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1 | 158142c2 | bellard | /*============================================================================
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2 | 158142c2 | bellard | |
3 | 158142c2 | bellard | This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic
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4 | 158142c2 | bellard | Package, Release 2b.
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5 | 158142c2 | bellard | |
6 | 158142c2 | bellard | Written by John R. Hauser. This work was made possible in part by the
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7 | 158142c2 | bellard | International Computer Science Institute, located at Suite 600, 1947 Center
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8 | 158142c2 | bellard | Street, Berkeley, California 94704. Funding was partially provided by the
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9 | 158142c2 | bellard | National Science Foundation under grant MIP-9311980. The original version
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10 | 158142c2 | bellard | of this code was written as part of a project to build a fixed-point vector
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11 | 158142c2 | bellard | processor in collaboration with the University of California at Berkeley,
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12 | 158142c2 | bellard | overseen by Profs. Nelson Morgan and John Wawrzynek. More information
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13 | 158142c2 | bellard | is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
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14 | 158142c2 | bellard | arithmetic/SoftFloat.html'.
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15 | 158142c2 | bellard | |
16 | 158142c2 | bellard | THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has
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17 | 158142c2 | bellard | been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
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18 | 158142c2 | bellard | RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
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19 | 158142c2 | bellard | AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
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20 | 158142c2 | bellard | COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
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21 | 158142c2 | bellard | EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
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22 | 158142c2 | bellard | INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
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23 | 158142c2 | bellard | OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
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24 | 158142c2 | bellard | |
25 | 158142c2 | bellard | Derivative works are acceptable, even for commercial purposes, so long as
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26 | 158142c2 | bellard | (1) the source code for the derivative work includes prominent notice that
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27 | 158142c2 | bellard | the work is derivative, and (2) the source code includes prominent notice with
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28 | 158142c2 | bellard | these four paragraphs for those parts of this code that are retained.
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29 | 158142c2 | bellard | |
30 | 158142c2 | bellard | =============================================================================*/
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31 | 158142c2 | bellard | |
32 | 158142c2 | bellard | #ifndef SOFTFLOAT_H
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33 | 158142c2 | bellard | #define SOFTFLOAT_H
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34 | 158142c2 | bellard | |
35 | 0475a5ca | ths | #if defined(HOST_SOLARIS) && defined(NEEDS_LIBSUNMATH)
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36 | 0475a5ca | ths | #include <sunmath.h> |
37 | 0475a5ca | ths | #endif
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38 | 0475a5ca | ths | |
39 | 158142c2 | bellard | #include <inttypes.h> |
40 | 158142c2 | bellard | #include "config.h" |
41 | 158142c2 | bellard | |
42 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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43 | 158142c2 | bellard | | Each of the following `typedef's defines the most convenient type that holds
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44 | 158142c2 | bellard | | integers of at least as many bits as specified. For example, `uint8' should
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45 | 158142c2 | bellard | | be the most convenient type that can hold unsigned integers of as many as
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46 | 158142c2 | bellard | | 8 bits. The `flag' type must be able to hold either a 0 or 1. For most
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47 | 158142c2 | bellard | | implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
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48 | 158142c2 | bellard | | to the same as `int'.
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49 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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50 | 750afe93 | bellard | typedef uint8_t flag;
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51 | 158142c2 | bellard | typedef uint8_t uint8;
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52 | 158142c2 | bellard | typedef int8_t int8;
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53 | 158142c2 | bellard | typedef int uint16; |
54 | 158142c2 | bellard | typedef int int16; |
55 | 158142c2 | bellard | typedef unsigned int uint32; |
56 | 158142c2 | bellard | typedef signed int int32; |
57 | 158142c2 | bellard | typedef uint64_t uint64;
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58 | 158142c2 | bellard | typedef int64_t int64;
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59 | 158142c2 | bellard | |
60 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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61 | 158142c2 | bellard | | Each of the following `typedef's defines a type that holds integers
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62 | 158142c2 | bellard | | of _exactly_ the number of bits specified. For instance, for most
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63 | 158142c2 | bellard | | implementation of C, `bits16' and `sbits16' should be `typedef'ed to
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64 | 158142c2 | bellard | | `unsigned short int' and `signed short int' (or `short int'), respectively.
