PPC LB+addrs
"DpAddrdW Rfe DpAddrdW Rfe"
Cycle=Rfe DpAddrdW Rfe DpAddrdW
{
0:r2=x; 0:r5=y;
1:r2=y; 1:r5=x; 1:r6=z; 1:r7=1;
}
 P0            | P1            ;
 lwz r1,0(r2)  | lwz r1,0(r2)  ;
 xor r3,r1,r1  | xor r3,r1,r1  ;
 li r4,1       | li r4,1       ;
 stwx r4,r3,r5 | stwx r4,r3,r6 ;
               | stw r7,0(r5)  ;
exists
(0:r1=1 /\ 1:r1=1)