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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 | b29fe3ed | malc | #ifndef _AIX
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54 | 158142c2 | bellard | typedef int uint16; |
55 | 158142c2 | bellard | typedef int int16; |
56 | b29fe3ed | malc | #endif
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57 | 158142c2 | bellard | typedef unsigned int uint32; |
58 | 158142c2 | bellard | typedef signed int int32; |
59 | 158142c2 | bellard | typedef uint64_t uint64;
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60 | 158142c2 | bellard | typedef int64_t int64;
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61 | 158142c2 | bellard | |
62 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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63 | 158142c2 | bellard | | Each of the following `typedef's defines a type that holds integers
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64 | 158142c2 | bellard | | of _exactly_ the number of bits specified. For instance, for most
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65 | 158142c2 | bellard | | implementation of C, `bits16' and `sbits16' should be `typedef'ed to
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66 | 158142c2 | bellard | | `unsigned short int' and `signed short int' (or `short int'), respectively.
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67 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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68 | 158142c2 | bellard | typedef uint8_t bits8;
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69 | 158142c2 | bellard | typedef int8_t sbits8;
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70 | 158142c2 | bellard | typedef uint16_t bits16;
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71 | 158142c2 | bellard | typedef int16_t sbits16;
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72 | 158142c2 | bellard | typedef uint32_t bits32;
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73 | 158142c2 | bellard | typedef int32_t sbits32;
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74 | 158142c2 | bellard | typedef uint64_t bits64;
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75 | 158142c2 | bellard | typedef int64_t sbits64;
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76 | 158142c2 | bellard | |
77 | 158142c2 | bellard | #define LIT64( a ) a##LL |
78 | 158142c2 | bellard | #define INLINE static inline |
79 | 158142c2 | bellard | |
80 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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81 | 158142c2 | bellard | | The macro `FLOATX80' must be defined to enable the extended double-precision
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82 | 158142c2 | bellard | | floating-point format `floatx80'. If this macro is not defined, the
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83 | 158142c2 | bellard | | `floatx80' type will not be defined, and none of the functions that either
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84 | 158142c2 | bellard | | input or output the `floatx80' type will be defined. The same applies to
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85 | 158142c2 | bellard | | the `FLOAT128' macro and the quadruple-precision format `float128'.
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86 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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87 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
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88 | 158142c2 | bellard | /* bit exact soft float support */
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89 | 158142c2 | bellard | #define FLOATX80
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90 | 158142c2 | bellard | #define FLOAT128
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91 | 158142c2 | bellard | #else
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92 | 158142c2 | bellard | /* native float support */
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93 | 158142c2 | bellard | #if (defined(__i386__) || defined(__x86_64__)) && !defined(_BSD)
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94 | 158142c2 | bellard | #define FLOATX80
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95 | 158142c2 | bellard | #endif
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96 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
97 | 158142c2 | bellard | |
98 | 158142c2 | bellard | #define STATUS_PARAM , float_status *status
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99 | 158142c2 | bellard | #define STATUS(field) status->field
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100 | 158142c2 | bellard | #define STATUS_VAR , status
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101 | 158142c2 | bellard | |
102 | 1d6bda35 | bellard | /*----------------------------------------------------------------------------
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103 | 1d6bda35 | bellard | | Software IEC/IEEE floating-point ordering relations
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104 | 1d6bda35 | bellard | *----------------------------------------------------------------------------*/
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105 | 1d6bda35 | bellard | enum {
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106 | 1d6bda35 | bellard | float_relation_less = -1,
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107 | 1d6bda35 | bellard | float_relation_equal = 0,
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108 | 1d6bda35 | bellard | float_relation_greater = 1,
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109 | 1d6bda35 | bellard | float_relation_unordered = 2
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110 | 1d6bda35 | bellard | }; |
111 | 1d6bda35 | bellard | |
112 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
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113 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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114 | 158142c2 | bellard | | Software IEC/IEEE floating-point types.
