root / fpu / softfloat-native.h @ 668724a7
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1 | 158142c2 | bellard | /* Native implementation of soft float functions */
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2 | 158142c2 | bellard | #include <math.h> |
3 | 38cfa06c | bellard | |
4 | 71e72a19 | Juan Quintela | #if (defined(CONFIG_BSD) && !defined(__APPLE__)) || defined(CONFIG_SOLARIS)
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5 | 158142c2 | bellard | #include <ieeefp.h> |
6 | 38cfa06c | bellard | #define fabsf(f) ((float)fabs(f)) |
7 | 158142c2 | bellard | #else
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8 | 158142c2 | bellard | #include <fenv.h> |
9 | 158142c2 | bellard | #endif
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10 | 38cfa06c | bellard | |
11 | d07cca02 | blueswir1 | #if defined(__OpenBSD__) || defined(__NetBSD__)
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12 | 7c2a9d09 | blueswir1 | #include <sys/param.h> |
13 | 7c2a9d09 | blueswir1 | #endif
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14 | 7c2a9d09 | blueswir1 | |
15 | 38cfa06c | bellard | /*
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16 | 38cfa06c | bellard | * Define some C99-7.12.3 classification macros and
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17 | 38cfa06c | bellard | * some C99-.12.4 for Solaris systems OS less than 10,
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18 | 38cfa06c | bellard | * or Solaris 10 systems running GCC 3.x or less.
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19 | 38cfa06c | bellard | * Solaris 10 with GCC4 does not need these macros as they
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20 | 38cfa06c | bellard | * are defined in <iso/math_c99.h> with a compiler directive
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21 | 38cfa06c | bellard | */
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22 | dfe5fff3 | Juan Quintela | #if defined(CONFIG_SOLARIS) && \
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23 | dfe5fff3 | Juan Quintela | ((CONFIG_SOLARIS_VERSION <= 9 ) || \
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24 | dfe5fff3 | Juan Quintela | ((CONFIG_SOLARIS_VERSION >= 10) && (__GNUC__ < 4))) \ |
25 | 7c2a9d09 | blueswir1 | || (defined(__OpenBSD__) && (OpenBSD < 200811))
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26 | 38cfa06c | bellard | /*
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27 | 38cfa06c | bellard | * C99 7.12.3 classification macros
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28 | 38cfa06c | bellard | * and
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29 | 38cfa06c | bellard | * C99 7.12.14 comparison macros
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30 | 38cfa06c | bellard | *
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31 | 38cfa06c | bellard | * ... do not work on Solaris 10 using GNU CC 3.4.x.
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32 | 38cfa06c | bellard | * Try to workaround the missing / broken C99 math macros.
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33 | 38cfa06c | bellard | */
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34 | 128ab2ff | blueswir1 | #if defined(__OpenBSD__)
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35 | 128ab2ff | blueswir1 | #define unordered(x, y) (isnan(x) || isnan(y))
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36 | 128ab2ff | blueswir1 | #endif
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37 | 38cfa06c | bellard | |
38 | d07cca02 | blueswir1 | #ifdef __NetBSD__
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39 | d07cca02 | blueswir1 | #ifndef isgreater
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40 | d07cca02 | blueswir1 | #define isgreater(x, y) __builtin_isgreater(x, y)
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41 | d07cca02 | blueswir1 | #endif
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42 | d07cca02 | blueswir1 | #ifndef isgreaterequal
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43 | d07cca02 | blueswir1 | #define isgreaterequal(x, y) __builtin_isgreaterequal(x, y)
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44 | d07cca02 | blueswir1 | #endif
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45 | d07cca02 | blueswir1 | #ifndef isless
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46 | d07cca02 | blueswir1 | #define isless(x, y) __builtin_isless(x, y)
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47 | d07cca02 | blueswir1 | #endif
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48 | d07cca02 | blueswir1 | #ifndef islessequal
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49 | d07cca02 | blueswir1 | #define islessequal(x, y) __builtin_islessequal(x, y)
