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Implementing ROUND.

This commit is contained in:
Ben Vanik 2013-12-28 08:49:05 -08:00
parent 5a6184c07a
commit f6f8be9080
1 changed files with 43 additions and 1 deletions
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44
src/alloy/backend/ivm/ivm_intcode.cc
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@ -1018,6 +1018,48 @@ int Translate_CONVERT(TranslationContext& ctx, Instr* i) {
return DispatchToC(ctx, i, fn);
}
uint32_t IntCode_ROUND_F32(IntCodeState& ics, const IntCode* i) {
if (i->flags == ROUND_TO_NEAREST) {
ics.rf[i->dest_reg].f32 = round(ics.rf[i->src1_reg].f32);
} else {
ics.rf[i->dest_reg].f32 = floor(ics.rf[i->src1_reg].f32);
}
return IA_NEXT;
}
uint32_t IntCode_ROUND_F64(IntCodeState& ics, const IntCode* i) {
if (i->flags == ROUND_TO_NEAREST) {
ics.rf[i->dest_reg].f64 = round(ics.rf[i->src1_reg].f64);
} else {
ics.rf[i->dest_reg].f64 = floor(ics.rf[i->src1_reg].f64);
}
return IA_NEXT;
}
uint32_t IntCode_ROUND_V128(IntCodeState& ics, const IntCode* i) {
const vec128_t& src1 = ics.rf[i->src1_reg].v128;
vec128_t& dest = ics.rf[i->dest_reg].v128;
if (i->flags == ROUND_TO_NEAREST) {
for (size_t n = 0; n < 4; n++) {
dest.f4[n] = round(src1.f4[n]);
}
} else {
for (size_t n = 0; n < 4; n++) {
dest.f4[n] = floor(src1.f4[n]);
}
}
return IA_NEXT;
}
int Translate_ROUND(TranslationContext& ctx, Instr* i) {
static IntCodeFn fns[] = {
IntCode_INVALID_TYPE,
IntCode_INVALID_TYPE,
IntCode_INVALID_TYPE,
IntCode_INVALID_TYPE,
IntCode_ROUND_F32,
IntCode_ROUND_F64,
IntCode_ROUND_V128,
};
return DispatchToC(ctx, i, fns[i->dest->type]);
}
uint32_t IntCode_VECTOR_CONVERT_I2F(IntCodeState& ics, const IntCode* i) {
const vec128_t& src1 = ics.rf[i->src1_reg].v128;
@ -3109,7 +3151,7 @@ static const TranslateFn dispatch_table[] = {
Translate_SIGN_EXTEND,
Translate_TRUNCATE,
Translate_CONVERT,
TranslateInvalid, //Translate_ROUND,
Translate_ROUND,
Translate_VECTOR_CONVERT_I2F,
TranslateInvalid, //Translate_VECTOR_CONVERT_F2I,