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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 <linux/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) \
133do { \
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) \
155do { \
156 UDItype __m0 = (m0), __m1 = (m1); \
157 (ph) = __builtin_alpha_umulh(__m0, __m1); \
158 (pl) = __m0 * __m1; \
159} while (0)
160#define UMUL_TIME 46
161#ifndef LONGLONG_STANDALONE
162#define udiv_qrnnd(q, r, n1, n0, d) \
163do { UDItype __r; \
164 (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
165 (r) = __r; \
166} while (0)
167extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype);
168#define UDIV_TIME 220
169#endif /* LONGLONG_STANDALONE */
170#endif /* __alpha */
171
172/***************************************
173 ************** ARM ******************
174 ***************************************/
175#if defined(__arm__) && W_TYPE_SIZE == 32
176#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
177 __asm__ ("adds %1, %4, %5\n" \
178 "adc %0, %2, %3" \
179 : "=r" ((USItype)(sh)), \
180 "=&r" ((USItype)(sl)) \
181 : "%r" ((USItype)(ah)), \
182 "rI" ((USItype)(bh)), \
183 "%r" ((USItype)(al)), \
184 "rI" ((USItype)(bl)))
185#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
186 __asm__ ("subs %1, %4, %5\n" \
187 "sbc %0, %2, %3" \
188 : "=r" ((USItype)(sh)), \
189 "=&r" ((USItype)(sl)) \
190 : "r" ((USItype)(ah)), \
191 "rI" ((USItype)(bh)), \
192 "r" ((USItype)(al)), \
193 "rI" ((USItype)(bl)))
194#if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__
195#define umul_ppmm(xh, xl, a, b) \
196 __asm__ ("%@ Inlined umul_ppmm\n" \
197 "mov %|r0, %2, lsr #16 @ AAAA\n" \
198 "mov %|r2, %3, lsr #16 @ BBBB\n" \
199 "bic %|r1, %2, %|r0, lsl #16 @ aaaa\n" \
200 "bic %0, %3, %|r2, lsl #16 @ bbbb\n" \
201 "mul %1, %|r1, %|r2 @ aaaa * BBBB\n" \
202 "mul %|r2, %|r0, %|r2 @ AAAA * BBBB\n" \
203 "mul %|r1, %0, %|r1 @ aaaa * bbbb\n" \
204 "mul %0, %|r0, %0 @ AAAA * bbbb\n" \
205 "adds %|r0, %1, %0 @ central sum\n" \
206 "addcs %|r2, %|r2, #65536\n" \
207 "adds %1, %|r1, %|r0, lsl #16\n" \
208 "adc %0, %|r2, %|r0, lsr #16" \
209 : "=&r" ((USItype)(xh)), \
210 "=r" ((USItype)(xl)) \
211 : "r" ((USItype)(a)), \
212 "r" ((USItype)(b)) \
213 : "r0", "r1", "r2")
214#else
215#define umul_ppmm(xh, xl, a, b) \
216 __asm__ ("%@ Inlined umul_ppmm\n" \
217 "umull %r1, %r0, %r2, %r3" \
218 : "=&r" ((USItype)(xh)), \
219 "=&r" ((USItype)(xl)) \
220 : "r" ((USItype)(a)), \
221 "r" ((USItype)(b)) \
222 : "r0", "r1")
223#endif
224#define UMUL_TIME 20
225#define UDIV_TIME 100
226#endif /* __arm__ */
227
228/***************************************
229 ************** CLIPPER **************
230 ***************************************/
231#if defined(__clipper__) && W_TYPE_SIZE == 32
232#define umul_ppmm(w1, w0, u, v) \
233 ({union {UDItype __ll; \
234 struct {USItype __l, __h; } __i; \
235 } __xx; \
236 __asm__ ("mulwux %2,%0" \
237 : "=r" (__xx.__ll) \
238 : "%0" ((USItype)(u)), \
239 "r" ((USItype)(v))); \
240 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
241#define smul_ppmm(w1, w0, u, v) \
242 ({union {DItype __ll; \
243 struct {SItype __l, __h; } __i; \
244 } __xx; \
245 __asm__ ("mulwx %2,%0" \
246 : "=r" (__xx.__ll) \
247 : "%0" ((SItype)(u)), \
248 "r" ((SItype)(v))); \
249 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
250#define __umulsidi3(u, v) \
251 ({UDItype __w; \
252 __asm__ ("mulwux %2,%0" \
253 : "=r" (__w) \
254 : "%0" ((USItype)(u)), \
255 "r" ((USItype)(v))); \
256 __w; })
257#endif /* __clipper__ */
258
259/***************************************
260 ************** GMICRO ***************
261 ***************************************/
262#if defined(__gmicro__) && W_TYPE_SIZE == 32
