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Merge tag 'critical_fix_for_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / lib / mpi / longlong.h
blobd411355f238e2088247f0cbf51631c77ae78b10e
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 * Note: I added some stuff for use with gnupg
3 *
4 * Copyright (C) 1991, 1992, 1993, 1994, 1996, 1998,
5 * 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
6 *
7 * This file is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Library General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * This file is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
15 * License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this file; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * MA 02111-1307, USA. */
21
22 #include <asm-generic/bitops/count_zeros.h>
23
24 /* You have to define the following before including this file:
25 *
26 * UWtype -- An unsigned type, default type for operations (typically a "word")
27 * UHWtype -- An unsigned type, at least half the size of UWtype.
28 * UDWtype -- An unsigned type, at least twice as large a UWtype
29 * W_TYPE_SIZE -- size in bits of UWtype
30 *
31 * SItype, USItype -- Signed and unsigned 32 bit types.
32 * DItype, UDItype -- Signed and unsigned 64 bit types.
33 *
34 * On a 32 bit machine UWtype should typically be USItype;
35 * on a 64 bit machine, UWtype should typically be UDItype.
36 */
37
38 #define __BITS4 (W_TYPE_SIZE / 4)
39 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
40 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
41 #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
42
43 /* This is used to make sure no undesirable sharing between different libraries
44 that use this file takes place. */
45 #ifndef __MPN
46 #define __MPN(x) __##x
47 #endif
48
49 /* Define auxiliary asm macros.
50 *
51 * 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
52 * UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
53 * word product in HIGH_PROD and LOW_PROD.
54 *
55 * 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
56 * UDWtype product. This is just a variant of umul_ppmm.
57
58 * 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
59 * denominator) divides a UDWtype, composed by the UWtype integers
60 * HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
61 * in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
62 * than DENOMINATOR for correct operation. If, in addition, the most
63 * significant bit of DENOMINATOR must be 1, then the pre-processor symbol
64 * UDIV_NEEDS_NORMALIZATION is defined to 1.
65 * 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
66 * denominator). Like udiv_qrnnd but the numbers are signed. The quotient
67 * is rounded towards 0.
68 *
69 * 5) count_leading_zeros(count, x) counts the number of zero-bits from the
70 * msb to the first non-zero bit in the UWtype X. This is the number of
71 * steps X needs to be shifted left to set the msb. Undefined for X == 0,
72 * unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
73 *
74 * 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
75 * from the least significant end.
76 *
77 * 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
78 * high_addend_2, low_addend_2) adds two UWtype integers, composed by
79 * HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
80 * respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
81 * (i.e. carry out) is not stored anywhere, and is lost.
82 *
83 * 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
84 * high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
85 * composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
86 * LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
87 * and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
88 * and is lost.
89 *
90 * If any of these macros are left undefined for a particular CPU,
91 * C macros are used. */
92
93 /* The CPUs come in alphabetical order below.
94 *
95 * Please add support for more CPUs here, or improve the current support
96 * for the CPUs below! */
97
98 #if defined(__GNUC__) && !defined(NO_ASM)
99
100 /* We sometimes need to clobber "cc" with gcc2, but that would not be
101 understood by gcc1. Use cpp to avoid major code duplication. */
102 #if __GNUC__ < 2
103 #define __CLOBBER_CC
104 #define __AND_CLOBBER_CC
105 #else /* __GNUC__ >= 2 */
106 #define __CLOBBER_CC : "cc"
107 #define __AND_CLOBBER_CC , "cc"
108 #endif /* __GNUC__ < 2 */
109
110 /***************************************
111 ************** A29K *****************
112 ***************************************/
113 #if (defined(__a29k__) || defined(_AM29K)) && W_TYPE_SIZE == 32
114 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
115 __asm__ ("add %1,%4,%5\n" \
116 "addc %0,%2,%3" \
117 : "=r" ((USItype)(sh)), \
118 "=&r" ((USItype)(sl)) \
119 : "%r" ((USItype)(ah)), \
120 "rI" ((USItype)(bh)), \
121 "%r" ((USItype)(al)), \
122 "rI" ((USItype)(bl)))
123 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
124 __asm__ ("sub %1,%4,%5\n" \
125 "subc %0,%2,%3" \
126 : "=r" ((USItype)(sh)), \
127 "=&r" ((USItype)(sl)) \
128 : "r" ((USItype)(ah)), \
129 "rI" ((USItype)(bh)), \
130 "r" ((USItype)(al)), \
131 "rI" ((USItype)(bl)))
132 #define umul_ppmm(xh, xl, m0, m1) \
133 do { \
134 USItype __m0 = (m0), __m1 = (m1); \
135 __asm__ ("multiplu %0,%1,%2" \
136 : "=r" ((USItype)(xl)) \
137 : "r" (__m0), \
138 "r" (__m1)); \
139 __asm__ ("multmu %0,%1,%2" \
140 : "=r" ((USItype)(xh)) \
141 : "r" (__m0), \
142 "r" (__m1)); \
143 } while (0)
