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1693 | serge | 1 | #ifndef __IEEE_BIG_ENDIAN |
2 | #ifndef __IEEE_LITTLE_ENDIAN |
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3 | |||
4 | /* This file can define macros to choose variations of the IEEE float |
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5 | format: |
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6 | |||
7 | _FLT_LARGEST_EXPONENT_IS_NORMAL |
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8 | |||
9 | Defined if the float format uses the largest exponent for finite |
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10 | numbers rather than NaN and infinity representations. Such a |
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11 | format cannot represent NaNs or infinities at all, but it's FLT_MAX |
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12 | is twice the IEEE value. |
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13 | |||
14 | _FLT_NO_DENORMALS |
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15 | |||
16 | Defined if the float format does not support IEEE denormals. Every |
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17 | float with a zero exponent is taken to be a zero representation. |
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18 | |||
19 | ??? At the moment, there are no equivalent macros above for doubles and |
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20 | the macros are not fully supported by --enable-newlib-hw-fp. |
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21 | |||
22 | __IEEE_BIG_ENDIAN |
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23 | |||
24 | Defined if the float format is big endian. This is mutually exclusive |
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25 | with __IEEE_LITTLE_ENDIAN. |
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26 | |||
27 | __IEEE_LITTLE_ENDIAN |
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28 | |||
29 | Defined if the float format is little endian. This is mutually exclusive |
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30 | with __IEEE_BIG_ENDIAN. |
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31 | |||
32 | Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a |
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33 | platform or error will occur. |
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34 | |||
35 | __IEEE_BYTES_LITTLE_ENDIAN |
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36 | |||
37 | This flag is used in conjunction with __IEEE_BIG_ENDIAN to describe a situation |
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38 | whereby multiple words of an IEEE floating point are in big endian order, but the |
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39 | words themselves are little endian with respect to the bytes. |
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40 | |||
41 | _DOUBLE_IS_32BITS |
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42 | |||
43 | This is used on platforms that support double by using the 32-bit IEEE |
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44 | float type. |
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45 | |||
46 | _FLOAT_ARG |
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47 | |||
48 | This represents what type a float arg is passed as. It is used when the type is |
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49 | not promoted to double. |
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50 | |||
51 | */ |
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52 | |||
53 | #if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__) |
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54 | /* ARM traditionally used big-endian words; and within those words the |
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55 | byte ordering was big or little endian depending upon the target. |
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56 | Modern floating-point formats are naturally ordered; in this case |
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57 | __VFP_FP__ will be defined, even if soft-float. */ |
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58 | #ifdef __VFP_FP__ |
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59 | # ifdef __ARMEL__ |
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60 | # define __IEEE_LITTLE_ENDIAN |
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61 | # else |
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62 | # define __IEEE_BIG_ENDIAN |
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63 | # endif |
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64 | #else |
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65 | # define __IEEE_BIG_ENDIAN |
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66 | # ifdef __ARMEL__ |
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67 | # define __IEEE_BYTES_LITTLE_ENDIAN |
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68 | # endif |
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69 | #endif |
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70 | #endif |
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71 | |||
72 | #ifdef __hppa__ |
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73 | #define __IEEE_BIG_ENDIAN |
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74 | #endif |
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75 | |||
76 | #ifdef __SPU__ |
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77 | #define __IEEE_BIG_ENDIAN |
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78 | |||
79 | #define isfinite(__y) \ |
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80 | (__extension__ ({int __cy; \ |
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81 | (sizeof (__y) == sizeof (float)) ? (1) : \ |
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82 | (__cy = fpclassify(__y)) != FP_INFINITE && __cy != FP_NAN;})) |
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83 | |||
84 | #define isinf(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isinfd(__x)) |
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85 | #define isnan(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isnand(__x)) |
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86 | |||
87 | /* |
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88 | * Macros for use in ieeefp.h. We can't just define the real ones here |
