o->in2, r3);
|
||
tcg_temp_free_i64(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_msdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r3 = get_field(s->fields, r3);
|
||
gen_helper_msdb(o->out, cpu_env, o->in1, o->in2, fregs[r3]);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_nabs(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_nabs_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_nabsf32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_ori_i64(o->out, o->in2, 0x80000000ull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_nabsf64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_ori_i64(o->out, o->in2, 0x8000000000000000ull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_nabsf128(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_ori_i64(o->out, o->in1, 0x8000000000000000ull);
|
||
tcg_gen_mov_i64(o->out2, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_nc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_nc(cc_op, cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_neg(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_neg_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_negf32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_xori_i64(o->out, o->in2, 0x80000000ull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_negf64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_xori_i64(o->out, o->in2, 0x8000000000000000ull);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_negf128(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_xori_i64(o->out, o->in1, 0x8000000000000000ull);
|
||
tcg_gen_mov_i64(o->out2, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_oc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_oc(cc_op, cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_or(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_or_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ori(DisasContext *s, DisasOps *o)
|
||
{
|
||
int shift = s->insn->data & 0xff;
|
||
int size = s->insn->data >> 8;
|
||
uint64_t mask = ((1ull << size) - 1) << shift;
|
||
|
||
assert(!o->g_in2);
|
||
tcg_gen_shli_i64(o->in2, o->in2, shift);
|
||
tcg_gen_or_i64(o->out, o->in1, o->in2);
|
||
|
||
/* Produce the CC from only the bits manipulated. */
|
||
tcg_gen_andi_i64(cc_dst, o->out, mask);
|
||
set_cc_nz_u64(s, cc_dst);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_ptlb(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_ptlb(cpu_env);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_rev16(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_bswap16_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_rev32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_bswap32_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_rev64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_bswap64_i64(o->out, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_rll32(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 t1 = tcg_temp_new_i32();
|
||
TCGv_i32 t2 = tcg_temp_new_i32();
|
||
TCGv_i32 to = tcg_temp_new_i32();
|
||
tcg_gen_trunc_i64_i32(t1, o->in1);
|
||
tcg_gen_trunc_i64_i32(t2, o->in2);
|
||
tcg_gen_rotl_i32(to, t1, t2);
|
||
tcg_gen_extu_i32_i64(o->out, to);
|
||
tcg_temp_free_i32(t1);
|
||
tcg_temp_free_i32(t2);
|
||
tcg_temp_free_i32(to);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_rll64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_rotl_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_rrbe(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_rrbe(cc_op, cpu_env, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_sar(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
tcg_gen_st32_i64(o->in2, cpu_env, offsetof(CPUS390XState, aregs[r1]));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_seb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_seb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sdb(o->out, cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sqeb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sqeb(o->out, cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sqdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sqdb(o->out, cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sqxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sqxb(o->out, cpu_env, o->in1, o->in2);
|
||
return_low128(o->out2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_sigp(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_sigp(cc_op, cpu_env, o->in2, r1, o->in1);
|
||
tcg_temp_free_i32(r1);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_sla(DisasContext *s, DisasOps *o)
|
||
{
|
||
uint64_t sign = 1ull << s->insn->data;
|
||
enum cc_op cco = s->insn->data == 31 ? CC_OP_SLA_32 : CC_OP_SLA_64;
|
||
gen_op_update2_cc_i64(s, cco, o->in1, o->in2);
|
||
tcg_gen_shl_i64(o->out, o->in1, o->in2);
|
||
/* The arithmetic left shift is curious in that it does not affect
|
||
the sign bit. Copy that over from the source unchanged. */
|
||
tcg_gen_andi_i64(o->out, o->out, ~sign);
|
||
tcg_gen_andi_i64(o->in1, o->in1, sign);
|
||
tcg_gen_or_i64(o->out, o->out, o->in1);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sll(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_shl_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sra(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_sar_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_srl(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_shr_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sfpc(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_sfpc(cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_spka(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
tcg_gen_shri_i64(o->in2, o->in2, 4);
|
||
tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, PSW_SHIFT_KEY - 4, 4);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sske(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_sske(cpu_env, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_ssm(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, 56, 8);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stap(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
/* ??? Surely cpu address != cpu number. In any case the previous
|
||
version of this stored more than the required half-word, so it
|
||
is unlikely this has ever been tested. */
|
||
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stck(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_stck(o->out, cpu_env);
|
||
/* ??? We don't implement clock states. */
|
||
gen_op_movi_cc(s, 0);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sckc(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_sckc(cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stckc(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_stckc(o->out, cpu_env);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stctg(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_stctg(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stctl(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_stctl(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stidp(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_spt(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_spt(cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stpt(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_stpt(o->out, cpu_env);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_spx(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
gen_helper_spx(cpu_env, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_subchannel(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
/* Not operational. */
|
||
gen_op_movi_cc(s, 3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stpx(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
tcg_gen_ld_i64(o->out, cpu_env, offsetof(CPUS390XState, psa));
|
||
tcg_gen_andi_i64(o->out, o->out, 0x7fffe000);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stnosm(DisasContext *s, DisasOps *o)
|
||
{
|
||
uint64_t i2 = get_field(s->fields, i2);
|
||
TCGv_i64 t;
|
||
|
||
check_privileged(s);
|
||
|
||
/* It is important to do what the instruction name says: STORE THEN.
