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Handle abs and clamp modifiers only for VOP3A instructions (#4467)

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Marcin Mikołajczyk 2026-05-23 23:40:58 +02:00 committed by GitHub
parent 65ab88dd11
commit 19f299714a
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GPG Key ID: B5690EEEBB952194
1 changed files with 12 additions and 8 deletions
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20
src/shader_recompiler/frontend/decode.cpp
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@ -802,11 +802,19 @@ void GcnDecodeContext::decodeInstructionVOP3(uint64_t hexInstruction) {
// update input modifier
auto& control = m_instruction.control.vop3;
for (u32 i = 0; i != 3; ++i) {
if (control.abs & (1u << i)) {
m_instruction.src[i].input_modifier.abs = true;
}
// update output modifier
auto& outputMod = m_instruction.dst[0].output_modifier;
if (!IsVop3BEncoding(m_instruction.opcode)) {
for (u32 i = 0; i != 3; ++i) {
if (control.abs & (1u << i)) {
m_instruction.src[i].input_modifier.abs = true;
}
}
outputMod.clamp = static_cast<bool>(control.clmp);
}
for (u32 i = 0; i != 3; ++i) {
if (control.neg & (1u << i)) {
m_instruction.src[i].input_modifier.neg = true;
}
@ -818,10 +826,6 @@ void GcnDecodeContext::decodeInstructionVOP3(uint64_t hexInstruction) {
m_instruction.dst[0].op_sel.op_sel = control.op_sel & (1u << 3);
// update output modifier
auto& outputMod = m_instruction.dst[0].output_modifier;
outputMod.clamp = static_cast<bool>(control.clmp);
switch (control.omod) {
case 0:
outputMod.multiplier = 0.f;