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115 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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116 | f090c9d4 | pbrook | /* Use structures for soft-float types. This prevents accidentally mixing
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117 | f090c9d4 | pbrook | them with native int/float types. A sufficiently clever compiler and
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118 | f090c9d4 | pbrook | sane ABI should be able to see though these structs. However
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119 | f090c9d4 | pbrook | x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */
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120 | f090c9d4 | pbrook | //#define USE_SOFTFLOAT_STRUCT_TYPES
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121 | f090c9d4 | pbrook | #ifdef USE_SOFTFLOAT_STRUCT_TYPES
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122 | f090c9d4 | pbrook | typedef struct { |
123 | f090c9d4 | pbrook | uint32_t v; |
124 | f090c9d4 | pbrook | } float32; |
125 | f090c9d4 | pbrook | /* The cast ensures an error if the wrong type is passed. */
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126 | f090c9d4 | pbrook | #define float32_val(x) (((float32)(x)).v)
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127 | f090c9d4 | pbrook | #define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; })
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128 | f090c9d4 | pbrook | typedef struct { |
129 | f090c9d4 | pbrook | uint64_t v; |
130 | f090c9d4 | pbrook | } float64; |
131 | f090c9d4 | pbrook | #define float64_val(x) (((float64)(x)).v)
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132 | f090c9d4 | pbrook | #define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; })
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133 | f090c9d4 | pbrook | #else
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134 | 158142c2 | bellard | typedef uint32_t float32;
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135 | 158142c2 | bellard | typedef uint64_t float64;
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136 | f090c9d4 | pbrook | #define float32_val(x) (x)
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137 | f090c9d4 | pbrook | #define float64_val(x) (x)
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138 | f090c9d4 | pbrook | #define make_float32(x) (x)
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139 | f090c9d4 | pbrook | #define make_float64(x) (x)
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140 | f090c9d4 | pbrook | #endif
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141 | 158142c2 | bellard | #ifdef FLOATX80
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142 | 158142c2 | bellard | typedef struct { |
143 | 158142c2 | bellard | uint64_t low; |
144 | 158142c2 | bellard | uint16_t high; |
145 | 158142c2 | bellard | } floatx80; |
146 | 158142c2 | bellard | #endif
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147 | 158142c2 | bellard | #ifdef FLOAT128
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148 | 158142c2 | bellard | typedef struct { |
149 | 158142c2 | bellard | #ifdef WORDS_BIGENDIAN
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150 | 158142c2 | bellard | uint64_t high, low; |
151 | 158142c2 | bellard | #else
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152 | 158142c2 | bellard | uint64_t low, high; |
153 | 158142c2 | bellard | #endif
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154 | 158142c2 | bellard | } float128; |
155 | 158142c2 | bellard | #endif
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156 | 158142c2 | bellard | |
157 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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158 | 158142c2 | bellard | | Software IEC/IEEE floating-point underflow tininess-detection mode.
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159 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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160 | 158142c2 | bellard | enum {
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161 | 158142c2 | bellard | float_tininess_after_rounding = 0,
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162 | 158142c2 | bellard | float_tininess_before_rounding = 1
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163 | 158142c2 | bellard | }; |
164 | 158142c2 | bellard | |
165 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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166 | 158142c2 | bellard | | Software IEC/IEEE floating-point rounding mode.
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167 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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168 | 158142c2 | bellard | enum {
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169 | 158142c2 | bellard | float_round_nearest_even = 0,
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170 | 158142c2 | bellard | float_round_down = 1,
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171 | 158142c2 | bellard | float_round_up = 2,
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172 | 158142c2 | bellard | float_round_to_zero = 3
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173 | 158142c2 | bellard | }; |
174 | 158142c2 | bellard | |
175 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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176 | 158142c2 | bellard | | Software IEC/IEEE floating-point exception flags.
