WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/newlib/libc/include/machine/ieeefp.h

Rev	Author	Line No.	Line
4349	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
4921	Serge	72	#if defined (__aarch64__)
		73	#if defined (__AARCH64EL__)
		74	#define __IEEE_LITTLE_ENDIAN
		75	#else
		76	#define __IEEE_BIG_ENDIAN
		77	#endif
		78	#endif
		79
		80	#ifdef __epiphany__
		81	#define __IEEE_LITTLE_ENDIAN
		82	#define Sudden_Underflow 1
		83	#endif
		84
4349	Serge	85	#ifdef __hppa__
		86	#define __IEEE_BIG_ENDIAN
		87	#endif
		88
4921	Serge	89	#ifdef __nds32__
		90	#ifdef __big_endian__
		91	#define __IEEE_BIG_ENDIAN
		92	#else
		93	#define __IEEE_LITTLE_ENDIAN
		94	#endif
		95	#endif
		96
4349	Serge	97	#ifdef __SPU__
		98	#define __IEEE_BIG_ENDIAN
		99
		100	#define isfinite(__y) \
		101	(__extension__ ({int __cy; \
		102	(sizeof (__y) == sizeof (float)) ? (1) : \
		103	(__cy = fpclassify(__y)) != FP_INFINITE && __cy != FP_NAN;}))
		104
		105	#define isinf(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isinfd(__x))
		106	#define isnan(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isnand(__x))
		107
		108	/*
		109	* Macros for use in ieeefp.h. We can't just define the real ones here
		110	* (like those above) as we have name space issues when this is not
		111	* included via generic the ieeefp.h.
		112	*/
		113	#define __ieeefp_isnanf(x) 0
		114	#define __ieeefp_isinff(x) 0
		115	#define __ieeefp_finitef(x) 1
		116	#endif
		117
		118	#ifdef __sparc__
		119	#ifdef __LITTLE_ENDIAN_DATA__
		120	#define __IEEE_LITTLE_ENDIAN
		121	#else
		122	#define __IEEE_BIG_ENDIAN
		123	#endif
		124	#endif
		125
		126	#if defined(__m68k__) \|\| defined(__mc68000__)
		127	#define __IEEE_BIG_ENDIAN
		128	#endif
		129
		130	#if defined(__mc68hc11__) \|\| defined(__mc68hc12__) \|\| defined(__mc68hc1x__)
		131	#define __IEEE_BIG_ENDIAN
		132	#ifdef __HAVE_SHORT_DOUBLE__
		133	# define _DOUBLE_IS_32BITS
		134	#endif
		135	#endif
		136
		137	#if defined (__H8300__) \|\| defined (__H8300H__) \|\| defined (__H8300S__) \|\| defined (__H8500__) \|\| defined (__H8300SX__)
		138	#define __IEEE_BIG_ENDIAN
		139	#define _FLOAT_ARG float
		140	#define _DOUBLE_IS_32BITS
		141	#endif
		142
		143	#if defined (__xc16x__) \|\| defined (__xc16xL__) \|\| defined (__xc16xS__)
		144	#define __IEEE_LITTLE_ENDIAN
		145	#define _FLOAT_ARG float
		146	#define _DOUBLE_IS_32BITS
		147	#endif
		148
		149
		150	#ifdef __sh__
		151	#ifdef __LITTLE_ENDIAN__
		152	#define __IEEE_LITTLE_ENDIAN
		153	#else
		154	#define __IEEE_BIG_ENDIAN
		155	#endif
		156	#if defined(__SH2E__) \|\| defined(__SH3E__) \|\| defined(__SH4_SINGLE_ONLY__) \|\| defined(__SH2A_SINGLE_ONLY__)
		157	#define _DOUBLE_IS_32BITS
		158	#endif
		159	#endif
		160
		161	#ifdef _AM29K
		162	#define __IEEE_BIG_ENDIAN
		163	#endif
		164
		165	#ifdef _WIN32
		166	#define __IEEE_LITTLE_ENDIAN
		167	#endif
		168
		169	#ifdef __i386__
		170	#define __IEEE_LITTLE_ENDIAN