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50 | d07cca02 | blueswir1 | #endif
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51 | d07cca02 | blueswir1 | #ifndef isunordered
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52 | d07cca02 | blueswir1 | #define isunordered(x, y) __builtin_isunordered(x, y)
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53 | d07cca02 | blueswir1 | #endif
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54 | d07cca02 | blueswir1 | #endif
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55 | d07cca02 | blueswir1 | |
56 | d07cca02 | blueswir1 | |
57 | 38cfa06c | bellard | #define isnormal(x) (fpclass(x) >= FP_NZERO)
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58 | 38cfa06c | bellard | #define isgreater(x, y) ((!unordered(x, y)) && ((x) > (y)))
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59 | 38cfa06c | bellard | #define isgreaterequal(x, y) ((!unordered(x, y)) && ((x) >= (y)))
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60 | 38cfa06c | bellard | #define isless(x, y) ((!unordered(x, y)) && ((x) < (y)))
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61 | 38cfa06c | bellard | #define islessequal(x, y) ((!unordered(x, y)) && ((x) <= (y)))
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62 | 38cfa06c | bellard | #define isunordered(x,y) unordered(x, y)
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63 | ec530c81 | bellard | #endif
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64 | 158142c2 | bellard | |
65 | 75b5a697 | Juan Quintela | #if defined(__sun__) && !defined(CONFIG_NEEDS_LIBSUNMATH)
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66 | c94655b0 | ths | |
67 | c94655b0 | ths | #ifndef isnan
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68 | c94655b0 | ths | # define isnan(x) \
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69 | c94655b0 | ths | (sizeof (x) == sizeof (long double) ? isnan_ld (x) \ |
70 | c94655b0 | ths | : sizeof (x) == sizeof (double) ? isnan_d (x) \ |
71 | c94655b0 | ths | : isnan_f (x)) |
72 | c94655b0 | ths | static inline int isnan_f (float x) { return x != x; } |
73 | c94655b0 | ths | static inline int isnan_d (double x) { return x != x; } |
74 | c94655b0 | ths | static inline int isnan_ld (long double x) { return x != x; } |
75 | c94655b0 | ths | #endif
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76 | c94655b0 | ths | |
77 | c94655b0 | ths | #ifndef isinf
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78 | c94655b0 | ths | # define isinf(x) \
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79 | c94655b0 | ths | (sizeof (x) == sizeof (long double) ? isinf_ld (x) \ |
80 | c94655b0 | ths | : sizeof (x) == sizeof (double) ? isinf_d (x) \ |
81 | c94655b0 | ths | : isinf_f (x)) |
82 | c94655b0 | ths | static inline int isinf_f (float x) { return isnan (x - x); } |
83 | c94655b0 | ths | static inline int isinf_d (double x) { return isnan (x - x); } |
84 | c94655b0 | ths | static inline int isinf_ld (long double x) { return isnan (x - x); } |
85 | c94655b0 | ths | #endif
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86 | c94655b0 | ths | #endif
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87 | c94655b0 | ths | |
88 | 158142c2 | bellard | typedef float float32; |
89 | 158142c2 | bellard | typedef double float64; |
90 | 158142c2 | bellard | #ifdef FLOATX80
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91 | 158142c2 | bellard | typedef long double floatx80; |
92 | 158142c2 | bellard | #endif
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93 | 158142c2 | bellard | |
94 | 158142c2 | bellard | typedef union { |
95 | 158142c2 | bellard | float32 f; |
96 | 158142c2 | bellard | uint32_t i; |
97 | 158142c2 | bellard | } float32u; |
98 | 158142c2 | bellard | typedef union { |
99 | 158142c2 | bellard | float64 f; |
100 | 158142c2 | bellard | uint64_t i; |
101 | 158142c2 | bellard | } float64u; |
102 | 158142c2 | bellard | #ifdef FLOATX80
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103 | 158142c2 | bellard | typedef union { |
104 | 158142c2 | bellard | floatx80 f; |
105 | 158142c2 | bellard | struct {
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106 | 158142c2 | bellard | uint64_t low; |
107 | 158142c2 | bellard | uint16_t high; |
108 | 158142c2 | bellard | } i; |
109 | 158142c2 | bellard | } floatx80u; |
110 | 158142c2 | bellard | #endif
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111 | 158142c2 | bellard | |
112 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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113 | 158142c2 | bellard | | Software IEC/IEEE floating-point rounding mode.
