/* Macros to swap the order of bytes in integer values. Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _ASM_BITS_BYTESWAP_H #define _ASM_BITS_BYTESWAP_H 1 #define __bswap_non_constant_16(x) \ (__extension__ \ ({ register unsigned short int __v; \ __asm__ __volatile__ ("shl %0 = %1, 48 ;;" \ "mux1 %0 = %0, @rev ;;" \ : "=r" (__v) \ : "r" ((unsigned short int) (x))); \ __v; })) #define __bswap_non_constant_32(x) \ (__extension__ \ ({ register unsigned int __v; \ __asm__ __volatile__ ("shl %0 = %1, 32 ;;" \ "mux1 %0 = %0, @rev ;;" \ : "=r" (__v) \ : "r" ((unsigned int) (x))); \ __v; })) #define __bswap_non_constant_64(x) \ (__extension__ \ ({ register unsigned long int __v; \ __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \ : "=r" (__v) \ : "r" ((unsigned long int) (x))); \ __v; })) #endif #endif #include