19d5a6349SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * MIPS floating point support
41da177e4SLinus Torvalds * Copyright (C) 1994-2000 Algorithmics Ltd.
51da177e4SLinus Torvalds *
61da177e4SLinus Torvalds * Nov 7, 2000
71da177e4SLinus Torvalds * Modification to allow integration with Linux kernel
81da177e4SLinus Torvalds *
91da177e4SLinus Torvalds * Kevin D. Kissell, kevink@mips.com and Carsten Langgard, carstenl@mips.com
101da177e4SLinus Torvalds * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
11cd21dfcfSRalf Baechle */
12a663bf90SRalf Baechle #ifndef __ARCH_MIPS_MATH_EMU_IEEE754_H
13a663bf90SRalf Baechle #define __ARCH_MIPS_MATH_EMU_IEEE754_H
141da177e4SLinus Torvalds
15cae55066SRalf Baechle #include <linux/compiler.h>
16cd21dfcfSRalf Baechle #include <asm/byteorder.h>
17e812a739SRalf Baechle #include <linux/kernel.h>
181da177e4SLinus Torvalds #include <linux/types.h>
19cd21dfcfSRalf Baechle #include <linux/sched.h>
20f80cc08dSRalf Baechle #include <asm/bitfield.h>
211da177e4SLinus Torvalds
222209bcb1SRalf Baechle union ieee754dp {
231da177e4SLinus Torvalds struct {
24f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned int sign:1,
25f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned int bexp:11,
26f80cc08dSRalf Baechle __BITFIELD_FIELD(u64 mant:52,
27f80cc08dSRalf Baechle ;)))
2849548b09SRalf Baechle };
291da177e4SLinus Torvalds u64 bits;
302209bcb1SRalf Baechle };
311da177e4SLinus Torvalds
3249548b09SRalf Baechle union ieee754sp {
3349548b09SRalf Baechle struct {
34f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned sign:1,
35f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned bexp:8,
36f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned mant:23,
37f80cc08dSRalf Baechle ;)))
381da177e4SLinus Torvalds };
391da177e4SLinus Torvalds u32 bits;
402209bcb1SRalf Baechle };
411da177e4SLinus Torvalds
421da177e4SLinus Torvalds /*
431da177e4SLinus Torvalds * single precision (often aka float)
441da177e4SLinus Torvalds */
452209bcb1SRalf Baechle int ieee754sp_class(union ieee754sp x);
461da177e4SLinus Torvalds
472209bcb1SRalf Baechle union ieee754sp ieee754sp_abs(union ieee754sp x);
482209bcb1SRalf Baechle union ieee754sp ieee754sp_neg(union ieee754sp x);
491da177e4SLinus Torvalds
502209bcb1SRalf Baechle union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y);
512209bcb1SRalf Baechle union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y);
522209bcb1SRalf Baechle union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y);
532209bcb1SRalf Baechle union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);
541da177e4SLinus Torvalds
552209bcb1SRalf Baechle union ieee754sp ieee754sp_fint(int x);
562209bcb1SRalf Baechle union ieee754sp ieee754sp_flong(s64 x);
572209bcb1SRalf Baechle union ieee754sp ieee754sp_fdp(union ieee754dp x);
583ec404d8SAleksandar Markovic union ieee754sp ieee754sp_rint(union ieee754sp x);
591da177e4SLinus Torvalds
602209bcb1SRalf Baechle int ieee754sp_tint(union ieee754sp x);
612209bcb1SRalf Baechle s64 ieee754sp_tlong(union ieee754sp x);
621da177e4SLinus Torvalds
632209bcb1SRalf Baechle int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig);
641da177e4SLinus Torvalds
652209bcb1SRalf Baechle union ieee754sp ieee754sp_sqrt(union ieee754sp x);
661da177e4SLinus Torvalds
67e24c3becSMarkos Chandras union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
68e24c3becSMarkos Chandras union ieee754sp y);
6983d43305SMarkos Chandras union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
7083d43305SMarkos Chandras union ieee754sp y);
71ece276deSJiaxun Yang union ieee754sp ieee754sp_madd(union ieee754sp z, union ieee754sp x,