144 #define udiv_qrnnd(q, r, n1, n0, d) \
145 __asm__ ("dividu %0,%3,%4" \
146 : "=r" ((USItype)(q)), \
147 "=q" ((USItype)(r)) \
148 : "1" ((USItype)(n1)), \
149 "r" ((USItype)(n0)), \
150 "r" ((USItype)(d)))
151 #endif /* __a29k__ */
152
153 #if defined(__alpha) && W_TYPE_SIZE == 64
154 #define umul_ppmm(ph, pl, m0, m1) \
155 do { \
156 UDItype __m0 = (m0), __m1 = (m1); \
157 __asm__ ("umulh %r1,%2,%0" \
158 : "=r" ((UDItype) ph) \
159 : "%rJ" (__m0), \
160 "rI" (__m1)); \
161 (pl) = __m0 * __m1; \
162 } while (0)
163 #define UMUL_TIME 46
164 #ifndef LONGLONG_STANDALONE
165 #define udiv_qrnnd(q, r, n1, n0, d) \
166 do { UDItype __r; \
167 (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
168 (r) = __r; \
169 } while (0)
170 extern UDItype __udiv_qrnnd();
171 #define UDIV_TIME 220
172 #endif /* LONGLONG_STANDALONE */
173 #endif /* __alpha */
174
175 /***************************************
176 ************** ARM ******************
177 ***************************************/
178 #if defined(__arm__) && W_TYPE_SIZE == 32
179 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
180 __asm__ ("adds %1, %4, %5\n" \
181 "adc %0, %2, %3" \
182 : "=r" ((USItype)(sh)), \
183 "=&r" ((USItype)(sl)) \
184 : "%r" ((USItype)(ah)), \
185 "rI" ((USItype)(bh)), \
186 "%r" ((USItype)(al)), \
187 "rI" ((USItype)(bl)))
188 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
189 __asm__ ("subs %1, %4, %5\n" \
190 "sbc %0, %2, %3" \
191 : "=r" ((USItype)(sh)), \
192 "=&r" ((USItype)(sl)) \
193 : "r" ((USItype)(ah)), \
194 "rI" ((USItype)(bh)), \
195 "r" ((USItype)(al)), \
196 "rI" ((USItype)(bl)))
197 #if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__
198 #define umul_ppmm(xh, xl, a, b) \
199 __asm__ ("%@ Inlined umul_ppmm\n" \
200 "mov %|r0, %2, lsr #16 @ AAAA\n" \
201 "mov %|r2, %3, lsr #16 @ BBBB\n" \
202 "bic %|r1, %2, %|r0, lsl #16 @ aaaa\n" \
203 "bic %0, %3, %|r2, lsl #16 @ bbbb\n" \
204 "mul %1, %|r1, %|r2 @ aaaa * BBBB\n" \
205 "mul %|r2, %|r0, %|r2 @ AAAA * BBBB\n" \
206 "mul %|r1, %0, %|r1 @ aaaa * bbbb\n" \
207 "mul %0, %|r0, %0 @ AAAA * bbbb\n" \
208 "adds %|r0, %1, %0 @ central sum\n" \
209 "addcs %|r2, %|r2, #65536\n" \
210 "adds %1, %|r1, %|r0, lsl #16\n" \
211 "adc %0, %|r2, %|r0, lsr #16" \
212 : "=&r" ((USItype)(xh)), \
213 "=r" ((USItype)(xl)) \
214 : "r" ((USItype)(a)), \
215 "r" ((USItype)(b)) \
216 : "r0", "r1", "r2")
217 #else
218 #define umul_ppmm(xh, xl, a, b) \
219 __asm__ ("%@ Inlined umul_ppmm\n" \
220 "umull %r1, %r0, %r2, %r3" \
221 : "=&r" ((USItype)(xh)), \
222 "=r" ((USItype)(xl)) \
223 : "r" ((USItype)(a)), \
224 "r" ((USItype)(b)) \
225 : "r0", "r1")
226 #endif
227 #define UMUL_TIME 20
228 #define UDIV_TIME 100
229 #endif /* __arm__ */
230
231 /***************************************
232 ************** CLIPPER **************
233 ***************************************/
234 #if defined(__clipper__) && W_TYPE_SIZE == 32
235 #define umul_ppmm(w1, w0, u, v) \
236 ({union {UDItype __ll; \
237 struct {USItype __l, __h; } __i; \
238 } __xx; \
239 __asm__ ("mulwux %2,%0" \
240 : "=r" (__xx.__ll) \
241 : "%0" ((USItype)(u)), \
242 "r" ((USItype)(v))); \
243 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
244 #define smul_ppmm(w1, w0, u, v) \
245 ({union {DItype __ll; \
246 struct {SItype __l, __h; } __i; \
247 } __xx; \
248 __asm__ ("mulwx %2,%0" \
249 : "=r" (__xx.__ll) \
250 : "%0" ((SItype)(u)), \
251 "r" ((SItype)(v))); \
252 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
253 #define __umulsidi3(u, v) \
254 ({UDItype __w; \
255 __asm__ ("mulwux %2,%0" \
256 : "=r" (__w) \
257 : "%0" ((USItype)(u)), \
258 "r" ((USItype)(v))); \
259 __w; })
260 #endif /* __clipper__ */
261
262 /***************************************
263 ************** GMICRO ***************
264 ***************************************/
265 #if defined(__gmicro__) && W_TYPE_SIZE == 32
266 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
267 __asm__ ("add.w %5,%1\n" \
268 "addx %3,%0" \
269 : "=g" ((USItype)(sh)), \
270 "=&g" ((USItype)(sl)) \
271 : "%0" ((USItype)(ah)), \
272 "g" ((USItype)(bh)), \
273 "%1" ((USItype)(al)), \
274 "g" ((USItype)(bl)))
275 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
276 __asm__ ("sub.w %5,%1\n" \
277 "subx %3,%0" \
278 : "=g" ((USItype)(sh)), \
279 "=&g" ((USItype)(sl)) \
280 : "0" ((USItype)(ah)), \
281 "g" ((USItype)(bh)), \
282 "1" ((USItype)(al)), \
283 "g" ((USItype)(bl)))
284 #define umul_ppmm(ph, pl, m0, m1) \
285 __asm__ ("mulx %3,%0,%1" \
286 : "=g" ((USItype)(ph)), \
287 "=r" ((USItype)(pl)) \
288 : "%0" ((USItype)(m0)), \
289 "g" ((USItype)(m1)))
290 #define udiv_qrnnd(q, r, nh, nl, d) \
291 __asm__ ("divx %4,%0,%1" \
292 : "=g" ((USItype)(q)), \
293 "=r" ((USItype)(r)) \
294 : "1" ((USItype)(nh)), \
295 "0" ((USItype)(nl)), \
296 "g" ((USItype)(d)))
297 #endif
298
299 /***************************************
300 ************** HPPA *****************
301 ***************************************/
302 #if defined(__hppa) && W_TYPE_SIZE == 32
303 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
304 __asm__ ("add %4,%5,%1\n" \
305 "addc %2,%3,%0" \
306 : "=r" ((USItype)(sh)), \
307 "=&r" ((USItype)(sl)) \
308 : "%rM" ((USItype)(ah)), \
309 "rM" ((USItype)(bh)), \
310 "%rM" ((USItype)(al)), \
311 "rM" ((USItype)(bl)))
312 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
313 __asm__ ("sub %4,%5,%1\n" \
314 "subb %2,%3,%0" \
315 : "=r" ((USItype)(sh)), \
316 "=&r" ((USItype)(sl)) \
317 : "rM" ((USItype)(ah)), \
318 "rM" ((USItype)(bh)), \
319 "rM" ((USItype)(al)), \
320 "rM" ((USItype)(bl)))
