usr/src/common/util/i386/muldiv.h

   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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 /*
  24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 #ifndef _MULDIV_H
  29 #define _MULDIV_H
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 /*
  34  * Helper routines for Sun and GCC compilers in 32-bit mode,
  35  * doing 64-bit math.  These routines should not be called directly;
  36  * they are called by code generated by the compiler.  Their declarations
  37  * are here for kmdb's hdr2map and map2linktest mechanisms.
  38  */
  39
  40 #if !defined(__amd64)
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 extern int64_t __mul64(int64_t a, int64_t b);
  47
  48 extern uint64_t __udiv64(uint64_t x, uint64_t y);
  49 extern uint64_t __urem64(uint64_t x, uint64_t y);
  50 extern int64_t __div64(int64_t x, int64_t y);
  51 extern int64_t __rem64(int64_t x, int64_t y);
  52
  53 extern uint64_t __udivdi3(uint64_t a, uint64_t b);
  54 extern uint64_t __umoddi3(uint64_t a, uint64_t b);
  55 extern int64_t __divdi3(int64_t a, int64_t b);
  56 extern int64_t __moddi3(int64_t a, int64_t b);
  57
  58 extern uint64_t __udivrem64(uint64_t x, uint64_t y);
  59 extern int64_t __divrem64(int64_t x, int64_t y);
  60
  61 #ifdef __cplusplus
  62 }
  63 #endif
  64
  65 #endif /* !defined(amd64) */
  66
  67 #endif /* _MULDIV_H */