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177 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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178 | 158142c2 | bellard | enum {
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179 | 158142c2 | bellard | float_flag_invalid = 1,
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180 | 158142c2 | bellard | float_flag_divbyzero = 4,
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181 | 158142c2 | bellard | float_flag_overflow = 8,
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182 | 158142c2 | bellard | float_flag_underflow = 16,
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183 | 158142c2 | bellard | float_flag_inexact = 32
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184 | 158142c2 | bellard | }; |
185 | 158142c2 | bellard | |
186 | 158142c2 | bellard | typedef struct float_status { |
187 | 158142c2 | bellard | signed char float_detect_tininess; |
188 | 158142c2 | bellard | signed char float_rounding_mode; |
189 | 158142c2 | bellard | signed char float_exception_flags; |
190 | 158142c2 | bellard | #ifdef FLOATX80
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191 | 158142c2 | bellard | signed char floatx80_rounding_precision; |
192 | 158142c2 | bellard | #endif
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193 | fe76d976 | pbrook | flag flush_to_zero; |
194 | 5c7908ed | pbrook | flag default_nan_mode; |
195 | 158142c2 | bellard | } float_status; |
196 | 158142c2 | bellard | |
197 | 158142c2 | bellard | void set_float_rounding_mode(int val STATUS_PARAM); |
198 | 1d6bda35 | bellard | void set_float_exception_flags(int val STATUS_PARAM); |
199 | fe76d976 | pbrook | INLINE void set_flush_to_zero(flag val STATUS_PARAM)
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200 | fe76d976 | pbrook | { |
201 | fe76d976 | pbrook | STATUS(flush_to_zero) = val; |
202 | fe76d976 | pbrook | } |
203 | 5c7908ed | pbrook | INLINE void set_default_nan_mode(flag val STATUS_PARAM)
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204 | 5c7908ed | pbrook | { |
205 | 5c7908ed | pbrook | STATUS(default_nan_mode) = val; |
206 | 5c7908ed | pbrook | } |
207 | 1d6bda35 | bellard | INLINE int get_float_exception_flags(float_status *status)
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208 | 1d6bda35 | bellard | { |
209 | 1d6bda35 | bellard | return STATUS(float_exception_flags);
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210 | 1d6bda35 | bellard | } |
211 | 158142c2 | bellard | #ifdef FLOATX80
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212 | 158142c2 | bellard | void set_floatx80_rounding_precision(int val STATUS_PARAM); |
213 | 158142c2 | bellard | #endif
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214 | 158142c2 | bellard | |
215 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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216 | 158142c2 | bellard | | Routine to raise any or all of the software IEC/IEEE floating-point
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217 | 158142c2 | bellard | | exception flags.
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218 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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219 | ec530c81 | bellard | void float_raise( int8 flags STATUS_PARAM);
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220 | 158142c2 | bellard | |
221 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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222 | 158142c2 | bellard | | Software IEC/IEEE integer-to-floating-point conversion routines.
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223 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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224 | 158142c2 | bellard | float32 int32_to_float32( int STATUS_PARAM );
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225 | 158142c2 | bellard | float64 int32_to_float64( int STATUS_PARAM );
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226 | 1d6bda35 | bellard | float32 uint32_to_float32( unsigned int STATUS_PARAM ); |
227 | 1d6bda35 | bellard | float64 uint32_to_float64( unsigned int STATUS_PARAM ); |
228 | 158142c2 | bellard | #ifdef FLOATX80
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229 | 158142c2 | bellard | floatx80 int32_to_floatx80( int STATUS_PARAM );
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230 | 158142c2 | bellard | #endif
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231 | 158142c2 | bellard | #ifdef FLOAT128
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232 | 158142c2 | bellard | float128 int32_to_float128( int STATUS_PARAM );
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233 | 158142c2 | bellard | #endif
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234 | 158142c2 | bellard | float32 int64_to_float32( int64_t STATUS_PARAM ); |
235 | 75d62a58 | j_mayer | float32 uint64_to_float32( uint64_t STATUS_PARAM ); |
236 | 158142c2 | bellard | float64 int64_to_float64( int64_t STATUS_PARAM ); |
237 | 75d62a58 | j_mayer | float64 uint64_to_float64( uint64_t STATUS_PARAM ); |
238 | 158142c2 | bellard | #ifdef FLOATX80
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239 | 158142c2 | bellard | floatx80 int64_to_floatx80( int64_t STATUS_PARAM ); |
240 | 158142c2 | bellard | #endif
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241 | 158142c2 | bellard | #ifdef FLOAT128
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242 | 158142c2 | bellard | float128 int64_to_float128( int64_t STATUS_PARAM ); |
243 | 158142c2 | bellard | #endif
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244 | 158142c2 | bellard | |
245 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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246 | 158142c2 | bellard | | Software IEC/IEEE single-precision conversion routines.
