Commit | Line | Data |
---|---|---|
c906108c SS |
1 | #define ASSERT(EXPRESSION) \ |
2 | do { \ | |
3 | if (!(EXPRESSION)) { \ | |
4 | fprintf (stderr, "%s:%d: assertion failed - %s\n", \ | |
5 | __FILE__, __LINE__, #EXPRESSION); \ | |
6 | abort (); \ | |
7 | } \ | |
8 | } while (0) | |
9 | ||
10 | #define SIM_BITS_INLINE (INCLUDE_MODULE | INCLUDED_BY_MODULE) | |
11 | ||
12 | #include "milieu.h" | |
13 | #include "softfloat.h" | |
14 | #include "systfloat.h" | |
15 | #include "systmodes.h" | |
16 | ||
17 | /* #define SIM_FPU_INLINE (INCLUDE_MODULE | INCLUDED_BY_MODULE) */ | |
18 | ||
19 | ||
20 | #include "sim-bits.h" | |
21 | #include "sim-fpu.h" | |
22 | #include "sim-fpu.c" | |
23 | ||
24 | ||
25 | ||
26 | static int flags; | |
27 | ||
28 | int8 | |
29 | syst_float_flags_clear () | |
30 | { | |
31 | int old_flags = 0; | |
32 | int i = 1; | |
33 | while (flags >= i) | |
34 | { | |
35 | switch ((sim_fpu_status) (flags & i)) | |
36 | { | |
37 | case sim_fpu_status_denorm: | |
38 | break; | |
39 | case sim_fpu_status_invalid_snan: | |
40 | case sim_fpu_status_invalid_qnan: | |
41 | case sim_fpu_status_invalid_isi: | |
42 | case sim_fpu_status_invalid_idi: | |
43 | case sim_fpu_status_invalid_zdz: | |
44 | case sim_fpu_status_invalid_imz: | |
45 | case sim_fpu_status_invalid_cvi: | |
46 | case sim_fpu_status_invalid_cmp: | |
47 | case sim_fpu_status_invalid_sqrt: | |
48 | old_flags |= float_flag_invalid; /* v */ | |
49 | break; | |
50 | case sim_fpu_status_inexact: | |
51 | old_flags |= float_flag_inexact; /* x */ | |
52 | break; | |
53 | case sim_fpu_status_overflow: | |
54 | old_flags |= float_flag_overflow; /* o */ | |
55 | break; | |
56 | case sim_fpu_status_underflow: | |
57 | old_flags |= float_flag_underflow; /* u */ | |
58 | break; | |
59 | case sim_fpu_status_invalid_div0: | |
60 | old_flags |= float_flag_divbyzero; /* z */ | |
61 | break; | |
62 | case sim_fpu_status_rounded: | |
63 | break; | |
64 | } | |
65 | i <<= 1; | |
66 | } | |
67 | flags = 0; | |
68 | return old_flags; | |
69 | } | |
70 | ||
71 | ||
72 | sim_fpu_round rounding_mode; | |
73 | ||
74 | void | |
75 | syst_float_set_rounding_mode(int8 mode) | |
76 | { | |
77 | switch (mode) | |
78 | { | |
79 | case float_round_nearest_even: | |
80 | rounding_mode = sim_fpu_round_near; | |
81 | break; | |
82 | case float_round_down: | |
83 | rounding_mode = sim_fpu_round_down; | |
84 | break; | |
85 | case float_round_up: | |
86 | rounding_mode = sim_fpu_round_up; | |
87 | break; | |
88 | case float_round_to_zero: | |
89 | rounding_mode = sim_fpu_round_zero; | |
90 | break; | |
91 | } | |
92 | } | |
93 | ||
94 | ||
95 | float32 | |
96 | syst_int32_to_float32(int32 a) | |
97 | { | |
98 | float32 z; | |
99 | sim_fpu s; | |
100 | flags |= sim_fpu_i32to (&s, a, rounding_mode); | |
101 | flags |= sim_fpu_round_32 (&s, rounding_mode, 0); | |
102 | sim_fpu_to32 (&z, &s); | |
103 | return z; | |
104 | } | |
105 | ||
106 | float64 | |
107 | syst_int32_to_float64( int32 a ) | |
108 | { | |
109 | float64 z; | |
110 | sim_fpu s; | |
111 | flags |= sim_fpu_i32to (&s, a, rounding_mode); | |
112 | sim_fpu_to64 (&z, &s); | |
113 | return z; | |
