2e134c9c55
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@446 c046a42c-6fe2-441c-8c8c-71466251a162
674 lines
13 KiB
C
674 lines
13 KiB
C
/*
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* ARM micro operations
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*
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* Copyright (c) 2003 Fabrice Bellard
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h"
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#define REGNAME r0
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#define REG (env->regs[0])
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#include "op_template.h"
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#define REGNAME r1
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#define REG (env->regs[1])
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#include "op_template.h"
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#define REGNAME r2
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#define REG (env->regs[2])
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#include "op_template.h"
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#define REGNAME r3
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#define REG (env->regs[3])
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#include "op_template.h"
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#define REGNAME r4
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#define REG (env->regs[4])
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#include "op_template.h"
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#define REGNAME r5
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#define REG (env->regs[5])
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#include "op_template.h"
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#define REGNAME r6
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#define REG (env->regs[6])
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#include "op_template.h"
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#define REGNAME r7
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#define REG (env->regs[7])
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#include "op_template.h"
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#define REGNAME r8
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#define REG (env->regs[8])
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#include "op_template.h"
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#define REGNAME r9
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#define REG (env->regs[9])
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#include "op_template.h"
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#define REGNAME r10
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#define REG (env->regs[10])
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#include "op_template.h"
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#define REGNAME r11
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#define REG (env->regs[11])
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#include "op_template.h"
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#define REGNAME r12
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#define REG (env->regs[12])
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#include "op_template.h"
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#define REGNAME r13
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#define REG (env->regs[13])
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#include "op_template.h"
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#define REGNAME r14
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#define REG (env->regs[14])
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#include "op_template.h"
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#define REGNAME r15
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#define REG (env->regs[15])
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#include "op_template.h"
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void OPPROTO op_movl_T0_0(void)
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{
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T0 = 0;
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}
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void OPPROTO op_movl_T0_im(void)
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{
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T0 = PARAM1;
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}
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void OPPROTO op_movl_T1_im(void)
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{
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T1 = PARAM1;
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}
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void OPPROTO op_movl_T2_im(void)
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{
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T2 = PARAM1;
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}
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void OPPROTO op_addl_T1_im(void)
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{
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T1 += PARAM1;
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}
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void OPPROTO op_addl_T1_T2(void)
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{
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T1 += T2;
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}
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void OPPROTO op_subl_T1_T2(void)
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{
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T1 -= T2;
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}
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void OPPROTO op_addl_T0_T1(void)
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{
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T0 += T1;
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}
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void OPPROTO op_addl_T0_T1_cc(void)
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{
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unsigned int src1;
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src1 = T0;
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T0 += T1;
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env->NZF = T0;
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env->CF = T0 < src1;
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env->VF = (src1 ^ T1 ^ -1) & (src1 ^ T0);
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}
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void OPPROTO op_adcl_T0_T1(void)
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{
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T0 += T1 + env->CF;
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}
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void OPPROTO op_adcl_T0_T1_cc(void)
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{
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unsigned int src1;
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src1 = T0;
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if (!env->CF) {
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T0 += T1;
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env->CF = T0 < src1;
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} else {
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T0 += T1 + 1;
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env->CF = T0 <= src1;
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}
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env->VF = (src1 ^ T1 ^ -1) & (src1 ^ T0);
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env->NZF = T0;
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FORCE_RET();
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}
