A.001BH B.0119H C.0019H D.011BH
A.IP←(EA)CS←(EA+2) B.IP←BX) CS←(DI) C.IP<=(BX)DS←(DI) D.IP←(BX)+(DI)
A.mov ax,data B.mov ds,data C.mov ax,data mov ds,ax D.mov ax,ds mov cs,ds