Test CoWW2

PPC CoWW2
"PPC basic reject,twice (ws + po)"

{0:r1=1; 0:r2=2; 0:r5=x; 1:r1=3; 1:r2=4; 1:r5=x;}

 P0           | P1           ;
 stw r1,0(r5) | stw r1,0(r5) ;
 lwz r3,0(r5) | lwz r3,0(r5) ;
 stw r2,0(r5) | stw r2,0(r5) ;

Observed
    0:r3=4; 1:r3=1; x=2;
and 0:r3=3; 1:r3=2; x=4;