TITLE B0602
   .MODEL SMALL
   .STACK 64
   .DATA
   .CODE
B0602MAIN PROC FAR
    MOV AX,@data
    MOV DS,AX
    MOV ES,AX

    MOV CX,FFFFH
    MOV CL,0
 
    MOV AX,4C00H
    INT 21H
B0602MAIN ENDP
   END B0602MAIN

masm 报错为

改为MOV CX,0FFFFH就好了

[此贴子已经被作者于2016-3-17 15:35编辑过]

    MOV CX,FFFFH
    MOV CL,0
 这两句为什么不直接合并写成   
    MOV CX,0FF00H