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/*
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* SH4 translation
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*
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* Copyright (c) 2005 Samuel Tardieu
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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 <stdarg.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include <assert.h> |
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#define DEBUG_DISAS
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#define SH4_DEBUG_DISAS
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//#define SH4_SINGLE_STEP
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#include "cpu.h" |
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#include "exec-all.h" |
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#include "disas.h" |
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enum {
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#define DEF(s, n, copy_size) INDEX_op_ ## s, |
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#include "opc.h" |
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#undef DEF
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NB_OPS, |
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}; |
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#ifdef USE_DIRECT_JUMP
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#define TBPARAM(x)
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#else
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#define TBPARAM(x) ((long)(x)) |
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#endif
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static uint16_t *gen_opc_ptr;
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static uint32_t *gen_opparam_ptr;
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#include "gen-op.h" |
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typedef struct DisasContext { |
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struct TranslationBlock *tb;
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target_ulong pc; |
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uint32_t sr; |
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uint16_t opcode; |
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uint32_t flags; |
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int memidx;
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uint32_t delayed_pc; |
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int singlestep_enabled;
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} DisasContext; |
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#ifdef CONFIG_USER_ONLY
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#define GEN_OP_LD(width) \
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void gen_op_ld##width##_T0_T0 (DisasContext *ctx) { \ |
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gen_op_ld##width##_T0_T0_raw(); \ |
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} |
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#define GEN_OP_ST(width) \
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void gen_op_st##width##_T0_T1 (DisasContext *ctx) { \ |
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gen_op_st##width##_T0_T1_raw(); \ |
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} |
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#else
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#define GEN_OP_LD(width) \
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void gen_op_ld##width##_T0_T0 (DisasContext *ctx) { \ |
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if (ctx->memidx) gen_op_ld##width##_T0_T0_kernel(); \ |
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else gen_op_ld##width##_T0_T0_user();\ |
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} |
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#define GEN_OP_ST(width) \
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void gen_op_st##width##_T0_T1 (DisasContext *ctx) { \ |
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if (ctx->memidx) gen_op_st##width##_T0_T1_kernel(); \ |
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else gen_op_st##width##_T0_T1_user();\ |
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} |
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#endif
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GEN_OP_LD(ub) |
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GEN_OP_LD(b) |
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GEN_OP_ST(b) |
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GEN_OP_LD(uw) |
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GEN_OP_LD(w) |
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GEN_OP_ST(w) |
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GEN_OP_LD(l) |
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GEN_OP_ST(l) |
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void cpu_dump_state(CPUState * env, FILE * f,
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int (*cpu_fprintf) (FILE * f, const char *fmt, ...), |
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int flags)
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{
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int i;
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cpu_fprintf(f, "pc=0x%08x sr=0x%08x pr=0x%08x\n",
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env->pc, env->sr, env->pr); |
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for (i = 0; i < 24; i += 4) { |
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cpu_fprintf(f, "r%d=0x%08x r%d=0x%08x r%d=0x%08x r%d=0x%08x\n",
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i, env->gregs[i], i + 1, env->gregs[i + 1], |
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i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]); |
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} |
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if (env->flags & DELAY_SLOT) {
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cpu_fprintf(f, "in delay slot (delayed_pc=0x%08x)\n",
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env->delayed_pc); |
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} else if (env->flags & DELAY_SLOT_CONDITIONAL) { |
