usr/src/lib/libc/port/gen/l3.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  * Convert longs to and from 3-byte disk addresses
  34  */
  35 #pragma weak _l3tol = l3tol
  36 #pragma weak _ltol3 = ltol3
  37
  38 #include "lint.h"
  39
  40 void
  41 ltol3(char *cp, const long *lp, int n)
  42 {
  43         register i;
  44         register char *a, *b;
  45
  46         a = cp;
  47         b = (char *)lp;
  48         for (i = 0; i < n; ++i) {
  49 #if interdata || u370 || u3b || M32
  50                 b++;
  51                 *a++ = *b++;
  52                 *a++ = *b++;
  53                 *a++ = *b++;
  54 #endif
  55 #if vax || i286 || i386
  56                 *a++ = *b++;
  57                 *a++ = *b++;
  58                 *a++ = *b++;
  59                 b++;
  60 #endif
  61 #if pdp11
  62                 *a++ = *b++;
  63                 b++;
  64                 *a++ = *b++;
  65                 *a++ = *b++;
  66 #endif
  67         }
  68 }
  69
  70 void
  71 l3tol(long *lp, const char *cp, int n)
  72 {
  73         register i;
  74         register char *a, *b;
  75
  76         a = (char *)lp;
  77         b = cp;
  78         for (i = 0; i < n; ++i) {
  79 #if interdata || u370 || u3b || M32
  80                 *a++ = 0;
  81                 *a++ = *b++;
  82                 *a++ = *b++;
  83                 *a++ = *b++;
  84 #endif
  85 #if vax || i286 || i386
  86                 *a++ = *b++;
  87                 *a++ = *b++;
  88                 *a++ = *b++;
  89                 *a++ = 0;
  90 #endif
  91 #if pdp11
  92                 *a++ = *b++;
  93                 *a++ = 0;
  94                 *a++ = *b++;
  95                 *a++ = *b++;
  96 #endif
  97         }
  98 }