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/*
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/*
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    Copyright (C) 2004    John Orlando
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    Copyright (C) 2004    John Orlando
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   AVRcam: a small real-time image processing engine.
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   AVRcam: a small real-time image processing engine.
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    This program is free software; you can redistribute it and/or
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    This program is free software; you can redistribute it and/or
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    modify it under the terms of the GNU General Public
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    modify it under the terms of the GNU General Public
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    License as published by the Free Software Foundation; either
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    version 2 of the License, or (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    General Public License for more details.
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    General Public License for more details.
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    You should have received a copy of the GNU General Public
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    You should have received a copy of the GNU General Public
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    License along with this program; if not, write to the Free Software
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    License along with this program; if not, write to the Free Software
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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   For more information on the AVRcam, please contact:
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   For more information on the AVRcam, please contact:
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   john@jrobot.net
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   john@jrobot.net
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   or go to www.jrobot.net for more details regarding the system.
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   or go to www.jrobot.net for more details regarding the system.
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*/
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*/
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/***********************************************************
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/***********************************************************
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	Module Name: Utility.c
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	Module Name: Utility.c
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	Module Date: 04/13/2004
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	Module Date: 04/13/2004
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	Module Auth: John Orlando
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	Module Auth: John Orlando
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	Description: This module provides a basic set of
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	Description: This module provides a basic set of
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	general purpose utilities that can be used by any
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	general purpose utilities that can be used by any
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	module needing them.
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	module needing them.
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    Revision History:
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    Revision History:
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    Date        Rel Ver.    Notes
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    Date        Rel Ver.    Notes
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    4/10/2004      0.1     Module created
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    4/10/2004      0.1     Module created
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    6/30/2004      1.0     Initial release for Circuit Cellar
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    6/30/2004      1.0     Initial release for Circuit Cellar
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                           contest.
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                           contest.
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***********************************************************/
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***********************************************************/
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/*	Includes */
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/*	Includes */
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#include "CommonDefs.h"
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#include "CommonDefs.h"
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/*  Local Variables */
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/*  Local Variables */
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/* 	Local Structures and Typedefs */
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/* 	Local Structures and Typedefs */
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/*  Extern Variables */
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/*  Extern Variables */
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/*  Definitions */
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/*  Definitions */
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/***********************************************************
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/***********************************************************
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	Function Name: Utility_delay
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	Function Name: Utility_delay
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	Function Description: This function provides a busy-wait
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	Function Description: This function provides a busy-wait
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	delay for a specified number of milliseconds.
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	delay for a specified number of milliseconds.
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	Inputs:  numMs - the number of milliseconds to delay
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	Inputs:  numMs - the number of milliseconds to delay
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	Outputs: none
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	Outputs: none
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	NOTES: The delay_loop_1 and delay_loop_2 functions found
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	NOTES: The delay_loop_1 and delay_loop_2 functions found
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	in avr/delay.h provide accurate 3 and 4 cycle delay loops
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	in avr/delay.h provide accurate 3 and 4 cycle delay loops
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	if needed...this isn't really a millisecond, so DON'T
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	if needed...this isn't really a millisecond, so DON'T
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    depend on it for exact timing...
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    depend on it for exact timing...
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***********************************************************/
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***********************************************************/
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void Utility_delay(unsigned short numMs)
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void Utility_delay(unsigned short numMs)
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{
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{
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	volatile unsigned short i=0,j=0;
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	volatile unsigned short i=0,j=0;
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#ifndef SIMULATION
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#ifndef SIMULATION
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	for (i=0; i<numMs; i++)
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	for (i=0; i<numMs; i++)
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	{
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	{
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		for (j=0; j<1000; j++)
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		for (j=0; j<1000; j++)
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		{
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		{
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			asm volatile("nop"::);
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			asm volatile("nop"::);
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		}
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		}
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	}
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	}
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#endif
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#endif
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}
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}
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