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cpu_fprintf(f, "in conditional delay slot (delayed_pc=0x%08x)\n",
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env->delayed_pc); |
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} |
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} |
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void cpu_sh4_reset(CPUSH4State * env)
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{
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env->sr = 0x700000F0; /* MD, RB, BL, I3-I0 */ |
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env->vbr = 0;
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env->pc = 0xA0000000;
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env->fpscr = 0x00040001;
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env->mmucr = 0;
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} |
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CPUSH4State *cpu_sh4_init(void)
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{
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CPUSH4State *env; |
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env = qemu_mallocz(sizeof(CPUSH4State));
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if (!env)
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return NULL; |
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cpu_exec_init(env); |
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cpu_sh4_reset(env); |
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tlb_flush(env, 1);
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return env;
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} |
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#ifdef CONFIG_USER_ONLY
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target_ulong cpu_get_phys_page_debug(CPUState * env, target_ulong addr) |
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{
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return addr;
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} |
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#else
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target_ulong cpu_get_phys_page_debug(CPUState * env, target_ulong addr) |
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{
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target_ulong physical; |
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int prot;
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get_physical_address(env, &physical, &prot, addr, PAGE_READ, 0);
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return physical;
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} |
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#endif
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static void gen_goto_tb(DisasContext * ctx, int n, target_ulong dest) |
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{
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TranslationBlock *tb; |
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tb = ctx->tb; |
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if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
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!ctx->singlestep_enabled) {
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/* Use a direct jump if in same page and singlestep not enabled */
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if (n == 0) |
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gen_op_goto_tb0(TBPARAM(tb)); |
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else
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gen_op_goto_tb1(TBPARAM(tb)); |
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gen_op_movl_imm_T0((long) tb + n);
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} else {
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gen_op_movl_imm_T0(0);
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} |
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gen_op_movl_imm_PC(dest); |
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if (ctx->singlestep_enabled)
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gen_op_debug(); |
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gen_op_exit_tb(); |
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} |
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/* Jump to pc after an exception */
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static void gen_jump_exception(DisasContext * ctx) |
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{
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gen_op_movl_imm_T0(0);
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if (ctx->singlestep_enabled)
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gen_op_debug(); |
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gen_op_exit_tb(); |
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} |
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static void gen_jump(DisasContext * ctx) |
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{
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if (ctx->delayed_pc == (uint32_t) - 1) { |
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/* Target is not statically known, it comes necessarily from a
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delayed jump as immediate jump are conditinal jumps */
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gen_op_movl_delayed_pc_PC(); |
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gen_op_movl_imm_T0(0);
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if (ctx->singlestep_enabled)
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gen_op_debug(); |
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gen_op_exit_tb(); |
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} else {
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gen_goto_tb(ctx, 0, ctx->delayed_pc);
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} |
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} |
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/* Immediate conditional jump (bt or bf) */
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static void gen_conditional_jump(DisasContext * ctx, |
