| /* |
| * 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, see <http://www.gnu.org/licenses/>. |
| */ |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <inttypes.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; |
| uint32_t features; |
| int has_movcal; |
| } 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_ldst; |
| static TCGv cpu_fregs[32]; |
| |
| /* 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" |
| }; |
| static const char * const fregnames[32] = { |
| "FPR0_BANK0", "FPR1_BANK0", "FPR2_BANK0", "FPR3_BANK0", |
| "FPR4_BANK0", "FPR5_BANK0", "FPR6_BANK0", "FPR7_BANK0", |
| "FPR8_BANK0", "FPR9_BANK0", "FPR10_BANK0", "FPR11_BANK0", |
| "FPR12_BANK0", "FPR13_BANK0", "FPR14_BANK0", "FPR15_BANK0", |
| "FPR0_BANK1", "FPR1_BANK1", "FPR2_BANK1", "FPR3_BANK1", |
| "FPR4_BANK1", "FPR5_BANK1", "FPR6_BANK1", "FPR7_BANK1", |
| "FPR8_BANK1", "FPR9_BANK1", "FPR10_BANK1", "FPR11_BANK1", |
| "FPR12_BANK1", "FPR13_BANK1", "FPR14_BANK1", "FPR15_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_"); |
| cpu_ldst = tcg_global_mem_new_i32(TCG_AREG0, |
| offsetof(CPUState, ldst), "_ldst_"); |
| |
| for (i = 0; i < 32; i++) |
| cpu_fregs[i] = tcg_global_mem_new_i32(TCG_AREG0, |
| offsetof(CPUState, fregs[i]), |
| fregnames[i]); |
| |
| /* 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); |
| } |
| } |
| |
| static void cpu_sh4_reset(CPUSH4State * env) |
| { |
| if (qemu_loglevel_mask(CPU_LOG_RESET)) { |
| qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); |
| log_cpu_state(env, 0); |
| } |
| |
| #if defined(CONFIG_USER_ONLY) |
| env->sr = 0; |
| #else |
| env->sr = SR_MD | SR_RB | SR_BL | SR_I3 | SR_I2 | SR_I1 | SR_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; |
| uint32_t features; |
| } sh4_def_t; |
| |
| static sh4_def_t sh4_defs[] = { |
| { |
| .name = "SH7750R", |
| .id = SH_CPU_SH7750R, |
| .pvr = 0x00050000, |
| .prr = 0x00000100, |
| .cvr = 0x00110000, |
| .features = SH_FEATURE_BCR3_AND_BCR4, |
| }, { |
| .name = "SH7751R", |
| .id = SH_CPU_SH7751R, |
| .pvr = 0x04050005, |
| .prr = 0x00000113, |
| .cvr = 0x00110000, /* Neutered caches, should be 0x20480000 */ |
| .features = SH_FEATURE_BCR3_AND_BCR4, |
| }, { |
| .name = "SH7785", |
| .id = SH_CPU_SH7785, |
| .pvr = 0x10300700, |
| .prr = 0x00000200, |
| .cvr = 0x71440211, |
| .features = SH_FEATURE_SH4A, |
| }, |
| }; |
| |
| 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 < ARRAY_SIZE(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 < ARRAY_SIZE(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)); |
| env->features = def->features; |
| cpu_exec_init(env); |
| env->movcal_backup_tail = &(env->movcal_backup); |
| sh4_translate_init(); |
| env->cpu_model_str = cpu_model; |
| cpu_sh4_reset(env); |
| cpu_sh4_register(env, def); |
| tlb_flush(env, 1); |
| qemu_init_vcpu(env); |
| 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_fpr64(TCGv_i64 t, int reg) |
| { |
| tcg_gen_concat_i32_i64(t, cpu_fregs[reg + 1], cpu_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_mov_i32(cpu_fregs[reg + 1], tmp); |
| tcg_gen_shri_i64(t, t, 32); |
| tcg_gen_trunc_i64_i32(tmp, t); |
| tcg_gen_mov_i32(cpu_fregs[reg], tmp); |
| 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)) \ |
| { \ |
| tcg_gen_movi_i32(cpu_pc, ctx->pc-2); \ |
| gen_helper_raise_slot_illegal_instruction(); \ |
| ctx->bstate = BS_EXCP; \ |
| return; \ |
| } |
| |
| #define CHECK_PRIVILEGED \ |
| if (IS_USER(ctx)) { \ |
| tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
| gen_helper_raise_illegal_instruction(); \ |
| ctx->bstate = BS_EXCP; \ |
