PPC WRW+WR+addrra+syncaa+A
"RfeAR DpAddrdWRA WseAA SyncdWRAA FreAA"
Cycle=RfeAR DpAddrdWRA WseAA SyncdWRAA FreAA
Prefetch=0:x=T,1:y=W,2:y=F,2:x=T
Com=Rf Ws Fr
Orig=RfeAR DpAddrdWRA WseAA SyncdWRAA FreAA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r5=y; 1:r7=ok;
2:r2=y; 2:r4=x; 2:r6=ok;
}
P0 | P1 | P2 ;
li r1,1 | lwarx r1,r0,r2 | li r1,2 ;
lwarx %sta,r0,r2 | xor r3,r1,r1 | lwarx %sta,r0,r2 ;
stwcx. r1,r0,r2 | li r4,1 | stwcx. r1,r0,r2 ;
bne Fail0 | lwarx %sta,r3,r5 | bne Fail2 ;
b Exit0 | stwcx. r4,r3,r5 | sync ;
Fail0: | bne Fail1 | lwarx r3,r0,r4 ;
li r3,0 | b Exit1 | stwcx. r3,r0,r4 ;
stw r3,0(r4) | Fail1: | bne Fail2 ;
Exit0: | li r6,0 | b Exit2 ;
| stw r6,0(r7) | Fail2: ;
| Exit1: | li r5,0 ;
| | stw r5,0(r6) ;
| | Exit2: ;
exists
(ok=1 /\ y=2 /\ 1:r1=1 /\ 2:r3=0)