WebSVN – Kolibri OS – Blame – /programs/develop/libraries/newlib/include/machine/ieeefp.h

Rev	Author	Line No.	Line
1693	serge	1	#ifndef __IEEE_BIG_ENDIAN
		2	#ifndef __IEEE_LITTLE_ENDIAN
		3
		4	/* This file can define macros to choose variations of the IEEE float
		5	format:
		6
		7	_FLT_LARGEST_EXPONENT_IS_NORMAL
		8
		9	Defined if the float format uses the largest exponent for finite
		10	numbers rather than NaN and infinity representations. Such a
		11	format cannot represent NaNs or infinities at all, but it's FLT_MAX
		12	is twice the IEEE value.
		13
		14	_FLT_NO_DENORMALS
		15
		16	Defined if the float format does not support IEEE denormals. Every
		17	float with a zero exponent is taken to be a zero representation.
		18
		19	??? At the moment, there are no equivalent macros above for doubles and
		20	the macros are not fully supported by --enable-newlib-hw-fp.
		21
		22	__IEEE_BIG_ENDIAN
		23
		24	Defined if the float format is big endian. This is mutually exclusive
		25	with __IEEE_LITTLE_ENDIAN.
		26
		27	__IEEE_LITTLE_ENDIAN
		28
		29	Defined if the float format is little endian. This is mutually exclusive
		30	with __IEEE_BIG_ENDIAN.
		31
		32	Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a
		33	platform or error will occur.
		34
		35	__IEEE_BYTES_LITTLE_ENDIAN
		36
		37	This flag is used in conjunction with __IEEE_BIG_ENDIAN to describe a situation
		38	whereby multiple words of an IEEE floating point are in big endian order, but the
		39	words themselves are little endian with respect to the bytes.
		40
		41	_DOUBLE_IS_32BITS
		42
		43	This is used on platforms that support double by using the 32-bit IEEE
		44	float type.
		45
		46	_FLOAT_ARG
		47
		48	This represents what type a float arg is passed as. It is used when the type is
		49	not promoted to double.
		50
		51	*/
		52
		53	#if (defined(__arm__) \|\| defined(__thumb__)) && !defined(__MAVERICK__)
		54	/* ARM traditionally used big-endian words; and within those words the
		55	byte ordering was big or little endian depending upon the target.
		56	Modern floating-point formats are naturally ordered; in this case
		57	__VFP_FP__ will be defined, even if soft-float. */
		58	#ifdef __VFP_FP__
		59	# ifdef __ARMEL__
		60	# define __IEEE_LITTLE_ENDIAN
		61	# else
		62	# define __IEEE_BIG_ENDIAN
		63	# endif
		64	#else
		65	# define __IEEE_BIG_ENDIAN
		66	# ifdef __ARMEL__
		67	# define __IEEE_BYTES_LITTLE_ENDIAN
		68	# endif
		69	#endif
		70	#endif
		71
		72	#ifdef __hppa__
		73	#define __IEEE_BIG_ENDIAN
		74	#endif
		75
		76	#ifdef __SPU__
		77	#define __IEEE_BIG_ENDIAN
		78
		79	#define isfinite(__y) \
		80	(__extension__ ({int __cy; \
		81	(sizeof (__y) == sizeof (float)) ? (1) : \
		82	(__cy = fpclassify(__y)) != FP_INFINITE && __cy != FP_NAN;}))
		83
		84	#define isinf(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isinfd(__x))
		85	#define isnan(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isnand(__x))
		86
		87	/*
		88	* Macros for use in ieeefp.h. We can't just define the real ones here
		89	* (like those above) as we have name space issues when this is not
		90	* included via generic the ieeefp.h.