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target_ulong ift, target_ulong ifnott) |
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{
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int l1;
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l1 = gen_new_label(); |
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gen_op_jT(l1); |
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gen_goto_tb(ctx, 0, ifnott);
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gen_set_label(l1); |
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gen_goto_tb(ctx, 1, ift);
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} |
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/* Delayed conditional jump (bt or bf) */
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static void gen_delayed_conditional_jump(DisasContext * ctx) |
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{
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int l1;
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l1 = gen_new_label(); |
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gen_op_jTT2(l1); |
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gen_goto_tb(ctx, 0, ctx->pc);
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gen_set_label(l1); |
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gen_goto_tb(ctx, 1, ctx->delayed_pc);
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} |
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#define B3_0 (ctx->opcode & 0xf) |
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#define B6_4 ((ctx->opcode >> 4) & 0x7) |
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#define B7_4 ((ctx->opcode >> 4) & 0xf) |
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#define B7_0 (ctx->opcode & 0xff) |
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#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff)) |
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#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \ |
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(ctx->opcode & 0xfff))
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#define B11_8 ((ctx->opcode >> 8) & 0xf) |
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#define B15_12 ((ctx->opcode >> 12) & 0xf) |
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#define REG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB) ? \ |
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(x) + 16 : (x))
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#define ALTREG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) != (SR_MD | SR_RB) \ |
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? (x) + 16 : (x))
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#define CHECK_NOT_DELAY_SLOT \
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if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
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{gen_op_raise_slot_illegal_instruction (); ctx->flags |= BRANCH_EXCEPTION; \
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return;}
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void decode_opc(DisasContext * ctx)
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{
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#if 0
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fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode);
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#endif
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switch (ctx->opcode) {
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case 0x0019: /* div0u */ |
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printf("div0u\n");
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gen_op_div0u(); |
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return;
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case 0x000b: /* rts */ |
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CHECK_NOT_DELAY_SLOT gen_op_rts(); |
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ctx->flags |= DELAY_SLOT; |
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ctx->delayed_pc = (uint32_t) - 1;
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return;
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case 0x0028: /* clrmac */ |
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gen_op_clrmac(); |
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return;
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case 0x0048: /* clrs */ |
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gen_op_clrs(); |
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return;
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case 0x0008: /* clrt */ |
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gen_op_clrt(); |
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return;
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case 0x0038: /* ldtlb */ |
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assert(0); /* XXXXX */ |
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return;
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case 0x004b: /* rte */ |
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CHECK_NOT_DELAY_SLOT gen_op_rte(); |
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ctx->flags |= DELAY_SLOT; |
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ctx->delayed_pc = (uint32_t) - 1;
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return;
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case 0x0058: /* sets */ |
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gen_op_sets(); |
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return;
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case 0x0018: /* sett */ |
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gen_op_sett(); |
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return;
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case 0xfbfb: /* frchg */ |
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assert(0); /* XXXXX */ |
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return;
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case 0xf3fb: /* fschg */ |
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assert(0); /* XXXXX */ |
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return;
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case 0x0009: /* nop */ |
