diff options
Diffstat (limited to 'lib/libc/ia64/net/byte_swap_4.S')
| -rw-r--r-- | lib/libc/ia64/net/byte_swap_4.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/libc/ia64/net/byte_swap_4.S b/lib/libc/ia64/net/byte_swap_4.S new file mode 100644 index 0000000..c5daa81 --- /dev/null +++ b/lib/libc/ia64/net/byte_swap_4.S @@ -0,0 +1,48 @@ +/* $NetBSD: byte_swap_4.S,v 1.2 1996/10/17 03:08:09 cgd Exp $ */ + +/* + * Copyright (c) 1996 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Chris G. Demetriou + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +#if !defined(ALIAS) || !defined(NAME) +#error ALIAS or NAME not defined +#endif + +/* + * Byte-swap a 4-byte quantity. (Convert 0x01234567 to 0x67452301.) + * + * Argument is an unsigned 4-byte integer (u_int32_t). + */ +WEAK_ALIAS(ALIAS, NAME) +ENTRY(NAME, 1) + mux1 r16=in0,@rev + ;; + extr.u r8=r16,32,32 + br.ret.sptk.few rp +END(NAME) |