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114 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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115 | 71e72a19 | Juan Quintela | #if (defined(CONFIG_BSD) && !defined(__APPLE__)) || defined(CONFIG_SOLARIS)
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116 | 128ab2ff | blueswir1 | #if defined(__OpenBSD__)
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117 | 128ab2ff | blueswir1 | #define FE_RM FP_RM
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118 | 128ab2ff | blueswir1 | #define FE_RP FP_RP
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119 | 128ab2ff | blueswir1 | #define FE_RZ FP_RZ
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120 | 128ab2ff | blueswir1 | #endif
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121 | 158142c2 | bellard | enum {
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122 | 158142c2 | bellard | float_round_nearest_even = FP_RN, |
123 | 7918bf47 | pbrook | float_round_down = FP_RM, |
124 | 7918bf47 | pbrook | float_round_up = FP_RP, |
125 | 7918bf47 | pbrook | float_round_to_zero = FP_RZ |
126 | 158142c2 | bellard | }; |
127 | 158142c2 | bellard | #elif defined(__arm__)
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128 | 158142c2 | bellard | enum {
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129 | 158142c2 | bellard | float_round_nearest_even = 0,
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130 | 158142c2 | bellard | float_round_down = 1,
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131 | 158142c2 | bellard | float_round_up = 2,
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132 | 158142c2 | bellard | float_round_to_zero = 3
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133 | 158142c2 | bellard | }; |
134 | 158142c2 | bellard | #else
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135 | 158142c2 | bellard | enum {
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136 | 158142c2 | bellard | float_round_nearest_even = FE_TONEAREST, |
137 | 158142c2 | bellard | float_round_down = FE_DOWNWARD, |
138 | 158142c2 | bellard | float_round_up = FE_UPWARD, |
139 | 158142c2 | bellard | float_round_to_zero = FE_TOWARDZERO |
140 | 158142c2 | bellard | }; |
141 | 158142c2 | bellard | #endif
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142 | 158142c2 | bellard | |
143 | 158142c2 | bellard | typedef struct float_status { |
144 | e872aa81 | aurel32 | int float_rounding_mode;
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145 | 158142c2 | bellard | #ifdef FLOATX80
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146 | e872aa81 | aurel32 | int floatx80_rounding_precision;
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147 | 158142c2 | bellard | #endif
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148 | 158142c2 | bellard | } float_status; |
149 | 158142c2 | bellard | |
150 | 158142c2 | bellard | void set_float_rounding_mode(int val STATUS_PARAM); |
151 | 158142c2 | bellard | #ifdef FLOATX80
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152 | 158142c2 | bellard | void set_floatx80_rounding_precision(int val STATUS_PARAM); |
153 | 158142c2 | bellard | #endif
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154 | 158142c2 | bellard | |
155 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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156 | 158142c2 | bellard | | Software IEC/IEEE integer-to-floating-point conversion routines.
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157 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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158 | 158142c2 | bellard | float32 int32_to_float32( int STATUS_PARAM);
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159 | 75d62a58 | j_mayer | float32 uint32_to_float32( unsigned int STATUS_PARAM); |
160 | 158142c2 | bellard | float64 int32_to_float64( int STATUS_PARAM);
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161 | 75d62a58 | j_mayer | float64 uint32_to_float64( unsigned int STATUS_PARAM); |
162 | 158142c2 | bellard | #ifdef FLOATX80
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163 | 158142c2 | bellard | floatx80 int32_to_floatx80( int STATUS_PARAM);
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164 | 158142c2 | bellard | #endif
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165 | 158142c2 | bellard | #ifdef FLOAT128
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166 | 158142c2 | bellard | float128 int32_to_float128( int STATUS_PARAM);
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167 | 158142c2 | bellard | #endif
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168 | 158142c2 | bellard | float32 int64_to_float32( int64_t STATUS_PARAM); |
169 | 75d62a58 | j_mayer | float32 uint64_to_float32( uint64_t STATUS_PARAM); |
170 | 158142c2 | bellard | float64 int64_to_float64( int64_t STATUS_PARAM); |
171 | 75d62a58 | j_mayer | float64 uint64_to_float64( uint64_t v STATUS_PARAM); |
172 | 158142c2 | bellard | #ifdef FLOATX80
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173 | 158142c2 | bellard | floatx80 int64_to_floatx80( int64_t STATUS_PARAM); |
174 | 158142c2 | bellard | #endif
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175 | 158142c2 | bellard | #ifdef FLOAT128
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176 | 158142c2 | bellard | float128 int64_to_float128( int64_t STATUS_PARAM); |
177 | 158142c2 | bellard | #endif
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178 | 158142c2 | bellard | |
179 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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180 | 158142c2 | bellard | | Software IEC/IEEE single-precision conversion routines.
