79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/*******************************************************************
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** m a t h 6 4 . h
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** Forth Inspired Command Language - 64 bit math support routines
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** Author: John Sadler (john_sadler@alum.mit.edu)
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** Created: 25 January 1998
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**
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*******************************************************************/
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/*
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** N O T I C E -- DISCLAIMER OF WARRANTY
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**
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** Ficl is freeware. Use it in any way that you like, with
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** the understanding that the code is not supported.
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**
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** Any third party may reproduce, distribute, or modify the ficl
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** software code or any derivative works thereof without any
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** compensation or license, provided that the author information
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** and this disclaimer text are retained in the source code files.
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** The ficl software code is provided on an "as is" basis without
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** warranty of any kind, including, without limitation, the implied
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** warranties of merchantability and fitness for a particular purpose
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** and their equivalents under the laws of any jurisdiction.
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**
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** I am interested in hearing from anyone who uses ficl. If you have
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** a problem, a success story, a defect, an enhancement request, or
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** if you would like to contribute to the ficl release (yay!), please
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** send me email at the address above.
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**
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** NOTE: this file depends on sysdep.h for the definition
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** of PORTABLE_LONGMULDIV and several abstract types.
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**
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*/
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/* $FreeBSD$ */
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#if !defined (__MATH64_H__)
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#define __MATH64_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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DPINT m64Abs(DPINT x);
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int m64IsNegative(DPINT x);
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DPUNS m64Mac(DPUNS u, FICL_UNS mul, FICL_UNS add);
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DPINT m64MulI(FICL_INT x, FICL_INT y);
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DPINT m64Negate(DPINT x);
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INTQR m64FlooredDivI(DPINT num, FICL_INT den);
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void i64Push(FICL_STACK *pStack, DPINT i64);
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DPINT i64Pop(FICL_STACK *pStack);
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void u64Push(FICL_STACK *pStack, DPUNS u64);
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DPUNS u64Pop(FICL_STACK *pStack);
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INTQR m64SymmetricDivI(DPINT num, FICL_INT den);
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UNS16 m64UMod(DPUNS *pUD, UNS16 base);
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#if PORTABLE_LONGMULDIV != 0 /* see sysdep.h */
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DPUNS m64Add(DPUNS x, DPUNS y);
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DPUNS m64ASL( DPUNS x );
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DPUNS m64ASR( DPUNS x );
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int m64Compare(DPUNS x, DPUNS y);
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DPUNS m64Or( DPUNS x, DPUNS y );
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DPUNS m64Sub(DPUNS x, DPUNS y);
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#endif
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#define i64Extend(i64) (i64).hi = ((i64).lo < 0) ? -1L : 0
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#define m64CastIU(i64) (*(DPUNS *)(&(i64)))
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#define m64CastUI(u64) (*(DPINT *)(&(u64)))
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#define m64CastQRIU(iqr) (*(UNSQR *)(&(iqr)))
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#define m64CastQRUI(uqr) (*(INTQR *)(&(uqr)))
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#define CELL_HI_BIT (1L << (BITS_PER_CELL-1))
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#ifdef __cplusplus
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}
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#endif
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#endif
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