1 /* Macros to swap the order of bytes in integer values. m68k version. 2 Copyright (C) 1997, 2002 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <http://www.gnu.org/licenses/>. */ 18 19 #ifndef _ASM_BITS_BYTESWAP_H 20 #define _ASM_BITS_BYTESWAP_H 1 21 22 #if !defined __mcoldfire__ 23 # define __bswap_non_constant_32(x) \ 24 __extension__ \ 25 ({ unsigned int __bswap_32_v; \ 26 __asm__ __volatile__ ("ror%.w %#8, %0;" \ 27 "swap %0;" \ 28 "ror%.w %#8, %0" \ 29 : "=d" (__bswap_32_v) \ 30 : "0" ((unsigned int) (x))); \ 31 __bswap_32_v; }) 32 #endif 33 34 #endif 35 36 #include <bits/byteswap-common.h> 37