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- assume cs:code
- data segment
- db 'welcome to masm!',0
- data ends
- code segment
- start:mov dh,10;行号
- mov dl,10;列号
- mov cl,6;颜色
- mov ax,data
- mov ds,ax
- mov si,0
- int 7ch
- mov ax,4c00h
- int 21h
- code ends
- end start
复制代码- assume cs:code
- code segment
- start:mov ax,cs
- mov ds,ax
- mov si,offset s
- mov ax,0
- mov es,ax
- mov di,200h
- mov cx,offset ok-offset s
- cld
- rep movsb
- mov ax,0
- mov es,ax
- mov word ptr es:[7ch*4],200h
- mov word ptr es:[7ch*4+2],0
- mov ax,4c00h
- int 21h
- s:push ax
- mov ax,0b800h
- mov es,ax
- mov ax,160
- dec dh
- mul dh
- mov di,ax;第(bh)行
- mov ax,2
- dec dl
- mul dl
- mov bx,ax;第(dl)列
- mov ah,cl;颜色
- mov si,0
- j: cmp byte ptr [si],0
- je ok
- mov al,[si]
- mov word ptr es:[bx+di],ax
- add di,2
- inc si
- jmp j
- pop ax
- iret;相当于pop ip
- ;pop cs
- ;popf
- mov ax,4c00h
- int 21h
- ok:nop
- code ends
- end start
复制代码
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