		91	*/
		92	#define __ieeefp_isnanf(x) 0
		93	#define __ieeefp_isinff(x) 0
		94	#define __ieeefp_finitef(x) 1
		95	#endif
		96
		97	#ifdef __sparc__
		98	#ifdef __LITTLE_ENDIAN_DATA__
		99	#define __IEEE_LITTLE_ENDIAN
		100	#else
		101	#define __IEEE_BIG_ENDIAN
		102	#endif
		103	#endif
		104
		105	#if defined(__m68k__) \|\| defined(__mc68000__)
		106	#define __IEEE_BIG_ENDIAN
		107	#endif
		108
		109	#if defined(__mc68hc11__) \|\| defined(__mc68hc12__) \|\| defined(__mc68hc1x__)
		110	#define __IEEE_BIG_ENDIAN
		111	#ifdef __HAVE_SHORT_DOUBLE__
		112	# define _DOUBLE_IS_32BITS
		113	#endif
		114	#endif
		115
		116	#if defined (__H8300__) \|\| defined (__H8300H__) \|\| defined (__H8300S__) \|\| defined (__H8500__) \|\| defined (__H8300SX__)
		117	#define __IEEE_BIG_ENDIAN
		118	#define _FLOAT_ARG float
		119	#define _DOUBLE_IS_32BITS
		120	#endif
		121
		122	#if defined (__xc16x__) \|\| defined (__xc16xL__) \|\| defined (__xc16xS__)
		123	#define __IEEE_LITTLE_ENDIAN
		124	#define _FLOAT_ARG float
		125	#define _DOUBLE_IS_32BITS
		126	#endif
		127
		128
		129	#ifdef __sh__
		130	#ifdef __LITTLE_ENDIAN__
		131	#define __IEEE_LITTLE_ENDIAN
		132	#else
		133	#define __IEEE_BIG_ENDIAN
		134	#endif
		135	#if defined(__SH2E__) \|\| defined(__SH3E__) \|\| defined(__SH4_SINGLE_ONLY__) \|\| defined(__SH2A_SINGLE_ONLY__)
		136	#define _DOUBLE_IS_32BITS
		137	#endif
		138	#endif
		139
		140	#ifdef _AM29K
		141	#define __IEEE_BIG_ENDIAN
		142	#endif
		143
		144	#ifdef _WIN32
		145	#define __IEEE_LITTLE_ENDIAN
		146	#endif
		147
		148	#ifdef __i386__
		149	#define __IEEE_LITTLE_ENDIAN
		150	#endif
		151
		152	#ifdef __i960__
		153	#define __IEEE_LITTLE_ENDIAN
		154	#endif
		155
		156	#ifdef __lm32__
		157	#define __IEEE_BIG_ENDIAN
		158	#endif
		159
		160	#ifdef __M32R__
		161	#define __IEEE_BIG_ENDIAN
		162	#endif
		163
		164	#if defined(_C4x) \|\| defined(_C3x)
		165	#define __IEEE_BIG_ENDIAN
		166	#define _DOUBLE_IS_32BITS
		167	#endif
		168
		169	#ifdef __TMS320C6X__
		170	#ifdef _BIG_ENDIAN
		171	#define __IEEE_BIG_ENDIAN
		172	#else
		173	#define __IEEE_LITTLE_ENDIAN
		174	#endif
		175	#endif
		176
		177	#ifdef __TIC80__
		178	#define __IEEE_LITTLE_ENDIAN
		179	#endif
		180
		181	#ifdef __MIPSEL__
		182	#define __IEEE_LITTLE_ENDIAN
		183	#endif
		184	#ifdef __MIPSEB__
		185	#define __IEEE_BIG_ENDIAN
		186	#endif
		187
		188	#ifdef __MMIX__
		189	#define __IEEE_BIG_ENDIAN
		190	#endif
		191
		192	#ifdef __D30V__
		193	#define __IEEE_BIG_ENDIAN
		194	#endif
		195
		196	/* necv70 was __IEEE_LITTLE_ENDIAN. */
		197
		198	#ifdef __W65__
		199	#define __IEEE_LITTLE_ENDIAN
		200	#define _DOUBLE_IS_32BITS
		201	#endif
		202
		203	#if defined(__Z8001__) \|\| defined(__Z8002__)
		204	#define __IEEE_BIG_ENDIAN
		205	#endif
		206
		207	#ifdef __m88k__
		208	#define __IEEE_BIG_ENDIAN
		209	#endif
		210
		211	#ifdef __mn10300__
		212	#define __IEEE_LITTLE_ENDIAN
		213	#endif
		214
		215	#ifdef __mn10200__
		216	#define __IEEE_LITTLE_ENDIAN
		217	#define _DOUBLE_IS_32BITS
		218	#endif
		219
		220	#ifdef __v800
		221	#define __IEEE_LITTLE_ENDIAN
		222	#endif
		223
		224	#ifdef __v850
		225	#define __IEEE_LITTLE_ENDIAN
		226	#endif
		227
		228	#ifdef __D10V__
		229	#define __IEEE_BIG_ENDIAN
		230	#if __DOUBLE__ == 32
		231	#define _DOUBLE_IS_32BITS
		232	#endif
		233	#endif
		234
		235	#ifdef __PPC__
		236	#if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) \|\| (defined(_AIX) && _AIX)
		237	#define __IEEE_BIG_ENDIAN