|
||
If we let the output hook perform the store then if we fault and
|
||
restart, we'll have the wrong SYSTEM MASK in place. */
|
||
t = tcg_temp_new_i64();
|
||
tcg_gen_shri_i64(t, psw_mask, 56);
|
||
tcg_gen_qemu_st8(t, o->addr1, get_mem_index(s));
|
||
tcg_temp_free_i64(t);
|
||
|
||
if (s->fields->op == 0xac) {
|
||
tcg_gen_andi_i64(psw_mask, psw_mask,
|
||
(i2 << 56) | 0x00ffffffffffffffull);
|
||
} else {
|
||
tcg_gen_ori_i64(psw_mask, psw_mask, i2 << 56);
|
||
}
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stura(DisasContext *s, DisasOps *o)
|
||
{
|
||
check_privileged(s);
|
||
potential_page_fault(s);
|
||
gen_helper_stura(cpu_env, o->in2, o->in1);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_st8(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st8(o->in1, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_st16(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st16(o->in1, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_st32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st32(o->in1, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_st64(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st64(o->in1, o->in2, get_mem_index(s));
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stam(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
|
||
TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
|
||
potential_page_fault(s);
|
||
gen_helper_stam(cpu_env, r1, o->in2, r3);
|
||
tcg_temp_free_i32(r1);
|
||
tcg_temp_free_i32(r3);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stcm(DisasContext *s, DisasOps *o)
|
||
{
|
||
int m3 = get_field(s->fields, m3);
|
||
int pos, base = s->insn->data;
|
||
TCGv_i64 tmp = tcg_temp_new_i64();
|
||
|
||
pos = base + ctz32(m3) * 8;
|
||
switch (m3) {
|
||
case 0xf:
|
||
/* Effectively a 32-bit store. */
|
||
tcg_gen_shri_i64(tmp, o->in1, pos);
|
||
tcg_gen_qemu_st32(tmp, o->in2, get_mem_index(s));
|
||
break;
|
||
|
||
case 0xc:
|
||
case 0x6:
|
||
case 0x3:
|
||
/* Effectively a 16-bit store. */
|
||
tcg_gen_shri_i64(tmp, o->in1, pos);
|
||
tcg_gen_qemu_st16(tmp, o->in2, get_mem_index(s));
|
||
break;
|
||
|
||
case 0x8:
|
||
case 0x4:
|
||
case 0x2:
|
||
case 0x1:
|
||
/* Effectively an 8-bit store. */
|
||
tcg_gen_shri_i64(tmp, o->in1, pos);
|
||
tcg_gen_qemu_st8(tmp, o->in2, get_mem_index(s));
|
||
break;
|
||
|
||
default:
|
||
/* This is going to be a sequence of shifts and stores. */
|
||
pos = base + 32 - 8;
|
||
while (m3) {
|
||
if (m3 & 0x8) {
|
||
tcg_gen_shri_i64(tmp, o->in1, pos);
|
||
tcg_gen_qemu_st8(tmp, o->in2, get_mem_index(s));
|
||
tcg_gen_addi_i64(o->in2, o->in2, 1);
|
||
}
|
||
m3 = (m3 << 1) & 0xf;
|
||
pos -= 8;
|
||
}
|
||
break;
|
||
}
|
||
tcg_temp_free_i64(tmp);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stm(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
int r3 = get_field(s->fields, r3);
|
||
int size = s->insn->data;
|
||
TCGv_i64 tsize = tcg_const_i64(size);
|
||
|
||
while (1) {
|
||
if (size == 8) {
|
||
tcg_gen_qemu_st64(regs[r1], o->in2, get_mem_index(s));
|
||
} else {
|
||
tcg_gen_qemu_st32(regs[r1], o->in2, get_mem_index(s));
|
||
}
|
||
if (r1 == r3) {
|
||
break;
|
||
}
|
||
tcg_gen_add_i64(o->in2, o->in2, tsize);
|
||
r1 = (r1 + 1) & 15;
|
||
}
|
||
|
||
tcg_temp_free_i64(tsize);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_stmh(DisasContext *s, DisasOps *o)
|
||
{
|
||
int r1 = get_field(s->fields, r1);
|
||
int r3 = get_field(s->fields, r3);
|
||
TCGv_i64 t = tcg_temp_new_i64();
|
||
TCGv_i64 t4 = tcg_const_i64(4);
|
||
TCGv_i64 t32 = tcg_const_i64(32);
|
||
|
||
while (1) {
|
||
tcg_gen_shl_i64(t, regs[r1], t32);
|
||
tcg_gen_qemu_st32(t, o->in2, get_mem_index(s));
|
||
if (r1 == r3) {
|
||
break;
|
||
}
|
||
tcg_gen_add_i64(o->in2, o->in2, t4);
|
||
r1 = (r1 + 1) & 15;
|
||
}
|
||
|
||
tcg_temp_free_i64(t);
|
||
tcg_temp_free_i64(t4);
|
||
tcg_temp_free_i64(t32);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_srst(DisasContext *s, DisasOps *o)
|
||
{
|
||
potential_page_fault(s);
|
||
gen_helper_srst(o->in1, cpu_env, regs[0], o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return_low128(o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_sub(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_sub_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_subb(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i64 cc;
|
||
|
||
assert(!o->g_in2);
|
||
tcg_gen_not_i64(o->in2, o->in2);
|
||
tcg_gen_add_i64(o->out, o->in1, o->in2);
|
||
|
||
/* XXX possible optimization point */
|
||
gen_op_calc_cc(s);
|
||
cc = tcg_temp_new_i64();
|
||
tcg_gen_extu_i32_i64(cc, cc_op);
|
||
tcg_gen_shri_i64(cc, cc, 1);
|
||
tcg_gen_add_i64(o->out, o->out, cc);
|
||
tcg_temp_free_i64(cc);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_svc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 t;
|
||
|
||
update_psw_addr(s);
|
||
gen_op_calc_cc(s);
|
||
|
||
t = tcg_const_i32(get_field(s->fields, i1) & 0xff);
|
||
tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, int_svc_code));
|
||
tcg_temp_free_i32(t);
|
||
|
||
t = tcg_const_i32(s->next_pc - s->pc);
|
||
tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, int_svc_ilen));
|
||
tcg_temp_free_i32(t);
|
||
|
||
gen_exception(EXCP_SVC);
|
||
return EXIT_NORETURN;
|
||
}
|
||
|
||
static ExitStatus op_tceb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_tceb(cc_op, o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_tcdb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_tcdb(cc_op, o->in1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_tcxb(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_helper_tcxb(cc_op, o->out, o->out2, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
#ifndef CONFIG_USER_ONLY
|
||
static ExitStatus op_tprot(DisasContext *s, DisasOps *o)
|
||
{
|
||
potential_page_fault(s);
|
||
gen_helper_tprot(cc_op, o->addr1, o->in2);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
#endif
|
||
|
||
static ExitStatus op_tr(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_tr(cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_unpk(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_unpk(cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_xc(DisasContext *s, DisasOps *o)
|
||
{
|
||
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
|
||
potential_page_fault(s);
|
||
gen_helper_xc(cc_op, cpu_env, l, o->addr1, o->in2);
|
||
tcg_temp_free_i32(l);
|
||
set_cc_static(s);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_xor(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_xor_i64(o->out, o->in1, o->in2);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_xori(DisasContext *s, DisasOps *o)
|
||
{
|
||
int shift = s->insn->data & 0xff;
|
||
int size = s->insn->data >> 8;
|
||
uint64_t mask = ((1ull << size) - 1) << shift;
|
||
|
||
assert(!o->g_in2);
|
||
tcg_gen_shli_i64(o->in2, o->in2, shift);
|
||
tcg_gen_xor_i64(o->out, o->in1, o->in2);
|
||
|
||
/* Produce the CC from only the bits manipulated. */
|
||
tcg_gen_andi_i64(cc_dst, o->out, mask);
|
||
set_cc_nz_u64(s, cc_dst);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_zero(DisasContext *s, DisasOps *o)
|
||
{
|
||
o->out = tcg_const_i64(0);
|
||
return NO_EXIT;
|
||
}
|
||
|
||
static ExitStatus op_zero2(DisasContext *s, DisasOps *o)
|
||
{
|
||
o->out = tcg_const_i64(0);
|
||
o->out2 = o->out;
|
||
o->g_out2 = true;
|
||
return NO_EXIT;
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The "Cc OUTput" generators. Given the generated output (and in some cases
|
||
the original inputs), update the various cc data structures in order to
|
||
be able to compute the new condition code. */
|
||
|
||
static void cout_abs32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_ABS_32, o->out);
|
||
}
|
||
|
||
static void cout_abs64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_ABS_64, o->out);
|
||
}
|
||
|
||
static void cout_adds32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADD_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_adds64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADD_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_addu32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADDU_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_addu64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADDU_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_addc32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADDC_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_addc64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_ADDC_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_cmps32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_LTGT_32, o->in1, o->in2);
|
||
}
|
||
|
||
static void cout_cmps64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_LTGT_64, o->in1, o->in2);
|
||
}
|
||
|
||
static void cout_cmpu32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_LTUGTU_32, o->in1, o->in2);
|
||
}
|
||
|
||
static void cout_cmpu64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_LTUGTU_64, o->in1, o->in2);
|
||
}
|
||
|
||
static void cout_f32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ_F32, o->out);
|
||
}
|
||
|
||
static void cout_f64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ_F64, o->out);
|
||
}
|
||
|
||
static void cout_f128(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_NZ_F128, o->out, o->out2);
|
||
}
|
||
|
||
static void cout_nabs32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NABS_32, o->out);
|
||
}
|
||
|
||
static void cout_nabs64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NABS_64, o->out);
|
||
}
|
||
|
||
static void cout_neg32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_COMP_32, o->out);
|
||
}
|
||
|
||
static void cout_neg64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_COMP_64, o->out);
|
||
}
|
||
|
||
static void cout_nz32(DisasContext *s, DisasOps *o)
|
||
{
|
||
tcg_gen_ext32u_i64(cc_dst, o->out);
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ, cc_dst);
|
||
}
|
||
|
||
static void cout_nz64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_NZ, o->out);
|
||
}
|
||
|
||
static void cout_s32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_LTGT0_32, o->out);
|
||
}
|
||
|
||