263#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
264 __asm__ ("add.w %5,%1\n" \
265 "addx %3,%0" \
266 : "=g" ((USItype)(sh)), \
267 "=&g" ((USItype)(sl)) \
268 : "%0" ((USItype)(ah)), \
269 "g" ((USItype)(bh)), \
270 "%1" ((USItype)(al)), \
271 "g" ((USItype)(bl)))
272#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
273 __asm__ ("sub.w %5,%1\n" \
274 "subx %3,%0" \
275 : "=g" ((USItype)(sh)), \
276 "=&g" ((USItype)(sl)) \
277 : "0" ((USItype)(ah)), \
278 "g" ((USItype)(bh)), \
279 "1" ((USItype)(al)), \
280 "g" ((USItype)(bl)))
281#define umul_ppmm(ph, pl, m0, m1) \
282 __asm__ ("mulx %3,%0,%1" \
283 : "=g" ((USItype)(ph)), \
284 "=r" ((USItype)(pl)) \
285 : "%0" ((USItype)(m0)), \
286 "g" ((USItype)(m1)))
287#define udiv_qrnnd(q, r, nh, nl, d) \
288 __asm__ ("divx %4,%0,%1" \
289 : "=g" ((USItype)(q)), \
290 "=r" ((USItype)(r)) \
291 : "1" ((USItype)(nh)), \
292 "0" ((USItype)(nl)), \
293 "g" ((USItype)(d)))
294#endif
295
296/***************************************
297 ************** HPPA *****************
298 ***************************************/
299#if defined(__hppa) && W_TYPE_SIZE == 32
300#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
301 __asm__ ("add %4,%5,%1\n" \
302 "addc %2,%3,%0" \
303 : "=r" ((USItype)(sh)), \
304 "=&r" ((USItype)(sl)) \
305 : "%rM" ((USItype)(ah)), \
306 "rM" ((USItype)(bh)), \
307 "%rM" ((USItype)(al)), \
308 "rM" ((USItype)(bl)))
309#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
310 __asm__ ("sub %4,%5,%1\n" \
311 "subb %2,%3,%0" \
312 : "=r" ((USItype)(sh)), \
313 "=&r" ((USItype)(sl)) \
314 : "rM" ((USItype)(ah)), \
315 "rM" ((USItype)(bh)), \
316 "rM" ((USItype)(al)), \
317 "rM" ((USItype)(bl)))
318#if 0 && defined(_PA_RISC1_1)
319/* xmpyu uses floating point register which is not allowed in Linux kernel. */
320#define umul_ppmm(wh, wl, u, v) \
321do { \
322 union {UDItype __ll; \
323 struct {USItype __h, __l; } __i; \
324 } __xx; \
325 __asm__ ("xmpyu %1,%2,%0" \
326 : "=*f" (__xx.__ll) \
327 : "*f" ((USItype)(u)), \
328 "*f" ((USItype)(v))); \
329 (wh) = __xx.__i.__h; \
330 (wl) = __xx.__i.__l; \
331} while (0)
332#define UMUL_TIME 8
333#define UDIV_TIME 60
334#else
335#define UMUL_TIME 40
336#define UDIV_TIME 80
337#endif
338#if 0 /* #ifndef LONGLONG_STANDALONE */
339#define udiv_qrnnd(q, r, n1, n0, d) \
340do { USItype __r; \
341 (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
342 (r) = __r; \
343} while (0)
344extern USItype __udiv_qrnnd();
345#endif /* LONGLONG_STANDALONE */
346#endif /* hppa */
347
348/***************************************
349 ************** I370 *****************
350 ***************************************/
351#if (defined(__i370__) || defined(__mvs__)) && W_TYPE_SIZE == 32
352#define umul_ppmm(xh, xl, m0, m1) \
353do { \
354 union {UDItype __ll; \
355 struct {USItype __h, __l; } __i; \
356 } __xx; \
357 USItype __m0 = (m0), __m1 = (m1); \
358 __asm__ ("mr %0,%3" \
359 : "=r" (__xx.__i.__h), \
360 "=r" (__xx.__i.__l) \
361 : "%1" (__m0), \
362 "r" (__m1)); \
363 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
364 (xh) += ((((SItype) __m0 >> 31) & __m1) \
365 + (((SItype) __m1 >> 31) & __m0)); \
366} while (0)
367#define smul_ppmm(xh, xl, m0, m1) \
368do { \
369 union {DItype __ll; \
370 struct {USItype __h, __l; } __i; \
371 } __xx; \
372 __asm__ ("mr %0,%3" \
373 : "=r" (__xx.__i.__h), \
374 "=r" (__xx.__i.__l) \
375 : "%1" (m0), \
376 "r" (m1)); \
377 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
378} while (0)
379#define sdiv_qrnnd(q, r, n1, n0, d) \
380do { \
381 union {DItype __ll; \
382 struct {USItype __h, __l; } __i; \
383 } __xx; \
384 __xx.__i.__h = n1; __xx.__i.__l = n0; \
385 __asm__ ("dr %0,%2" \
