/*
 * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
 *
 * This file is part of nios2sim-ng.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#include <stdio.h>
#include <stdlib.h>

#include "nios2sim-ng.h"
#include "nios2.h"
#include "memory.h"

uint8_t memory_get_byte(struct memory *mem, int32_t addr)
{
	uint8_t *base = (uint8_t *) mem->base;
	return base[addr - mem->image_base];
}

void memory_set_byte(struct memory *mem, int32_t addr, uint8_t data)
{
	uint8_t *base = (uint8_t *) mem->base;
	base[addr - mem->image_base] = data;
}

uint16_t memory_get_halfword(struct memory *mem, int32_t addr)
{
	return mem->base[(addr - mem->image_base) / 2];
}

void memory_set_halfword(struct memory *mem, int32_t addr, uint16_t data)
{
	mem->base[(addr - mem->image_base) / 2] = data;
}

uint32_t memory_get_word(struct memory *mem, int32_t addr)
{
	return mem->base[(addr - mem->image_base) / 4];
}

void memory_set_word(struct memory *mem, int32_t addr, uint32_t data)
{
	mem->base[(addr - mem->image_base) / 4] = data;
}

void memory_dump(struct memory *mem, uint32_t offset, size_t count)
{
	size_t i;

	for (i = 0; i < count; i++) {
		if ((i + 1) % 4 == 1)
			info("%08x:  ", (unsigned int) (offset + i));
		info(" %08x", mem->base[offset / 4 + i]);
		if ((i + 1) % 4 == 0)
			info("\n");
	}
}