114 | } | |
115 | ||
116 | int32 | |
117 | syst_float32_to_int32_round_to_zero( float32 a ) | |
118 | { | |
119 | int32 z; | |
120 | sim_fpu s; | |
121 | sim_fpu_32to (&s, a); | |
122 | flags |= sim_fpu_to32i (&z, &s, sim_fpu_round_zero); | |
123 | return z; | |
124 | } | |
125 | ||
126 | float64 | |
127 | syst_float32_to_float64 (float32 a) | |
128 | { | |
129 | float64 z; | |
130 | sim_fpu s; | |
131 | sim_fpu_32to (&s, a); | |
132 | flags |= sim_fpu_round_64 (&s, rounding_mode, 0); | |
133 | sim_fpu_to64 (&z, &s); | |
134 | return z; | |
135 | } | |
136 | ||
137 | float32 syst_float32_add( float32 a, float32 b ) | |
138 | { | |
139 | float32 z; | |
140 | sim_fpu A; | |
141 | sim_fpu B; | |
142 | sim_fpu ans; | |
143 | sim_fpu_32to (&A, a); | |
144 | sim_fpu_32to (&B, b); | |
145 | #if 0 | |
146 | fprintf (stdout, "\n "); | |
147 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
148 | fprintf (stdout, "\n+ "); | |
149 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
150 | fprintf (stdout, "\n= "); | |
151 | #endif | |
152 | flags |= sim_fpu_add (&ans, &A, &B); | |
153 | flags |= sim_fpu_round_32 (&ans, rounding_mode, 0); | |
154 | #if 0 | |
155 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
156 | fprintf (stdout, "\n"); | |
157 | #endif | |
158 | sim_fpu_to32 (&z, &ans); | |
159 | return z; | |
160 | } | |
161 | ||
162 | float32 syst_float32_sub( float32 a, float32 b ) | |
163 | { | |
164 | float32 z; | |
165 | sim_fpu A; | |
166 | sim_fpu B; | |
167 | sim_fpu ans; | |
168 | sim_fpu_32to (&A, a); | |
169 | sim_fpu_32to (&B, b); | |
170 | #if 0 | |
171 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
172 | fprintf (stdout, " + "); | |
173 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
174 | fprintf (stdout, " = "); | |
175 | #endif | |
176 | flags |= sim_fpu_sub (&ans, &A, &B); | |
177 | flags |= sim_fpu_round_32 (&ans, rounding_mode, 0); | |
178 | #if 0 | |
179 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
180 | fprintf (stdout, "\n"); | |
181 | #endif | |
182 | sim_fpu_to32 (&z, &ans); | |
183 | return z; | |
184 | } | |
185 | ||
186 | float32 syst_float32_mul( float32 a, float32 b ) | |
187 | { | |
188 | float32 z; | |
189 | sim_fpu A; | |
190 | sim_fpu B; | |
191 | sim_fpu ans; | |
192 | sim_fpu_32to (&A, a); | |
193 | sim_fpu_32to (&B, b); | |
194 | #if 0 | |
195 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
196 | fprintf (stdout, " + "); | |
197 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
198 | fprintf (stdout, " = "); | |
199 | #endif | |
200 | flags |= sim_fpu_mul (&ans, &A, &B); | |
201 | #if 0 | |
202 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
203 | #endif | |
204 | flags |= sim_fpu_round_32 (&ans, rounding_mode, 0); | |
205 | #if 0 | |
206 | sim_fpu_print_status (flags, (sim_fpu_print_func*) fprintf, stdout); | |
207 | fprintf (stdout, "\n"); | |
208 | #endif | |
209 | sim_fpu_to32 (&z, &ans); | |
210 | return z; | |
211 | } | |
212 | ||
213 | float32 syst_float32_div( float32 a, float32 b ) | |
214 | { | |
215 | float32 z; | |
216 | sim_fpu A; | |
217 | sim_fpu B; | |
218 | sim_fpu ans; | |
219 | sim_fpu_32to (&A, a); | |