386 : "=r" (__xx.__ll) \
387 : "0" (__xx.__ll), "r" (d)); \
388 (q) = __xx.__i.__l; (r) = __xx.__i.__h; \
389} while (0)
390#endif
391
392/***************************************
393 ************** I386 *****************
394 ***************************************/
395#undef __i386__
396#if (defined(__i386__) || defined(__i486__)) && W_TYPE_SIZE == 32
397#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
398 __asm__ ("addl %5,%1\n" \
399 "adcl %3,%0" \
400 : "=r" ((USItype)(sh)), \
401 "=&r" ((USItype)(sl)) \
402 : "%0" ((USItype)(ah)), \
403 "g" ((USItype)(bh)), \
404 "%1" ((USItype)(al)), \
405 "g" ((USItype)(bl)))
406#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
407 __asm__ ("subl %5,%1\n" \
408 "sbbl %3,%0" \
409 : "=r" ((USItype)(sh)), \
410 "=&r" ((USItype)(sl)) \
411 : "0" ((USItype)(ah)), \
412 "g" ((USItype)(bh)), \
413 "1" ((USItype)(al)), \
414 "g" ((USItype)(bl)))
415#define umul_ppmm(w1, w0, u, v) \
416 __asm__ ("mull %3" \
417 : "=a" ((USItype)(w0)), \
418 "=d" ((USItype)(w1)) \
419 : "%0" ((USItype)(u)), \
420 "rm" ((USItype)(v)))
421#define udiv_qrnnd(q, r, n1, n0, d) \
422 __asm__ ("divl %4" \
423 : "=a" ((USItype)(q)), \
424 "=d" ((USItype)(r)) \
425 : "0" ((USItype)(n0)), \
426 "1" ((USItype)(n1)), \
427 "rm" ((USItype)(d)))
428#ifndef UMUL_TIME
429#define UMUL_TIME 40
430#endif
431#ifndef UDIV_TIME
432#define UDIV_TIME 40
433#endif
434#endif /* 80x86 */
435
436/***************************************
437 ************** I860 *****************
438 ***************************************/
439#if defined(__i860__) && W_TYPE_SIZE == 32
440#define rshift_rhlc(r, h, l, c) \
441 __asm__ ("shr %3,r0,r0\n" \
442 "shrd %1,%2,%0" \
443 "=r" (r) : "r" (h), "r" (l), "rn" (c))
444#endif /* i860 */
445
446/***************************************
447 ************** I960 *****************
448 ***************************************/
449#if defined(__i960__) && W_TYPE_SIZE == 32
450#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
451 __asm__ ("cmpo 1,0\n" \
452 "addc %5,%4,%1\n" \
453 "addc %3,%2,%0" \
454 : "=r" ((USItype)(sh)), \
455 "=&r" ((USItype)(sl)) \
456 : "%dI" ((USItype)(ah)), \
457 "dI" ((USItype)(bh)), \
458 "%dI" ((USItype)(al)), \
459 "dI" ((USItype)(bl)))
460#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
461 __asm__ ("cmpo 0,0\n" \
462 "subc %5,%4,%1\n" \
463 "subc %3,%2,%0" \
464 : "=r" ((USItype)(sh)), \
465 "=&r" ((USItype)(sl)) \
466 : "dI" ((USItype)(ah)), \
467 "dI" ((USItype)(bh)), \
468 "dI" ((USItype)(al)), \
469 "dI" ((USItype)(bl)))
470#define umul_ppmm(w1, w0, u, v) \
471 ({union {UDItype __ll; \
472 struct {USItype __l, __h; } __i; \
473 } __xx; \
474 __asm__ ("emul %2,%1,%0" \
475 : "=d" (__xx.__ll) \
476 : "%dI" ((USItype)(u)), \
477 "dI" ((USItype)(v))); \
478 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
479#define __umulsidi3(u, v) \
480 ({UDItype __w; \
481 __asm__ ("emul %2,%1,%0" \
482 : "=d" (__w) \
483 : "%dI" ((USItype)(u)), \
484 "dI" ((USItype)(v))); \
485 __w; })
486#define udiv_qrnnd(q, r, nh, nl, d) \
487do { \
488 union {UDItype __ll; \
489 struct {USItype __l, __h; } __i; \
490 } __nn; \
491 __nn.__i.__h = (nh); __nn.__i.__l = (nl); \
492 __asm__ ("ediv %d,%n,%0" \
493 : "=d" (__rq.__ll) \
494 : "dI" (__nn.__ll), \
495 "dI" ((USItype)(d))); \
496 (r) = __rq.__i.__l; (q) = __rq.__i.__h; \
497} while (0)
498#if defined(__i960mx) /* what is the proper symbol to test??? */
499#define rshift_rhlc(r, h, l, c) \
500do { \
501 union {UDItype __ll; \
502 struct {USItype __l, __h; } __i; \
503 } __nn; \
504 __nn.__i.__h = (h); __nn.__i.__l = (l); \
505 __asm__ ("shre %2,%1,%0" \
506 : "=d" (r) : "dI" (__nn.__ll), "dI" (c)); \
507}
508#endif /* i960mx */
509#endif /* i960 */
