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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., | |
16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
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 |
25 | #define __ARCH_MIPS_MATH_EMU_IEEE754_H | |
1da177e4 | 26 | |
cae55066 | 27 | #include <linux/compiler.h> |
cd21dfcf | 28 | #include <asm/byteorder.h> |
1da177e4 | 29 | #include <linux/types.h> |
cd21dfcf | 30 | #include <linux/sched.h> |
f80cc08d | 31 | #include <asm/bitfield.h> |
1da177e4 LT |
32 | |
33 | /* | |
34 | * Not very pretty, but the Linux kernel's normal va_list definition | |
35 | * does not allow it to be used as a structure element, as it is here. | |
36 | */ | |
37 | #ifndef _STDARG_H | |
38 | #include <stdarg.h> | |
39 | #endif | |
40 | ||
23708818 | 41 | struct ieee754dp_const { |
f80cc08d RB |
42 | __BITFIELD_FIELD(unsigned sign:1, |
43 | __BITFIELD_FIELD(unsigned bexp:11, | |
44 | __BITFIELD_FIELD(unsigned manthi:20, | |
45 | __BITFIELD_FIELD(unsigned mantlo:32, | |
46 | ;)))) | |
1da177e4 LT |
47 | }; |
48 | ||
2209bcb1 | 49 | union ieee754dp { |
23708818 | 50 | struct ieee754dp_const oparts; |
1da177e4 | 51 | struct { |
f80cc08d RB |
52 | __BITFIELD_FIELD(unsigned int sign:1, |
53 | __BITFIELD_FIELD(unsigned int bexp:11, | |
54 | __BITFIELD_FIELD(u64 mant:52, | |
55 | ;))) | |
1da177e4 LT |
56 | } parts; |
57 | double d; | |
58 | u64 bits; | |
2209bcb1 | 59 | }; |
1da177e4 | 60 | |
23708818 | 61 | struct ieee754sp_const { |
f80cc08d RB |
62 | __BITFIELD_FIELD(unsigned sign:1, |
63 | __BITFIELD_FIELD(unsigned bexp:8, | |
64 | __BITFIELD_FIELD(unsigned mant:23, | |
65 | ;))) | |
1da177e4 LT |
66 | }; |
67 | ||
2209bcb1 | 68 | union ieee754sp { |
23708818 | 69 | struct ieee754sp_const parts; |
1da177e4 LT |
70 | float f; |
71 | u32 bits; | |
2209bcb1 | 72 | }; |
1da177e4 LT |
73 | |
74 | /* | |
75 | * single precision (often aka float) | |
76 | */ | |
2209bcb1 RB |
77 | int ieee754sp_finite(union ieee754sp x); |
78 | int ieee754sp_class(union ieee754sp x); | |
1da177e4 | 79 | |
2209bcb1 RB |
80 | union ieee754sp ieee754sp_abs(union ieee754sp x); |
81 | union ieee754sp ieee754sp_neg(union ieee754sp x); | |
82 | union ieee754sp ieee754sp_scalb(union ieee754sp x, int); | |
83 | union ieee754sp ieee754sp_logb(union ieee754sp x); | |
1da177e4 LT |
84 | |
85 | /* x with sign of y */ | |
2209bcb1 | 86 | union ieee754sp ieee754sp_copysign(union ieee754sp x, union ieee754sp y); |
1da177e4 | 87 | |
2209bcb1 RB |
88 | union ieee754sp ieee754sp_add(union ieee754sp x, union ieee754sp y); |
89 | union ieee754sp ieee754sp_sub(union ieee754sp x, union ieee754sp y); | |
90 | union ieee754sp ieee754sp_mul(union ieee754sp x, union ieee754sp y); | |
91 | union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y); | |
1da177e4 | 92 | |
2209bcb1 RB |
93 | union ieee754sp ieee754sp_fint(int x); |
94 | union ieee754sp ieee754sp_funs(unsigned x); | |
95 | union ieee754sp ieee754sp_flong(s64 x); | |
96 | union ieee754sp ieee754sp_fulong(u64 x); | |
97 | union ieee754sp ieee754sp_fdp(union ieee754dp x); | |
1da177e4 | 98 | |
2209bcb1 RB |
99 | int ieee754sp_tint(union ieee754sp x); |
100 | unsigned int ieee754sp_tuns(union ieee754sp x); | |
101 | s64 ieee754sp_tlong(union ieee754sp x); | |
102 | u64 ieee754sp_tulong(union ieee754sp x); | |
1da177e4 | 103 | |
2209bcb1 | 104 | int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cop, int sig); |
1da177e4 LT |
105 | /* |
106 | * basic sp math | |