321 #if 0 && defined(_PA_RISC1_1)
322 /* xmpyu uses floating point register which is not allowed in Linux kernel. */
323 #define umul_ppmm(wh, wl, u, v) \
324 do { \
325 union {UDItype __ll; \
326 struct {USItype __h, __l; } __i; \
327 } __xx; \
328 __asm__ ("xmpyu %1,%2,%0" \
329 : "=*f" (__xx.__ll) \
330 : "*f" ((USItype)(u)), \
331 "*f" ((USItype)(v))); \
332 (wh) = __xx.__i.__h; \
333 (wl) = __xx.__i.__l; \
334 } while (0)
335 #define UMUL_TIME 8
336 #define UDIV_TIME 60
337 #else
338 #define UMUL_TIME 40
339 #define UDIV_TIME 80
340 #endif
341 #if 0 /* #ifndef LONGLONG_STANDALONE */
342 #define udiv_qrnnd(q, r, n1, n0, d) \
343 do { USItype __r; \
344 (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
345 (r) = __r; \
346 } while (0)
347 extern USItype __udiv_qrnnd();
348 #endif /* LONGLONG_STANDALONE */
349 #endif /* hppa */
350
351 /***************************************
352 ************** I370 *****************
353 ***************************************/
354 #if (defined(__i370__) || defined(__mvs__)) && W_TYPE_SIZE == 32
355 #define umul_ppmm(xh, xl, m0, m1) \
356 do { \
357 union {UDItype __ll; \
358 struct {USItype __h, __l; } __i; \
359 } __xx; \
360 USItype __m0 = (m0), __m1 = (m1); \
361 __asm__ ("mr %0,%3" \
362 : "=r" (__xx.__i.__h), \
363 "=r" (__xx.__i.__l) \
364 : "%1" (__m0), \
365 "r" (__m1)); \
366 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
367 (xh) += ((((SItype) __m0 >> 31) & __m1) \
368 + (((SItype) __m1 >> 31) & __m0)); \
369 } while (0)
370 #define smul_ppmm(xh, xl, m0, m1) \
371 do { \
372 union {DItype __ll; \
373 struct {USItype __h, __l; } __i; \
374 } __xx; \
375 __asm__ ("mr %0,%3" \
376 : "=r" (__xx.__i.__h), \
377 "=r" (__xx.__i.__l) \
378 : "%1" (m0), \
379 "r" (m1)); \
380 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
381 } while (0)
382 #define sdiv_qrnnd(q, r, n1, n0, d) \
383 do { \
384 union {DItype __ll; \
385 struct {USItype __h, __l; } __i; \
386 } __xx; \
387 __xx.__i.__h = n1; __xx.__i.__l = n0; \
388 __asm__ ("dr %0,%2" \
389 : "=r" (__xx.__ll) \
390 : "0" (__xx.__ll), "r" (d)); \
391 (q) = __xx.__i.__l; (r) = __xx.__i.__h; \
392 } while (0)
393 #endif
394
395 /***************************************
396 ************** I386 *****************
397 ***************************************/
398 #undef __i386__
399 #if (defined(__i386__) || defined(__i486__)) && W_TYPE_SIZE == 32
400 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
401 __asm__ ("addl %5,%1\n" \
402 "adcl %3,%0" \
403 : "=r" ((USItype)(sh)), \
404 "=&r" ((USItype)(sl)) \
405 : "%0" ((USItype)(ah)), \
406 "g" ((USItype)(bh)), \
407 "%1" ((USItype)(al)), \
408 "g" ((USItype)(bl)))
409 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
410 __asm__ ("subl %5,%1\n" \
411 "sbbl %3,%0" \
412 : "=r" ((USItype)(sh)), \
413 "=&r" ((USItype)(sl)) \
414 : "0" ((USItype)(ah)), \
415 "g" ((USItype)(bh)), \
416 "1" ((USItype)(al)), \
417 "g" ((USItype)(bl)))
418 #define umul_ppmm(w1, w0, u, v) \
419 __asm__ ("mull %3" \
420 : "=a" ((USItype)(w0)), \
421 "=d" ((USItype)(w1)) \
422 : "%0" ((USItype)(u)), \
423 "rm" ((USItype)(v)))
424 #define udiv_qrnnd(q, r, n1, n0, d) \
425 __asm__ ("divl %4" \
426 : "=a" ((USItype)(q)), \
427 "=d" ((USItype)(r)) \
428 : "0" ((USItype)(n0)), \
429 "1" ((USItype)(n1)), \
430 "rm" ((USItype)(d)))
431 #ifndef UMUL_TIME
432 #define UMUL_TIME 40
433 #endif
434 #ifndef UDIV_TIME
435 #define UDIV_TIME 40
436 #endif
437 #endif /* 80x86 */
438
439 /***************************************
440 ************** I860 *****************
441 ***************************************/
442 #if defined(__i860__) && W_TYPE_SIZE == 32
443 #define rshift_rhlc(r, h, l, c) \
444 __asm__ ("shr %3,r0,r0\n" \
445 "shrd %1,%2,%0" \
446 "=r" (r) : "r" (h), "r" (l), "rn" (c))
447 #endif /* i860 */
448
449 /***************************************
450 ************** I960 *****************
451 ***************************************/
452 #if defined(__i960__) && W_TYPE_SIZE == 32
453 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
454 __asm__ ("cmpo 1,0\n" \
455 "addc %5,%4,%1\n" \
456 "addc %3,%2,%0" \
457 : "=r" ((USItype)(sh)), \
458 "=&r" ((USItype)(sl)) \
459 : "%dI" ((USItype)(ah)), \
460 "dI" ((USItype)(bh)), \
461 "%dI" ((USItype)(al)), \
462 "dI" ((USItype)(bl)))
463 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
464 __asm__ ("cmpo 0,0\n" \
465 "subc %5,%4,%1\n" \
466 "subc %3,%2,%0" \
467 : "=r" ((USItype)(sh)), \
468 "=&r" ((USItype)(sl)) \
469 : "dI" ((USItype)(ah)), \
470 "dI" ((USItype)(bh)), \
471 "dI" ((USItype)(al)), \
472 "dI" ((USItype)(bl)))
473 #define umul_ppmm(w1, w0, u, v) \
474 ({union {UDItype __ll; \
475 struct {USItype __l, __h; } __i; \
476 } __xx; \
477 __asm__ ("emul %2,%1,%0" \
478 : "=d" (__xx.__ll) \
479 : "%dI" ((USItype)(u)), \
480 "dI" ((USItype)(v))); \
481 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
482 #define __umulsidi3(u, v) \
483 ({UDItype __w; \
484 __asm__ ("emul %2,%1,%0" \
485 : "=d" (__w) \
486 : "%dI" ((USItype)(u)), \
487 "dI" ((USItype)(v))); \
488 __w; })
489 #define udiv_qrnnd(q, r, nh, nl, d) \
490 do { \
491 union {UDItype __ll; \
492 struct {USItype __l, __h; } __i; \
493 } __nn; \
494 __nn.__i.__h = (nh); __nn.__i.__l = (nl); \
495 __asm__ ("ediv %d,%n,%0" \
496 : "=d" (__rq.__ll) \
497 : "dI" (__nn.__ll), \
498 "dI" ((USItype)(d))); \
499 (r) = __rq.__i.__l; (q) = __rq.__i.__h; \
500 } while (0)
501 #if defined(__i960mx) /* what is the proper symbol to test??? */
502 #define rshift_rhlc(r, h, l, c) \
503 do { \
504 union {UDItype __ll; \
