A.MOVBX,AX B.MOVAX,BX C.XCHGAX,BX
A.DS:[BX+SI] B.DS:[BP+DI] C.SS:[BP] D.DS:[DI]
A.(CX)≠0同時(shí)CF=1 B.(CX)≠0同時(shí)ZF=1 C.(CX)≠0同時(shí)ZF=0 D.(CX)≠0同時(shí)CF=0