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qemu-e2k/target-sh4/translate.c

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/*
* SH4 translation
*
* Copyright (c) 2005 Samuel Tardieu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#define DEBUG_DISAS
#define SH4_DEBUG_DISAS
//#define SH4_SINGLE_STEP
#include "cpu.h"
#include "exec-all.h"
#include "disas.h"
#include "tcg-op.h"
#include "qemu-common.h"
#include "helper.h"
#define GEN_HELPER 1
#include "helper.h"
typedef struct DisasContext {
struct TranslationBlock *tb;
target_ulong pc;
uint32_t sr;
uint32_t fpscr;
uint16_t opcode;
uint32_t flags;
int bstate;
int memidx;
uint32_t delayed_pc;
int singlestep_enabled;
} DisasContext;
#if defined(CONFIG_USER_ONLY)
#define IS_USER(ctx) 1
#else
#define IS_USER(ctx) (!(ctx->sr & SR_MD))
#endif
enum {
BS_NONE = 0, /* We go out of the TB without reaching a branch or an
* exception condition
*/
BS_STOP = 1, /* We want to stop translation for any reason */
BS_BRANCH = 2, /* We reached a branch condition */
BS_EXCP = 3, /* We reached an exception condition */
};
/* global register indexes */
static TCGv_ptr cpu_env;
static TCGv cpu_gregs[24];
static TCGv cpu_pc, cpu_sr, cpu_ssr, cpu_spc, cpu_gbr;
static TCGv cpu_vbr, cpu_sgr, cpu_dbr, cpu_mach, cpu_macl;
static TCGv cpu_pr, cpu_fpscr, cpu_fpul, cpu_flags;
/* internal register indexes */
static TCGv cpu_flags, cpu_delayed_pc;
#include "gen-icount.h"
static void sh4_translate_init(void)
{
int i;
static int done_init = 0;
static const char * const gregnames[24] = {
"R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
"R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
"R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15",
"R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
"R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
};
if (done_init)
return;
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
for (i = 0; i < 24; i++)
cpu_gregs[i] = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, gregs[i]),
gregnames[i]);
cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, pc), "PC");
cpu_sr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, sr), "SR");
cpu_ssr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, ssr), "SSR");
cpu_spc = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, spc), "SPC");
cpu_gbr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, gbr), "GBR");
cpu_vbr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, vbr), "VBR");
cpu_sgr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, sgr), "SGR");
cpu_dbr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, dbr), "DBR");
cpu_mach = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, mach), "MACH");
cpu_macl = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, macl), "MACL");
cpu_pr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, pr), "PR");
cpu_fpscr = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, fpscr), "FPSCR");
cpu_fpul = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, fpul), "FPUL");
cpu_flags = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, flags), "_flags_");
cpu_delayed_pc = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, delayed_pc),
"_delayed_pc_");
/* register helpers */
#define GEN_HELPER 2
#include "helper.h"
done_init = 1;
}
void cpu_dump_state(CPUState * env, FILE * f,
int (*cpu_fprintf) (FILE * f, const char *fmt, ...),
int flags)
{
int i;
cpu_fprintf(f, "pc=0x%08x sr=0x%08x pr=0x%08x fpscr=0x%08x\n",
env->pc, env->sr, env->pr, env->fpscr);
cpu_fprintf(f, "spc=0x%08x ssr=0x%08x gbr=0x%08x vbr=0x%08x\n",
env->spc, env->ssr, env->gbr, env->vbr);
cpu_fprintf(f, "sgr=0x%08x dbr=0x%08x delayed_pc=0x%08x fpul=0x%08x\n",
env->sgr, env->dbr, env->delayed_pc, env->fpul);
for (i = 0; i < 24; i += 4) {
cpu_fprintf(f, "r%d=0x%08x r%d=0x%08x r%d=0x%08x r%d=0x%08x\n",
i, env->gregs[i], i + 1, env->gregs[i + 1],
i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]);
}
if (env->flags & DELAY_SLOT) {
cpu_fprintf(f, "in delay slot (delayed_pc=0x%08x)\n",
env->delayed_pc);
} else if (env->flags & DELAY_SLOT_CONDITIONAL) {
cpu_fprintf(f, "in conditional delay slot (delayed_pc=0x%08x)\n",
env->delayed_pc);
}
}
void cpu_sh4_reset(CPUSH4State * env)
{
#if defined(CONFIG_USER_ONLY)
env->sr = SR_FD; /* FD - kernel does lazy fpu context switch */
#else
env->sr = 0x700000F0; /* MD, RB, BL, I3-I0 */
#endif
env->vbr = 0;
env->pc = 0xA0000000;
#if defined(CONFIG_USER_ONLY)
env->fpscr = FPSCR_PR; /* value for userspace according to the kernel */
set_float_rounding_mode(float_round_nearest_even, &env->fp_status); /* ?! */
#else
env->fpscr = 0x00040001; /* CPU reset value according to SH4 manual */
set_float_rounding_mode(float_round_to_zero, &env->fp_status);
#endif
env->mmucr = 0;
}
typedef struct {
const char *name;
int id;
uint32_t pvr;
uint32_t prr;
uint32_t cvr;
} sh4_def_t;
static sh4_def_t sh4_defs[] = {
{
.name = "SH7750R",
.id = SH_CPU_SH7750R,
.pvr = 0x00050000,
.prr = 0x00000100,
.cvr = 0x00110000,
}, {
.name = "SH7751R",
.id = SH_CPU_SH7751R,
.pvr = 0x04050005,
.prr = 0x00000113,
.cvr = 0x00110000, /* Neutered caches, should be 0x20480000 */
},
};
static const sh4_def_t *cpu_sh4_find_by_name(const char *name)
{
int i;
if (strcasecmp(name, "any") == 0)
return &sh4_defs[0];
for (i = 0; i < sizeof(sh4_defs) / sizeof(*sh4_defs); i++)
if (strcasecmp(name, sh4_defs[i].name) == 0)
return &sh4_defs[i];
return NULL;
}
void sh4_cpu_list(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
{
int i;
for (i = 0; i < sizeof(sh4_defs) / sizeof(*sh4_defs); i++)
(*cpu_fprintf)(f, "%s\n", sh4_defs[i].name);
}
static void cpu_sh4_register(CPUSH4State *env, const sh4_def_t *def)
{
env->pvr = def->pvr;
env->prr = def->prr;
env->cvr = def->cvr;
env->id = def->id;
}
CPUSH4State *cpu_sh4_init(const char *cpu_model)
{
CPUSH4State *env;
const sh4_def_t *def;
def = cpu_sh4_find_by_name(cpu_model);
if (!def)
return NULL;
env = qemu_mallocz(sizeof(CPUSH4State));
if (!env)
return NULL;
cpu_exec_init(env);
sh4_translate_init();
