PPC safe004 "Rfe SyncdRR Fre SyncsWW Rfe DpdW Wse" Cycle=Rfe SyncdRR Fre SyncsWW Rfe DpdW Wse Relax= Safe=Fre Wse DpdW ACSyncdRR BCSyncsWW { 0:r2=y; 0:r4=x; 1:r2=x; 2:r2=x; 2:r5=y; 3:r2=y; } P0 | P1 | P2 | P3 ; lwz r1,0(r2) | li r1,1 | lwz r1,0(r2) | li r1,2 ; sync | stw r1,0(r2) | xor r3,r1,r1 | stw r1,0(r2) ; lwz r3,0(r4) | sync | li r4,1 | ; | li r3,2 | stwx r4,r3,r5 | ; | stw r3,0(r2) | | ; Observed 0:r1=1; 0:r3=0; 2:r1=1; x=2; y=1; and 0:r1=1; 0:r3=0; 2:r1=1; x=2; y=2; and 0:r1=2; 0:r3=0; 2:r1=1; x=2; y=2;