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#define OPSUB(sub, sbc, res, T0, T1) \
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\
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void OPPROTO op_ ## sub ## l_T0_T1(void) \
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{ \
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res = T0 - T1; \
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} \
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\
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void OPPROTO op_ ## sub ## l_T0_T1_cc(void) \
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{ \
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unsigned int src1; \
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src1 = T0; \
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T0 -= T1; \
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env->NZF = T0; \
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env->CF = src1 >= T1; \
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env->VF = (src1 ^ T1) & (src1 ^ T0); \
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res = T0; \
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} \
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\
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void OPPROTO op_ ## sbc ## l_T0_T1(void) \
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{ \
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res = T0 - T1 + env->CF - 1; \
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} \
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\
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void OPPROTO op_ ## sbc ## l_T0_T1_cc(void) \
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{ \
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unsigned int src1; \
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src1 = T0; \
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if (!env->CF) { \
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T0 = T0 - T1 - 1; \
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env->CF = src1 >= T1; \
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} else { \
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T0 = T0 - T1; \
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env->CF = src1 > T1; \
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} \
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env->VF = (src1 ^ T1) & (src1 ^ T0); \
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env->NZF = T0; \
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res = T0; \
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FORCE_RET(); \
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}
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OPSUB(sub, sbc, T0, T0, T1)
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OPSUB(rsb, rsc, T0, T1, T0)
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void OPPROTO op_andl_T0_T1(void)
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{
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T0 &= T1;
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}
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void OPPROTO op_xorl_T0_T1(void)
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{
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T0 ^= T1;
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}
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void OPPROTO op_orl_T0_T1(void)
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{
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T0 |= T1;
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}
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void OPPROTO op_bicl_T0_T1(void)
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{
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T0 &= ~T1;
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}
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void OPPROTO op_notl_T1(void)
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{
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T1 = ~T1;
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}
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void OPPROTO op_logic_T0_cc(void)
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{
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env->NZF = T0;
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}
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void OPPROTO op_logic_T1_cc(void)
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{
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env->NZF = T1;
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}
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#define EIP (env->regs[15])
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void OPPROTO op_test_eq(void)
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{
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if (env->NZF == 0)
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JUMP_TB(op_test_eq, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_ne(void)
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{
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if (env->NZF != 0)
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JUMP_TB(op_test_ne, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_cs(void)
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{
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if (env->CF != 0)
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JUMP_TB(op_test_cs, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_cc(void)
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{
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if (env->CF == 0)
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JUMP_TB(op_test_cc, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_mi(void)
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{
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if ((env->NZF & 0x80000000) != 0)
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JUMP_TB(op_test_mi, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_pl(void)
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{
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if ((env->NZF & 0x80000000) == 0)
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JUMP_TB(op_test_pl, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_vs(void)
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{
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if ((env->VF & 0x80000000) != 0)
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JUMP_TB(op_test_vs, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_vc(void)
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{
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if ((env->VF & 0x80000000) == 0)
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JUMP_TB(op_test_vc, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_hi(void)
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{
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if (env->CF != 0 && env->NZF != 0)
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JUMP_TB(op_test_hi, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_ls(void)
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{
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if (env->CF == 0 || env->NZF == 0)
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JUMP_TB(op_test_ls, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_ge(void)
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{
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if (((env->VF ^ env->NZF) & 0x80000000) == 0)
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JUMP_TB(op_test_ge, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_lt(void)
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{
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if (((env->VF ^ env->NZF) & 0x80000000) != 0)
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JUMP_TB(op_test_lt, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_gt(void)