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89 | * (like those above) as we have name space issues when this is *not* |
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90 | * included via generic the ieeefp.h. |
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91 | */ |
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92 | #define __ieeefp_isnanf(x) 0 |
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93 | #define __ieeefp_isinff(x) 0 |
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94 | #define __ieeefp_finitef(x) 1 |
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95 | #endif |
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96 | |||
97 | #ifdef __sparc__ |
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98 | #ifdef __LITTLE_ENDIAN_DATA__ |
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99 | #define __IEEE_LITTLE_ENDIAN |
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100 | #else |
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101 | #define __IEEE_BIG_ENDIAN |
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102 | #endif |
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103 | #endif |
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104 | |||
105 | #if defined(__m68k__) || defined(__mc68000__) |
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106 | #define __IEEE_BIG_ENDIAN |
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107 | #endif |
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108 | |||
109 | #if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__) |
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110 | #define __IEEE_BIG_ENDIAN |
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111 | #ifdef __HAVE_SHORT_DOUBLE__ |
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112 | # define _DOUBLE_IS_32BITS |
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113 | #endif |
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114 | #endif |
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115 | |||
116 | #if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__) || defined (__H8500__) || defined (__H8300SX__) |
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117 | #define __IEEE_BIG_ENDIAN |
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118 | #define _FLOAT_ARG float |
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119 | #define _DOUBLE_IS_32BITS |
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120 | #endif |
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121 | |||
122 | #if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__) |
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123 | #define __IEEE_LITTLE_ENDIAN |
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124 | #define _FLOAT_ARG float |
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125 | #define _DOUBLE_IS_32BITS |
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126 | #endif |
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127 | |||
128 | |||
129 | #ifdef __sh__ |
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130 | #ifdef __LITTLE_ENDIAN__ |
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131 | #define __IEEE_LITTLE_ENDIAN |
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132 | #else |
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133 | #define __IEEE_BIG_ENDIAN |
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134 | #endif |
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135 | #if defined(__SH2E__) || defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A_SINGLE_ONLY__) |
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136 | #define _DOUBLE_IS_32BITS |
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137 | #endif |
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138 | #endif |
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139 | |||
140 | #ifdef _AM29K |
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141 | #define __IEEE_BIG_ENDIAN |
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142 | #endif |
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143 | |||
144 | #ifdef _WIN32 |
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145 | #define __IEEE_LITTLE_ENDIAN |
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146 | #endif |
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147 | |||
148 | #ifdef __i386__ |
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149 | #define __IEEE_LITTLE_ENDIAN |
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150 | #endif |
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151 | |||
152 | #ifdef __i960__ |
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153 | #define __IEEE_LITTLE_ENDIAN |
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154 | #endif |
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155 | |||
156 | #ifdef __lm32__ |
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157 | #define __IEEE_BIG_ENDIAN |
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158 | #endif |
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159 | |||
160 | #ifdef __M32R__ |
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161 | #define __IEEE_BIG_ENDIAN |
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162 | #endif |
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163 | |||
164 | #if defined(_C4x) || defined(_C3x) |
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165 | #define __IEEE_BIG_ENDIAN |
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166 | #define _DOUBLE_IS_32BITS |
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167 | #endif |
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168 | |||
169 | #ifdef __TMS320C6X__ |
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170 | #ifdef _BIG_ENDIAN |
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171 | #define __IEEE_BIG_ENDIAN |
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172 | #else |
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173 | #define __IEEE_LITTLE_ENDIAN |
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174 | #endif |
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175 | #endif |
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176 | |||
177 | #ifdef __TIC80__ |
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178 | #define __IEEE_LITTLE_ENDIAN |
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179 | #endif |
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180 | |||
