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 */ |
39 | MPD_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 */ |
70 | extern const float MPD_TWO63; |
71 | extern const uint32_t mpd_invmoduli[3][3]; |
72 | |
73 | enum {P1, P2, P3}; |
74 | |
75 | extern const mpd_uint_t mpd_moduli[]; |
76 | extern const mpd_uint_t mpd_roots[]; |
77 | extern const mpd_size_t mpd_bits[]; |
78 | extern const mpd_uint_t mpd_pow10[]; |
79 | |
80 | extern const mpd_uint_t INV_P1_MOD_P2; |
81 | extern const mpd_uint_t INV_P1P2_MOD_P3; |
82 | extern const mpd_uint_t LH_P1P2; |
83 | extern const mpd_uint_t UH_P1P2; |
84 | |
85 | |
86 | MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */ |
87 | |
88 | |
89 | #endif /* LIBMPDEC_CONSTANTS_H_ */ |
90 | |