/* sd2snes - SD card based universal cartridge for the SNES Copyright (C) 2009-2010 Maximilian Rehkopf This file was adapted from sd2iec, written by Ingo Korb. Original copyright header follows: */ /* sd2iec - SD/MMC to Commodore serial bus interface/controller Copyright (C) 2007-2009 Ingo Korb Inspiration and low-level SD/MMC access based on code from MMC2IEC by Lars Pontoppidan et al., see sdcard.c|h and config.h. FAT filesystem access based on code from ChaN and Jim Brain, see ff.c|h. 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; version 2 of the License only. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA utils.c: Misc. utility functions that didn't fit elsewhere */ #ifndef UTILS_H #define UTILS_H /* Side-effect safe min/max */ #define max(a,b) \ ({ typeof (a) _a = (a); \ typeof (b) _b = (b); \ _a > _b ? _a : _b; }) #define min(a,b) \ ({ typeof (a) _a = (a); \ typeof (b) _b = (b); \ _a < _b ? _a : _b; }) /* Write a number to a string as ASCII */ uint8_t *appendnumber(uint8_t *msg, uint8_t value); /* Convert between integer and BCD */ uint8_t bcd2int(uint8_t value); uint8_t int2bcd(uint8_t value); /* Tokenize a string like strtok_r, but with a single delimiter character only */ uint8_t *ustr1tok(uint8_t *str, const uint8_t delim, uint8_t **saveptr); #endif