72ece276deSJiaxun Yang union ieee754sp y);
73ece276deSJiaxun Yang union ieee754sp ieee754sp_msub(union ieee754sp z, union ieee754sp x,
74ece276deSJiaxun Yang union ieee754sp y);
75ece276deSJiaxun Yang union ieee754sp ieee754sp_nmadd(union ieee754sp z, union ieee754sp x,
76ece276deSJiaxun Yang union ieee754sp y);
77ece276deSJiaxun Yang union ieee754sp ieee754sp_nmsub(union ieee754sp z, union ieee754sp x,
78ece276deSJiaxun Yang union ieee754sp y);
7938db37baSMarkos Chandras int ieee754sp_2008class(union ieee754sp x);
804e9561b2SMarkos Chandras union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y);
814e9561b2SMarkos Chandras union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y);
82a79f5f9bSMarkos Chandras union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y);
83a79f5f9bSMarkos Chandras union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y);
84e24c3becSMarkos Chandras
851da177e4SLinus Torvalds /*
861da177e4SLinus Torvalds * double precision (often aka double)
871da177e4SLinus Torvalds */
882209bcb1SRalf Baechle int ieee754dp_class(union ieee754dp x);
891da177e4SLinus Torvalds
902209bcb1SRalf Baechle union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y);
912209bcb1SRalf Baechle union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y);
922209bcb1SRalf Baechle union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y);
932209bcb1SRalf Baechle union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y);
941da177e4SLinus Torvalds
952209bcb1SRalf Baechle union ieee754dp ieee754dp_abs(union ieee754dp x);
962209bcb1SRalf Baechle union ieee754dp ieee754dp_neg(union ieee754dp x);
971da177e4SLinus Torvalds
982209bcb1SRalf Baechle union ieee754dp ieee754dp_fint(int x);
992209bcb1SRalf Baechle union ieee754dp ieee754dp_flong(s64 x);
1002209bcb1SRalf Baechle union ieee754dp ieee754dp_fsp(union ieee754sp x);
1013ec404d8SAleksandar Markovic union ieee754dp ieee754dp_rint(union ieee754dp x);
1021da177e4SLinus Torvalds
1032209bcb1SRalf Baechle int ieee754dp_tint(union ieee754dp x);
1042209bcb1SRalf Baechle s64 ieee754dp_tlong(union ieee754dp x);
1051da177e4SLinus Torvalds
1062209bcb1SRalf Baechle int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig);
1071da177e4SLinus Torvalds
1082209bcb1SRalf Baechle union ieee754dp ieee754dp_sqrt(union ieee754dp x);
1091da177e4SLinus Torvalds
110e24c3becSMarkos Chandras union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
111e24c3becSMarkos Chandras union ieee754dp y);
11283d43305SMarkos Chandras union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
11383d43305SMarkos Chandras union ieee754dp y);
114ece276deSJiaxun Yang union ieee754dp ieee754dp_madd(union ieee754dp z, union ieee754dp x,
115ece276deSJiaxun Yang union ieee754dp y);
116ece276deSJiaxun Yang union ieee754dp ieee754dp_msub(union ieee754dp z, union ieee754dp x,
117ece276deSJiaxun Yang union ieee754dp y);
118ece276deSJiaxun Yang union ieee754dp ieee754dp_nmadd(union ieee754dp z, union ieee754dp x,
119ece276deSJiaxun Yang union ieee754dp y);
120ece276deSJiaxun Yang union ieee754dp ieee754dp_nmsub(union ieee754dp z, union ieee754dp x,
121ece276deSJiaxun Yang union ieee754dp y);
12238db37baSMarkos Chandras int ieee754dp_2008class(union ieee754dp x);
1234e9561b2SMarkos Chandras union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y);
1244e9561b2SMarkos Chandras union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y);
125a79f5f9bSMarkos Chandras union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y);
126a79f5f9bSMarkos Chandras union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y);
1271da177e4SLinus Torvalds
1281da177e4SLinus Torvalds
1291da177e4SLinus Torvalds /* 5 types of floating point number
