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simx64 bug fix

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This commit is contained in:
Blaise Tine
2022-02-05 17:13:16 -05:00
parent 2fd93e1d89
commit d297351211
1 changed files with 10 additions and 1 deletions
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11
sim/simx/execute.cpp
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@@ -83,6 +83,15 @@ static bool checkBoxedArgs(FWord* out, FWord a, FWord b, uint32_t* fflags) {
return false; return false;
} }
static bool checkBoxedArgs(FWord* out, FWord a, uint32_t* fflags) {
bool xa = is_nan_boxed(a);
if (xa)
return true;
*out = nan_box(0x7fc00000);
*fflags = 0;
return false;
}
static bool checkBoxedCmpArgs(Word* out, FWord a, FWord b, uint32_t* fflags) { static bool checkBoxedCmpArgs(Word* out, FWord a, FWord b, uint32_t* fflags) {
bool xa = is_nan_boxed(a); bool xa = is_nan_boxed(a);
bool xb = is_nan_boxed(b); bool xb = is_nan_boxed(b);
@@ -944,7 +953,7 @@ void Warp::execute(const Instr &instr, pipeline_trace_t *trace) {
break; break;
} }
case 0x2c: { // RV32F: FSQRT.S case 0x2c: { // RV32F: FSQRT.S
if (checkBoxedArgs(&rddata[t].f, rsdata[t][0].f, rsdata[t][1].f, &fflags)) { if (checkBoxedArgs(&rddata[t].f, rsdata[t][0].f, &fflags)) {
rddata[t].f = nan_box(rv_fsqrt_s(rsdata[t][0].f, frm, &fflags)); rddata[t].f = nan_box(rv_fsqrt_s(rsdata[t][0].f, frm, &fflags));
} }
trace->fpu.type = FpuType::FSQRT; trace->fpu.type = FpuType::FSQRT;