[deliverable/linux.git] / arch / mips / math-emu / ieee754.h

/*
 * MIPS floating point support
 * Copyright (C) 1994-2000 Algorithmics Ltd.
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
 *
 *  Nov 7, 2000
 *  Modification to allow integration with Linux kernel
 *
 *  Kevin D. Kissell, kevink@mips.com and Carsten Langgard, carstenl@mips.com
 *  Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
 */
#ifndef __ARCH_MIPS_MATH_EMU_IEEE754_H
#define __ARCH_MIPS_MATH_EMU_IEEE754_H

#include <linux/compiler.h>
#include <asm/byteorder.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <asm/bitfield.h>

union ieee754dp {
	struct {
		__BITFIELD_FIELD(unsigned int sign:1,
		__BITFIELD_FIELD(unsigned int bexp:11,
		__BITFIELD_FIELD(u64 mant:52,
		;)))
	};
	u64 bits;
};

union ieee754sp {
	struct {
		__BITFIELD_FIELD(unsigned sign:1,
		__BITFIELD_FIELD(unsigned bexp:8,
		__BITFIELD_FIELD(unsigned mant:23,
		;)))
	};
	u32 bits;
};

/*
 * single precision (often aka float)
*/
int ieee754sp_class(union ieee754sp x);

union ieee754sp ieee754sp_abs(union ieee754sp x);
union ieee754sp ieee754sp_neg(union ieee754sp x);

union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y);
union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y);
union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y);
union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);

union ieee754sp ieee754sp_fint(int x);
union ieee754sp ieee754sp_flong(s64 x);
union ieee754sp ieee754sp_fdp(union ieee754dp x);

int ieee754sp_tint(union ieee754sp x);
s64 ieee754sp_tlong(union ieee754sp x);

int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig);

union ieee754sp ieee754sp_sqrt(union ieee754sp x);

union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
				union ieee754sp y);
union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
				union ieee754sp y);
int ieee754sp_2008class(union ieee754sp x);

/*
 * double precision (often aka double)
*/
int ieee754dp_class(union ieee754dp x);

union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y);
union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y);
union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y);
union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y);

union ieee754dp ieee754dp_abs(union ieee754dp x);
union ieee754dp ieee754dp_neg(union ieee754dp x);

union ieee754dp ieee754dp_fint(int x);
union ieee754dp ieee754dp_flong(s64 x);
union ieee754dp ieee754dp_fsp(union ieee754sp x);

int ieee754dp_tint(union ieee754dp x);
s64 ieee754dp_tlong(union ieee754dp x);

int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig);

union ieee754dp ieee754dp_sqrt(union ieee754dp x);

union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
				union ieee754dp y);
union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
				union ieee754dp y);
int ieee754dp_2008class(union ieee754dp x);


/* 5 types of floating point number
*/
enum {
	IEEE754_CLASS_NORM	= 0x00,
	IEEE754_CLASS_ZERO	= 0x01,
	IEEE754_CLASS_DNORM	= 0x02,
	IEEE754_CLASS_INF	= 0x03,
	IEEE754_CLASS_SNAN	= 0x04,
	IEEE754_CLASS_QNAN	= 0x05,
};

/* exception numbers */
#define IEEE754_INEXACT			0x01
#define IEEE754_UNDERFLOW		0x02
#define IEEE754_OVERFLOW		0x04
#define IEEE754_ZERO_DIVIDE		0x08
#define IEEE754_INVALID_OPERATION	0x10

/* cmp operators
*/
#define IEEE754_CLT	0x01
#define IEEE754_CEQ	0x02
#define IEEE754_CGT	0x04
#define IEEE754_CUN	0x08

/*
 * The control status register
 */
struct _ieee754_csr {
	__BITFIELD_FIELD(unsigned fcc:7,	/* condition[7:1] */
	__BITFIELD_FIELD(unsigned nod:1,	/* set 1 for no denormals */
	__BITFIELD_FIELD(unsigned c:1,		/* condition[0] */
	__BITFIELD_FIELD(unsigned pad0:3,
	__BITFIELD_FIELD(unsigned abs2008:1,	/* IEEE 754-2008 ABS/NEG.fmt */
	__BITFIELD_FIELD(unsigned nan2008:1,	/* IEEE 754-2008 NaN mode */
	__BITFIELD_FIELD(unsigned cx:6,		/* exceptions this operation */
	__BITFIELD_FIELD(unsigned mx:5,		/* exception enable  mask */
	__BITFIELD_FIELD(unsigned sx:5,		/* exceptions total */
	__BITFIELD_FIELD(unsigned rm:2,		/* current rounding mode */
	;))))))))))
};
#define ieee754_csr (*(struct _ieee754_csr *)(&current->thread.fpu.fcr31))

static inline unsigned ieee754_getrm(void)
{
	return (ieee754_csr.rm);
}
static inline unsigned ieee754_setrm(unsigned rm)
{
	return (ieee754_csr.rm = rm);
}