env->cpu_model_str = cpu_model;
cpu_sh4_reset(env);
cpu_sh4_register(env, def);
tlb_flush(env, 1);
return env;
}
static void gen_goto_tb(DisasContext * ctx, int n, target_ulong dest)
{
TranslationBlock *tb;
tb = ctx->tb;
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
!ctx->singlestep_enabled) {
/* Use a direct jump if in same page and singlestep not enabled */
tcg_gen_goto_tb(n);
tcg_gen_movi_i32(cpu_pc, dest);
tcg_gen_exit_tb((long) tb + n);
} else {
tcg_gen_movi_i32(cpu_pc, dest);
if (ctx->singlestep_enabled)
gen_helper_debug();
tcg_gen_exit_tb(0);
}
}
static void gen_jump(DisasContext * ctx)
{
if (ctx->delayed_pc == (uint32_t) - 1) {
/* Target is not statically known, it comes necessarily from a
delayed jump as immediate jump are conditinal jumps */
tcg_gen_mov_i32(cpu_pc, cpu_delayed_pc);
if (ctx->singlestep_enabled)
gen_helper_debug();
tcg_gen_exit_tb(0);
} else {
gen_goto_tb(ctx, 0, ctx->delayed_pc);
}
}
static inline void gen_branch_slot(uint32_t delayed_pc, int t)
{
TCGv sr;
int label = gen_new_label();
tcg_gen_movi_i32(cpu_delayed_pc, delayed_pc);
sr = tcg_temp_new();
tcg_gen_andi_i32(sr, cpu_sr, SR_T);
tcg_gen_brcondi_i32(TCG_COND_NE, sr, t ? SR_T : 0, label);
tcg_gen_ori_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE);
gen_set_label(label);
}
/* Immediate conditional jump (bt or bf) */
static void gen_conditional_jump(DisasContext * ctx,
target_ulong ift, target_ulong ifnott)
{
int l1;
TCGv sr;
l1 = gen_new_label();
sr = tcg_temp_new();
tcg_gen_andi_i32(sr, cpu_sr, SR_T);
tcg_gen_brcondi_i32(TCG_COND_EQ, sr, SR_T, l1);
gen_goto_tb(ctx, 0, ifnott);
gen_set_label(l1);
gen_goto_tb(ctx, 1, ift);
}
/* Delayed conditional jump (bt or bf) */
static void gen_delayed_conditional_jump(DisasContext * ctx)
{
int l1;
TCGv ds;
l1 = gen_new_label();
ds = tcg_temp_new();
tcg_gen_andi_i32(ds, cpu_flags, DELAY_SLOT_TRUE);
tcg_gen_brcondi_i32(TCG_COND_EQ, ds, DELAY_SLOT_TRUE, l1);
gen_goto_tb(ctx, 1, ctx->pc + 2);
gen_set_label(l1);
tcg_gen_andi_i32(cpu_flags, cpu_flags, ~DELAY_SLOT_TRUE);
gen_jump(ctx);
}
static inline void gen_set_t(void)
{
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T);
}
static inline void gen_clr_t(void)
{
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T);
}
static inline void gen_cmp(int cond, TCGv t0, TCGv t1)
{
int label1 = gen_new_label();
int label2 = gen_new_label();
tcg_gen_brcond_i32(cond, t1, t0, label1);
gen_clr_t();
tcg_gen_br(label2);
gen_set_label(label1);
gen_set_t();
gen_set_label(label2);
}
static inline void gen_cmp_imm(int cond, TCGv t0, int32_t imm)
{
int label1 = gen_new_label();
int label2 = gen_new_label();
tcg_gen_brcondi_i32(cond, t0, imm, label1);
gen_clr_t();
tcg_gen_br(label2);
gen_set_label(label1);
gen_set_t();
gen_set_label(label2);
}
static inline void gen_store_flags(uint32_t flags)
{
tcg_gen_andi_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE);
tcg_gen_ori_i32(cpu_flags, cpu_flags, flags);
}
static inline void gen_copy_bit_i32(TCGv t0, int p0, TCGv t1, int p1)
{
TCGv tmp = tcg_temp_new();
p0 &= 0x1f;
p1 &= 0x1f;
tcg_gen_andi_i32(tmp, t1, (1 << p1));
tcg_gen_andi_i32(t0, t0, ~(1 << p0));
if (p0 < p1)
tcg_gen_shri_i32(tmp, tmp, p1 - p0);
else if (p0 > p1)
tcg_gen_shli_i32(tmp, tmp, p0 - p1);
tcg_gen_or_i32(t0, t0, tmp);
tcg_temp_free(tmp);
}
static inline void gen_load_fpr32(TCGv_i32 t, int reg)
{
tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, fregs[reg]));
}
static inline void gen_load_fpr64(TCGv_i64 t, int reg)
{
TCGv_i32 tmp1 = tcg_temp_new_i32();
TCGv_i32 tmp2 = tcg_temp_new_i32();
tcg_gen_ld_i32(tmp1, cpu_env, offsetof(CPUState, fregs[reg]));
tcg_gen_ld_i32(tmp2, cpu_env, offsetof(CPUState, fregs[reg + 1]));
tcg_gen_concat_i32_i64(t, tmp2, tmp1);
tcg_temp_free_i32(tmp1);
tcg_temp_free_i32(tmp2);
}
static inline void gen_store_fpr32(TCGv_i32 t, int reg)
{
tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, fregs[reg]));
}
static inline void gen_store_fpr64 (TCGv_i64 t, int reg)
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_trunc_i64_i32(tmp, t);
tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, fregs[reg + 1]));
tcg_gen_shri_i64(t, t, 32);
tcg_gen_trunc_i64_i32(tmp, t);
tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, fregs[reg]));
tcg_temp_free_i32(tmp);
}
#define B3_0 (ctx->opcode & 0xf)
#define B6_4 ((ctx->opcode >> 4) & 0x7)
#define B7_4 ((ctx->opcode >> 4) & 0xf)
#define B7_0 (ctx->opcode & 0xff)
#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff))
#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \
(ctx->opcode & 0xfff))
#define B11_8 ((ctx->opcode >> 8) & 0xf)
#define B15_12 ((ctx->opcode >> 12) & 0xf)
#define REG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB) ? \
(cpu_gregs[x + 16]) : (cpu_gregs[x]))
#define ALTREG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) != (SR_MD | SR_RB) \
? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
#define FREG(x) (ctx->fpscr & FPSCR_FR ? (x) ^ 0x10 : (x))
#define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe))
#define XREG(x) (ctx->fpscr & FPSCR_FR ? XHACK(x) ^ 0x10 : XHACK(x))
#define DREG(x) FREG(x) /* Assumes lsb of (x) is always 0 */
#define CHECK_NOT_DELAY_SLOT \
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
{gen_helper_raise_slot_illegal_instruction(); ctx->bstate = BS_EXCP; \
return;}
#define CHECK_PRIVILEGED \
if (IS_USER(ctx)) { \
gen_helper_raise_illegal_instruction(); \
ctx->bstate = BS_EXCP; \
return; \
}
static void _decode_opc(DisasContext * ctx)
{
#if 0
fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode);
#endif
switch (ctx->opcode) {
case 0x0019: /* div0u */
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~(SR_M | SR_Q | SR_T));
return;
case 0x000b: /* rts */
CHECK_NOT_DELAY_SLOT
tcg_gen_mov_i32(cpu_delayed_pc, cpu_pr);
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x0028: /* clrmac */
tcg_gen_movi_i32(cpu_mach, 0);
tcg_gen_movi_i32(cpu_macl, 0);
return;
case 0x0048: /* clrs */
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_S);
return;
case 0x0008: /* clrt */