510
511/***************************************
512 ************** 68000 ****************
513 ***************************************/
514#if (defined(__mc68000__) || defined(__mc68020__) || defined(__NeXT__) || defined(mc68020)) && W_TYPE_SIZE == 32
515#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
516 __asm__ ("add%.l %5,%1\n" \
517 "addx%.l %3,%0" \
518 : "=d" ((USItype)(sh)), \
519 "=&d" ((USItype)(sl)) \
520 : "%0" ((USItype)(ah)), \
521 "d" ((USItype)(bh)), \
522 "%1" ((USItype)(al)), \
523 "g" ((USItype)(bl)))
524#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
525 __asm__ ("sub%.l %5,%1\n" \
526 "subx%.l %3,%0" \
527 : "=d" ((USItype)(sh)), \
528 "=&d" ((USItype)(sl)) \
529 : "0" ((USItype)(ah)), \
530 "d" ((USItype)(bh)), \
531 "1" ((USItype)(al)), \
532 "g" ((USItype)(bl)))
533#if (defined(__mc68020__) || defined(__NeXT__) || defined(mc68020))
534#define umul_ppmm(w1, w0, u, v) \
535 __asm__ ("mulu%.l %3,%1:%0" \
536 : "=d" ((USItype)(w0)), \
537 "=d" ((USItype)(w1)) \
538 : "%0" ((USItype)(u)), \
539 "dmi" ((USItype)(v)))
540#define UMUL_TIME 45
541#define udiv_qrnnd(q, r, n1, n0, d) \
542 __asm__ ("divu%.l %4,%1:%0" \
543 : "=d" ((USItype)(q)), \
544 "=d" ((USItype)(r)) \
545 : "0" ((USItype)(n0)), \
546 "1" ((USItype)(n1)), \
547 "dmi" ((USItype)(d)))
548#define UDIV_TIME 90
549#define sdiv_qrnnd(q, r, n1, n0, d) \
550 __asm__ ("divs%.l %4,%1:%0" \
551 : "=d" ((USItype)(q)), \
552 "=d" ((USItype)(r)) \
553 : "0" ((USItype)(n0)), \
554 "1" ((USItype)(n1)), \
555 "dmi" ((USItype)(d)))
556#else /* not mc68020 */
557#define umul_ppmm(xh, xl, a, b) \
558do { USItype __umul_tmp1, __umul_tmp2; \
559 __asm__ ("| Inlined umul_ppmm\n" \
560 "move%.l %5,%3\n" \
561 "move%.l %2,%0\n" \
562 "move%.w %3,%1\n" \
563 "swap %3\n" \
564 "swap %0\n" \
565 "mulu %2,%1\n" \
566 "mulu %3,%0\n" \
567 "mulu %2,%3\n" \
568 "swap %2\n" \
569 "mulu %5,%2\n" \
570 "add%.l %3,%2\n" \
571 "jcc 1f\n" \
572 "add%.l %#0x10000,%0\n" \
573 "1: move%.l %2,%3\n" \
574 "clr%.w %2\n" \
575 "swap %2\n" \
576 "swap %3\n" \
577 "clr%.w %3\n" \
578 "add%.l %3,%1\n" \
579 "addx%.l %2,%0\n" \
580 "| End inlined umul_ppmm" \
581 : "=&d" ((USItype)(xh)), "=&d" ((USItype)(xl)), \
582 "=d" (__umul_tmp1), "=&d" (__umul_tmp2) \
583 : "%2" ((USItype)(a)), "d" ((USItype)(b))); \
584} while (0)
585#define UMUL_TIME 100
586#define UDIV_TIME 400
587#endif /* not mc68020 */
588#endif /* mc68000 */
589
590/***************************************
591 ************** 88000 ****************
592 ***************************************/
593#if defined(__m88000__) && W_TYPE_SIZE == 32
594#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
595 __asm__ ("addu.co %1,%r4,%r5\n" \
596 "addu.ci %0,%r2,%r3" \
597 : "=r" ((USItype)(sh)), \
598 "=&r" ((USItype)(sl)) \
599 : "%rJ" ((USItype)(ah)), \
600 "rJ" ((USItype)(bh)), \
601 "%rJ" ((USItype)(al)), \
602 "rJ" ((USItype)(bl)))
603#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
604 __asm__ ("subu.co %1,%r4,%r5\n" \
605 "subu.ci %0,%r2,%r3" \
606 : "=r" ((USItype)(sh)), \
607 "=&r" ((USItype)(sl)) \
608 : "rJ" ((USItype)(ah)), \
609 "rJ" ((USItype)(bh)), \
610 "rJ" ((USItype)(al)), \
611 "rJ" ((USItype)(bl)))
612#if defined(__m88110__)
613#define umul_ppmm(wh, wl, u, v) \
614do { \
615 union {UDItype __ll; \
616 struct {USItype __h, __l; } __i; \
617 } __x; \
618 __asm__ ("mulu.d %0,%1,%2" : "=r" (__x.__ll) : "r" (u), "r" (v)); \
619 (wh) = __x.__i.__h; \
620 (wl) = __x.__i.__l; \
621} while (0)
622#define udiv_qrnnd(q, r, n1, n0, d) \
623 ({union {UDItype __ll; \
624 struct {USItype __h, __l; } __i; \
625 } __x, __q; \
626 __x.__i.__h = (n1); __x.__i.__l = (n0); \
627 __asm__ ("divu.d %0,%1,%2" \
628 : "=r" (__q.__ll) : "r" (__x.__ll), "r" (d)); \