static void cout_s64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update1_cc_i64(s, CC_OP_LTGT0_64, o->out);
|
||
}
|
||
|
||
static void cout_subs32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUB_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_subs64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUB_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_subu32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUBU_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_subu64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUBU_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_subb32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUBB_32, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_subb64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update3_cc_i64(s, CC_OP_SUBB_64, o->in1, o->in2, o->out);
|
||
}
|
||
|
||
static void cout_tm32(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_TM_32, o->in1, o->in2);
|
||
}
|
||
|
||
static void cout_tm64(DisasContext *s, DisasOps *o)
|
||
{
|
||
gen_op_update2_cc_i64(s, CC_OP_TM_64, o->in1, o->in2);
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The "PREPeration" generators. These initialize the DisasOps.OUT fields
|
||
with the TCG register to which we will write. Used in combination with
|
||
the "wout" generators, in some cases we need a new temporary, and in
|
||
some cases we can write to a TCG global. */
|
||
|
||
static void prep_new(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->out = tcg_temp_new_i64();
|
||
}
|
||
|
||
static void prep_new_P(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->out = tcg_temp_new_i64();
|
||
o->out2 = tcg_temp_new_i64();
|
||
}
|
||
|
||
static void prep_r1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->out = regs[get_field(f, r1)];
|
||
o->g_out = true;
|
||
}
|
||
|
||
static void prep_r1_P(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
o->out = regs[r1];
|
||
o->out2 = regs[(r1 + 1) & 15];
|
||
o->g_out = o->g_out2 = true;
|
||
}
|
||
|
||
static void prep_f1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->out = fregs[get_field(f, r1)];
|
||
o->g_out = true;
|
||
}
|
||
|
||
static void prep_x1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be < 14. */
|
||
int r1 = get_field(f, r1);
|
||
o->out = fregs[r1];
|
||
o->out2 = fregs[(r1 + 2) & 15];
|
||
o->g_out = o->g_out2 = true;
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The "Write OUTput" generators. These generally perform some non-trivial
|
||
copy of data to TCG globals, or to main memory. The trivial cases are
|
||
generally handled by having a "prep" generator install the TCG global
|
||
as the destination of the operation. */
|
||
|
||
static void wout_r1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
store_reg(get_field(f, r1), o->out);
|
||
}
|
||
|
||
static void wout_r1_8(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
int r1 = get_field(f, r1);
|
||
tcg_gen_deposit_i64(regs[r1], regs[r1], o->out, 0, 8);
|
||
}
|
||
|
||
static void wout_r1_16(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
int r1 = get_field(f, r1);
|
||
tcg_gen_deposit_i64(regs[r1], regs[r1], o->out, 0, 16);
|
||
}
|
||
|
||
static void wout_r1_32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
store_reg32_i64(get_field(f, r1), o->out);
|
||
}
|
||
|
||
static void wout_r1_P32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
store_reg32_i64(r1, o->out);
|
||
store_reg32_i64((r1 + 1) & 15, o->out2);
|
||
}
|
||
|
||
static void wout_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
store_reg32_i64((r1 + 1) & 15, o->out);
|
||
tcg_gen_shri_i64(o->out, o->out, 32);
|
||
store_reg32_i64(r1, o->out);
|
||
}
|
||
|
||
static void wout_e1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
store_freg32_i64(get_field(f, r1), o->out);
|
||
}
|
||
|
||
static void wout_f1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
store_freg(get_field(f, r1), o->out);
|
||
}
|
||
|
||
static void wout_x1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be < 14. */
|
||
int f1 = get_field(s->fields, r1);
|
||
store_freg(f1, o->out);
|
||
store_freg((f1 + 2) & 15, o->out2);
|
||
}
|
||
|
||
static void wout_cond_r1r2_32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
if (get_field(f, r1) != get_field(f, r2)) {
|
||
store_reg32_i64(get_field(f, r1), o->out);
|
||
}
|
||
}
|
||
|
||
static void wout_cond_e1e2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
if (get_field(f, r1) != get_field(f, r2)) {
|
||
store_freg32_i64(get_field(f, r1), o->out);
|
||
}
|
||
}
|
||
|
||
static void wout_m1_8(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st8(o->out, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void wout_m1_16(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st16(o->out, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void wout_m1_32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st32(o->out, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void wout_m1_64(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st64(o->out, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void wout_m2_32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
