; delay.asm
;
; Copyright (C) 2006,2007 Nuno Sucena Almeida
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

	udata
tdelay10	res	1




	code
; -------------------------------------------------------------------
;	10us delay at 20MHz CPU
delay10:
	banksel	tdelay10	; -2
; 	movlw	D'3'		; -1
;   	movlw	D'30'		; -1 <- original
;   	movlw	D'15'		; -1
  	movlw	D'20'		; -1
;  	movlw	D'255'		; -1
	movwf	tdelay10	; -1
delay10loop:
	decfsz	tdelay10,F	; 1
	goto	delay10loop	; 2
	return			; -2

; -------------------------------------------------------------------
;	100us delay at 20MHz CPU
delay100:
	banksel	tdelay10	; -2
; 	movlw	D'3'		; -1
 	movlw	D'255'		; -1
; 	movlw	D'15'		; -1
	movwf	tdelay10	; -1
delay100loop:
	decfsz	tdelay10,F	; 1
	goto	delay100loop	; 2
	return			; -2


	;; global symbols:
	global	delay10
	global	delay100

	end