629 (r) = (n0) - __q.__l * (d); (q) = __q.__l; })
630#define UMUL_TIME 5
631#define UDIV_TIME 25
632#else
633#define UMUL_TIME 17
634#define UDIV_TIME 150
635#endif /* __m88110__ */
636#endif /* __m88000__ */
637
638/***************************************
639 ************** MIPS *****************
640 ***************************************/
641#if defined(__mips__) && W_TYPE_SIZE == 32
642#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
643#define umul_ppmm(w1, w0, u, v) \
644do { \
645 UDItype __ll = (UDItype)(u) * (v); \
646 w1 = __ll >> 32; \
647 w0 = __ll; \
648} while (0)
649#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
650#define umul_ppmm(w1, w0, u, v) \
651 __asm__ ("multu %2,%3" \
652 : "=l" ((USItype)(w0)), \
653 "=h" ((USItype)(w1)) \
654 : "d" ((USItype)(u)), \
655 "d" ((USItype)(v)))
656#else
657#define umul_ppmm(w1, w0, u, v) \
658 __asm__ ("multu %2,%3\n" \
659 "mflo %0\n" \
660 "mfhi %1" \
661 : "=d" ((USItype)(w0)), \
662 "=d" ((USItype)(w1)) \
663 : "d" ((USItype)(u)), \
664 "d" ((USItype)(v)))
665#endif
666#define UMUL_TIME 10
667#define UDIV_TIME 100
668#endif /* __mips__ */
669
670/***************************************
671 ************** MIPS/64 **************
672 ***************************************/
673#if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
674#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
675#define umul_ppmm(w1, w0, u, v) \
676do { \
677 typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
678 __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \
679 w1 = __ll >> 64; \
680 w0 = __ll; \
681} while (0)
682#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
683#define umul_ppmm(w1, w0, u, v) \
684 __asm__ ("dmultu %2,%3" \
685 : "=l" ((UDItype)(w0)), \
686 "=h" ((UDItype)(w1)) \
687 : "d" ((UDItype)(u)), \
688 "d" ((UDItype)(v)))
689#else
690#define umul_ppmm(w1, w0, u, v) \
691 __asm__ ("dmultu %2,%3\n" \
692 "mflo %0\n" \
693 "mfhi %1" \
694 : "=d" ((UDItype)(w0)), \
695 "=d" ((UDItype)(w1)) \
696 : "d" ((UDItype)(u)), \
697 "d" ((UDItype)(v)))
698#endif
699#define UMUL_TIME 20
700#define UDIV_TIME 140
701#endif /* __mips__ */
702
703/***************************************
704 ************** 32000 ****************
705 ***************************************/
706#if defined(__ns32000__) && W_TYPE_SIZE == 32
707#define umul_ppmm(w1, w0, u, v) \
708 ({union {UDItype __ll; \
709 struct {USItype __l, __h; } __i; \
710 } __xx; \
711 __asm__ ("meid %2,%0" \
712 : "=g" (__xx.__ll) \
713 : "%0" ((USItype)(u)), \
714 "g" ((USItype)(v))); \
715 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
716#define __umulsidi3(u, v) \
717 ({UDItype __w; \
718 __asm__ ("meid %2,%0" \
719 : "=g" (__w) \
720 : "%0" ((USItype)(u)), \
721 "g" ((USItype)(v))); \
722 __w; })
723#define udiv_qrnnd(q, r, n1, n0, d) \
724 ({union {UDItype __ll; \
725 struct {USItype __l, __h; } __i; \
726 } __xx; \
727 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
728 __asm__ ("deid %2,%0" \
729 : "=g" (__xx.__ll) \
730 : "0" (__xx.__ll), \
731 "g" ((USItype)(d))); \
732 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
733#endif /* __ns32000__ */
734
735/***************************************
736 ************** PPC ******************
737 ***************************************/
738#if (defined(_ARCH_PPC) || defined(_IBMR2)) && W_TYPE_SIZE == 32
739#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
740do { \
741 if (__builtin_constant_p(bh) && (bh) == 0) \
742 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
743 : "=r" ((USItype)(sh)), \
744 "=&r" ((USItype)(sl)) \
745 : "%r" ((USItype)(ah)), \
746 "%r" ((USItype)(al)), \
747 "rI" ((USItype)(bl))); \
