/*
 *  NERV -- Naive Educational RISC-V Processor
 *
 *  Copyright (C) 2020  Miodrag Milanovic <miodrag@yosyshq.com>
 *
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#include <stdint.h>

void delay(uint32_t count)
{
	while(count-->0) {
		__asm__ volatile ("nop");
	}
}

int main()
{
	volatile uint32_t *leds = (void*)0x01000000;
	*leds = 0;
	uint32_t cnt = 0;
	while(1)
	{
		delay(100000);
		*leds = cnt++;
	}
	return 0;
}