其他转移指令(0904)

本文为《汇编语言程序设计》0904小节例程。点击链接…进课程主页。

jcxz指令

assume cs:codesg
codesg segment
start: mov ax,2000H
       mov ds, ax
       mov bx,0
    s: mov cx, [bx]
       jcxz ok
       inc bx
       inc bx 
       jmp short s
   ok: mov dx, bx
       mov ax, 4c00H
       int 21H
codesg ends
end start

loop指令

assume cs:codesg
codesg segment
start: mov cx, 6h
       mov ax,10h
    s: add ax, ax
       loop s
       mov ax, 4c00H
       int 21H
codesg ends
end start