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shader: preserve RDNA2 DLC coherence for flat address loads

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This commit is contained in:
Claxten
2026-10-06 03:28:30 +04:00
committed by nmzik
parent cdb64bfd4f
commit 9caec9f2c8
5 changed files with 75 additions and 14 deletions
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src/graphics/shader/recompiler/frontend/decode/MemoryOps.cpp
+2 -2
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@@ -343,7 +343,6 @@ void DecodeFlat(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
const uint32_t word0 = code[word_index];
const uint32_t word1 = code[word_index + 1u];
const uint32_t offset = word0 & 0xfffu;
const uint32_t dlc = (word0 >> 12u) & 1u;
const uint32_t lds = (word0 >> 13u) & 1u;
const uint32_t seg = (word0 >> 14u) & 0x3u;
const uint32_t opcode = (word0 >> 18u) & 0x7fu;
@@ -355,6 +354,7 @@ void DecodeFlat(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
inst.pc = pc;
inst.word_count = 2;
inst.offset = seg == 0u ? (offset & 0x7ffu) : SignExtendU32(offset, 12u);
inst.dlc = ((word0 >> 12u) & 1u) != 0;
inst.glc = ((word0 >> 16u) & 1u) != 0;
inst.slc = ((word0 >> 17u) & 1u) != 0;
inst.family = Family::FLAT;
@@ -364,7 +364,7 @@ void DecodeFlat(uint32_t pc, std::span<const uint32_t> code, uint32_t word_index
ApplyMemoryInfo(inst, info);
SetRawWords(inst, code, word_index, 2);
if (dlc != 0 || lds != 0 || inst.glc || inst.slc || seg == 3u) {
if (lds != 0 || inst.glc || inst.slc || seg == 3u) {
SetUnsupported(inst, Family::FLAT, opcode, "FLAT modifiers or segment are not implemented");
return;
}