tcg_gen_qemu_st32(o->out, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The "INput 1" generators. These load the first operand to an insn. */
|
||
|
||
static void in1_r1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = load_reg(get_field(f, r1));
|
||
}
|
||
|
||
static void in1_r1_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = regs[get_field(f, r1)];
|
||
o->g_in1 = true;
|
||
}
|
||
|
||
static void in1_r1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32s_i64(o->in1, regs[get_field(f, r1)]);
|
||
}
|
||
|
||
static void in1_r1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32u_i64(o->in1, regs[get_field(f, r1)]);
|
||
}
|
||
|
||
static void in1_r1_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_shri_i64(o->in1, regs[get_field(f, r1)], 32);
|
||
}
|
||
|
||
static void in1_r1p1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
o->in1 = load_reg((r1 + 1) & 15);
|
||
}
|
||
|
||
static void in1_r1p1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32s_i64(o->in1, regs[(r1 + 1) & 15]);
|
||
}
|
||
|
||
static void in1_r1p1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32u_i64(o->in1, regs[(r1 + 1) & 15]);
|
||
}
|
||
|
||
static void in1_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be even. */
|
||
int r1 = get_field(f, r1);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_concat32_i64(o->in1, regs[r1 + 1], regs[r1]);
|
||
}
|
||
|
||
static void in1_r2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = load_reg(get_field(f, r2));
|
||
}
|
||
|
||
static void in1_r3(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = load_reg(get_field(f, r3));
|
||
}
|
||
|
||
static void in1_r3_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = regs[get_field(f, r3)];
|
||
o->g_in1 = true;
|
||
}
|
||
|
||
static void in1_r3_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32s_i64(o->in1, regs[get_field(f, r3)]);
|
||
}
|
||
|
||
static void in1_r3_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_ext32u_i64(o->in1, regs[get_field(f, r3)]);
|
||
}
|
||
|
||
static void in1_e1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = load_freg32_i64(get_field(f, r1));
|
||
}
|
||
|
||
static void in1_f1_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in1 = fregs[get_field(f, r1)];
|
||
o->g_in1 = true;
|
||
}
|
||
|
||
static void in1_x1_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be < 14. */
|
||
int r1 = get_field(f, r1);
|
||
o->out = fregs[r1];
|
||
o->out2 = fregs[(r1 + 2) & 15];
|
||
o->g_out = o->g_out2 = true;
|
||
}
|
||
|
||
static void in1_la1(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->addr1 = get_address(s, 0, get_field(f, b1), get_field(f, d1));
|
||
}
|
||
|
||
static void in1_la2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
int x2 = have_field(f, x2) ? get_field(f, x2) : 0;
|
||
o->addr1 = get_address(s, x2, get_field(f, b2), get_field(f, d2));
|
||
}
|
||
|
||
static void in1_m1_8u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld8u(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void in1_m1_16s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld16s(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void in1_m1_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld16u(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void in1_m1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld32s(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void in1_m1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld32u(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
static void in1_m1_64(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in1_la1(s, f, o);
|
||
o->in1 = tcg_temp_new_i64();
|
||
tcg_gen_qemu_ld64(o->in1, o->addr1, get_mem_index(s));
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
/* The "INput 2" generators. These load the second operand to an insn. */
|
||
|
||
static void in2_r1_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = regs[get_field(f, r1)];
|
||
o->g_in2 = true;
|
||
}
|
||
|
||
static void in2_r1_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext16u_i64(o->in2, regs[get_field(f, r1)]);
|
||
}
|
||
|
||
static void in2_r1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext32u_i64(o->in2, regs[get_field(f, r1)]);
|
||
}
|
||
|
||
static void in2_r2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = load_reg(get_field(f, r2));
|
||
}
|
||
|
||
static void in2_r2_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = regs[get_field(f, r2)];
|
||
o->g_in2 = true;
|
||
}
|
||
|
||
static void in2_r2_nz(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
int r2 = get_field(f, r2);
|
||
if (r2 != 0) {
|
||
o->in2 = load_reg(r2);
|
||
}
|
||
}
|
||
|
||
static void in2_r2_8s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext8s_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_r2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext8u_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_r2_16s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext16s_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_r2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext16u_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_r3(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = load_reg(get_field(f, r3));