gen_clr_t();
return;
case 0x0038: /* ldtlb */
CHECK_PRIVILEGED
gen_helper_ldtlb();
return;
case 0x002b: /* rte */
CHECK_PRIVILEGED
CHECK_NOT_DELAY_SLOT
tcg_gen_mov_i32(cpu_sr, cpu_ssr);
tcg_gen_mov_i32(cpu_delayed_pc, cpu_spc);
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x0058: /* sets */
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_S);
return;
case 0x0018: /* sett */
gen_set_t();
return;
case 0xfbfd: /* frchg */
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_FR);
ctx->bstate = BS_STOP;
return;
case 0xf3fd: /* fschg */
tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_SZ);
ctx->bstate = BS_STOP;
return;
case 0x0009: /* nop */
return;
case 0x001b: /* sleep */
CHECK_PRIVILEGED
gen_helper_sleep(tcg_const_i32(ctx->pc + 2));
return;
}
switch (ctx->opcode & 0xf000) {
case 0x1000: /* mov.l Rm,@(disp,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B11_8), B3_0 * 4);
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x5000: /* mov.l @(disp,Rm),Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 4);
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xe000: /* mov #imm,Rn */
tcg_gen_movi_i32(REG(B11_8), B7_0s);
return;
case 0x9000: /* mov.w @(disp,PC),Rn */
{
TCGv addr = tcg_const_i32(ctx->pc + 4 + B7_0 * 2);
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xd000: /* mov.l @(disp,PC),Rn */
{
TCGv addr = tcg_const_i32((ctx->pc + 4 + B7_0 * 4) & ~3);
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x7000: /* add #imm,Rn */
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), B7_0s);
return;
case 0xa000: /* bra disp */
CHECK_NOT_DELAY_SLOT
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2;
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc);
ctx->flags |= DELAY_SLOT;
return;
case 0xb000: /* bsr disp */
CHECK_NOT_DELAY_SLOT
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2;
tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc);
ctx->flags |= DELAY_SLOT;
return;
}
switch (ctx->opcode & 0xf00f) {
case 0x6003: /* mov Rm,Rn */
tcg_gen_mov_i32(REG(B11_8), REG(B7_4));
return;
case 0x2000: /* mov.b Rm,@Rn */
tcg_gen_qemu_st8(REG(B7_4), REG(B11_8), ctx->memidx);
return;
case 0x2001: /* mov.w Rm,@Rn */
tcg_gen_qemu_st16(REG(B7_4), REG(B11_8), ctx->memidx);
return;
case 0x2002: /* mov.l Rm,@Rn */
tcg_gen_qemu_st32(REG(B7_4), REG(B11_8), ctx->memidx);
return;
case 0x6000: /* mov.b @Rm,Rn */
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx);
return;
case 0x6001: /* mov.w @Rm,Rn */
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx);
return;
case 0x6002: /* mov.l @Rm,Rn */
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx);
return;
case 0x2004: /* mov.b Rm,@-Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 1);
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx); /* might cause re-execution */
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1); /* modify register status */
tcg_temp_free(addr);
}
return;
case 0x2005: /* mov.w Rm,@-Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 2);
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 2);
tcg_temp_free(addr);
}
return;
case 0x2006: /* mov.l Rm,@-Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 4);
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
case 0x6004: /* mov.b @Rm+,Rn */
tcg_gen_qemu_ld8s(REG(B11_8), REG(B7_4), ctx->memidx);
if ( B11_8 != B7_4 )
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 1);
return;
case 0x6005: /* mov.w @Rm+,Rn */
tcg_gen_qemu_ld16s(REG(B11_8), REG(B7_4), ctx->memidx);
if ( B11_8 != B7_4 )
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
return;
case 0x6006: /* mov.l @Rm+,Rn */
tcg_gen_qemu_ld32s(REG(B11_8), REG(B7_4), ctx->memidx);
if ( B11_8 != B7_4 )
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
return;
case 0x0004: /* mov.b Rm,@(R0,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
tcg_gen_qemu_st8(REG(B7_4), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x0005: /* mov.w Rm,@(R0,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
tcg_gen_qemu_st16(REG(B7_4), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x0006: /* mov.l Rm,@(R0,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
tcg_gen_qemu_st32(REG(B7_4), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x000c: /* mov.b @(R0,Rm),Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
tcg_gen_qemu_ld8s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x000d: /* mov.w @(R0,Rm),Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
tcg_gen_qemu_ld16s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x000e: /* mov.l @(R0,Rm),Rn */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
tcg_gen_qemu_ld32s(REG(B11_8), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x6008: /* swap.b Rm,Rn */
{
TCGv highw, high, low;
highw = tcg_temp_new();
tcg_gen_andi_i32(highw, REG(B7_4), 0xffff0000);
high = tcg_temp_new();
tcg_gen_ext8u_i32(high, REG(B7_4));
tcg_gen_shli_i32(high, high, 8);
low = tcg_temp_new();
tcg_gen_shri_i32(low, REG(B7_4), 8);
tcg_gen_ext8u_i32(low, low);
tcg_gen_or_i32(REG(B11_8), high, low);
tcg_gen_or_i32(REG(B11_8), REG(B11_8), highw);
tcg_temp_free(low);
tcg_temp_free(high);
}
return;
case 0x6009: /* swap.w Rm,Rn */
{
TCGv high, low;
high = tcg_temp_new();
tcg_gen_ext16u_i32(high, REG(B7_4));
tcg_gen_shli_i32(high, high, 16);
low = tcg_temp_new();
tcg_gen_shri_i32(low, REG(B7_4), 16);
tcg_gen_ext16u_i32(low, low);
tcg_gen_or_i32(REG(B11_8), high, low);
tcg_temp_free(low);
tcg_temp_free(high);
}
return;
case 0x200d: /* xtrct Rm,Rn */
{
TCGv high, low;
high = tcg_temp_new();
tcg_gen_ext16u_i32(high, REG(B7_4));
tcg_gen_shli_i32(high, high, 16);
low = tcg_temp_new();
tcg_gen_shri_i32(low, REG(B11_8), 16);
tcg_gen_ext16u_i32(low, low);
tcg_gen_or_i32(REG(B11_8), high, low);
tcg_temp_free(low);
tcg_temp_free(high);
}
return;
case 0x300c: /* add Rm,Rn */
tcg_gen_add_i32(REG(B11_8), REG(B11_8), REG(B7_4));
return;
case 0x300e: /* addc Rm,Rn */
gen_helper_addc(REG(B11_8), REG(B7_4), REG(B11_8));
return;
case 0x300f: /* addv Rm,Rn */
