^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* ieee754 floating point arithmetic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * single and double precision
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * BUGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * not much dp done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * doesn't generate IEEE754_INEXACT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * MIPS floating point support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Copyright (C) 1994-2000 Algorithmics Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "ieee754.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "ieee754sp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "ieee754dp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * Special constants
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Older GCC requires the inner braces for initialization of union ieee754dp's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * anonymous struct member. Without an error will result.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define xPCNST(s, b, m, ebias) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .sign = (s), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .bexp = (b) + ebias, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .mant = (m) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define DPCNST(s, b, m) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) xPCNST(s, b, m, DP_EBIAS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) const union ieee754dp __ieee754dp_spcvals[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) DPCNST(0, DP_EMIN - 1, 0x0000000000000ULL), /* + zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) DPCNST(1, DP_EMIN - 1, 0x0000000000000ULL), /* - zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) DPCNST(0, 0, 0x0000000000000ULL), /* + 1.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) DPCNST(1, 0, 0x0000000000000ULL), /* - 1.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) DPCNST(0, 3, 0x4000000000000ULL), /* + 10.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) DPCNST(1, 3, 0x4000000000000ULL), /* - 10.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) DPCNST(0, DP_EMAX + 1, 0x0000000000000ULL), /* + infinity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) DPCNST(1, DP_EMAX + 1, 0x0000000000000ULL), /* - infinity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) DPCNST(0, DP_EMAX + 1, 0x7FFFFFFFFFFFFULL), /* + ind legacy qNaN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) DPCNST(0, DP_EMAX + 1, 0x8000000000000ULL), /* + indef 2008 qNaN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) DPCNST(0, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* + max */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) DPCNST(1, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* - max */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) DPCNST(0, DP_EMIN, 0x0000000000000ULL), /* + min normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) DPCNST(1, DP_EMIN, 0x0000000000000ULL), /* - min normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) DPCNST(0, DP_EMIN - 1, 0x0000000000001ULL), /* + min denormal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) DPCNST(1, DP_EMIN - 1, 0x0000000000001ULL), /* - min denormal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) DPCNST(0, 31, 0x0000000000000ULL), /* + 1.0e31 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) DPCNST(0, 63, 0x0000000000000ULL), /* + 1.0e63 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define SPCNST(s, b, m) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) xPCNST(s, b, m, SP_EBIAS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) const union ieee754sp __ieee754sp_spcvals[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) SPCNST(0, SP_EMIN - 1, 0x000000), /* + zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) SPCNST(1, SP_EMIN - 1, 0x000000), /* - zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) SPCNST(0, 0, 0x000000), /* + 1.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) SPCNST(1, 0, 0x000000), /* - 1.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) SPCNST(0, 3, 0x200000), /* + 10.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) SPCNST(1, 3, 0x200000), /* - 10.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) SPCNST(0, SP_EMAX + 1, 0x000000), /* + infinity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) SPCNST(1, SP_EMAX + 1, 0x000000), /* - infinity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) SPCNST(0, SP_EMAX + 1, 0x3FFFFF), /* + indef legacy quiet NaN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) SPCNST(0, SP_EMAX + 1, 0x400000), /* + indef 2008 quiet NaN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) SPCNST(0, SP_EMAX, 0x7FFFFF), /* + max normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) SPCNST(1, SP_EMAX, 0x7FFFFF), /* - max normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) SPCNST(0, SP_EMIN, 0x000000), /* + min normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) SPCNST(1, SP_EMIN, 0x000000), /* - min normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) SPCNST(0, SP_EMIN - 1, 0x000001), /* + min denormal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) SPCNST(1, SP_EMIN - 1, 0x000001), /* - min denormal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) SPCNST(0, 31, 0x000000), /* + 1.0e31 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) SPCNST(0, 63, 0x000000), /* + 1.0e63 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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