|
||
}
|
||
|
||
static void in2_r2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext32s_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_r2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_temp_new_i64();
|
||
tcg_gen_ext32u_i64(o->in2, regs[get_field(f, r2)]);
|
||
}
|
||
|
||
static void in2_e2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = load_freg32_i64(get_field(f, r2));
|
||
}
|
||
|
||
static void in2_f2_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = fregs[get_field(f, r2)];
|
||
o->g_in2 = true;
|
||
}
|
||
|
||
static void in2_x2_o(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
/* ??? Specification exception: r1 must be < 14. */
|
||
int r2 = get_field(f, r2);
|
||
o->in1 = fregs[r2];
|
||
o->in2 = fregs[(r2 + 2) & 15];
|
||
o->g_in1 = o->g_in2 = true;
|
||
}
|
||
|
||
static void in2_ra2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = get_address(s, 0, get_field(f, r2), 0);
|
||
}
|
||
|
||
static void in2_a2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
int x2 = have_field(f, x2) ? get_field(f, x2) : 0;
|
||
o->in2 = get_address(s, x2, get_field(f, b2), get_field(f, d2));
|
||
}
|
||
|
||
static void in2_ri2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_const_i64(s->pc + (int64_t)get_field(f, i2) * 2);
|
||
}
|
||
|
||
static void in2_sh32(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
help_l2_shift(s, f, o, 31);
|
||
}
|
||
|
||
static void in2_sh64(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
help_l2_shift(s, f, o, 63);
|
||
}
|
||
|
||
static void in2_m2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld8u(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_m2_16s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld16s(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_m2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld16u(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_m2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld32s(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_m2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld32u(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_m2_64(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_a2(s, f, o);
|
||
tcg_gen_qemu_ld64(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_mri2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_ri2(s, f, o);
|
||
tcg_gen_qemu_ld16u(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_mri2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_ri2(s, f, o);
|
||
tcg_gen_qemu_ld32s(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_mri2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_ri2(s, f, o);
|
||
tcg_gen_qemu_ld32u(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_mri2_64(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
in2_ri2(s, f, o);
|
||
tcg_gen_qemu_ld64(o->in2, o->in2, get_mem_index(s));
|
||
}
|
||
|
||
static void in2_i2(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_const_i64(get_field(f, i2));
|
||
}
|
||
|
||
static void in2_i2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_const_i64((uint8_t)get_field(f, i2));
|
||
}
|
||
|
||
static void in2_i2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_const_i64((uint16_t)get_field(f, i2));
|
||
}
|
||
|
||
static void in2_i2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
o->in2 = tcg_const_i64((uint32_t)get_field(f, i2));
|
||
}
|
||
|
||
static void in2_i2_16u_shl(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
uint64_t i2 = (uint16_t)get_field(f, i2);
|
||
o->in2 = tcg_const_i64(i2 << s->insn->data);
|
||
}
|
||
|
||
static void in2_i2_32u_shl(DisasContext *s, DisasFields *f, DisasOps *o)
|
||
{
|
||
uint64_t i2 = (uint32_t)get_field(f, i2);
|
||
o->in2 = tcg_const_i64(i2 << s->insn->data);
|
||
}
|
||
|
||
/* ====================================================================== */
|
||
|
||
/* Find opc within the table of insns. This is formulated as a switch
|
||
statement so that (1) we get compile-time notice of cut-paste errors
|
||
for duplicated opcodes, and (2) the compiler generates the binary
|
||
search tree, rather than us having to post-process the table. */
|
||
|
||
#define C(OPC, NM, FT, FC, I1, I2, P, W, OP, CC) \
|
||
D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, 0)
|
||
|
||
#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) insn_ ## NM,
|
||
|
||
enum DisasInsnEnum {
|
||
#include "insn-data.def"
|
||
};
|
||
|
||
#undef D
|
||
#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) { \
|
||
.opc = OPC, \
|
||
.fmt = FMT_##FT, \
|
||
.fac = FAC_##FC, \
|
||
.name = #NM, \
|
||
.help_in1 = in1_##I1, \
|
||
.help_in2 = in2_##I2, \
|
||
.help_prep = prep_##P, \
|
||
.help_wout = wout_##W, \
|
||
.help_cout = cout_##CC, \
|
||
.help_op = op_##OP, \
|
||
.data = D \
|
||
},
|
||
|
||
/* Allow 0 to be used for NULL in the table below. */
|
||
#define in1_0 NULL
