微機(jī)原理與嵌入式系統(tǒng)第4次北京聯(lián)合大學(xué)(編輯修改稿)
2025-07-26 14:45 本頁面
【文章內(nèi)容簡介】 tmsg db 39。Wang QING !39。,0dh,0ah,0 .codestart: mov ax,@data mov ds,ax mov ax,3520h int 21h mov intoff,bx mov intseg,es push ds mov dx,offset WQ mov ax,seg WQ mov ds,ax mov ax,2520h int 21h pop ds mov dx,offset intmsg int 20h mov dx,intoff mov ax,intseg mov ds,ax mov ax,2520h int 21h mov ax,4c00h int 21hWQ proc sti push ax push bx push si mov si,dxWQ1: mov al,[si] cmp al,0 jz WQ2 mov bx,0 mov ah,0eh int 10h inc si jmp WQ1WQ2: pop si pop bx pop ax iretWQ endp mov ax,4c00h int 21h end start.model small .stack .dataintmsg db 39。A 8259A Interrupt !39。,0dh,0ah,0counter db 0 .codestart: mov ax,@data mov ds,ax mov ax,3508h int 21h push es push bx cli push ds mov ax,seg new08h mov ds,ax mov dx,offset new08h mov ax,2508h int 21h pop ds
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