gen_helper_addv(REG(B11_8), REG(B7_4), REG(B11_8));
return;
case 0x2009: /* and Rm,Rn */
tcg_gen_and_i32(REG(B11_8), REG(B11_8), REG(B7_4));
return;
case 0x3000: /* cmp/eq Rm,Rn */
gen_cmp(TCG_COND_EQ, REG(B7_4), REG(B11_8));
return;
case 0x3003: /* cmp/ge Rm,Rn */
gen_cmp(TCG_COND_GE, REG(B7_4), REG(B11_8));
return;
case 0x3007: /* cmp/gt Rm,Rn */
gen_cmp(TCG_COND_GT, REG(B7_4), REG(B11_8));
return;
case 0x3006: /* cmp/hi Rm,Rn */
gen_cmp(TCG_COND_GTU, REG(B7_4), REG(B11_8));
return;
case 0x3002: /* cmp/hs Rm,Rn */
gen_cmp(TCG_COND_GEU, REG(B7_4), REG(B11_8));
return;
case 0x200c: /* cmp/str Rm,Rn */
{
int label1 = gen_new_label();
int label2 = gen_new_label();
TCGv cmp1 = tcg_temp_local_new(TCG_TYPE_I32);
TCGv cmp2 = tcg_temp_local_new(TCG_TYPE_I32);
tcg_gen_xor_i32(cmp1, REG(B7_4), REG(B11_8));
tcg_gen_andi_i32(cmp2, cmp1, 0xff000000);
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
tcg_gen_andi_i32(cmp2, cmp1, 0x00ff0000);
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
tcg_gen_andi_i32(cmp2, cmp1, 0x0000ff00);
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
tcg_gen_andi_i32(cmp2, cmp1, 0x000000ff);
tcg_gen_brcondi_i32(TCG_COND_EQ, cmp2, 0, label1);
tcg_gen_andi_i32(cpu_sr, cpu_sr, ~SR_T);
tcg_gen_br(label2);
gen_set_label(label1);
tcg_gen_ori_i32(cpu_sr, cpu_sr, SR_T);
gen_set_label(label2);
tcg_temp_free(cmp2);
tcg_temp_free(cmp1);
}
return;
case 0x2007: /* div0s Rm,Rn */
{
gen_copy_bit_i32(cpu_sr, 8, REG(B11_8), 31); /* SR_Q */
gen_copy_bit_i32(cpu_sr, 9, REG(B7_4), 31); /* SR_M */
TCGv val = tcg_temp_new();
tcg_gen_xor_i32(val, REG(B7_4), REG(B11_8));
gen_copy_bit_i32(cpu_sr, 0, val, 31); /* SR_T */
tcg_temp_free(val);
}
return;
case 0x3004: /* div1 Rm,Rn */
gen_helper_div1(REG(B11_8), REG(B7_4), REG(B11_8));
return;
case 0x300d: /* dmuls.l Rm,Rn */
{
TCGv_i64 tmp1 = tcg_temp_new_i64();
TCGv_i64 tmp2 = tcg_temp_new_i64();
tcg_gen_ext_i32_i64(tmp1, REG(B7_4));
tcg_gen_ext_i32_i64(tmp2, REG(B11_8));
tcg_gen_mul_i64(tmp1, tmp1, tmp2);
tcg_gen_trunc_i64_i32(cpu_macl, tmp1);
tcg_gen_shri_i64(tmp1, tmp1, 32);
tcg_gen_trunc_i64_i32(cpu_mach, tmp1);
tcg_temp_free_i64(tmp2);
tcg_temp_free_i64(tmp1);
}
return;
case 0x3005: /* dmulu.l Rm,Rn */
{
TCGv_i64 tmp1 = tcg_temp_new_i64();
TCGv_i64 tmp2 = tcg_temp_new_i64();
tcg_gen_extu_i32_i64(tmp1, REG(B7_4));
tcg_gen_extu_i32_i64(tmp2, REG(B11_8));
tcg_gen_mul_i64(tmp1, tmp1, tmp2);
tcg_gen_trunc_i64_i32(cpu_macl, tmp1);
tcg_gen_shri_i64(tmp1, tmp1, 32);
tcg_gen_trunc_i64_i32(cpu_mach, tmp1);
tcg_temp_free_i64(tmp2);
tcg_temp_free_i64(tmp1);
}
return;
case 0x600e: /* exts.b Rm,Rn */
tcg_gen_ext8s_i32(REG(B11_8), REG(B7_4));
return;
case 0x600f: /* exts.w Rm,Rn */
tcg_gen_ext16s_i32(REG(B11_8), REG(B7_4));
return;
case 0x600c: /* extu.b Rm,Rn */
tcg_gen_ext8u_i32(REG(B11_8), REG(B7_4));
return;
case 0x600d: /* extu.w Rm,Rn */
tcg_gen_ext16u_i32(REG(B11_8), REG(B7_4));
return;
case 0x000f: /* mac.l @Rm+,@Rn+ */
{
TCGv arg0, arg1;
arg0 = tcg_temp_new();
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx);
arg1 = tcg_temp_new();
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx);
gen_helper_macl(arg0, arg1);
tcg_temp_free(arg1);
tcg_temp_free(arg0);
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
case 0x400f: /* mac.w @Rm+,@Rn+ */
{
TCGv arg0, arg1;
arg0 = tcg_temp_new();
tcg_gen_qemu_ld32s(arg0, REG(B7_4), ctx->memidx);
arg1 = tcg_temp_new();
tcg_gen_qemu_ld32s(arg1, REG(B11_8), ctx->memidx);
gen_helper_macw(arg0, arg1);
tcg_temp_free(arg1);
tcg_temp_free(arg0);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 2);
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
}
return;
case 0x0007: /* mul.l Rm,Rn */
tcg_gen_mul_i32(cpu_macl, REG(B7_4), REG(B11_8));
return;
case 0x200f: /* muls.w Rm,Rn */
{
TCGv arg0, arg1;
arg0 = tcg_temp_new();
tcg_gen_ext16s_i32(arg0, REG(B7_4));
arg1 = tcg_temp_new();
tcg_gen_ext16s_i32(arg1, REG(B11_8));
tcg_gen_mul_i32(cpu_macl, arg0, arg1);
tcg_temp_free(arg1);
tcg_temp_free(arg0);
}
return;
case 0x200e: /* mulu.w Rm,Rn */
{
TCGv arg0, arg1;
arg0 = tcg_temp_new();
tcg_gen_ext16u_i32(arg0, REG(B7_4));
arg1 = tcg_temp_new();
tcg_gen_ext16u_i32(arg1, REG(B11_8));
tcg_gen_mul_i32(cpu_macl, arg0, arg1);
tcg_temp_free(arg1);
tcg_temp_free(arg0);
}
return;
case 0x600b: /* neg Rm,Rn */
tcg_gen_neg_i32(REG(B11_8), REG(B7_4));
return;
case 0x600a: /* negc Rm,Rn */
gen_helper_negc(REG(B11_8), REG(B7_4));
return;
case 0x6007: /* not Rm,Rn */
tcg_gen_not_i32(REG(B11_8), REG(B7_4));
return;
case 0x200b: /* or Rm,Rn */
tcg_gen_or_i32(REG(B11_8), REG(B11_8), REG(B7_4));
return;
case 0x400c: /* shad Rm,Rn */
{
int label1 = gen_new_label();
int label2 = gen_new_label();
int label3 = gen_new_label();
int label4 = gen_new_label();
TCGv shift = tcg_temp_local_new(TCG_TYPE_I32);
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
/* Rm positive, shift to the left */
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift);
tcg_gen_br(label4);
/* Rm negative, shift to the right */
gen_set_label(label1);
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
tcg_gen_not_i32(shift, REG(B7_4));
tcg_gen_andi_i32(shift, shift, 0x1f);
tcg_gen_addi_i32(shift, shift, 1);
tcg_gen_sar_i32(REG(B11_8), REG(B11_8), shift);
tcg_gen_br(label4);
/* Rm = -32 */
gen_set_label(label2);
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B11_8), 0, label3);
tcg_gen_movi_i32(REG(B11_8), 0);
tcg_gen_br(label4);
gen_set_label(label3);
tcg_gen_movi_i32(REG(B11_8), 0xffffffff);
gen_set_label(label4);
tcg_temp_free(shift);
}
return;
case 0x400d: /* shld Rm,Rn */
{
int label1 = gen_new_label();
int label2 = gen_new_label();
int label3 = gen_new_label();
TCGv shift = tcg_temp_local_new(TCG_TYPE_I32);
tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1);
/* Rm positive, shift to the left */
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift);
tcg_gen_br(label3);
/* Rm negative, shift to the right */
gen_set_label(label1);
tcg_gen_andi_i32(shift, REG(B7_4), 0x1f);
tcg_gen_brcondi_i32(TCG_COND_EQ, shift, 0, label2);
tcg_gen_not_i32(shift, REG(B7_4));