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65 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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66 | 158142c2 | bellard | typedef uint8_t bits8;
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67 | 158142c2 | bellard | typedef int8_t sbits8;
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68 | 158142c2 | bellard | typedef uint16_t bits16;
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69 | 158142c2 | bellard | typedef int16_t sbits16;
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70 | 158142c2 | bellard | typedef uint32_t bits32;
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71 | 158142c2 | bellard | typedef int32_t sbits32;
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72 | 158142c2 | bellard | typedef uint64_t bits64;
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73 | 158142c2 | bellard | typedef int64_t sbits64;
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74 | 158142c2 | bellard | |
75 | 158142c2 | bellard | #define LIT64( a ) a##LL |
76 | 158142c2 | bellard | #define INLINE static inline |
77 | 158142c2 | bellard | |
78 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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79 | 158142c2 | bellard | | The macro `FLOATX80' must be defined to enable the extended double-precision
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80 | 158142c2 | bellard | | floating-point format `floatx80'. If this macro is not defined, the
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81 | 158142c2 | bellard | | `floatx80' type will not be defined, and none of the functions that either
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82 | 158142c2 | bellard | | input or output the `floatx80' type will be defined. The same applies to
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83 | 158142c2 | bellard | | the `FLOAT128' macro and the quadruple-precision format `float128'.
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84 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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85 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
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86 | 158142c2 | bellard | /* bit exact soft float support */
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87 | 158142c2 | bellard | #define FLOATX80
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88 | 158142c2 | bellard | #define FLOAT128
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89 | 158142c2 | bellard | #else
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90 | 158142c2 | bellard | /* native float support */
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91 | 158142c2 | bellard | #if (defined(__i386__) || defined(__x86_64__)) && !defined(_BSD)
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92 | 158142c2 | bellard | #define FLOATX80
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93 | 158142c2 | bellard | #endif
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94 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
95 | 158142c2 | bellard | |
96 | 158142c2 | bellard | #define STATUS_PARAM , float_status *status
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97 | 158142c2 | bellard | #define STATUS(field) status->field
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98 | 158142c2 | bellard | #define STATUS_VAR , status
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99 | 158142c2 | bellard | |
100 | 1d6bda35 | bellard | /*----------------------------------------------------------------------------
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101 | 1d6bda35 | bellard | | Software IEC/IEEE floating-point ordering relations
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102 | 1d6bda35 | bellard | *----------------------------------------------------------------------------*/
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103 | 1d6bda35 | bellard | enum {
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104 | 1d6bda35 | bellard | float_relation_less = -1,
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105 | 1d6bda35 | bellard | float_relation_equal = 0,
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106 | 1d6bda35 | bellard | float_relation_greater = 1,
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107 | 1d6bda35 | bellard | float_relation_unordered = 2
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108 | 1d6bda35 | bellard | }; |
109 | 1d6bda35 | bellard | |
110 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
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111 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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112 | 158142c2 | bellard | | Software IEC/IEEE floating-point types.