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return;
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case 0x001b: /* sleep */ |
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assert(0); /* XXXXX */ |
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return;
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} |
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|
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switch (ctx->opcode & 0xf000) { |
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case 0x1000: /* mov.l Rm,@(disp,Rn) */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_movl_rN_T1(REG(B11_8)); |
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gen_op_addl_imm_T1(B3_0 * 4);
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gen_op_stl_T0_T1(ctx); |
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return;
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case 0x5000: /* mov.l @(disp,Rm),Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_addl_imm_T0(B3_0 * 4);
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gen_op_ldl_T0_T0(ctx); |
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gen_op_movl_T0_rN(REG(B11_8)); |
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return;
|
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case 0xe000: /* mov.l #imm,Rn */ |
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gen_op_movl_imm_rN(B7_0s, REG(B11_8)); |
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return;
|
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case 0x9000: /* mov.w @(disp,PC),Rn */ |
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gen_op_movl_imm_T0(ctx->pc + 4 + B7_0 * 2); |
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gen_op_ldw_T0_T0(ctx); |
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gen_op_movl_T0_rN(REG(B11_8)); |
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return;
|
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case 0xd000: /* mov.l @(disp,PC),Rn */ |
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gen_op_movl_imm_T0((ctx->pc + 4 + B7_0 * 4) & ~3); |
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gen_op_ldl_T0_T0(ctx); |
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gen_op_movl_T0_rN(REG(B11_8)); |
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return;
|
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case 0x7000: /* add.l #imm,Rn */ |
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gen_op_add_imm_rN(B7_0s, REG(B11_8)); |
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return;
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case 0xa000: /* bra disp */ |
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CHECK_NOT_DELAY_SLOT |
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gen_op_bra(ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2); |
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ctx->flags |= DELAY_SLOT; |
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return;
|
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case 0xb000: /* bsr disp */ |
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CHECK_NOT_DELAY_SLOT |
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gen_op_bsr(ctx->pc + 4, ctx->delayed_pc =
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ctx->pc + 4 + B11_0s * 2); |
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ctx->flags |= DELAY_SLOT; |
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return;
|
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} |
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|
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switch (ctx->opcode & 0xf00f) { |
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case 0x6003: /* mov Rm,Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_movl_T0_rN(REG(B11_8)); |
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return;
|
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case 0x2000: /* mov.b Rm,@Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_movl_rN_T1(REG(B11_8)); |
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gen_op_stb_T0_T1(ctx); |
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return;
|
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case 0x2001: /* mov.w Rm,@Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_movl_rN_T1(REG(B11_8)); |
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gen_op_stw_T0_T1(ctx); |
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return;
|
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case 0x2002: /* mov.l Rm,@Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_movl_rN_T1(REG(B11_8)); |
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gen_op_stl_T0_T1(ctx); |
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return;
|
| 363 |
case 0x6000: /* mov.b @Rm,Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_ldb_T0_T0(ctx); |
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gen_op_movl_T0_rN(REG(B11_8)); |
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return;
|
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case 0x6001: /* mov.w @Rm,Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
| 370 |
gen_op_ldw_T0_T0(ctx); |
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gen_op_movl_T0_rN(REG(B11_8)); |
| 372 |
return;
|
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case 0x6002: /* mov.l @Rm,Rn */ |
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gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_ldl_T0_T0(ctx); |
| 376 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 377 |
return;
|
| 378 |
case 0x2004: /* mov.b Rm,@-Rn */ |
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gen_op_dec1_rN(REG(B11_8)); |
| 380 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 381 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 382 |
gen_op_stb_T0_T1(ctx); |
| 383 |
return;
|
| 384 |
case 0x2005: /* mov.w Rm,@-Rn */ |
| 385 |
gen_op_dec2_rN(REG(B11_8)); |
| 386 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 387 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 388 |
gen_op_stw_T0_T1(ctx); |
| 389 |
return;
|
| 390 |
case 0x2006: /* mov.l Rm,@-Rn */ |
| 391 |
gen_op_dec4_rN(REG(B11_8)); |
