Changeset c67aff2 in mainline for uspace/lib/softfloat/include/sftypes.h
 Timestamp:
 20110806T07:04:50Z (13 years ago)
 Branches:
 lfn, master, serial, ticket/834toolchainupdate, topic/msimupgrade, topic/simplifydevexport
 Children:
 d3e241a, e0e922d
 Parents:
 9a6034a
 File:

 1 edited
Legend:
 Unmodified
 Added
 Removed

uspace/lib/softfloat/include/sftypes.h
r9a6034a rc67aff2 1 1 /* 2 2 * Copyright (c) 2005 Josef Cejka 3 * Copyright (c) 2011 Petr Koupy 3 4 * All rights reserved. 4 5 * … … 30 31 * @{ 31 32 */ 32 /** @file 33 /** @file Floating point types and constants. 33 34 */ 34 35 … … 77 78 } float64; 78 79 79 #define FLOAT32_MAX 0x7f800000 80 #define FLOAT32_MIN 0xff800000 81 #define FLOAT64_MAX 82 #define FLOAT64_MIN 80 typedef union { 81 long double ld; 82 struct { 83 #if defined(__BE__) 84 uint64_t hi; 85 uint64_t lo; 86 #elif defined(__LE__) 87 uint64_t lo; 88 uint64_t hi; 89 #else 90 #error Unknown endianess 91 #endif 92 } binary; 93 94 struct { 95 #if defined(__BE__) 96 uint64_t sign : 1; 97 uint64_t exp : 15; 98 uint64_t frac_hi : 48; 99 uint64_t frac_lo : 64; 100 #elif defined(__LE__) 101 uint64_t frac_lo : 64; 102 uint64_t frac_hi : 48; 103 uint64_t exp : 15; 104 uint64_t sign : 1; 105 #else 106 #error Unknown endianess 107 #endif 108 } parts __attribute__ ((packed)); 109 } float128; 83 110 84 111 /* 85 * For recognizing NaNs or infinity use isFloat32NaN and is Float32Inf,112 * For recognizing NaNs or infinity use specialized comparison functions, 86 113 * comparing with these constants is not sufficient. 87 114 */ … … 95 122 #define FLOAT64_INF 0x7FF0000000000000ll 96 123 97 #define FLOAT32_FRACTION_SIZE 23 98 #define FLOAT64_FRACTION_SIZE 52 124 #define FLOAT128_NAN_HI 0x7FFF800000000000ll 125 #define FLOAT128_NAN_LO 0x0000000000000001ll 126 #define FLOAT128_SIGNAN_HI 0x7FFF000000000000ll 127 #define FLOAT128_SIGNAN_LO 0x0000000000000001ll 128 #define FLOAT128_INF_HI 0x7FFF000000000000ll 129 #define FLOAT128_INF_LO 0x0000000000000000ll 99 130 100 #define FLOAT32_HIDDEN_BIT_MASK 0x800000 101 #define FLOAT64_HIDDEN_BIT_MASK 0x10000000000000ll 131 #define FLOAT32_FRACTION_SIZE 23 132 #define FLOAT64_FRACTION_SIZE 52 133 #define FLOAT128_FRACTION_SIZE 112 134 #define FLOAT128_FRAC_HI_SIZE 48 135 #define FLOAT128_FRAC_LO_SIZE 64 136 137 #define FLOAT32_HIDDEN_BIT_MASK 0x800000 138 #define FLOAT64_HIDDEN_BIT_MASK 0x10000000000000ll 139 #define FLOAT128_HIDDEN_BIT_MASK_HI 0x1000000000000ll 140 #define FLOAT128_HIDDEN_BIT_MASK_LO 0x0000000000000000ll 102 141 103 142 #define FLOAT32_MAX_EXPONENT 0xFF 104 143 #define FLOAT64_MAX_EXPONENT 0x7FF 144 #define FLOAT128_MAX_EXPONENT 0x7FFF 105 145 106 146 #define FLOAT32_BIAS 0x7F 107 147 #define FLOAT64_BIAS 0x3FF 108 148 #define FLOAT80_BIAS 0x3FFF 149 #define FLOAT128_BIAS 0x3FFF 109 150 110 151 #endif
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