PPC m7s (PPCMSevenSync) "hexa version of rwc, with syncs" { 0:r5=x; 1:r5=x; 1:r6=y; 2:r5=x; 2:r6=y; 0:r1=1; 2:r1=1; 3:r2=2; 3:r6=y; } P0 |P1 |P2 |P3 ; stw r1,0(r5)|lwz r1,0(r5)|stw r1,0(r6)|stw r2,0(r6); |sync |sync | ; |lwz r2,0(r6)|lwz r3,0(r5)| ; locations [x;y;] ~exists ((1:r1=1 /\ 1:r2=0 /\ 2:r3=0) \/ (1:r1=1 /\ 1:r2=2 /\ 2:r3=0 /\ x=1 /\ y=1)) (* non seq. consistent behavior observed on doko A finer analysis of rwc on 7 * 9 * 40000 executions (2009/05/07) 3 non seq behaviors [1:r1=1; 1:r2=0; 2:r3=0; x=1; y=1;] NOT observed yet [1:r1=1; 1:r2=0; 2:r3=0; x=1; y=2;] Observed: 1 [1:r1=1; 1:r2=2; 2:r3=0; x=1;;] Observed: 4 (09/05/15) *)