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some nops for read command
author heinrichsweikamp
date Sun, 09 Oct 2011 22:18:25 +0200
parents 42acd9316f7a
children e83f883c96b2
line wrap: on
line source

; OSTC - diving computer code
; Copyright (C) 2008 HeinrichsWeikamp GbR
;    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 3 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, see <http://www.gnu.org/licenses/>.
; Wait routines
; written by: chsw, info@heinrichsweikamp.com
; written: 01/31/04
; last updated: 11/05/07
; known bugs:
; ToDo: 
	
; ==========================================================
; 	WAIT 10 MICROSECONDS  -  16 MHZ
; ==========================================================
WAIT10US 	macro	wait_temp
			movlw	wait_temp
			call	WAIT10USX
			endm

WAIT10USX	movwf	wait_temp
			goto	JumpIn10us
WAIT10USX2	nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
JumpIn10us:
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			decfsz	wait_temp,1
			goto	WAIT10USX2
			return
; ==========================================================
; 	WAIT 1 MILLISECOND  -  16 MHZ
; ==========================================================
WAITMS		macro	waitms_temp
			movlw	waitms_temp
			call WAITMSX
			endm
WAITMSX		movwf	waitms_temp
			goto	JumpInMSX
WAITMSX2	nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
JumpInMSX:
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			nop
			WAIT10US d'99'
			decfsz	waitms_temp,1
			goto	WAITMSX2
			return