181 | #ifdef __MIPSEL__ |
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182 | #define __IEEE_LITTLE_ENDIAN |
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183 | #endif |
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184 | #ifdef __MIPSEB__ |
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185 | #define __IEEE_BIG_ENDIAN |
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186 | #endif |
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187 | |||
188 | #ifdef __MMIX__ |
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189 | #define __IEEE_BIG_ENDIAN |
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190 | #endif |
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191 | |||
192 | #ifdef __D30V__ |
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193 | #define __IEEE_BIG_ENDIAN |
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194 | #endif |
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195 | |||
196 | /* necv70 was __IEEE_LITTLE_ENDIAN. */ |
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197 | |||
198 | #ifdef __W65__ |
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199 | #define __IEEE_LITTLE_ENDIAN |
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200 | #define _DOUBLE_IS_32BITS |
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201 | #endif |
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202 | |||
203 | #if defined(__Z8001__) || defined(__Z8002__) |
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204 | #define __IEEE_BIG_ENDIAN |
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205 | #endif |
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206 | |||
207 | #ifdef __m88k__ |
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208 | #define __IEEE_BIG_ENDIAN |
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209 | #endif |
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210 | |||
211 | #ifdef __mn10300__ |
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212 | #define __IEEE_LITTLE_ENDIAN |
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213 | #endif |
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214 | |||
215 | #ifdef __mn10200__ |
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216 | #define __IEEE_LITTLE_ENDIAN |
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217 | #define _DOUBLE_IS_32BITS |
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218 | #endif |
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219 | |||
220 | #ifdef __v800 |
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221 | #define __IEEE_LITTLE_ENDIAN |
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222 | #endif |
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223 | |||
224 | #ifdef __v850 |
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225 | #define __IEEE_LITTLE_ENDIAN |
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226 | #endif |
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227 | |||
228 | #ifdef __D10V__ |
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229 | #define __IEEE_BIG_ENDIAN |
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230 | #if __DOUBLE__ == 32 |
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231 | #define _DOUBLE_IS_32BITS |
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232 | #endif |
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233 | #endif |
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234 | |||
235 | #ifdef __PPC__ |
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236 | #if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) || (defined(_AIX) && _AIX) |
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237 | #define __IEEE_BIG_ENDIAN |
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238 | #else |
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239 | #if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) || (defined(__sun__) && __sun__) || (defined(_WIN32) && _WIN32) |
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240 | #define __IEEE_LITTLE_ENDIAN |
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241 | #endif |
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242 | #endif |
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243 | #endif |
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244 | |||
245 | #ifdef __xstormy16__ |
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246 | #define __IEEE_LITTLE_ENDIAN |
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247 | #endif |
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248 | |||
249 | #ifdef __arc__ |
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250 | #ifdef __big_endian__ |
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251 | #define __IEEE_BIG_ENDIAN |
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252 | #else |
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253 | #define __IEEE_LITTLE_ENDIAN |
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254 | #endif |
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255 | #endif |
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256 | |||
257 | #ifdef __CRX__ |
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258 | #define __IEEE_LITTLE_ENDIAN |
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259 | #endif |
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260 | |||
261 | #ifdef __fr30__ |
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262 | #define __IEEE_BIG_ENDIAN |
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263 | #endif |
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264 | |||
265 | #ifdef __mcore__ |
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266 | #define __IEEE_BIG_ENDIAN |
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267 | #endif |
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268 | |||
269 | #ifdef __mt__ |
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270 | #define __IEEE_BIG_ENDIAN |
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271 | #endif |
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272 | |||
273 | #ifdef __frv__ |
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274 | #define __IEEE_BIG_ENDIAN |
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275 | #endif |
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276 | |||
277 | #ifdef __moxie__ |
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278 | #define __IEEE_BIG_ENDIAN |
