PPC MP+syncap+ctrlrp
"SyncdWWAP RfePR DpCtrldRRP FrePA"
Cycle=RfePR DpCtrldRRP FrePA SyncdWWAP
Prefetch=1:x=T
Com=Rf Fr
Orig=SyncdWWAP RfePR DpCtrldRRP FrePA
{ ok=1;
0:r2=x; 0:r4=y; 0:r6=ok;
1:r2=y; 1:r4=x;
}
P0 | P1 ;
li r1,1 | lwarx r1,r0,r2 ;
lwarx %sta,r0,r2 | cmpw r1,r1 ;
stwcx. r1,r0,r2 | beq LC00 ;
bne Fail0 | LC00: ;
sync | lwz r3,0(r4) ;
li r3,1 | ;
stw r3,0(r4) | ;
b Exit0 | ;
Fail0: | ;
li r5,0 | ;
stw r5,0(r6) | ;
Exit0: | ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0)