实验四

1

assume cs:code
code segment
 mov ax,0b800h
 mov ds,ax
 mov bx,07b8h
 mov cx,16
 mov dx,0403h
 s:mov ds:[bx],dx
 inc bx
 inc bx
 loop s
 
 mov ax,4c00h
 int 21h
 code ends
 end

2、

assume cs:code
code segment
mov ax,0020h
mov ds,ax
mov bx,0
mov cx,64
s:mov [bx],bx
inc bx
loop s

mov ax,4c00h
int 21h

code ends
end

3

assume cs:code
code segment
mov ax,cs
mov ds,ax
mov ax,0020h
mov es,ax
mov bx,0
mov cx,17
s:mov al,[bx]
mov es:[bx],al
inc bx
loop s
mov ax ,4c00h
int 21h

code ends
end