glibc/sysdeps/alpha/htonl.S
Roland McGrath 56e70371a6 Wed May 29 00:57:37 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/alpha/_mcount.S, sysdeps/alpha/bb_init_func.S,
 	sysdeps/alpha/bsd-_setjmp.S, sysdeps/alpha/bsd-setjmp.S,
 	sysdeps/alpha/copysign.S, sysdeps/alpha/divrem.h,
 	sysdeps/alpha/fabs.S, sysdeps/alpha/ffs.S, sysdeps/alpha/htonl.S,
 	sysdeps/alpha/htons.S, sysdeps/alpha/memchr.S,
 	sysdeps/alpha/setjmp.S, sysdeps/alpha/strlen.S,
 	sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S,
 	sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S,
 	sysdeps/unix/sysv/linux/alpha/llseek.S,
 	sysdeps/unix/sysv/linux/alpha/pipe.S,
 	sysdeps/unix/sysv/linux/alpha/sigsuspend.S,
 	sysdeps/unix/sysv/linux/alpha/sysdep.S: Use END macro instead of
 	.end directive.
1996-06-02 18:49:21 +00:00

39 lines
1.2 KiB
ArmAsm

/* Copyright (C) 1996 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
ENTRY(__htonl)
.prologue 0
extlh a0, 5, t1 # t1 = dd000000
zap a0, 0xfd, t2 # t2 = 0000cc00
sll t2, 5, t2 # t2 = 00198000
s8addl t2, t1, t1 # t1 = ddcc0000
zap a0, 0xfb, t2 # t2 = 00bb0000
srl t2, 8, t2 # t2 = 0000bb00
extbl a0, 3, v0 # v0 = 000000aa
or t1, v0, v0 # v0 = ddcc00aa
or t2, v0, v0 # v0 = ddccbbaa
ret
END(__htonl)
strong_alias_asm(__htonl, __ntohl)
weak_alias(__htonl, htonl)
weak_alias(__htonl, ntohl)