Test RSW

Run RSW in model, using ppcmem

PPC RSW (PPCPPOOne)
"is RR to same location in ppo?"
{
1:r6=x; 1:r7=y; 1:r8=z;
0:r7=y; 0:r8=z;
}
P0           |P1            ;
li r1,1      |lwz r1,0(r7)  ;
stw r1,0(r8) |xor r9,r1,r1  ;
sync         |lwzx r3,r9,r6 ;
li r2,2      |lwz r4,0(r6)  ;
stw r2,0(r7) |xor r10,r4,r4 ;
             |lwzx r2,r10,r8;

locations [1:r1; 1:r2;]
exists (1:r1=2 /\ 1:r2=0)