1301da177e4SLinus Torvalds */
1319e8bad1fSRalf Baechle enum {
1329e8bad1fSRalf Baechle IEEE754_CLASS_NORM = 0x00,
1339e8bad1fSRalf Baechle IEEE754_CLASS_ZERO = 0x01,
1349e8bad1fSRalf Baechle IEEE754_CLASS_DNORM = 0x02,
1359e8bad1fSRalf Baechle IEEE754_CLASS_INF = 0x03,
1369e8bad1fSRalf Baechle IEEE754_CLASS_SNAN = 0x04,
1379e8bad1fSRalf Baechle IEEE754_CLASS_QNAN = 0x05,
1389e8bad1fSRalf Baechle };
1391da177e4SLinus Torvalds
1401da177e4SLinus Torvalds /* exception numbers */
1411da177e4SLinus Torvalds #define IEEE754_INEXACT 0x01
1421da177e4SLinus Torvalds #define IEEE754_UNDERFLOW 0x02
1431da177e4SLinus Torvalds #define IEEE754_OVERFLOW 0x04
1441da177e4SLinus Torvalds #define IEEE754_ZERO_DIVIDE 0x08
1451da177e4SLinus Torvalds #define IEEE754_INVALID_OPERATION 0x10
1461da177e4SLinus Torvalds
1471da177e4SLinus Torvalds /* cmp operators
1481da177e4SLinus Torvalds */
1491da177e4SLinus Torvalds #define IEEE754_CLT 0x01
1501da177e4SLinus Torvalds #define IEEE754_CEQ 0x02
1511da177e4SLinus Torvalds #define IEEE754_CGT 0x04
1521da177e4SLinus Torvalds #define IEEE754_CUN 0x08
1531da177e4SLinus Torvalds
154cd21dfcfSRalf Baechle /*
155cd21dfcfSRalf Baechle * The control status register
1561da177e4SLinus Torvalds */
157cd21dfcfSRalf Baechle struct _ieee754_csr {
158f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned fcc:7, /* condition[7:1] */
159f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned nod:1, /* set 1 for no denormals */
160f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned c:1, /* condition[0] */
161f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned pad0:3,
162f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned abs2008:1, /* IEEE 754-2008 ABS/NEG.fmt */
163f1f3b7ebSMaciej W. Rozycki __BITFIELD_FIELD(unsigned nan2008:1, /* IEEE 754-2008 NaN mode */
164f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned cx:6, /* exceptions this operation */
165f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned mx:5, /* exception enable mask */
166f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned sx:5, /* exceptions total */
167f80cc08dSRalf Baechle __BITFIELD_FIELD(unsigned rm:2, /* current rounding mode */
168f1f3b7ebSMaciej W. Rozycki ;))))))))))
1691da177e4SLinus Torvalds };
170eae89076SAtsushi Nemoto #define ieee754_csr (*(struct _ieee754_csr *)(¤t->thread.fpu.fcr31))
1711da177e4SLinus Torvalds
ieee754_getrm(void)172a58f85b5SAleksandar Markovic static inline unsigned int ieee754_getrm(void)
1731da177e4SLinus Torvalds {
1741da177e4SLinus Torvalds return (ieee754_csr.rm);
1751da177e4SLinus Torvalds }
176a58f85b5SAleksandar Markovic
ieee754_setrm(unsigned int rm)177a58f85b5SAleksandar Markovic static inline unsigned int ieee754_setrm(unsigned int rm)
1781da177e4SLinus Torvalds {
1791da177e4SLinus Torvalds return (ieee754_csr.rm = rm);
1801da177e4SLinus Torvalds }
1811da177e4SLinus Torvalds
1821da177e4SLinus Torvalds /*
1831da177e4SLinus Torvalds * get current exceptions
1841da177e4SLinus Torvalds */
ieee754_getcx(void)185a58f85b5SAleksandar Markovic static inline unsigned int ieee754_getcx(void)
1861da177e4SLinus Torvalds {
1871da177e4SLinus Torvalds return (ieee754_csr.cx);
1881da177e4SLinus Torvalds }
1891da177e4SLinus Torvalds
1901da177e4SLinus Torvalds /* test for current exception condition
1911da177e4SLinus Torvalds */
ieee754_cxtest(unsigned int n)192a58f85b5SAleksandar Markovic static inline int ieee754_cxtest(unsigned int n)
1931da177e4SLinus Torvalds {
1941da177e4SLinus Torvalds return (ieee754_csr.cx & n);
1951da177e4SLinus Torvalds }
1961da177e4SLinus Torvalds
1971da177e4SLinus Torvalds /*
1981da177e4SLinus Torvalds * get sticky exceptions