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113 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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114 | f090c9d4 | pbrook | /* Use structures for soft-float types. This prevents accidentally mixing
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115 | f090c9d4 | pbrook | them with native int/float types. A sufficiently clever compiler and
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116 | f090c9d4 | pbrook | sane ABI should be able to see though these structs. However
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117 | f090c9d4 | pbrook | x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */
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118 | f090c9d4 | pbrook | //#define USE_SOFTFLOAT_STRUCT_TYPES
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119 | f090c9d4 | pbrook | #ifdef USE_SOFTFLOAT_STRUCT_TYPES
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120 | f090c9d4 | pbrook | typedef struct { |
121 | f090c9d4 | pbrook | uint32_t v; |
122 | f090c9d4 | pbrook | } float32; |
123 | f090c9d4 | pbrook | /* The cast ensures an error if the wrong type is passed. */
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124 | f090c9d4 | pbrook | #define float32_val(x) (((float32)(x)).v)
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125 | f090c9d4 | pbrook | #define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; })
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126 | f090c9d4 | pbrook | typedef struct { |
127 | f090c9d4 | pbrook | uint64_t v; |
128 | f090c9d4 | pbrook | } float64; |
129 | f090c9d4 | pbrook | #define float64_val(x) (((float64)(x)).v)
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130 | f090c9d4 | pbrook | #define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; })
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131 | f090c9d4 | pbrook | #else
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132 | 158142c2 | bellard | typedef uint32_t float32;
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133 | 158142c2 | bellard | typedef uint64_t float64;
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134 | f090c9d4 | pbrook | #define float32_val(x) (x)
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135 | f090c9d4 | pbrook | #define float64_val(x) (x)
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136 | f090c9d4 | pbrook | #define make_float32(x) (x)
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137 | f090c9d4 | pbrook | #define make_float64(x) (x)
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138 | f090c9d4 | pbrook | #endif
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139 | 158142c2 | bellard | #ifdef FLOATX80
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140 | 158142c2 | bellard | typedef struct { |
141 | 158142c2 | bellard | uint64_t low; |
142 | 158142c2 | bellard | uint16_t high; |
143 | 158142c2 | bellard | } floatx80; |
144 | 158142c2 | bellard | #endif
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145 | 158142c2 | bellard | #ifdef FLOAT128
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146 | 158142c2 | bellard | typedef struct { |
147 | 158142c2 | bellard | #ifdef WORDS_BIGENDIAN
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148 | 158142c2 | bellard | uint64_t high, low; |
149 | 158142c2 | bellard | #else
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150 | 158142c2 | bellard | uint64_t low, high; |
151 | 158142c2 | bellard | #endif
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152 | 158142c2 | bellard | } float128; |
153 | 158142c2 | bellard | #endif
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154 | 158142c2 | bellard | |
155 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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156 | 158142c2 | bellard | | Software IEC/IEEE floating-point underflow tininess-detection mode.
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157 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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158 | 158142c2 | bellard | enum {
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159 | 158142c2 | bellard | float_tininess_after_rounding = 0,
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160 | 158142c2 | bellard | float_tininess_before_rounding = 1
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161 | 158142c2 | bellard | }; |
162 | 158142c2 | bellard | |
163 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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164 | 158142c2 | bellard | | Software IEC/IEEE floating-point rounding mode.
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165 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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166 | 158142c2 | bellard | enum {
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167 | 158142c2 | bellard | float_round_nearest_even = 0,
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168 | 158142c2 | bellard | float_round_down = 1,
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169 | 158142c2 | bellard | float_round_up = 2,
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170 | 158142c2 | bellard | float_round_to_zero = 3
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171 | 158142c2 | bellard | }; |
172 | 158142c2 | bellard | |
173 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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174 | 158142c2 | bellard | | Software IEC/IEEE floating-point exception flags.
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175 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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176 | 158142c2 | bellard | enum {
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177 | 158142c2 | bellard | float_flag_invalid = 1,
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178 | 158142c2 | bellard | float_flag_divbyzero = 4,
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179 | 158142c2 | bellard | float_flag_overflow = 8,
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180 | 158142c2 | bellard | float_flag_underflow = 16,
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181 | 158142c2 | bellard | float_flag_inexact = 32
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182 | 158142c2 | bellard | }; |
183 | 158142c2 | bellard | |
184 | 158142c2 | bellard | typedef struct float_status { |
185 | 158142c2 | bellard | signed char float_detect_tininess; |
186 | 158142c2 | bellard | signed char float_rounding_mode; |
187 | 158142c2 | bellard | signed char float_exception_flags; |
188 | 158142c2 | bellard | #ifdef FLOATX80
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189 | 158142c2 | bellard | signed char floatx80_rounding_precision; |
190 | 158142c2 | bellard | #endif
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191 | 158142c2 | bellard | } float_status; |
192 | 158142c2 | bellard | |
193 | 158142c2 | bellard | void set_float_rounding_mode(int val STATUS_PARAM); |
194 | 1d6bda35 | bellard | void set_float_exception_flags(int val STATUS_PARAM); |
195 | 1d6bda35 | bellard | INLINE int get_float_exception_flags(float_status *status)
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196 | 1d6bda35 | bellard | { |
197 | 1d6bda35 | bellard | return STATUS(float_exception_flags);
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198 | 1d6bda35 | bellard | } |
199 | 158142c2 | bellard | #ifdef FLOATX80
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200 | 158142c2 | bellard | void set_floatx80_rounding_precision(int val STATUS_PARAM); |
201 | 158142c2 | bellard | #endif
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202 | 158142c2 | bellard | |
203 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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204 | 158142c2 | bellard | | Routine to raise any or all of the software IEC/IEEE floating-point
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205 | 158142c2 | bellard | | exception flags.