		238	#else
		239	#if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) \|\| (defined(__sun__) && __sun__) \|\| (defined(_WIN32) && _WIN32)
		240	#define __IEEE_LITTLE_ENDIAN
		241	#endif
		242	#endif
		243	#endif
		244
		245	#ifdef __xstormy16__
		246	#define __IEEE_LITTLE_ENDIAN
		247	#endif
		248
		249	#ifdef __arc__
		250	#ifdef __big_endian__
		251	#define __IEEE_BIG_ENDIAN
		252	#else
		253	#define __IEEE_LITTLE_ENDIAN
		254	#endif
		255	#endif
		256
		257	#ifdef __CRX__
		258	#define __IEEE_LITTLE_ENDIAN
		259	#endif
		260
		261	#ifdef __fr30__
		262	#define __IEEE_BIG_ENDIAN
		263	#endif
		264
		265	#ifdef __mcore__
		266	#define __IEEE_BIG_ENDIAN
		267	#endif
		268
		269	#ifdef __mt__
		270	#define __IEEE_BIG_ENDIAN
		271	#endif
		272
		273	#ifdef __frv__
		274	#define __IEEE_BIG_ENDIAN
		275	#endif
		276
		277	#ifdef __moxie__
		278	#define __IEEE_BIG_ENDIAN
		279	#endif
		280
		281	#ifdef __ia64__
		282	#ifdef __BIG_ENDIAN__
		283	#define __IEEE_BIG_ENDIAN
		284	#else
		285	#define __IEEE_LITTLE_ENDIAN
		286	#endif
		287	#endif
		288
		289	#ifdef __AVR__
		290	#define __IEEE_LITTLE_ENDIAN
		291	#define _DOUBLE_IS_32BITS
		292	#endif
		293
		294	#if defined(__or32__) \|\| defined(__or1k__) \|\| defined(__or16__)
		295	#define __IEEE_BIG_ENDIAN
		296	#endif
		297
		298	#ifdef __IP2K__
		299	#define __IEEE_BIG_ENDIAN
		300	#define __SMALL_BITFIELDS
		301	#define _DOUBLE_IS_32BITS
		302	#endif
		303
		304	#ifdef __iq2000__
		305	#define __IEEE_BIG_ENDIAN
		306	#endif
		307
		308	#ifdef __MAVERICK__
		309	#ifdef __ARMEL__
		310	# define __IEEE_LITTLE_ENDIAN
		311	#else /* must be __ARMEB__ */
		312	# define __IEEE_BIG_ENDIAN
		313	#endif /* __ARMEL__ */
		314	#endif /* __MAVERICK__ */
		315
		316	#ifdef __m32c__
		317	#define __IEEE_LITTLE_ENDIAN
		318	#define __SMALL_BITFIELDS
		319	#endif
		320
		321	#ifdef __CRIS__
		322	#define __IEEE_LITTLE_ENDIAN
		323	#endif
		324
		325	#ifdef __BFIN__
		326	#define __IEEE_LITTLE_ENDIAN
		327	#endif
		328
		329	#ifdef __x86_64__
		330	#define __IEEE_LITTLE_ENDIAN
		331	#endif
		332
		333	#ifdef __mep__
		334	#ifdef __LITTLE_ENDIAN__
		335	#define __IEEE_LITTLE_ENDIAN
		336	#else
		337	#define __IEEE_BIG_ENDIAN
		338	#endif
		339	#endif
		340
		341	#ifdef __MICROBLAZE__
		342	#define __IEEE_BIG_ENDIAN
		343	#endif
		344
3065	serge	345	#ifdef __RL78__
		346	#define __IEEE_LITTLE_ENDIAN
		347	#define __SMALL_BITFIELDS /* 16 Bit INT */
		348	#define _DOUBLE_IS_32BITS
		349	#endif
		350
1693	serge	351	#ifdef __RX__
		352
		353	#ifdef __RX_BIG_ENDIAN__
		354	#define __IEEE_BIG_ENDIAN
		355	#else
		356	#define __IEEE_LITTLE_ENDIAN
		357	#endif
		358
		359	#ifndef __RX_64BIT_DOUBLES__
		360	#define _DOUBLE_IS_32BITS
		361	#endif
		362
		363	#ifdef __RX_16BIT_INTS__
		364	#define __SMALL_BITFIELDS
		365	#endif
		366
		367	#endif
		368
2168	serge	369	#if (defined(__CR16__) \|\| defined(__CR16C__) \|\|defined(__CR16CP__))
		370	#define __IEEE_LITTLE_ENDIAN
		371	#define __SMALL_BITFIELDS /* 16 Bit INT */
		372	#endif
		373
1693	serge	374	#ifndef __IEEE_BIG_ENDIAN
		375	#ifndef __IEEE_LITTLE_ENDIAN
		376	#error Endianess not declared!!
		377	#endif /* not __IEEE_LITTLE_ENDIAN */
		378	#endif /* not __IEEE_BIG_ENDIAN */
		379
		380	#endif /* not __IEEE_LITTLE_ENDIAN */
		381	#endif /* not __IEEE_BIG_ENDIAN */
		382

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(root)/programs/develop/libraries/newlib/include/machine/ieeefp.h – Rev 3065