| 392 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 393 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 394 |
gen_op_stl_T0_T1(ctx); |
| 395 |
return;
|
| 396 |
case 0x6004: /* mov.l @Rm+,Rn */ |
| 397 |
gen_op_movl_rN_T0(REG(B7_4)); |
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gen_op_ldb_T0_T0(ctx); |
| 399 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 400 |
gen_op_inc1_rN(REG(B7_4)); |
| 401 |
return;
|
| 402 |
case 0x6005: /* mov.w @Rm+,Rn */ |
| 403 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 404 |
gen_op_ldw_T0_T0(ctx); |
| 405 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 406 |
gen_op_inc2_rN(REG(B7_4)); |
| 407 |
return;
|
| 408 |
case 0x6006: /* mov.l @Rm+,Rn */ |
| 409 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 410 |
gen_op_ldl_T0_T0(ctx); |
| 411 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 412 |
gen_op_inc4_rN(REG(B7_4)); |
| 413 |
return;
|
| 414 |
case 0x0004: /* mov.b Rm,@(R0,Rn) */ |
| 415 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 416 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 417 |
gen_op_add_rN_T1(REG(0));
|
| 418 |
gen_op_stb_T0_T1(ctx); |
| 419 |
return;
|
| 420 |
case 0x0005: /* mov.w Rm,@(R0,Rn) */ |
| 421 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 422 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 423 |
gen_op_add_rN_T1(REG(0));
|
| 424 |
gen_op_stw_T0_T1(ctx); |
| 425 |
return;
|
| 426 |
case 0x0006: /* mov.l Rm,@(R0,Rn) */ |
| 427 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 428 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 429 |
gen_op_add_rN_T1(REG(0));
|
| 430 |
gen_op_stl_T0_T1(ctx); |
| 431 |
return;
|
| 432 |
case 0x000c: /* mov.b @(R0,Rm),Rn */ |
| 433 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 434 |
gen_op_add_rN_T0(REG(0));
|
| 435 |
gen_op_ldb_T0_T0(ctx); |
| 436 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 437 |
return;
|
| 438 |
case 0x000d: /* mov.w @(R0,Rm),Rn */ |
| 439 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 440 |
gen_op_add_rN_T0(REG(0));
|
| 441 |
gen_op_ldw_T0_T0(ctx); |
| 442 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 443 |
return;
|
| 444 |
case 0x000e: /* mov.l @(R0,Rm),Rn */ |
| 445 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 446 |
gen_op_add_rN_T0(REG(0));
|
| 447 |
gen_op_ldl_T0_T0(ctx); |
| 448 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 449 |
return;
|
| 450 |
case 0x6008: /* swap.b Rm,Rn */ |
| 451 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 452 |
gen_op_swapb_T0(); |
| 453 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 454 |
return;
|
| 455 |
case 0x6009: /* swap.w Rm,Rn */ |
| 456 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 457 |
gen_op_swapw_T0(); |
| 458 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 459 |
return;
|
| 460 |
case 0x200d: /* xtrct Rm,Rn */ |
| 461 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 462 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 463 |
gen_op_xtrct_T0_T1(); |
| 464 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 465 |
return;
|
| 466 |
case 0x300c: /* add Rm,Rn */ |
| 467 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 468 |
gen_op_add_T0_rN(REG(B11_8)); |
| 469 |
return;
|
| 470 |
case 0x300e: /* addc Rm,Rn */ |
| 471 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 472 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 473 |
gen_op_addc_T0_T1(); |
| 474 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 475 |
return;
|
| 476 |
case 0x300f: /* addv Rm,Rn */ |
| 477 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 478 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 479 |
gen_op_addv_T0_T1(); |
| 480 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 481 |
return;
|
| 482 |
case 0x2009: /* and Rm,Rn */ |
| 483 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 484 |
gen_op_and_T0_rN(REG(B11_8)); |
| 485 |
return;
|
| 486 |
case 0x3000: /* cmp/eq Rm,Rn */ |
| 487 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 488 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 489 |
gen_op_cmp_eq_T0_T1(); |
| 490 |
return;
|
| 491 |
case 0x3003: /* cmp/ge Rm,Rn */ |
| 492 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 493 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 494 |
gen_op_cmp_ge_T0_T1(); |
| 495 |
return;
|
| 496 |
case 0x3007: /* cmp/gt Rm,Rn */ |
| 497 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 498 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 499 |
gen_op_cmp_gt_T0_T1(); |
| 500 |
return;
|
| 501 |
case 0x3006: /* cmp/hi Rm,Rn */ |
| 502 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 503 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 504 |
gen_op_cmp_hi_T0_T1(); |
| 505 |
return;
|
| 506 |
case 0x3002: /* cmp/hs Rm,Rn */ |
| 507 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 508 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 509 |
gen_op_cmp_hs_T0_T1(); |
| 510 |
return;
|
| 511 |
case 0x200c: /* cmp/str Rm,Rn */ |
| 512 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 513 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 514 |
gen_op_cmp_str_T0_T1(); |
| 515 |
return;
|
| 516 |
case 0x2007: /* div0s Rm,Rn */ |
| 517 |
printf("div0s\n");
|
| 518 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 519 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 520 |
gen_op_div0s_T0_T1(); |
| 521 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 522 |
return;
|
| 523 |
case 0x3004: /* div1 Rm,Rn */ |
| 524 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 525 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 526 |
gen_op_div1_T0_T1(); |
| 527 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 528 |
return;
|
| 529 |
case 0x300d: /* dmuls.l Rm,Rn */ |
| 530 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 531 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 532 |
gen_op_dmulsl_T0_T1(); |
| 533 |
return;
|
| 534 |
case 0x3005: /* dmulu.l Rm,Rn */ |
| 535 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 536 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 537 |
gen_op_dmulul_T0_T1(); |
| 538 |
return;
|
| 539 |
case 0x600e: /* exts.b Rm,Rn */ |
| 540 |
gen_op_movb_rN_T0(REG(B7_4)); |
| 541 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 542 |
return;
|
| 543 |
case 0x600f: /* exts.w Rm,Rn */ |
| 544 |