|
||
#define in2_0 NULL
|
||
#define prep_0 NULL
|
||
#define wout_0 NULL
|
||
#define cout_0 NULL
|
||
#define op_0 NULL
|
||
|
||
static const DisasInsn insn_info[] = {
|
||
#include "insn-data.def"
|
||
};
|
||
|
||
#undef D
|
||
#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) \
|
||
case OPC: return &insn_info[insn_ ## NM];
|
||
|
||
static const DisasInsn *lookup_opc(uint16_t opc)
|
||
{
|
||
switch (opc) {
|
||
#include "insn-data.def"
|
||
default:
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
#undef D
|
||
#undef C
|
||
|
||
/* Extract a field from the insn. The INSN should be left-aligned in
|
||
the uint64_t so that we can more easily utilize the big-bit-endian
|
||
definitions we extract from the Principals of Operation. */
|
||
|
||
static void extract_field(DisasFields *o, const DisasField *f, uint64_t insn)
|
||
{
|
||
uint32_t r, m;
|
||
|
||
if (f->size == 0) {
|
||
return;
|
||
}
|
||
|
||
/* Zero extract the field from the insn. */
|
||
r = (insn << f->beg) >> (64 - f->size);
|
||
|
||
/* Sign-extend, or un-swap the field as necessary. */
|
||
switch (f->type) {
|
||
case 0: /* unsigned */
|
||
break;
|
||
case 1: /* signed */
|
||
assert(f->size <= 32);
|
||
m = 1u << (f->size - 1);
|
||
r = (r ^ m) - m;
|
||
break;
|
||
case 2: /* dl+dh split, signed 20 bit. */
|
||
r = ((int8_t)r << 12) | (r >> 8);
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
/* Validate that the "compressed" encoding we selected above is valid.
|
||
I.e. we havn't make two different original fields overlap. */
|
||
assert(((o->presentC >> f->indexC) & 1) == 0);
|
||
o->presentC |= 1 << f->indexC;
|
||
o->presentO |= 1 << f->indexO;
|
||
|
||
o->c[f->indexC] = r;
|
||
}
|
||
|
||
/* Lookup the insn at the current PC, extracting the operands into O and
|
||
returning the info struct for the insn. Returns NULL for invalid insn. */
|
||
|
||
static const DisasInsn *extract_insn(CPUS390XState *env, DisasContext *s,
|
||
DisasFields *f)
|
||
{
|
||
uint64_t insn, pc = s->pc;
|
||
int op, op2, ilen;
|
||
const DisasInsn *info;
|
||
|
||
insn = ld_code2(env, pc);
|
||
op = (insn >> 8) & 0xff;
|
||
ilen = get_ilen(op);
|
||
s->next_pc = s->pc + ilen;
|
||
|
||
switch (ilen) {
|
||
case 2:
|
||
insn = insn << 48;
|
||
break;
|
||
case 4:
|
||
insn = ld_code4(env, pc) << 32;
|
||
break;
|
||
case 6:
|
||
insn = (insn << 48) | (ld_code4(env, pc + 2) << 16);
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
/* We can't actually determine the insn format until we've looked up
|
||
the full insn opcode. Which we can't do without locating the
|
||
secondary opcode. Assume by default that OP2 is at bit 40; for
|
||
those smaller insns that don't actually have a secondary opcode
|
||
this will correctly result in OP2 = 0. */
|
||
switch (op) {
|
||
case 0x01: /* E */
|
||
case 0x80: /* S */
|
||
case 0x82: /* S */
|
||
case 0x93: /* S */
|
||
case 0xb2: /* S, RRF, RRE */
|
||
case 0xb3: /* RRE, RRD, RRF */
|
||
case 0xb9: /* RRE, RRF */
|
||
case 0xe5: /* SSE, SIL */
|
||
op2 = (insn << 8) >> 56;
|
||
break;
|
||
case 0xa5: /* RI */
|
||
case 0xa7: /* RI */
|
||
case 0xc0: /* RIL */
|
||
case 0xc2: /* RIL */
|
||
case 0xc4: /* RIL */
|
||
case 0xc6: /* RIL */
|
||
case 0xc8: /* SSF */
|
||
case 0xcc: /* RIL */
|
||
op2 = (insn << 12) >> 60;
|
||
break;
|
||
case 0xd0 ... 0xdf: /* SS */
|
||
case 0xe1: /* SS */
|
||
case 0xe2: /* SS */
|
||
case 0xe8: /* SS */
|
||
case 0xe9: /* SS */
|
||
case 0xea: /* SS */
|
||
case 0xee ... 0xf3: /* SS */
|
||
case 0xf8 ... 0xfd: /* SS */
|
||
op2 = 0;
|
||
break;
|
||
default:
|
||
op2 = (insn << 40) >> 56;
|
||
break;
|
||
}
|
||
|
||
memset(f, 0, sizeof(*f));
|
||
f->op = op;
|
||
f->op2 = op2;
|
||
|
||
/* Lookup the instruction. */
|
||
info = lookup_opc(op << 8 | op2);
|
||
|
||
/* If we found it, extract the operands. */
|
||
if (info != NULL) {
|
||
DisasFormat fmt = info->fmt;
|
||
int i;
|
||
|
||
for (i = 0; i < NUM_C_FIELD; ++i) {
|
||
extract_field(f, &format_info[fmt].op[i], insn);
|
||
}
|
||
}
|
||
return info;
|
||
}
|
||
|
||
static ExitStatus translate_one(CPUS390XState *env, DisasContext *s)
|
||
{
|
||
const DisasInsn *insn;
|
||
ExitStatus ret = NO_EXIT;
|
||
DisasFields f;
|
||
DisasOps o;
|
||
|
||
insn = extract_insn(env, s, &f);
|
||
|
||
/* If not found, try the old interpreter. This includes ILLOPC. */
|
||
if (insn == NULL) {
|
||
disas_s390_insn(env, s);
|
||
switch (s->is_jmp) {
|
||
case DISAS_NEXT:
|
||
ret = NO_EXIT;
|
||
break;
|
||
case DISAS_TB_JUMP:
|
||
ret = EXIT_GOTO_TB;
|
||
break;
|
||
case DISAS_JUMP:
|
||
ret = EXIT_PC_UPDATED;
|
||
break;
|
||
case DISAS_EXCP:
|
||
ret = EXIT_NORETURN;
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
s->pc = s->next_pc;
|
||
return ret;
|
||
}
|
||
|
||
/* Set up the strutures we use to communicate with the helpers. */
|
||
s->insn = insn;
|
||
s->fields = &f;
|
||
o.g_out = o.g_out2 = o.g_in1 = o.g_in2 = false;
|
||
TCGV_UNUSED_I64(o.out);
|
||
TCGV_UNUSED_I64(o.out2);
|
||
TCGV_UNUSED_I64(o.in1);
|
||
TCGV_UNUSED_I64(o.in2);
|
||
TCGV_UNUSED_I64(o.addr1);
|
||
|
||
/* Implement the instruction. */
|
||