505 struct {USItype __l, __h; } __i; \
506 } __nn; \
507 __nn.__i.__h = (h); __nn.__i.__l = (l); \
508 __asm__ ("shre %2,%1,%0" \
509 : "=d" (r) : "dI" (__nn.__ll), "dI" (c)); \
510 }
511 #endif /* i960mx */
512 #endif /* i960 */
513
514 /***************************************
515 ************** 68000 ****************
516 ***************************************/
517 #if (defined(__mc68000__) || defined(__mc68020__) || defined(__NeXT__) || defined(mc68020)) && W_TYPE_SIZE == 32
518 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
519 __asm__ ("add%.l %5,%1\n" \
520 "addx%.l %3,%0" \
521 : "=d" ((USItype)(sh)), \
522 "=&d" ((USItype)(sl)) \
523 : "%0" ((USItype)(ah)), \
524 "d" ((USItype)(bh)), \
525 "%1" ((USItype)(al)), \
526 "g" ((USItype)(bl)))
527 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
528 __asm__ ("sub%.l %5,%1\n" \
529 "subx%.l %3,%0" \
530 : "=d" ((USItype)(sh)), \
531 "=&d" ((USItype)(sl)) \
532 : "0" ((USItype)(ah)), \
533 "d" ((USItype)(bh)), \
534 "1" ((USItype)(al)), \
535 "g" ((USItype)(bl)))
536 #if (defined(__mc68020__) || defined(__NeXT__) || defined(mc68020))
537 #define umul_ppmm(w1, w0, u, v) \
538 __asm__ ("mulu%.l %3,%1:%0" \
539 : "=d" ((USItype)(w0)), \
540 "=d" ((USItype)(w1)) \
541 : "%0" ((USItype)(u)), \
542 "dmi" ((USItype)(v)))
543 #define UMUL_TIME 45
544 #define udiv_qrnnd(q, r, n1, n0, d) \
545 __asm__ ("divu%.l %4,%1:%0" \
546 : "=d" ((USItype)(q)), \
547 "=d" ((USItype)(r)) \
548 : "0" ((USItype)(n0)), \
549 "1" ((USItype)(n1)), \
550 "dmi" ((USItype)(d)))
551 #define UDIV_TIME 90
552 #define sdiv_qrnnd(q, r, n1, n0, d) \
553 __asm__ ("divs%.l %4,%1:%0" \
554 : "=d" ((USItype)(q)), \
555 "=d" ((USItype)(r)) \
556 : "0" ((USItype)(n0)), \
557 "1" ((USItype)(n1)), \
558 "dmi" ((USItype)(d)))
559 #else /* not mc68020 */
560 #define umul_ppmm(xh, xl, a, b) \
561 do { USItype __umul_tmp1, __umul_tmp2; \
562 __asm__ ("| Inlined umul_ppmm\n" \
563 "move%.l %5,%3\n" \
564 "move%.l %2,%0\n" \
565 "move%.w %3,%1\n" \
566 "swap %3\n" \
567 "swap %0\n" \
568 "mulu %2,%1\n" \
569 "mulu %3,%0\n" \
570 "mulu %2,%3\n" \
571 "swap %2\n" \
572 "mulu %5,%2\n" \
573 "add%.l %3,%2\n" \
574 "jcc 1f\n" \
575 "add%.l %#0x10000,%0\n" \
576 "1: move%.l %2,%3\n" \
577 "clr%.w %2\n" \
578 "swap %2\n" \
579 "swap %3\n" \
580 "clr%.w %3\n" \
581 "add%.l %3,%1\n" \
582 "addx%.l %2,%0\n" \
583 "| End inlined umul_ppmm" \
584 : "=&d" ((USItype)(xh)), "=&d" ((USItype)(xl)), \
585 "=d" (__umul_tmp1), "=&d" (__umul_tmp2) \
586 : "%2" ((USItype)(a)), "d" ((USItype)(b))); \
587 } while (0)
588 #define UMUL_TIME 100
589 #define UDIV_TIME 400
590 #endif /* not mc68020 */
591 #endif /* mc68000 */
592
593 /***************************************
594 ************** 88000 ****************
595 ***************************************/
596 #if defined(__m88000__) && W_TYPE_SIZE == 32
597 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
598 __asm__ ("addu.co %1,%r4,%r5\n" \
599 "addu.ci %0,%r2,%r3" \
600 : "=r" ((USItype)(sh)), \
601 "=&r" ((USItype)(sl)) \
602 : "%rJ" ((USItype)(ah)), \
603 "rJ" ((USItype)(bh)), \
604 "%rJ" ((USItype)(al)), \
605 "rJ" ((USItype)(bl)))
606 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
607 __asm__ ("subu.co %1,%r4,%r5\n" \
608 "subu.ci %0,%r2,%r3" \
609 : "=r" ((USItype)(sh)), \
610 "=&r" ((USItype)(sl)) \
611 : "rJ" ((USItype)(ah)), \
612 "rJ" ((USItype)(bh)), \
613 "rJ" ((USItype)(al)), \
614 "rJ" ((USItype)(bl)))
615 #if defined(__m88110__)
616 #define umul_ppmm(wh, wl, u, v) \
617 do { \
618 union {UDItype __ll; \
619 struct {USItype __h, __l; } __i; \
620 } __x; \
621 __asm__ ("mulu.d %0,%1,%2" : "=r" (__x.__ll) : "r" (u), "r" (v)); \
622 (wh) = __x.__i.__h; \
623 (wl) = __x.__i.__l; \
624 } while (0)
625 #define udiv_qrnnd(q, r, n1, n0, d) \
626 ({union {UDItype __ll; \
627 struct {USItype __h, __l; } __i; \
628 } __x, __q; \
629 __x.__i.__h = (n1); __x.__i.__l = (n0); \
630 __asm__ ("divu.d %0,%1,%2" \
631 : "=r" (__q.__ll) : "r" (__x.__ll), "r" (d)); \
632 (r) = (n0) - __q.__l * (d); (q) = __q.__l; })
633 #define UMUL_TIME 5
634 #define UDIV_TIME 25
635 #else
636 #define UMUL_TIME 17
637 #define UDIV_TIME 150
638 #endif /* __m88110__ */
639 #endif /* __m88000__ */
640
641 /***************************************
642 ************** MIPS *****************
643 ***************************************/
644 #if defined(__mips__) && W_TYPE_SIZE == 32
645 #if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
646 #define umul_ppmm(w1, w0, u, v) \
647 do { \
648 UDItype __ll = (UDItype)(u) * (v); \
649 w1 = __ll >> 32; \
650 w0 = __ll; \
651 } while (0)
652 #elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
653 #define umul_ppmm(w1, w0, u, v) \
654 __asm__ ("multu %2,%3" \
655 : "=l" ((USItype)(w0)), \
656 "=h" ((USItype)(w1)) \
657 : "d" ((USItype)(u)), \
658 "d" ((USItype)(v)))
659 #else
660 #define umul_ppmm(w1, w0, u, v) \
661 __asm__ ("multu %2,%3\n" \
662 "mflo %0\n" \
663 "mfhi %1" \
664 : "=d" ((USItype)(w0)), \
665 "=d" ((USItype)(w1)) \
666 : "d" ((USItype)(u)), \
667 "d" ((USItype)(v)))
668 #endif
669 #define UMUL_TIME 10
670 #define UDIV_TIME 100
671 #endif /* __mips__ */
672
673 /***************************************
674 ************** MIPS/64 **************
675 ***************************************/
676 #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
677 #if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
678 #define umul_ppmm(w1, w0, u, v) \
679 do { \
680 typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
681 __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \
682 w1 = __ll >> 64; \
683 w0 = __ll; \
684 } while (0)
685 #elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
686 #define umul_ppmm(w1, w0, u, v) \
687 __asm__ ("dmultu %2,%3" \
688 : "=l" ((UDItype)(w0)), \
689 "=h" ((UDItype)(w1)) \
690 : "d" ((UDItype)(u)), \
691 "d" ((UDItype)(v)))
692 #else
693 #define umul_ppmm(w1, w0, u, v) \
694 __asm__ ("dmultu %2,%3\n" \
695 "mflo %0\n" \
696 "mfhi %1" \
697 : "=d" ((UDItype)(w0)), \
698 "=d" ((UDItype)(w1)) \
699 : "d" ((UDItype)(u)), \
700 "d" ((UDItype)(v)))
701 #endif
702 #define UMUL_TIME 20
703 #define UDIV_TIME 140
704 #endif /* __mips__ */
705
706 /***************************************
707 ************** 32000 ****************
708 ***************************************/
709 #if defined(__ns32000__) && W_TYPE_SIZE == 32
710 #define umul_ppmm(w1, w0, u, v) \
711 ({union {UDItype __ll; \
712 struct {USItype __l, __h; } __i; \
713 } __xx; \
714 __asm__ ("meid %2,%0" \
715 : "=g" (__xx.__ll) \
716 : "%0" ((USItype)(u)), \
717 "g" ((USItype)(v))); \
718 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
719 #define __umulsidi3(u, v) \
720 ({UDItype __w; \
721 __asm__ ("meid %2,%0" \
722 : "=g" (__w) \
723 : "%0" ((USItype)(u)), \
724 "g" ((USItype)(v))); \
725 __w; })
726 #define udiv_qrnnd(q, r, n1, n0, d) \
727 ({union {UDItype __ll; \
728 struct {USItype __l, __h; } __i; \
729 } __xx; \
730 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
731 __asm__ ("deid %2,%0" \
732 : "=g" (__xx.__ll) \
733 : "0" (__xx.__ll), \
734 "g" ((USItype)(d))); \
735 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
736 #endif /* __ns32000__ */
737
738 /***************************************
739 ************** PPC ******************
740 ***************************************/
741 #if (defined(_ARCH_PPC) || defined(_IBMR2)) && W_TYPE_SIZE == 32
742 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
743 do { \
744 if (__builtin_constant_p(bh) && (bh) == 0) \
745 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
746 : "=r" ((USItype)(sh)), \
747 "=&r" ((USItype)(sl)) \
748 : "%r" ((USItype)(ah)), \
749 "%r" ((USItype)(al)), \
750 "rI" ((USItype)(bl))); \
751 else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \
752 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
753 : "=r" ((USItype)(sh)), \
754 "=&r" ((USItype)(sl)) \
755 : "%r" ((USItype)(ah)), \
756 "%r" ((USItype)(al)), \
757 "rI" ((USItype)(bl))); \
758 else \
759 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
760 : "=r" ((USItype)(sh)), \
761 "=&r" ((USItype)(sl)) \
762 : "%r" ((USItype)(ah)), \
763 "r" ((USItype)(bh)), \
764 "%r" ((USItype)(al)), \
765 "rI" ((USItype)(bl))); \
766 } while (0)
767 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
768 do { \
769 if (__builtin_constant_p(ah) && (ah) == 0) \
770 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
771 : "=r" ((USItype)(sh)), \
772 "=&r" ((USItype)(sl)) \
773 : "r" ((USItype)(bh)), \
774 "rI" ((USItype)(al)), \
775 "r" ((USItype)(bl))); \
776 else if (__builtin_constant_p(ah) && (ah) == ~(USItype) 0) \
777 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
778 : "=r" ((USItype)(sh)), \
779 "=&r" ((USItype)(sl)) \
780 : "r" ((USItype)(bh)), \
781 "rI" ((USItype)(al)), \
782 "r" ((USItype)(bl))); \
783 else if (__builtin_constant_p(bh) && (bh) == 0) \
784 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
785 : "=r" ((USItype)(sh)), \
786 "=&r" ((USItype)(sl)) \
787 : "r" ((USItype)(ah)), \
788 "rI" ((USItype)(al)), \
789 "r" ((USItype)(bl))); \
790 else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \
791 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
792 : "=r" ((USItype)(sh)), \
793 "=&r" ((USItype)(sl)) \
794 : "r" ((USItype)(ah)), \
795 "rI" ((USItype)(al)), \
796 "r" ((USItype)(bl))); \
797 else \
798 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
799 : "=r" ((USItype)(sh)), \
800 "=&r" ((USItype)(sl)) \
801 : "r" ((USItype)(ah)), \
802 "r" ((USItype)(bh)), \
803 "rI" ((USItype)(al)), \
804 "r" ((USItype)(bl))); \
805 } while (0)
806 #if defined(_ARCH_PPC)
807 #define umul_ppmm(ph, pl, m0, m1) \
808 do { \
809 USItype __m0 = (m0), __m1 = (m1); \
810 __asm__ ("mulhwu %0,%1,%2" \
811 : "=r" ((USItype) ph) \
812 : "%r" (__m0), \
813 "r" (__m1)); \
814 (pl) = __m0 * __m1; \
815 } while (0)
816 #define UMUL_TIME 15
817 #define smul_ppmm(ph, pl, m0, m1) \
818 do { \
819 SItype __m0 = (m0), __m1 = (m1); \
820 __asm__ ("mulhw %0,%1,%2" \
821 : "=r" ((SItype) ph) \
822 : "%r" (__m0), \
823 "r" (__m1)); \
824 (pl) = __m0 * __m1; \
825 } while (0)
826 #define SMUL_TIME 14
827 #define UDIV_TIME 120
828 #else
829 #define umul_ppmm(xh, xl, m0, m1) \
830 do { \
831 USItype __m0 = (m0), __m1 = (m1); \
832 __asm__ ("mul %0,%2,%3" \
833 : "=r" ((USItype)(xh)), \
834 "=q" ((USItype)(xl)) \
835 : "r" (__m0), \
836 "r" (__m1)); \
837 (xh) += ((((SItype) __m0 >> 31) & __m1) \
838 + (((SItype) __m1 >> 31) & __m0)); \
839 } while (0)
840 #define UMUL_TIME 8
841 #define smul_ppmm(xh, xl, m0, m1) \
842 __asm__ ("mul %0,%2,%3" \
843 : "=r" ((SItype)(xh)), \
844 "=q" ((SItype)(xl)) \
845 : "r" (m0), \
846 "r" (m1))
847 #define SMUL_TIME 4
848 #define sdiv_qrnnd(q, r, nh, nl, d) \
849 __asm__ ("div %0,%2,%4" \
850 : "=r" ((SItype)(q)), "=q" ((SItype)(r)) \
851 : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d)))
852 #define UDIV_TIME 100
853 #endif
854 #endif /* Power architecture variants. */
855
856 /***************************************
857 ************** PYR ******************
858 ***************************************/