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247 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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248 | 158142c2 | bellard | int float32_to_int32( float32 STATUS_PARAM );
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249 | 158142c2 | bellard | int float32_to_int32_round_to_zero( float32 STATUS_PARAM );
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250 | 1d6bda35 | bellard | unsigned int float32_to_uint32( float32 STATUS_PARAM ); |
251 | 1d6bda35 | bellard | unsigned int float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); |
252 | 158142c2 | bellard | int64_t float32_to_int64( float32 STATUS_PARAM ); |
253 | 158142c2 | bellard | int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM ); |
254 | 158142c2 | bellard | float64 float32_to_float64( float32 STATUS_PARAM ); |
255 | 158142c2 | bellard | #ifdef FLOATX80
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256 | 158142c2 | bellard | floatx80 float32_to_floatx80( float32 STATUS_PARAM ); |
257 | 158142c2 | bellard | #endif
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258 | 158142c2 | bellard | #ifdef FLOAT128
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259 | 158142c2 | bellard | float128 float32_to_float128( float32 STATUS_PARAM ); |
260 | 158142c2 | bellard | #endif
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261 | 158142c2 | bellard | |
262 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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263 | 158142c2 | bellard | | Software IEC/IEEE single-precision operations.
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264 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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265 | 158142c2 | bellard | float32 float32_round_to_int( float32 STATUS_PARAM ); |
266 | 158142c2 | bellard | float32 float32_add( float32, float32 STATUS_PARAM ); |
267 | 158142c2 | bellard | float32 float32_sub( float32, float32 STATUS_PARAM ); |
268 | 158142c2 | bellard | float32 float32_mul( float32, float32 STATUS_PARAM ); |
269 | 158142c2 | bellard | float32 float32_div( float32, float32 STATUS_PARAM ); |
270 | 158142c2 | bellard | float32 float32_rem( float32, float32 STATUS_PARAM ); |
271 | 158142c2 | bellard | float32 float32_sqrt( float32 STATUS_PARAM ); |
272 | 374dfc33 | aurel32 | float32 float32_log2( float32 STATUS_PARAM ); |
273 | 750afe93 | bellard | int float32_eq( float32, float32 STATUS_PARAM );
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274 | 750afe93 | bellard | int float32_le( float32, float32 STATUS_PARAM );
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275 | 750afe93 | bellard | int float32_lt( float32, float32 STATUS_PARAM );
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276 | 750afe93 | bellard | int float32_eq_signaling( float32, float32 STATUS_PARAM );
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277 | 750afe93 | bellard | int float32_le_quiet( float32, float32 STATUS_PARAM );
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278 | 750afe93 | bellard | int float32_lt_quiet( float32, float32 STATUS_PARAM );
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279 | 750afe93 | bellard | int float32_compare( float32, float32 STATUS_PARAM );
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280 | 750afe93 | bellard | int float32_compare_quiet( float32, float32 STATUS_PARAM );
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281 | 924b2c07 | ths | int float32_is_nan( float32 );
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282 | 750afe93 | bellard | int float32_is_signaling_nan( float32 );