tcg_gen_andi_i32(shift, shift, 0x1f);
tcg_gen_addi_i32(shift, shift, 1);
tcg_gen_shr_i32(REG(B11_8), REG(B11_8), shift);
tcg_gen_br(label3);
/* Rm = -32 */
gen_set_label(label2);
tcg_gen_movi_i32(REG(B11_8), 0);
gen_set_label(label3);
tcg_temp_free(shift);
}
return;
case 0x3008: /* sub Rm,Rn */
tcg_gen_sub_i32(REG(B11_8), REG(B11_8), REG(B7_4));
return;
case 0x300a: /* subc Rm,Rn */
gen_helper_subc(REG(B11_8), REG(B7_4), REG(B11_8));
return;
case 0x300b: /* subv Rm,Rn */
gen_helper_subv(REG(B11_8), REG(B7_4), REG(B11_8));
return;
case 0x2008: /* tst Rm,Rn */
{
TCGv val = tcg_temp_new();
tcg_gen_and_i32(val, REG(B7_4), REG(B11_8));
gen_cmp_imm(TCG_COND_EQ, val, 0);
tcg_temp_free(val);
}
return;
case 0x200a: /* xor Rm,Rn */
tcg_gen_xor_i32(REG(B11_8), REG(B11_8), REG(B7_4));
return;
case 0xf00c: /* fmov {F,D,X}Rm,{F,D,X}Rn - FPSCR: Nothing */
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, XREG(B7_4));
gen_store_fpr64(fp, XREG(B11_8));
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B7_4));
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, XREG(B7_4));
tcg_gen_qemu_st64(fp, REG(B11_8), ctx->memidx);
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B7_4));
tcg_gen_qemu_st32(fp, REG(B11_8), ctx->memidx);
tcg_temp_free_i32(fp);
}
return;
case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp, REG(B7_4), ctx->memidx);
gen_store_fpr64(fp, XREG(B11_8));
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
tcg_gen_qemu_ld32u(fp, REG(B7_4), ctx->memidx);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp, REG(B7_4), ctx->memidx);
gen_store_fpr64(fp, XREG(B11_8));
tcg_temp_free_i64(fp);
tcg_gen_addi_i32(REG(B7_4),REG(B7_4), 8);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
tcg_gen_qemu_ld32u(fp, REG(B7_4), ctx->memidx);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
}
return;
case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */
if (ctx->fpscr & FPSCR_SZ) {
TCGv addr;
TCGv_i64 fp;
addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 8);
fp = tcg_temp_new_i64();
gen_load_fpr64(fp, XREG(B7_4));
tcg_gen_qemu_st64(fp, addr, ctx->memidx);
tcg_temp_free_i64(fp);
tcg_temp_free(addr);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 8);
} else {
TCGv addr;
TCGv_i32 fp;
addr = tcg_temp_new_i32();
tcg_gen_subi_i32(addr, REG(B11_8), 4);
fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B7_4));
tcg_gen_qemu_st32(fp, addr, ctx->memidx);
tcg_temp_free_i32(fp);
tcg_temp_free(addr);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */
{
TCGv addr = tcg_temp_new_i32();
tcg_gen_add_i32(addr, REG(B7_4), REG(0));
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
tcg_gen_qemu_ld64(fp, addr, ctx->memidx);
gen_store_fpr64(fp, XREG(B11_8));
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
tcg_gen_qemu_ld32u(fp, addr, ctx->memidx);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
tcg_temp_free(addr);
}
return;
case 0xf007: /* fmov {F,D,X}Rn,@(R0,Rn) - FPSCR: Nothing */
{
TCGv addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(B11_8), REG(0));
if (ctx->fpscr & FPSCR_SZ) {
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, XREG(B7_4));
tcg_gen_qemu_st64(fp, addr, ctx->memidx);
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B7_4));
tcg_gen_qemu_st32(fp, addr, ctx->memidx);
tcg_temp_free_i32(fp);
}
tcg_temp_free(addr);
}
return;
case 0xf000: /* fadd Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
case 0xf001: /* fsub Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
case 0xf002: /* fmul Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
case 0xf003: /* fdiv Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
case 0xf004: /* fcmp/eq Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
case 0xf005: /* fcmp/gt Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
{
if (ctx->fpscr & FPSCR_PR) {
TCGv_i64 fp0, fp1;
if (ctx->opcode & 0x0110)
break; /* illegal instruction */
fp0 = tcg_temp_new_i64();
fp1 = tcg_temp_new_i64();
gen_load_fpr64(fp0, DREG(B11_8));
gen_load_fpr64(fp1, DREG(B7_4));
switch (ctx->opcode & 0xf00f) {
case 0xf000: /* fadd Rm,Rn */
gen_helper_fadd_DT(fp0, fp0, fp1);
break;
case 0xf001: /* fsub Rm,Rn */
gen_helper_fsub_DT(fp0, fp0, fp1);
break;
case 0xf002: /* fmul Rm,Rn */
gen_helper_fmul_DT(fp0, fp0, fp1);
break;
case 0xf003: /* fdiv Rm,Rn */
gen_helper_fdiv_DT(fp0, fp0, fp1);
break;
case 0xf004: /* fcmp/eq Rm,Rn */
gen_helper_fcmp_eq_DT(fp0, fp1);
return;
case 0xf005: /* fcmp/gt Rm,Rn */
gen_helper_fcmp_gt_DT(fp0, fp1);
return;
}
gen_store_fpr64(fp0, DREG(B11_8));
tcg_temp_free_i64(fp0);
tcg_temp_free_i64(fp1);
} else {
TCGv_i32 fp0, fp1;
fp0 = tcg_temp_new_i32();
fp1 = tcg_temp_new_i32();
gen_load_fpr32(fp0, FREG(B11_8));
gen_load_fpr32(fp1, FREG(B7_4));
switch (ctx->opcode & 0xf00f) {
case 0xf000: /* fadd Rm,Rn */
gen_helper_fadd_FT(fp0, fp0, fp1);
break;
case 0xf001: /* fsub Rm,Rn */
gen_helper_fsub_FT(fp0, fp0, fp1);
break;
case 0xf002: /* fmul Rm,Rn */
gen_helper_fmul_FT(fp0, fp0, fp1);
break;
case 0xf003: /* fdiv Rm,Rn */
gen_helper_fdiv_FT(fp0, fp0, fp1);
break;
case 0xf004: /* fcmp/eq Rm,Rn */
gen_helper_fcmp_eq_FT(fp0, fp1);
return;
case 0xf005: /* fcmp/gt Rm,Rn */
gen_helper_fcmp_gt_FT(fp0, fp1);
return;
}
gen_store_fpr32(fp0, FREG(B11_8));
tcg_temp_free_i32(fp0);
tcg_temp_free_i32(fp1);
}
}
return;
}
switch (ctx->opcode & 0xff00) {
case 0xc900: /* and #imm,R0 */
tcg_gen_andi_i32(REG(0), REG(0), B7_0);
return;
case 0xcd00: /* and.b #imm,@(R0,GBR) */
{
TCGv addr, val;
addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
val = tcg_temp_new();
tcg_gen_qemu_ld8u(val, addr, ctx->memidx);
tcg_gen_andi_i32(val, val, B7_0);
tcg_gen_qemu_st8(val, addr, ctx->memidx);
tcg_temp_free(val);
tcg_temp_free(addr);
}
return;
case 0x8b00: /* bf label */
CHECK_NOT_DELAY_SLOT
gen_conditional_jump(ctx, ctx->pc + 2,
ctx->pc + 4 + B7_0s * 2);
ctx->bstate = BS_BRANCH;
return;
case 0x8f00: /* bf/s label */
CHECK_NOT_DELAY_SLOT
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 0);
ctx->flags |= DELAY_SLOT_CONDITIONAL;
return;
