diff options
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 32 |
1 files changed, 5 insertions, 27 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 47a3062f86..762dd6dab8 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -3484,8 +3484,6 @@ static void gen_mtc0 (CPUState *env, DisasContext *ctx, TCGv t0, int reg, int se default: goto die; } - /* Stop translation as we may have switched the execution mode */ - ctx->bstate = BS_STOP; break; case 10: switch (sel) { @@ -3507,8 +3505,6 @@ static void gen_mtc0 (CPUState *env, DisasContext *ctx, TCGv t0, int reg, int se default: goto die; } - /* Stop translation as we may have switched the execution mode */ - ctx->bstate = BS_STOP; break; case 12: switch (sel) { @@ -3553,8 +3549,6 @@ static void gen_mtc0 (CPUState *env, DisasContext *ctx, TCGv t0, int reg, int se default: goto die; } - /* Stop translation as we may have switched the execution mode */ - ctx->bstate = BS_STOP; break; case 14: switch (sel) { @@ -4756,7 +4750,7 @@ static void gen_dmtc0 (CPUState *env, DisasContext *ctx, TCGv t0, int reg, int s ctx->bstate = BS_STOP; break; case 1: - /* ignored */ + /* ignored, read only */ rn = "Config1"; break; case 2: @@ -5350,21 +5344,14 @@ static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int /* Treat as NOP. */ return; } - { - TCGv t0 = tcg_temp_local_new(); - - gen_mfc0(env, ctx, t0, rd, ctx->opcode & 0x7); - gen_store_gpr(t0, rt); - tcg_temp_free(t0); - } + gen_mfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7); opn = "mfc0"; break; case OPC_MTC0: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); - save_cpu_state(ctx, 1); gen_mtc0(env, ctx, t0, rd, ctx->opcode & 0x7); tcg_temp_free(t0); } @@ -5377,22 +5364,15 @@ static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int /* Treat as NOP. */ return; } - { - TCGv t0 = tcg_temp_local_new(); - - gen_dmfc0(env, ctx, t0, rd, ctx->opcode & 0x7); - gen_store_gpr(t0, rt); - tcg_temp_free(t0); - } + gen_dmfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7); opn = "dmfc0"; break; case OPC_DMTC0: check_insn(env, ctx, ISA_MIPS3); { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); - save_cpu_state(ctx, 1); gen_dmtc0(env, ctx, t0, rd, ctx->opcode & 0x7); tcg_temp_free(t0); } @@ -5442,7 +5422,6 @@ static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int case OPC_ERET: opn = "eret"; check_insn(env, ctx, ISA_MIPS2); - save_cpu_state(ctx, 1); gen_helper_eret(); ctx->bstate = BS_EXCP; break; @@ -5453,7 +5432,6 @@ static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int MIPS_INVAL(opn); generate_exception(ctx, EXCP_RI); } else { - save_cpu_state(ctx, 1); gen_helper_deret(); ctx->bstate = BS_EXCP; } |