王爽《汇编语言》实验9根据材料编程

编程:在屏幕中间分别显示绿色、绿底红色、白底蓝色的字符串‘welcome to masm!’
assume cs:code

data segment
        db 'welcome to masm!' 
data ends

code segment

start: mov ax,data
mov ds,ax

mov ax,0b800h
mov es,ax

mov si,0
mov di,10*160+80    ;第十行中间
mov cx,16
s1: mov al,ds:[si]
mov ah,00000010B    ;绿色
mov es:[di],ax
inc si
inc di
inc di
loop s1

mov si,0
mov di,11*160+80    ;第十一行中间
mov cx,16
s2: mov al,ds:[si]
mov ah,00100100B    ;绿底红色
mov es:[di],ax
inc si
inc di
inc di
loop s2

mov si,0
mov di,12*160+80    ;第十二行中间
mov cx,16
s3: mov al,ds:[si]
mov ah,01110001B    ;白底蓝色
mov es:[di],ax
inc si
inc di
inc di
loop s3


mov ax,4c00h
int 21h              ;如果要看到完整的显示请输入:“-g 4c”,即立即运行到此条指令

code ends

end start



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