/*
 * get current exceptions
 */
static inline unsigned ieee754_getcx(void)
{
	return (ieee754_csr.cx);
}

/* test for current exception condition
 */
static inline int ieee754_cxtest(unsigned n)
{
	return (ieee754_csr.cx & n);
}

/*
 * get sticky exceptions
 */
static inline unsigned ieee754_getsx(void)
{
	return (ieee754_csr.sx);
}

/* clear sticky conditions
*/
static inline unsigned ieee754_clrsx(void)
{
	return (ieee754_csr.sx = 0);
}

/* test for sticky exception condition
 */
static inline int ieee754_sxtest(unsigned n)
{
	return (ieee754_csr.sx & n);
}

/* debugging */
union ieee754sp ieee754sp_dump(char *s, union ieee754sp x);
union ieee754dp ieee754dp_dump(char *s, union ieee754dp x);

#define IEEE754_SPCVAL_PZERO		0	/* +0.0 */
#define IEEE754_SPCVAL_NZERO		1	/* -0.0 */
#define IEEE754_SPCVAL_PONE		2	/* +1.0 */
#define IEEE754_SPCVAL_NONE		3	/* -1.0 */
#define IEEE754_SPCVAL_PTEN		4	/* +10.0 */
#define IEEE754_SPCVAL_NTEN		5	/* -10.0 */
#define IEEE754_SPCVAL_PINFINITY	6	/* +inf */
#define IEEE754_SPCVAL_NINFINITY	7	/* -inf */
#define IEEE754_SPCVAL_INDEF		8	/* quiet NaN */
#define IEEE754_SPCVAL_PMAX		9	/* +max norm */
#define IEEE754_SPCVAL_NMAX		10	/* -max norm */
#define IEEE754_SPCVAL_PMIN		11	/* +min norm */
#define IEEE754_SPCVAL_NMIN		12	/* -min norm */
#define IEEE754_SPCVAL_PMIND		13	/* +min denorm */
#define IEEE754_SPCVAL_NMIND		14	/* -min denorm */
#define IEEE754_SPCVAL_P1E31		15	/* + 1.0e31 */
#define IEEE754_SPCVAL_P1E63		16	/* + 1.0e63 */

extern const union ieee754dp __ieee754dp_spcvals[];
extern const union ieee754sp __ieee754sp_spcvals[];
#define ieee754dp_spcvals ((const union ieee754dp *)__ieee754dp_spcvals)
#define ieee754sp_spcvals ((const union ieee754sp *)__ieee754sp_spcvals)

/*
 * Return infinity with given sign
 */
#define ieee754dp_inf(sn)     (ieee754dp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
#define ieee754dp_zero(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
#define ieee754dp_one(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
#define ieee754dp_ten(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
#define ieee754dp_indef()	(ieee754dp_spcvals[IEEE754_SPCVAL_INDEF])
#define ieee754dp_max(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
#define ieee754dp_min(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
#define ieee754dp_mind(sn)	(ieee754dp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
#define ieee754dp_1e31()	(ieee754dp_spcvals[IEEE754_SPCVAL_P1E31])
#define ieee754dp_1e63()	(ieee754dp_spcvals[IEEE754_SPCVAL_P1E63])

#define ieee754sp_inf(sn)     (ieee754sp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
#define ieee754sp_zero(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
#define ieee754sp_one(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
#define ieee754sp_ten(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
#define ieee754sp_indef()	(ieee754sp_spcvals[IEEE754_SPCVAL_INDEF])
#define ieee754sp_max(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
#define ieee754sp_min(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
#define ieee754sp_mind(sn)	(ieee754sp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
#define ieee754sp_1e31()	(ieee754sp_spcvals[IEEE754_SPCVAL_P1E31])
#define ieee754sp_1e63()	(ieee754sp_spcvals[IEEE754_SPCVAL_P1E63])

