PPC MP+lwsyncap+ctrlpa
"LwSyncdWWAP Rfe DpCtrldRPA FreAA"
Cycle=Rfe DpCtrldRPA FreAA LwSyncdWWAP
Prefetch=1:x=T
Com=Rf Fr
Orig=LwSyncdWWAP Rfe DpCtrldRPA FreAA
{ ok=1;
0:r2=x; 0:r4=y; 0:r6=ok;
1:r2=y; 1:r4=x; 1:r6=ok;
}
P0 | P1 ;
li r1,1 | lwz r1,0(r2) ;
lwarx %sta,r0,r2 | cmpw r1,r1 ;
stwcx. r1,r0,r2 | beq LC00 ;
bne Fail0 | LC00: ;
lwsync | lwarx r3,r0,r4 ;
li r3,1 | stwcx. r3,r0,r4 ;
stw r3,0(r4) | bne Fail1 ;
b Exit0 | b Exit1 ;
Fail0: | Fail1: ;
li r5,0 | li r5,0 ;
stw r5,0(r6) | stw r5,0(r6) ;
Exit0: | Exit1: ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0)