如何在循环组件中打印 86420

Question

How to print 86420 use a loop assembly

I could print 02468

.model small
.org 100 h
.data 
.code
main proc 
mov dl,8
mov ah,2
mov cx,5
mov XX,48
top:
mov ah,2
int 21h
Add dx,2
Loop top

Mov ah,4ch
int 21h

endp

I tried to search a lot and could not find the right solution

Answer 1

The desired output "86420" contains descending characters. Why then do you add some value in the loop?

To output characters you need to specify characters. mov dl, 8 is not the same as mov dl, '8' .
An instruction like mov dl, '8' would be the same as mov dl, 56 (8+48).

Now try this code:

 mov  dl, '8'
 mov  cx, 5
top:
 mov  ah, 02h
 int  21h
 sub  dl, 2
 loop top