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8.2

Error printing a string using 21h.

Asked by Wael23 in Assembly Programming Language

Tags: Assembly

This code compiles fine, but generet the following error when I run it:

"Unhandled exception at 0x00401009 in consapp.exe: 0xC0000005: Access violation reading location 0xffffffff."

what am I doing wrong?

OS : XP
Assambler: MASM32

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             ========================================================================
.486                                    ; create 32 bit code
.model flat, stdcall                    ; 32 bit memory model
	
option casemap :none                    ; case sensitive
	
	
	
.data
	Text	db	'This program prints some text on the screen. Program size is 9 bytes + text len.$'
	
.code                                 ; Tell MASM where the code starts
 
start:
	; The CODE entry point to the program
	
	
	mov	ah,09h		; write string
	lea	dx,offset Text		; string offset
	int	21h
	
	ret
		
end start                              ; Tell MASM where the program ends
==============================================================================
           
         

Error printing a string using 21h.

Asked by Wael23 in Assembly Programming Language

Tags: Assembly

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