PPC WRC+ctrlpa+addrra
"Rfe DpCtrldWPA RfeAR DpAddrdRRA FreAP"
Cycle=RfeAR DpAddrdRRA FreAP Rfe DpCtrldWPA
Prefetch=0:x=T,2:x=T
Com=Rf Rf Fr
Orig=Rfe DpCtrldWPA RfeAR DpAddrdRRA FreAP
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r5=x; 2:r7=ok;
}
P0 | P1 | P2 ;
li r1,1 | lwz r1,0(r2) | lwarx r1,r0,r2 ;
stw r1,0(r2) | cmpw r1,r1 | xor r3,r1,r1 ;
| beq LC00 | lwarx r4,r3,r5 ;
| LC00: | stwcx. r4,r3,r5 ;
| li r3,1 | bne Fail2 ;
| lwarx %sta,r0,r4 | b Exit2 ;
| stwcx. r3,r0,r4 | Fail2: ;
| bne Fail1 | li r6,0 ;
| b Exit1 | stw r6,0(r7) ;
| Fail1: | Exit2: ;
| li r5,0 | ;
| stw r5,0(r6) | ;
| Exit1: | ;
exists
(ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r4=0)