| return; \ |
| } |
| |
| #define CHECK_FPU_ENABLED \ |
| if (ctx->flags & SR_FD) { \ |
| if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \ |
| tcg_gen_movi_i32(cpu_pc, ctx->pc-2); \ |
| gen_helper_raise_slot_fpu_disable(); \ |
| } else { \ |
| tcg_gen_movi_i32(cpu_pc, ctx->pc); \ |
| gen_helper_raise_fpu_disable(); \ |
| } \ |
| ctx->bstate = BS_EXCP; \ |
| return; \ |
| } |
| |
| static void _decode_opc(DisasContext * ctx) |
| { |
| /* This code tries to make movcal emulation sufficiently |
| accurate for Linux purposes. This instruction writes |
| memory, and prior to that, always allocates a cache line. |
| It is used in two contexts: |
| - in memcpy, where data is copied in blocks, the first write |
| of to a block uses movca.l for performance. |
| - in arch/sh/mm/cache-sh4.c, movcal.l + ocbi combination is used |
| to flush the cache. Here, the data written by movcal.l is never |
| written to memory, and the data written is just bogus. |
| |
| To simulate this, we simulate movcal.l, we store the value to memory, |
| but we also remember the previous content. If we see ocbi, we check |
| if movcal.l for that address was done previously. If so, the write should |
| not have hit the memory, so we restore the previous content. |
| When we see an instruction that is neither movca.l |
| nor ocbi, the previous content is discarded. |
| |
| To optimize, we only try to flush stores when we're at the start of |
| TB, or if we already saw movca.l in this TB and did not flush stores |
| yet. */ |
| if (ctx->has_movcal) |
| { |
| int opcode = ctx->opcode & 0xf0ff; |
| if (opcode != 0x0093 /* ocbi */ |
| && opcode != 0x00c3 /* movca.l */) |
| { |
| gen_helper_discard_movcal_backup (); |
| ctx->has_movcal = 0; |
| } |
| } |
| |
| #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_mov_i32(REG(B11_8), addr); /* 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_mov_i32(REG(B11_8), addr); |
| 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_mov_i32(REG(B11_8), addr); |
| } |
| 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 high, low; |
| high = tcg_temp_new(); |
| tcg_gen_andi_i32(high, REG(B7_4), 0xffff0000); |
| low = tcg_temp_new(); |
| tcg_gen_ext16u_i32(low, REG(B7_4)); |
| tcg_gen_bswap16_i32(low, low); |
| tcg_gen_or_i32(REG(B11_8), high, low); |
| tcg_temp_free(low); |
| tcg_temp_free(high); |
| } |
| return; |
| case 0x6009: /* swap.w Rm,Rn */ |
| { |
| TCGv high, low; |
| high = tcg_temp_new(); |
| tcg_gen_shli_i32(high, REG(B7_4), 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_shli_i32(high, REG(B7_4), 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(); |
| TCGv cmp2 = tcg_temp_local_new(); |
| 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_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1); |
| /* Rm positive, shift to the left */ |
| shift = tcg_temp_new(); |
| tcg_gen_andi_i32(shift, REG(B7_4), 0x1f); |
| tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
| tcg_temp_free(shift); |
| tcg_gen_br(label4); |
| /* Rm negative, shift to the right */ |
| gen_set_label(label1); |
| shift = tcg_temp_new(); |
| 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_temp_free(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); |
| } |
| return; |
| case 0x400d: /* shld Rm,Rn */ |
| { |
| int label1 = gen_new_label(); |
| int label2 = gen_new_label(); |
| int label3 = gen_new_label(); |
| TCGv shift; |
| tcg_gen_brcondi_i32(TCG_COND_LT, REG(B7_4), 0, label1); |
| /* Rm positive, shift to the left */ |
| shift = tcg_temp_new(); |
| tcg_gen_andi_i32(shift, REG(B7_4), 0x1f); |
