X86 X000-A "Fre Rfi PodRR Fre Rfi PodRR" {} P0 | P1 ; MOV %atom,$1 | MOV %atom,$1 ; XCHG [y],%atom | XCHG [x],%atom ; MOV EAX,[y] | MOV EAX,[x] ; MOV EBX,[x] | MOV EBX,[y] ; forall (0:EAX=1 /\ 1:EAX=1 /\ (0:EBX=1 /\ (1:EBX=1 \/ 1:EBX=0) \/ 0:EBX=0 /\ 1:EBX=1))