fd8e4ebc8c
deprecated in favor of the POSIX-defined lowercase variants. o Change all occurrences of NTOHL() and associated marcros in the source tree to use the lowercase function variants. o Add missing license bits to sparc64's <machine/endian.h>. Approved by: jake o Clean up <machine/endian.h> files. o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>. o Remove prototypes for non-existent bswapXX() functions. o Include <machine/endian.h> in <arpa/inet.h> to define the POSIX-required ntohl() family of functions. o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>, and <sys/param.h>. o Prepend underscores to the ntohl() family to help deal with complexities associated with having MD (asm and inline) versions, and having to prevent exposure of these functions in other headers that happen to make use of endian-specific defines. o Create weak aliases to the canonical function name to help deal with third-party software forgetting to include an appropriate header. o Remove some now unneeded pollution from <sys/types.h>. o Add missing <arpa/inet.h> includes in userland. Tested on: alpha, i386 Reviewed by: bde, jake, tmm
56 lines
1.8 KiB
ArmAsm
56 lines
1.8 KiB
ArmAsm
/* $FreeBSD$ */
|
|
/* $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>
|
|
|
|
#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).
|
|
*/
|
|
XLEAF(ALIAS, 1)
|
|
LEAF(NAME, 1) /* a0 contains 0x01234567 */
|
|
extbl a0, 0, t0 /* t0 = 0x 67 */
|
|
extbl a0, 1, t1 /* t1 = 0x 45 */
|
|
extbl a0, 2, t2 /* t2 = 0x 23 */
|
|
extbl a0, 3, t3 /* t3 = 0x 01 */
|
|
sll t0, 24, t0 /* t0 = 0x67 */
|
|
sll t1, 16, t1 /* t1 = 0x 45 */
|
|
sll t2, 8, t2 /* t2 = 0x 23 */
|
|
or t3, t0, v0 /* v0 = 0x67 01 */
|
|
or t1, t2, t1 /* t1 = 0x 4523 */
|
|
or t1, v0, v0 /* v0 = 0x67452301 */
|
|
RET
|
|
END(NAME)
|