107 | */ | |
2209bcb1 RB |
108 | union ieee754sp ieee754sp_modf(union ieee754sp x, union ieee754sp * ip); |
109 | union ieee754sp ieee754sp_frexp(union ieee754sp x, int *exp); | |
110 | union ieee754sp ieee754sp_ldexp(union ieee754sp x, int exp); | |
1da177e4 | 111 | |
2209bcb1 RB |
112 | union ieee754sp ieee754sp_ceil(union ieee754sp x); |
113 | union ieee754sp ieee754sp_floor(union ieee754sp x); | |
114 | union ieee754sp ieee754sp_trunc(union ieee754sp x); | |
1da177e4 | 115 | |
2209bcb1 | 116 | union ieee754sp ieee754sp_sqrt(union ieee754sp x); |
1da177e4 LT |
117 | |
118 | /* | |
119 | * double precision (often aka double) | |
120 | */ | |
2209bcb1 RB |
121 | int ieee754dp_finite(union ieee754dp x); |
122 | int ieee754dp_class(union ieee754dp x); | |
1da177e4 LT |
123 | |
124 | /* x with sign of y */ | |
2209bcb1 | 125 | union ieee754dp ieee754dp_copysign(union ieee754dp x, union ieee754dp y); |
1da177e4 | 126 | |
2209bcb1 RB |
127 | union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y); |
128 | union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y); | |
129 | union ieee754dp ieee754dp_mul(union ieee754dp x, union ieee754dp y); | |
130 | union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y); | |
1da177e4 | 131 | |
2209bcb1 RB |
132 | union ieee754dp ieee754dp_abs(union ieee754dp x); |
133 | union ieee754dp ieee754dp_neg(union ieee754dp x); | |
134 | union ieee754dp ieee754dp_scalb(union ieee754dp x, int); | |
1da177e4 LT |
135 | |
136 | /* return exponent as integer in floating point format | |
137 | */ | |
2209bcb1 | 138 | union ieee754dp ieee754dp_logb(union ieee754dp x); |
1da177e4 | 139 | |
2209bcb1 RB |
140 | union ieee754dp ieee754dp_fint(int x); |
141 | union ieee754dp ieee754dp_funs(unsigned x); | |
142 | union ieee754dp ieee754dp_flong(s64 x); | |
143 | union ieee754dp ieee754dp_fulong(u64 x); | |
144 | union ieee754dp ieee754dp_fsp(union ieee754sp x); | |
1da177e4 | 145 | |
2209bcb1 RB |
146 | union ieee754dp ieee754dp_ceil(union ieee754dp x); |
147 | union ieee754dp ieee754dp_floor(union ieee754dp x); | |
148 | union ieee754dp ieee754dp_trunc(union ieee754dp x); | |
1da177e4 | 149 | |
2209bcb1 RB |
150 | int ieee754dp_tint(union ieee754dp x); |
151 | unsigned int ieee754dp_tuns(union ieee754dp x); | |
152 | s64 ieee754dp_tlong(union ieee754dp x); | |
153 | u64 ieee754dp_tulong(union ieee754dp x); | |
1da177e4 | 154 | |
2209bcb1 | 155 | int ieee754dp_cmp(union ieee754dp x, union ieee754dp y, int cop, int sig); |
1da177e4 LT |
156 | /* |
157 | * basic sp math | |
158 | */ | |
2209bcb1 RB |
159 | union ieee754dp ieee754dp_modf(union ieee754dp x, union ieee754dp * ip); |
160 | union ieee754dp ieee754dp_frexp(union ieee754dp x, int *exp); | |
161 | union ieee754dp ieee754dp_ldexp(union ieee754dp x, int exp); | |
1da177e4 | 162 | |
2209bcb1 RB |
163 | union ieee754dp ieee754dp_ceil(union ieee754dp x); |
164 | union ieee754dp ieee754dp_floor(union ieee754dp x); | |
165 | union ieee754dp ieee754dp_trunc(union ieee754dp x); | |
1da177e4 | 166 | |
2209bcb1 | 167 | union ieee754dp ieee754dp_sqrt(union ieee754dp x); |
1da177e4 LT |
168 | |
169 | ||
170 | ||
171 | /* 5 types of floating point number | |
172 | */ | |
9e8bad1f RB |
173 | enum { |
174 | IEEE754_CLASS_NORM = 0x00, | |
175 | IEEE754_CLASS_ZERO = 0x01, | |
176 | IEEE754_CLASS_DNORM = 0x02, | |
177 | IEEE754_CLASS_INF = 0x03, | |
178 | IEEE754_CLASS_SNAN = 0x04, | |
179 | IEEE754_CLASS_QNAN = 0x05, | |
180 | }; | |
