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[a64] Implement `OPCODE_MEMORY_BARRIER`

This commit is contained in:
Wunkolo 2024-05-06 13:13:05 -07:00
parent 8836eb2892
commit 8a1e343c3b
1 changed files with 4 additions and 0 deletions
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4
src/xenia/cpu/backend/a64/a64_seq_memory.cc
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@ -1101,7 +1101,11 @@ EMITTER_OPCODE_TABLE(OPCODE_CACHE_CONTROL, CACHE_CONTROL);
struct MEMORY_BARRIER
: Sequence<MEMORY_BARRIER, I<OPCODE_MEMORY_BARRIER, VoidOp>> {
static void Emit(A64Emitter& e, const EmitArgType& i) {
// mfence on x64 flushes all writes before any later instructions
// e.mfence();
// This is equivalent to DMB SY
e.DMB(BarrierOp::SY);
}
};
EMITTER_OPCODE_TABLE(OPCODE_MEMORY_BARRIER, MEMORY_BARRIER);