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shader: decode upper-half byte stores through shared operand selection

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Co-authored-by: fxpw <fxpw@outlook.com>
This commit is contained in:
nmzik
2026-10-14 04:20:02 +02:00
parent 6abfe3bbe4
commit 8d18be71db
5 changed files with 46 additions and 0 deletions
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src/graphics/shader/recompiler/frontend/decode/MemoryOps.cpp
+3
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@@ -42,6 +42,7 @@ constexpr MemoryOpcodeInfo MUBUF_OPCODE_LIST[] = {
{0x0eu, Opcode::BUFFER_LOAD_DWORDX4, 4, 32},
{0x0fu, Opcode::BUFFER_LOAD_DWORDX3, 3, 32},
{0x18u, Opcode::BUFFER_STORE_BYTE, 1, 8},
{0x19u, Opcode::BUFFER_STORE_BYTE_D16_HI, 1, 8},
{0x1au, Opcode::BUFFER_STORE_SHORT, 1, 16},
{0x1cu, Opcode::BUFFER_STORE_DWORD, 1, 32},
{0x1du, Opcode::BUFFER_STORE_DWORDX2, 2, 32},
@@ -312,6 +313,8 @@ void DecodeMubuf(uint32_t pc, std::span<const uint32_t> code, uint32_t word_inde
inst.opcode == Opcode::BUFFER_LOAD_SHORT_D16 ||
inst.opcode == Opcode::BUFFER_LOAD_SHORT_D16_HI) {
inst.dst.sdwa_sel = inst.opcode == Opcode::BUFFER_LOAD_SHORT_D16_HI ? 5u : 4u;
} else if (inst.opcode == Opcode::BUFFER_STORE_BYTE_D16_HI) {
inst.dst.sdwa_sel = 2u;
}
DecodeVectorGpr(vaddr, inst.src0);
DecodeScalarSource(srsrc * 4u, pc, inst.src1);
src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.cpp
+1
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@@ -646,6 +646,7 @@ std::string InstructionToString(const Instruction& inst) {
case Opcode::BUFFER_LOAD_DWORDX3:
case Opcode::BUFFER_LOAD_DWORDX4:
case Opcode::BUFFER_STORE_BYTE:
case Opcode::BUFFER_STORE_BYTE_D16_HI:
case Opcode::BUFFER_STORE_SHORT:
case Opcode::BUFFER_STORE_DWORD:
case Opcode::BUFFER_STORE_DWORDX2:
src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.h
+1
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@@ -564,6 +564,7 @@ enum class Opcode {
BUFFER_LOAD_DWORDX3,
BUFFER_LOAD_DWORDX4,
BUFFER_STORE_BYTE,
BUFFER_STORE_BYTE_D16_HI,
BUFFER_STORE_SHORT,
BUFFER_STORE_DWORD,
BUFFER_STORE_DWORDX2,
src/graphics/shader/recompiler/frontend/translate/Memory.cpp
+1
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@@ -998,6 +998,7 @@ void Translator::EmitMemory(const Decoder::Instruction& inst) {
case Decoder::Opcode::BUFFER_STORE_DWORDX3:
case Decoder::Opcode::BUFFER_STORE_DWORDX4:
case Decoder::Opcode::BUFFER_STORE_BYTE:
case Decoder::Opcode::BUFFER_STORE_BYTE_D16_HI:
case Decoder::Opcode::BUFFER_STORE_SHORT:
case Decoder::Opcode::BUFFER_STORE_FORMAT_X:
case Decoder::Opcode::BUFFER_STORE_FORMAT_XY: