diff options
| author | Otavio Salvador <otavio@ossystems.com.br> | 2015-07-23 16:02:25 -0300 |
|---|---|---|
| committer | Otavio Salvador <otavio@ossystems.com.br> | 2015-07-28 23:26:59 -0300 |
| commit | 6a868a671472d454b407a165fc31c5f7dfe783c6 (patch) | |
| tree | 7bd2ab13a04d14215264cc992501970cacfb20ef /recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch | |
| parent | 62e212fe4812a6c726df4ac8e77d4a77e0e54247 (diff) | |
| download | meta-freescale-6a868a671472d454b407a165fc31c5f7dfe783c6.tar.gz | |
Move meta-fsl-ppc content to layer root
This commit is just a rename of all contents of meta-fsl-ppc
subdirectory to this layer's root, merging the contents of common
files, subsequent changes are based on top of that.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Diffstat (limited to 'recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch')
| -rw-r--r-- | recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch | 1427 |
1 files changed, 1427 insertions, 0 deletions
diff --git a/recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch b/recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch new file mode 100644 index 000000000..b6db2de25 --- /dev/null +++ b/recipes-extended/testfloat/files/SoftFloat-powerpc-1.patch | |||
| @@ -0,0 +1,1427 @@ | |||
| 1 | This patch adds PowerPC support in SoftFloat. | ||
| 2 | |||
| 3 | Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com> | ||
| 4 | Signed-off-by: Liu Yu <Yu.Liu@freescale.com> | ||
| 5 | --- | ||
| 6 | SoftFloat-2b/processors/powerpc-GCC.h | 87 ++++ | ||
| 7 | SoftFloat-2b/softfloat/bits32/powerpc-GCC/Makefile | 26 ++ | ||
| 8 | SoftFloat-2b/softfloat/bits32/powerpc-GCC/milieu.h | 55 +++ | ||
| 9 | .../bits32/powerpc-GCC/softfloat-specialize | 252 ++++++++++++ | ||
| 10 | .../softfloat/bits32/powerpc-GCC/softfloat.h | 155 +++++++ | ||
| 11 | SoftFloat-2b/softfloat/bits64/powerpc-GCC/Makefile | 24 ++ | ||
| 12 | SoftFloat-2b/softfloat/bits64/powerpc-GCC/milieu.h | 55 +++ | ||
| 13 | .../bits64/powerpc-GCC/softfloat-specialize | 422 ++++++++++++++++++++ | ||
| 14 | .../softfloat/bits64/powerpc-GCC/softfloat.h | 269 +++++++++++++ | ||
| 15 | 9 files changed, 1345 insertions(+), 0 deletions(-) | ||
| 16 | create mode 100644 SoftFloat-2b/processors/powerpc-GCC.h | ||
| 17 | create mode 100644 SoftFloat-2b/softfloat/bits32/powerpc-GCC/Makefile | ||
| 18 | create mode 100644 SoftFloat-2b/softfloat/bits32/powerpc-GCC/milieu.h | ||
| 19 | create mode 100644 SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat-specialize | ||
| 20 | create mode 100644 SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat.h | ||
| 21 | create mode 100644 SoftFloat-2b/softfloat/bits64/powerpc-GCC/Makefile | ||
| 22 | create mode 100644 SoftFloat-2b/softfloat/bits64/powerpc-GCC/milieu.h | ||
| 23 | create mode 100644 SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat-specialize | ||
| 24 | create mode 100644 SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat.h | ||
| 25 | |||
| 26 | diff --git a/SoftFloat-2b/processors/powerpc-GCC.h b/SoftFloat-2b/processors/powerpc-GCC.h | ||
| 27 | new file mode 100644 | ||
| 28 | index 0000000..002a786 | ||
| 29 | --- /dev/null | ||
| 30 | +++ b/SoftFloat-2b/processors/powerpc-GCC.h | ||
| 31 | @@ -0,0 +1,87 @@ | ||
| 32 | +/* | ||
| 33 | + * This file is derived from processors/386-gcc.h, | ||
| 34 | + * the copyright for that material belongs to the original owners. | ||
| 35 | + * | ||
| 36 | + * Additional material and changes where applicable is: | ||
| 37 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 38 | + * | ||
| 39 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 40 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 41 | + * | ||
| 42 | + * THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 43 | + * been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 44 | + * RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 45 | + * AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 46 | + * COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 47 | + * EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 48 | + * INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 49 | + * OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 50 | + */ | ||
| 51 | + | ||
| 52 | +/*---------------------------------------------------------------------------- | ||
| 53 | +| One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined. | ||
| 54 | +*----------------------------------------------------------------------------*/ | ||
| 55 | +#define BIGENDIAN | ||
| 56 | + | ||
| 57 | +/*---------------------------------------------------------------------------- | ||
| 58 | +| The macro `BITS64' can be defined to indicate that 64-bit integer types are | ||
| 59 | +| supported by the compiler. | ||
| 60 | +*----------------------------------------------------------------------------*/ | ||
| 61 | +#define BITS32 | ||
| 62 | + | ||
| 63 | +/*---------------------------------------------------------------------------- | ||
| 64 | +| Each of the following `typedef's defines the most convenient type that holds | ||
| 65 | +| integers of at least as many bits as specified. For example, `uint8' should | ||
| 66 | +| be the most convenient type that can hold unsigned integers of as many as | ||
| 67 | +| 8 bits. The `flag' type must be able to hold either a 0 or 1. For most | ||
| 68 | +| implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed | ||
| 69 | +| to the same as `int'. | ||
| 70 | +*----------------------------------------------------------------------------*/ | ||
| 71 | +typedef int flag; | ||
| 72 | +typedef int uint8; | ||
| 73 | +typedef int int8; | ||
| 74 | +typedef int uint16; | ||
| 75 | +typedef int int16; | ||
| 76 | +typedef unsigned int uint32; | ||
| 77 | +typedef signed int int32; | ||
| 78 | +#ifdef BITS64 | ||
| 79 | +typedef unsigned long long int uint64; | ||
| 80 | +typedef signed long long int int64; | ||
| 81 | +#endif | ||
| 82 | + | ||
| 83 | +/*---------------------------------------------------------------------------- | ||
| 84 | +| Each of the following `typedef's defines a type that holds integers | ||
| 85 | +| of _exactly_ the number of bits specified. For instance, for most | ||
| 86 | +| implementation of C, `bits16' and `sbits16' should be `typedef'ed to | ||
| 87 | +| `unsigned short int' and `signed short int' (or `short int'), respectively. | ||
| 88 | +*----------------------------------------------------------------------------*/ | ||
| 89 | +typedef unsigned char bits8; | ||
| 90 | +typedef signed char sbits8; | ||
| 91 | +typedef unsigned short int bits16; | ||
| 92 | +typedef signed short int sbits16; | ||
| 93 | +typedef unsigned int bits32; | ||
| 94 | +typedef signed int sbits32; | ||
| 95 | +#ifdef BITS64 | ||
| 96 | +typedef unsigned long long int bits64; | ||
| 97 | +typedef signed long long int sbits64; | ||
| 98 | +#endif | ||
| 99 | + | ||
| 100 | +#ifdef BITS64 | ||
| 101 | +/*---------------------------------------------------------------------------- | ||
| 102 | +| The `LIT64' macro takes as its argument a textual integer literal and | ||
| 103 | +| if necessary ``marks'' the literal as having a 64-bit integer type. | ||
| 104 | +| For example, the GNU C Compiler (`gcc') requires that 64-bit literals be | ||
| 105 | +| appended with the letters `LL' standing for `long long', which is `gcc's | ||
| 106 | +| name for the 64-bit integer type. Some compilers may allow `LIT64' to be | ||
| 107 | +| defined as the identity macro: `#define LIT64( a ) a'. | ||
| 108 | +*----------------------------------------------------------------------------*/ | ||
| 109 | +#define LIT64( a ) a##LL | ||
| 110 | +#endif | ||
| 111 | + | ||
| 112 | +/*---------------------------------------------------------------------------- | ||
| 113 | +| The macro `INLINE' can be used before functions that should be inlined. If | ||
| 114 | +| a compiler does not support explicit inlining, this macro should be defined | ||
| 115 | +| to be `static'. | ||
| 116 | +*----------------------------------------------------------------------------*/ | ||
| 117 | +#define INLINE extern inline | ||
| 118 | + | ||
| 119 | diff --git a/SoftFloat-2b/softfloat/bits32/powerpc-GCC/Makefile b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/Makefile | ||
| 120 | new file mode 100644 | ||
| 121 | index 0000000..28f1e33 | ||
| 122 | --- /dev/null | ||
| 123 | +++ b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/Makefile | ||
| 124 | @@ -0,0 +1,26 @@ | ||
| 125 | + | ||
| 126 | +PROCESSOR_H = ../../../processors/powerpc-GCC.h | ||
| 127 | +SOFTFLOAT_MACROS = ../softfloat-macros | ||
| 128 | + | ||
| 129 | +OBJ = .o | ||
| 130 | +EXE = | ||
| 131 | +INCLUDES = -I. -I.. | ||
| 132 | +COMPILE_C = $(COMPILE_PREFIX)gcc -msoft-float -c -o $@ $(INCLUDES) -I- -O2 | ||
| 133 | +LINK = $(COMPILE_PREFIX)gcc -o $@ | ||
| 134 | + | ||
| 135 | +ALL: softfloat$(OBJ) timesoftfloat$(EXE) | ||
| 136 | + | ||
| 137 | +milieu.h: $(PROCESSOR_H) | ||
| 138 | + touch milieu.h | ||
| 139 | + | ||
| 140 | +softfloat$(OBJ): milieu.h softfloat.h softfloat-specialize $(SOFTFLOAT_MACROS) ../softfloat.c | ||
| 141 | + $(COMPILE_C) ../softfloat.c | ||
| 142 | + | ||
| 143 | +timesoftfloat$(OBJ): milieu.h softfloat.h ../timesoftfloat.c | ||
| 144 | + $(COMPILE_C) ../timesoftfloat.c | ||
| 145 | + | ||
| 146 | +timesoftfloat$(EXE): softfloat$(OBJ) timesoftfloat$(OBJ) | ||
| 147 | + $(LINK) softfloat$(OBJ) timesoftfloat$(OBJ) | ||
| 148 | + | ||
| 149 | +clean: | ||
| 150 | + rm -f *.o timesoftfloat$(EXE) | ||
| 151 | diff --git a/SoftFloat-2b/softfloat/bits32/powerpc-GCC/milieu.h b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/milieu.h | ||
| 152 | new file mode 100644 | ||
| 153 | index 0000000..d8b6012 | ||
| 154 | --- /dev/null | ||
| 155 | +++ b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/milieu.h | ||
| 156 | @@ -0,0 +1,55 @@ | ||
| 157 | +/* | ||
| 158 | + * This file is derived from softfloat/bits32/386-Win32-GCC/milieu.h, | ||
| 159 | + * the copyright for that material belongs to the original owners. | ||
| 160 | + * | ||
| 161 | + * Additional material and changes where applicable is: | ||
| 162 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 163 | + * | ||
| 164 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 165 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 166 | + */ | ||
| 167 | + | ||
| 168 | +/*============================================================================ | ||
| 169 | + | ||
| 170 | +This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic | ||
| 171 | +Package, Release 2b. | ||
| 172 | + | ||
| 173 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 174 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 175 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 176 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 177 | +of this code was written as part of a project to build a fixed-point vector | ||
| 178 | +processor in collaboration with the University of California at Berkeley, | ||
| 179 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 180 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 181 | +arithmetic/SoftFloat.html'. | ||
| 182 | + | ||
| 183 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 184 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 185 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 186 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 187 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 188 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 189 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 190 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 191 | + | ||
| 192 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 193 | +(1) the source code for the derivative work includes prominent notice that | ||
| 194 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 195 | +these four paragraphs for those parts of this code that are retained. | ||
| 196 | + | ||
| 197 | +=============================================================================*/ | ||
| 198 | + | ||
| 199 | +/*---------------------------------------------------------------------------- | ||
| 200 | +| Include common integer types and flags. | ||
| 201 | +*----------------------------------------------------------------------------*/ | ||
| 202 | +#include "../../../processors/powerpc-GCC.h" | ||
| 203 | + | ||
| 204 | +/*---------------------------------------------------------------------------- | ||
| 205 | +| Symbolic Boolean literals. | ||
| 206 | +*----------------------------------------------------------------------------*/ | ||
| 207 | +enum { | ||
| 208 | + FALSE = 0, | ||
| 209 | + TRUE = 1 | ||
| 210 | +}; | ||
| 211 | + | ||
| 212 | diff --git a/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat-specialize b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat-specialize | ||
| 213 | new file mode 100644 | ||
| 214 | index 0000000..fd2caa4 | ||
| 215 | --- /dev/null | ||
| 216 | +++ b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat-specialize | ||
| 217 | @@ -0,0 +1,252 @@ | ||
| 218 | +/* | ||
| 219 | + * This file is derived from softfloat/bits32/386-Win32-GCC/softfloat-specialize, | ||
| 220 | + * the copyright for that material belongs to the original owners. | ||
| 221 | + * | ||
| 222 | + * Additional material and changes where applicable is: | ||
| 223 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 224 | + * | ||
| 225 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 226 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 227 | + */ | ||
| 228 | + | ||
| 229 | +/*============================================================================ | ||
| 230 | + | ||
| 231 | +This C source fragment is part of the SoftFloat IEC/IEEE Floating-point | ||
| 232 | +Arithmetic Package, Release 2b. | ||
| 233 | + | ||
| 234 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 235 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 236 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 237 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 238 | +of this code was written as part of a project to build a fixed-point vector | ||
| 239 | +processor in collaboration with the University of California at Berkeley, | ||
| 240 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 241 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 242 | +arithmetic/SoftFloat.html'. | ||
| 243 | + | ||
| 244 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 245 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 246 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 247 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 248 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 249 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 250 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 251 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 252 | + | ||
| 253 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 254 | +(1) the source code for the derivative work includes prominent notice that | ||
| 255 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 256 | +these four paragraphs for those parts of this code that are retained. | ||
| 257 | + | ||
| 258 | +=============================================================================*/ | ||
| 259 | + | ||
| 260 | +/*---------------------------------------------------------------------------- | ||
| 261 | +| Underflow tininess-detection mode, statically initialized to default value. | ||
| 262 | +| (The declaration in `softfloat.h' must match the `int8' type here.) | ||
| 263 | +*----------------------------------------------------------------------------*/ | ||
| 264 | +int8 float_detect_tininess = float_tininess_after_rounding; | ||
| 265 | + | ||
| 266 | +/*---------------------------------------------------------------------------- | ||
| 267 | +| Raises the exceptions specified by `flags'. Floating-point traps can be | ||
| 268 | +| defined here if desired. It is currently not possible for such a trap | ||
| 269 | +| to substitute a result value. If traps are not implemented, this routine | ||
| 270 | +| should be simply `float_exception_flags |= flags;'. | ||
| 271 | +*----------------------------------------------------------------------------*/ | ||
| 272 | + | ||
| 273 | +void float_raise( int8 flags ) | ||
| 274 | +{ | ||
| 275 | + | ||
| 276 | + float_exception_flags |= flags; | ||
| 277 | + | ||
| 278 | +} | ||
| 279 | + | ||
| 280 | +/*---------------------------------------------------------------------------- | ||
| 281 | +| Internal canonical NaN format. | ||
| 282 | +*----------------------------------------------------------------------------*/ | ||
| 283 | +typedef struct { | ||
| 284 | + flag sign; | ||
| 285 | + bits32 high, low; | ||
| 286 | +} commonNaNT; | ||
| 287 | + | ||
| 288 | +/*---------------------------------------------------------------------------- | ||
| 289 | +| The pattern for a default generated single-precision NaN. | ||
| 290 | +*----------------------------------------------------------------------------*/ | ||
| 291 | +enum { | ||
| 292 | + float32_default_nan = 0xFFFFFFFF | ||
| 293 | +}; | ||
| 294 | + | ||
| 295 | +/*---------------------------------------------------------------------------- | ||
| 296 | +| Returns 1 if the single-precision floating-point value `a' is a NaN; | ||
| 297 | +| otherwise returns 0. | ||
| 298 | +*----------------------------------------------------------------------------*/ | ||
| 299 | + | ||
| 300 | +flag float32_is_nan( float32 a ) | ||
| 301 | +{ | ||
| 302 | + | ||
| 303 | + return ( 0xFF000000 < (bits32) ( a<<1 ) ); | ||
| 304 | + | ||
| 305 | +} | ||
| 306 | + | ||
| 307 | +/*---------------------------------------------------------------------------- | ||
| 308 | +| Returns 1 if the single-precision floating-point value `a' is a signaling | ||
| 309 | +| NaN; otherwise returns 0. | ||
| 310 | +*----------------------------------------------------------------------------*/ | ||
| 311 | + | ||
| 312 | +flag float32_is_signaling_nan( float32 a ) | ||
| 313 | +{ | ||
| 314 | + | ||
| 315 | + return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); | ||
| 316 | + | ||
| 317 | +} | ||
| 318 | + | ||
| 319 | +/*---------------------------------------------------------------------------- | ||
| 320 | +| Returns the result of converting the single-precision floating-point NaN | ||
| 321 | +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid | ||
| 322 | +| exception is raised. | ||
| 323 | +*----------------------------------------------------------------------------*/ | ||
| 324 | + | ||
| 325 | +static commonNaNT float32ToCommonNaN( float32 a ) | ||
| 326 | +{ | ||
| 327 | + commonNaNT z; | ||
| 328 | + | ||
| 329 | + if ( float32_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 330 | + z.sign = a>>31; | ||
| 331 | + z.low = 0; | ||
| 332 | + z.high = a<<9; | ||
| 333 | + return z; | ||
| 334 | + | ||
| 335 | +} | ||
| 336 | + | ||
| 337 | +/*---------------------------------------------------------------------------- | ||
| 338 | +| Returns the result of converting the canonical NaN `a' to the single- | ||
| 339 | +| precision floating-point format. | ||
| 340 | +*----------------------------------------------------------------------------*/ | ||
| 341 | + | ||
| 342 | +static float32 commonNaNToFloat32( commonNaNT a ) | ||
| 343 | +{ | ||
| 344 | + | ||
| 345 | + return ( ( (bits32) a.sign )<<31 ) | 0x7FC00000 | ( a.high>>9 ); | ||
| 346 | + | ||
| 347 | +} | ||
| 348 | + | ||
| 349 | +/*---------------------------------------------------------------------------- | ||
| 350 | +| Takes two single-precision floating-point values `a' and `b', one of which | ||
| 351 | +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a | ||
| 352 | +| signaling NaN, the invalid exception is raised. | ||
| 353 | +*----------------------------------------------------------------------------*/ | ||
| 354 | + | ||
| 355 | +static float32 propagateFloat32NaN( float32 a, float32 b ) | ||
| 356 | +{ | ||
| 357 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 358 | + | ||
| 359 | + aIsNaN = float32_is_nan( a ); | ||
| 360 | + aIsSignalingNaN = float32_is_signaling_nan( a ); | ||
| 361 | + bIsNaN = float32_is_nan( b ); | ||
| 362 | + bIsSignalingNaN = float32_is_signaling_nan( b ); | ||
| 363 | + a |= 0x00400000; | ||
| 364 | + b |= 0x00400000; | ||
| 365 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 366 | + if ( aIsNaN ) { | ||
| 367 | + return ( aIsSignalingNaN & bIsNaN ) ? b : a; | ||
| 368 | + } | ||
| 369 | + else { | ||
| 370 | + return b; | ||
| 371 | + } | ||
| 372 | + | ||
| 373 | +} | ||
| 374 | + | ||
| 375 | +/*---------------------------------------------------------------------------- | ||
| 376 | +| The pattern for a default generated double-precision NaN. The `high' and | ||
| 377 | +| `low' values hold the most- and least-significant bits, respectively. | ||
| 378 | +*----------------------------------------------------------------------------*/ | ||
| 379 | +enum { | ||
| 380 | + float64_default_nan_high = 0xFFFFFFFF, | ||
| 381 | + float64_default_nan_low = 0xFFFFFFFF | ||
| 382 | +}; | ||
| 383 | + | ||
| 384 | +/*---------------------------------------------------------------------------- | ||
| 385 | +| Returns 1 if the double-precision floating-point value `a' is a NaN; | ||
| 386 | +| otherwise returns 0. | ||
| 387 | +*----------------------------------------------------------------------------*/ | ||
| 388 | + | ||
| 389 | +flag float64_is_nan( float64 a ) | ||
| 390 | +{ | ||
| 391 | + | ||
| 392 | + return | ||
| 393 | + ( 0xFFE00000 <= (bits32) ( a.high<<1 ) ) | ||
| 394 | + && ( a.low || ( a.high & 0x000FFFFF ) ); | ||
| 395 | + | ||
| 396 | +} | ||
| 397 | + | ||
| 398 | +/*---------------------------------------------------------------------------- | ||
| 399 | +| Returns 1 if the double-precision floating-point value `a' is a signaling | ||
| 400 | +| NaN; otherwise returns 0. | ||
| 401 | +*----------------------------------------------------------------------------*/ | ||
| 402 | + | ||
| 403 | +flag float64_is_signaling_nan( float64 a ) | ||
| 404 | +{ | ||
| 405 | + | ||
| 406 | + return | ||
| 407 | + ( ( ( a.high>>19 ) & 0xFFF ) == 0xFFE ) | ||
| 408 | + && ( a.low || ( a.high & 0x0007FFFF ) ); | ||
| 409 | + | ||
| 410 | +} | ||
| 411 | + | ||
| 412 | +/*---------------------------------------------------------------------------- | ||
| 413 | +| Returns the result of converting the double-precision floating-point NaN | ||
| 414 | +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid | ||
| 415 | +| exception is raised. | ||
| 416 | +*----------------------------------------------------------------------------*/ | ||
| 417 | + | ||
| 418 | +static commonNaNT float64ToCommonNaN( float64 a ) | ||
| 419 | +{ | ||
| 420 | + commonNaNT z; | ||
| 421 | + | ||
| 422 | + if ( float64_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 423 | + z.sign = a.high>>31; | ||
| 424 | + shortShift64Left( a.high, a.low, 12, &z.high, &z.low ); | ||
| 425 | + return z; | ||
| 426 | + | ||
| 427 | +} | ||
| 428 | + | ||
| 429 | +/*---------------------------------------------------------------------------- | ||
| 430 | +| Returns the result of converting the canonical NaN `a' to the double- | ||
| 431 | +| precision floating-point format. | ||
| 432 | +*----------------------------------------------------------------------------*/ | ||
| 433 | + | ||
| 434 | +static float64 commonNaNToFloat64( commonNaNT a ) | ||
| 435 | +{ | ||
| 436 | + float64 z; | ||
| 437 | + | ||
| 438 | + shift64Right( a.high, a.low, 12, &z.high, &z.low ); | ||
| 439 | + z.high |= ( ( (bits32) a.sign )<<31 ) | 0x7FF80000; | ||
| 440 | + return z; | ||
| 441 | + | ||
| 442 | +} | ||
| 443 | + | ||
| 444 | +/*---------------------------------------------------------------------------- | ||
| 445 | +| Takes two double-precision floating-point values `a' and `b', one of which | ||
| 446 | +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a | ||
| 447 | +| signaling NaN, the invalid exception is raised. | ||
| 448 | +*----------------------------------------------------------------------------*/ | ||
| 449 | + | ||
| 450 | +static float64 propagateFloat64NaN( float64 a, float64 b ) | ||
| 451 | +{ | ||
| 452 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 453 | + | ||
| 454 | + aIsNaN = float64_is_nan( a ); | ||
| 455 | + aIsSignalingNaN = float64_is_signaling_nan( a ); | ||
| 456 | + bIsNaN = float64_is_nan( b ); | ||
| 457 | + bIsSignalingNaN = float64_is_signaling_nan( b ); | ||
| 458 | + a.high |= 0x00080000; | ||
| 459 | + b.high |= 0x00080000; | ||
| 460 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 461 | + if ( aIsNaN ) { | ||
| 462 | + return ( aIsSignalingNaN & bIsNaN ) ? b : a; | ||
| 463 | + } | ||
| 464 | + else { | ||
| 465 | + return b; | ||
| 466 | + } | ||
| 467 | + | ||
| 468 | +} | ||
| 469 | + | ||
| 470 | diff --git a/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat.h b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat.h | ||
| 471 | new file mode 100644 | ||
| 472 | index 0000000..0015b8e | ||
| 473 | --- /dev/null | ||
| 474 | +++ b/SoftFloat-2b/softfloat/bits32/powerpc-GCC/softfloat.h | ||
| 475 | @@ -0,0 +1,155 @@ | ||
| 476 | +/* | ||
| 477 | + * This file is derived from softfloat/bits32/386-Win32-GCC/softfloat.h, | ||
| 478 | + * the copyright for that material belongs to the original owners. | ||
| 479 | + * | ||
| 480 | + * Additional material and changes where applicable is: | ||
| 481 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 482 | + * | ||
| 483 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 484 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 485 | + */ | ||
| 486 | + | ||
| 487 | +/*============================================================================ | ||
| 488 | + | ||
| 489 | +This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic | ||
| 490 | +Package, Release 2b. | ||
| 491 | + | ||
| 492 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 493 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 494 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 495 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 496 | +of this code was written as part of a project to build a fixed-point vector | ||
| 497 | +processor in collaboration with the University of California at Berkeley, | ||
| 498 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 499 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 500 | +arithmetic/SoftFloat.html'. | ||
| 501 | + | ||
| 502 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 503 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 504 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 505 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 506 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 507 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 508 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 509 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 510 | + | ||
| 511 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 512 | +(1) the source code for the derivative work includes prominent notice that | ||
| 513 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 514 | +these four paragraphs for those parts of this code that are retained. | ||
| 515 | + | ||
| 516 | +=============================================================================*/ | ||
| 517 | + | ||
| 518 | +/*---------------------------------------------------------------------------- | ||
| 519 | +| Software IEC/IEEE floating-point types. | ||