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279 | #endif |
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280 | |||
281 | #ifdef __ia64__ |
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282 | #ifdef __BIG_ENDIAN__ |
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283 | #define __IEEE_BIG_ENDIAN |
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284 | #else |
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285 | #define __IEEE_LITTLE_ENDIAN |
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286 | #endif |
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287 | #endif |
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288 | |||
289 | #ifdef __AVR__ |
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290 | #define __IEEE_LITTLE_ENDIAN |
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291 | #define _DOUBLE_IS_32BITS |
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292 | #endif |
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293 | |||
294 | #if defined(__or32__) || defined(__or1k__) || defined(__or16__) |
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295 | #define __IEEE_BIG_ENDIAN |
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296 | #endif |
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297 | |||
298 | #ifdef __IP2K__ |
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299 | #define __IEEE_BIG_ENDIAN |
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300 | #define __SMALL_BITFIELDS |
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301 | #define _DOUBLE_IS_32BITS |
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302 | #endif |
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303 | |||
304 | #ifdef __iq2000__ |
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305 | #define __IEEE_BIG_ENDIAN |
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306 | #endif |
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307 | |||
308 | #ifdef __MAVERICK__ |
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309 | #ifdef __ARMEL__ |
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310 | # define __IEEE_LITTLE_ENDIAN |
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311 | #else /* must be __ARMEB__ */ |
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312 | # define __IEEE_BIG_ENDIAN |
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313 | #endif /* __ARMEL__ */ |
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314 | #endif /* __MAVERICK__ */ |
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315 | |||
316 | #ifdef __m32c__ |
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317 | #define __IEEE_LITTLE_ENDIAN |
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318 | #define __SMALL_BITFIELDS |
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319 | #endif |
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320 | |||
321 | #ifdef __CRIS__ |
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322 | #define __IEEE_LITTLE_ENDIAN |
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323 | #endif |
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324 | |||
325 | #ifdef __BFIN__ |
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326 | #define __IEEE_LITTLE_ENDIAN |
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327 | #endif |
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328 | |||
329 | #ifdef __x86_64__ |
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330 | #define __IEEE_LITTLE_ENDIAN |
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331 | #endif |
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332 | |||
333 | #ifdef __mep__ |
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334 | #ifdef __LITTLE_ENDIAN__ |
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335 | #define __IEEE_LITTLE_ENDIAN |
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336 | #else |
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337 | #define __IEEE_BIG_ENDIAN |
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338 | #endif |
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339 | #endif |
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340 | |||
341 | #ifdef __MICROBLAZE__ |
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342 | #define __IEEE_BIG_ENDIAN |
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343 | #endif |
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344 | |||
345 | #ifdef __RX__ |
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346 | |||
347 | #ifdef __RX_BIG_ENDIAN__ |
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348 | #define __IEEE_BIG_ENDIAN |
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349 | #else |
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350 | #define __IEEE_LITTLE_ENDIAN |
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351 | #endif |
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352 | |||
353 | #ifndef __RX_64BIT_DOUBLES__ |
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354 | #define _DOUBLE_IS_32BITS |
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355 | #endif |
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356 | |||
357 | #ifdef __RX_16BIT_INTS__ |
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358 | #define __SMALL_BITFIELDS |
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359 | #endif |
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360 | |||
361 | #endif |
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362 | |||
2168 | serge | 363 | #if (defined(__CR16__) || defined(__CR16C__) ||defined(__CR16CP__)) |
364 | #define __IEEE_LITTLE_ENDIAN |
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365 | #define __SMALL_BITFIELDS /* 16 Bit INT */ |
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366 | #endif |
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367 | |||
1693 | serge | 368 | #ifndef __IEEE_BIG_ENDIAN |
369 | #ifndef __IEEE_LITTLE_ENDIAN |
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370 | #error Endianess not declared!! |
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371 | #endif /* not __IEEE_LITTLE_ENDIAN */ |
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372 | #endif /* not __IEEE_BIG_ENDIAN */ |
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373 | |||
374 | #endif /* not __IEEE_LITTLE_ENDIAN */ |
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375 | #endif /* not __IEEE_BIG_ENDIAN */ |
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376 |