gen_op_movw_rN_T0(REG(B7_4)); |
| 545 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 546 |
return;
|
| 547 |
case 0x600c: /* extu.b Rm,Rn */ |
| 548 |
gen_op_movub_rN_T0(REG(B7_4)); |
| 549 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 550 |
return;
|
| 551 |
case 0x600d: /* extu.w Rm,Rn */ |
| 552 |
gen_op_movuw_rN_T0(REG(B7_4)); |
| 553 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 554 |
return;
|
| 555 |
case 0x000f: /* mac.l @Rm+,@Rn- */ |
| 556 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 557 |
gen_op_ldl_T0_T0(ctx); |
| 558 |
gen_op_movl_T0_T1(); |
| 559 |
gen_op_movl_rN_T1(REG(B7_4)); |
| 560 |
gen_op_ldl_T0_T0(ctx); |
| 561 |
gen_op_macl_T0_T1(); |
| 562 |
gen_op_inc4_rN(REG(B7_4)); |
| 563 |
gen_op_inc4_rN(REG(B11_8)); |
| 564 |
return;
|
| 565 |
case 0x400f: /* mac.w @Rm+,@Rn+ */ |
| 566 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 567 |
gen_op_ldl_T0_T0(ctx); |
| 568 |
gen_op_movl_T0_T1(); |
| 569 |
gen_op_movl_rN_T1(REG(B7_4)); |
| 570 |
gen_op_ldl_T0_T0(ctx); |
| 571 |
gen_op_macw_T0_T1(); |
| 572 |
gen_op_inc2_rN(REG(B7_4)); |
| 573 |
gen_op_inc2_rN(REG(B11_8)); |
| 574 |
return;
|
| 575 |
case 0x0007: /* mul.l Rm,Rn */ |
| 576 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 577 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 578 |
gen_op_mull_T0_T1(); |
| 579 |
return;
|
| 580 |
case 0x200f: /* muls.w Rm,Rn */ |
| 581 |
gen_op_movw_rN_T0(REG(B7_4)); |
| 582 |
gen_op_movw_rN_T1(REG(B11_8)); |
| 583 |
gen_op_mulsw_T0_T1(); |
| 584 |
return;
|
| 585 |
case 0x200e: /* mulu.w Rm,Rn */ |
| 586 |
gen_op_movuw_rN_T0(REG(B7_4)); |
| 587 |
gen_op_movuw_rN_T1(REG(B11_8)); |
| 588 |
gen_op_muluw_T0_T1(); |
| 589 |
return;
|
| 590 |
case 0x600b: /* neg Rm,Rn */ |
| 591 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 592 |
gen_op_neg_T0(); |
| 593 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 594 |
return;
|
| 595 |
case 0x600a: /* negc Rm,Rn */ |
| 596 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 597 |
gen_op_negc_T0(); |
| 598 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 599 |
return;
|
| 600 |
case 0x6007: /* not Rm,Rn */ |
| 601 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 602 |
gen_op_not_T0(); |
| 603 |
gen_op_movl_T0_rN(REG(B11_8)); |
| 604 |
return;
|
| 605 |
case 0x200b: /* or Rm,Rn */ |
| 606 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 607 |
gen_op_or_T0_rN(REG(B11_8)); |
| 608 |
return;
|
| 609 |
case 0x400c: /* shad Rm,Rn */ |
| 610 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 611 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 612 |
gen_op_shad_T0_T1(); |
| 613 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 614 |
return;
|
| 615 |
case 0x400d: /* shld Rm,Rn */ |
| 616 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 617 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 618 |
gen_op_shld_T0_T1(); |
| 619 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 620 |
return;
|
| 621 |
case 0x3008: /* sub Rm,Rn */ |
| 622 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 623 |
gen_op_sub_T0_rN(REG(B11_8)); |
| 624 |
return;
|
| 625 |
case 0x300a: /* subc Rm,Rn */ |
| 626 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 627 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 628 |
gen_op_subc_T0_T1(); |
| 629 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 630 |
return;
|
| 631 |
case 0x300b: /* subv Rm,Rn */ |
| 632 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 633 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 634 |
gen_op_subv_T0_T1(); |
| 635 |
gen_op_movl_T1_rN(REG(B11_8)); |
| 636 |
return;
|
| 637 |
case 0x2008: /* tst Rm,Rn */ |
| 638 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 639 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 640 |
gen_op_tst_T0_T1(); |
| 641 |
return;
|
| 642 |
case 0x200a: /* xor Rm,Rn */ |
| 643 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 644 |
gen_op_xor_T0_rN(REG(B11_8)); |
| 645 |
return;
|
| 646 |
} |
| 647 |
|
| 648 |
switch (ctx->opcode & 0xff00) { |
| 649 |
case 0xc900: /* and #imm,R0 */ |
| 650 |
gen_op_and_imm_rN(B7_0, REG(0));
|
| 651 |
return;
|
| 652 |
case 0xcd00: /* and.b #imm,@(R0+GBR) */ |
| 653 |
gen_op_movl_rN_T0(REG(0));
|
| 654 |
gen_op_addl_GBR_T0(); |
| 655 |
gen_op_movl_T0_T1(); |
| 656 |
gen_op_ldb_T0_T0(ctx); |
| 657 |
gen_op_and_imm_T0(B7_0); |
| 658 |
gen_op_stb_T0_T1(ctx); |
| 659 |
return;
|
| 660 |
case 0x8b00: /* bf label */ |
| 661 |
CHECK_NOT_DELAY_SLOT |
| 662 |
gen_conditional_jump(ctx, ctx->pc + 2,
|
| 663 |
ctx->pc + 4 + B7_0s * 2); |
| 664 |
ctx->flags |= BRANCH_CONDITIONAL; |
| 665 |
return;
|
| 666 |
case 0x8f00: /* bf/s label */ |
| 667 |
CHECK_NOT_DELAY_SLOT |
| 668 |
gen_op_bf_s(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2); |
| 669 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
| 670 |
return;
|
| 671 |
case 0x8900: /* bt label */ |
| 672 |
CHECK_NOT_DELAY_SLOT |
| 673 |
gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2, |
| 674 |
ctx->pc + 2);
|
| 675 |
ctx->flags |= BRANCH_CONDITIONAL; |
| 676 |
return;
|
| 677 |
case 0x8d00: /* bt/s label */ |
| 678 |
CHECK_NOT_DELAY_SLOT |
| 679 |
gen_op_bt_s(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2); |
| 680 |
ctx->flags |= DELAY_SLOT_CONDITIONAL; |
| 681 |
return;
|
| 682 |
case 0x8800: /* cmp/eq #imm,R0 */ |
| 683 |
gen_op_movl_rN_T0(REG(0));
|
| 684 |
gen_op_cmp_eq_imm_T0(B7_0s); |
| 685 |
return;
|
| 686 |
case 0xc400: /* mov.b @(disp,GBR),R0 */ |
| 687 |
gen_op_stc_gbr_T0(); |
| 688 |
gen_op_addl_imm_T0(B7_0); |
| 689 |
gen_op_ldb_T0_T0(ctx); |
| 690 |
gen_op_movl_T0_rN(REG(0));
|
| 691 |
return;
|
| 692 |
case 0xc500: /* mov.w @(disp,GBR),R0 */ |
| 693 |
gen_op_stc_gbr_T0(); |
| 694 |
gen_op_addl_imm_T0(B7_0); |
| 695 |
gen_op_ldw_T0_T0(ctx); |
| 696 |
gen_op_movl_T0_rN(REG(0));
|
| 697 |
return;
|
| 698 |
case 0xc600: /* mov.l @(disp,GBR),R0 */ |
| 699 |
gen_op_stc_gbr_T0(); |
| 700 |
gen_op_addl_imm_T0(B7_0); |
| 701 |
gen_op_ldl_T0_T0(ctx); |
| 702 |
gen_op_movl_T0_rN(REG(0));
|
| 703 |
return;
|
| 704 |
case 0xc000: /* mov.b R0,@(disp,GBR) */ |
| 705 |
gen_op_stc_gbr_T0(); |
| 706 |
gen_op_addl_imm_T0(B7_0); |
| 707 |
gen_op_movl_T0_T1(); |
| 708 |
gen_op_movl_rN_T0(REG(0));
|
| 709 |
gen_op_stb_T0_T1(ctx); |
| 710 |
return;
|
| 711 |
case 0xc100: /* mov.w R0,@(disp,GBR) */ |