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283 | 9ee6e8bb | pbrook | float32 float32_scalbn( float32, int STATUS_PARAM );
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284 | 158142c2 | bellard | |
285 | 1d6bda35 | bellard | INLINE float32 float32_abs(float32 a) |
286 | 1d6bda35 | bellard | { |
287 | f090c9d4 | pbrook | return make_float32(float32_val(a) & 0x7fffffff); |
288 | 1d6bda35 | bellard | } |
289 | 1d6bda35 | bellard | |
290 | 1d6bda35 | bellard | INLINE float32 float32_chs(float32 a) |
291 | 1d6bda35 | bellard | { |
292 | f090c9d4 | pbrook | return make_float32(float32_val(a) ^ 0x80000000); |
293 | 1d6bda35 | bellard | } |
294 | 1d6bda35 | bellard | |
295 | c52ab6f5 | aurel32 | INLINE int float32_is_infinity(float32 a)
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296 | c52ab6f5 | aurel32 | { |
297 | dadd71a7 | aurel32 | return (float32_val(a) & 0x7fffffff) == 0x7f800000; |
298 | c52ab6f5 | aurel32 | } |
299 | c52ab6f5 | aurel32 | |
300 | c52ab6f5 | aurel32 | INLINE int float32_is_neg(float32 a)
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301 | c52ab6f5 | aurel32 | { |
302 | c52ab6f5 | aurel32 | return float32_val(a) >> 31; |
303 | c52ab6f5 | aurel32 | } |
304 | c52ab6f5 | aurel32 | |
305 | c52ab6f5 | aurel32 | INLINE int float32_is_zero(float32 a)
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306 | c52ab6f5 | aurel32 | { |
307 | c52ab6f5 | aurel32 | return (float32_val(a) & 0x7fffffff) == 0; |
308 | c52ab6f5 | aurel32 | } |
309 | c52ab6f5 | aurel32 | |
310 | f090c9d4 | pbrook | #define float32_zero make_float32(0) |
311 | 196cfc89 | aurel32 | #define float32_one make_float32(0x3f800000) |
312 | f090c9d4 | pbrook | |
313 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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314 | 158142c2 | bellard | | Software IEC/IEEE double-precision conversion routines.
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315 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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316 | 158142c2 | bellard | int float64_to_int32( float64 STATUS_PARAM );
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317 | 158142c2 | bellard | int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
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318 | 1d6bda35 | bellard | unsigned int float64_to_uint32( float64 STATUS_PARAM ); |
319 | 1d6bda35 | bellard | unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); |
320 | 158142c2 | bellard | int64_t float64_to_int64( float64 STATUS_PARAM ); |
321 | 158142c2 | bellard | int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM ); |
322 | 75d62a58 | j_mayer | uint64_t float64_to_uint64 (float64 a STATUS_PARAM); |
323 | 75d62a58 | j_mayer | uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM); |
324 | 158142c2 | bellard | float32 float64_to_float32( float64 STATUS_PARAM ); |
325 | 158142c2 | bellard | #ifdef FLOATX80
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326 | 158142c2 | bellard | floatx80 float64_to_floatx80( float64 STATUS_PARAM ); |
327 | 158142c2 | bellard | #endif
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328 | 158142c2 | bellard | #ifdef FLOAT128
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329 | 158142c2 | bellard | float128 float64_to_float128( float64 STATUS_PARAM ); |
330 | 158142c2 | bellard | #endif
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331 | 158142c2 | bellard | |
332 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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333 | 158142c2 | bellard | | Software IEC/IEEE double-precision operations.