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181 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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182 | 158142c2 | bellard | int float32_to_int32( float32 STATUS_PARAM);
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183 | 158142c2 | bellard | int float32_to_int32_round_to_zero( float32 STATUS_PARAM);
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184 | 75d62a58 | j_mayer | unsigned int float32_to_uint32( float32 a STATUS_PARAM); |
185 | 75d62a58 | j_mayer | unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM); |
186 | 158142c2 | bellard | int64_t float32_to_int64( float32 STATUS_PARAM); |
187 | 158142c2 | bellard | int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM); |
188 | 158142c2 | bellard | float64 float32_to_float64( float32 STATUS_PARAM); |
189 | 158142c2 | bellard | #ifdef FLOATX80
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190 | 158142c2 | bellard | floatx80 float32_to_floatx80( float32 STATUS_PARAM); |
191 | 158142c2 | bellard | #endif
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192 | 158142c2 | bellard | #ifdef FLOAT128
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193 | 158142c2 | bellard | float128 float32_to_float128( float32 STATUS_PARAM); |
194 | 158142c2 | bellard | #endif
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195 | 158142c2 | bellard | |
196 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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197 | 158142c2 | bellard | | Software IEC/IEEE single-precision operations.
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198 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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199 | 158142c2 | bellard | float32 float32_round_to_int( float32 STATUS_PARAM); |
200 | 158142c2 | bellard | INLINE float32 float32_add( float32 a, float32 b STATUS_PARAM) |
201 | 158142c2 | bellard | { |
202 | 158142c2 | bellard | return a + b;
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203 | 158142c2 | bellard | } |
204 | 158142c2 | bellard | INLINE float32 float32_sub( float32 a, float32 b STATUS_PARAM) |
205 | 158142c2 | bellard | { |
206 | 158142c2 | bellard | return a - b;
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207 | 158142c2 | bellard | } |
208 | 158142c2 | bellard | INLINE float32 float32_mul( float32 a, float32 b STATUS_PARAM) |
209 | 158142c2 | bellard | { |
210 | 158142c2 | bellard | return a * b;
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211 | 158142c2 | bellard | } |
212 | 158142c2 | bellard | INLINE float32 float32_div( float32 a, float32 b STATUS_PARAM) |
213 | 158142c2 | bellard | { |
214 | 158142c2 | bellard | return a / b;
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215 | 158142c2 | bellard | } |
216 | 158142c2 | bellard | float32 float32_rem( float32, float32 STATUS_PARAM); |
217 | 158142c2 | bellard | float32 float32_sqrt( float32 STATUS_PARAM); |
218 | 750afe93 | bellard | INLINE int float32_eq( float32 a, float32 b STATUS_PARAM)
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219 | 158142c2 | bellard | { |
220 | 158142c2 | bellard | return a == b;
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221 | 158142c2 | bellard | } |
222 | 750afe93 | bellard | INLINE int float32_le( float32 a, float32 b STATUS_PARAM)
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223 | 158142c2 | bellard | { |
224 | 158142c2 | bellard | return a <= b;
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225 | 158142c2 | bellard | } |
226 | 750afe93 | bellard | INLINE int float32_lt( float32 a, float32 b STATUS_PARAM)
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227 | 158142c2 | bellard | { |
228 | 158142c2 | bellard | return a < b;
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229 | 158142c2 | bellard | } |
230 | 750afe93 | bellard | INLINE int float32_eq_signaling( float32 a, float32 b STATUS_PARAM)
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231 | 158142c2 | bellard | { |
232 | b109f9f8 | bellard | return a <= b && a >= b;
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233 | 158142c2 | bellard | } |
234 | 750afe93 | bellard | INLINE int float32_le_quiet( float32 a, float32 b STATUS_PARAM)
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235 | 158142c2 | bellard | { |
236 | 158142c2 | bellard | return islessequal(a, b);
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237 | 158142c2 | bellard | } |
238 | 750afe93 | bellard | INLINE int float32_lt_quiet( float32 a, float32 b STATUS_PARAM)
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239 | 158142c2 | bellard | { |