| 712 |
gen_op_stc_gbr_T0(); |
| 713 |
gen_op_addl_imm_T0(B7_0); |
| 714 |
gen_op_movl_T0_T1(); |
| 715 |
gen_op_movl_rN_T0(REG(0));
|
| 716 |
gen_op_stw_T0_T1(ctx); |
| 717 |
return;
|
| 718 |
case 0xc200: /* mov.l R0,@(disp,GBR) */ |
| 719 |
gen_op_stc_gbr_T0(); |
| 720 |
gen_op_addl_imm_T0(B7_0); |
| 721 |
gen_op_movl_T0_T1(); |
| 722 |
gen_op_movl_rN_T0(REG(0));
|
| 723 |
gen_op_stl_T0_T1(ctx); |
| 724 |
return;
|
| 725 |
case 0x8000: /* mov.b R0,@(disp,Rn) */ |
| 726 |
gen_op_movl_rN_T0(REG(0));
|
| 727 |
gen_op_movl_rN_T1(REG(B7_4)); |
| 728 |
gen_op_addl_imm_T1(B3_0); |
| 729 |
gen_op_stb_T0_T1(ctx); |
| 730 |
return;
|
| 731 |
case 0x8100: /* mov.w R0,@(disp,Rn) */ |
| 732 |
gen_op_movl_rN_T0(REG(0));
|
| 733 |
gen_op_movl_rN_T1(REG(B7_4)); |
| 734 |
gen_op_addl_imm_T1(B3_0 * 2);
|
| 735 |
gen_op_stw_T0_T1(ctx); |
| 736 |
return;
|
| 737 |
case 0x8400: /* mov.b @(disp,Rn),R0 */ |
| 738 |
gen_op_movl_rN_T0(REG(0));
|
| 739 |
gen_op_movl_rN_T1(REG(B7_4)); |
| 740 |
gen_op_addl_imm_T1(B3_0); |
| 741 |
gen_op_stb_T0_T1(ctx); |
| 742 |
return;
|
| 743 |
case 0x8500: /* mov.w @(disp,Rn),R0 */ |
| 744 |
gen_op_movl_rN_T0(REG(B7_4)); |
| 745 |
gen_op_addl_imm_T0(B3_0 * 2);
|
| 746 |
gen_op_ldw_T0_T0(ctx); |
| 747 |
gen_op_movl_T0_rN(REG(0));
|
| 748 |
return;
|
| 749 |
case 0xc700: /* mova @(disp,PC),R0 */ |
| 750 |
gen_op_movl_imm_rN(((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3, |
| 751 |
REG(0));
|
| 752 |
return;
|
| 753 |
case 0xcb00: /* or #imm,R0 */ |
| 754 |
gen_op_or_imm_rN(B7_0, REG(0));
|
| 755 |
return;
|
| 756 |
case 0xcf00: /* or.b #imm,@(R0+GBR) */ |
| 757 |
gen_op_movl_rN_T0(REG(0));
|
| 758 |
gen_op_addl_GBR_T0(); |
| 759 |
gen_op_movl_T0_T1(); |
| 760 |
gen_op_ldb_T0_T0(ctx); |
| 761 |
gen_op_or_imm_T0(B7_0); |
| 762 |
gen_op_stb_T0_T1(ctx); |
| 763 |
return;
|
| 764 |
case 0xc300: /* trapa #imm */ |
| 765 |
CHECK_NOT_DELAY_SLOT gen_op_movl_imm_PC(ctx->pc); |
| 766 |
gen_op_trapa(B7_0); |
| 767 |
ctx->flags |= BRANCH; |
| 768 |
return;
|
| 769 |
case 0xc800: /* tst #imm,R0 */ |
| 770 |
gen_op_tst_imm_rN(B7_0, REG(0));
|
| 771 |
return;
|
| 772 |
case 0xcc00: /* tst #imm,@(R0+GBR) */ |
| 773 |
gen_op_movl_rN_T0(REG(0));
|
| 774 |
gen_op_addl_GBR_T0(); |
| 775 |
gen_op_ldb_T0_T0(ctx); |
| 776 |
gen_op_tst_imm_T0(B7_0); |
| 777 |
return;
|
| 778 |
case 0xca00: /* xor #imm,R0 */ |
| 779 |
gen_op_xor_imm_rN(B7_0, REG(0));
|
| 780 |
return;
|
| 781 |
case 0xce00: /* xor.b #imm,@(R0+GBR) */ |
| 782 |
gen_op_movl_rN_T0(REG(0));
|
| 783 |
gen_op_addl_GBR_T0(); |
| 784 |
gen_op_movl_T0_T1(); |
| 785 |
gen_op_ldb_T0_T0(ctx); |
| 786 |
gen_op_xor_imm_T0(B7_0); |
| 787 |
gen_op_stb_T0_T1(ctx); |
| 788 |
return;
|
| 789 |
} |
| 790 |
|
| 791 |
switch (ctx->opcode & 0xf08f) { |
| 792 |
case 0x408e: /* ldc Rm,Rn_BANK */ |
| 793 |
gen_op_movl_rN_rN(REG(B11_8), ALTREG(B6_4)); |
| 794 |
return;
|
| 795 |
case 0x4087: /* ldc.l @Rm+,Rn_BANK */ |
| 796 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 797 |
gen_op_ldl_T0_T0(ctx); |
| 798 |
gen_op_movl_T0_rN(ALTREG(B6_4)); |
| 799 |
gen_op_inc4_rN(REG(B11_8)); |
| 800 |
return;
|
| 801 |
case 0x0082: /* stc Rm_BANK,Rn */ |
| 802 |
gen_op_movl_rN_rN(ALTREG(B6_4), REG(B11_8)); |
| 803 |
return;
|
| 804 |
case 0x4083: /* stc.l Rm_BANK,@-Rn */ |
| 805 |
gen_op_dec4_rN(REG(B11_8)); |
| 806 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 807 |
gen_op_movl_rN_T0(ALTREG(B6_4)); |
| 808 |
gen_op_stl_T0_T1(ctx); |
| 809 |
return;
|
| 810 |
} |
| 811 |
|
| 812 |
switch (ctx->opcode & 0xf0ff) { |
| 813 |
case 0x0023: /* braf Rn */ |
| 814 |
CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); |
| 815 |
gen_op_braf_T0(ctx->pc + 4);
|
| 816 |
ctx->flags |= DELAY_SLOT; |
| 817 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 818 |
return;
|
| 819 |
case 0x0003: /* bsrf Rn */ |
| 820 |
CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); |
| 821 |
gen_op_bsrf_T0(ctx->pc + 4);
|
| 822 |
ctx->flags |= DELAY_SLOT; |
| 823 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 824 |
return;
|
| 825 |
case 0x4015: /* cmp/pl Rn */ |
| 826 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 827 |
gen_op_cmp_pl_T0(); |
| 828 |
return;
|
| 829 |
case 0x4011: /* cmp/pz Rn */ |
| 830 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 831 |
gen_op_cmp_pz_T0(); |
| 832 |
return;
|
| 833 |
case 0x4010: /* dt Rn */ |
| 834 |
gen_op_dt_rN(REG(B11_8)); |
| 835 |
return;
|
| 836 |
case 0x402b: /* jmp @Rn */ |
| 837 |
CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); |
| 838 |
gen_op_jmp_T0(); |
| 839 |
ctx->flags |= DELAY_SLOT; |
| 840 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 841 |
return;
|
| 842 |
case 0x400b: /* jsr @Rn */ |
| 843 |
CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); |
| 844 |
gen_op_jsr_T0(ctx->pc + 4);
|
| 845 |
ctx->flags |= DELAY_SLOT; |
| 846 |
ctx->delayed_pc = (uint32_t) - 1;
|
| 847 |
return;
|
| 848 |
#define LDST(reg,ldnum,ldpnum,ldop,stnum,stpnum,stop,extrald) \
|
| 849 |
case ldnum: \
|
| 850 |
gen_op_movl_rN_T0 (REG(B11_8)); \ |
| 851 |
gen_op_##ldop##_T0_##reg (); \ |
| 852 |
extrald \ |
| 853 |
return; \
|
| 854 |
case ldpnum: \
|
| 855 |
gen_op_movl_rN_T0 (REG(B11_8)); \ |
| 856 |
gen_op_ldl_T0_T0 (ctx); \ |
| 857 |
gen_op_inc4_rN (REG(B11_8)); \ |
| 858 |
gen_op_##ldop##_T0_##reg (); \ |
| 859 |
extrald \ |
| 860 |
return; \
|
| 861 |
case stnum: \
|
| 862 |
gen_op_##stop##_##reg##_T0 (); \ |
| 863 |
gen_op_movl_T0_rN (REG(B11_8)); \ |
| 864 |
return; \
|
| 865 |
case stpnum: \
|
| 866 |
gen_op_##stop##_##reg##_T0 (); \ |
| 867 |
gen_op_dec4_rN (REG(B11_8)); \ |
| 868 |
gen_op_movl_rN_T1 (REG(B11_8)); \ |
| 869 |
gen_op_stl_T0_T1 (ctx); \ |
| 870 |
return;
|
| 871 |
LDST(sr, 0x400e, 0x4007, ldc, 0x0002, 0x4003, stc, ctx->flags |= |
| 872 |
MODE_CHANGE; |
| 873 |
) |
| 874 |
LDST(gbr, 0x401e, 0x4017, ldc, 0x0012, 0x4013, stc,) |
| 875 |
LDST(vbr, 0x402e, 0x4027, ldc, 0x0022, 0x4023, stc,) |
| 876 |
LDST(ssr, 0x403e, 0x4037, ldc, 0x0032, 0x4033, stc,) |
| 877 |
LDST(spc, 0x404e, 0x4047, ldc, 0x0042, 0x4043, stc,) |
| 878 |
LDST(dbr, 0x40fa, 0x40f6, ldc, 0x00fa, 0x40f2, stc,) |
| 879 |
LDST(mach, 0x400a, 0x4006, lds, 0x000a, 0x4002, sts,) |
| 880 |
LDST(macl, 0x401a, 0x4016, lds, 0x001a, 0x4012, sts,) |
| 881 |
LDST(pr, 0x402a, 0x4026, lds, 0x002a, 0x4022, sts,) |
| 882 |
case 0x00c3: /* movca.l R0,@Rm */ |
