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 48 extern "C" { 49 #endif 50 51 DPINT m64Abs(DPINT x); 52 int m64IsNegative(DPINT x); 53 DPUNS m64Mac(DPUNS u, FICL_UNS mul, FICL_UNS add); 54 DPINT m64MulI(FICL_INT x, FICL_INT y); 55 DPINT m64Negate(DPINT x); 56 INTQR m64FlooredDivI(DPINT num, FICL_INT den); 57 void i64Push(FICL_STACK *pStack, DPINT i64); 58 DPINT i64Pop(FICL_STACK *pStack); 59 void u64Push(FICL_STACK *pStack, DPUNS u64); 60 DPUNS u64Pop(FICL_STACK *pStack); 61 INTQR m64SymmetricDivI(DPINT num, FICL_INT den); 62 UNS16 m64UMod(DPUNS *pUD, UNS16 base); 63 64 65 #if PORTABLE_LONGMULDIV != 0 /* see sysdep.h */ 66 DPUNS m64Add(DPUNS x, DPUNS y); 67 DPUNS m64ASL( DPUNS x ); 68 DPUNS m64ASR( DPUNS x ); 69 int m64Compare(DPUNS x, DPUNS y); 70 DPUNS m64Or( DPUNS x, DPUNS y ); 71 DPUNS 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