240 | 158142c2 | bellard | return isless(a, b);
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241 | 158142c2 | bellard | } |
242 | 750afe93 | bellard | INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM)
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243 | b109f9f8 | bellard | { |
244 | b109f9f8 | bellard | return isunordered(a, b);
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245 | b109f9f8 | bellard | |
246 | b109f9f8 | bellard | } |
247 | 750afe93 | bellard | int float32_compare( float32, float32 STATUS_PARAM );
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248 | 750afe93 | bellard | int float32_compare_quiet( float32, float32 STATUS_PARAM );
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249 | 750afe93 | bellard | int float32_is_signaling_nan( float32 );
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250 | 629bd74a | aurel32 | int float32_is_nan( float32 );
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251 | 158142c2 | bellard | |
252 | 158142c2 | bellard | INLINE float32 float32_abs(float32 a) |
253 | 158142c2 | bellard | { |
254 | 158142c2 | bellard | return fabsf(a);
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255 | 158142c2 | bellard | } |
256 | 158142c2 | bellard | |
257 | 158142c2 | bellard | INLINE float32 float32_chs(float32 a) |
258 | 158142c2 | bellard | { |
259 | 158142c2 | bellard | return -a;
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260 | 158142c2 | bellard | } |
261 | 158142c2 | bellard | |
262 | c52ab6f5 | aurel32 | INLINE float32 float32_is_infinity(float32 a) |
263 | c52ab6f5 | aurel32 | { |
264 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_INFINITE;
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265 | c52ab6f5 | aurel32 | } |
266 | c52ab6f5 | aurel32 | |
267 | c52ab6f5 | aurel32 | INLINE float32 float32_is_neg(float32 a) |
268 | c52ab6f5 | aurel32 | { |
269 | 8d6c92b6 | aurel32 | float32u u; |
270 | 8d6c92b6 | aurel32 | u.f = a; |
271 | 8d6c92b6 | aurel32 | return u.i >> 31; |
272 | c52ab6f5 | aurel32 | } |
273 | c52ab6f5 | aurel32 | |
274 | c52ab6f5 | aurel32 | INLINE float32 float32_is_zero(float32 a) |
275 | c52ab6f5 | aurel32 | { |
276 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_ZERO;
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277 | c52ab6f5 | aurel32 | } |
278 | c52ab6f5 | aurel32 | |
279 | 9ee6e8bb | pbrook | INLINE float32 float32_scalbn(float32 a, int n)
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280 | 9ee6e8bb | pbrook | { |
281 | 9ee6e8bb | pbrook | return scalbnf(a, n);
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282 | 9ee6e8bb | pbrook | } |
283 | 9ee6e8bb | pbrook | |
284 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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285 | 158142c2 | bellard | | Software IEC/IEEE double-precision conversion routines.
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286 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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287 | 158142c2 | bellard | int float64_to_int32( float64 STATUS_PARAM );
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288 | 158142c2 | bellard | int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
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289 | 75d62a58 | j_mayer | unsigned int float64_to_uint32( float64 STATUS_PARAM ); |
290 | 75d62a58 | j_mayer | unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); |
291 | 158142c2 | bellard | int64_t float64_to_int64( float64 STATUS_PARAM ); |
292 | 158142c2 | bellard | int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM ); |
293 | 75d62a58 | j_mayer | uint64_t float64_to_uint64( float64 STATUS_PARAM ); |
294 | 75d62a58 | j_mayer | uint64_t float64_to_uint64_round_to_zero( float64 STATUS_PARAM ); |
295 | 158142c2 | bellard | float32 float64_to_float32( float64 STATUS_PARAM ); |
296 | 158142c2 | bellard | #ifdef FLOATX80
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297 | 158142c2 | bellard | floatx80 float64_to_floatx80( float64 STATUS_PARAM ); |
298 | 158142c2 | bellard | #endif
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299 | 158142c2 | bellard | #ifdef FLOAT128
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300 | 158142c2 | bellard | float128 float64_to_float128( float64 STATUS_PARAM ); |
301 | 158142c2 | bellard | #endif
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302 | 158142c2 | bellard | |
303 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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304 | 158142c2 | bellard | | Software IEC/IEEE double-precision operations.