859 #if defined(__pyr__) && W_TYPE_SIZE == 32
860 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
861 __asm__ ("addw %5,%1\n" \
862 "addwc %3,%0" \
863 : "=r" ((USItype)(sh)), \
864 "=&r" ((USItype)(sl)) \
865 : "%0" ((USItype)(ah)), \
866 "g" ((USItype)(bh)), \
867 "%1" ((USItype)(al)), \
868 "g" ((USItype)(bl)))
869 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
870 __asm__ ("subw %5,%1\n" \
871 "subwb %3,%0" \
872 : "=r" ((USItype)(sh)), \
873 "=&r" ((USItype)(sl)) \
874 : "0" ((USItype)(ah)), \
875 "g" ((USItype)(bh)), \
876 "1" ((USItype)(al)), \
877 "g" ((USItype)(bl)))
878 /* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP. */
879 #define umul_ppmm(w1, w0, u, v) \
880 ({union {UDItype __ll; \
881 struct {USItype __h, __l; } __i; \
882 } __xx; \
883 __asm__ ("movw %1,%R0\n" \
884 "uemul %2,%0" \
885 : "=&r" (__xx.__ll) \
886 : "g" ((USItype) (u)), \
887 "g" ((USItype)(v))); \
888 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
889 #endif /* __pyr__ */
890
891 /***************************************
892 ************** RT/ROMP **************
893 ***************************************/
894 #if defined(__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
895 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
896 __asm__ ("a %1,%5\n" \
897 "ae %0,%3" \
898 : "=r" ((USItype)(sh)), \
899 "=&r" ((USItype)(sl)) \
900 : "%0" ((USItype)(ah)), \
901 "r" ((USItype)(bh)), \
902 "%1" ((USItype)(al)), \
903 "r" ((USItype)(bl)))
904 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
905 __asm__ ("s %1,%5\n" \
906 "se %0,%3" \
907 : "=r" ((USItype)(sh)), \
908 "=&r" ((USItype)(sl)) \
909 : "0" ((USItype)(ah)), \
910 "r" ((USItype)(bh)), \
911 "1" ((USItype)(al)), \
912 "r" ((USItype)(bl)))
913 #define umul_ppmm(ph, pl, m0, m1) \
914 do { \
915 USItype __m0 = (m0), __m1 = (m1); \
916 __asm__ ( \
917 "s r2,r2\n" \
918 "mts r10,%2\n" \
919 "m r2,%3\n" \
920 "m r2,%3\n" \
921 "m r2,%3\n" \
922 "m r2,%3\n" \
923 "m r2,%3\n" \
924 "m r2,%3\n" \
925 "m r2,%3\n" \
926 "m r2,%3\n" \
927 "m r2,%3\n" \
928 "m r2,%3\n" \
929 "m r2,%3\n" \
930 "m r2,%3\n" \
931 "m r2,%3\n" \
932 "m r2,%3\n" \
933 "m r2,%3\n" \
934 "m r2,%3\n" \
935 "cas %0,r2,r0\n" \
936 "mfs r10,%1" \
937 : "=r" ((USItype)(ph)), \
938 "=r" ((USItype)(pl)) \
939 : "%r" (__m0), \
940 "r" (__m1) \
941 : "r2"); \
942 (ph) += ((((SItype) __m0 >> 31) & __m1) \
943 + (((SItype) __m1 >> 31) & __m0)); \
944 } while (0)
945 #define UMUL_TIME 20
946 #define UDIV_TIME 200
947 #endif /* RT/ROMP */
948
949 /***************************************
950 ************** SH2 ******************
951 ***************************************/
952 #if (defined(__sh2__) || defined(__sh3__) || defined(__SH4__)) \
953 && W_TYPE_SIZE == 32
954 #define umul_ppmm(w1, w0, u, v) \
955 __asm__ ( \
956 "dmulu.l %2,%3\n" \
957 "sts macl,%1\n" \
958 "sts mach,%0" \
959 : "=r" ((USItype)(w1)), \
960 "=r" ((USItype)(w0)) \
961 : "r" ((USItype)(u)), \
962 "r" ((USItype)(v)) \
963 : "macl", "mach")
964 #define UMUL_TIME 5
965 #endif
966
967 /***************************************
968 ************** SPARC ****************
969 ***************************************/
970 #if defined(__sparc__) && W_TYPE_SIZE == 32
971 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
972 __asm__ ("addcc %r4,%5,%1\n" \
973 "addx %r2,%3,%0" \
974 : "=r" ((USItype)(sh)), \
975 "=&r" ((USItype)(sl)) \
976 : "%rJ" ((USItype)(ah)), \
977 "rI" ((USItype)(bh)), \
978 "%rJ" ((USItype)(al)), \
979 "rI" ((USItype)(bl)) \
980 __CLOBBER_CC)
981 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
982 __asm__ ("subcc %r4,%5,%1\n" \
983 "subx %r2,%3,%0" \
984 : "=r" ((USItype)(sh)), \
985 "=&r" ((USItype)(sl)) \
986 : "rJ" ((USItype)(ah)), \
987 "rI" ((USItype)(bh)), \
988 "rJ" ((USItype)(al)), \
989 "rI" ((USItype)(bl)) \
990 __CLOBBER_CC)
991 #if defined(__sparc_v8__)
992 /* Don't match immediate range because, 1) it is not often useful,
993 2) the 'I' flag thinks of the range as a 13 bit signed interval,
994 while we want to match a 13 bit interval, sign extended to 32 bits,
995 but INTERPRETED AS UNSIGNED. */
996 #define umul_ppmm(w1, w0, u, v) \
997 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
998 : "=r" ((USItype)(w1)), \
999 "=r" ((USItype)(w0)) \
1000 : "r" ((USItype)(u)), \
1001 "r" ((USItype)(v)))
1002 #define UMUL_TIME 5
1003 #ifndef SUPERSPARC /* SuperSPARC's udiv only handles 53 bit dividends */
1004 #define udiv_qrnnd(q, r, n1, n0, d) \
1005 do { \
1006 USItype __q; \
1007 __asm__ ("mov %1,%%y;nop;nop;nop;udiv %2,%3,%0" \
1008 : "=r" ((USItype)(__q)) \
1009 : "r" ((USItype)(n1)), \
1010 "r" ((USItype)(n0)), \
1011 "r" ((USItype)(d))); \
1012 (r) = (n0) - __q * (d); \
1013 (q) = __q; \
1014 } while (0)
1015 #define UDIV_TIME 25
1016 #endif /* SUPERSPARC */
1017 #else /* ! __sparc_v8__ */
1018 #if defined(__sparclite__)
1019 /* This has hardware multiply but not divide. It also has two additional
1020 instructions scan (ffs from high bit) and divscc. */
1021 #define umul_ppmm(w1, w0, u, v) \
1022 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1023 : "=r" ((USItype)(w1)), \
1024 "=r" ((USItype)(w0)) \
1025 : "r" ((USItype)(u)), \
1026 "r" ((USItype)(v)))
1027 #define UMUL_TIME 5
1028 #define udiv_qrnnd(q, r, n1, n0, d) \
1029 __asm__ ("! Inlined udiv_qrnnd\n" \
1030 "wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1031 "tst %%g0\n" \
1032 "divscc %3,%4,%%g1\n" \
1033 "divscc %%g1,%4,%%g1\n" \
1034 "divscc %%g1,%4,%%g1\n" \
1035 "divscc %%g1,%4,%%g1\n" \
1036 "divscc %%g1,%4,%%g1\n" \