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{
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if (env->NZF != 0 && ((env->VF ^ env->NZF) & 0x80000000) == 0)
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JUMP_TB(op_test_gt, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_test_le(void)
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{
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if (env->NZF == 0 || ((env->VF ^ env->NZF) & 0x80000000) != 0)
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JUMP_TB(op_test_le, PARAM1, 0, PARAM2);
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FORCE_RET();
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}
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void OPPROTO op_jmp(void)
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{
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JUMP_TB(op_jmp, PARAM1, 1, PARAM2);
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}
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void OPPROTO op_exit_tb(void)
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{
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EXIT_TB();
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}
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void OPPROTO op_movl_T0_psr(void)
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{
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T0 = compute_cpsr();
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}
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/* NOTE: N = 1 and Z = 1 cannot be stored currently */
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void OPPROTO op_movl_psr_T0(void)
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{
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unsigned int psr;
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psr = T0;
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env->CF = (psr >> 29) & 1;
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env->NZF = (psr & 0xc0000000) ^ 0x40000000;
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env->VF = (psr << 3) & 0x80000000;
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/* for user mode we do not update other state info */
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}
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void OPPROTO op_mul_T0_T1(void)
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{
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T0 = T0 * T1;
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}
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/* 64 bit unsigned mul */
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void OPPROTO op_mull_T0_T1(void)
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{
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uint64_t res;
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res = (uint64_t)T0 * (uint64_t)T1;
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T1 = res >> 32;
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T0 = res;
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}
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/* 64 bit signed mul */
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void OPPROTO op_imull_T0_T1(void)
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{
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uint64_t res;
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res = (int64_t)T0 * (int64_t)T1;
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T1 = res >> 32;
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T0 = res;
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}
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void OPPROTO op_addq_T0_T1(void)
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{
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uint64_t res;
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res = ((uint64_t)T1 << 32) | T0;
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res += ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
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T1 = res >> 32;
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T0 = res;
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}
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void OPPROTO op_logicq_cc(void)
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{
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env->NZF = (T1 & 0x80000000) | ((T0 | T1) != 0);
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}
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/* memory access */
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void OPPROTO op_ldub_T0_T1(void)
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{
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T0 = ldub((void *)T1);
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}
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void OPPROTO op_ldsb_T0_T1(void)
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{
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T0 = ldsb((void *)T1);
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}
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void OPPROTO op_lduw_T0_T1(void)
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{
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T0 = lduw((void *)T1);
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}
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void OPPROTO op_ldsw_T0_T1(void)
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{
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T0 = ldsw((void *)T1);
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}
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void OPPROTO op_ldl_T0_T1(void)
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{
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T0 = ldl((void *)T1);
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}
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void OPPROTO op_stb_T0_T1(void)
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{
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stb((void *)T1, T0);
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}
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void OPPROTO op_stw_T0_T1(void)
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{
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stw((void *)T1, T0);
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}
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void OPPROTO op_stl_T0_T1(void)
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{
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stl((void *)T1, T0);
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}
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void OPPROTO op_swpb_T0_T1(void)
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{
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int tmp;
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cpu_lock();
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tmp = ldub((void *)T1);
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stb((void *)T1, T0);
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T0 = tmp;
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cpu_unlock();
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}
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void OPPROTO op_swpl_T0_T1(void)
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{
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int tmp;
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cpu_lock();
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tmp = ldl((void *)T1);
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stl((void *)T1, T0);
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T0 = tmp;
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cpu_unlock();
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}
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/* shifts */
