; ***********************************************************************
; *									*
; *                       Trivial User Mode Code                        *
; *									*
; ***********************************************************************

; Author:   John Zaitseff <J.Zaitseff@unsw.edu.au>
; Date:     28th May, 2003
; Version:  1.2

; This file contains a trivial User mode program: all it does is increment
; a software-based counter in register R0.  This code represents the "real
; work" that a program might want to do instead of spending its time
; polling hardware devices.

	.text			; Ordinary program code follows

	.global main		; Make this label visible to other modules


main:				; Main program, running in User mode
	mov	r0, #0		; Initialise a trivial counter in R0

count_loop:			; Main program loop
	add	r0, r0, #1	; Increment the counter; this gives the main
				; program something to do...
	nop			; Waste a machine cycle doing nothing
	b	count_loop	; Do this forever (or until stopped)


	.end