| tcg_gen_shl_i32(REG(B11_8), REG(B11_8), shift); |
| tcg_temp_free(shift); |
| tcg_gen_br(label3); |
| /* Rm negative, shift to the right */ |
| gen_set_label(label1); |
| shift = tcg_temp_new(); |
| 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_temp_free(shift); |
| tcg_gen_br(label3); |
| /* Rm = -32 */ |
| gen_set_label(label2); |
| tcg_gen_movi_i32(REG(B11_8), 0); |
| gen_set_label(label3); |
| } |
| 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 */ |
| CHECK_FPU_ENABLED |
| 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 { |
| tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| } |
| return; |
| case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| if (ctx->fpscr & FPSCR_SZ) { |
| TCGv addr_hi = tcg_temp_new(); |
| int fr = XREG(B7_4); |
| tcg_gen_addi_i32(addr_hi, REG(B11_8), 4); |
| tcg_gen_qemu_st32(cpu_fregs[fr ], REG(B11_8), ctx->memidx); |
| tcg_gen_qemu_st32(cpu_fregs[fr+1], addr_hi, ctx->memidx); |
| tcg_temp_free(addr_hi); |
| } else { |
| tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], REG(B11_8), ctx->memidx); |
| } |
| return; |
| case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| if (ctx->fpscr & FPSCR_SZ) { |
| TCGv addr_hi = tcg_temp_new(); |
| int fr = XREG(B11_8); |
| tcg_gen_addi_i32(addr_hi, REG(B7_4), 4); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx); |
| tcg_temp_free(addr_hi); |
| } else { |
| tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
| } |
| return; |
| case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| if (ctx->fpscr & FPSCR_SZ) { |
| TCGv addr_hi = tcg_temp_new(); |
| int fr = XREG(B11_8); |
| tcg_gen_addi_i32(addr_hi, REG(B7_4), 4); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr ], REG(B7_4), ctx->memidx); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr_hi, ctx->memidx); |
| tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8); |
| tcg_temp_free(addr_hi); |
| } else { |
| tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); |
| tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4); |
| } |
| return; |
| case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| if (ctx->fpscr & FPSCR_SZ) { |
| TCGv addr = tcg_temp_new_i32(); |
| int fr = XREG(B7_4); |
| tcg_gen_subi_i32(addr, REG(B11_8), 4); |
| tcg_gen_qemu_st32(cpu_fregs[fr+1], addr, ctx->memidx); |
| tcg_gen_subi_i32(addr, addr, 4); |
| tcg_gen_qemu_st32(cpu_fregs[fr ], addr, ctx->memidx); |
| tcg_gen_mov_i32(REG(B11_8), addr); |
| tcg_temp_free(addr); |
| } else { |
| TCGv addr; |
| addr = tcg_temp_new_i32(); |
| tcg_gen_subi_i32(addr, REG(B11_8), 4); |
| tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
| tcg_gen_mov_i32(REG(B11_8), addr); |
| tcg_temp_free(addr); |
| } |
| return; |
| case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| { |
| TCGv addr = tcg_temp_new_i32(); |
| tcg_gen_add_i32(addr, REG(B7_4), REG(0)); |
| if (ctx->fpscr & FPSCR_SZ) { |
| int fr = XREG(B11_8); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
| tcg_gen_addi_i32(addr, addr, 4); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx); |
| } else { |
| tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], addr, ctx->memidx); |
| } |
| tcg_temp_free(addr); |
| } |
| return; |
| case 0xf007: /* fmov {F,D,X}Rn,@(R0,Rn) - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| { |
| TCGv addr = tcg_temp_new(); |
| tcg_gen_add_i32(addr, REG(B11_8), REG(0)); |
| if (ctx->fpscr & FPSCR_SZ) { |
| int fr = XREG(B7_4); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr ], addr, ctx->memidx); |
| tcg_gen_addi_i32(addr, addr, 4); |