case 0x8900: /* bt label */
CHECK_NOT_DELAY_SLOT
gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2,
ctx->pc + 2);
ctx->bstate = BS_BRANCH;
return;
case 0x8d00: /* bt/s label */
CHECK_NOT_DELAY_SLOT
gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 1);
ctx->flags |= DELAY_SLOT_CONDITIONAL;
return;
case 0x8800: /* cmp/eq #imm,R0 */
gen_cmp_imm(TCG_COND_EQ, REG(0), B7_0s);
return;
case 0xc400: /* mov.b @(disp,GBR),R0 */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0);
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc500: /* mov.w @(disp,GBR),R0 */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc600: /* mov.l @(disp,GBR),R0 */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
tcg_gen_qemu_ld32s(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc000: /* mov.b R0,@(disp,GBR) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0);
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc100: /* mov.w R0,@(disp,GBR) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc200: /* mov.l R0,@(disp,GBR) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
tcg_gen_qemu_st32(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x8000: /* mov.b R0,@(disp,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B7_4), B3_0);
tcg_gen_qemu_st8(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x8100: /* mov.w R0,@(disp,Rn) */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
tcg_gen_qemu_st16(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x8400: /* mov.b @(disp,Rn),R0 */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B7_4), B3_0);
tcg_gen_qemu_ld8s(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0x8500: /* mov.w @(disp,Rn),R0 */
{
TCGv addr = tcg_temp_new();
tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
tcg_gen_qemu_ld16s(REG(0), addr, ctx->memidx);
tcg_temp_free(addr);
}
return;
case 0xc700: /* mova @(disp,PC),R0 */
tcg_gen_movi_i32(REG(0), ((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3);
return;
case 0xcb00: /* or #imm,R0 */
tcg_gen_ori_i32(REG(0), REG(0), B7_0);
return;
case 0xcf00: /* or.b #imm,@(R0,GBR) */
{
TCGv addr, val;
addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
val = tcg_temp_new();
tcg_gen_qemu_ld8u(val, addr, ctx->memidx);
tcg_gen_ori_i32(val, val, B7_0);
tcg_gen_qemu_st8(val, addr, ctx->memidx);
tcg_temp_free(val);
tcg_temp_free(addr);
}
return;
case 0xc300: /* trapa #imm */
{
TCGv imm;
CHECK_NOT_DELAY_SLOT
tcg_gen_movi_i32(cpu_pc, ctx->pc);
imm = tcg_const_i32(B7_0);
gen_helper_trapa(imm);
tcg_temp_free(imm);
ctx->bstate = BS_BRANCH;
}
return;
case 0xc800: /* tst #imm,R0 */
{
TCGv val = tcg_temp_new();
tcg_gen_andi_i32(val, REG(0), B7_0);
gen_cmp_imm(TCG_COND_EQ, val, 0);
tcg_temp_free(val);
}
return;
case 0xcc00: /* tst.b #imm,@(R0,GBR) */
{
TCGv val = tcg_temp_new();
tcg_gen_add_i32(val, REG(0), cpu_gbr);
tcg_gen_qemu_ld8u(val, val, ctx->memidx);
tcg_gen_andi_i32(val, val, B7_0);
gen_cmp_imm(TCG_COND_EQ, val, 0);
tcg_temp_free(val);
}
return;
case 0xca00: /* xor #imm,R0 */
tcg_gen_xori_i32(REG(0), REG(0), B7_0);
return;
case 0xce00: /* xor.b #imm,@(R0,GBR) */
{
TCGv addr, val;
addr = tcg_temp_new();
tcg_gen_add_i32(addr, REG(0), cpu_gbr);
val = tcg_temp_new();
tcg_gen_qemu_ld8u(val, addr, ctx->memidx);
tcg_gen_xori_i32(val, val, B7_0);
tcg_gen_qemu_st8(val, addr, ctx->memidx);
tcg_temp_free(val);
tcg_temp_free(addr);
}
return;
}
switch (ctx->opcode & 0xf08f) {
case 0x408e: /* ldc Rm,Rn_BANK */
CHECK_PRIVILEGED
tcg_gen_mov_i32(ALTREG(B6_4), REG(B11_8));
return;
case 0x4087: /* ldc.l @Rm+,Rn_BANK */
CHECK_PRIVILEGED
tcg_gen_qemu_ld32s(ALTREG(B6_4), REG(B11_8), ctx->memidx);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
return;
case 0x0082: /* stc Rm_BANK,Rn */
CHECK_PRIVILEGED
tcg_gen_mov_i32(REG(B11_8), ALTREG(B6_4));
return;
case 0x4083: /* stc.l Rm_BANK,@-Rn */
CHECK_PRIVILEGED
{
TCGv addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 4);
tcg_gen_qemu_st32(ALTREG(B6_4), addr, ctx->memidx);
tcg_temp_free(addr);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
}
switch (ctx->opcode & 0xf0ff) {
case 0x0023: /* braf Rn */
CHECK_NOT_DELAY_SLOT
tcg_gen_addi_i32(cpu_delayed_pc, REG(B11_8), ctx->pc + 4);
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x0003: /* bsrf Rn */
CHECK_NOT_DELAY_SLOT
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
tcg_gen_add_i32(cpu_delayed_pc, REG(B11_8), cpu_pr);
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x4015: /* cmp/pl Rn */
gen_cmp_imm(TCG_COND_GT, REG(B11_8), 0);
return;
case 0x4011: /* cmp/pz Rn */
gen_cmp_imm(TCG_COND_GE, REG(B11_8), 0);
return;
case 0x4010: /* dt Rn */
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1);
gen_cmp_imm(TCG_COND_EQ, REG(B11_8), 0);
return;
case 0x402b: /* jmp @Rn */
CHECK_NOT_DELAY_SLOT
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8));
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x400b: /* jsr @Rn */
CHECK_NOT_DELAY_SLOT
tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8));
ctx->flags |= DELAY_SLOT;
ctx->delayed_pc = (uint32_t) - 1;
return;
case 0x400e: /* ldc Rm,SR */
CHECK_PRIVILEGED
tcg_gen_andi_i32(cpu_sr, REG(B11_8), 0x700083f3);
ctx->bstate = BS_STOP;
return;
case 0x4007: /* ldc.l @Rm+,SR */
CHECK_PRIVILEGED
{
TCGv val = tcg_temp_new();
tcg_gen_qemu_ld32s(val, REG(B11_8), ctx->memidx);
tcg_gen_andi_i32(cpu_sr, val, 0x700083f3);
tcg_temp_free(val);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
ctx->bstate = BS_STOP;
}
return;
case 0x0002: /* stc SR,Rn */
CHECK_PRIVILEGED
tcg_gen_mov_i32(REG(B11_8), cpu_sr);
return;
case 0x4003: /* stc SR,@-Rn */
CHECK_PRIVILEGED
{
TCGv addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 4);
tcg_gen_qemu_st32(cpu_sr, addr, ctx->memidx);
tcg_temp_free(addr);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
#define LDST(reg,ldnum,ldpnum,stnum,stpnum,prechk) \
case ldnum: \
prechk \
tcg_gen_mov_i32 (cpu_##reg, REG(B11_8)); \
return; \
case ldpnum: \
prechk \
tcg_gen_qemu_ld32s (cpu_##reg, REG(B11_8), ctx->memidx); \
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4); \
