/*
    Nios-sim - one simple NIOSII simulator only for personal interest and fun.
    Copyright (C) 2010  chysun2000@gmail.com

    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 2 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, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include "public.h"

static void print_help(void)
{
	printf("\n----------------------------------------------\n");
	printf(" HELP INFORMATION of NIOS2 Simulator\n");
	printf("----------------------------------------------\n");
	printf(" --image|-i image path name\n");
	printf(" --srec|-s image format is SREC\n");
	printf(" --mem_size|-m memory size of board\n");
	printf(" --debug_mode|-d enter debug mode\n");
	printf(" --base_addr|-b base address of memory\n");
	printf(" --sys_map|-p load symbol table\n");
	printf(" --cmdline|-c set kernel command line\n");
	printf(" --initrd|-r set the address of initrd\n");
	printf(" --fs_image|-f set the file system image\n");
	printf(" --version|-v print the version information\n");
	printf("----------------------------------------------\n");
	printf(" For Example:\n");
	printf(" nios-sim -s -i [srec file] -m [memsize] -d [set to debug mode] \n");
	printf("  -b [base addr of mem] -p [symbol file]\n");
	printf("  -c [kernel command line]\n");
	printf("----------------------------------------------\n");
}

static const char * version = "Simulator for NIOSII(None-MMU) Version 0.1\n Copyright@chysun2000@gmail.com\n";
static void print_version(void)
{
	printf("\n---------------------------------------------\n");
	printf("%s", version);
	printf("---------------------------------------------\n");
}

int main(int argc, char * argv[])
{
	struct option long_opt [] = {
		{"image",required_argument,NULL,'i'},
		{"srec",no_argument, NULL, 's'},
		{"mem_size",required_argument, NULL, 'm'},
		{"debug_mode",no_argument, NULL, 'd'},
		{"base_addr", required_argument, NULL, 'b'},
		{"sys_map", required_argument, NULL, 'p'},
		{"cmdline", required_argument, NULL, 'c'},
		{"initrd", required_argument, NULL, 'r'},
		{"fs_image",required_argument, NULL, 'f'},
		{"version", no_argument, NULL, 'v'},
		{"help", no_argument, NULL, 'h'},
		{0,0,0,0}
	};
	
	char * short_opt = "i:sm:db:p:c:vhr:f:";
	int32_t c = 0;

	while((c = getopt_long(argc, argv, short_opt, long_opt, NULL)) != -1){
		switch(c){
		case 'i':
			set_image_pathname(optarg);
			break;
		case 's':
			set_image_format(SREC_FMT);
			break;
		case 'm':
			set_image_memsize(optarg);
			break;
		case 'd':
			set_debug_mode(get_nios_cpu());
			break;
		case 'b':
			set_image_base_addr(optarg);
			break;
		case 'p':
			load_symbol_file(optarg);
			break;
		case 'c':
			set_cmdline(optarg);
			break;
		case 'r':
			set_initrd(optarg);
			break;
		case 'f':
			set_fs_image(optarg);
			break;
		case 'v':
			print_version();
			return 0;
		case 'h':
			print_help();
			return 0;
		default:
			break;
		}
	}
	
	alloc_image_mem();
	load_image();
	print_image_info();
	simulating();
	return 0;
}