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Diffstat (limited to 'sysdeps/i386/bits/htontoh.h')
-rw-r--r-- | sysdeps/i386/bits/htontoh.h | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/sysdeps/i386/bits/htontoh.h b/sysdeps/i386/bits/htontoh.h deleted file mode 100644 index 590b509875..0000000000 --- a/sysdeps/i386/bits/htontoh.h +++ /dev/null @@ -1,79 +0,0 @@ -/* Copyright (C) 1997 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _NETINET_IN_H -# error "Don't include this file directly, use <netinet/in.h>" -#endif - -#if defined __GNUC__ && __GNUC__ >= 2 -/* We can use inline assembler instructions to optimize the code. */ - -/* To swap the bytes in a word the i486 processors and up provide the - `bswap' opcode. On i386 we have to use three instructions. */ -# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ - -extern __inline u_int32_t -__ntohl (u_int32_t netlong) -{ - register u_int32_t hostlong; - - __asm__ ("rorw $8, %w0; rorl $16, %0; rorw $8, %w0" - : "=r" (hostlong) - : "0" (netlong)); - - return hostlong; -} - -# else - -extern __inline u_int32_t -__ntohl (u_int32_t netlong) -{ - register u_int32_t hostlong; - - __asm__ ("bswap %0" : "=r" (hostlong) : "0" (netlong)); - - return hostlong; -} - -# endif - -/* For a short word we have a simple solution. */ -extern __inline u_int16_t -__ntohs (u_int16_t netshort) -{ - register u_int16_t hostshort; - - __asm__ ("rorw $8, %w0" : "=r" (hostshort) : "0" (netshort)); -} - - -/* The other direction can be handled with the same functions. */ -extern __inline u_int32_t -__htonl (u_int32_t hostlong) -{ - return __ntohl (hostlong); -} - -extern __inline u_int16_t -__htons (u_int16_t hostshort) -{ - return __ntohs (hostshort); -} - -#endif /* GNU CC */ |