diff options
Diffstat (limited to 'target-alpha/translate.c')
| -rw-r--r-- | target-alpha/translate.c | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 2afda7791d..e783e80d81 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -197,7 +197,7 @@ static TCGv dest_gpr(DisasContext *ctx, unsigned reg) } } -static TCGv __attribute__((unused)) load_fpr(DisasContext *ctx, unsigned reg) +static TCGv load_fpr(DisasContext *ctx, unsigned reg) { if (likely(reg < 31)) { return cpu_fir[reg]; @@ -2429,6 +2429,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) goto invalid_opc; } break; + case 0x15: /* VAX floating point */ /* XXX: rounding mode and trap are ignored (!) */ @@ -2509,6 +2510,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) goto invalid_opc; } break; + case 0x16: /* IEEE floating-point */ switch (fpfn) { /* fn11 & 0x3F */ @@ -2589,6 +2591,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) goto invalid_opc; } break; + case 0x17: switch (fn11) { case 0x010: @@ -2597,18 +2600,20 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) gen_fcvtlq(rb, rc); break; case 0x020: - if (likely(rc != 31)) { - if (ra == rb) { - /* FMOV */ - if (ra == 31) { - tcg_gen_movi_i64(cpu_fir[rc], 0); - } else { - tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]); - } + /* CPYS */ + if (rc == 31) { + /* Special case CPYS as FNOP. */ + } else if (ra == rb) { + vc = dest_fpr(ctx, rc); + /* Special case CPYS as FMOV. */ + if (ra == 31) { + tcg_gen_movi_i64(vc, 0); } else { - /* CPYS */ - gen_fcpys(ra, rb, rc); + va = load_fpr(ctx, ra); + tcg_gen_mov_i64(vc, va); } + } else { + gen_fcpys(ra, rb, rc); } break; case 0x021: @@ -2621,19 +2626,13 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) break; case 0x024: /* MT_FPCR */ - if (likely(ra != 31)) { - gen_helper_store_fpcr(cpu_env, cpu_fir[ra]); - } else { - TCGv tmp = tcg_const_i64(0); - gen_helper_store_fpcr(cpu_env, tmp); - tcg_temp_free(tmp); - } + va = load_fpr(ctx, ra); + gen_helper_store_fpcr(cpu_env, va); break; case 0x025: /* MF_FPCR */ - if (likely(ra != 31)) { - gen_helper_load_fpcr(cpu_fir[ra], cpu_env); - } + va = dest_fpr(ctx, ra); + gen_helper_load_fpcr(va, cpu_env); break; case 0x02A: /* FCMOVEQ */ |