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Implement S_SUB_I32 and flags for S_SUB_U32

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This commit is contained in:
offtkp 2024-09-02 04:47:11 +03:00
parent 8eb6b57024
commit b331f24164
2 changed files with 16 additions and 3 deletions
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18
src/shader_recompiler/frontend/translate/scalar_alu.cpp
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@ -70,8 +70,9 @@ void Translator::EmitScalarAlu(const GcnInst& inst) {
case Opcode::S_ADDC_U32:
return S_ADDC_U32(inst);
case Opcode::S_SUB_U32:
case Opcode::S_SUB_I32:
return S_SUB_U32(inst);
case Opcode::S_SUB_I32:
return S_SUB_I32(inst);
case Opcode::S_MIN_U32:
return S_MIN_U32(inst);
case Opcode::S_MAX_U32:
@ -519,8 +520,19 @@ void Translator::S_SUB_U32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};
SetDst(inst.dst[0], ir.ISub(src0, src1));
// TODO: Carry out
ir.SetScc(ir.Imm1(false));
ir.SetScc(ir.IGreaterThan(src1, src0, false));
}
void Translator::S_SUB_I32(const GcnInst& inst) {
const IR::U32 src0{GetSrc(inst.src[0])};
const IR::U32 src1{GetSrc(inst.src[1])};
const IR::U32 result = ir.ISub(src0, src1);
SetDst(inst.dst[0], result);
const IR::U32 sign_mask = ir.Imm32(1 << 31);
const IR::U32 sign0 = ir.BitwiseAnd(src0, sign_mask);
const IR::U32 sign1 = ir.BitwiseAnd(src1, sign_mask);
const IR::U32 signr = ir.BitwiseAnd(result, sign_mask);
ir.SetScc(ir.LogicalAnd(ir.INotEqual(sign0, sign1), ir.INotEqual(sign0, signr)));
}
void Translator::S_GETPC_B64(u32 pc, const GcnInst& inst) {

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

@ -95,6 +95,7 @@ public:
void S_NOT_B64(const GcnInst& inst);
void S_BREV_B32(const GcnInst& inst);
void S_ADD_U32(const GcnInst& inst);
void S_SUB_I32(const GcnInst& inst);
void S_SUB_U32(const GcnInst& inst);
void S_GETPC_B64(u32 pc, const GcnInst& inst);
void S_ADDC_U32(const GcnInst& inst);