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[dynarmic] remove redundant lock prefix on spinlock

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This commit is contained in:
lizzie 2025-07-27 18:42:39 +01:00
parent bd266bbd63
commit fa40c7ca09
Signed by untrusted user: Lizzie
GPG key ID: D9E134A23AD395CE
1 changed files with 3 additions and 4 deletions
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7
externals/dynarmic/src/dynarmic/common/spin_lock_x64.cpp vendored
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@ -16,15 +16,14 @@ namespace Dynarmic {
void EmitSpinLockLock(Xbyak::CodeGenerator& code, Xbyak::Reg64 ptr, Xbyak::Reg32 tmp) {
Xbyak::Label start, loop;
code.jmp(start);
code.jmp(start, code.T_NEAR);
code.L(loop);
code.pause();
code.L(start);
code.mov(tmp, 1);
code.lock();
code.xchg(code.dword[ptr], tmp);
/*code.lock();*/ code.xchg(code.dword[ptr], tmp);
code.test(tmp, tmp);
code.jnz(loop);
code.jnz(loop, code.T_NEAR);
}
void EmitSpinLockUnlock(Xbyak::CodeGenerator& code, Xbyak::Reg64 ptr, Xbyak::Reg32 tmp) {