748 else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \
749 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
750 : "=r" ((USItype)(sh)), \
751 "=&r" ((USItype)(sl)) \
752 : "%r" ((USItype)(ah)), \
753 "%r" ((USItype)(al)), \
754 "rI" ((USItype)(bl))); \
755 else \
756 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
757 : "=r" ((USItype)(sh)), \
758 "=&r" ((USItype)(sl)) \
759 : "%r" ((USItype)(ah)), \
760 "r" ((USItype)(bh)), \
761 "%r" ((USItype)(al)), \
762 "rI" ((USItype)(bl))); \
763} while (0)
764#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
765do { \
766 if (__builtin_constant_p(ah) && (ah) == 0) \
767 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
768 : "=r" ((USItype)(sh)), \
769 "=&r" ((USItype)(sl)) \
770 : "r" ((USItype)(bh)), \
771 "rI" ((USItype)(al)), \
772 "r" ((USItype)(bl))); \
773 else if (__builtin_constant_p(ah) && (ah) == ~(USItype) 0) \
774 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
775 : "=r" ((USItype)(sh)), \
776 "=&r" ((USItype)(sl)) \
777 : "r" ((USItype)(bh)), \
778 "rI" ((USItype)(al)), \
779 "r" ((USItype)(bl))); \
780 else if (__builtin_constant_p(bh) && (bh) == 0) \
781 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
782 : "=r" ((USItype)(sh)), \
783 "=&r" ((USItype)(sl)) \
784 : "r" ((USItype)(ah)), \
785 "rI" ((USItype)(al)), \
786 "r" ((USItype)(bl))); \
787 else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \
788 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
789 : "=r" ((USItype)(sh)), \
790 "=&r" ((USItype)(sl)) \
791 : "r" ((USItype)(ah)), \
792 "rI" ((USItype)(al)), \
793 "r" ((USItype)(bl))); \
794 else \
795 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
796 : "=r" ((USItype)(sh)), \
797 "=&r" ((USItype)(sl)) \
798 : "r" ((USItype)(ah)), \
799 "r" ((USItype)(bh)), \
800 "rI" ((USItype)(al)), \
801 "r" ((USItype)(bl))); \
802} while (0)
803#if defined(_ARCH_PPC)
804#define umul_ppmm(ph, pl, m0, m1) \
805do { \
806 USItype __m0 = (m0), __m1 = (m1); \
807 __asm__ ("mulhwu %0,%1,%2" \
808 : "=r" ((USItype) ph) \
809 : "%r" (__m0), \
810 "r" (__m1)); \
811 (pl) = __m0 * __m1; \
812} while (0)
813#define UMUL_TIME 15
814#define smul_ppmm(ph, pl, m0, m1) \
815do { \
816 SItype __m0 = (m0), __m1 = (m1); \
817 __asm__ ("mulhw %0,%1,%2" \
818 : "=r" ((SItype) ph) \
819 : "%r" (__m0), \
820 "r" (__m1)); \
821 (pl) = __m0 * __m1; \
822} while (0)
823#define SMUL_TIME 14
824#define UDIV_TIME 120
825#else
826#define umul_ppmm(xh, xl, m0, m1) \
827do { \
828 USItype __m0 = (m0), __m1 = (m1); \
829 __asm__ ("mul %0,%2,%3" \
830 : "=r" ((USItype)(xh)), \
831 "=q" ((USItype)(xl)) \
832 : "r" (__m0), \
833 "r" (__m1)); \
834 (xh) += ((((SItype) __m0 >> 31) & __m1) \
835 + (((SItype) __m1 >> 31) & __m0)); \
836} while (0)
837#define UMUL_TIME 8
838#define smul_ppmm(xh, xl, m0, m1) \
839 __asm__ ("mul %0,%2,%3" \
840 : "=r" ((SItype)(xh)), \
841 "=q" ((SItype)(xl)) \
842 : "r" (m0), \
843 "r" (m1))
844#define SMUL_TIME 4
845#define sdiv_qrnnd(q, r, nh, nl, d) \
846 __asm__ ("div %0,%2,%4" \
847 : "=r" ((SItype)(q)), "=q" ((SItype)(r)) \
848 : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d)))
849#define UDIV_TIME 100
850#endif
851#endif /* Power architecture variants. */
852
853/***************************************
854 ************** PYR ******************
855 ***************************************/
856#if defined(__pyr__) && W_TYPE_SIZE == 32
857#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
858 __asm__ ("addw %5,%1\n" \
859 "addwc %3,%0" \
860 : "=r" ((USItype)(sh)), \
861 "=&r" ((USItype)(sl)) \
862 : "%0" ((USItype)(ah)), \
863 "g" ((USItype)(bh)), \
864 "%1" ((USItype)(al)), \
865 "g" ((USItype)(bl)))
866#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