if (insn->help_in1) {
|
||
insn->help_in1(s, &f, &o);
|
||
}
|
||
if (insn->help_in2) {
|
||
insn->help_in2(s, &f, &o);
|
||
}
|
||
if (insn->help_prep) {
|
||
insn->help_prep(s, &f, &o);
|
||
}
|
||
if (insn->help_op) {
|
||
ret = insn->help_op(s, &o);
|
||
}
|
||
if (insn->help_wout) {
|
||
insn->help_wout(s, &f, &o);
|
||
}
|
||
if (insn->help_cout) {
|
||
insn->help_cout(s, &o);
|
||
}
|
||
|
||
/* Free any temporaries created by the helpers. */
|
||
if (!TCGV_IS_UNUSED_I64(o.out) && !o.g_out) {
|
||
tcg_temp_free_i64(o.out);
|
||
}
|
||
if (!TCGV_IS_UNUSED_I64(o.out2) && !o.g_out2) {
|
||
tcg_temp_free_i64(o.out2);
|
||
}
|
||
if (!TCGV_IS_UNUSED_I64(o.in1) && !o.g_in1) {
|
||
tcg_temp_free_i64(o.in1);
|
||
}
|
||
if (!TCGV_IS_UNUSED_I64(o.in2) && !o.g_in2) {
|
||
tcg_temp_free_i64(o.in2);
|
||
}
|
||
if (!TCGV_IS_UNUSED_I64(o.addr1)) {
|
||
tcg_temp_free_i64(o.addr1);
|
||
}
|
||
|
||
/* Advance to the next instruction. */
|
||
s->pc = s->next_pc;
|
||
return ret;
|
||
}
|
||
|
||
static inline void gen_intermediate_code_internal(CPUS390XState *env,
|
||
TranslationBlock *tb,
|
||
int search_pc)
|
||
{
|
||
DisasContext dc;
|
||
target_ulong pc_start;
|
||
uint64_t next_page_start;
|
||
uint16_t *gen_opc_end;
|
||
int j, lj = -1;
|
||
int num_insns, max_insns;
|
||
CPUBreakpoint *bp;
|
||
ExitStatus status;
|
||
bool do_debug;
|
||
|
||
pc_start = tb->pc;
|
||
|
||
/* 31-bit mode */
|
||
if (!(tb->flags & FLAG_MASK_64)) {
|
||
pc_start &= 0x7fffffff;
|
||
}
|
||
|
||
dc.tb = tb;
|
||
dc.pc = pc_start;
|
||
dc.cc_op = CC_OP_DYNAMIC;
|
||
do_debug = dc.singlestep_enabled = env->singlestep_enabled;
|
||
dc.is_jmp = DISAS_NEXT;
|
||
|
||
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
|
||
|
||
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
|
||
|
||
num_insns = 0;
|
||
max_insns = tb->cflags & CF_COUNT_MASK;
|
||
if (max_insns == 0) {
|
||
max_insns = CF_COUNT_MASK;
|
||
}
|
||
|
||
gen_icount_start();
|
||
|
||
do {
|
||
if (search_pc) {
|
||
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
|
||
if (lj < j) {
|
||
lj++;
|
||
while (lj < j) {
|
||
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
||
}
|
||
}
|
||
tcg_ctx.gen_opc_pc[lj] = dc.pc;
|
||
gen_opc_cc_op[lj] = dc.cc_op;
|
||
tcg_ctx.gen_opc_instr_start[lj] = 1;
|
||
tcg_ctx.gen_opc_icount[lj] = num_insns;
|
||
}
|
||
if (++num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
|
||
gen_io_start();
|
||
}
|
||
|
||
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
|
||
tcg_gen_debug_insn_start(dc.pc);
|
||
}
|
||
|
||
status = NO_EXIT;
|
||
if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
|
||
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
|
||
if (bp->pc == dc.pc) {
|
||
status = EXIT_PC_STALE;
|
||
do_debug = true;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (status == NO_EXIT) {
|
||
status = translate_one(env, &dc);
|
||
}
|
||
|
||
/* If we reach a page boundary, are single stepping,
|
||
or exhaust instruction count, stop generation. */
|
||
if (status == NO_EXIT
|
||
&& (dc.pc >= next_page_start
|
||
|| tcg_ctx.gen_opc_ptr >= gen_opc_end
|
||
|| num_insns >= max_insns
|
||
|| singlestep
|
||
|| env->singlestep_enabled)) {
|
||
status = EXIT_PC_STALE;
|
||
}
|
||
} while (status == NO_EXIT);
|
||
|
||
if (tb->cflags & CF_LAST_IO) {
|
||
gen_io_end();
|
||
}
|
||
|
||
switch (status) {
|
||
case EXIT_GOTO_TB:
|
||
case EXIT_NORETURN:
|
||
break;
|
||
case EXIT_PC_STALE:
|
||
update_psw_addr(&dc);
|
||
/* FALLTHRU */
|
||
case EXIT_PC_UPDATED:
|
||
if (singlestep && dc.cc_op != CC_OP_DYNAMIC) {
|
||
gen_op_calc_cc(&dc);
|
||
} else {
|
||
/* Next TB starts off with CC_OP_DYNAMIC,
|
||
so make sure the cc op type is in env */
|
||
gen_op_set_cc_op(&dc);
|
||
}
|
||
if (do_debug) {
|
||
gen_exception(EXCP_DEBUG);
|
||
} else {
|
||
/* Generate the return instruction */
|
||
tcg_gen_exit_tb(0);
|
||
}
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
gen_icount_end(tb, num_insns);
|
||
*tcg_ctx.gen_opc_ptr = INDEX_op_end;
|
||
if (search_pc) {
|
||
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
|
||
lj++;
|
||
while (lj <= j) {
|
||
tcg_ctx.gen_opc_instr_start[lj++] = 0;
|
||
}
|
||
} else {
|
||
tb->size = dc.pc - pc_start;
|
||
tb->icount = num_insns;
|
||
}
|
||
|
||
#if defined(S390X_DEBUG_DISAS)
|
||
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
|
||
qemu_log("IN: %s\n", lookup_symbol(pc_start));
|
||
log_target_disas(env, pc_start, dc.pc - pc_start, 1);
|
||
qemu_log("\n");
|
||
}
|
||
#endif
|
||
}
|
||
|
||
void gen_intermediate_code (CPUS390XState *env, struct TranslationBlock *tb)
|
||
{
|
||
gen_intermediate_code_internal(env, tb, 0);
|
||
}
|
||
|
||
void gen_intermediate_code_pc (CPUS390XState *env, struct TranslationBlock *tb)
|
||
{
|
||
gen_intermediate_code_internal(env, tb, 1);
|
||
}
|
||
|
||
void restore_state_to_opc(CPUS390XState *env, TranslationBlock *tb, int pc_pos)
|
||
{
|
||
int cc_op;
|
||
env->psw.addr = tcg_ctx.gen_opc_pc[pc_pos];
|
||
cc_op = gen_opc_cc_op[pc_pos];
|
||
if ((cc_op != CC_OP_DYNAMIC) && (cc_op != CC_OP_STATIC)) {
|
||
env->cc_op = cc_op;
|
||
}
|
||
}
|