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shader: add missing RDNA2 ALU opcodes

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Add missing scalar and vector opcodes with compute tests.

Original work by @Pouare514 in #176.

Co-authored-by: Pouare514 <julienaulycee@gmail.com>
This commit is contained in:
nmzik
2026-09-02 01:55:48 +04:00
parent 04b404f3c9
commit e9425e101d
10 changed files with 175 additions and 7 deletions
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src/graphics/shader/recompiler/frontend/translate/Control.cpp
+10 -3
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@@ -76,9 +76,9 @@ void Translator::SUB_U32(const Decoder::Instruction& inst, bool vector, bool rev
}
}
void Translator::SUBB_U32(const Decoder::Instruction& inst, bool vector) {
const auto lhs = ReadU32(vector ? inst.src1 : inst.src0);
const auto rhs = ReadU32(vector ? inst.src0 : inst.src1);
void Translator::SUBB_U32(const Decoder::Instruction& inst, bool vector, bool reverse) {
const auto lhs = ReadU32(reverse ? inst.src1 : inst.src0);
const auto rhs = ReadU32(reverse ? inst.src0 : inst.src1);
const auto borrow_in = vector ? ConditionBit(inst.src2)
: ConditionBit(ConditionOperand(Decoder::OperandKind::Scc));
const auto partial = ir.ISub(lhs, rhs);
@@ -94,6 +94,13 @@ void Translator::SUBB_U32(const Decoder::Instruction& inst, bool vector) {
}
}
void Translator::S_ABSDIFF_I32(const Decoder::Instruction& inst) {
const auto difference = ir.ISub(ReadU32(inst.src0), ReadU32(inst.src1));
const auto result = IR::U32(ir.Emit(IR::ValueOpcode::IAbs32, {difference}));
WriteOperand(DestinationOperand(inst), result);
ir.SetScc(ir.INotEqual(result, IR::U32(IR::Value(0u))));
}
void Translator::S_ADD_SUB_I32(const Decoder::Instruction& inst, bool subtract) {
const auto lhs = ReadU32(inst.src0);
const auto rhs = ReadU32(inst.src1);