1/*******************************************************************
2** m a t h 6 4 . h
3** Forth Inspired Command Language - 64 bit math support routines
4** Author: John Sadler (john_sadler@alum.mit.edu)
5** Created: 25 January 1998
6** $Id: math64.h,v 1.9 2001/12/05 07:21:34 jsadler Exp $
7*******************************************************************/
8/*
9** Copyright (c) 1997-2001 John Sadler (john_sadler@alum.mit.edu)
10** All rights reserved.
11**
12** I am interested in hearing from anyone who uses ficl. If you have
13** a problem, a success story, a defect, an enhancement request, or
14** if you would like to contribute to the ficl release, please
15** contact me by email at the address above.
16**
17** Get the latest Ficl release at http://ficl.sourceforge.net
18**
19** L I C E N S E  and  D I S C L A I M E R
20**
21** Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions
23** are met:
24** 1. Redistributions of source code must retain the above copyright
25**    notice, this list of conditions and the following disclaimer.
26** 2. Redistributions in binary form must reproduce the above copyright
27**    notice, this list of conditions and the following disclaimer in the
28**    documentation and/or other materials provided with the distribution.
29**
30** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
31** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
34** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40** SUCH DAMAGE.
41*/
42
43
44#if !defined (__MATH64_H__)
45#define __MATH64_H__
46
47#ifdef __cplusplus
48extern "C" {
49#endif
50
51DPINT   m64Abs(DPINT x);
52int     m64IsNegative(DPINT x);
53DPUNS   m64Mac(DPUNS u, FICL_UNS mul, FICL_UNS add);
54DPINT   m64MulI(FICL_INT x, FICL_INT y);
55DPINT   m64Negate(DPINT x);
56INTQR   m64FlooredDivI(DPINT num, FICL_INT den);
57void    i64Push(FICL_STACK *pStack, DPINT i64);
58DPINT   i64Pop(FICL_STACK *pStack);
59void    u64Push(FICL_STACK *pStack, DPUNS u64);
60DPUNS   u64Pop(FICL_STACK *pStack);
61INTQR   m64SymmetricDivI(DPINT num, FICL_INT den);
62UNS16   m64UMod(DPUNS *pUD, UNS16 base);
63
64
65#if PORTABLE_LONGMULDIV != 0   /* see sysdep.h */
66DPUNS   m64Add(DPUNS x, DPUNS y);
67DPUNS   m64ASL( DPUNS x );
68DPUNS   m64ASR( DPUNS x );
69int     m64Compare(DPUNS x, DPUNS y);
70DPUNS   m64Or( DPUNS x, DPUNS y );
71DPUNS   m64Sub(DPUNS x, DPUNS y);
72#endif
73
74#define i64Extend(i64) (i64).hi = ((i64).lo < 0) ? -1L : 0
75#define m64CastIU(i64) (*(DPUNS *)(&(i64)))
76#define m64CastUI(u64) (*(DPINT *)(&(u64)))
77#define m64CastQRIU(iqr) (*(UNSQR *)(&(iqr)))
78#define m64CastQRUI(uqr) (*(INTQR *)(&(uqr)))
79
80#define CELL_HI_BIT (1L << (BITS_PER_CELL-1))
81
82#ifdef __cplusplus
83}
84#endif
85
86#endif
87
88