PPC ISA2+lwsync+ctrl+addr
"LwSyncdWW Rfe DpCtrldW Rfe DpAddrdR Fre"
Cycle=Rfe DpAddrdR Fre LwSyncdWW Rfe DpCtrldW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=z;
2:r2=z; 2:r5=x;
}
P0 | P1 | P2 ;
li r1,1 | lwz r1,0(r2) | lwz r1,0(r2) ;
stw r1,0(r2) | cmpw r1,r1 | xor r3,r1,r1 ;
lwsync | beq LC00 | lwzx r4,r3,r5 ;
li r3,1 | LC00: | ;
stw r3,0(r4) | li r3,1 | ;
| stw r3,0(r4) | ;
exists
(1:r1=1 /\ 2:r1=1 /\ 2:r4=0)