PPC ISA2+eieio+data+isync "EieiodWW Rfe DpDatadW Rfe ISyncdRR Fre" Cycle=Rfe ISyncdRR Fre EieiodWW Rfe DpDatadW { 0:r2=x; 0:r4=y; 1:r2=y; 1:r4=z; 2:r2=z; 2:r4=x; } P0 | P1 | P2 ; li r1,1 | lwz r1,0(r2) | lwz r1,0(r2) ; stw r1,0(r2) | xor r3,r1,r1 | isync ; eieio | addi r3,r3,1 | lwz r3,0(r4) ; li r3,1 | stw r3,0(r4) | ; stw r3,0(r4) | | ; Observed 1:r1=1; 2:r1=1; 2:r3=0;