diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 75 |
1 files changed, 62 insertions, 13 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index a48a475806..05d88c4bfc 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -1580,7 +1580,7 @@ static void gen_ld (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, int rt, int base, int16_t offset) { const char *opn = "ld"; - TCGv t0, t1; + TCGv t0, t1, t2; if (rt == 0 && env->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F)) { /* Loongson CPU uses a load to zero register for prefetch. @@ -1612,21 +1612,45 @@ static void gen_ld (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, opn = "lld"; break; case OPC_LDL: - save_cpu_state(ctx, 1); t1 = tcg_temp_new(); + tcg_gen_andi_tl(t1, t0, 7); +#ifndef TARGET_WORDS_BIGENDIAN + tcg_gen_xori_tl(t1, t1, 7); +#endif + tcg_gen_shli_tl(t1, t1, 3); + tcg_gen_andi_tl(t0, t0, ~7); + tcg_gen_qemu_ld64(t0, t0, ctx->mem_idx); + tcg_gen_shl_tl(t0, t0, t1); + tcg_gen_xori_tl(t1, t1, 63); + t2 = tcg_const_tl(0x7fffffffffffffffull); + tcg_gen_shr_tl(t2, t2, t1); gen_load_gpr(t1, rt); - gen_helper_1e2i(ldl, t1, t1, t0, ctx->mem_idx); - gen_store_gpr(t1, rt); + tcg_gen_and_tl(t1, t1, t2); + tcg_temp_free(t2); + tcg_gen_or_tl(t0, t0, t1); tcg_temp_free(t1); + gen_store_gpr(t0, rt); opn = "ldl"; break; case OPC_LDR: - save_cpu_state(ctx, 1); t1 = tcg_temp_new(); + tcg_gen_andi_tl(t1, t0, 7); +#ifdef TARGET_WORDS_BIGENDIAN + tcg_gen_xori_tl(t1, t1, 7); +#endif + tcg_gen_shli_tl(t1, t1, 3); + tcg_gen_andi_tl(t0, t0, ~7); + tcg_gen_qemu_ld64(t0, t0, ctx->mem_idx); + tcg_gen_shr_tl(t0, t0, t1); + tcg_gen_xori_tl(t1, t1, 63); + t2 = tcg_const_tl(0xfffffffffffffffeull); + tcg_gen_shl_tl(t2, t2, t1); gen_load_gpr(t1, rt); - gen_helper_1e2i(ldr, t1, t1, t0, ctx->mem_idx); - gen_store_gpr(t1, rt); + tcg_gen_and_tl(t1, t1, t2); + tcg_temp_free(t2); + tcg_gen_or_tl(t0, t0, t1); tcg_temp_free(t1); + gen_store_gpr(t0, rt); opn = "ldr"; break; case OPC_LDPC: @@ -1672,21 +1696,46 @@ static void gen_ld (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, opn = "lbu"; break; case OPC_LWL: - save_cpu_state(ctx, 1); t1 = tcg_temp_new(); + tcg_gen_andi_tl(t1, t0, 3); +#ifndef TARGET_WORDS_BIGENDIAN + tcg_gen_xori_tl(t1, t1, 3); +#endif + tcg_gen_shli_tl(t1, t1, 3); + tcg_gen_andi_tl(t0, t0, ~3); + tcg_gen_qemu_ld32u(t0, t0, ctx->mem_idx); + tcg_gen_shl_tl(t0, t0, t1); + tcg_gen_xori_tl(t1, t1, 31); + t2 = tcg_const_tl(0x7fffffffull); + tcg_gen_shr_tl(t2, t2, t1); gen_load_gpr(t1, rt); - gen_helper_1e2i(lwl, t1, t1, t0, ctx->mem_idx); - gen_store_gpr(t1, rt); + tcg_gen_and_tl(t1, t1, t2); + tcg_temp_free(t2); + tcg_gen_or_tl(t0, t0, t1); tcg_temp_free(t1); + tcg_gen_ext32s_tl(t0, t0); + gen_store_gpr(t0, rt); opn = "lwl"; break; case OPC_LWR: - save_cpu_state(ctx, 1); t1 = tcg_temp_new(); + tcg_gen_andi_tl(t1, t0, 3); +#ifdef TARGET_WORDS_BIGENDIAN + tcg_gen_xori_tl(t1, t1, 3); +#endif + tcg_gen_shli_tl(t1, t1, 3); + tcg_gen_andi_tl(t0, t0, ~3); + tcg_gen_qemu_ld32u(t0, t0, ctx->mem_idx); + tcg_gen_shr_tl(t0, t0, t1); + tcg_gen_xori_tl(t1, t1, 31); + t2 = tcg_const_tl(0xfffffffeull); + tcg_gen_shl_tl(t2, t2, t1); gen_load_gpr(t1, rt); - gen_helper_1e2i(lwr, t1, t1, t0, ctx->mem_idx); - gen_store_gpr(t1, rt); + tcg_gen_and_tl(t1, t1, t2); + tcg_temp_free(t2); + tcg_gen_or_tl(t0, t0, t1); tcg_temp_free(t1); + gen_store_gpr(t0, rt); opn = "lwr"; break; case OPC_LL: |