PPC WRC+dataap+addrrp
"RfePA DpDatadWAP RfePR DpAddrdRRP Fre"
Cycle=RfePA DpDatadWAP RfePR DpAddrdRRP Fre
Prefetch=0:x=T,2:x=T
Com=Rf Rf Fr
Orig=RfePA DpDatadWAP RfePR DpAddrdRRP Fre
{ ok=1;
0:r2=x;
1:r2=x; 1:r4=y; 1:r6=ok;
2:r2=y; 2:r5=x;
}
P0 | P1 | P2 ;
li r1,1 | lwarx r1,r0,r2 | lwarx r1,r0,r2 ;
stw r1,0(r2) | stwcx. r1,r0,r2 | xor r3,r1,r1 ;
| bne Fail1 | lwzx r4,r3,r5 ;
| xor r3,r1,r1 | ;
| addi r3,r3,1 | ;
| stw r3,0(r4) | ;
| b Exit1 | ;
| Fail1: | ;
| li r5,0 | ;
| stw r5,0(r6) | ;
| Exit1: | ;
exists
(ok=1 /\ 1:r1=1 /\ 2:r1=1 /\ 2:r4=0)