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shader: support scalar byte sign extension

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This commit is contained in:
shadowbeat070
2026-10-06 22:22:31 +02:00
committed by nmzik
parent c3a12397b0
commit 9e666e4dd2
5 changed files with 69 additions and 12 deletions
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src/graphics/shader/recompiler/frontend/translate/Scalar.cpp
+6 -2
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@@ -134,10 +134,14 @@ void Translator::EmitScalar(const Decoder::Instruction& inst) {
case O::S_ABS_I32:
return SimpleInteger(inst, IR::ValueOpcode::IAbs32, IR::Type::U32, false, false, true);
case O::S_SEXT_I32_I16:
case O::S_SEXT_I32_I8:
case O::S_SEXT_I32_I16: {
// Sign extension leaves SCC unchanged.
const auto bits = inst.opcode == O::S_SEXT_I32_I8 ? 8u : 16u;
WriteOperand(inst.dst, IR::U32(ir.Emit(IR::ValueOpcode::BitFieldSExtract,
{ReadU32(inst.src0), IR::Value(0u), IR::Value(16u)})));
{ReadU32(inst.src0), IR::Value(0u), IR::Value(bits)})));
return;
}
case O::S_MUL_I32:
case O::S_MULK_I32:
return SimpleInteger(inst, IR::ValueOpcode::IMul32, IR::Type::U32, false, false, false);