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主题 : : 实验10 编写子程序编译通过，结果让我失望了！！ [待解决] |
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[帖 主] [ 发表时间：2010-01-21 01:35 ] | |
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注册日期：2009-10-07 14:18 |
assume cs:code
data segment
db 'welcome to masm!',0
data ends
code segment
start : mov dh,8
mov dl,3
mov cl,2
mov ax,data
mov ds,ax
mov si,0
call show_str
mov ax,4c00h
int 21h
show_str: dec dh
dec dl
mov ax,0
mov al,dh
mov bx,0
mov bl,10
mul bl
mov bx,ax
mov ax,0b800h
add ax,bx
mov es,ax
mov ax,0
mov al,dl
add al,dl
mov bx,ax
mov di,0
ok: mov ch,cl
mov cl,[si]
push cx
mov ch,0
jcxz return
pop es:[bx+di]
add di,2
inc si
jmp short ok
return: ret
code ends
end start | | |
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[第1楼] [ 回复时间：2010-01-21 01:36 ] | |
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信誉值：0
注册日期：2009-10-07 14:18 |
发错了这个是修改过的
assume cs:code
data segment
db 'welcome to masm!',0
data ends
code segment
start : mov dh,8
mov dl,3
mov cl,2
mov ax,data
mov ds,ax
mov si,0
call show_str
mov ax,4c00h
int 21h
show_str: dec dh
dec dl
mov ax,0
mov al,dh
mov bx,0
mov bl,10
mul bl
mov bx,ax
mov ax,0b800h
add ax,bx
mov es,ax
mov ax,0
mov al,dl
add al,dl
mov bx,ax
mov di,0
mov ch,cl
ok: mov cl,[si]
push cx
mov ch,0
jcxz return
pop es:[bx+di]
add di,2
inc si
jmp short ok
return: ret
code ends
end start | | |
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