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206 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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207 | ec530c81 | bellard | void float_raise( int8 flags STATUS_PARAM);
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208 | 158142c2 | bellard | |
209 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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210 | 158142c2 | bellard | | Software IEC/IEEE integer-to-floating-point conversion routines.
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211 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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212 | 158142c2 | bellard | float32 int32_to_float32( int STATUS_PARAM );
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213 | 158142c2 | bellard | float64 int32_to_float64( int STATUS_PARAM );
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214 | 1d6bda35 | bellard | float32 uint32_to_float32( unsigned int STATUS_PARAM ); |
215 | 1d6bda35 | bellard | float64 uint32_to_float64( unsigned int STATUS_PARAM ); |
216 | 158142c2 | bellard | #ifdef FLOATX80
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217 | 158142c2 | bellard | floatx80 int32_to_floatx80( int STATUS_PARAM );
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218 | 158142c2 | bellard | #endif
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219 | 158142c2 | bellard | #ifdef FLOAT128
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220 | 158142c2 | bellard | float128 int32_to_float128( int STATUS_PARAM );
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221 | 158142c2 | bellard | #endif
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222 | 158142c2 | bellard | float32 int64_to_float32( int64_t STATUS_PARAM ); |
223 | 75d62a58 | j_mayer | float32 uint64_to_float32( uint64_t STATUS_PARAM ); |
224 | 158142c2 | bellard | float64 int64_to_float64( int64_t STATUS_PARAM ); |
225 | 75d62a58 | j_mayer | float64 uint64_to_float64( uint64_t STATUS_PARAM ); |
226 | 158142c2 | bellard | #ifdef FLOATX80
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227 | 158142c2 | bellard | floatx80 int64_to_floatx80( int64_t STATUS_PARAM ); |
228 | 158142c2 | bellard | #endif
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229 | 158142c2 | bellard | #ifdef FLOAT128
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230 | 158142c2 | bellard | float128 int64_to_float128( int64_t STATUS_PARAM ); |
231 | 158142c2 | bellard | #endif
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232 | 158142c2 | bellard | |
233 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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234 | 158142c2 | bellard | | Software IEC/IEEE single-precision conversion routines.
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235 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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236 | 158142c2 | bellard | int float32_to_int32( float32 STATUS_PARAM );
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237 | 158142c2 | bellard | int float32_to_int32_round_to_zero( float32 STATUS_PARAM );
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238 | 1d6bda35 | bellard | unsigned int float32_to_uint32( float32 STATUS_PARAM ); |
239 | 1d6bda35 | bellard | unsigned int float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); |
240 | 158142c2 | bellard | int64_t float32_to_int64( float32 STATUS_PARAM ); |
241 | 158142c2 | bellard | int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM ); |
242 | 158142c2 | bellard | float64 float32_to_float64( float32 STATUS_PARAM ); |
243 | 158142c2 | bellard | #ifdef FLOATX80
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244 | 158142c2 | bellard | floatx80 float32_to_floatx80( float32 STATUS_PARAM ); |
245 | 158142c2 | bellard | #endif
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246 | 158142c2 | bellard | #ifdef FLOAT128
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247 | 158142c2 | bellard | float128 float32_to_float128( float32 STATUS_PARAM ); |
248 | 158142c2 | bellard | #endif
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249 | 158142c2 | bellard | |
250 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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251 | 158142c2 | bellard | | Software IEC/IEEE single-precision operations.