867 __asm__ ("subw %5,%1\n" \
868 "subwb %3,%0" \
869 : "=r" ((USItype)(sh)), \
870 "=&r" ((USItype)(sl)) \
871 : "0" ((USItype)(ah)), \
872 "g" ((USItype)(bh)), \
873 "1" ((USItype)(al)), \
874 "g" ((USItype)(bl)))
875 /* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP. */
876#define umul_ppmm(w1, w0, u, v) \
877 ({union {UDItype __ll; \
878 struct {USItype __h, __l; } __i; \
879 } __xx; \
880 __asm__ ("movw %1,%R0\n" \
881 "uemul %2,%0" \
882 : "=&r" (__xx.__ll) \
883 : "g" ((USItype) (u)), \
884 "g" ((USItype)(v))); \
885 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
886#endif /* __pyr__ */
887
888/***************************************
889 ************** RT/ROMP **************
890 ***************************************/
891#if defined(__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
892#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
893 __asm__ ("a %1,%5\n" \
894 "ae %0,%3" \
895 : "=r" ((USItype)(sh)), \
896 "=&r" ((USItype)(sl)) \
897 : "%0" ((USItype)(ah)), \
898 "r" ((USItype)(bh)), \
899 "%1" ((USItype)(al)), \
900 "r" ((USItype)(bl)))
901#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
902 __asm__ ("s %1,%5\n" \
903 "se %0,%3" \
904 : "=r" ((USItype)(sh)), \
905 "=&r" ((USItype)(sl)) \
906 : "0" ((USItype)(ah)), \
907 "r" ((USItype)(bh)), \
908 "1" ((USItype)(al)), \
909 "r" ((USItype)(bl)))
910#define umul_ppmm(ph, pl, m0, m1) \
911do { \
912 USItype __m0 = (m0), __m1 = (m1); \
913 __asm__ ( \
914 "s r2,r2\n" \
915 "mts r10,%2\n" \
916 "m r2,%3\n" \
917 "m r2,%3\n" \
918 "m r2,%3\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 "cas %0,r2,r0\n" \
933 "mfs r10,%1" \
934 : "=r" ((USItype)(ph)), \
935 "=r" ((USItype)(pl)) \
936 : "%r" (__m0), \
937 "r" (__m1) \
938 : "r2"); \
939 (ph) += ((((SItype) __m0 >> 31) & __m1) \
940 + (((SItype) __m1 >> 31) & __m0)); \
941} while (0)
942#define UMUL_TIME 20
943#define UDIV_TIME 200
944#endif /* RT/ROMP */
945
946/***************************************
947 ************** SH2 ******************
948 ***************************************/
949#if (defined(__sh2__) || defined(__sh3__) || defined(__SH4__)) \
950 && W_TYPE_SIZE == 32
951#define umul_ppmm(w1, w0, u, v) \
952 __asm__ ( \
953 "dmulu.l %2,%3\n" \
954 "sts macl,%1\n" \
955 "sts mach,%0" \
956 : "=r" ((USItype)(w1)), \
957 "=r" ((USItype)(w0)) \
958 : "r" ((USItype)(u)), \
959 "r" ((USItype)(v)) \
960 : "macl", "mach")
961#define UMUL_TIME 5
962#endif
963
964/***************************************
965 ************** SPARC ****************
966 ***************************************/
967#if defined(__sparc__) && W_TYPE_SIZE == 32
968#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
969 __asm__ ("addcc %r4,%5,%1\n" \
970 "addx %r2,%3,%0" \
971 : "=r" ((USItype)(sh)), \
972 "=&r" ((USItype)(sl)) \
973 : "%rJ" ((USItype)(ah)), \
974 "rI" ((USItype)(bh)), \
975 "%rJ" ((USItype)(al)), \
976 "rI" ((USItype)(bl)) \
977 __CLOBBER_CC)
978#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
979 __asm__ ("subcc %r4,%5,%1\n" \
980 "subx %r2,%3,%0" \
981 : "=r" ((USItype)(sh)), \
982 "=&r" ((USItype)(sl)) \
983 : "rJ" ((USItype)(ah)), \
984 "rI" ((USItype)(bh)), \
985 "rJ" ((USItype)(al)), \
986 "rI" ((USItype)(bl)) \
987 __CLOBBER_CC)
988#if defined(__sparc_v8__)
989/* Don't match immediate range because, 1) it is not often useful,
990 2) the 'I' flag thinks of the range as a 13 bit signed interval,
991 while we want to match a 13 bit interval, sign extended to 32 bits,
992 but INTERPRETED AS UNSIGNED. */
993#define umul_ppmm(w1, w0, u, v) \
994 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
995 : "=r" ((USItype)(w1)), \
996 "=r" ((USItype)(w0)) \
997 : "r" ((USItype)(u)), \
