1/*
2 * Copyright (c) 2008-2020 Stefan Krah. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28
29#ifndef LIBMPDEC_CONSTANTS_H_
30#define LIBMPDEC_CONSTANTS_H_
31
32
33#include "mpdecimal.h"
34
35#include <stdint.h>
36
37
38/* Internal header file: all symbols have local scope in the DSO */
39MPD_PRAGMA(MPD_HIDE_SYMBOLS_START)
40
41
42/* choice of optimized functions */
43#if defined(CONFIG_64)
44/* x64 */
45 #define MULMOD(a, b) x64_mulmod(a, b, umod)
46 #define MULMOD2C(a0, a1, w) x64_mulmod2c(a0, a1, w, umod)
47 #define MULMOD2(a0, b0, a1, b1) x64_mulmod2(a0, b0, a1, b1, umod)
48 #define POWMOD(base, exp) x64_powmod(base, exp, umod)
49 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod)
50 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod)
51#elif defined(PPRO)
52/* PentiumPro (or later) gcc inline asm */
53 #define MULMOD(a, b) ppro_mulmod(a, b, &dmod, dinvmod)
54 #define MULMOD2C(a0, a1, w) ppro_mulmod2c(a0, a1, w, &dmod, dinvmod)
55 #define MULMOD2(a0, b0, a1, b1) ppro_mulmod2(a0, b0, a1, b1, &dmod, dinvmod)
56 #define POWMOD(base, exp) ppro_powmod(base, exp, &dmod, dinvmod)
57 #define SETMODULUS(modnum) ppro_setmodulus(modnum, &umod, &dmod, dinvmod)
58 #define SIZE3_NTT(x0, x1, x2, w3table) ppro_size3_ntt(x0, x1, x2, w3table, umod, &dmod, dinvmod)
59#else
60 /* ANSI C99 */
61 #define MULMOD(a, b) std_mulmod(a, b, umod)
62 #define MULMOD2C(a0, a1, w) std_mulmod2c(a0, a1, w, umod)
63 #define MULMOD2(a0, b0, a1, b1) std_mulmod2(a0, b0, a1, b1, umod)
64 #define POWMOD(base, exp) std_powmod(base, exp, umod)
65 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod)
66 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod)
67#endif
68
69/* PentiumPro (or later) gcc inline asm */
70extern const float MPD_TWO63;
71extern const uint32_t mpd_invmoduli[3][3];
72
73enum {P1, P2, P3};
74
75extern const mpd_uint_t mpd_moduli[];
76extern const mpd_uint_t mpd_roots[];
77extern const mpd_size_t mpd_bits[];
78extern const mpd_uint_t mpd_pow10[];
79
80extern const mpd_uint_t INV_P1_MOD_P2;
81extern const mpd_uint_t INV_P1P2_MOD_P3;
82extern const mpd_uint_t LH_P1P2;
83extern const mpd_uint_t UH_P1P2;
84
85
86MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */
87
88
89#endif /* LIBMPDEC_CONSTANTS_H_ */
90