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252 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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253 | 158142c2 | bellard | float32 float32_round_to_int( float32 STATUS_PARAM ); |
254 | 158142c2 | bellard | float32 float32_add( float32, float32 STATUS_PARAM ); |
255 | 158142c2 | bellard | float32 float32_sub( float32, float32 STATUS_PARAM ); |
256 | 158142c2 | bellard | float32 float32_mul( float32, float32 STATUS_PARAM ); |
257 | 158142c2 | bellard | float32 float32_div( float32, float32 STATUS_PARAM ); |
258 | 158142c2 | bellard | float32 float32_rem( float32, float32 STATUS_PARAM ); |
259 | 158142c2 | bellard | float32 float32_sqrt( float32 STATUS_PARAM ); |
260 | 750afe93 | bellard | int float32_eq( float32, float32 STATUS_PARAM );
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261 | 750afe93 | bellard | int float32_le( float32, float32 STATUS_PARAM );
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262 | 750afe93 | bellard | int float32_lt( float32, float32 STATUS_PARAM );
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263 | 750afe93 | bellard | int float32_eq_signaling( float32, float32 STATUS_PARAM );
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264 | 750afe93 | bellard | int float32_le_quiet( float32, float32 STATUS_PARAM );
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265 | 750afe93 | bellard | int float32_lt_quiet( float32, float32 STATUS_PARAM );
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266 | 750afe93 | bellard | int float32_compare( float32, float32 STATUS_PARAM );
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267 | 750afe93 | bellard | int float32_compare_quiet( float32, float32 STATUS_PARAM );
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268 | 924b2c07 | ths | int float32_is_nan( float32 );
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269 | 750afe93 | bellard | int float32_is_signaling_nan( float32 );
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270 | 9ee6e8bb | pbrook | float32 float32_scalbn( float32, int STATUS_PARAM );
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271 | 158142c2 | bellard | |
272 | 1d6bda35 | bellard | INLINE float32 float32_abs(float32 a) |
273 | 1d6bda35 | bellard | { |
274 | f090c9d4 | pbrook | return make_float32(float32_val(a) & 0x7fffffff); |
275 | 1d6bda35 | bellard | } |
276 | 1d6bda35 | bellard | |
277 | 1d6bda35 | bellard | INLINE float32 float32_chs(float32 a) |
278 | 1d6bda35 | bellard | { |
279 | f090c9d4 | pbrook | return make_float32(float32_val(a) ^ 0x80000000); |
280 | 1d6bda35 | bellard | } |
281 | 1d6bda35 | bellard | |
282 | f090c9d4 | pbrook | #define float32_zero make_float32(0) |
283 | f090c9d4 | 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 | 1d6bda35 | bellard | unsigned int float64_to_uint32( float64 STATUS_PARAM ); |
290 | 1d6bda35 | bellard | 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 a STATUS_PARAM); |
294 | 75d62a58 | j_mayer | uint64_t float64_to_uint64_round_to_zero (float64 a 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 | float64 float64_add( float64, float64 STATUS_PARAM ); |
309 | 158142c2 | bellard | float64 float64_sub( float64, float64 STATUS_PARAM ); |
310 | 158142c2 | bellard | float64 float64_mul( float64, float64 STATUS_PARAM ); |
311 | 158142c2 | bellard | float64 float64_div( float64, float64 STATUS_PARAM ); |
312 | 158142c2 | bellard | float64 float64_rem( float64, float64 STATUS_PARAM ); |
313 | 158142c2 | bellard | float64 float64_sqrt( float64 STATUS_PARAM ); |
314 | 750afe93 | bellard | int float64_eq( float64, float64 STATUS_PARAM );
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315 | 750afe93 | bellard | int float64_le( float64, float64 STATUS_PARAM );
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316 | 750afe93 | bellard | int float64_lt( float64, float64 STATUS_PARAM );
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317 | 750afe93 | bellard | int float64_eq_signaling( float64, float64 STATUS_PARAM );
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318 | 750afe93 | bellard | int float64_le_quiet( float64, float64 STATUS_PARAM );
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319 | 750afe93 | bellard | int float64_lt_quiet( float64, float64 STATUS_PARAM );
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320 | 750afe93 | bellard | int float64_compare( float64, float64 STATUS_PARAM );
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321 | 750afe93 | bellard | int float64_compare_quiet( float64, float64 STATUS_PARAM );
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322 | 924b2c07 | ths | int float64_is_nan( float64 a );
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323 | 750afe93 | bellard | int float64_is_signaling_nan( float64 );
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324 | 9ee6e8bb | pbrook | float64 float64_scalbn( float64, int STATUS_PARAM );
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325 | 158142c2 | bellard | |
326 | 1d6bda35 | bellard | INLINE float64 float64_abs(float64 a) |
327 | 1d6bda35 | bellard | { |
328 | f090c9d4 | pbrook | return make_float64(float64_val(a) & 0x7fffffffffffffffLL); |
329 | 1d6bda35 | bellard | } |
330 | 1d6bda35 | bellard | |
331 | 1d6bda35 | bellard | INLINE float64 float64_chs(float64 a) |
332 | 1d6bda35 | bellard | { |
333 | f090c9d4 | pbrook | return make_float64(float64_val(a) ^ 0x8000000000000000LL); |
334 | 1d6bda35 | bellard | } |
335 | 1d6bda35 | bellard | |
336 | f090c9d4 | pbrook | #define float64_zero make_float64(0) |
337 | f090c9d4 | pbrook | |
338 | 158142c2 | bellard | #ifdef FLOATX80
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339 | 158142c2 | bellard | |
340 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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341 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision conversion routines.
