PPC o5ls (PPCOFiveLwSyncSync) "Penta test: ST ; ST || LD ; LD" { 0:r1=1; 0:r4=x; 0:r5=y; 1:r4=x; 1:r5=y; 2:r2=2; 2:r5=y; } P0 |P1 |P2 ; stw r1,0(r4) |lwz r1,0(r5) |stw r2,0(r5) ; lwsync |sync | ; stw r1,0(r5) |lwz r2,0(r4) | ; Observed 1:r1=2; 1:r2=0; y=2;