ref: aed91e3cc7bc960f570a987c02097bd4202655df
dir: /src/m_swap.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard // // 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., 59 Temple Place - Suite 330, Boston, MA // 02111-1307, USA. // // DESCRIPTION: // Endianess handling, swapping 16bit and 32bit. // //----------------------------------------------------------------------------- #include "m_swap.h" #ifdef WORDS_BIGENDIAN // Swap 16bit, that is, MSB and LSB byte. unsigned short SwapSHORT(unsigned short x) { // No masking with 0xFF should be necessary. return (x>>8) | (x<<8); } // Swapping 32bit. unsigned int SwapLONG( unsigned int x) { return (x>>24) | ((x>>8) & 0xff00) | ((x<<8) & 0xff0000) | (x<<24); } #endif