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342 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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343 | 158142c2 | bellard | int floatx80_to_int32( floatx80 STATUS_PARAM );
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344 | 158142c2 | bellard | int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
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345 | 158142c2 | bellard | int64_t floatx80_to_int64( floatx80 STATUS_PARAM ); |
346 | 158142c2 | bellard | int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); |
347 | 158142c2 | bellard | float32 floatx80_to_float32( floatx80 STATUS_PARAM ); |
348 | 158142c2 | bellard | float64 floatx80_to_float64( floatx80 STATUS_PARAM ); |
349 | 158142c2 | bellard | #ifdef FLOAT128
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350 | 158142c2 | bellard | float128 floatx80_to_float128( floatx80 STATUS_PARAM ); |
351 | 158142c2 | bellard | #endif
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352 | 158142c2 | bellard | |
353 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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354 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision operations.
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355 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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356 | 158142c2 | bellard | floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); |
357 | 158142c2 | bellard | floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); |
358 | 158142c2 | bellard | floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); |
359 | 158142c2 | bellard | floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); |
360 | 158142c2 | bellard | floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); |
361 | 158142c2 | bellard | floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); |
362 | 158142c2 | bellard | floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); |
363 | 750afe93 | bellard | int floatx80_eq( floatx80, floatx80 STATUS_PARAM );
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364 | 750afe93 | bellard | int floatx80_le( floatx80, floatx80 STATUS_PARAM );
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365 | 750afe93 | bellard | int floatx80_lt( floatx80, floatx80 STATUS_PARAM );
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366 | 750afe93 | bellard | int floatx80_eq_signaling( floatx80, floatx80 STATUS_PARAM );
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367 | 750afe93 | bellard | int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
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368 | 750afe93 | bellard | int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
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369 | 924b2c07 | ths | int floatx80_is_nan( floatx80 );
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370 | 750afe93 | bellard | int floatx80_is_signaling_nan( floatx80 );
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371 | 9ee6e8bb | pbrook | floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM );
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372 | 158142c2 | bellard | |
373 | 1d6bda35 | bellard | INLINE floatx80 floatx80_abs(floatx80 a) |
374 | 1d6bda35 | bellard | { |
375 | 1d6bda35 | bellard | a.high &= 0x7fff;
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376 | 1d6bda35 | bellard | return a;
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377 | 1d6bda35 | bellard | } |
378 | 1d6bda35 | bellard | |
379 | 1d6bda35 | bellard | INLINE floatx80 floatx80_chs(floatx80 a) |
380 | 1d6bda35 | bellard | { |
381 | 1d6bda35 | bellard | a.high ^= 0x8000;
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382 | 1d6bda35 | bellard | return a;
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383 | 1d6bda35 | bellard | } |
384 | 1d6bda35 | bellard | |
385 | 158142c2 | bellard | #endif
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386 | 158142c2 | bellard | |
387 | 158142c2 | bellard | #ifdef FLOAT128
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388 | 158142c2 | bellard | |
389 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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390 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision conversion routines.
