Newbie help with string

[chrisphillipsuk]

Hi all

I am trying to start to learn Assembly language, but after following a few tutorials on the net I am having big trouble with just printing a string! COIuld you please have a look at the basic code below and let me know why it doesn't work. I am using a86, and the programme compiles ok, but when I run it there is just a load of rubbish printed to the screen. Thanks in advance

string db "Hello World.$"

mov ax,SEG string
mov ds,ax
mov dx,OFFSET string
mov ah,09h
int 21h
mov ax,4c00h
int 21h

 

[arcbkc]

Hi, I don't remember why (but I will let you know). but you need to code it like this.

jmp start ; Add this line.

string db "Hello World.$"

start: ; Add this line.

mov ax,seg string
mov ds,ax
mov dx,OFFSET string
mov ah,09h
int 21h
mov ax,4c00h
int 21h Rod

 

[beyondsociety]

This should work but I'm not sure since I use nasm. I don't know if it will work for a86 assembler but its still x86 code.

[org 100h] ; .com file

jmp start ; jump to label

start:

mov dx,string
mov ah,9
int 21h
mov ax,4ch
int 21h

end

string db "Hello World.",13,10,0

 

[AmkG]

What's "a86"??

"Information has a tendency to be free. Which means someone will always tell you something you don't want to know."

 

[beyondsociety]

a86 is a intel 8086 assembler. You can check it out at:

http://www.mindspring.com/~dpsicilia/