| 520 | +*----------------------------------------------------------------------------*/ | ||
| 521 | +typedef bits32 float32; | ||
| 522 | +typedef struct { | ||
| 523 | + bits32 high, low; | ||
| 524 | +} float64; | ||
| 525 | + | ||
| 526 | +/*---------------------------------------------------------------------------- | ||
| 527 | +| Software IEC/IEEE floating-point underflow tininess-detection mode. | ||
| 528 | +*----------------------------------------------------------------------------*/ | ||
| 529 | +extern int8 float_detect_tininess; | ||
| 530 | +enum { | ||
| 531 | + float_tininess_after_rounding = 0, | ||
| 532 | + float_tininess_before_rounding = 1 | ||
| 533 | +}; | ||
| 534 | + | ||
| 535 | +/*---------------------------------------------------------------------------- | ||
| 536 | +| Software IEC/IEEE floating-point rounding mode. | ||
| 537 | +*----------------------------------------------------------------------------*/ | ||
| 538 | +extern int8 float_rounding_mode; | ||
| 539 | +enum { | ||
| 540 | + float_round_nearest_even = 0, | ||
| 541 | + float_round_to_zero = 1, | ||
| 542 | + float_round_up = 2, | ||
| 543 | + float_round_down = 3 | ||
| 544 | +}; | ||
| 545 | + | ||
| 546 | +/*---------------------------------------------------------------------------- | ||
| 547 | +| Software IEC/IEEE floating-point exception flags. | ||
| 548 | +*----------------------------------------------------------------------------*/ | ||
| 549 | +/* | ||
| 550 | +extern int8 float_exception_flags; | ||
| 551 | +enum { | ||
| 552 | + float_flag_inexact = 1, | ||
| 553 | + float_flag_underflow = 2, | ||
| 554 | + float_flag_overflow = 4, | ||
| 555 | + float_flag_divbyzero = 8, | ||
| 556 | + float_flag_invalid = 16 | ||
| 557 | +}; | ||
| 558 | +*/ | ||
| 559 | + | ||
| 560 | +extern int8 float_exception_flags; | ||
| 561 | +enum { | ||
| 562 | + float_flag_inexact = 16, | ||
| 563 | + float_flag_underflow = 2, | ||
| 564 | + float_flag_overflow = 1, | ||
| 565 | + float_flag_divbyzero = 4, | ||
| 566 | + float_flag_invalid = 8 | ||
| 567 | +}; | ||
| 568 | + | ||
| 569 | +/*---------------------------------------------------------------------------- | ||
| 570 | +| Routine to raise any or all of the software IEC/IEEE floating-point | ||
| 571 | +| exception flags. | ||
| 572 | +*----------------------------------------------------------------------------*/ | ||
| 573 | +void float_raise( int8 ); | ||
| 574 | + | ||
| 575 | +/*---------------------------------------------------------------------------- | ||
| 576 | +| Software IEC/IEEE integer-to-floating-point conversion routines. | ||
| 577 | +*----------------------------------------------------------------------------*/ | ||
| 578 | +float32 int32_to_float32( int32 ); | ||
| 579 | +float64 int32_to_float64( int32 ); | ||
| 580 | + | ||
| 581 | +/*---------------------------------------------------------------------------- | ||
| 582 | +| Software IEC/IEEE single-precision conversion routines. | ||
| 583 | +*----------------------------------------------------------------------------*/ | ||
| 584 | +int32 float32_to_int32( float32 ); | ||
| 585 | +int32 float32_to_int32_round_to_zero( float32 ); | ||
| 586 | +float64 float32_to_float64( float32 ); | ||
| 587 | + | ||
| 588 | +/*---------------------------------------------------------------------------- | ||
| 589 | +| Software IEC/IEEE single-precision operations. | ||
| 590 | +*----------------------------------------------------------------------------*/ | ||
| 591 | +float32 float32_round_to_int( float32 ); | ||
| 592 | +float32 float32_add( float32, float32 ); | ||
| 593 | +float32 float32_sub( float32, float32 ); | ||
| 594 | +float32 float32_mul( float32, float32 ); | ||
| 595 | +float32 float32_div( float32, float32 ); | ||
| 596 | +float32 float32_rem( float32, float32 ); | ||
| 597 | +float32 float32_sqrt( float32 ); | ||
| 598 | +flag float32_eq( float32, float32 ); | ||
| 599 | +flag float32_le( float32, float32 ); | ||
| 600 | +flag float32_lt( float32, float32 ); | ||
| 601 | +flag float32_eq_signaling( float32, float32 ); | ||
| 602 | +flag float32_le_quiet( float32, float32 ); | ||
| 603 | +flag float32_lt_quiet( float32, float32 ); | ||
| 604 | +flag float32_is_signaling_nan( float32 ); | ||
| 605 | + | ||
| 606 | +/*---------------------------------------------------------------------------- | ||
| 607 | +| Software IEC/IEEE double-precision conversion routines. | ||
| 608 | +*----------------------------------------------------------------------------*/ | ||
| 609 | +int32 float64_to_int32( float64 ); | ||
| 610 | +int32 float64_to_int32_round_to_zero( float64 ); | ||
| 611 | +float32 float64_to_float32( float64 ); | ||
| 612 | + | ||
| 613 | +/*---------------------------------------------------------------------------- | ||
| 614 | +| Software IEC/IEEE double-precision operations. | ||
| 615 | +*----------------------------------------------------------------------------*/ | ||
| 616 | +float64 float64_round_to_int( float64 ); | ||
| 617 | +float64 float64_add( float64, float64 ); | ||
| 618 | +float64 float64_sub( float64, float64 ); | ||
| 619 | +float64 float64_mul( float64, float64 ); | ||
| 620 | +float64 float64_div( float64, float64 ); | ||
| 621 | +float64 float64_rem( float64, float64 ); | ||
| 622 | +float64 float64_sqrt( float64 ); | ||
| 623 | +flag float64_eq( float64, float64 ); | ||
| 624 | +flag float64_le( float64, float64 ); | ||
| 625 | +flag float64_lt( float64, float64 ); | ||
| 626 | +flag float64_eq_signaling( float64, float64 ); | ||
| 627 | +flag float64_le_quiet( float64, float64 ); | ||
| 628 | +flag float64_lt_quiet( float64, float64 ); | ||
| 629 | +flag float64_is_signaling_nan( float64 ); | ||
| 630 | + | ||
| 631 | diff --git a/SoftFloat-2b/softfloat/bits64/powerpc-GCC/Makefile b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/Makefile | ||
| 632 | new file mode 100644 | ||
| 633 | index 0000000..a5e2cc7 | ||
| 634 | --- /dev/null | ||
| 635 | +++ b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/Makefile | ||
| 636 | @@ -0,0 +1,24 @@ | ||
| 637 | + | ||
| 638 | +PROCESSOR_H = ../../../processors/powerpc-GCC.h | ||
| 639 | +SOFTFLOAT_MACROS = ../softfloat-macros | ||
| 640 | + | ||
| 641 | +OBJ = .o | ||
| 642 | +EXE = | ||
| 643 | +INCLUDES = -I. -I.. | ||
| 644 | +COMPILE_C = $(COMPILE_PREFIX) -mcpu=8548 -mhard-float -mfloat-gprs=double -o $@ $(INCLUDES) -I- -O2 | ||
| 645 | +LINK = $(COMPILE_PREFIX) -o $@ | ||
| 646 | + | ||
| 647 | +ALL: softfloat$(OBJ) timesoftfloat$(EXE) | ||
| 648 | + | ||
| 649 | +milieu.h: $(PROCESSOR_H) | ||
| 650 | + touch milieu.h | ||
| 651 | + | ||
| 652 | +softfloat$(OBJ): milieu.h softfloat.h softfloat-specialize $(SOFTFLOAT_MACROS) ../softfloat.c | ||
| 653 | + $(COMPILE_C) ../softfloat.c | ||
| 654 | + | ||
| 655 | +timesoftfloat$(OBJ): milieu.h softfloat.h ../timesoftfloat.c | ||
| 656 | + $(COMPILE_C) ../timesoftfloat.c | ||
| 657 | + | ||
| 658 | +timesoftfloat$(EXE): softfloat$(OBJ) timesoftfloat$(OBJ) | ||
| 659 | + $(LINK) softfloat$(OBJ) timesoftfloat$(OBJ) | ||
| 660 | + | ||
| 661 | diff --git a/SoftFloat-2b/softfloat/bits64/powerpc-GCC/milieu.h b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/milieu.h | ||
| 662 | new file mode 100644 | ||
| 663 | index 0000000..1b66490 | ||
| 664 | --- /dev/null | ||
| 665 | +++ b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/milieu.h | ||
| 666 | @@ -0,0 +1,55 @@ | ||
| 667 | +/* | ||
| 668 | + * This file is derived from softfloat/bits64/386-Win32-GCC/milieu.h, | ||
| 669 | + * the copyright for that material belongs to the original owners. | ||
| 670 | + * | ||
| 671 | + * Additional material and changes where applicable is: | ||
| 672 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 673 | + * | ||
| 674 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 675 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 676 | + */ | ||
| 677 | + | ||
| 678 | +/*============================================================================ | ||
| 679 | + | ||
| 680 | +This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic | ||
| 681 | +Package, Release 2b. | ||
| 682 | + | ||
| 683 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 684 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 685 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 686 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 687 | +of this code was written as part of a project to build a fixed-point vector | ||
| 688 | +processor in collaboration with the University of California at Berkeley, | ||
| 689 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 690 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 691 | +arithmetic/SoftFloat.html'. | ||
| 692 | + | ||
| 693 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 694 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 695 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 696 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 697 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 698 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 699 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 700 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 701 | + | ||