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305 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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306 | 158142c2 | bellard | float64 float64_round_to_int( float64 STATUS_PARAM ); |
307 | e6e5906b | pbrook | float64 float64_trunc_to_int( float64 STATUS_PARAM ); |
308 | 158142c2 | bellard | INLINE float64 float64_add( float64 a, float64 b STATUS_PARAM) |
309 | 158142c2 | bellard | { |
310 | 158142c2 | bellard | return a + b;
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311 | 158142c2 | bellard | } |
312 | 158142c2 | bellard | INLINE float64 float64_sub( float64 a, float64 b STATUS_PARAM) |
313 | 158142c2 | bellard | { |
314 | 158142c2 | bellard | return a - b;
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315 | 158142c2 | bellard | } |
316 | 158142c2 | bellard | INLINE float64 float64_mul( float64 a, float64 b STATUS_PARAM) |
317 | 158142c2 | bellard | { |
318 | 158142c2 | bellard | return a * b;
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319 | 158142c2 | bellard | } |
320 | 158142c2 | bellard | INLINE float64 float64_div( float64 a, float64 b STATUS_PARAM) |
321 | 158142c2 | bellard | { |
322 | 158142c2 | bellard | return a / b;
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323 | 158142c2 | bellard | } |
324 | 158142c2 | bellard | float64 float64_rem( float64, float64 STATUS_PARAM ); |
325 | 158142c2 | bellard | float64 float64_sqrt( float64 STATUS_PARAM ); |
326 | 750afe93 | bellard | INLINE int float64_eq( float64 a, float64 b STATUS_PARAM)
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327 | 158142c2 | bellard | { |
328 | 158142c2 | bellard | return a == b;
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329 | 158142c2 | bellard | } |
330 | 750afe93 | bellard | INLINE int float64_le( float64 a, float64 b STATUS_PARAM)
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331 | 158142c2 | bellard | { |
332 | 158142c2 | bellard | return a <= b;
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333 | 158142c2 | bellard | } |
334 | 750afe93 | bellard | INLINE int float64_lt( float64 a, float64 b STATUS_PARAM)
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335 | 158142c2 | bellard | { |
336 | 158142c2 | bellard | return a < b;
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337 | 158142c2 | bellard | } |
338 | 750afe93 | bellard | INLINE int float64_eq_signaling( float64 a, float64 b STATUS_PARAM)
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339 | 158142c2 | bellard | { |
340 | b109f9f8 | bellard | return a <= b && a >= b;
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341 | 158142c2 | bellard | } |
342 | 750afe93 | bellard | INLINE int float64_le_quiet( float64 a, float64 b STATUS_PARAM)
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343 | 158142c2 | bellard | { |
344 | 158142c2 | bellard | return islessequal(a, b);
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345 | 158142c2 | bellard | } |
346 | 750afe93 | bellard | INLINE int float64_lt_quiet( float64 a, float64 b STATUS_PARAM)
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347 | 158142c2 | bellard | { |
348 | 158142c2 | bellard | return isless(a, b);
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349 | 158142c2 | bellard | |
350 | 158142c2 | bellard | } |
351 | 750afe93 | bellard | INLINE int float64_unordered( float64 a, float64 b STATUS_PARAM)
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352 | b109f9f8 | bellard | { |
353 | b109f9f8 | bellard | return isunordered(a, b);
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354 | b109f9f8 | bellard | |
355 | b109f9f8 | bellard | } |
356 | 750afe93 | bellard | int float64_compare( float64, float64 STATUS_PARAM );
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357 | 750afe93 | bellard | int float64_compare_quiet( float64, float64 STATUS_PARAM );
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358 | 750afe93 | bellard | int float64_is_signaling_nan( float64 );
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359 | 750afe93 | bellard | int float64_is_nan( float64 );
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360 | 158142c2 | bellard | |
361 | 158142c2 | bellard | INLINE float64 float64_abs(float64 a) |
362 | 158142c2 | bellard | { |
363 | 158142c2 | bellard | return fabs(a);
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364 | 158142c2 | bellard | } |
