Annotation of XNU/osfmk/i386/ntoh.s, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /*
        !            26:  * HISTORY
        !            27:  * 
        !            28:  * Revision 1.1.1.1  1998/09/22 21:05:37  wsanchez
        !            29:  * Import of Mac OS X kernel (~semeria)
        !            30:  *
        !            31:  * Revision 1.1.1.1  1998/03/07 02:25:38  wsanchez
        !            32:  * Import of OSF Mach kernel (~mburg)
        !            33:  *
        !            34:  * Revision 1.1.6.1  1994/09/23  01:59:41  ezf
        !            35:  *     change marker to not FREE
        !            36:  *     [1994/09/22  21:25:28  ezf]
        !            37:  *
        !            38:  * Revision 1.1.2.2  1993/06/02  23:26:45  jeffc
        !            39:  *     Added to OSF/1 R1.3 from NMK15.0.
        !            40:  *     [1993/06/02  21:06:38  jeffc]
        !            41:  * 
        !            42:  * Revision 1.1  1992/09/30  02:43:08  robert
        !            43:  *     Initial revision
        !            44:  * 
        !            45:  * $EndLog$
        !            46:  */
        !            47: /* CMU_HIST */
        !            48: /*
        !            49:  * Revision 2.4  91/05/14  16:12:50  mrt
        !            50:  *     Correcting copyright
        !            51:  * 
        !            52:  * Revision 2.3  91/02/14  15:04:55  mrt
        !            53:  *     Changed to new Mach copyright
        !            54:  * 
        !            55:  * 
        !            56:  * Revision 2.2  90/05/03  15:34:56  dbg
        !            57:  *     First checkin.
        !            58:  * 
        !            59:  *     New a.out and coff compatible .s files.
        !            60:  *     [89/10/16            rvb]
        !            61:  *
        !            62:  * Revision 1.3  89/02/26  12:35:37  gm0w
        !            63:  *     Changes for cleanup.
        !            64:  * 
        !            65:  * 16-Feb-89  Robert Baron (rvb) at Carnegie-Mellon University
        !            66:  *     Created.
        !            67:  *
        !            68:  */
        !            69: /* CMU_ENDHIST */
        !            70: /* 
        !            71:  * Mach Operating System
        !            72:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
        !            73:  * All Rights Reserved.
        !            74:  * 
        !            75:  * Permission to use, copy, modify and distribute this software and its
        !            76:  * documentation is hereby granted, provided that both the copyright
        !            77:  * notice and this permission notice appear in all copies of the
        !            78:  * software, derivative works or modified versions, and any portions
        !            79:  * thereof, and that both notices appear in supporting documentation.
        !            80:  * 
        !            81:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            82:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            83:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            84:  * 
        !            85:  * Carnegie Mellon requests users of this software to return to
        !            86:  * 
        !            87:  *  Software Distribution Coordinator  or  [email protected]
        !            88:  *  School of Computer Science
        !            89:  *  Carnegie Mellon University
        !            90:  *  Pittsburgh PA 15213-3890
        !            91:  * 
        !            92:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            93:  * the rights to redistribute these changes.
        !            94:  */
        !            95: /*
        !            96:  */
        !            97: 
        !            98: #include <i386/asm.h>
        !            99: 
        !           100: Entry(ntohl)
        !           101: ENTRY(htonl)
        !           102:        movl    4(%esp), %eax
        !           103:        rorw    $8, %ax
        !           104:        ror     $16,%eax
        !           105:        rorw    $8, %ax
        !           106:        ret
        !           107: 
        !           108: 
        !           109: Entry(ntohs)
        !           110: ENTRY(htons)
        !           111:        movzwl  4(%esp), %eax
        !           112:        rorw    $8, %ax
        !           113:        ret

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