PPC safe220 "SyncdWW Rfe SyncsRW Rfe DpdW Wsi Rfe SyncdRW Wse" Cycle=SyncdWW Rfe SyncsRW Rfe DpdW Wsi Rfe SyncdRW Wse Relax= Safe=Wsi Wse DpdW ACSyncdRW BCSyncsRW BCSyncdWW { 0:r2=x; 1:r2=x; 1:r5=y; 2:r2=y; 2:r4=z; 3:r2=z; 3:r4=x; } P0 | P1 | P2 | P3 ; lwz r1,0(r2) | lwz r1,0(r2) | lwz r1,0(r2) | li r1,2 ; sync | xor r3,r1,r1 | sync | stw r1,0(r2) ; li r3,2 | li r4,1 | li r3,1 | sync ; stw r3,0(r2) | stwx r4,r3,r5 | stw r3,0(r4) | li r3,1 ; | li r6,2 | | stw r3,0(r4) ; | stw r6,0(r5) | | ; exists (x=2 /\ y=2 /\ z=2 /\ 0:r1=1 /\ 1:r1=2 /\ 2:r1=2)