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334 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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335 | 158142c2 | bellard | float64 float64_round_to_int( float64 STATUS_PARAM ); |
336 | e6e5906b | pbrook | float64 float64_trunc_to_int( float64 STATUS_PARAM ); |
337 | 158142c2 | bellard | float64 float64_add( float64, float64 STATUS_PARAM ); |
338 | 158142c2 | bellard | float64 float64_sub( float64, float64 STATUS_PARAM ); |
339 | 158142c2 | bellard | float64 float64_mul( float64, float64 STATUS_PARAM ); |
340 | 158142c2 | bellard | float64 float64_div( float64, float64 STATUS_PARAM ); |
341 | 158142c2 | bellard | float64 float64_rem( float64, float64 STATUS_PARAM ); |
342 | 158142c2 | bellard | float64 float64_sqrt( float64 STATUS_PARAM ); |
343 | 374dfc33 | aurel32 | float64 float64_log2( float64 STATUS_PARAM ); |
344 | 750afe93 | bellard | int float64_eq( float64, float64 STATUS_PARAM );
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345 | 750afe93 | bellard | int float64_le( float64, float64 STATUS_PARAM );
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346 | 750afe93 | bellard | int float64_lt( float64, float64 STATUS_PARAM );
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347 | 750afe93 | bellard | int float64_eq_signaling( float64, float64 STATUS_PARAM );
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348 | 750afe93 | bellard | int float64_le_quiet( float64, float64 STATUS_PARAM );
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349 | 750afe93 | bellard | int float64_lt_quiet( float64, float64 STATUS_PARAM );
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350 | 750afe93 | bellard | int float64_compare( float64, float64 STATUS_PARAM );
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351 | 750afe93 | bellard | int float64_compare_quiet( float64, float64 STATUS_PARAM );
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352 | 924b2c07 | ths | int float64_is_nan( float64 a );
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353 | 750afe93 | bellard | int float64_is_signaling_nan( float64 );
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354 | 9ee6e8bb | pbrook | float64 float64_scalbn( float64, int STATUS_PARAM );
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355 | 158142c2 | bellard | |
356 | 1d6bda35 | bellard | INLINE float64 float64_abs(float64 a) |
357 | 1d6bda35 | bellard | { |
358 | f090c9d4 | pbrook | return make_float64(float64_val(a) & 0x7fffffffffffffffLL); |
359 | 1d6bda35 | bellard | } |
360 | 1d6bda35 | bellard | |
361 | 1d6bda35 | bellard | INLINE float64 float64_chs(float64 a) |
362 | 1d6bda35 | bellard | { |
363 | f090c9d4 | pbrook | return make_float64(float64_val(a) ^ 0x8000000000000000LL); |
364 | 1d6bda35 | bellard | } |
365 | 1d6bda35 | bellard | |
366 | c52ab6f5 | aurel32 | INLINE int float64_is_infinity(float64 a)
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367 | c52ab6f5 | aurel32 | { |
368 | c52ab6f5 | aurel32 | return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; |
369 | c52ab6f5 | aurel32 | } |
370 | c52ab6f5 | aurel32 | |
371 | c52ab6f5 | aurel32 | INLINE int float64_is_neg(float64 a)
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372 | c52ab6f5 | aurel32 | { |
373 | c52ab6f5 | aurel32 | return float64_val(a) >> 63; |
374 | c52ab6f5 | aurel32 | } |
375 | c52ab6f5 | aurel32 | |
376 | c52ab6f5 | aurel32 | INLINE int float64_is_zero(float64 a)
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377 | c52ab6f5 | aurel32 | { |
378 | c52ab6f5 | aurel32 | return (float64_val(a) & 0x7fffffffffffffffLL) == 0; |
379 | c52ab6f5 | aurel32 | } |
380 | c52ab6f5 | aurel32 | |
381 | f090c9d4 | pbrook | #define float64_zero make_float64(0) |
382 | 196cfc89 | aurel32 | #define float64_one make_float64(0x3ff0000000000000LL) |
383 | f090c9d4 | pbrook | |
384 | 158142c2 | bellard | #ifdef FLOATX80
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385 | 158142c2 | bellard | |
386 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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387 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision conversion routines.
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388 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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389 | 158142c2 | bellard | int floatx80_to_int32( floatx80 STATUS_PARAM );
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390 | 158142c2 | bellard | int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
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391 | 158142c2 | bellard | int64_t floatx80_to_int64( floatx80 STATUS_PARAM ); |
392 | 158142c2 | bellard | int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); |
393 | 158142c2 | bellard | float32 floatx80_to_float32( floatx80 STATUS_PARAM ); |
394 | 158142c2 | bellard | float64 floatx80_to_float64( floatx80 STATUS_PARAM ); |
395 | 158142c2 | bellard | #ifdef FLOAT128
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396 | 158142c2 | bellard | float128 floatx80_to_float128( floatx80 STATUS_PARAM ); |
397 | 158142c2 | bellard | #endif
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398 | 158142c2 | bellard | |
399 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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400 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision operations.
