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