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391 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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392 | 158142c2 | bellard | int float128_to_int32( float128 STATUS_PARAM );
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393 | 158142c2 | bellard | int float128_to_int32_round_to_zero( float128 STATUS_PARAM );
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394 | 158142c2 | bellard | int64_t float128_to_int64( float128 STATUS_PARAM ); |
395 | 158142c2 | bellard | int64_t float128_to_int64_round_to_zero( float128 STATUS_PARAM ); |
396 | 158142c2 | bellard | float32 float128_to_float32( float128 STATUS_PARAM ); |
397 | 158142c2 | bellard | float64 float128_to_float64( float128 STATUS_PARAM ); |
398 | 158142c2 | bellard | #ifdef FLOATX80
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399 | 158142c2 | bellard | floatx80 float128_to_floatx80( float128 STATUS_PARAM ); |
400 | 158142c2 | bellard | #endif
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401 | 158142c2 | bellard | |
402 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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403 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision operations.
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404 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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405 | 158142c2 | bellard | float128 float128_round_to_int( float128 STATUS_PARAM ); |
406 | 158142c2 | bellard | float128 float128_add( float128, float128 STATUS_PARAM ); |
407 | 158142c2 | bellard | float128 float128_sub( float128, float128 STATUS_PARAM ); |
408 | 158142c2 | bellard | float128 float128_mul( float128, float128 STATUS_PARAM ); |
409 | 158142c2 | bellard | float128 float128_div( float128, float128 STATUS_PARAM ); |
410 | 158142c2 | bellard | float128 float128_rem( float128, float128 STATUS_PARAM ); |
411 | 158142c2 | bellard | float128 float128_sqrt( float128 STATUS_PARAM ); |
412 | 750afe93 | bellard | int float128_eq( float128, float128 STATUS_PARAM );
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413 | 750afe93 | bellard | int float128_le( float128, float128 STATUS_PARAM );
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414 | 750afe93 | bellard | int float128_lt( float128, float128 STATUS_PARAM );
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415 | 750afe93 | bellard | int float128_eq_signaling( float128, float128 STATUS_PARAM );
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416 | 750afe93 | bellard | int float128_le_quiet( float128, float128 STATUS_PARAM );
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417 | 750afe93 | bellard | int float128_lt_quiet( float128, float128 STATUS_PARAM );
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418 | 1f587329 | blueswir1 | int float128_compare( float128, float128 STATUS_PARAM );
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419 | 1f587329 | blueswir1 | int float128_compare_quiet( float128, float128 STATUS_PARAM );
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420 | 924b2c07 | ths | int float128_is_nan( float128 );
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421 | 750afe93 | bellard | int float128_is_signaling_nan( float128 );
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422 | 9ee6e8bb | pbrook | float128 float128_scalbn( float128, int STATUS_PARAM );
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423 | 158142c2 | bellard | |
424 | 1d6bda35 | bellard | INLINE float128 float128_abs(float128 a) |
425 | 1d6bda35 | bellard | { |
426 | 1d6bda35 | bellard | a.high &= 0x7fffffffffffffffLL;
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427 | 1d6bda35 | bellard | return a;
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428 | 1d6bda35 | bellard | } |
429 | 1d6bda35 | bellard | |
430 | 1d6bda35 | bellard | INLINE float128 float128_chs(float128 a) |
431 | 1d6bda35 | bellard | { |
432 | 1d6bda35 | bellard | a.high ^= 0x8000000000000000LL;
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433 | 1d6bda35 | bellard | return a;
|
434 | 1d6bda35 | bellard | } |
435 | 1d6bda35 | bellard | |
436 | 158142c2 | bellard | #endif
|
437 | 158142c2 | bellard | |
438 | 158142c2 | bellard | #else /* CONFIG_SOFTFLOAT */ |
439 | 158142c2 | bellard | |
440 | 158142c2 | bellard | #include "softfloat-native.h" |
441 | 158142c2 | bellard | |
442 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
443 | 158142c2 | bellard | |
444 | 158142c2 | bellard | #endif /* !SOFTFLOAT_H */ |