print 'welcome to masm!' in the center of the screen.

原创于 2009-09-19 15:56:00 发布 · 434 阅读

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本文介绍了一个使用MASM汇编语言编写的简单程序，该程序能够在文本模式下显示欢迎信息，并通过不同的属性设置字符及背景颜色。文章展示了如何在不同内存地址设置字符及其颜色属性，以实现多样化文本展示效果。

;by:double; date:2009-09-19; ver:0.1 assume cs:codesg,ds:datasg datasg segment db 'welcome to masm!' datasg ends codesg segment start: mov ax,datasg mov ds,ax mov ax,0b800h mov es,ax mov si,0 mov di,64 mov cx,16 s1: mov al,ds:[si] mov es:6e0h[di],al mov al,10001010b inc di mov es:6e0h[di],al inc di inc si loop s1 mov si,0 mov di,64 mov cx,16 ;print line 1, with attribute BL,HL, green character. s2: mov al,ds:[si] mov es:780h[di],al mov al,10101100b inc di mov es:780h[di],al inc di inc si loop s2 mov si,0 mov di,64 mov cx,16 ;print line 2, with attribute BL,HL,green background and red character. s3: mov al,ds:[si] mov es:820h[di],al mov al,11111001b inc di mov es:820h[di],al inc di inc si loop s3 ;print line 1, with attribute BL,HL,white background and blue character. mov ax,4c00h int 21h codesg ends end start