| tcg_gen_qemu_ld32u(cpu_fregs[fr+1], addr, ctx->memidx); |
| } else { |
| tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); |
| } |
| 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] */ |
| { |
| CHECK_FPU_ENABLED |
| 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 { |
| switch (ctx->opcode & 0xf00f) { |
| case 0xf000: /* fadd Rm,Rn */ |
| gen_helper_fadd_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| break; |
| case 0xf001: /* fsub Rm,Rn */ |
| gen_helper_fsub_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| break; |
| case 0xf002: /* fmul Rm,Rn */ |
| gen_helper_fmul_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| break; |
| case 0xf003: /* fdiv Rm,Rn */ |
| gen_helper_fdiv_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| break; |
| case 0xf004: /* fcmp/eq Rm,Rn */ |
| gen_helper_fcmp_eq_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| return; |
| case 0xf005: /* fcmp/gt Rm,Rn */ |
| gen_helper_fcmp_gt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); |
| return; |
| } |
| } |
| } |
| return; |
| case 0xf00e: /* fmac FR0,RM,Rn */ |
| { |
| CHECK_FPU_ENABLED |
| if (ctx->fpscr & FPSCR_PR) { |
| break; /* illegal instruction */ |
| } else { |
| gen_helper_fmac_FT(cpu_fregs[FREG(B11_8)], |
| cpu_fregs[FREG(0)], cpu_fregs[FREG(B7_4)], cpu_fregs[FREG(B11_8)]); |
| 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_gen_mov_i32(REG(B11_8), addr); |
| tcg_temp_free(addr); |
| } |
| 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_gen_mov_i32(REG(B11_8), addr); |
| tcg_temp_free(addr); |
| } |
| 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_gen_mov_i32(REG(B11_8), addr); \ |
| tcg_temp_free(addr); \ |
| } \ |
| 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, {CHECK_FPU_ENABLED}) |
| case 0x406a: /* lds Rm,FPSCR */ |
| CHECK_FPU_ENABLED |
| gen_helper_ld_fpscr(REG(B11_8)); |
| ctx->bstate = BS_STOP; |
| return; |
| case 0x4066: /* lds.l @Rm+,FPSCR */ |
| CHECK_FPU_ENABLED |
| { |
| 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 */ |
| CHECK_FPU_ENABLED |
| tcg_gen_andi_i32(REG(B11_8), cpu_fpscr, 0x003fffff); |
| return; |
| case 0x4062: /* sts FPSCR,@-Rn */ |
| CHECK_FPU_ENABLED |
| { |
| 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_gen_mov_i32(REG(B11_8), addr); |
| tcg_temp_free(addr); |
| tcg_temp_free(val); |
| } |
| return; |
| case 0x00c3: /* movca.l R0,@Rm */ |
| { |
| TCGv val = tcg_temp_new(); |
| tcg_gen_qemu_ld32u(val, REG(B11_8), ctx->memidx); |
| gen_helper_movcal (REG(B11_8), val); |
| tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx); |
| } |
| ctx->has_movcal = 1; |
| 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 0x0073: |
| /* MOVCO.L |
| LDST -> T |
| If (T == 1) R0 -> (Rn) |
| 0 -> LDST |
| */ |
| if (ctx->features & SH_FEATURE_SH4A) { |
| int label = gen_new_label(); |
| gen_clr_t(); |
| tcg_gen_or_i32(cpu_sr, cpu_sr, cpu_ldst); |
| tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ldst, 0, label); |
| tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx); |
| gen_set_label(label); |
| tcg_gen_movi_i32(cpu_ldst, 0); |
| return; |
| } else |
| break; |
| case 0x0063: |
| /* MOVLI.L @Rm,R0 |
| 1 -> LDST |
| (Rm) -> R0 |
| When interrupt/exception |
| occurred 0 -> LDST |
| */ |
| if (ctx->features & SH_FEATURE_SH4A) { |
| tcg_gen_movi_i32(cpu_ldst, 0); |
| tcg_gen_qemu_ld32s(REG(0), REG(B11_8), ctx->memidx); |
| tcg_gen_movi_i32(cpu_ldst, 1); |
| return; |
| } else |
| break; |
| case 0x0093: /* ocbi @Rn */ |
| { |
| gen_helper_ocbi (REG(B11_8)); |
| } |
| 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 0x00d3: /* prefi @Rn */ |
