Test PPOCA

Run PPOCA in model, using ppcmem

PPC PPOCA (PPCPPOTen)
"local W can be speculated!!"
Com=Rf Fr
{
1:r7=y; 1:r8=z; 1:r9=x;
0:r7=y; 0:r8=z;
}
P0           |P1            ;
li r1,1      |lwz r1,0(r7)  ;
stw r1,0(r8) |cmpwi r1,0    ;
sync         |beq L00       ;
li r2,1      |L00:          ;
stw r2,0(r7) |li r3,1       ;
             |stw r3,0(r9)  ;
             |lwz r2,0(r9)  ;
             |xor r10,r2,r2 ;
             |lwzx r4,r10,r8;
locations [1:r1; 1:r4;]
exists (1:r1=1  /\ 1:r4=0)