| 702 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 703 | +(1) the source code for the derivative work includes prominent notice that | ||
| 704 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 705 | +these four paragraphs for those parts of this code that are retained. | ||
| 706 | + | ||
| 707 | +=============================================================================*/ | ||
| 708 | + | ||
| 709 | +/*---------------------------------------------------------------------------- | ||
| 710 | +| Include common integer types and flags. | ||
| 711 | +*----------------------------------------------------------------------------*/ | ||
| 712 | +#include "../../../processors/SPARC-GCC.h" | ||
| 713 | + | ||
| 714 | +/*---------------------------------------------------------------------------- | ||
| 715 | +| Symbolic Boolean literals. | ||
| 716 | +*----------------------------------------------------------------------------*/ | ||
| 717 | +enum { | ||
| 718 | + FALSE = 0, | ||
| 719 | + TRUE = 1 | ||
| 720 | +}; | ||
| 721 | + | ||
| 722 | diff --git a/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat-specialize b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat-specialize | ||
| 723 | new file mode 100644 | ||
| 724 | index 0000000..b1d0bc8 | ||
| 725 | --- /dev/null | ||
| 726 | +++ b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat-specialize | ||
| 727 | @@ -0,0 +1,422 @@ | ||
| 728 | +/* | ||
| 729 | + * This file is derived from softfloat/bits64/386-Win32-GCC/softfloat-specialize, | ||
| 730 | + * the copyright for that material belongs to the original owners. | ||
| 731 | + * | ||
| 732 | + * Additional material and changes where applicable is: | ||
| 733 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 734 | + * | ||
| 735 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 736 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 737 | + */ | ||
| 738 | + | ||
| 739 | +/*============================================================================ | ||
| 740 | + | ||
| 741 | +This C source fragment is part of the SoftFloat IEC/IEEE Floating-point | ||
| 742 | +Arithmetic Package, Release 2b. | ||
| 743 | + | ||
| 744 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 745 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 746 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 747 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 748 | +of this code was written as part of a project to build a fixed-point vector | ||
| 749 | +processor in collaboration with the University of California at Berkeley, | ||
| 750 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 751 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 752 | +arithmetic/SoftFloat.html'. | ||
| 753 | + | ||
| 754 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 755 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 756 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 757 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 758 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 759 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 760 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 761 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 762 | + | ||
| 763 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 764 | +(1) the source code for the derivative work includes prominent notice that | ||
| 765 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 766 | +these four paragraphs for those parts of this code that are retained. | ||
| 767 | + | ||
| 768 | +=============================================================================*/ | ||
| 769 | + | ||
| 770 | +/*---------------------------------------------------------------------------- | ||
| 771 | +| Underflow tininess-detection mode, statically initialized to default value. | ||
| 772 | +| (The declaration in `softfloat.h' must match the `int8' type here.) | ||
| 773 | +*----------------------------------------------------------------------------*/ | ||
| 774 | +int8 float_detect_tininess = float_tininess_before_rounding; | ||
| 775 | + | ||
| 776 | +/*---------------------------------------------------------------------------- | ||
| 777 | +| Raises the exceptions specified by `flags'. Floating-point traps can be | ||
| 778 | +| defined here if desired. It is currently not possible for such a trap | ||
| 779 | +| to substitute a result value. If traps are not implemented, this routine | ||
| 780 | +| should be simply `float_exception_flags |= flags;'. | ||
| 781 | +*----------------------------------------------------------------------------*/ | ||
| 782 | + | ||
| 783 | +void float_raise( int8 flags ) | ||
| 784 | +{ | ||
| 785 | + | ||
| 786 | + float_exception_flags |= flags; | ||
| 787 | + | ||
| 788 | +} | ||
| 789 | + | ||
| 790 | +/*---------------------------------------------------------------------------- | ||
| 791 | +| Internal canonical NaN format. | ||
| 792 | +*----------------------------------------------------------------------------*/ | ||
| 793 | +typedef struct { | ||
| 794 | + flag sign; | ||
| 795 | + bits64 high, low; | ||
| 796 | +} commonNaNT; | ||
| 797 | + | ||
| 798 | +/*---------------------------------------------------------------------------- | ||
| 799 | +| The pattern for a default generated single-precision NaN. | ||
| 800 | +*----------------------------------------------------------------------------*/ | ||
| 801 | +#define float32_default_nan 0x7FFFFFFF | ||
| 802 | + | ||
| 803 | +/*---------------------------------------------------------------------------- | ||
| 804 | +| Returns 1 if the single-precision floating-point value `a' is a NaN; | ||
| 805 | +| otherwise returns 0. | ||
| 806 | +*----------------------------------------------------------------------------*/ | ||
| 807 | + | ||
| 808 | +flag float32_is_nan( float32 a ) | ||
| 809 | +{ | ||
| 810 | + | ||
| 811 | + return ( 0xFF000000 < (bits32) ( a<<1 ) ); | ||
| 812 | + | ||
| 813 | +} | ||
| 814 | + | ||
| 815 | +/*---------------------------------------------------------------------------- | ||
| 816 | +| Returns 1 if the single-precision floating-point value `a' is a signaling | ||
| 817 | +| NaN; otherwise returns 0. | ||
| 818 | +*----------------------------------------------------------------------------*/ | ||
| 819 | + | ||
| 820 | +flag float32_is_signaling_nan( float32 a ) | ||
| 821 | +{ | ||
| 822 | + | ||
| 823 | + return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); | ||
| 824 | + | ||
| 825 | +} | ||
| 826 | + | ||
| 827 | +/*---------------------------------------------------------------------------- | ||
| 828 | +| Returns the result of converting the single-precision floating-point NaN | ||
| 829 | +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid | ||
| 830 | +| exception is raised. | ||
| 831 | +*----------------------------------------------------------------------------*/ | ||
| 832 | + | ||
| 833 | +static commonNaNT float32ToCommonNaN( float32 a ) | ||
| 834 | +{ | ||
| 835 | + commonNaNT z; | ||
| 836 | + | ||
| 837 | + if ( float32_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 838 | + z.sign = a>>31; | ||
| 839 | + z.low = 0; | ||
| 840 | + z.high = ( (bits64) a )<<41; | ||
| 841 | + return z; | ||
| 842 | + | ||
| 843 | +} | ||
| 844 | + | ||
| 845 | +/*---------------------------------------------------------------------------- | ||
| 846 | +| Returns the result of converting the canonical NaN `a' to the single- | ||
| 847 | +| precision floating-point format. | ||
| 848 | +*----------------------------------------------------------------------------*/ | ||
| 849 | + | ||
| 850 | +static float32 commonNaNToFloat32( commonNaNT a ) | ||
| 851 | +{ | ||
| 852 | + | ||
| 853 | + return ( ( (bits32) a.sign )<<31 ) | 0x7FC00000 | ( a.high>>41 ); | ||
| 854 | + | ||
| 855 | +} | ||
| 856 | + | ||
| 857 | +/*---------------------------------------------------------------------------- | ||
| 858 | +| Takes two single-precision floating-point values `a' and `b', one of which | ||
| 859 | +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a | ||
| 860 | +| signaling NaN, the invalid exception is raised. | ||
| 861 | +*----------------------------------------------------------------------------*/ | ||
| 862 | + | ||
| 863 | +static float32 propagateFloat32NaN( float32 a, float32 b ) | ||
| 864 | +{ | ||
| 865 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 866 | + | ||
| 867 | + aIsNaN = float32_is_nan( a ); | ||
| 868 | + aIsSignalingNaN = float32_is_signaling_nan( a ); | ||
| 869 | + bIsNaN = float32_is_nan( b ); | ||
| 870 | + bIsSignalingNaN = float32_is_signaling_nan( b ); | ||
| 871 | + a |= 0x00400000; | ||
| 872 | + b |= 0x00400000; | ||
| 873 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 874 | + return bIsSignalingNaN ? b : aIsSignalingNaN ? a : bIsNaN ? b : a; | ||
| 875 | + | ||
| 876 | +} | ||
| 877 | + | ||
| 878 | +/*---------------------------------------------------------------------------- | ||
| 879 | +| The pattern for a default generated double-precision NaN. | ||
| 880 | +*----------------------------------------------------------------------------*/ | ||
| 881 | +#define float64_default_nan LIT64( 0x7FFFFFFFFFFFFFFF ) | ||
| 882 | + | ||