220 | sim_fpu_32to (&B, b); | |
221 | flags |= sim_fpu_div (&ans, &A, &B); | |
222 | flags |= sim_fpu_round_32 (&ans, rounding_mode, 0); | |
223 | sim_fpu_to32 (&z, &ans); | |
224 | return z; | |
225 | } | |
226 | ||
227 | float32 syst_float32_sqrt( float32 a ) | |
228 | { | |
229 | float32 z; | |
230 | sim_fpu A; | |
231 | sim_fpu ans; | |
232 | sim_fpu_32to (&A, a); | |
233 | #if 0 | |
234 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
235 | fprintf (stdout, " sqrt> "); | |
236 | #endif | |
237 | flags |= sim_fpu_sqrt (&ans, &A); | |
238 | #if 0 | |
239 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
240 | #endif | |
241 | flags |= sim_fpu_round_32 (&ans, rounding_mode, 0); | |
242 | #if 0 | |
243 | fprintf (stdout, " (%x)\n", flags); | |
244 | #endif | |
245 | sim_fpu_to32 (&z, &ans); | |
246 | return z; | |
247 | } | |
248 | ||
249 | flag syst_float32_eq( float32 a, float32 b ) | |
250 | { | |
251 | sim_fpu A; | |
252 | sim_fpu B; | |
253 | int is; | |
254 | sim_fpu_32to (&A, a); | |
255 | sim_fpu_32to (&B, b); | |
256 | flags |= (sim_fpu_eq (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
257 | return is; | |
258 | } | |
259 | ||
260 | flag syst_float32_eq_signaling( float32 a, float32 b ) | |
261 | { | |
262 | sim_fpu A; | |
263 | sim_fpu B; | |
264 | int is; | |
265 | sim_fpu_32to (&A, a); | |
266 | sim_fpu_32to (&B, b); | |
267 | flags |= sim_fpu_eq (&is, &A, &B); | |
268 | return is; | |
269 | } | |
270 | ||
271 | flag syst_float32_le( float32 a, float32 b ) | |
272 | { | |
273 | sim_fpu A; | |
274 | sim_fpu B; | |
275 | int is; | |
276 | sim_fpu_32to (&A, a); | |
277 | sim_fpu_32to (&B, b); | |
278 | flags |= sim_fpu_le (&is, &A, &B); | |
279 | return is; | |
280 | } | |
281 | ||
282 | flag syst_float32_le_quiet( float32 a, float32 b ) | |
283 | { | |
284 | sim_fpu A; | |
285 | sim_fpu B; | |
286 | int is; | |
287 | sim_fpu_32to (&A, a); | |
288 | sim_fpu_32to (&B, b); | |
289 | flags |= (sim_fpu_le (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
290 | return is; | |
291 | } | |
292 | ||
293 | flag syst_float32_lt( float32 a, float32 b ) | |
294 | { | |
295 | sim_fpu A; | |
296 | sim_fpu B; | |
297 | int is; | |
298 | sim_fpu_32to (&A, a); | |
299 | sim_fpu_32to (&B, b); | |
300 | flags |= sim_fpu_lt (&is, &A, &B); | |
301 | return is; | |
302 | } | |
303 | ||
304 | flag syst_float32_lt_quiet( float32 a, float32 b ) | |
305 | { | |
306 | sim_fpu A; | |
307 | sim_fpu B; | |
308 | int is; | |
309 | sim_fpu_32to (&A, a); | |
310 | sim_fpu_32to (&B, b); | |
311 | flags |= (sim_fpu_lt (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
312 | return is; | |
313 | } | |
314 | ||
315 | int32 syst_float64_to_int32_round_to_zero( float64 a ) | |
316 | { | |
317 | int32 z; | |
318 | sim_fpu s; | |
319 | sim_fpu_64to (&s, a); | |
320 | flags |= sim_fpu_to32i (&z, &s, sim_fpu_round_zero); | |
321 | return z; | |
322 | } | |
323 | ||
324 | float32 syst_float64_to_float32( float64 a ) | |
325 | { | |
326 | float32 z; | |
327 | sim_fpu s; | |
328 | sim_fpu_64to (&s, a); | |
329 | #if 0 | |
330 | sim_fpu_print_fpu (&s, (sim_fpu_print_func*) fprintf, stdout); | |
