PPC MP+lwsyncpa+ctrlra
"LwSyncdWWPA RfeAR DpCtrldRRA FreAP"
Cycle=RfeAR DpCtrldRRA FreAP LwSyncdWWPA
Prefetch=1:x=T
Com=Rf Fr
Orig=LwSyncdWWPA RfeAR DpCtrldRRA FreAP
{ 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 | lwarx r1,r0,r2 ;
stw r1,0(r2) | cmpw r1,r1 ;
lwsync | beq LC00 ;
li r3,1 | LC00: ;
lwarx %sta,r0,r4 | lwarx r3,r0,r4 ;
stwcx. r3,r0,r4 | stwcx. r3,r0,r4 ;
bne Fail0 | 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)