| 883 | +/*---------------------------------------------------------------------------- | ||
| 884 | +| Returns 1 if the double-precision floating-point value `a' is a NaN; | ||
| 885 | +| otherwise returns 0. | ||
| 886 | +*----------------------------------------------------------------------------*/ | ||
| 887 | + | ||
| 888 | +flag float64_is_nan( float64 a ) | ||
| 889 | +{ | ||
| 890 | + | ||
| 891 | + return ( LIT64( 0xFFE0000000000000 ) < (bits64) ( a<<1 ) ); | ||
| 892 | + | ||
| 893 | +} | ||
| 894 | + | ||
| 895 | +/*---------------------------------------------------------------------------- | ||
| 896 | +| Returns 1 if the double-precision floating-point value `a' is a signaling | ||
| 897 | +| NaN; otherwise returns 0. | ||
| 898 | +*----------------------------------------------------------------------------*/ | ||
| 899 | + | ||
| 900 | +flag float64_is_signaling_nan( float64 a ) | ||
| 901 | +{ | ||
| 902 | + | ||
| 903 | + return | ||
| 904 | + ( ( ( a>>51 ) & 0xFFF ) == 0xFFE ) | ||
| 905 | + && ( a & LIT64( 0x0007FFFFFFFFFFFF ) ); | ||
| 906 | + | ||
| 907 | +} | ||
| 908 | + | ||
| 909 | +/*---------------------------------------------------------------------------- | ||
| 910 | +| Returns the result of converting the double-precision floating-point NaN | ||
| 911 | +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid | ||
| 912 | +| exception is raised. | ||
| 913 | +*----------------------------------------------------------------------------*/ | ||
| 914 | + | ||
| 915 | +static commonNaNT float64ToCommonNaN( float64 a ) | ||
| 916 | +{ | ||
| 917 | + commonNaNT z; | ||
| 918 | + | ||
| 919 | + if ( float64_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 920 | + z.sign = a>>63; | ||
| 921 | + z.low = 0; | ||
| 922 | + z.high = a<<12; | ||
| 923 | + return z; | ||
| 924 | + | ||
| 925 | +} | ||
| 926 | + | ||
| 927 | +/*---------------------------------------------------------------------------- | ||
| 928 | +| Returns the result of converting the canonical NaN `a' to the double- | ||
| 929 | +| precision floating-point format. | ||
| 930 | +*----------------------------------------------------------------------------*/ | ||
| 931 | + | ||
| 932 | +static float64 commonNaNToFloat64( commonNaNT a ) | ||
| 933 | +{ | ||
| 934 | + | ||
| 935 | + return | ||
| 936 | + ( ( (bits64) a.sign )<<63 ) | ||
| 937 | + | LIT64( 0x7FF8000000000000 ) | ||
| 938 | + | ( a.high>>12 ); | ||
| 939 | + | ||
| 940 | +} | ||
| 941 | + | ||
| 942 | +/*---------------------------------------------------------------------------- | ||
| 943 | +| Takes two double-precision floating-point values `a' and `b', one of which | ||
| 944 | +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a | ||
| 945 | +| signaling NaN, the invalid exception is raised. | ||
| 946 | +*----------------------------------------------------------------------------*/ | ||
| 947 | + | ||
| 948 | +static float64 propagateFloat64NaN( float64 a, float64 b ) | ||
| 949 | +{ | ||
| 950 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 951 | + | ||
| 952 | + aIsNaN = float64_is_nan( a ); | ||
| 953 | + aIsSignalingNaN = float64_is_signaling_nan( a ); | ||
| 954 | + bIsNaN = float64_is_nan( b ); | ||
| 955 | + bIsSignalingNaN = float64_is_signaling_nan( b ); | ||
| 956 | + a |= LIT64( 0x0008000000000000 ); | ||
| 957 | + b |= LIT64( 0x0008000000000000 ); | ||
| 958 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 959 | + return bIsSignalingNaN ? b : aIsSignalingNaN ? a : bIsNaN ? b : a; | ||
| 960 | + | ||
| 961 | +} | ||
| 962 | + | ||
| 963 | +#ifdef FLOATX80 | ||
| 964 | + | ||
| 965 | +/*---------------------------------------------------------------------------- | ||
| 966 | +| The pattern for a default generated extended double-precision NaN. The | ||
| 967 | +| `high' and `low' values hold the most- and least-significant bits, | ||
| 968 | +| respectively. | ||
| 969 | +*----------------------------------------------------------------------------*/ | ||
| 970 | +#define floatx80_default_nan_high 0x7FFF | ||
| 971 | +#define floatx80_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) | ||
| 972 | + | ||
| 973 | +/*---------------------------------------------------------------------------- | ||
| 974 | +| Returns 1 if the extended double-precision floating-point value `a' is a | ||
| 975 | +| NaN; otherwise returns 0. | ||
| 976 | +*----------------------------------------------------------------------------*/ | ||
| 977 | + | ||
| 978 | +flag floatx80_is_nan( floatx80 a ) | ||
| 979 | +{ | ||
| 980 | + | ||
| 981 | + return ( ( a.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( a.low<<1 ); | ||
| 982 | + | ||
| 983 | +} | ||
| 984 | + | ||
| 985 | +/*---------------------------------------------------------------------------- | ||
| 986 | +| Returns 1 if the extended double-precision floating-point value `a' is a | ||
| 987 | +| signaling NaN; otherwise returns 0. | ||
| 988 | +*----------------------------------------------------------------------------*/ | ||
| 989 | + | ||
| 990 | +flag floatx80_is_signaling_nan( floatx80 a ) | ||
| 991 | +{ | ||
| 992 | + bits64 aLow; | ||
| 993 | + | ||
| 994 | + aLow = a.low & ~ LIT64( 0x4000000000000000 ); | ||
| 995 | + return | ||
| 996 | + ( ( a.high & 0x7FFF ) == 0x7FFF ) | ||
| 997 | + && (bits64) ( aLow<<1 ) | ||
| 998 | + && ( a.low == aLow ); | ||
| 999 | + | ||
| 1000 | +} | ||
| 1001 | + | ||
| 1002 | +/*---------------------------------------------------------------------------- | ||
| 1003 | +| Returns the result of converting the extended double-precision floating- | ||
| 1004 | +| point NaN `a' to the canonical NaN format. If `a' is a signaling NaN, the | ||
| 1005 | +| invalid exception is raised. | ||
| 1006 | +*----------------------------------------------------------------------------*/ | ||
| 1007 | + | ||
| 1008 | +static commonNaNT floatx80ToCommonNaN( floatx80 a ) | ||
| 1009 | +{ | ||
| 1010 | + commonNaNT z; | ||
| 1011 | + | ||
| 1012 | + if ( floatx80_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 1013 | + z.sign = a.high>>15; | ||
| 1014 | + z.low = 0; | ||
| 1015 | + z.high = a.low<<1; | ||
| 1016 | + return z; | ||
| 1017 | + | ||
| 1018 | +} | ||
| 1019 | + | ||
| 1020 | +/*---------------------------------------------------------------------------- | ||
| 1021 | +| Returns the result of converting the canonical NaN `a' to the extended | ||
| 1022 | +| double-precision floating-point format. | ||
| 1023 | +*----------------------------------------------------------------------------*/ | ||
| 1024 | + | ||
| 1025 | +static floatx80 commonNaNToFloatx80( commonNaNT a ) | ||
| 1026 | +{ | ||
| 1027 | + floatx80 z; | ||
| 1028 | + | ||
| 1029 | + z.low = LIT64( 0xC000000000000000 ) | ( a.high>>1 ); | ||
| 1030 | + z.high = ( ( (bits16) a.sign )<<15 ) | 0x7FFF; | ||
| 1031 | + return z; | ||
| 1032 | + | ||
| 1033 | +} | ||
| 1034 | + | ||
| 1035 | +/*---------------------------------------------------------------------------- | ||
| 1036 | +| Takes two extended double-precision floating-point values `a' and `b', one | ||
| 1037 | +| of which is a NaN, and returns the appropriate NaN result. If either `a' or | ||
| 1038 | +| `b' is a signaling NaN, the invalid exception is raised. | ||
| 1039 | +*----------------------------------------------------------------------------*/ | ||
| 1040 | + | ||
| 1041 | +static floatx80 propagateFloatx80NaN( floatx80 a, floatx80 b ) | ||
| 1042 | +{ | ||
| 1043 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 1044 | + | ||
| 1045 | + aIsNaN = floatx80_is_nan( a ); | ||
| 1046 | + aIsSignalingNaN = floatx80_is_signaling_nan( a ); | ||
| 1047 | + bIsNaN = floatx80_is_nan( b ); | ||
| 1048 | + bIsSignalingNaN = floatx80_is_signaling_nan( b ); | ||
| 1049 | + a.low |= LIT64( 0xC000000000000000 ); | ||
| 1050 | + b.low |= LIT64( 0xC000000000000000 ); | ||
| 1051 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 1052 | + return bIsSignalingNaN ? b : aIsSignalingNaN ? a : bIsNaN ? b : a; | ||
| 1053 | + | ||
| 1054 | +} | ||
| 1055 | + | ||
| 1056 | +#endif | ||
| 1057 | + | ||
| 1058 | +#ifdef FLOAT128 | ||
| 1059 | + | ||
| 1060 | +/*---------------------------------------------------------------------------- | ||
| 1061 | +| The pattern for a default generated quadruple-precision NaN. The `high' and | ||
| 1062 | +| `low' values hold the most- and least-significant bits, respectively. | ||
| 1063 | +*----------------------------------------------------------------------------*/ | ||
| 1064 | +#define float128_default_nan_high LIT64( 0x7FFFFFFFFFFFFFFF ) | ||
| 1065 | +#define float128_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) | ||
| 1066 | + | ||
| 1067 | +/*---------------------------------------------------------------------------- | ||
| 1068 | +| Returns 1 if the quadruple-precision floating-point value `a' is a NaN; | ||
| 1069 | +| otherwise returns 0. | ||
| 1070 | +*----------------------------------------------------------------------------*/ | ||
| 1071 | + | ||
| 1072 | +flag float128_is_nan( float128 a ) | ||
| 1073 | +{ | ||
| 1074 | + | ||
| 1075 | + return | ||
| 1076 | + ( LIT64( 0xFFFE000000000000 ) <= (bits64) ( a.high<<1 ) ) | ||
