A.移碼 B.補碼 C.原碼 D.反碼
A.LEAAX,BX[SI] B.LEAAX,[BX][SI] C.MOVAX,[BX+SI] D.XCHGAX,[BX][SI]
A.[BX+OFFSETBLOCK] B.[AL*2] C.[BX+SI] D.[AL+1]