1037 "divscc %%g1,%4,%%g1\n" \
1038 "divscc %%g1,%4,%%g1\n" \
1039 "divscc %%g1,%4,%%g1\n" \
1040 "divscc %%g1,%4,%%g1\n" \
1041 "divscc %%g1,%4,%%g1\n" \
1042 "divscc %%g1,%4,%%g1\n" \
1043 "divscc %%g1,%4,%%g1\n" \
1044 "divscc %%g1,%4,%%g1\n" \
1045 "divscc %%g1,%4,%%g1\n" \
1046 "divscc %%g1,%4,%%g1\n" \
1047 "divscc %%g1,%4,%%g1\n" \
1048 "divscc %%g1,%4,%%g1\n" \
1049 "divscc %%g1,%4,%%g1\n" \
1050 "divscc %%g1,%4,%%g1\n" \
1051 "divscc %%g1,%4,%%g1\n" \
1052 "divscc %%g1,%4,%%g1\n" \
1053 "divscc %%g1,%4,%%g1\n" \
1054 "divscc %%g1,%4,%%g1\n" \
1055 "divscc %%g1,%4,%%g1\n" \
1056 "divscc %%g1,%4,%%g1\n" \
1057 "divscc %%g1,%4,%%g1\n" \
1058 "divscc %%g1,%4,%%g1\n" \
1059 "divscc %%g1,%4,%%g1\n" \
1060 "divscc %%g1,%4,%%g1\n" \
1061 "divscc %%g1,%4,%%g1\n" \
1062 "divscc %%g1,%4,%%g1\n" \
1063 "divscc %%g1,%4,%0\n" \
1064 "rd %%y,%1\n" \
1065 "bl,a 1f\n" \
1066 "add %1,%4,%1\n" \
1067 "1: ! End of inline udiv_qrnnd" \
1068 : "=r" ((USItype)(q)), \
1069 "=r" ((USItype)(r)) \
1070 : "r" ((USItype)(n1)), \
1071 "r" ((USItype)(n0)), \
1072 "rI" ((USItype)(d)) \
1073 : "%g1" __AND_CLOBBER_CC)
1074 #define UDIV_TIME 37
1075 #endif /* __sparclite__ */
1076 #endif /* __sparc_v8__ */
1077 /* Default to sparc v7 versions of umul_ppmm and udiv_qrnnd. */
1078 #ifndef umul_ppmm
1079 #define umul_ppmm(w1, w0, u, v) \
1080 __asm__ ("! Inlined umul_ppmm\n" \
1081 "wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n" \
1082 "sra %3,31,%%g2 ! Don't move this insn\n" \
1083 "and %2,%%g2,%%g2 ! Don't move this insn\n" \
1084 "andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1085 "mulscc %%g1,%3,%%g1\n" \
1086 "mulscc %%g1,%3,%%g1\n" \
1087 "mulscc %%g1,%3,%%g1\n" \
1088 "mulscc %%g1,%3,%%g1\n" \
1089 "mulscc %%g1,%3,%%g1\n" \
1090 "mulscc %%g1,%3,%%g1\n" \
1091 "mulscc %%g1,%3,%%g1\n" \
1092 "mulscc %%g1,%3,%%g1\n" \
1093 "mulscc %%g1,%3,%%g1\n" \
1094 "mulscc %%g1,%3,%%g1\n" \
1095 "mulscc %%g1,%3,%%g1\n" \
1096 "mulscc %%g1,%3,%%g1\n" \
1097 "mulscc %%g1,%3,%%g1\n" \
1098 "mulscc %%g1,%3,%%g1\n" \
1099 "mulscc %%g1,%3,%%g1\n" \
1100 "mulscc %%g1,%3,%%g1\n" \
1101 "mulscc %%g1,%3,%%g1\n" \
1102 "mulscc %%g1,%3,%%g1\n" \
1103 "mulscc %%g1,%3,%%g1\n" \
1104 "mulscc %%g1,%3,%%g1\n" \
1105 "mulscc %%g1,%3,%%g1\n" \
1106 "mulscc %%g1,%3,%%g1\n" \
1107 "mulscc %%g1,%3,%%g1\n" \
1108 "mulscc %%g1,%3,%%g1\n" \
1109 "mulscc %%g1,%3,%%g1\n" \
1110 "mulscc %%g1,%3,%%g1\n" \
1111 "mulscc %%g1,%3,%%g1\n" \
1112 "mulscc %%g1,%3,%%g1\n" \
1113 "mulscc %%g1,%3,%%g1\n" \
1114 "mulscc %%g1,%3,%%g1\n" \
1115 "mulscc %%g1,%3,%%g1\n" \
1116 "mulscc %%g1,%3,%%g1\n" \
1117 "mulscc %%g1,0,%%g1\n" \
1118 "add %%g1,%%g2,%0\n" \
1119 "rd %%y,%1" \
1120 : "=r" ((USItype)(w1)), \
1121 "=r" ((USItype)(w0)) \
1122 : "%rI" ((USItype)(u)), \
1123 "r" ((USItype)(v)) \
1124 : "%g1", "%g2" __AND_CLOBBER_CC)
1125 #define UMUL_TIME 39 /* 39 instructions */
1126 /* It's quite necessary to add this much assembler for the sparc.
1127 The default udiv_qrnnd (in C) is more than 10 times slower! */
1128 #define udiv_qrnnd(q, r, n1, n0, d) \
1129 __asm__ ("! Inlined udiv_qrnnd\n\t" \
1130 "mov 32,%%g1\n\t" \
1131 "subcc %1,%2,%%g0\n\t" \
1132 "1: bcs 5f\n\t" \
1133 "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
1134 "sub %1,%2,%1 ! this kills msb of n\n\t" \
1135 "addx %1,%1,%1 ! so this can't give carry\n\t" \
1136 "subcc %%g1,1,%%g1\n\t" \
1137 "2: bne 1b\n\t" \
1138 "subcc %1,%2,%%g0\n\t" \
1139 "bcs 3f\n\t" \
1140 "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
1141 "b 3f\n\t" \
1142 "sub %1,%2,%1 ! this kills msb of n\n\t" \
1143 "4: sub %1,%2,%1\n\t" \
1144 "5: addxcc %1,%1,%1\n\t" \
1145 "bcc 2b\n\t" \
1146 "subcc %%g1,1,%%g1\n\t" \
1147 "! Got carry from n. Subtract next step to cancel this carry.\n\t" \
1148 "bne 4b\n\t" \
1149 "addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n\t" \
1150 "sub %1,%2,%1\n\t" \
1151 "3: xnor %0,0,%0\n\t" \
1152 "! End of inline udiv_qrnnd\n" \
1153 : "=&r" ((USItype)(q)), \
1154 "=&r" ((USItype)(r)) \
1155 : "r" ((USItype)(d)), \
1156 "1" ((USItype)(n1)), \
1157 "0" ((USItype)(n0)) : "%g1", "cc")
1158 #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1159 #endif
1160 #endif /* __sparc__ */
1161
1162 /***************************************
1163 ************** VAX ******************
1164 ***************************************/
1165 #if defined(__vax__) && W_TYPE_SIZE == 32
1166 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1167 __asm__ ("addl2 %5,%1\n" \
1168 "adwc %3,%0" \
1169 : "=g" ((USItype)(sh)), \
1170 "=&g" ((USItype)(sl)) \
1171 : "%0" ((USItype)(ah)), \
1172 "g" ((USItype)(bh)), \
1173 "%1" ((USItype)(al)), \
1174 "g" ((USItype)(bl)))
1175 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1176 __asm__ ("subl2 %5,%1\n" \
1177 "sbwc %3,%0" \
1178 : "=g" ((USItype)(sh)), \
1179 "=&g" ((USItype)(sl)) \
1180 : "0" ((USItype)(ah)), \
1181 "g" ((USItype)(bh)), \
1182 "1" ((USItype)(al)), \
1183 "g" ((USItype)(bl)))
1184 #define umul_ppmm(xh, xl, m0, m1) \
1185 do { \
1186 union {UDItype __ll; \
1187 struct {USItype __l, __h; } __i; \
1188 } __xx; \
1189 USItype __m0 = (m0), __m1 = (m1); \
1190 __asm__ ("emul %1,%2,$0,%0" \
1191 : "=g" (__xx.__ll) \
1192 : "g" (__m0), \
1193 "g" (__m1)); \
1194 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1195 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1196 + (((SItype) __m1 >> 31) & __m0)); \
1197 } while (0)
1198 #define sdiv_qrnnd(q, r, n1, n0, d) \
1199 do { \
1200 union {DItype __ll; \
1201 struct {SItype __l, __h; } __i; \
1202 } __xx; \