/*
 * Indefinite integer value
 */
static inline int ieee754si_indef(void)
{
	return INT_MAX;
}

static inline s64 ieee754di_indef(void)
{
	return S64_MAX;
}

/* result types for xctx.rt */
#define IEEE754_RT_SP	0
#define IEEE754_RT_DP	1
#define IEEE754_RT_XP	2
#define IEEE754_RT_SI	3
#define IEEE754_RT_DI	4

/* compat */
#define ieee754dp_fix(x)	ieee754dp_tint(x)
#define ieee754sp_fix(x)	ieee754sp_tint(x)

#endif /* __ARCH_MIPS_MATH_EMU_IEEE754_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* MIPS floating point support
	3	* Copyright (C) 1994-2000 Algorithmics Ltd.
1da177e4	4	*
1da177e4 LT	5	* This program is free software; you can distribute it and/or modify it
	6	* under the terms of the GNU General Public License (Version 2) as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	12	* for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along
	15	* with this program; if not, write to the Free Software Foundation, Inc.,
3f7cac41	16	* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1da177e4	17	*
1da177e4 LT	18	* Nov 7, 2000
	19	* Modification to allow integration with Linux kernel
	20	*
	21	* Kevin D. Kissell, kevink@mips.com and Carsten Langgard, carstenl@mips.com
	22	* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
cd21dfcf	23	*/
a663bf90 RB	24	#ifndef __ARCH_MIPS_MATH_EMU_IEEE754_H
a663bf90 RB	25	#define __ARCH_MIPS_MATH_EMU_IEEE754_H
1da177e4	26
cae55066	27	#include <linux/compiler.h>
cd21dfcf	28	#include <asm/byteorder.h>
e812a739	29	#include <linux/kernel.h>
1da177e4	30	#include <linux/types.h>
cd21dfcf	31	#include <linux/sched.h>
f80cc08d	32	#include <asm/bitfield.h>
1da177e4	33
2209bcb1	34	union ieee754dp {
1da177e4	35	struct {
f80cc08d RB	36	__BITFIELD_FIELD(unsigned int sign:1,
	37	__BITFIELD_FIELD(unsigned int bexp:11,
	38	__BITFIELD_FIELD(u64 mant:52,
	39	;)))
49548b09	40	};
1da177e4	41	u64 bits;
2209bcb1	42	};
1da177e4	43
2209bcb1	44	union ieee754sp {
49548b09 RB	45	struct {
	46	__BITFIELD_FIELD(unsigned sign:1,
	47	__BITFIELD_FIELD(unsigned bexp:8,
	48	__BITFIELD_FIELD(unsigned mant:23,
	49	;)))
	50	};
1da177e4	51	u32 bits;
2209bcb1	52	};
1da177e4 LT	53
	54	/*
	55	* single precision (often aka float)
	56	*/
2209bcb1	57	int ieee754sp_class(union ieee754sp x);
1da177e4	58
2209bcb1 RB	59	union ieee754sp ieee754sp_abs(union ieee754sp x);
2209bcb1 RB	60	union ieee754sp ieee754sp_neg(union ieee754sp x);
1da177e4	61
2209bcb1 RB	62	union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y);
	63	union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y);
	64	union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y);
	65	union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);
1da177e4	66
2209bcb1	67	union ieee754sp ieee754sp_fint(int x);
2209bcb1	68	union ieee754sp ieee754sp_flong(s64 x);
2209bcb1	69	union ieee754sp ieee754sp_fdp(union ieee754dp x);
1da177e4	70
2209bcb1	71	int ieee754sp_tint(union ieee754sp x);
2209bcb1	72	s64 ieee754sp_tlong(union ieee754sp x);
1da177e4	73
2209bcb1	74	int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig);
1da177e4	75
2209bcb1	76	union ieee754sp ieee754sp_sqrt(union ieee754sp x);
1da177e4	77
e24c3bec MC	78	union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
e24c3bec MC	79	union ieee754sp y);
83d43305 MC	80	union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
83d43305 MC	81	union ieee754sp y);
38db37ba	82	int ieee754sp_2008class(union ieee754sp x);
e24c3bec	83
1da177e4 LT	84	/*
	85	* double precision (often aka double)
	86	*/
2209bcb1	87	int ieee754dp_class(union ieee754dp x);
1da177e4	88
2209bcb1 RB	89	union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y);
	90	union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y);
