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/
/ Copyright 2005 Sun Microsystems, Inc. All rights reserved.
/ Use is subject to license terms.
/
/ CDDL HEADER START
/
/ The contents of this file are subject to the terms of the
/ Common Development and Distribution License, Version 1.0 only
/ (the "License"). You may not use this file except in compliance
/ with the License.
/
/ You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
/ or http://www.opensolaris.org/os/licensing.
/ See the License for the specific language governing permissions
/ and limitations under the License.
/
/ When distributing Covered Code, include this CDDL HEADER in each
/ file and include the License file at usr/src/OPENSOLARIS.LICENSE.
/ If applicable, add the following below this CDDL HEADER, with the
/ fields enclosed by brackets "[]" replaced with your own identifying
/ information: Portions Copyright [yyyy] [name of copyright owner]
/
/ CDDL HEADER END
/
.ident "%Z%%M% %I% %E% SMI"
.file "byteorder.s"
#include <sys/asm_linkage.h>
/
/ uint32_t htonl(uint32_t hl);
/ uint32_t ntohl(uint32_t nl);
/
/ reverses the byte order of the argument.
/
ENTRY(htonl)
ENTRY(ntohl)
movl 4(%esp), %eax / %eax = hl
bswap %eax / reverses the byte order of %eax
ret / return (%eax)
SET_SIZE(htonl)
SET_SIZE(ntohl)
/
/ uint16_t htons(uint16_t hs);
/ uint16_t ntohs(uint16_t ns);
/
/ reverses the byte order of the argument.
/
ENTRY(htons)
ENTRY(ntohs)
movl 4(%esp), %eax / %eax = hs
bswap %eax / reverses the byte order of %eax
shrl $16, %eax / moves high 16-bit to low 16-bit
ret / return (%eax)
SET_SIZE(htons)
SET_SIZE(ntohs)
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