PPC RWC+addr+lwsyncpr+A
"RfeAP DpAddrdR Fre LwSyncdWRPR FreRA"
Cycle=RfeAP DpAddrdR Fre LwSyncdWRPR FreRA
Prefetch=0:x=T,1:y=T,2:x=T
Com=Rf Fr Fr
Orig=RfeAP DpAddrdR Fre LwSyncdWRPR FreRA
{ ok=1;
0:r2=x; 0:r4=ok;
1:r2=x; 1:r5=y;
2:r2=y; 2:r4=x;
}
P0 | P1 | P2 ;
li r1,1 | lwz r1,0(r2) | li r1,1 ;
lwarx %sta,r0,r2 | xor r3,r1,r1 | stw r1,0(r2) ;
stwcx. r1,r0,r2 | lwzx r4,r3,r5 | lwsync ;
bne Fail0 | | lwarx r3,r0,r4 ;
b Exit0 | | ;
Fail0: | | ;
li r3,0 | | ;
stw r3,0(r4) | | ;
Exit0: | | ;
exists
(ok=1 /\ 1:r1=1 /\ 1:r4=0 /\ 2:r3=0)