331 | fprintf (stdout, " -> "); | |
332 | #endif | |
333 | flags |= sim_fpu_round_32 (&s, rounding_mode, 0); | |
334 | #if 0 | |
335 | sim_fpu_print_fpu (&s, (sim_fpu_print_func*) fprintf, stdout); | |
336 | sim_fpu_print_status (flags, (sim_fpu_print_func*) fprintf, stdout); | |
337 | printf ("\n"); | |
338 | #endif | |
339 | sim_fpu_to32 (&z, &s); | |
340 | return z; | |
341 | } | |
342 | ||
343 | float64 syst_float64_add( float64 a, float64 b ) | |
344 | { | |
345 | float64 z; | |
346 | sim_fpu A; | |
347 | sim_fpu B; | |
348 | sim_fpu ans; | |
349 | sim_fpu_64to (&A, a); | |
350 | sim_fpu_64to (&B, b); | |
351 | #if 0 | |
352 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
353 | fprintf (stdout, " + "); | |
354 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
355 | fprintf (stdout, " = "); | |
356 | #endif | |
357 | flags |= sim_fpu_add (&ans, &A, &B); | |
358 | #if 0 | |
359 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
360 | #endif | |
361 | flags |= sim_fpu_round_64 (&ans, rounding_mode, 0); | |
362 | #if 0 | |
363 | fprintf (stdout, " (%x)\n", flags); | |
364 | #endif | |
365 | sim_fpu_to64 (&z, &ans); | |
366 | return z; | |
367 | } | |
368 | ||
369 | float64 syst_float64_sub( float64 a, float64 b ) | |
370 | { | |
371 | float64 z; | |
372 | sim_fpu A; | |
373 | sim_fpu B; | |
374 | sim_fpu ans; | |
375 | sim_fpu_64to (&A, a); | |
376 | sim_fpu_64to (&B, b); | |
377 | #if 0 | |
378 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
379 | fprintf (stdout, " + "); | |
380 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
381 | fprintf (stdout, " = "); | |
382 | #endif | |
383 | flags |= sim_fpu_sub (&ans, &A, &B); | |
384 | #if 0 | |
385 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
386 | #endif | |
387 | flags |= sim_fpu_round_64 (&ans, rounding_mode, 0); | |
388 | #if 0 | |
389 | fprintf (stdout, " (%x)\n", flags); | |
390 | #endif | |
391 | sim_fpu_to64 (&z, &ans); | |
392 | return z; | |
393 | } | |
394 | ||
395 | float64 syst_float64_mul( float64 a, float64 b ) | |
396 | { | |
397 | float64 z; | |
398 | sim_fpu A; | |
399 | sim_fpu B; | |
400 | sim_fpu ans; | |
401 | sim_fpu_64to (&A, a); | |
402 | sim_fpu_64to (&B, b); | |
403 | #if 0 | |
404 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
405 | fprintf (stdout, " * "); | |
406 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
407 | fprintf (stdout, " = "); | |
408 | #endif | |
409 | flags |= sim_fpu_mul (&ans, &A, &B); | |
410 | #if 0 | |
411 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
412 | #endif | |
413 | flags |= sim_fpu_round_64 (&ans, rounding_mode, 0); | |
414 | #if 0 | |
415 | sim_fpu_print_status (flags, (sim_fpu_print_func*) fprintf, stdout); | |
416 | fprintf (stdout, "\n"); | |
417 | #endif | |
418 | sim_fpu_to64 (&z, &ans); | |
419 | return z; | |
420 | } | |
421 | ||
422 | float64 syst_float64_div( float64 a, float64 b ) | |
423 | { | |
424 | float64 z; | |
425 | sim_fpu A; | |
426 | sim_fpu B; | |
427 | sim_fpu ans; | |
428 | sim_fpu_64to (&A, a); | |
429 | sim_fpu_64to (&B, b); | |
430 | #if 0 | |
431 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