| 883 |
gen_op_movl_rN_T0(REG(0));
|
| 884 |
gen_op_movl_rN_T1(REG(B11_8)); |
| 885 |
gen_op_stl_T0_T1(ctx); |
| 886 |
return;
|
| 887 |
case 0x0029: /* movt Rn */ |
| 888 |
gen_op_movt_rN(REG(B11_8)); |
| 889 |
return;
|
| 890 |
case 0x0093: /* ocbi @Rn */ |
| 891 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 892 |
gen_op_ldl_T0_T0(ctx); |
| 893 |
return;
|
| 894 |
case 0x00a2: /* ocbp @Rn */ |
| 895 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 896 |
gen_op_ldl_T0_T0(ctx); |
| 897 |
return;
|
| 898 |
case 0x00b3: /* ocbwb @Rn */ |
| 899 |
gen_op_movl_rN_T0(REG(B11_8)); |
| 900 |
gen_op_ldl_T0_T0(ctx); |
| 901 |
return;
|
| 902 |
case 0x0083: /* pref @Rn */ |
| 903 |
return;
|
| 904 |
case 0x4024: /* rotcl Rn */ |
| 905 |
gen_op_rotcl_Rn(REG(B11_8)); |
| 906 |
return;
|
| 907 |
case 0x4025: /* rotcr Rn */ |
| 908 |
gen_op_rotcr_Rn(REG(B11_8)); |
| 909 |
return;
|
| 910 |
case 0x4004: /* rotl Rn */ |
| 911 |
gen_op_rotl_Rn(REG(B11_8)); |
| 912 |
return;
|
| 913 |
case 0x4005: /* rotr Rn */ |
| 914 |
gen_op_rotr_Rn(REG(B11_8)); |
| 915 |
return;
|
| 916 |
case 0x4000: /* shll Rn */ |
| 917 |
case 0x4020: /* shal Rn */ |
| 918 |
gen_op_shal_Rn(REG(B11_8)); |
| 919 |
return;
|
| 920 |
case 0x4021: /* shar Rn */ |
| 921 |
gen_op_shar_Rn(REG(B11_8)); |
| 922 |
return;
|
| 923 |
case 0x4001: /* shlr Rn */ |
| 924 |
gen_op_shlr_Rn(REG(B11_8)); |
| 925 |
return;
|
| 926 |
case 0x4008: /* shll2 Rn */ |
| 927 |
gen_op_shll2_Rn(REG(B11_8)); |
| 928 |
return;
|
| 929 |
case 0x4018: /* shll8 Rn */ |
| 930 |
gen_op_shll8_Rn(REG(B11_8)); |
| 931 |
return;
|
| 932 |
case 0x4028: /* shll16 Rn */ |
| 933 |
gen_op_shll16_Rn(REG(B11_8)); |
| 934 |
return;
|
| 935 |
case 0x4009: /* shlr2 Rn */ |
| 936 |
gen_op_shlr2_Rn(REG(B11_8)); |
| 937 |
return;
|
| 938 |
case 0x4019: /* shlr8 Rn */ |
| 939 |
gen_op_shlr8_Rn(REG(B11_8)); |
| 940 |
return;
|
| 941 |
case 0x4029: /* shlr16 Rn */ |
| 942 |
gen_op_shlr16_Rn(REG(B11_8)); |
| 943 |
return;
|
| 944 |
case 0x401b: /* tas.b @Rn */ |
| 945 |
gen_op_tasb_rN(REG(B11_8)); |
| 946 |
return;
|
| 947 |
} |
| 948 |
|
| 949 |
fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n",
|
| 950 |
ctx->opcode, ctx->pc); |
| 951 |
gen_op_raise_illegal_instruction(); |
| 952 |
ctx->flags |= BRANCH_EXCEPTION; |
| 953 |
} |
| 954 |
|
| 955 |
int gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb,
|
| 956 |
int search_pc)
|
| 957 |
{
|
| 958 |
DisasContext ctx; |
| 959 |
target_ulong pc_start; |
| 960 |
static uint16_t *gen_opc_end;
|
| 961 |
uint32_t old_flags; |
| 962 |
int i;
|
| 963 |
|
| 964 |
pc_start = tb->pc; |
| 965 |
gen_opc_ptr = gen_opc_buf; |
| 966 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 967 |
gen_opparam_ptr = gen_opparam_buf; |
| 968 |
ctx.pc = pc_start; |
| 969 |
ctx.flags = env->flags; |
| 970 |
old_flags = 0;
|
| 971 |
ctx.sr = env->sr; |
| 972 |
ctx.memidx = (env->sr & SR_MD) ? 1 : 0; |
| 973 |
ctx.delayed_pc = env->delayed_pc; |
| 974 |
ctx.tb = tb; |
| 975 |
ctx.singlestep_enabled = env->singlestep_enabled; |
| 976 |
nb_gen_labels = 0;
|
| 977 |
|
| 978 |
#ifdef DEBUG_DISAS
|
| 979 |
if (loglevel & CPU_LOG_TB_CPU) {
|
| 980 |
fprintf(logfile, |
| 981 |
"------------------------------------------------\n");
|
| 982 |
cpu_dump_state(env, logfile, fprintf, 0);
|
| 983 |
} |
| 984 |
#endif
|
| 985 |
|
| 986 |
while ((old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) == 0 && |
| 987 |
(ctx.flags & (BRANCH | BRANCH_CONDITIONAL | MODE_CHANGE | |
| 988 |
BRANCH_EXCEPTION)) == 0 &&
|
| 989 |
gen_opc_ptr < gen_opc_end && ctx.sr == env->sr) {
|
| 990 |
old_flags = ctx.flags; |
| 991 |
if (env->nb_breakpoints > 0) { |
| 992 |
for (i = 0; i < env->nb_breakpoints; i++) { |
| 993 |
if (ctx.pc == env->breakpoints[i]) {
|
| 994 |
/* We have hit a breakpoint - make sure PC is up-to-date */
|
| 995 |
gen_op_movl_imm_PC(ctx.pc); |
| 996 |
gen_op_debug(); |
| 997 |
ctx.flags |= BRANCH_EXCEPTION; |
| 998 |
break;
|
| 999 |
} |
| 1000 |
} |
| 1001 |
} |
| 1002 |
#if 0
|
| 1003 |
fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc);
|
| 1004 |
fflush(stderr);
|
| 1005 |
#endif
|
| 1006 |
ctx.opcode = lduw_code(ctx.pc); |
| 1007 |
decode_opc(&ctx); |
| 1008 |
ctx.pc += 2;
|
| 1009 |
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) |
| 1010 |
break;
|
| 1011 |
if (env->singlestep_enabled)
|
| 1012 |
break;
|
| 1013 |
#ifdef SH4_SINGLE_STEP
|
| 1014 |
break;
|
| 1015 |
#endif
|
| 1016 |
} |
| 1017 |
|
| 1018 |
switch (old_flags & (DELAY_SLOT_CONDITIONAL | DELAY_SLOT)) {
|
| 1019 |
case DELAY_SLOT_CONDITIONAL:
|
| 1020 |
gen_op_clr_delay_slot_conditional(); |
| 1021 |
gen_delayed_conditional_jump(&ctx); |
| 1022 |
break;
|
| 1023 |
case DELAY_SLOT:
|
| 1024 |
gen_op_clr_delay_slot(); |
| 1025 |
gen_jump(&ctx); |
| 1026 |
break;
|
| 1027 |
case 0: |
| 1028 |
if (ctx.flags & BRANCH_EXCEPTION) {
|
| 1029 |
gen_jump_exception(&ctx); |
| 1030 |
} else if ((ctx.flags & (BRANCH | BRANCH_CONDITIONAL)) == 0) { |
| 1031 |
gen_goto_tb(&ctx, 0, ctx.pc);
|
| 1032 |
} |
| 1033 |
break;
|
| 1034 |
default:
|
| 1035 |
/* Both cannot be set at the same time */
|
| 1036 |
assert(0);
|
| 1037 |
} |
| 1038 |
|
| 1039 |
if (env->singlestep_enabled) {
|
| 1040 |
gen_op_debug(); |
| 1041 |
} |
| 1042 |
*gen_opc_ptr = INDEX_op_end; |
| 1043 |
tb->size = ctx.pc - pc_start; |
| 1044 |
|
| 1045 |
#ifdef DEBUG_DISAS
|
| 1046 |
#ifdef SH4_DEBUG_DISAS
|
| 1047 |
if (loglevel & CPU_LOG_TB_IN_ASM)
|
| 1048 |
fprintf(logfile, "\n");
|
| 1049 |
#endif
|
| 1050 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 1051 |
fprintf(logfile, "IN:\n"); /* , lookup_symbol(pc_start)); */ |
| 1052 |
target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
|
| 1053 |
fprintf(logfile, "\n");
|
| 1054 |
} |
| 1055 |
if (loglevel & CPU_LOG_TB_OP) {
|
| 1056 |
fprintf(logfile, "OP:\n");
|
| 1057 |
dump_ops(gen_opc_buf, gen_opparam_buf); |
| 1058 |
fprintf(logfile, "\n");
|
| 1059 |
} |
| 1060 |
#endif
|
| 1061 |
return 0; |
| 1062 |
} |
| 1063 |
|
| 1064 |
int gen_intermediate_code(CPUState * env, struct TranslationBlock *tb) |
| 1065 |
{
|
| 1066 |
return gen_intermediate_code_internal(env, tb, 0); |
| 1067 |
} |
| 1068 |
|
| 1069 |
int gen_intermediate_code_pc(CPUState * env, struct TranslationBlock *tb) |
| 1070 |
{
|
| 1071 |
assert(0);
|
| 1072 |
return gen_intermediate_code_internal(env, tb, 1); |
| 1073 |
} |