		171	#endif
		172
		173	#ifdef __i960__
		174	#define __IEEE_LITTLE_ENDIAN
		175	#endif
		176
		177	#ifdef __lm32__
		178	#define __IEEE_BIG_ENDIAN
		179	#endif
		180
		181	#ifdef __M32R__
		182	#define __IEEE_BIG_ENDIAN
		183	#endif
		184
		185	#if defined(_C4x) \|\| defined(_C3x)
		186	#define __IEEE_BIG_ENDIAN
		187	#define _DOUBLE_IS_32BITS
		188	#endif
		189
		190	#ifdef __TMS320C6X__
		191	#ifdef _BIG_ENDIAN
		192	#define __IEEE_BIG_ENDIAN
		193	#else
		194	#define __IEEE_LITTLE_ENDIAN
		195	#endif
		196	#endif
		197
		198	#ifdef __TIC80__
		199	#define __IEEE_LITTLE_ENDIAN
		200	#endif
		201
		202	#ifdef __MIPSEL__
		203	#define __IEEE_LITTLE_ENDIAN
		204	#endif
		205	#ifdef __MIPSEB__
		206	#define __IEEE_BIG_ENDIAN
		207	#endif
		208
		209	#ifdef __MMIX__
		210	#define __IEEE_BIG_ENDIAN
		211	#endif
		212
		213	#ifdef __D30V__
		214	#define __IEEE_BIG_ENDIAN
		215	#endif
		216
		217	/* necv70 was __IEEE_LITTLE_ENDIAN. */
		218
		219	#ifdef __W65__
		220	#define __IEEE_LITTLE_ENDIAN
		221	#define _DOUBLE_IS_32BITS
		222	#endif
		223
		224	#if defined(__Z8001__) \|\| defined(__Z8002__)
		225	#define __IEEE_BIG_ENDIAN
		226	#endif
		227
		228	#ifdef __m88k__
		229	#define __IEEE_BIG_ENDIAN
		230	#endif
		231
		232	#ifdef __mn10300__
		233	#define __IEEE_LITTLE_ENDIAN
		234	#endif
		235
		236	#ifdef __mn10200__
		237	#define __IEEE_LITTLE_ENDIAN
		238	#define _DOUBLE_IS_32BITS
		239	#endif
		240
		241	#ifdef __v800
		242	#define __IEEE_LITTLE_ENDIAN
		243	#endif
		244
		245	#ifdef __v850
		246	#define __IEEE_LITTLE_ENDIAN
		247	#endif
		248
		249	#ifdef __D10V__
		250	#define __IEEE_BIG_ENDIAN
		251	#if __DOUBLE__ == 32
		252	#define _DOUBLE_IS_32BITS
		253	#endif
		254	#endif
		255
		256	#ifdef __PPC__
		257	#if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) \|\| (defined(_AIX) && _AIX)
		258	#define __IEEE_BIG_ENDIAN
		259	#else
		260	#if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) \|\| (defined(__sun__) && __sun__) \|\| (defined(_WIN32) && _WIN32)
		261	#define __IEEE_LITTLE_ENDIAN
		262	#endif
		263	#endif
		264	#endif
		265
		266	#ifdef __xstormy16__
		267	#define __IEEE_LITTLE_ENDIAN
		268	#endif
		269
		270	#ifdef __arc__
		271	#ifdef __big_endian__
		272	#define __IEEE_BIG_ENDIAN
		273	#else
		274	#define __IEEE_LITTLE_ENDIAN
		275	#endif
		276	#endif
		277
		278	#ifdef __CRX__
		279	#define __IEEE_LITTLE_ENDIAN
		280	#endif
		281
		282	#ifdef __fr30__
		283	#define __IEEE_BIG_ENDIAN
		284	#endif
		285
		286	#ifdef __mcore__
		287	#define __IEEE_BIG_ENDIAN
		288	#endif
		289
		290	#ifdef __mt__
		291	#define __IEEE_BIG_ENDIAN
		292	#endif
		293
		294	#ifdef __frv__
		295	#define __IEEE_BIG_ENDIAN
		296	#endif
		297
		298	#ifdef __moxie__
4921	Serge	299	#ifdef __MOXIE_BIG_ENDIAN__
4349	Serge	300	#define __IEEE_BIG_ENDIAN
4921	Serge	301	#else
		302	#define __IEEE_LITTLE_ENDIAN
4349	Serge	303	#endif
4921	Serge	304	#endif
4349	Serge	305
		306	#ifdef __ia64__
