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Diffstat (limited to 'sysdeps/ieee754/dbl-64/mpa.h')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/mpa.h | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/sysdeps/ieee754/dbl-64/mpa.h b/sysdeps/ieee754/dbl-64/mpa.h deleted file mode 100644 index a665e6b8f7..0000000000 --- a/sysdeps/ieee754/dbl-64/mpa.h +++ /dev/null @@ -1,154 +0,0 @@ -/* - * IBM Accurate Mathematical Library - * Written by International Business Machines Corp. - * Copyright (C) 2001-2017 Free Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2.1 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/************************************************************************/ -/* MODULE_NAME: mpa.h */ -/* */ -/* FUNCTIONS: */ -/* mcr */ -/* acr */ -/* cpy */ -/* mp_dbl */ -/* dbl_mp */ -/* add */ -/* sub */ -/* mul */ -/* dvd */ -/* */ -/* Arithmetic functions for multiple precision numbers. */ -/* Common types and definition */ -/************************************************************************/ - -#include <mpa-arch.h> - -/* The mp_no structure holds the details of a multi-precision floating point - number. - - - The radix of the number (R) is 2 ^ 24. - - - E: The exponent of the number. - - - D[0]: The sign (-1, 1) or 0 if the value is 0. In the latter case, the - values of the remaining members of the structure are ignored. - - - D[1] - D[p]: The mantissa of the number where: - - 0 <= D[i] < R and - P is the precision of the number and 1 <= p <= 32 - - D[p+1] ... D[39] have no significance. - - - The value of the number is: - - D[1] * R ^ (E - 1) + D[2] * R ^ (E - 2) ... D[p] * R ^ (E - p) - - */ -typedef struct -{ - int e; - mantissa_t d[40]; -} mp_no; - -typedef union -{ - int i[2]; - double d; -} number; - -extern const mp_no __mpone; -extern const mp_no __mptwo; - -#define X x->d -#define Y y->d -#define Z z->d -#define EX x->e -#define EY y->e -#define EZ z->e - -#ifndef RADIXI -# define RADIXI 0x1.0p-24 /* 2^-24 */ -#endif - -#ifndef TWO52 -# define TWO52 0x1.0p52 /* 2^52 */ -#endif - -#define TWO5 TWOPOW (5) /* 2^5 */ -#define TWO8 TWOPOW (8) /* 2^52 */ -#define TWO10 TWOPOW (10) /* 2^10 */ -#define TWO18 TWOPOW (18) /* 2^18 */ -#define TWO19 TWOPOW (19) /* 2^19 */ -#define TWO23 TWOPOW (23) /* 2^23 */ - -#define HALFRAD TWO23 - -#define TWO57 0x1.0p57 /* 2^57 */ -#define TWO71 0x1.0p71 /* 2^71 */ -#define TWOM1032 0x1.0p-1032 /* 2^-1032 */ -#define TWOM1022 0x1.0p-1022 /* 2^-1022 */ - -#define HALF 0x1.0p-1 /* 1/2 */ -#define MHALF -0x1.0p-1 /* -1/2 */ - -int __acr (const mp_no *, const mp_no *, int); -void __cpy (const mp_no *, mp_no *, int); -void __mp_dbl (const mp_no *, double *, int); -void __dbl_mp (double, mp_no *, int); -void __add (const mp_no *, const mp_no *, mp_no *, int); -void __sub (const mp_no *, const mp_no *, mp_no *, int); -void __mul (const mp_no *, const mp_no *, mp_no *, int); -void __sqr (const mp_no *, mp_no *, int); -void __dvd (const mp_no *, const mp_no *, mp_no *, int); - -extern void __mpatan (mp_no *, mp_no *, int); -extern void __mpatan2 (mp_no *, mp_no *, mp_no *, int); -extern void __mpsqrt (mp_no *, mp_no *, int); -extern void __mpexp (mp_no *, mp_no *, int); -extern void __c32 (mp_no *, mp_no *, mp_no *, int); -extern int __mpranred (double, mp_no *, int); - -/* Given a power POW, build a multiprecision number 2^POW. */ -static inline void -__pow_mp (int pow, mp_no *y, int p) -{ - int i, rem; - - /* The exponent is E such that E is a factor of 2^24. The remainder (of the - form 2^x) goes entirely into the first digit of the mantissa as it is - always less than 2^24. */ - EY = pow / 24; - rem = pow - EY * 24; - EY++; - - /* If the remainder is negative, it means that POW was negative since - |EY * 24| <= |pow|. Adjust so that REM is positive and still less than - 24 because of which, the mantissa digit is less than 2^24. */ - if (rem < 0) - { - EY--; - rem += 24; - } - /* The sign of any 2^x is always positive. */ - Y[0] = 1; - Y[1] = 1 << rem; - - /* Everything else is 0. */ - for (i = 2; i <= p; i++) - Y[i] = 0; -} |