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/* T1 based */
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void OPPROTO op_shll_T1_im(void)
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{
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T1 = T1 << PARAM1;
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}
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void OPPROTO op_shrl_T1_im(void)
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{
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T1 = (uint32_t)T1 >> PARAM1;
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}
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void OPPROTO op_sarl_T1_im(void)
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{
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T1 = (int32_t)T1 >> PARAM1;
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}
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void OPPROTO op_rorl_T1_im(void)
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{
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int shift;
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shift = PARAM1;
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T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
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}
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/* T1 based, set C flag */
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void OPPROTO op_shll_T1_im_cc(void)
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{
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env->CF = (T1 >> (32 - PARAM1)) & 1;
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T1 = T1 << PARAM1;
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}
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void OPPROTO op_shrl_T1_im_cc(void)
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{
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env->CF = (T1 >> (PARAM1 - 1)) & 1;
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T1 = (uint32_t)T1 >> PARAM1;
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}
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void OPPROTO op_sarl_T1_im_cc(void)
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{
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env->CF = (T1 >> (PARAM1 - 1)) & 1;
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T1 = (int32_t)T1 >> PARAM1;
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}
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void OPPROTO op_rorl_T1_im_cc(void)
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{
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int shift;
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shift = PARAM1;
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env->CF = (T1 >> (shift - 1)) & 1;
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T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
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}
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/* T2 based */
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void OPPROTO op_shll_T2_im(void)
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{
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T2 = T2 << PARAM1;
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}
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void OPPROTO op_shrl_T2_im(void)
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{
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T2 = (uint32_t)T2 >> PARAM1;
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}
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void OPPROTO op_sarl_T2_im(void)
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{
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T2 = (int32_t)T2 >> PARAM1;
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}
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void OPPROTO op_rorl_T2_im(void)
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{
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int shift;
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shift = PARAM1;
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T2 = ((uint32_t)T2 >> shift) | (T2 << (32 - shift));
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}
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/* T1 based, use T0 as shift count */
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void OPPROTO op_shll_T1_T0(void)
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{
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int shift;
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shift = T0 & 0xff;
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if (shift >= 32)
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T1 = 0;
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else
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T1 = T1 << shift;
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FORCE_RET();
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}
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void OPPROTO op_shrl_T1_T0(void)
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{
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int shift;
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shift = T0 & 0xff;
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if (shift >= 32)
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T1 = 0;
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else
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T1 = (uint32_t)T1 >> shift;
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FORCE_RET();
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}
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void OPPROTO op_sarl_T1_T0(void)
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{
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int shift;
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|
shift = T0 & 0xff;
|
|
if (shift >= 32)
|
|
shift = 31;
|
|
T1 = (int32_t)T1 >> shift;
|
|
}
|
|
|
|
void OPPROTO op_rorl_T1_T0(void)
|
|
{
|
|
int shift;
|
|
shift = T0 & 0x1f;
|
|
if (shift) {
|
|
T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
|
|
}
|
|
FORCE_RET();
|
|
}
|
|
|
|
/* T1 based, use T0 as shift count and compute CF */
|
|
|
|
void OPPROTO op_shll_T1_T0_cc(void)
|
|
{
|
|
int shift;
|
|
shift = T0 & 0xff;
|
|
if (shift >= 32) {
|
|
if (shift == 32)
|
|
env->CF = T1 & 1;
|
|
else
|
|
env->CF = 0;
|
|
T1 = 0;
|
|
} else if (shift != 0) {
|
|
env->CF = (T1 >> (32 - shift)) & 1;
|
|
T1 = T1 << shift;
|
|
}
|
|
FORCE_RET();
|
|
}
|
|
|
|
void OPPROTO op_shrl_T1_T0_cc(void)
|
|
{
|
|
int shift;
|
|
shift = T0 & 0xff;
|
|
if (shift >= 32) {
|
|
if (shift == 32)
|
|
env->CF = (T1 >> 31) & 1;
|
|
else
|
|
env->CF = 0;
|
|
T1 = 0;
|
|
} else if (shift != 0) {
|
|
env->CF = (T1 >> (shift - 1)) & 1;
|
|
T1 = (uint32_t)T1 >> shift;
|
|
}
|
|
FORCE_RET();
|
|
}
|
|
|
|
void OPPROTO op_sarl_T1_T0_cc(void)
|
|
{
|
|
int shift;
|
|
shift = T0 & 0xff;
|
|
if (shift >= 32) {
|
|
env->CF = (T1 >> 31) & 1;
|
|
T1 = (int32_t)T1 >> 31;
|
|
} else {
|
|
env->CF = (T1 >> (shift - 1)) & 1;
|
|
T1 = (int32_t)T1 >> shift;
|
|
}
|
|
FORCE_RET();
|
|
}
|
|
|
|
void OPPROTO op_rorl_T1_T0_cc(void)
|
|
{
|
|
int shift1, shift;
|
|
shift1 = T0 & 0xff;
|
|
shift = shift1 & 0x1f;
|
|
if (shift == 0) {
|
|
if (shift1 != 0)
|
|
env->CF = (T1 >> 31) & 1;
|
|
} else {
|
|
env->CF = (T1 >> (shift - 1)) & 1;
|
|
T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
|
|
}
|
|
FORCE_RET();
|
|
}
|
|
|
|
/* exceptions */
|
|
|
|
void OPPROTO op_swi(void)
|
|
{
|
|
env->exception_index = EXCP_SWI;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void OPPROTO op_undef_insn(void)
|
|
{
|
|
env->exception_index = EXCP_UDEF;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
/* thread support */
|
|
|
|
spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
|
|
|
|
void cpu_lock(void)
|
|
{
|
|
spin_lock(&global_cpu_lock);
|
|
}
|
|
|
|
void cpu_unlock(void)
|
|
{
|
|
spin_unlock(&global_cpu_lock);
|
|
}
|
|
|