view loadtools/ltmisc.c @ 640:5385aca4d813

fc-loadtool module refactoring: CRC-32 functions split out
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 01 Mar 2020 18:54:29 +0000
parents e7502631a0f9
children 0d199c6a6ea4
line wrap: on
line source

/*
 * This module is a place to implement little miscellaneous fc-loadtool
 * commands which don't belong anywhere else.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

cmd_crc32(argc, argv)
	char **argv;
{
	u_long area_base, area_len;
	char *strtoul_endp;
	u_long crc_result;
	int stat;

	area_base = strtoul(argv[1], &strtoul_endp, 16);
	if (*strtoul_endp) {
inv:		fprintf(stderr, "usage: crc32 hex-start hex-len\n");
		return(-1);
	}
	area_len = strtoul(argv[2], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	stat = crc32_on_target(area_base, area_len, &crc_result);
	if (stat == 0)
		printf("%08lX\n", crc_result);
	return(stat);
}

cmd_dieid(argc, argv)
	char **argv;
{
	static uint32_t addrs[4] = {0xFFFEF010, 0xFFFEF012, 0xFFFEF014,
				    0xFFFEF016};
	uint16_t data[4];
	int i, stat;
	FILE *of;

	for (i = 0; i < 4; i++) {
		stat = do_r16(addrs[i], data + i);
		if (stat)
			return(stat);
		printf("%08lX: %04X\n", (u_long)addrs[i], (int)data[i]);
	}
	if (argc < 2)
		return(0);
	of = fopen(argv[1], "w");
	if (!of) {
		perror(argv[1]);
		return(-1);
	}
	for (i = 0; i < 4; i++)
		fprintf(of, "%08lX: %04X\n", (u_long)addrs[i], (int)data[i]);
	fclose(of);
	printf("Saved to %s\n", argv[1]);
	return(0);
}