1 /* 2 * Copyright (c) 2008-2024 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 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 28 #ifndef LIBMPDEC_CONSTANTS_H_ 29 #define LIBMPDEC_CONSTANTS_H_ 30 31 32 #include <stdint.h> 33 34 #include "mpdecimal.h" 35 36 37 /* Internal header file: all symbols have local scope in the DSO */ 38 MPD_PRAGMA(MPD_HIDE_SYMBOLS_START) 39 40 41 /* choice of optimized functions */ 42 #if defined(CONFIG_64) 43 /* x64 */ 44 #define MULMOD(a, b) x64_mulmod(a, b, umod) 45 #define MULMOD2C(a0, a1, w) x64_mulmod2c(a0, a1, w, umod) 46 #define MULMOD2(a0, b0, a1, b1) x64_mulmod2(a0, b0, a1, b1, umod) 47 #define POWMOD(base, exp) x64_powmod(base, exp, umod) 48 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod) 49 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod) 50 #elif defined(PPRO) 51 /* PentiumPro (or later) gcc inline asm */ 52 #define MULMOD(a, b) ppro_mulmod(a, b, &dmod, dinvmod) 53 #define MULMOD2C(a0, a1, w) ppro_mulmod2c(a0, a1, w, &dmod, dinvmod) 54 #define MULMOD2(a0, b0, a1, b1) ppro_mulmod2(a0, b0, a1, b1, &dmod, dinvmod) 55 #define POWMOD(base, exp) ppro_powmod(base, exp, &dmod, dinvmod) 56 #define SETMODULUS(modnum) ppro_setmodulus(modnum, &umod, &dmod, dinvmod) 57 #define SIZE3_NTT(x0, x1, x2, w3table) ppro_size3_ntt(x0, x1, x2, w3table, umod, &dmod, dinvmod) 58 #else 59 /* ANSI C99 */ 60 #define MULMOD(a, b) std_mulmod(a, b, umod) 61 #define MULMOD2C(a0, a1, w) std_mulmod2c(a0, a1, w, umod) 62 #define MULMOD2(a0, b0, a1, b1) std_mulmod2(a0, b0, a1, b1, umod) 63 #define POWMOD(base, exp) std_powmod(base, exp, umod) 64 #define SETMODULUS(modnum) std_setmodulus(modnum, &umod) 65 #define SIZE3_NTT(x0, x1, x2, w3table) std_size3_ntt(x0, x1, x2, w3table, umod) 66 #endif 67 68 /* PentiumPro (or later) gcc inline asm */ 69 extern const float MPD_TWO63; 70 extern const uint32_t mpd_invmoduli[3][3]; 71 72 enum {P1, P2, P3}; 73 74 extern const mpd_uint_t mpd_moduli[]; 75 extern const mpd_uint_t mpd_roots[]; 76 extern const mpd_size_t mpd_bits[]; 77 extern const mpd_uint_t mpd_pow10[]; 78 79 extern const mpd_uint_t INV_P1_MOD_P2; 80 extern const mpd_uint_t INV_P1P2_MOD_P3; 81 extern const mpd_uint_t LH_P1P2; 82 extern const mpd_uint_t UH_P1P2; 83 84 85 MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */ 86 87 88 #endif /* LIBMPDEC_CONSTANTS_H_ */ 89