bits 32
xacquire lock add [esi],eax
xacquire xchg [eax],ebx
xrelease lock mov [eax],ecx
xrelease mov [eax],ecx
xacquire add ecx,[eax]
xrelease mov [eax],ecx
; Different opcodes!
mov [sym],eax
xrelease mov [sym],eax
xacquire mov [sym],eax
mov [sym],al
xrelease mov [sym],al
xacquire mov [sym],al
sym dd 0