1991da177e4SLinus Torvalds */
ieee754_getsx(void)200a58f85b5SAleksandar Markovic static inline unsigned int ieee754_getsx(void)
2011da177e4SLinus Torvalds {
2021da177e4SLinus Torvalds return (ieee754_csr.sx);
2031da177e4SLinus Torvalds }
2041da177e4SLinus Torvalds
2051da177e4SLinus Torvalds /* clear sticky conditions
2061da177e4SLinus Torvalds */
ieee754_clrsx(void)207a58f85b5SAleksandar Markovic static inline unsigned int ieee754_clrsx(void)
2081da177e4SLinus Torvalds {
2091da177e4SLinus Torvalds return (ieee754_csr.sx = 0);
2101da177e4SLinus Torvalds }
2111da177e4SLinus Torvalds
2121da177e4SLinus Torvalds /* test for sticky exception condition
2131da177e4SLinus Torvalds */
ieee754_sxtest(unsigned int n)214a58f85b5SAleksandar Markovic static inline int ieee754_sxtest(unsigned int n)
2151da177e4SLinus Torvalds {
2161da177e4SLinus Torvalds return (ieee754_csr.sx & n);
2171da177e4SLinus Torvalds }
2181da177e4SLinus Torvalds
2191da177e4SLinus Torvalds /* debugging */
2202209bcb1SRalf Baechle union ieee754sp ieee754sp_dump(char *s, union ieee754sp x);
2212209bcb1SRalf Baechle union ieee754dp ieee754dp_dump(char *s, union ieee754dp x);
2221da177e4SLinus Torvalds
2231796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_PZERO 0 /* +0.0 */
2241796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_NZERO 1 /* -0.0 */
2251796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_PONE 2 /* +1.0 */
2261796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_NONE 3 /* -1.0 */
2271796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_PTEN 4 /* +10.0 */
2281796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_NTEN 5 /* -10.0 */
2291796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_PINFINITY 6 /* +inf */
2301796ec77SMaciej W. Rozycki #define IEEE754_SPCVAL_NINFINITY 7 /* -inf */
23190d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_INDEF_LEG 8 /* legacy quiet NaN */
23290d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_INDEF_2008 9 /* IEEE 754-2008 quiet NaN */
23390d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_PMAX 10 /* +max norm */
23490d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_NMAX 11 /* -max norm */
23590d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_PMIN 12 /* +min norm */
23690d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_NMIN 13 /* -min norm */
23790d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_PMIND 14 /* +min denorm */
23890d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_NMIND 15 /* -min denorm */
23990d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_P1E31 16 /* + 1.0e31 */
24090d53a91SMaciej W. Rozycki #define IEEE754_SPCVAL_P1E63 17 /* + 1.0e63 */
2411da177e4SLinus Torvalds
24249548b09SRalf Baechle extern const union ieee754dp __ieee754dp_spcvals[];
24349548b09SRalf Baechle extern const union ieee754sp __ieee754sp_spcvals[];
2442209bcb1SRalf Baechle #define ieee754dp_spcvals ((const union ieee754dp *)__ieee754dp_spcvals)
2452209bcb1SRalf Baechle #define ieee754sp_spcvals ((const union ieee754sp *)__ieee754sp_spcvals)
2461da177e4SLinus Torvalds
247cd21dfcfSRalf Baechle /*
248cd21dfcfSRalf Baechle * Return infinity with given sign
2491da177e4SLinus Torvalds */
250cd21dfcfSRalf Baechle #define ieee754dp_inf(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
251cd21dfcfSRalf Baechle #define ieee754dp_zero(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
252cd21dfcfSRalf Baechle #define ieee754dp_one(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
253cd21dfcfSRalf Baechle #define ieee754dp_ten(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
25490d53a91SMaciej W. Rozycki #define ieee754dp_indef() (ieee754dp_spcvals[IEEE754_SPCVAL_INDEF_LEG + \