return; \
case stnum: \
prechk \
tcg_gen_mov_i32 (REG(B11_8), cpu_##reg); \
return; \
case stpnum: \
prechk \
{ \
TCGv addr = tcg_temp_new(); \
tcg_gen_subi_i32(addr, REG(B11_8), 4); \
tcg_gen_qemu_st32 (cpu_##reg, addr, ctx->memidx); \
tcg_temp_free(addr); \
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4); \
} \
return;
LDST(gbr, 0x401e, 0x4017, 0x0012, 0x4013, {})
LDST(vbr, 0x402e, 0x4027, 0x0022, 0x4023, CHECK_PRIVILEGED)
LDST(ssr, 0x403e, 0x4037, 0x0032, 0x4033, CHECK_PRIVILEGED)
LDST(spc, 0x404e, 0x4047, 0x0042, 0x4043, CHECK_PRIVILEGED)
LDST(dbr, 0x40fa, 0x40f6, 0x00fa, 0x40f2, CHECK_PRIVILEGED)
LDST(mach, 0x400a, 0x4006, 0x000a, 0x4002, {})
LDST(macl, 0x401a, 0x4016, 0x001a, 0x4012, {})
LDST(pr, 0x402a, 0x4026, 0x002a, 0x4022, {})
LDST(fpul, 0x405a, 0x4056, 0x005a, 0x4052, {})
case 0x406a: /* lds Rm,FPSCR */
gen_helper_ld_fpscr(REG(B11_8));
ctx->bstate = BS_STOP;
return;
case 0x4066: /* lds.l @Rm+,FPSCR */
{
TCGv addr = tcg_temp_new();
tcg_gen_qemu_ld32s(addr, REG(B11_8), ctx->memidx);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
gen_helper_ld_fpscr(addr);
tcg_temp_free(addr);
ctx->bstate = BS_STOP;
}
return;
case 0x006a: /* sts FPSCR,Rn */
tcg_gen_andi_i32(REG(B11_8), cpu_fpscr, 0x003fffff);
return;
case 0x4062: /* sts FPSCR,@-Rn */
{
TCGv addr, val;
val = tcg_temp_new();
tcg_gen_andi_i32(val, cpu_fpscr, 0x003fffff);
addr = tcg_temp_new();
tcg_gen_subi_i32(addr, REG(B11_8), 4);
tcg_gen_qemu_st32(val, addr, ctx->memidx);
tcg_temp_free(addr);
tcg_temp_free(val);
tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4);
}
return;
case 0x00c3: /* movca.l R0,@Rm */
tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx);
return;
case 0x40a9:
/* MOVUA.L @Rm,R0 (Rm) -> R0
Load non-boundary-aligned data */
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
return;
case 0x40e9:
/* MOVUA.L @Rm+,R0 (Rm) -> R0, Rm + 4 -> Rm
Load non-boundary-aligned data */
tcg_gen_qemu_ld32u(REG(0), REG(B11_8), ctx->memidx);
tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
return;
case 0x0029: /* movt Rn */
tcg_gen_andi_i32(REG(B11_8), cpu_sr, SR_T);
return;
case 0x0093: /* ocbi @Rn */
{
TCGv dummy = tcg_temp_new();
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx);
tcg_temp_free(dummy);
}
return;
case 0x00a3: /* ocbp @Rn */
{
TCGv dummy = tcg_temp_new();
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx);
tcg_temp_free(dummy);
}
return;
case 0x00b3: /* ocbwb @Rn */
{
TCGv dummy = tcg_temp_new();
tcg_gen_qemu_ld32s(dummy, REG(B11_8), ctx->memidx);
tcg_temp_free(dummy);
}
return;
case 0x0083: /* pref @Rn */
return;
case 0x4024: /* rotcl Rn */
{
TCGv tmp = tcg_temp_new();
tcg_gen_mov_i32(tmp, cpu_sr);
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31);
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
gen_copy_bit_i32(REG(B11_8), 0, tmp, 0);
tcg_temp_free(tmp);
}
return;
case 0x4025: /* rotcr Rn */
{
TCGv tmp = tcg_temp_new();
tcg_gen_mov_i32(tmp, cpu_sr);
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0);
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
gen_copy_bit_i32(REG(B11_8), 31, tmp, 0);
tcg_temp_free(tmp);
}
return;
case 0x4004: /* rotl Rn */
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31);
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
gen_copy_bit_i32(REG(B11_8), 0, cpu_sr, 0);
return;
case 0x4005: /* rotr Rn */
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0);
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
gen_copy_bit_i32(REG(B11_8), 31, cpu_sr, 0);
return;
case 0x4000: /* shll Rn */
case 0x4020: /* shal Rn */
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 31);
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
return;
case 0x4021: /* shar Rn */
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0);
tcg_gen_sari_i32(REG(B11_8), REG(B11_8), 1);
return;
case 0x4001: /* shlr Rn */
gen_copy_bit_i32(cpu_sr, 0, REG(B11_8), 0);
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
return;
case 0x4008: /* shll2 Rn */
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 2);
return;
case 0x4018: /* shll8 Rn */
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 8);
return;
case 0x4028: /* shll16 Rn */
tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 16);
return;
case 0x4009: /* shlr2 Rn */
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 2);
return;
case 0x4019: /* shlr8 Rn */
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 8);
return;
case 0x4029: /* shlr16 Rn */
tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 16);
return;
case 0x401b: /* tas.b @Rn */
{
TCGv addr, val;
addr = tcg_temp_local_new(TCG_TYPE_I32);
tcg_gen_mov_i32(addr, REG(B11_8));
val = tcg_temp_local_new(TCG_TYPE_I32);
tcg_gen_qemu_ld8u(val, addr, ctx->memidx);
gen_cmp_imm(TCG_COND_EQ, val, 0);
tcg_gen_ori_i32(val, val, 0x80);
tcg_gen_qemu_st8(val, addr, ctx->memidx);
tcg_temp_free(val);
tcg_temp_free(addr);
}
return;
case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */
{
TCGv fp = tcg_temp_new();
tcg_gen_mov_i32(fp, cpu_fpul);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free(fp);
}
return;
case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */
{
TCGv fp = tcg_temp_new();
gen_load_fpr32(fp, FREG(B11_8));
tcg_gen_mov_i32(cpu_fpul, fp);
tcg_temp_free(fp);
}
return;
case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */
if (ctx->fpscr & FPSCR_PR) {
TCGv_i64 fp;
if (ctx->opcode & 0x0100)
break; /* illegal instruction */
fp = tcg_temp_new_i64();
gen_helper_float_DT(fp, cpu_fpul);
gen_store_fpr64(fp, DREG(B11_8));
tcg_temp_free_i64(fp);
}
else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_helper_float_FT(fp, cpu_fpul);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
if (ctx->fpscr & FPSCR_PR) {
TCGv_i64 fp;
if (ctx->opcode & 0x0100)
break; /* illegal instruction */
fp = tcg_temp_new_i64();
gen_load_fpr64(fp, DREG(B11_8));
gen_helper_ftrc_DT(cpu_fpul, fp);
tcg_temp_free_i64(fp);
}
else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B11_8));
gen_helper_ftrc_FT(cpu_fpul, fp);
