Run LB+ctrl+data in model, using ppcmem

PPC LB+ctrl+data
"DpCtrldW Rfe DpDatadW Rfe"
Cycle=Rfe DpDatadW Rfe DpCtrldW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=x;
}
P0 | P1 ;
lwz r1,0(r2) | lwz r1,0(r2) ;
cmpw r1,r1 | xor r3,r1,r1 ;
beq LC00 | addi r3,r3,1 ;
LC00: | stw r3,0(r4) ;
li r3,1 | ;
stw r3,0(r4) | ;
exists
(0:r1=1 /\ 1:r1=1)