/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2011 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library 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

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

#ifdef SDL_TIMER_NDS

#include <nds.h>

#include <nds/timers.h>

#include "SDL_timer.h"

/* Will wrap afetr 49 days. Shouldn't be an issue. */

static volatile Uint32 timer_ticks;

static void

NDS_TimerInterrupt(void)

{

    timer_ticks++;

}

void

SDL_StartTicks(void)

{

    timer_ticks = 0;

	/* Set timer 2 to fire every ms. */

	timerStart(2, ClockDivider_1024, TIMER_FREQ_1024(1000), NDS_TimerInterrupt);

}

Uint32

SDL_GetTicks(void)

{

    return timer_ticks;

}

void

SDL_Delay(Uint32 ms)

{

    Uint32 start = SDL_GetTicks();

    while (1) {

        if ((SDL_GetTicks() - start) >= ms)

            break;

    }

}

#endif /* SDL_TIMER_NDS */

/* vi: set ts=4 sw=4 expandtab: */