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401 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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402 | 158142c2 | bellard | floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); |
403 | 158142c2 | bellard | floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); |
404 | 158142c2 | bellard | floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); |
405 | 158142c2 | bellard | floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); |
406 | 158142c2 | bellard | floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); |
407 | 158142c2 | bellard | floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); |
408 | 158142c2 | bellard | floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); |
409 | 750afe93 | bellard | int floatx80_eq( floatx80, floatx80 STATUS_PARAM );
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410 | 750afe93 | bellard | int floatx80_le( floatx80, floatx80 STATUS_PARAM );
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411 | 750afe93 | bellard | int floatx80_lt( floatx80, floatx80 STATUS_PARAM );
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412 | 750afe93 | bellard | int floatx80_eq_signaling( floatx80, floatx80 STATUS_PARAM );
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413 | 750afe93 | bellard | int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
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414 | 750afe93 | bellard | int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
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415 | 924b2c07 | ths | int floatx80_is_nan( floatx80 );
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416 | 750afe93 | bellard | int floatx80_is_signaling_nan( floatx80 );
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417 | 9ee6e8bb | pbrook | floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM );
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418 | 158142c2 | bellard | |
419 | 1d6bda35 | bellard | INLINE floatx80 floatx80_abs(floatx80 a) |
420 | 1d6bda35 | bellard | { |
421 | 1d6bda35 | bellard | a.high &= 0x7fff;
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422 | 1d6bda35 | bellard | return a;
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423 | 1d6bda35 | bellard | } |
424 | 1d6bda35 | bellard | |
425 | 1d6bda35 | bellard | INLINE floatx80 floatx80_chs(floatx80 a) |
426 | 1d6bda35 | bellard | { |
427 | 1d6bda35 | bellard | a.high ^= 0x8000;
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428 | 1d6bda35 | bellard | return a;
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429 | 1d6bda35 | bellard | } |
430 | 1d6bda35 | bellard | |
431 | c52ab6f5 | aurel32 | INLINE int floatx80_is_infinity(floatx80 a)
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432 | c52ab6f5 | aurel32 | { |
433 | c52ab6f5 | aurel32 | return (a.high & 0x7fff) == 0x7fff && a.low == 0; |
434 | c52ab6f5 | aurel32 | } |
435 | c52ab6f5 | aurel32 | |
436 | c52ab6f5 | aurel32 | INLINE int floatx80_is_neg(floatx80 a)
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437 | c52ab6f5 | aurel32 | { |
438 | c52ab6f5 | aurel32 | return a.high >> 15; |
439 | c52ab6f5 | aurel32 | } |
440 | c52ab6f5 | aurel32 | |
441 | c52ab6f5 | aurel32 | INLINE int floatx80_is_zero(floatx80 a)
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442 | c52ab6f5 | aurel32 | { |
443 | c52ab6f5 | aurel32 | return (a.high & 0x7fff) == 0 && a.low == 0; |
444 | c52ab6f5 | aurel32 | } |
445 | c52ab6f5 | aurel32 | |
446 | 158142c2 | bellard | #endif
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447 | 158142c2 | bellard | |
448 | 158142c2 | bellard | #ifdef FLOAT128
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449 | 158142c2 | bellard | |
450 | 158142c2 | bellard | /*----------------------------------------------------------------------------
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451 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision conversion routines.
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452 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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453 | 158142c2 | bellard | int float128_to_int32( float128 STATUS_PARAM );
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454 | 158142c2 | bellard | int float128_to_int32_round_to_zero( float128 STATUS_PARAM );
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455 | 158142c2 | bellard | int64_t float128_to_int64( float128 STATUS_PARAM ); |
456 | 158142c2 | bellard | int64_t float128_to_int64_round_to_zero( float128 STATUS_PARAM ); |
457 | 158142c2 | bellard | float32 float128_to_float32( float128 STATUS_PARAM ); |
458 | 158142c2 | bellard | float64 float128_to_float64( float128 STATUS_PARAM ); |
459 | 158142c2 | bellard | #ifdef FLOATX80
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460 | 158142c2 | bellard | floatx80 float128_to_floatx80( float128 STATUS_PARAM ); |
461 | 158142c2 | bellard | #endif
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462 | 158142c2 | bellard | |
463 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
464 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision operations.