	91	union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y);
	92	union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y);
1da177e4	93
2209bcb1 RB	94	union ieee754dp ieee754dp_abs(union ieee754dp x);
2209bcb1 RB	95	union ieee754dp ieee754dp_neg(union ieee754dp x);
1da177e4	96
2209bcb1	97	union ieee754dp ieee754dp_fint(int x);
2209bcb1	98	union ieee754dp ieee754dp_flong(s64 x);
2209bcb1	99	union ieee754dp ieee754dp_fsp(union ieee754sp x);
1da177e4	100
2209bcb1	101	int ieee754dp_tint(union ieee754dp x);
2209bcb1	102	s64 ieee754dp_tlong(union ieee754dp x);
1da177e4	103
2209bcb1	104	int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig);
1da177e4	105
2209bcb1	106	union ieee754dp ieee754dp_sqrt(union ieee754dp x);
1da177e4	107
e24c3bec MC	108	union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
e24c3bec MC	109	union ieee754dp y);
83d43305 MC	110	union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
83d43305 MC	111	union ieee754dp y);
38db37ba	112	int ieee754dp_2008class(union ieee754dp x);
1da177e4 LT	113
	114
	115	/* 5 types of floating point number
	116	*/
9e8bad1f RB	117	enum {
	118	IEEE754_CLASS_NORM = 0x00,
	119	IEEE754_CLASS_ZERO = 0x01,
	120	IEEE754_CLASS_DNORM = 0x02,
	121	IEEE754_CLASS_INF = 0x03,
	122	IEEE754_CLASS_SNAN = 0x04,
	123	IEEE754_CLASS_QNAN = 0x05,
	124	};
1da177e4 LT	125
	126	/* exception numbers */
	127	#define IEEE754_INEXACT 0x01
	128	#define IEEE754_UNDERFLOW 0x02
	129	#define IEEE754_OVERFLOW 0x04
	130	#define IEEE754_ZERO_DIVIDE 0x08
	131	#define IEEE754_INVALID_OPERATION 0x10
	132
	133	/* cmp operators
	134	*/
	135	#define IEEE754_CLT 0x01
	136	#define IEEE754_CEQ 0x02
	137	#define IEEE754_CGT 0x04
	138	#define IEEE754_CUN 0x08
	139
cd21dfcf RB	140	/*
	141	* The control status register
	142	*/
	143	struct _ieee754_csr {
f1f3b7eb MR	144	__BITFIELD_FIELD(unsigned fcc:7, /* condition[7:1] */
	145	__BITFIELD_FIELD(unsigned nod:1, /* set 1 for no denormals */
	146	__BITFIELD_FIELD(unsigned c:1, /* condition[0] */
	147	__BITFIELD_FIELD(unsigned pad0:3,
	148	__BITFIELD_FIELD(unsigned abs2008:1, /* IEEE 754-2008 ABS/NEG.fmt */
	149	__BITFIELD_FIELD(unsigned nan2008:1, /* IEEE 754-2008 NaN mode */
f80cc08d RB	150	__BITFIELD_FIELD(unsigned cx:6, /* exceptions this operation */
	151	__BITFIELD_FIELD(unsigned mx:5, /* exception enable mask */
	152	__BITFIELD_FIELD(unsigned sx:5, /* exceptions total */
	153	__BITFIELD_FIELD(unsigned rm:2, /* current rounding mode */
f1f3b7eb	154	;))))))))))
1da177e4	155	};
eae89076	156	#define ieee754_csr ((struct _ieee754_csr )(&current->thread.fpu.fcr31))
1da177e4	157
cd21dfcf	158	static inline unsigned ieee754_getrm(void)
1da177e4 LT	159	{
	160	return (ieee754_csr.rm);
	161	}
cd21dfcf	162	static inline unsigned ieee754_setrm(unsigned rm)
1da177e4 LT	163	{
	164	return (ieee754_csr.rm = rm);
	165	}
	166
	167	/*
	168	* get current exceptions
	169	*/
cd21dfcf	170	static inline unsigned ieee754_getcx(void)
1da177e4 LT	171	{
	172	return (ieee754_csr.cx);
	173	}
	174
	175	/* test for current exception condition
	176	*/
cd21dfcf	177	static inline int ieee754_cxtest(unsigned n)
1da177e4 LT	178	{
	179	return (ieee754_csr.cx & n);
	180	}
	181
	182	/*
	183	* get sticky exceptions
	184	*/
cd21dfcf	185	static inline unsigned ieee754_getsx(void)
1da177e4 LT	186	{
	187	return (ieee754_csr.sx);
	188	}
	189
	190	/* clear sticky conditions
	191	*/
cd21dfcf	192	static inline unsigned ieee754_clrsx(void)
1da177e4 LT	193	{
	194	return (ieee754_csr.sx = 0);
	195	}
	196
	197	/* test for sticky exception condition
	198	*/
cd21dfcf	199	static inline int ieee754_sxtest(unsigned n)
1da177e4 LT	200	{
	201	return (ieee754_csr.sx & n);
	202	}
	203
	204	/* debugging */