		307	#ifdef __BIG_ENDIAN__
		308	#define __IEEE_BIG_ENDIAN
		309	#else
		310	#define __IEEE_LITTLE_ENDIAN
		311	#endif
		312	#endif
		313
		314	#ifdef __AVR__
		315	#define __IEEE_LITTLE_ENDIAN
		316	#define _DOUBLE_IS_32BITS
		317	#endif
		318
		319	#if defined(__or32__) \|\| defined(__or1k__) \|\| defined(__or16__)
		320	#define __IEEE_BIG_ENDIAN
		321	#endif
		322
		323	#ifdef __IP2K__
		324	#define __IEEE_BIG_ENDIAN
		325	#define __SMALL_BITFIELDS
		326	#define _DOUBLE_IS_32BITS
		327	#endif
		328
		329	#ifdef __iq2000__
		330	#define __IEEE_BIG_ENDIAN
		331	#endif
		332
		333	#ifdef __MAVERICK__
		334	#ifdef __ARMEL__
		335	# define __IEEE_LITTLE_ENDIAN
		336	#else /* must be __ARMEB__ */
		337	# define __IEEE_BIG_ENDIAN
		338	#endif /* __ARMEL__ */
		339	#endif /* __MAVERICK__ */
		340
		341	#ifdef __m32c__
		342	#define __IEEE_LITTLE_ENDIAN
		343	#define __SMALL_BITFIELDS
		344	#endif
		345
		346	#ifdef __CRIS__
		347	#define __IEEE_LITTLE_ENDIAN
		348	#endif
		349
		350	#ifdef __BFIN__
		351	#define __IEEE_LITTLE_ENDIAN
		352	#endif
		353
		354	#ifdef __x86_64__
		355	#define __IEEE_LITTLE_ENDIAN
		356	#endif
		357
		358	#ifdef __mep__
		359	#ifdef __LITTLE_ENDIAN__
		360	#define __IEEE_LITTLE_ENDIAN
		361	#else
		362	#define __IEEE_BIG_ENDIAN
		363	#endif
		364	#endif
		365
		366	#ifdef __MICROBLAZE__
4921	Serge	367	#ifndef __MICROBLAZEEL__
4349	Serge	368	#define __IEEE_BIG_ENDIAN
4921	Serge	369	#else
		370	#define __IEEE_LITTLE_ENDIAN
4349	Serge	371	#endif
4921	Serge	372	#endif
4349	Serge	373
4921	Serge	374	#ifdef __MSP430__
		375	#define __IEEE_LITTLE_ENDIAN
		376	#define __SMALL_BITFIELDS /* 16 Bit INT */
		377	#endif
		378
4349	Serge	379	#ifdef __RL78__
		380	#define __IEEE_LITTLE_ENDIAN
		381	#define __SMALL_BITFIELDS /* 16 Bit INT */
		382	#define _DOUBLE_IS_32BITS
		383	#endif
		384
		385	#ifdef __RX__
		386
		387	#ifdef __RX_BIG_ENDIAN__
		388	#define __IEEE_BIG_ENDIAN
		389	#else
		390	#define __IEEE_LITTLE_ENDIAN
		391	#endif
		392
		393	#ifndef __RX_64BIT_DOUBLES__
		394	#define _DOUBLE_IS_32BITS
		395	#endif
		396
		397	#ifdef __RX_16BIT_INTS__
		398	#define __SMALL_BITFIELDS
		399	#endif
		400
		401	#endif
		402
		403	#if (defined(__CR16__) \|\| defined(__CR16C__) \|\|defined(__CR16CP__))
		404	#define __IEEE_LITTLE_ENDIAN
		405	#define __SMALL_BITFIELDS /* 16 Bit INT */
		406	#endif
		407
4921	Serge	408	#ifdef __NIOS2__
		409	# ifdef __nios2_big_endian__
		410	# define __IEEE_BIG_ENDIAN
		411	# else
		412	# define __IEEE_LITTLE_ENDIAN
		413	# endif
		414	#endif
		415
4349	Serge	416	#ifndef __IEEE_BIG_ENDIAN
		417	#ifndef __IEEE_LITTLE_ENDIAN
		418	#error Endianess not declared!!
		419	#endif /* not __IEEE_LITTLE_ENDIAN */
		420	#endif /* not __IEEE_BIG_ENDIAN */
		421
		422	#endif /* not __IEEE_LITTLE_ENDIAN */
		423	#endif /* not __IEEE_BIG_ENDIAN */
		424

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(root)/contrib/sdk/sources/newlib/libc/include/machine/ieeefp.h – Rev 4921