|
465 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
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466 | 158142c2 | bellard | float128 float128_round_to_int( float128 STATUS_PARAM ); |
467 | 158142c2 | bellard | float128 float128_add( float128, float128 STATUS_PARAM ); |
468 | 158142c2 | bellard | float128 float128_sub( float128, float128 STATUS_PARAM ); |
469 | 158142c2 | bellard | float128 float128_mul( float128, float128 STATUS_PARAM ); |
470 | 158142c2 | bellard | float128 float128_div( float128, float128 STATUS_PARAM ); |
471 | 158142c2 | bellard | float128 float128_rem( float128, float128 STATUS_PARAM ); |
472 | 158142c2 | bellard | float128 float128_sqrt( float128 STATUS_PARAM ); |
473 | 750afe93 | bellard | int float128_eq( float128, float128 STATUS_PARAM );
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474 | 750afe93 | bellard | int float128_le( float128, float128 STATUS_PARAM );
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475 | 750afe93 | bellard | int float128_lt( float128, float128 STATUS_PARAM );
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476 | 750afe93 | bellard | int float128_eq_signaling( float128, float128 STATUS_PARAM );
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477 | 750afe93 | bellard | int float128_le_quiet( float128, float128 STATUS_PARAM );
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478 | 750afe93 | bellard | int float128_lt_quiet( float128, float128 STATUS_PARAM );
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479 | 1f587329 | blueswir1 | int float128_compare( float128, float128 STATUS_PARAM );
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480 | 1f587329 | blueswir1 | int float128_compare_quiet( float128, float128 STATUS_PARAM );
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481 | 924b2c07 | ths | int float128_is_nan( float128 );
|
482 | 750afe93 | bellard | int float128_is_signaling_nan( float128 );
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483 | 9ee6e8bb | pbrook | float128 float128_scalbn( float128, int STATUS_PARAM );
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484 | 158142c2 | bellard | |
485 | 1d6bda35 | bellard | INLINE float128 float128_abs(float128 a) |
486 | 1d6bda35 | bellard | { |
487 | 1d6bda35 | bellard | a.high &= 0x7fffffffffffffffLL;
|
488 | 1d6bda35 | bellard | return a;
|
489 | 1d6bda35 | bellard | } |
490 | 1d6bda35 | bellard | |
491 | 1d6bda35 | bellard | INLINE float128 float128_chs(float128 a) |
492 | 1d6bda35 | bellard | { |
493 | 1d6bda35 | bellard | a.high ^= 0x8000000000000000LL;
|
494 | 1d6bda35 | bellard | return a;
|
495 | 1d6bda35 | bellard | } |
496 | 1d6bda35 | bellard | |
497 | c52ab6f5 | aurel32 | INLINE int float128_is_infinity(float128 a)
|
498 | c52ab6f5 | aurel32 | { |
499 | c52ab6f5 | aurel32 | return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; |
500 | c52ab6f5 | aurel32 | } |
501 | c52ab6f5 | aurel32 | |
502 | c52ab6f5 | aurel32 | INLINE int float128_is_neg(float128 a)
|
503 | c52ab6f5 | aurel32 | { |
504 | c52ab6f5 | aurel32 | return a.high >> 63; |
505 | c52ab6f5 | aurel32 | } |
506 | c52ab6f5 | aurel32 | |
507 | c52ab6f5 | aurel32 | INLINE int float128_is_zero(float128 a)
|
508 | c52ab6f5 | aurel32 | { |
509 | c52ab6f5 | aurel32 | return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; |
510 | c52ab6f5 | aurel32 | } |
511 | c52ab6f5 | aurel32 | |
512 | 158142c2 | bellard | #endif
|
513 | 158142c2 | bellard | |
514 | 158142c2 | bellard | #else /* CONFIG_SOFTFLOAT */ |
515 | 158142c2 | bellard | |
516 | 158142c2 | bellard | #include "softfloat-native.h" |
517 | 158142c2 | bellard | |
518 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
519 | 158142c2 | bellard | |
520 | 158142c2 | bellard | #endif /* !SOFTFLOAT_H */ |