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a32_emit_x64: GenTerminalHandlers: Remove unnecessary mov

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This commit is contained in:
MerryMage 2019-07-27 08:28:39 +01:00
parent 717bd2fbb2
commit 0a6f822d76
1 changed files with 3 additions and 4 deletions
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7
src/backend/x64/a32_emit_x64.cpp
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@ -216,7 +216,7 @@ void A32EmitX64::GenMemoryAccessors() {
}
void A32EmitX64::GenTerminalHandlers() {
// location_descriptor ends up in rbx
// PC ends up in ebp, location_descriptor ends up in rbx
const auto calculate_location_descriptor = [this] {
// This calculation has to match up with IREmitter::PushRSB
code.mov(ebx, dword[r15 + offsetof(A32JitState, upper_location_descriptor)]);
@ -251,11 +251,10 @@ void A32EmitX64::GenTerminalHandlers() {
calculate_location_descriptor();
code.L(rsb_cache_miss);
code.mov(r12, reinterpret_cast<u64>(fast_dispatch_table.data()));
code.mov(rbp, rbx);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE42)) {
code.crc32(rbp, r12);
code.crc32(ebp, r12d);
}
code.and_(rbp, fast_dispatch_table_mask);
code.and_(ebp, fast_dispatch_table_mask);
code.lea(rbp, ptr[r12 + rbp]);
code.cmp(rbx, qword[rbp + offsetof(FastDispatchEntry, location_descriptor)]);
code.jne(fast_dispatch_cache_miss);