365 | 158142c2 | bellard | |
366 | 158142c2 | bellard | INLINE float64 float64_chs(float64 a) |
367 | 158142c2 | bellard | { |
368 | 158142c2 | bellard | return -a;
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369 | 158142c2 | bellard | } |
370 | 158142c2 | bellard | |
371 | c52ab6f5 | aurel32 | INLINE float64 float64_is_infinity(float64 a) |
372 | c52ab6f5 | aurel32 | { |
373 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_INFINITE;
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374 | c52ab6f5 | aurel32 | } |
375 | c52ab6f5 | aurel32 | |
376 | c52ab6f5 | aurel32 | INLINE float64 float64_is_neg(float64 a) |
377 | c52ab6f5 | aurel32 | { |
378 | 8d6c92b6 | aurel32 | float64u u; |
379 | 8d6c92b6 | aurel32 | u.f = a; |
380 | 8d6c92b6 | aurel32 | return u.i >> 63; |
381 | c52ab6f5 | aurel32 | } |
382 | c52ab6f5 | aurel32 | |
383 | c52ab6f5 | aurel32 | INLINE float64 float64_is_zero(float64 a) |
384 | c52ab6f5 | aurel32 | { |
385 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_ZERO;
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386 | c52ab6f5 | aurel32 | } |
387 | c52ab6f5 | aurel32 | |
388 | 9ee6e8bb | pbrook | INLINE float64 float64_scalbn(float64 a, int n)
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389 | 9ee6e8bb | pbrook | { |
390 | 9ee6e8bb | pbrook | return scalbn(a, n);
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391 | 9ee6e8bb | pbrook | } |
392 | 9ee6e8bb | pbrook | |
393 | 158142c2 | bellard | #ifdef FLOATX80
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394 | 158142c2 | bellard | |
395 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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396 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision conversion routines.
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397 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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398 | 158142c2 | bellard | int floatx80_to_int32( floatx80 STATUS_PARAM );
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399 | 158142c2 | bellard | int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
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400 | 158142c2 | bellard | int64_t floatx80_to_int64( floatx80 STATUS_PARAM); |
401 | 158142c2 | bellard | int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM); |
402 | 158142c2 | bellard | float32 floatx80_to_float32( floatx80 STATUS_PARAM ); |
403 | 158142c2 | bellard | float64 floatx80_to_float64( floatx80 STATUS_PARAM ); |
404 | 158142c2 | bellard | #ifdef FLOAT128
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405 | 158142c2 | bellard | float128 floatx80_to_float128( floatx80 STATUS_PARAM ); |
406 | 158142c2 | bellard | #endif
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407 | 158142c2 | bellard | |
408 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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409 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision operations.
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410 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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411 | 158142c2 | bellard | floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); |
412 | 158142c2 | bellard | INLINE floatx80 floatx80_add( floatx80 a, floatx80 b STATUS_PARAM) |
413 | 158142c2 | bellard | { |
414 | 158142c2 | bellard | return a + b;
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415 | 158142c2 | bellard | } |
416 | 158142c2 | bellard | INLINE floatx80 floatx80_sub( floatx80 a, floatx80 b STATUS_PARAM) |
417 | 158142c2 | bellard | { |
418 | 158142c2 | bellard | return a - b;
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419 | 158142c2 | bellard | } |
420 | 158142c2 | bellard | INLINE floatx80 floatx80_mul( floatx80 a, floatx80 b STATUS_PARAM) |
421 | 158142c2 | bellard | { |
422 | 158142c2 | bellard | return a * b;
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423 | 158142c2 | bellard | } |
424 | 158142c2 | bellard | INLINE floatx80 floatx80_div( floatx80 a, floatx80 b STATUS_PARAM) |
425 | 158142c2 | bellard | { |
426 | 158142c2 | bellard | return a / b;
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427 | 158142c2 | bellard | } |
428 | 158142c2 | bellard | floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); |
429 | 158142c2 | bellard | floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); |