2209bcb1 RB	205	union ieee754sp ieee754sp_dump(char *s, union ieee754sp x);
2209bcb1 RB	206	union ieee754dp ieee754dp_dump(char *s, union ieee754dp x);
1da177e4	207
1796ec77 MR	208	#define IEEE754_SPCVAL_PZERO 0 /* +0.0 */
	209	#define IEEE754_SPCVAL_NZERO 1 /* -0.0 */
	210	#define IEEE754_SPCVAL_PONE 2 /* +1.0 */
	211	#define IEEE754_SPCVAL_NONE 3 /* -1.0 */
	212	#define IEEE754_SPCVAL_PTEN 4 /* +10.0 */
	213	#define IEEE754_SPCVAL_NTEN 5 /* -10.0 */
	214	#define IEEE754_SPCVAL_PINFINITY 6 /* +inf */
	215	#define IEEE754_SPCVAL_NINFINITY 7 /* -inf */
	216	#define IEEE754_SPCVAL_INDEF 8 /* quiet NaN */
	217	#define IEEE754_SPCVAL_PMAX 9 /* +max norm */
	218	#define IEEE754_SPCVAL_NMAX 10 /* -max norm */
	219	#define IEEE754_SPCVAL_PMIN 11 /* +min norm */
	220	#define IEEE754_SPCVAL_NMIN 12 /* -min norm */
	221	#define IEEE754_SPCVAL_PMIND 13 /* +min denorm */
	222	#define IEEE754_SPCVAL_NMIND 14 /* -min denorm */
	223	#define IEEE754_SPCVAL_P1E31 15 /* + 1.0e31 */
	224	#define IEEE754_SPCVAL_P1E63 16 /* + 1.0e63 */
1da177e4	225
49548b09 RB	226	extern const union ieee754dp __ieee754dp_spcvals[];
49548b09 RB	227	extern const union ieee754sp __ieee754sp_spcvals[];
2209bcb1 RB	228	#define ieee754dp_spcvals ((const union ieee754dp *)__ieee754dp_spcvals)
2209bcb1 RB	229	#define ieee754sp_spcvals ((const union ieee754sp *)__ieee754sp_spcvals)
1da177e4	230
cd21dfcf RB	231	/*
	232	* Return infinity with given sign
	233	*/
	234	#define ieee754dp_inf(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
	235	#define ieee754dp_zero(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
	236	#define ieee754dp_one(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
	237	#define ieee754dp_ten(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
	238	#define ieee754dp_indef() (ieee754dp_spcvals[IEEE754_SPCVAL_INDEF])
	239	#define ieee754dp_max(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
	240	#define ieee754dp_min(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
	241	#define ieee754dp_mind(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
	242	#define ieee754dp_1e31() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E31])
	243	#define ieee754dp_1e63() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E63])
	244
	245	#define ieee754sp_inf(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
	246	#define ieee754sp_zero(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
	247	#define ieee754sp_one(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
	248	#define ieee754sp_ten(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
	249	#define ieee754sp_indef() (ieee754sp_spcvals[IEEE754_SPCVAL_INDEF])
	250	#define ieee754sp_max(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
	251	#define ieee754sp_min(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
	252	#define ieee754sp_mind(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
	253	#define ieee754sp_1e31() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E31])
	254	#define ieee754sp_1e63() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E63])
	255
	256	/*
	257	* Indefinite integer value
	258	*/
e812a739 RB	259	static inline int ieee754si_indef(void)
	260	{
	261	return INT_MAX;
	262	}
	263
	264	static inline s64 ieee754di_indef(void)
	265	{
	266	return S64_MAX;
	267	}
1da177e4	268
1da177e4 LT	269	/* result types for xctx.rt */
	270	#define IEEE754_RT_SP 0
	271	#define IEEE754_RT_DP 1
	272	#define IEEE754_RT_XP 2
	273	#define IEEE754_RT_SI 3
	274	#define IEEE754_RT_DI 4
	275
1da177e4 LT	276	/* compat */
	277	#define ieee754dp_fix(x) ieee754dp_tint(x)
	278	#define ieee754sp_fix(x) ieee754sp_tint(x)
a663bf90 RB	279
a663bf90 RB	280	#endif /* __ARCH_MIPS_MATH_EMU_IEEE754_H */