[dynarmic] remove redundant lock prefix on spinlock

8 months ago · 0b0f045943
1 changed files with 3 additions and 4 deletions
--- a/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp
+++ b/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp
@ -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) {