| 1077 | + && ( a.low || ( a.high & LIT64( 0x0000FFFFFFFFFFFF ) ) ); | ||
| 1078 | + | ||
| 1079 | +} | ||
| 1080 | + | ||
| 1081 | +/*---------------------------------------------------------------------------- | ||
| 1082 | +| Returns 1 if the quadruple-precision floating-point value `a' is a | ||
| 1083 | +| signaling NaN; otherwise returns 0. | ||
| 1084 | +*----------------------------------------------------------------------------*/ | ||
| 1085 | + | ||
| 1086 | +flag float128_is_signaling_nan( float128 a ) | ||
| 1087 | +{ | ||
| 1088 | + | ||
| 1089 | + return | ||
| 1090 | + ( ( ( a.high>>47 ) & 0xFFFF ) == 0xFFFE ) | ||
| 1091 | + && ( a.low || ( a.high & LIT64( 0x00007FFFFFFFFFFF ) ) ); | ||
| 1092 | + | ||
| 1093 | +} | ||
| 1094 | + | ||
| 1095 | +/*---------------------------------------------------------------------------- | ||
| 1096 | +| Returns the result of converting the quadruple-precision floating-point NaN | ||
| 1097 | +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid | ||
| 1098 | +| exception is raised. | ||
| 1099 | +*----------------------------------------------------------------------------*/ | ||
| 1100 | + | ||
| 1101 | +static commonNaNT float128ToCommonNaN( float128 a ) | ||
| 1102 | +{ | ||
| 1103 | + commonNaNT z; | ||
| 1104 | + | ||
| 1105 | + if ( float128_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); | ||
| 1106 | + z.sign = a.high>>63; | ||
| 1107 | + shortShift128Left( a.high, a.low, 16, &z.high, &z.low ); | ||
| 1108 | + return z; | ||
| 1109 | + | ||
| 1110 | +} | ||
| 1111 | + | ||
| 1112 | +/*---------------------------------------------------------------------------- | ||
| 1113 | +| Returns the result of converting the canonical NaN `a' to the quadruple- | ||
| 1114 | +| precision floating-point format. | ||
| 1115 | +*----------------------------------------------------------------------------*/ | ||
| 1116 | + | ||
| 1117 | +static float128 commonNaNToFloat128( commonNaNT a ) | ||
| 1118 | +{ | ||
| 1119 | + float128 z; | ||
| 1120 | + | ||
| 1121 | + shift128Right( a.high, a.low, 16, &z.high, &z.low ); | ||
| 1122 | + z.high |= ( ( (bits64) a.sign )<<63 ) | LIT64( 0x7FFF800000000000 ); | ||
| 1123 | + return z; | ||
| 1124 | + | ||
| 1125 | +} | ||
| 1126 | + | ||
| 1127 | +/*---------------------------------------------------------------------------- | ||
| 1128 | +| Takes two quadruple-precision floating-point values `a' and `b', one of | ||
| 1129 | +| which is a NaN, and returns the appropriate NaN result. If either `a' or | ||
| 1130 | +| `b' is a signaling NaN, the invalid exception is raised. | ||
| 1131 | +*----------------------------------------------------------------------------*/ | ||
| 1132 | + | ||
| 1133 | +static float128 propagateFloat128NaN( float128 a, float128 b ) | ||
| 1134 | +{ | ||
| 1135 | + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; | ||
| 1136 | + | ||
| 1137 | + aIsNaN = float128_is_nan( a ); | ||
| 1138 | + aIsSignalingNaN = float128_is_signaling_nan( a ); | ||
| 1139 | + bIsNaN = float128_is_nan( b ); | ||
| 1140 | + bIsSignalingNaN = float128_is_signaling_nan( b ); | ||
| 1141 | + a.high |= LIT64( 0x0000800000000000 ); | ||
| 1142 | + b.high |= LIT64( 0x0000800000000000 ); | ||
| 1143 | + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); | ||
| 1144 | + return bIsSignalingNaN ? b : aIsSignalingNaN ? a : bIsNaN ? b : a; | ||
| 1145 | + | ||
| 1146 | +} | ||
| 1147 | + | ||
| 1148 | +#endif | ||
| 1149 | + | ||
| 1150 | diff --git a/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat.h b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat.h | ||
| 1151 | new file mode 100644 | ||
| 1152 | index 0000000..5b7cb1c | ||
| 1153 | --- /dev/null | ||
| 1154 | +++ b/SoftFloat-2b/softfloat/bits64/powerpc-GCC/softfloat.h | ||
| 1155 | @@ -0,0 +1,269 @@ | ||
| 1156 | +/* | ||
| 1157 | + * This file is derived from softfloat/bits64/386-Win32-GCC/softfloat.h, | ||
| 1158 | + * the copyright for that material belongs to the original owners. | ||
| 1159 | + * | ||
| 1160 | + * Additional material and changes where applicable is: | ||
| 1161 | + * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved. | ||
| 1162 | + * | ||
| 1163 | + * Author: Ebony Zhu, <ebony.zhu@freescale.com> | ||
| 1164 | + * Yu Liu, <yu.liu@freescale.com> | ||
| 1165 | + */ | ||
| 1166 | + | ||
| 1167 | +/*============================================================================ | ||
| 1168 | + | ||
| 1169 | +This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic | ||
| 1170 | +Package, Release 2b. | ||
| 1171 | + | ||
| 1172 | +Written by John R. Hauser. This work was made possible in part by the | ||
| 1173 | +International Computer Science Institute, located at Suite 600, 1947 Center | ||
| 1174 | +Street, Berkeley, California 94704. Funding was partially provided by the | ||
| 1175 | +National Science Foundation under grant MIP-9311980. The original version | ||
| 1176 | +of this code was written as part of a project to build a fixed-point vector | ||
| 1177 | +processor in collaboration with the University of California at Berkeley, | ||
| 1178 | +overseen by Profs. Nelson Morgan and John Wawrzynek. More information | ||
| 1179 | +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | ||
| 1180 | +arithmetic/SoftFloat.html'. | ||
| 1181 | + | ||
| 1182 | +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | ||
| 1183 | +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | ||
| 1184 | +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | ||
| 1185 | +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | ||
| 1186 | +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | ||
| 1187 | +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | ||
| 1188 | +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | ||
| 1189 | +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | ||
| 1190 | + | ||
| 1191 | +Derivative works are acceptable, even for commercial purposes, so long as | ||
| 1192 | +(1) the source code for the derivative work includes prominent notice that | ||
| 1193 | +the work is derivative, and (2) the source code includes prominent notice with | ||
| 1194 | +these four paragraphs for those parts of this code that are retained. | ||
| 1195 | + | ||
| 1196 | +=============================================================================*/ | ||
| 1197 | + | ||
| 1198 | +/*---------------------------------------------------------------------------- | ||
| 1199 | +| The macro `FLOATX80' must be defined to enable the extended double-precision | ||
| 1200 | +| floating-point format `floatx80'. If this macro is not defined, the | ||
| 1201 | +| `floatx80' type will not be defined, and none of the functions that either | ||
| 1202 | +| input or output the `floatx80' type will be defined. The same applies to | ||
| 1203 | +| the `FLOAT128' macro and the quadruple-precision format `float128'. | ||
| 1204 | +*----------------------------------------------------------------------------*/ | ||
| 1205 | +#define FLOATX80 | ||
| 1206 | +#define FLOAT128 | ||
| 1207 | + | ||
| 1208 | +/*---------------------------------------------------------------------------- | ||
| 1209 | +| Software IEC/IEEE floating-point types. | ||
| 1210 | +*----------------------------------------------------------------------------*/ | ||
| 1211 | +typedef unsigned int float32; | ||
| 1212 | +typedef unsigned long long float64; | ||
| 1213 | +#ifdef FLOATX80 | ||
| 1214 | +typedef struct { | ||
| 1215 | + unsigned short high; | ||
| 1216 | + unsigned long long low; | ||
| 1217 | +} floatx80; | ||
| 1218 | +#endif | ||
| 1219 | +#ifdef FLOAT128 | ||
| 1220 | +typedef struct { | ||
| 1221 | + unsigned long long high, low; | ||
| 1222 | +} float128; | ||
| 1223 | +#endif | ||
| 1224 | + | ||
| 1225 | +/*---------------------------------------------------------------------------- | ||
| 1226 | +| Software IEC/IEEE floating-point underflow tininess-detection mode. | ||
| 1227 | +*----------------------------------------------------------------------------*/ | ||
| 1228 | +extern int float_detect_tininess; | ||
| 1229 | +enum { | ||
| 1230 | + float_tininess_after_rounding = 0, | ||
| 1231 | + float_tininess_before_rounding = 1 | ||
| 1232 | +}; | ||
| 1233 | + | ||
| 1234 | +/*---------------------------------------------------------------------------- | ||
| 1235 | +| Software IEC/IEEE floating-point rounding mode. | ||
| 1236 | +*----------------------------------------------------------------------------*/ | ||
| 1237 | +extern int float_rounding_mode; | ||
| 1238 | +enum { | ||
| 1239 | + float_round_nearest_even = 0, | ||
| 1240 | + float_round_to_zero = 1, | ||
| 1241 | + float_round_up = 2, | ||
| 1242 | + float_round_down = 3 | ||
| 1243 | +}; | ||
| 1244 | + | ||
| 1245 | +/*---------------------------------------------------------------------------- | ||
| 1246 | +| Software IEC/IEEE floating-point exception flags. | ||
| 1247 | +*----------------------------------------------------------------------------*/ | ||
| 1248 | +extern int float_exception_flags; | ||
| 1249 | +enum { | ||
| 1250 | + float_flag_inexact = 1, | ||
| 1251 | + float_flag_divbyzero = 2, | ||
| 1252 | + float_flag_underflow = 4, | ||
| 1253 | + float_flag_overflow = 8, | ||