1da177e4 LT |
181 | |
182 | /* exception numbers */ | |
183 | #define IEEE754_INEXACT 0x01 | |
184 | #define IEEE754_UNDERFLOW 0x02 | |
185 | #define IEEE754_OVERFLOW 0x04 | |
186 | #define IEEE754_ZERO_DIVIDE 0x08 | |
187 | #define IEEE754_INVALID_OPERATION 0x10 | |
188 | ||
189 | /* cmp operators | |
190 | */ | |
191 | #define IEEE754_CLT 0x01 | |
192 | #define IEEE754_CEQ 0x02 | |
193 | #define IEEE754_CGT 0x04 | |
194 | #define IEEE754_CUN 0x08 | |
195 | ||
196 | /* rounding mode | |
197 | */ | |
198 | #define IEEE754_RN 0 /* round to nearest */ | |
199 | #define IEEE754_RZ 1 /* round toward zero */ | |
200 | #define IEEE754_RD 2 /* round toward -Infinity */ | |
201 | #define IEEE754_RU 3 /* round toward +Infinity */ | |
202 | ||
203 | /* other naming */ | |
204 | #define IEEE754_RM IEEE754_RD | |
205 | #define IEEE754_RP IEEE754_RU | |
206 | ||
207 | /* "normal" comparisons | |
208 | */ | |
2209bcb1 | 209 | static inline int ieee754sp_eq(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
210 | { |
211 | return ieee754sp_cmp(x, y, IEEE754_CEQ, 0); | |
212 | } | |
213 | ||
2209bcb1 | 214 | static inline int ieee754sp_ne(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
215 | { |
216 | return ieee754sp_cmp(x, y, | |
217 | IEEE754_CLT | IEEE754_CGT | IEEE754_CUN, 0); | |
218 | } | |
219 | ||
2209bcb1 | 220 | static inline int ieee754sp_lt(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
221 | { |
222 | return ieee754sp_cmp(x, y, IEEE754_CLT, 0); | |
223 | } | |
224 | ||
2209bcb1 | 225 | static inline int ieee754sp_le(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
226 | { |
227 | return ieee754sp_cmp(x, y, IEEE754_CLT | IEEE754_CEQ, 0); | |
228 | } | |
229 | ||
2209bcb1 | 230 | static inline int ieee754sp_gt(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
231 | { |
232 | return ieee754sp_cmp(x, y, IEEE754_CGT, 0); | |
233 | } | |
234 | ||
235 | ||
2209bcb1 | 236 | static inline int ieee754sp_ge(union ieee754sp x, union ieee754sp y) |
1da177e4 LT |
237 | { |
238 | return ieee754sp_cmp(x, y, IEEE754_CGT | IEEE754_CEQ, 0); | |
239 | } | |
240 | ||
2209bcb1 | 241 | static inline int ieee754dp_eq(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
242 | { |
243 | return ieee754dp_cmp(x, y, IEEE754_CEQ, 0); | |
244 | } | |
245 | ||
2209bcb1 | 246 | static inline int ieee754dp_ne(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
247 | { |
248 | return ieee754dp_cmp(x, y, | |
249 | IEEE754_CLT | IEEE754_CGT | IEEE754_CUN, 0); | |
250 | } | |
251 | ||
2209bcb1 | 252 | static inline int ieee754dp_lt(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
253 | { |
254 | return ieee754dp_cmp(x, y, IEEE754_CLT, 0); | |
255 | } | |
256 | ||
2209bcb1 | 257 | static inline int ieee754dp_le(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
258 | { |
259 | return ieee754dp_cmp(x, y, IEEE754_CLT | IEEE754_CEQ, 0); | |
260 | } | |
261 | ||
2209bcb1 | 262 | static inline int ieee754dp_gt(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
263 | { |
264 | return ieee754dp_cmp(x, y, IEEE754_CGT, 0); | |
265 | } | |
266 | ||
2209bcb1 | 267 | static inline int ieee754dp_ge(union ieee754dp x, union ieee754dp y) |
1da177e4 LT |
268 | { |
269 | return ieee754dp_cmp(x, y, IEEE754_CGT | IEEE754_CEQ, 0); | |
270 | } | |
271 | ||
272 | ||
cd21dfcf RB |
273 | /* |
274 | * Like strtod | |
275 | */ | |
2209bcb1 RB |
276 | union ieee754dp ieee754dp_fstr(const char *s, char **endp); |
