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Recognize null-destination SWAPPC shader handoffs

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Credits:
BlackCAT (@psnwd):
https://github.com/KytyPS5/KytyPS5/pull/613
YuhiAida (@YuhiAida):
https://github.com/KytyPS5/KytyPS5/pull/655
This commit is contained in:
nmzik
2026-09-17 08:45:21 +04:00
parent e0ecffed70
commit 235e24d44f
2 changed files with 19 additions and 12 deletions
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src/graphics/shader/recompiler/frontend/decode/ScalarAluOps.cpp
+4
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@@ -137,6 +137,10 @@ void DecodeSop1(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
inst.family = Family::SOP1;
inst.opcode_id = opcode;
inst.opcode = Detail::LookupOpcode(SOP1_OPS, opcode);
if (opcode == 0x21u && sdst == 125u) {
// S_SWAPPC_B64 with NULL discards the return PC, so it is a plain jump.
inst.opcode = Opcode::S_SETPC_B64;
}
SetRawWords(inst, code, word_index, 1);
if (inst.opcode == Opcode::UNSUPPORTED) {