1203 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1204 __asm__ ("ediv %3,%2,%0,%1" \
1205 : "=g" (q), "=g" (r) \
1206 : "g" (__xx.__ll), "g" (d)); \
1207 } while (0)
1208 #endif /* __vax__ */
1209
1210 /***************************************
1211 ************** Z8000 ****************
1212 ***************************************/
1213 #if defined(__z8000__) && W_TYPE_SIZE == 16
1214 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1215 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1216 : "=r" ((unsigned int)(sh)), \
1217 "=&r" ((unsigned int)(sl)) \
1218 : "%0" ((unsigned int)(ah)), \
1219 "r" ((unsigned int)(bh)), \
1220 "%1" ((unsigned int)(al)), \
1221 "rQR" ((unsigned int)(bl)))
1222 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1223 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1224 : "=r" ((unsigned int)(sh)), \
1225 "=&r" ((unsigned int)(sl)) \
1226 : "0" ((unsigned int)(ah)), \
1227 "r" ((unsigned int)(bh)), \
1228 "1" ((unsigned int)(al)), \
1229 "rQR" ((unsigned int)(bl)))
1230 #define umul_ppmm(xh, xl, m0, m1) \
1231 do { \
1232 union {long int __ll; \
1233 struct {unsigned int __h, __l; } __i; \
1234 } __xx; \
1235 unsigned int __m0 = (m0), __m1 = (m1); \
1236 __asm__ ("mult %S0,%H3" \
1237 : "=r" (__xx.__i.__h), \
1238 "=r" (__xx.__i.__l) \
1239 : "%1" (__m0), \
1240 "rQR" (__m1)); \
1241 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1242 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1243 + (((signed int) __m1 >> 15) & __m0)); \
1244 } while (0)
1245 #endif /* __z8000__ */
1246
1247 #endif /* __GNUC__ */
1248
1249 /***************************************
1250 *********** Generic Versions ********
1251 ***************************************/
1252 #if !defined(umul_ppmm) && defined(__umulsidi3)
1253 #define umul_ppmm(ph, pl, m0, m1) \
1254 { \
1255 UDWtype __ll = __umulsidi3(m0, m1); \
1256 ph = (UWtype) (__ll >> W_TYPE_SIZE); \
1257 pl = (UWtype) __ll; \
1258 }
1259 #endif
1260
1261 #if !defined(__umulsidi3)
1262 #define __umulsidi3(u, v) \
1263 ({UWtype __hi, __lo; \
1264 umul_ppmm(__hi, __lo, u, v); \
1265 ((UDWtype) __hi << W_TYPE_SIZE) | __lo; })
1266 #endif
1267
1268 /* If this machine has no inline assembler, use C macros. */
1269
1270 #if !defined(add_ssaaaa)
1271 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1272 do { \
1273 UWtype __x; \
1274 __x = (al) + (bl); \
1275 (sh) = (ah) + (bh) + (__x < (al)); \
1276 (sl) = __x; \
1277 } while (0)
1278 #endif
1279
1280 #if !defined(sub_ddmmss)
1281 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1282 do { \
1283 UWtype __x; \
1284 __x = (al) - (bl); \
1285 (sh) = (ah) - (bh) - (__x > (al)); \
1286 (sl) = __x; \
1287 } while (0)
1288 #endif
1289
1290 #if !defined(umul_ppmm)
1291 #define umul_ppmm(w1, w0, u, v) \
1292 do { \
1293 UWtype __x0, __x1, __x2, __x3; \
1294 UHWtype __ul, __vl, __uh, __vh; \
1295 UWtype __u = (u), __v = (v); \
1296 \
1297 __ul = __ll_lowpart(__u); \
1298 __uh = __ll_highpart(__u); \
1299 __vl = __ll_lowpart(__v); \
1300 __vh = __ll_highpart(__v); \
1301 \
1302 __x0 = (UWtype) __ul * __vl; \
1303 __x1 = (UWtype) __ul * __vh; \
1304 __x2 = (UWtype) __uh * __vl; \
1305 __x3 = (UWtype) __uh * __vh; \
1306 \
1307 __x1 += __ll_highpart(__x0);/* this can't give carry */ \
1308 __x1 += __x2; /* but this indeed can */ \
1309 if (__x1 < __x2) /* did we get it? */ \
1310 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1311 \
1312 (w1) = __x3 + __ll_highpart(__x1); \
1313 (w0) = (__ll_lowpart(__x1) << W_TYPE_SIZE/2) + __ll_lowpart(__x0); \
1314 } while (0)
1315 #endif
1316
1317 #if !defined(umul_ppmm)
1318 #define smul_ppmm(w1, w0, u, v) \
1319 do { \
1320 UWtype __w1; \
1321 UWtype __m0 = (u), __m1 = (v); \
1322 umul_ppmm(__w1, w0, __m0, __m1); \
1323 (w1) = __w1 - (-(__m0 >> (W_TYPE_SIZE - 1)) & __m1) \
1324 - (-(__m1 >> (W_TYPE_SIZE - 1)) & __m0); \
1325 } while (0)
1326 #endif
1327
1328 /* Define this unconditionally, so it can be used for debugging. */
1329 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1330 do { \
1331 UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \
1332 __d1 = __ll_highpart(d); \
1333 __d0 = __ll_lowpart(d); \
1334 \
1335 __r1 = (n1) % __d1; \
1336 __q1 = (n1) / __d1; \
1337 __m = (UWtype) __q1 * __d0; \
1338 __r1 = __r1 * __ll_B | __ll_highpart(n0); \
1339 if (__r1 < __m) { \
1340 __q1--, __r1 += (d); \
1341 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \
1342 if (__r1 < __m) \
1343 __q1--, __r1 += (d); \
1344 } \
1345 __r1 -= __m; \
1346 \
1347 __r0 = __r1 % __d1; \
1348 __q0 = __r1 / __d1; \
1349 __m = (UWtype) __q0 * __d0; \
1350 __r0 = __r0 * __ll_B | __ll_lowpart(n0); \
1351 if (__r0 < __m) { \
1352 __q0--, __r0 += (d); \
1353 if (__r0 >= (d)) \
1354 if (__r0 < __m) \
1355 __q0--, __r0 += (d); \
1356 } \
1357 __r0 -= __m; \
1358 \
1359 (q) = (UWtype) __q1 * __ll_B | __q0; \
1360 (r) = __r0; \
1361 } while (0)
1362
1363 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1364 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1365 #if !defined(udiv_qrnnd) && defined(sdiv_qrnnd)
1366 #define udiv_qrnnd(q, r, nh, nl, d) \
1367 do { \
1368 UWtype __r; \
1369 (q) = __MPN(udiv_w_sdiv) (&__r, nh, nl, d); \
1370 (r) = __r; \
1371 } while (0)
1372 #endif
1373
1374 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1375 #if !defined(udiv_qrnnd)
1376 #define UDIV_NEEDS_NORMALIZATION 1
1377 #define udiv_qrnnd __udiv_qrnnd_c
1378 #endif
1379
1380 #ifndef UDIV_NEEDS_NORMALIZATION
1381 #define UDIV_NEEDS_NORMALIZATION 0
1382 #endif
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