277 | char *ieee754dp_tstr(union ieee754dp x, int prec, int fmt, int af); | |
1da177e4 LT |
278 | |
279 | ||
cd21dfcf RB |
280 | /* |
281 | * The control status register | |
282 | */ | |
283 | struct _ieee754_csr { | |
f80cc08d RB |
284 | __BITFIELD_FIELD(unsigned pad0:7, |
285 | __BITFIELD_FIELD(unsigned nod:1, /* set 1 for no denormalised numbers */ | |
286 | __BITFIELD_FIELD(unsigned c:1, /* condition */ | |
287 | __BITFIELD_FIELD(unsigned pad1:5, | |
288 | __BITFIELD_FIELD(unsigned cx:6, /* exceptions this operation */ | |
289 | __BITFIELD_FIELD(unsigned mx:5, /* exception enable mask */ | |
290 | __BITFIELD_FIELD(unsigned sx:5, /* exceptions total */ | |
291 | __BITFIELD_FIELD(unsigned rm:2, /* current rounding mode */ | |
292 | ;)))))))) | |
1da177e4 | 293 | }; |
eae89076 | 294 | #define ieee754_csr (*(struct _ieee754_csr *)(¤t->thread.fpu.fcr31)) |
1da177e4 | 295 | |
cd21dfcf | 296 | static inline unsigned ieee754_getrm(void) |
1da177e4 LT |
297 | { |
298 | return (ieee754_csr.rm); | |
299 | } | |
cd21dfcf | 300 | static inline unsigned ieee754_setrm(unsigned rm) |
1da177e4 LT |
301 | { |
302 | return (ieee754_csr.rm = rm); | |
303 | } | |
304 | ||
305 | /* | |
306 | * get current exceptions | |
307 | */ | |
cd21dfcf | 308 | static inline unsigned ieee754_getcx(void) |
1da177e4 LT |
309 | { |
310 | return (ieee754_csr.cx); | |
311 | } | |
312 | ||
313 | /* test for current exception condition | |
314 | */ | |
cd21dfcf | 315 | static inline int ieee754_cxtest(unsigned n) |
1da177e4 LT |
316 | { |
317 | return (ieee754_csr.cx & n); | |
318 | } | |
319 | ||
320 | /* | |
321 | * get sticky exceptions | |
322 | */ | |
cd21dfcf | 323 | static inline unsigned ieee754_getsx(void) |
1da177e4 LT |
324 | { |
325 | return (ieee754_csr.sx); | |
326 | } | |
327 | ||
328 | /* clear sticky conditions | |
329 | */ | |
cd21dfcf | 330 | static inline unsigned ieee754_clrsx(void) |
1da177e4 LT |
331 | { |
332 | return (ieee754_csr.sx = 0); | |
333 | } | |
334 | ||
335 | /* test for sticky exception condition | |
336 | */ | |
cd21dfcf | 337 | static inline int ieee754_sxtest(unsigned n) |
1da177e4 LT |
338 | { |
339 | return (ieee754_csr.sx & n); | |
340 | } | |
341 | ||
342 | /* debugging */ | |
2209bcb1 RB |
343 | union ieee754sp ieee754sp_dump(char *s, union ieee754sp x); |
344 | union ieee754dp ieee754dp_dump(char *s, union ieee754dp x); | |
1da177e4 LT |
345 | |
346 | #define IEEE754_SPCVAL_PZERO 0 | |
347 | #define IEEE754_SPCVAL_NZERO 1 | |
348 | #define IEEE754_SPCVAL_PONE 2 | |
349 | #define IEEE754_SPCVAL_NONE 3 | |
350 | #define IEEE754_SPCVAL_PTEN 4 | |
351 | #define IEEE754_SPCVAL_NTEN 5 | |
352 | #define IEEE754_SPCVAL_PINFINITY 6 | |
353 | #define IEEE754_SPCVAL_NINFINITY 7 | |
354 | #define IEEE754_SPCVAL_INDEF 8 | |
355 | #define IEEE754_SPCVAL_PMAX 9 /* +max norm */ | |
356 | #define IEEE754_SPCVAL_NMAX 10 /* -max norm */ | |
357 | #define IEEE754_SPCVAL_PMIN 11 /* +min norm */ | |
358 | #define IEEE754_SPCVAL_NMIN 12 /* +min norm */ | |
359 | #define IEEE754_SPCVAL_PMIND 13 /* +min denorm */ | |
360 | #define IEEE754_SPCVAL_NMIND 14 /* +min denorm */ | |
361 | #define IEEE754_SPCVAL_P1E31 15 /* + 1.0e31 */ | |
362 | #define IEEE754_SPCVAL_P1E63 16 /* + 1.0e63 */ | |
363 | ||
23708818 RB |
364 | extern const struct ieee754dp_const __ieee754dp_spcvals[]; |
365 | extern const struct ieee754sp_const __ieee754sp_spcvals[]; | |
2209bcb1 RB |
366 | #define ieee754dp_spcvals ((const union ieee754dp *)__ieee754dp_spcvals) |