| if (ctx->features & SH_FEATURE_SH4A) |
| return; |
| else |
| break; |
| case 0x00e3: /* icbi @Rn */ |
| if (ctx->features & SH_FEATURE_SH4A) |
| return; |
| else |
| break; |
| case 0x00ab: /* synco */ |
| if (ctx->features & SH_FEATURE_SH4A) |
| return; |
| else |
| break; |
| 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_gen_mov_i32(addr, REG(B11_8)); |
| val = tcg_temp_local_new(); |
| 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 */ |
| CHECK_FPU_ENABLED |
| tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fpul); |
| return; |
| case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| tcg_gen_mov_i32(cpu_fpul, cpu_fregs[FREG(B11_8)]); |
| return; |
| case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */ |
| CHECK_FPU_ENABLED |
| 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 { |
| gen_helper_float_FT(cpu_fregs[FREG(B11_8)], cpu_fpul); |
| } |
| return; |
| case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ |
| CHECK_FPU_ENABLED |
| 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 { |
| gen_helper_ftrc_FT(cpu_fpul, cpu_fregs[FREG(B11_8)]); |
| } |
| return; |
| case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */ |
| CHECK_FPU_ENABLED |
| { |
| gen_helper_fneg_T(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
| } |
| return; |
| case 0xf05d: /* fabs FRn/DRn */ |
| CHECK_FPU_ENABLED |
| 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 { |
| gen_helper_fabs_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
| } |
| return; |
| case 0xf06d: /* fsqrt FRn */ |
| CHECK_FPU_ENABLED |
| 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 { |
| gen_helper_fsqrt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); |
| } |
| return; |
| case 0xf07d: /* fsrra FRn */ |
| CHECK_FPU_ENABLED |
| break; |
| case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */ |
| CHECK_FPU_ENABLED |
| if (!(ctx->fpscr & FPSCR_PR)) { |
| tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0); |
| } |
| return; |
| case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */ |
| CHECK_FPU_ENABLED |
| if (!(ctx->fpscr & FPSCR_PR)) { |
| tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0x3f800000); |
| } |
| return; |
| case 0xf0ad: /* fcnvsd FPUL,DRn */ |
| CHECK_FPU_ENABLED |
| { |
| 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 */ |
| CHECK_FPU_ENABLED |
| { |
| 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; |
| } |
| #if 0 |
| fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n", |
| ctx->opcode, ctx->pc); |
| fflush(stderr); |
| #endif |
| 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) == 0 ? 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; |
| ctx.features = env->features; |
| ctx.has_movcal = (tb->flags & TB_FLAG_PENDING_MOVCA); |
| |
| #ifdef DEBUG_DISAS |
| qemu_log_mask(CPU_LOG_TB_CPU, |
| "------------------------------------------------\n"); |
| log_cpu_state_mask(CPU_LOG_TB_CPU, env, 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(!QTAILQ_EMPTY(&env->breakpoints))) { |
| QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
| 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; |
| if (singlestep) |
| break; |
| } |
| 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 |
| qemu_log_mask(CPU_LOG_TB_IN_ASM, "\n"); |
| #endif |
| if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { |
| qemu_log("IN:\n"); /* , lookup_symbol(pc_start)); */ |
| log_target_disas(pc_start, ctx.pc - pc_start, 0); |
| qemu_log("\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]; |
| } |