| 1254 | + float_flag_invalid = 16 | ||
| 1255 | +}; | ||
| 1256 | + | ||
| 1257 | +/*---------------------------------------------------------------------------- | ||
| 1258 | +| Routine to raise any or all of the software IEC/IEEE floating-point | ||
| 1259 | +| exception flags. | ||
| 1260 | +*----------------------------------------------------------------------------*/ | ||
| 1261 | +void float_raise( int ); | ||
| 1262 | + | ||
| 1263 | +/*---------------------------------------------------------------------------- | ||
| 1264 | +| Software IEC/IEEE integer-to-floating-point conversion routines. | ||
| 1265 | +*----------------------------------------------------------------------------*/ | ||
| 1266 | +float32 int32_to_float32( int ); | ||
| 1267 | +float64 int32_to_float64( int ); | ||
| 1268 | +#ifdef FLOATX80 | ||
| 1269 | +floatx80 int32_to_floatx80( int ); | ||
| 1270 | +#endif | ||
| 1271 | +#ifdef FLOAT128 | ||
| 1272 | +float128 int32_to_float128( int ); | ||
| 1273 | +#endif | ||
| 1274 | +float32 int64_to_float32( long long ); | ||
| 1275 | +float64 int64_to_float64( long long ); | ||
| 1276 | +#ifdef FLOATX80 | ||
| 1277 | +floatx80 int64_to_floatx80( long long ); | ||
| 1278 | +#endif | ||
| 1279 | +#ifdef FLOAT128 | ||
| 1280 | +float128 int64_to_float128( long long ); | ||
| 1281 | +#endif | ||
| 1282 | + | ||
| 1283 | +/*---------------------------------------------------------------------------- | ||
| 1284 | +| Software IEC/IEEE single-precision conversion routines. | ||
| 1285 | +*----------------------------------------------------------------------------*/ | ||
| 1286 | +int float32_to_int32( float32 ); | ||
| 1287 | +int float32_to_int32_round_to_zero( float32 ); | ||
| 1288 | +long long float32_to_int64( float32 ); | ||
| 1289 | +long long float32_to_int64_round_to_zero( float32 ); | ||
| 1290 | +float64 float32_to_float64( float32 ); | ||
| 1291 | +#ifdef FLOATX80 | ||
| 1292 | +floatx80 float32_to_floatx80( float32 ); | ||
| 1293 | +#endif | ||
| 1294 | +#ifdef FLOAT128 | ||
| 1295 | +float128 float32_to_float128( float32 ); | ||
| 1296 | +#endif | ||
| 1297 | + | ||
| 1298 | +/*---------------------------------------------------------------------------- | ||
| 1299 | +| Software IEC/IEEE single-precision operations. | ||
| 1300 | +*----------------------------------------------------------------------------*/ | ||
| 1301 | +float32 float32_round_to_int( float32 ); | ||
| 1302 | +float32 float32_add( float32, float32 ); | ||
| 1303 | +float32 float32_sub( float32, float32 ); | ||
| 1304 | +float32 float32_mul( float32, float32 ); | ||
| 1305 | +float32 float32_div( float32, float32 ); | ||
| 1306 | +float32 float32_rem( float32, float32 ); | ||
| 1307 | +float32 float32_sqrt( float32 ); | ||
| 1308 | +int float32_eq( float32, float32 ); | ||
| 1309 | +int float32_le( float32, float32 ); | ||
| 1310 | +int float32_lt( float32, float32 ); | ||
| 1311 | +int float32_eq_signaling( float32, float32 ); | ||
| 1312 | +int float32_le_quiet( float32, float32 ); | ||
| 1313 | +int float32_lt_quiet( float32, float32 ); | ||
| 1314 | +int float32_is_signaling_nan( float32 ); | ||
| 1315 | + | ||
| 1316 | +/*---------------------------------------------------------------------------- | ||
| 1317 | +| Software IEC/IEEE double-precision conversion routines. | ||
| 1318 | +*----------------------------------------------------------------------------*/ | ||
| 1319 | +int float64_to_int32( float64 ); | ||
| 1320 | +int float64_to_int32_round_to_zero( float64 ); | ||
| 1321 | +long long float64_to_int64( float64 ); | ||
| 1322 | +long long float64_to_int64_round_to_zero( float64 ); | ||
| 1323 | +float32 float64_to_float32( float64 ); | ||
| 1324 | +#ifdef FLOATX80 | ||
| 1325 | +floatx80 float64_to_floatx80( float64 ); | ||
| 1326 | +#endif | ||
| 1327 | +#ifdef FLOAT128 | ||
| 1328 | +float128 float64_to_float128( float64 ); | ||
| 1329 | +#endif | ||
| 1330 | + | ||
| 1331 | +/*---------------------------------------------------------------------------- | ||
| 1332 | +| Software IEC/IEEE double-precision operations. | ||
| 1333 | +*----------------------------------------------------------------------------*/ | ||
| 1334 | +float64 float64_round_to_int( float64 ); | ||
| 1335 | +float64 float64_add( float64, float64 ); | ||
| 1336 | +float64 float64_sub( float64, float64 ); | ||
| 1337 | +float64 float64_mul( float64, float64 ); | ||
| 1338 | +float64 float64_div( float64, float64 ); | ||
| 1339 | +float64 float64_rem( float64, float64 ); | ||
| 1340 | +float64 float64_sqrt( float64 ); | ||
| 1341 | +int float64_eq( float64, float64 ); | ||
| 1342 | +int float64_le( float64, float64 ); | ||
| 1343 | +int float64_lt( float64, float64 ); | ||
| 1344 | +int float64_eq_signaling( float64, float64 ); | ||
| 1345 | +int float64_le_quiet( float64, float64 ); | ||
| 1346 | +int float64_lt_quiet( float64, float64 ); | ||
| 1347 | +int float64_is_signaling_nan( float64 ); | ||
| 1348 | + | ||
| 1349 | +#ifdef FLOATX80 | ||
| 1350 | + | ||
| 1351 | +/*---------------------------------------------------------------------------- | ||
| 1352 | +| Software IEC/IEEE extended double-precision conversion routines. | ||
| 1353 | +*----------------------------------------------------------------------------*/ | ||
| 1354 | +int floatx80_to_int32( floatx80 ); | ||
| 1355 | +int floatx80_to_int32_round_to_zero( floatx80 ); | ||
| 1356 | +long long floatx80_to_int64( floatx80 ); | ||
| 1357 | +long long floatx80_to_int64_round_to_zero( floatx80 ); | ||
| 1358 | +float32 floatx80_to_float32( floatx80 ); | ||
| 1359 | +float64 floatx80_to_float64( floatx80 ); | ||
| 1360 | +#ifdef FLOAT128 | ||
| 1361 | +float128 floatx80_to_float128( floatx80 ); | ||
| 1362 | +#endif | ||
| 1363 | + | ||
| 1364 | +/*---------------------------------------------------------------------------- | ||
| 1365 | +| Software IEC/IEEE extended double-precision rounding precision. Valid | ||
| 1366 | +| values are 32, 64, and 80. | ||
| 1367 | +*----------------------------------------------------------------------------*/ | ||
| 1368 | +extern int floatx80_rounding_precision; | ||
| 1369 | + | ||
| 1370 | +/*---------------------------------------------------------------------------- | ||
| 1371 | +| Software IEC/IEEE extended double-precision operations. | ||
| 1372 | +*----------------------------------------------------------------------------*/ | ||
| 1373 | +floatx80 floatx80_round_to_int( floatx80 ); | ||
| 1374 | +floatx80 floatx80_add( floatx80, floatx80 ); | ||
| 1375 | +floatx80 floatx80_sub( floatx80, floatx80 ); | ||
| 1376 | +floatx80 floatx80_mul( floatx80, floatx80 ); | ||
| 1377 | +floatx80 floatx80_div( floatx80, floatx80 ); | ||
| 1378 | +floatx80 floatx80_rem( floatx80, floatx80 ); | ||
| 1379 | +floatx80 floatx80_sqrt( floatx80 ); | ||
| 1380 | +int floatx80_eq( floatx80, floatx80 ); | ||
| 1381 | +int floatx80_le( floatx80, floatx80 ); | ||
| 1382 | +int floatx80_lt( floatx80, floatx80 ); | ||
| 1383 | +int floatx80_eq_signaling( floatx80, floatx80 ); | ||
| 1384 | +int floatx80_le_quiet( floatx80, floatx80 ); | ||
| 1385 | +int floatx80_lt_quiet( floatx80, floatx80 ); | ||
| 1386 | +int floatx80_is_signaling_nan( floatx80 ); | ||
| 1387 | + | ||
| 1388 | +#endif | ||
| 1389 | + | ||
| 1390 | +#ifdef FLOAT128 | ||
| 1391 | + | ||
| 1392 | +/*---------------------------------------------------------------------------- | ||
| 1393 | +| Software IEC/IEEE quadruple-precision conversion routines. | ||
| 1394 | +*----------------------------------------------------------------------------*/ | ||
| 1395 | +int float128_to_int32( float128 ); | ||
| 1396 | +int float128_to_int32_round_to_zero( float128 ); | ||
| 1397 | +long long float128_to_int64( float128 ); | ||
| 1398 | +long long float128_to_int64_round_to_zero( float128 ); | ||
| 1399 | +float32 float128_to_float32( float128 ); | ||
| 1400 | +float64 float128_to_float64( float128 ); | ||
| 1401 | +#ifdef FLOATX80 | ||
| 1402 | +floatx80 float128_to_floatx80( float128 ); | ||
| 1403 | +#endif | ||
| 1404 | + | ||
| 1405 | +/*---------------------------------------------------------------------------- | ||
| 1406 | +| Software IEC/IEEE quadruple-precision operations. | ||
| 1407 | +*----------------------------------------------------------------------------*/ | ||
| 1408 | +float128 float128_round_to_int( float128 ); | ||
| 1409 | +float128 float128_add( float128, float128 ); | ||
| 1410 | +float128 float128_sub( float128, float128 ); | ||
| 1411 | +float128 float128_mul( float128, float128 ); | ||
| 1412 | +float128 float128_div( float128, float128 ); | ||
| 1413 | +float128 float128_rem( float128, float128 ); | ||
| 1414 | +float128 float128_sqrt( float128 ); | ||
| 1415 | +int float128_eq( float128, float128 ); | ||
| 1416 | +int float128_le( float128, float128 ); | ||
| 1417 | +int float128_lt( float128, float128 ); | ||
| 1418 | +int float128_eq_signaling( float128, float128 ); | ||
| 1419 | +int float128_le_quiet( float128, float128 ); | ||
| 1420 | +int float128_lt_quiet( float128, float128 ); | ||
| 1421 | +int float128_is_signaling_nan( float128 ); | ||
| 1422 | + | ||
| 1423 | +#endif | ||
| 1424 | + | ||
| 1425 | -- | ||
| 1426 | 1.5.4 | ||
| 1427 | |||