367 | #define ieee754sp_spcvals ((const union ieee754sp *)__ieee754sp_spcvals) | |
1da177e4 | 368 | |
cd21dfcf RB |
369 | /* |
370 | * Return infinity with given sign | |
371 | */ | |
372 | #define ieee754dp_inf(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)]) | |
373 | #define ieee754dp_zero(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PZERO+(sn)]) | |
374 | #define ieee754dp_one(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PONE+(sn)]) | |
375 | #define ieee754dp_ten(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PTEN+(sn)]) | |
376 | #define ieee754dp_indef() (ieee754dp_spcvals[IEEE754_SPCVAL_INDEF]) | |
377 | #define ieee754dp_max(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMAX+(sn)]) | |
378 | #define ieee754dp_min(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIN+(sn)]) | |
379 | #define ieee754dp_mind(sn) (ieee754dp_spcvals[IEEE754_SPCVAL_PMIND+(sn)]) | |
380 | #define ieee754dp_1e31() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E31]) | |
381 | #define ieee754dp_1e63() (ieee754dp_spcvals[IEEE754_SPCVAL_P1E63]) | |
382 | ||
383 | #define ieee754sp_inf(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PINFINITY+(sn)]) | |
384 | #define ieee754sp_zero(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PZERO+(sn)]) | |
385 | #define ieee754sp_one(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PONE+(sn)]) | |
386 | #define ieee754sp_ten(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PTEN+(sn)]) | |
387 | #define ieee754sp_indef() (ieee754sp_spcvals[IEEE754_SPCVAL_INDEF]) | |
388 | #define ieee754sp_max(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMAX+(sn)]) | |
389 | #define ieee754sp_min(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIN+(sn)]) | |
390 | #define ieee754sp_mind(sn) (ieee754sp_spcvals[IEEE754_SPCVAL_PMIND+(sn)]) | |
391 | #define ieee754sp_1e31() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E31]) | |
392 | #define ieee754sp_1e63() (ieee754sp_spcvals[IEEE754_SPCVAL_P1E63]) | |
393 | ||
394 | /* | |
395 | * Indefinite integer value | |
396 | */ | |
1da177e4 LT |
397 | #define ieee754si_indef() INT_MAX |
398 | #ifdef LONG_LONG_MAX | |
399 | #define ieee754di_indef() LONG_LONG_MAX | |
400 | #else | |
401 | #define ieee754di_indef() ((s64)(~0ULL>>1)) | |
402 | #endif | |
403 | ||
404 | /* IEEE exception context, passed to handler */ | |
405 | struct ieee754xctx { | |
406 | const char *op; /* operation name */ | |
407 | int rt; /* result type */ | |
408 | union { | |
2209bcb1 RB |
409 | union ieee754sp sp; /* single precision */ |
410 | union ieee754dp dp; /* double precision */ | |
1da177e4 LT |
411 | #ifdef IEEE854_XP |
412 | ieee754xp xp; /* extended precision */ | |
413 | #endif | |
414 | int si; /* standard signed integer (32bits) */ | |
415 | s64 di; /* extended signed integer (64bits) */ | |
416 | } rv; /* default result format implied by op */ | |
417 | va_list ap; | |
418 | }; | |
419 | ||
420 | /* result types for xctx.rt */ | |
421 | #define IEEE754_RT_SP 0 | |
422 | #define IEEE754_RT_DP 1 | |
423 | #define IEEE754_RT_XP 2 | |
424 | #define IEEE754_RT_SI 3 | |
425 | #define IEEE754_RT_DI 4 | |
426 | ||
cae55066 | 427 | extern void __cold ieee754_xcpt(struct ieee754xctx *xcp); |
1da177e4 LT |
428 | |
429 | /* compat */ | |
430 | #define ieee754dp_fix(x) ieee754dp_tint(x) | |
431 | #define ieee754sp_fix(x) ieee754sp_tint(x) | |
a663bf90 RB |
432 | |
433 | #endif /* __ARCH_MIPS_MATH_EMU_IEEE754_H */ |