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add S_SUBB_U32 instruction

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This commit is contained in:
Fire Cube 2025-04-16 20:17:09 +02:00
parent ddf3df7f56
commit 0daeb33b95
2 changed files with 12 additions and 0 deletions
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11
src/shader_recompiler/frontend/translate/scalar_alu.cpp
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@ -238,6 +238,17 @@ void Translator::S_SUB_U32(const GcnInst& inst) {
ir.SetScc(ir.IGreaterThan(src1, src0, false));
}
void Translator::S_SUBB_U32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};
const IR::U32 borrow{ir.Select(ir.GetScc(), ir.Imm32(1U), ir.Imm32(0U))};
const IR::U32 result{ir.ISub(ir.ISub(src0, src1), borrow)};
SetDst(inst.dst[0], result);
const IR::U32 sum_with_borrow{ir.IAdd(src1, borrow)};
ir.SetScc(ir.ILessThan(src0, sum_with_borrow, false));
}
void Translator::S_ADD_I32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};

1
src/shader_recompiler/frontend/translate/translate.h
View file

@ -80,6 +80,7 @@ public:
// SOP2
void S_ADD_U32(const GcnInst& inst);
void S_SUB_U32(const GcnInst& inst);
void S_SUBB_U32(const GcnInst& inst);
void S_ADD_I32(const GcnInst& inst);
void S_SUB_I32(const GcnInst& inst);
void S_ADDC_U32(const GcnInst& inst);