Test ISA2+sync+data+addr

Run ISA2+sync+data+addr in model, using ppcmem

PPC ISA2+sync+data+addr
"SyncdWW Rfe DpDatadW Rfe DpAddrdR Fre"
Cycle=Rfe DpAddrdR Fre SyncdWW Rfe DpDatadW
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r4=z;
2:r2=z; 2:r5=x;
}
 P0           | P1           | P2            ;
 li r1,1      | lwz r1,0(r2) | lwz r1,0(r2)  ;
 stw r1,0(r2) | xor r3,r1,r1 | xor r3,r1,r1  ;
 sync         | addi r3,r3,1 | lwzx r4,r3,r5 ;
 li r3,1      | stw r3,0(r4) |               ;
 stw r3,0(r4) |              |               ;
~exists
(1:r1=1 /\ 2:r1=1 /\ 2:r4=0)