1 /* 2 * Copyright (c) 2008-2016 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 CONSTANTS_H 30 #define CONSTANTS_H 31 32 33 #include "mpdecimal.h" 34 35 36 /* Internal header file: all symbols have local scope in the DSO */ 37 MPD_PRAGMA(MPD_HIDE_SYMBOLS_START) 38 39 40 /* choice of optimized functions */ 41 #if defined(CONFIG_64) 42 /* x64 */ 43 #define MULMOD(a, b) x64_mulmod(a, b, umod) 44 #define MULMOD2C(a0, a1, w) x64_mulmod2c(a0, a1, w, umod) 45 #define MULMOD2(a0, b0, a1, b1) x64_mulmod2(a0, b0, a1, b1, umod) 46 #define POWMOD(base, exp) x64_powmod(base, exp, umod) 47 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod) 48 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod) 49 #elif defined(PPRO) 50 /* PentiumPro (or later) gcc inline asm */ 51 #define MULMOD(a, b) ppro_mulmod(a, b, &dmod, dinvmod) 52 #define MULMOD2C(a0, a1, w) ppro_mulmod2c(a0, a1, w, &dmod, dinvmod) 53 #define MULMOD2(a0, b0, a1, b1) ppro_mulmod2(a0, b0, a1, b1, &dmod, dinvmod) 54 #define POWMOD(base, exp) ppro_powmod(base, exp, &dmod, dinvmod) 55 #define SETMODULUS(modnum) ppro_setmodulus(modnum, &umod, &dmod, dinvmod) 56 #define SIZE3_NTT(x0, x1, x2, w3table) ppro_size3_ntt(x0, x1, x2, w3table, umod, &dmod, dinvmod) 57 #else 58 /* ANSI C99 */ 59 #define MULMOD(a, b) std_mulmod(a, b, umod) 60 #define MULMOD2C(a0, a1, w) std_mulmod2c(a0, a1, w, umod) 61 #define MULMOD2(a0, b0, a1, b1) std_mulmod2(a0, b0, a1, b1, umod) 62 #define POWMOD(base, exp) std_powmod(base, exp, umod) 63 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod) 64 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod) 65 #endif 66 67 /* PentiumPro (or later) gcc inline asm */ 68 extern const float MPD_TWO63; 69 extern const uint32_t mpd_invmoduli[3][3]; 70 71 enum {P1, P2, P3}; 72 73 extern const mpd_uint_t mpd_moduli[]; 74 extern const mpd_uint_t mpd_roots[]; 75 extern const mpd_size_t mpd_bits[]; 76 extern const mpd_uint_t mpd_pow10[]; 77 78 extern const mpd_uint_t INV_P1_MOD_P2; 79 extern const mpd_uint_t INV_P1P2_MOD_P3; 80 extern const mpd_uint_t LH_P1P2; 81 extern const mpd_uint_t UH_P1P2; 82 83 84 MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */ 85 86 87 #endif /* CONSTANTS_H */ 88 89 90 91