PPC IRIW+poar+addrra+PA
"RfePA PodRRAR FreRA RfeAR DpAddrdRRA FreAP"
Cycle=RfeAR DpAddrdRRA FreAP RfePA PodRRAR FreRA
Prefetch=0:x=T,1:y=T,2:y=T,3:x=T
Com=Rf Fr Rf Fr
Orig=RfePA PodRRAR FreRA RfeAR DpAddrdRRA FreAP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r4=ok;
3:r2=y; 3:r5=x; 3:r7=ok;
}
P0 | P1 | P2 | P3 ;
li r1,1 | lwarx r1,r0,r2 | li r1,1 | lwarx r1,r0,r2 ;
stw r1,0(r2) | stwcx. r1,r0,r2 | lwarx %sta,r0,r2 | xor r3,r1,r1 ;
| bne Fail1 | stwcx. r1,r0,r2 | lwarx r4,r3,r5 ;
| lwarx r3,r0,r4 | bne Fail2 | stwcx. r4,r3,r5 ;
| b Exit1 | b Exit2 | bne Fail3 ;
| Fail1: | Fail2: | b Exit3 ;
| li r5,0 | li r3,0 | Fail3: ;
| stw r5,0(r6) | stw r3,0(r4) | li r6,0 ;
| Exit1: | Exit2: | stw r6,0(r7) ;
| | | Exit3: ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r3=0 /\ 3:r1=1 /\ 3:r4=0)