tcg_temp_free_i32(fp);
}
return;
case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */
{
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B11_8));
gen_helper_fneg_T(fp, fp);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf05d: /* fabs FRn/DRn */
if (ctx->fpscr & FPSCR_PR) {
if (ctx->opcode & 0x0100)
break; /* illegal instruction */
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, DREG(B11_8));
gen_helper_fabs_DT(fp, fp);
gen_store_fpr64(fp, DREG(B11_8));
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B11_8));
gen_helper_fabs_FT(fp, fp);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf06d: /* fsqrt FRn */
if (ctx->fpscr & FPSCR_PR) {
if (ctx->opcode & 0x0100)
break; /* illegal instruction */
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, DREG(B11_8));
gen_helper_fsqrt_DT(fp, fp);
gen_store_fpr64(fp, DREG(B11_8));
tcg_temp_free_i64(fp);
} else {
TCGv_i32 fp = tcg_temp_new_i32();
gen_load_fpr32(fp, FREG(B11_8));
gen_helper_fsqrt_FT(fp, fp);
gen_store_fpr32(fp, FREG(B11_8));
tcg_temp_free_i32(fp);
}
return;
case 0xf07d: /* fsrra FRn */
break;
case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */
if (!(ctx->fpscr & FPSCR_PR)) {
TCGv_i32 val = tcg_const_i32(0);
gen_load_fpr32(val, FREG(B11_8));
tcg_temp_free_i32(val);
return;
}
break;
case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */
if (!(ctx->fpscr & FPSCR_PR)) {
TCGv_i32 val = tcg_const_i32(0x3f800000);
gen_load_fpr32(val, FREG(B11_8));
tcg_temp_free_i32(val);
return;
}
break;
case 0xf0ad: /* fcnvsd FPUL,DRn */
{
TCGv_i64 fp = tcg_temp_new_i64();
gen_helper_fcnvsd_FT_DT(fp, cpu_fpul);
gen_store_fpr64(fp, DREG(B11_8));
tcg_temp_free_i64(fp);
}
return;
case 0xf0bd: /* fcnvds DRn,FPUL */
{
TCGv_i64 fp = tcg_temp_new_i64();
gen_load_fpr64(fp, DREG(B11_8));
gen_helper_fcnvds_DT_FT(cpu_fpul, fp);
tcg_temp_free_i64(fp);
}
return;
}
fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n",
ctx->opcode, ctx->pc);
gen_helper_raise_illegal_instruction();
ctx->bstate = BS_EXCP;
}
static void decode_opc(DisasContext * ctx)
{
uint32_t old_flags = ctx->flags;
_decode_opc(ctx);
if (old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
if (ctx->flags & DELAY_SLOT_CLEARME) {
gen_store_flags(0);
} else {
/* go out of the delay slot */
uint32_t new_flags = ctx->flags;
new_flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL);
gen_store_flags(new_flags);
}
ctx->flags = 0;
ctx->bstate = BS_BRANCH;
if (old_flags & DELAY_SLOT_CONDITIONAL) {
gen_delayed_conditional_jump(ctx);
} else if (old_flags & DELAY_SLOT) {
gen_jump(ctx);
}
}
/* go into a delay slot */
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL))
gen_store_flags(ctx->flags);
}
static inline void
gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb,
int search_pc)
{
DisasContext ctx;
target_ulong pc_start;
static uint16_t *gen_opc_end;
CPUBreakpoint *bp;
int i, ii;
int num_insns;
int max_insns;
pc_start = tb->pc;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
ctx.pc = pc_start;
ctx.flags = (uint32_t)tb->flags;
ctx.bstate = BS_NONE;
ctx.sr = env->sr;
ctx.fpscr = env->fpscr;
ctx.memidx = (env->sr & SR_MD) ? 1 : 0;
/* We don't know if the delayed pc came from a dynamic or static branch,
so assume it is a dynamic branch. */
ctx.delayed_pc = -1; /* use delayed pc from env pointer */
ctx.tb = tb;
ctx.singlestep_enabled = env->singlestep_enabled;
#ifdef DEBUG_DISAS
if (loglevel & CPU_LOG_TB_CPU) {
fprintf(logfile,
"------------------------------------------------\n");
cpu_dump_state(env, logfile, fprintf, 0);
}
#endif
ii = -1;
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
gen_icount_start();
while (ctx.bstate == BS_NONE && gen_opc_ptr < gen_opc_end) {
if (unlikely(env->breakpoints)) {
for (bp = env->breakpoints; bp != NULL; bp = bp->next) {
if (ctx.pc == bp->pc) {
/* We have hit a breakpoint - make sure PC is up-to-date */
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug();
ctx.bstate = BS_EXCP;
break;
}
}
}
if (search_pc) {
i = gen_opc_ptr - gen_opc_buf;
if (ii < i) {
ii++;
while (ii < i)
gen_opc_instr_start[ii++] = 0;
}
gen_opc_pc[ii] = ctx.pc;
gen_opc_hflags[ii] = ctx.flags;
gen_opc_instr_start[ii] = 1;
gen_opc_icount[ii] = num_insns;
}
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
gen_io_start();
#if 0
fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc);
fflush(stderr);
#endif
ctx.opcode = lduw_code(ctx.pc);
decode_opc(&ctx);
num_insns++;
ctx.pc += 2;
if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
break;
if (env->singlestep_enabled)
break;
if (num_insns >= max_insns)
break;
#ifdef SH4_SINGLE_STEP
break;
#endif
}
if (tb->cflags & CF_LAST_IO)
gen_io_end();
if (env->singlestep_enabled) {
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug();
} else {
switch (ctx.bstate) {
case BS_STOP:
/* gen_op_interrupt_restart(); */
/* fall through */
case BS_NONE:
if (ctx.flags) {
gen_store_flags(ctx.flags | DELAY_SLOT_CLEARME);
}
gen_goto_tb(&ctx, 0, ctx.pc);
break;
case BS_EXCP:
/* gen_op_interrupt_restart(); */
tcg_gen_exit_tb(0);
break;
case BS_BRANCH:
default:
break;
}
}
gen_icount_end(tb, num_insns);
*gen_opc_ptr = INDEX_op_end;
if (search_pc) {
i = gen_opc_ptr - gen_opc_buf;
ii++;
while (ii <= i)
gen_opc_instr_start[ii++] = 0;
} else {
tb->size = ctx.pc - pc_start;
tb->icount = num_insns;
}
#ifdef DEBUG_DISAS
#ifdef SH4_DEBUG_DISAS
if (loglevel & CPU_LOG_TB_IN_ASM)
fprintf(logfile, "\n");
#endif
if (loglevel & CPU_LOG_TB_IN_ASM) {
fprintf(logfile, "IN:\n"); /* , lookup_symbol(pc_start)); */
target_disas(logfile, pc_start, ctx.pc - pc_start, 0);
fprintf(logfile, "\n");
}
#endif
}
void gen_intermediate_code(CPUState * env, struct TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 0);
}
void gen_intermediate_code_pc(CPUState * env, struct TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 1);
}
void gen_pc_load(CPUState *env, TranslationBlock *tb,
unsigned long searched_pc, int pc_pos, void *puc)
{
env->pc = gen_opc_pc[pc_pos];
env->flags = gen_opc_hflags[pc_pos];
}
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