1.
2.assume cs:code, ds:data
data segment
db 12,35,96,55,67
data ends
code segment
start:
mov ax,data
mov ds,ax
mov bx,0
mov cx,5
mov ax,2200
s:
mov ah,0
mov al,ds:[bx]
mov dl,10
div dl
mov ds:[5],al
mov ds:[6],ah
mov ah,2
mov dl,ds:[5]
or dl,30h
int 21h
mov ah,2
mov dl,ds:[6]
add dl,30h
int 21h
mov ah,2
mov dl,20h
int 21h
inc bx
loop s
mov ax,4c00h
int 21h
code ends
end start
3.
assume ds:data, cs:code
data segment
db 'welcome to masm!'
db 2H,24H,71H ;字符串属性值
data ends
code segment
start: mov ax,data
mov ds,ax ;字符串及属性值所在段的段地址送入ds
mov ax,0b800H
mov es,ax ;80×25彩色字符模式显示缓冲区段地址送入es
mov bx,0720h
mov si,0
mov cx,16
s:mov ax,ds:[si]
mov ah,02h
mov word ptr es:[bx],ax
mov ah,24h
mov word ptr es:[bx+0a0h],ax
mov ah,71h
mov word ptr es:[bx+0a0h+0a0h],ax
inc si;
add bx,2
loop s
mov ax,4c00h
int 21h
code ends
end start