430 | 750afe93 | bellard | INLINE int floatx80_eq( floatx80 a, floatx80 b STATUS_PARAM)
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431 | 158142c2 | bellard | { |
432 | 158142c2 | bellard | return a == b;
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433 | 158142c2 | bellard | } |
434 | 750afe93 | bellard | INLINE int floatx80_le( floatx80 a, floatx80 b STATUS_PARAM)
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435 | 158142c2 | bellard | { |
436 | 158142c2 | bellard | return a <= b;
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437 | 158142c2 | bellard | } |
438 | 750afe93 | bellard | INLINE int floatx80_lt( floatx80 a, floatx80 b STATUS_PARAM)
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439 | 158142c2 | bellard | { |
440 | 158142c2 | bellard | return a < b;
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441 | 158142c2 | bellard | } |
442 | 750afe93 | bellard | INLINE int floatx80_eq_signaling( floatx80 a, floatx80 b STATUS_PARAM)
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443 | 158142c2 | bellard | { |
444 | b109f9f8 | bellard | return a <= b && a >= b;
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445 | 158142c2 | bellard | } |
446 | 750afe93 | bellard | INLINE int floatx80_le_quiet( floatx80 a, floatx80 b STATUS_PARAM)
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447 | 158142c2 | bellard | { |
448 | 158142c2 | bellard | return islessequal(a, b);
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449 | 158142c2 | bellard | } |
450 | 750afe93 | bellard | INLINE int floatx80_lt_quiet( floatx80 a, floatx80 b STATUS_PARAM)
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451 | 158142c2 | bellard | { |
452 | 158142c2 | bellard | return isless(a, b);
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453 | 158142c2 | bellard | |
454 | 158142c2 | bellard | } |
455 | 750afe93 | bellard | INLINE int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM)
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456 | b109f9f8 | bellard | { |
457 | b109f9f8 | bellard | return isunordered(a, b);
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458 | b109f9f8 | bellard | |
459 | b109f9f8 | bellard | } |
460 | 750afe93 | bellard | int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
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461 | 750afe93 | bellard | int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
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462 | 750afe93 | bellard | int floatx80_is_signaling_nan( floatx80 );
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463 | 1b2ad2ec | aurel32 | int floatx80_is_nan( floatx80 );
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464 | 158142c2 | bellard | |
465 | 158142c2 | bellard | INLINE floatx80 floatx80_abs(floatx80 a) |
466 | 158142c2 | bellard | { |
467 | 158142c2 | bellard | return fabsl(a);
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468 | 158142c2 | bellard | } |
469 | 158142c2 | bellard | |
470 | 158142c2 | bellard | INLINE floatx80 floatx80_chs(floatx80 a) |
471 | 158142c2 | bellard | { |
472 | 158142c2 | bellard | return -a;
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473 | 158142c2 | bellard | } |
474 | 9ee6e8bb | pbrook | |
475 | c52ab6f5 | aurel32 | INLINE floatx80 floatx80_is_infinity(floatx80 a) |
476 | c52ab6f5 | aurel32 | { |
477 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_INFINITE;
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478 | c52ab6f5 | aurel32 | } |
479 | c52ab6f5 | aurel32 | |
480 | c52ab6f5 | aurel32 | INLINE floatx80 floatx80_is_neg(floatx80 a) |
481 | c52ab6f5 | aurel32 | { |
482 | 8d6c92b6 | aurel32 | floatx80u u; |
483 | 8d6c92b6 | aurel32 | u.f = a; |
484 | 8d6c92b6 | aurel32 | return u.i.high >> 15; |
485 | c52ab6f5 | aurel32 | } |
486 | c52ab6f5 | aurel32 | |
487 | c52ab6f5 | aurel32 | INLINE floatx80 floatx80_is_zero(floatx80 a) |
488 | c52ab6f5 | aurel32 | { |
489 | c52ab6f5 | aurel32 | return fpclassify(a) == FP_ZERO;
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490 | c52ab6f5 | aurel32 | } |
491 | c52ab6f5 | aurel32 | |
492 | 9ee6e8bb | pbrook | INLINE floatx80 floatx80_scalbn(floatx80 a, int n)
|
493 | 9ee6e8bb | pbrook | { |
494 | 9ee6e8bb | pbrook | return scalbnl(a, n);
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495 | 9ee6e8bb | pbrook | } |
496 | 9ee6e8bb | pbrook | |
497 | 158142c2 | bellard | #endif |