432 | fprintf (stdout, " + "); | |
433 | sim_fpu_print_fpu (&B, (sim_fpu_print_func*) fprintf, stdout); | |
434 | fprintf (stdout, " = "); | |
435 | #endif | |
436 | flags |= sim_fpu_div (&ans, &A, &B); | |
437 | #if 0 | |
438 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
439 | #endif | |
440 | flags |= sim_fpu_round_64 (&ans, rounding_mode, 0); | |
441 | #if 0 | |
442 | sim_fpu_print_status (flags, (sim_fpu_print_func*) fprintf, stdout); | |
443 | fprintf (stdout, "\n"); | |
444 | #endif | |
445 | sim_fpu_to64 (&z, &ans); | |
446 | return z; | |
447 | } | |
448 | ||
449 | float64 syst_float64_sqrt( float64 a ) | |
450 | { | |
451 | float64 z; | |
452 | sim_fpu A; | |
453 | sim_fpu ans; | |
454 | sim_fpu_64to (&A, a); | |
455 | #if 0 | |
456 | sim_fpu_print_fpu (&A, (sim_fpu_print_func*) fprintf, stdout); | |
457 | printf (" sqrt> "); | |
458 | printf ("\n"); | |
459 | #endif | |
460 | flags |= sim_fpu_sqrt (&ans, &A); | |
461 | #if 0 | |
462 | sim_fpu_print_fpu (&ans, (sim_fpu_print_func*) fprintf, stdout); | |
463 | #endif | |
464 | flags |= sim_fpu_round_64 (&ans, rounding_mode, 0); | |
465 | #if 0 | |
466 | sim_fpu_print_status (flags, (sim_fpu_print_func*) fprintf, stdout); | |
467 | fprintf (stdout, "\n"); | |
468 | #endif | |
469 | sim_fpu_to64 (&z, &ans); | |
470 | return z; | |
471 | } | |
472 | ||
473 | flag syst_float64_eq( float64 a, float64 b ) | |
474 | { | |
475 | sim_fpu A; | |
476 | sim_fpu B; | |
477 | int is; | |
478 | sim_fpu_64to (&A, a); | |
479 | sim_fpu_64to (&B, b); | |
480 | flags |= (sim_fpu_eq (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
481 | return is; | |
482 | } | |
483 | ||
484 | flag syst_float64_eq_signaling( float64 a, float64 b ) | |
485 | { | |
486 | sim_fpu A; | |
487 | sim_fpu B; | |
488 | int is; | |
489 | sim_fpu_64to (&A, a); | |
490 | sim_fpu_64to (&B, b); | |
491 | flags |= sim_fpu_eq (&is, &A, &B); | |
492 | return is; | |
493 | } | |
494 | ||
495 | flag syst_float64_le( float64 a, float64 b ) | |
496 | { | |
497 | sim_fpu A; | |
498 | sim_fpu B; | |
499 | int is; | |
500 | sim_fpu_64to (&A, a); | |
501 | sim_fpu_64to (&B, b); | |
502 | flags |= sim_fpu_le (&is, &A, &B); | |
503 | return is; | |
504 | } | |
505 | ||
506 | flag syst_float64_le_quiet( float64 a, float64 b ) | |
507 | { | |
508 | sim_fpu A; | |
509 | sim_fpu B; | |
510 | int is; | |
511 | sim_fpu_64to (&A, a); | |
512 | sim_fpu_64to (&B, b); | |
513 | flags |= (sim_fpu_le (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
514 | return is; | |
515 | } | |
516 | ||
517 | flag syst_float64_lt( float64 a, float64 b ) | |
518 | { | |
519 | sim_fpu A; | |
520 | sim_fpu B; | |
521 | int is; | |
522 | sim_fpu_64to (&A, a); | |
523 | sim_fpu_64to (&B, b); | |
524 | flags |= sim_fpu_lt (&is, &A, &B); | |
525 | return is; | |
526 | } | |
527 | ||
528 | flag syst_float64_lt_quiet( float64 a, float64 b ) | |
529 | { | |
530 | sim_fpu A; | |
531 | sim_fpu B; | |
532 | int is; | |
533 | sim_fpu_64to (&A, a); | |
534 | sim_fpu_64to (&B, b); | |
535 | flags |= (sim_fpu_lt (&is, &A, &B) & ~sim_fpu_status_invalid_qnan); | |
536 | return is; | |
537 | } | |
538 |