25590d53a91SMaciej W. Rozycki ieee754_csr.nan2008])
256cd21dfcfSRalf Baechle #define ieee754dp_max(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
257cd21dfcfSRalf Baechle #define ieee754dp_min(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
258cd21dfcfSRalf Baechle #define ieee754dp_mind(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
259cd21dfcfSRalf Baechle #define ieee754dp_1e31() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E31])
260cd21dfcfSRalf Baechle #define ieee754dp_1e63() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E63])
2611da177e4SLinus Torvalds
262cd21dfcfSRalf Baechle #define ieee754sp_inf(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)])
263cd21dfcfSRalf Baechle #define ieee754sp_zero(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PZERO+(sn)])
264cd21dfcfSRalf Baechle #define ieee754sp_one(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PONE+(sn)])
265cd21dfcfSRalf Baechle #define ieee754sp_ten(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PTEN+(sn)])
26690d53a91SMaciej W. Rozycki #define ieee754sp_indef() (ieee754sp_spcvals[IEEE754_SPCVAL_INDEF_LEG + \
26790d53a91SMaciej W. Rozycki ieee754_csr.nan2008])
268cd21dfcfSRalf Baechle #define ieee754sp_max(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMAX+(sn)])
269cd21dfcfSRalf Baechle #define ieee754sp_min(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIN+(sn)])
270cd21dfcfSRalf Baechle #define ieee754sp_mind(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIND+(sn)])
271cd21dfcfSRalf Baechle #define ieee754sp_1e31() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E31])
272cd21dfcfSRalf Baechle #define ieee754sp_1e63() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E63])
2731da177e4SLinus Torvalds
274cd21dfcfSRalf Baechle /*
275cd21dfcfSRalf Baechle * Indefinite integer value
2761da177e4SLinus Torvalds */
ieee754si_indef(void)277e812a739SRalf Baechle static inline int ieee754si_indef(void)
278e812a739SRalf Baechle {
27990d53a91SMaciej W. Rozycki return ieee754_csr.nan2008 ? 0 : INT_MAX;
280e812a739SRalf Baechle }
281e812a739SRalf Baechle
ieee754di_indef(void)282e812a739SRalf Baechle static inline s64 ieee754di_indef(void)
283e812a739SRalf Baechle {
28490d53a91SMaciej W. Rozycki return ieee754_csr.nan2008 ? 0 : S64_MAX;
28590d53a91SMaciej W. Rozycki }
28690d53a91SMaciej W. Rozycki
28790d53a91SMaciej W. Rozycki /*
28890d53a91SMaciej W. Rozycki * Overflow integer value
28990d53a91SMaciej W. Rozycki */
ieee754si_overflow(int xs)29090d53a91SMaciej W. Rozycki static inline int ieee754si_overflow(int xs)
29190d53a91SMaciej W. Rozycki {
29290d53a91SMaciej W. Rozycki return ieee754_csr.nan2008 && xs ? INT_MIN : INT_MAX;
29390d53a91SMaciej W. Rozycki }
29490d53a91SMaciej W. Rozycki
ieee754di_overflow(int xs)29590d53a91SMaciej W. Rozycki static inline s64 ieee754di_overflow(int xs)
29690d53a91SMaciej W. Rozycki {
29790d53a91SMaciej W. Rozycki return ieee754_csr.nan2008 && xs ? S64_MIN : S64_MAX;
298e812a739SRalf Baechle }
2991da177e4SLinus Torvalds
3001da177e4SLinus Torvalds /* result types for xctx.rt */
3011da177e4SLinus Torvalds #define IEEE754_RT_SP 0
3021da177e4SLinus Torvalds #define IEEE754_RT_DP 1
3031da177e4SLinus Torvalds #define IEEE754_RT_XP 2
3041da177e4SLinus Torvalds #define IEEE754_RT_SI 3
3051da177e4SLinus Torvalds #define IEEE754_RT_DI 4
3061da177e4SLinus Torvalds
3071da177e4SLinus Torvalds /* compat */
3081da177e4SLinus Torvalds #define ieee754dp_fix(x) ieee754dp_tint(x)
3091da177e4SLinus Torvalds #define ieee754sp_fix(x) ieee754sp_tint(x)
310a663bf90SRalf Baechle
311a663bf90SRalf Baechle #endif /* __ARCH_MIPS_MATH_EMU_IEEE754_H */
312