998 "r" ((USItype)(v)))
999#define UMUL_TIME 5
1000#ifndef SUPERSPARC /* SuperSPARC's udiv only handles 53 bit dividends */
1001#define udiv_qrnnd(q, r, n1, n0, d) \
1002do { \
1003 USItype __q; \
1004 __asm__ ("mov %1,%%y;nop;nop;nop;udiv %2,%3,%0" \
1005 : "=r" ((USItype)(__q)) \
1006 : "r" ((USItype)(n1)), \
1007 "r" ((USItype)(n0)), \
1008 "r" ((USItype)(d))); \
1009 (r) = (n0) - __q * (d); \
1010 (q) = __q; \
1011} while (0)
1012#define UDIV_TIME 25
1013#endif /* SUPERSPARC */
1014#else /* ! __sparc_v8__ */
1015#if defined(__sparclite__)
1016/* This has hardware multiply but not divide. It also has two additional
1017 instructions scan (ffs from high bit) and divscc. */
1018#define umul_ppmm(w1, w0, u, v) \
1019 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1020 : "=r" ((USItype)(w1)), \
1021 "=r" ((USItype)(w0)) \
1022 : "r" ((USItype)(u)), \
1023 "r" ((USItype)(v)))
1024#define UMUL_TIME 5
1025#define udiv_qrnnd(q, r, n1, n0, d) \
1026 __asm__ ("! Inlined udiv_qrnnd\n" \
1027 "wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1028 "tst %%g0\n" \
1029 "divscc %3,%4,%%g1\n" \
1030 "divscc %%g1,%4,%%g1\n" \
1031 "divscc %%g1,%4,%%g1\n" \
1032 "divscc %%g1,%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,%0\n" \
1061 "rd %%y,%1\n" \
1062 "bl,a 1f\n" \
1063 "add %1,%4,%1\n" \
1064 "1: ! End of inline udiv_qrnnd" \
1065 : "=r" ((USItype)(q)), \
1066 "=r" ((USItype)(r)) \
1067 : "r" ((USItype)(n1)), \
1068 "r" ((USItype)(n0)), \
1069 "rI" ((USItype)(d)) \
1070 : "%g1" __AND_CLOBBER_CC)
1071#define UDIV_TIME 37
1072#endif /* __sparclite__ */
1073#endif /* __sparc_v8__ */
1074 /* Default to sparc v7 versions of umul_ppmm and udiv_qrnnd. */
1075#ifndef umul_ppmm
1076#define umul_ppmm(w1, w0, u, v) \
1077 __asm__ ("! Inlined umul_ppmm\n" \
1078 "wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n" \
1079 "sra %3,31,%%g2 ! Don't move this insn\n" \
1080 "and %2,%%g2,%%g2 ! Don't move this insn\n" \
1081 "andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1082 "mulscc %%g1,%3,%%g1\n" \
1083 "mulscc %%g1,%3,%%g1\n" \
1084 "mulscc %%g1,%3,%%g1\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 %%g1,0,%%g1\n" \
1115 "add %%g1,%%g2,%0\n" \
1116 "rd %%y,%1" \
1117 : "=r" ((USItype)(w1)), \
1118 "=r" ((USItype)(w0)) \
1119 : "%rI" ((USItype)(u)), \
1120 "r" ((USItype)(v)) \
1121 : "%g1", "%g2" __AND_CLOBBER_CC)
1122#define UMUL_TIME 39 /* 39 instructions */
1123/* It's quite necessary to add this much assembler for the sparc.
1124 The default udiv_qrnnd (in C) is more than 10 times slower! */
1125#define udiv_qrnnd(q, r, n1, n0, d) \
1126 __asm__ ("! Inlined udiv_qrnnd\n\t" \
1127 "mov 32,%%g1\n\t" \
1128 "subcc %1,%2,%%g0\n\t" \
1129 "1: bcs 5f\n\t" \
1130 "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
1131 "sub %1,%2,%1 ! this kills msb of n\n\t" \
1132 "addx %1,%1,%1 ! so this can't give carry\n\t" \
1133 "subcc %%g1,1,%%g1\n\t" \
1134 "2: bne 1b\n\t" \
1135 "subcc %1,%2,%%g0\n\t" \
1136 "bcs 3f\n\t" \
1137 "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
1138 "b 3f\n\t" \
1139 "sub %1,%2,%1 ! this kills msb of n\n\t" \
1140 "4: sub %1,%2,%1\n\t" \
1141 "5: addxcc %1,%1,%1\n\t" \
1142 "bcc 2b\n\t" \
1143 "subcc %%g1,1,%%g1\n\t" \
1144 "! Got carry from n. Subtract next step to cancel this carry.\n\t" \
1145 "bne 4b\n\t" \
1146 "addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n\t" \
1147 "sub %1,%2,%1\n\t" \
1148 "3: xnor %0,0,%0\n\t" \
1149 "! End of inline udiv_qrnnd\n" \
1150 : "=&r" ((USItype)(q)), \
1151 "=&r" ((USItype)(r)) \
1152 : "r" ((USItype)(d)), \
1153 "1" ((USItype)(n1)), \
1154 "0" ((USItype)(n0)) : "%g1", "cc")
1155#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1156#endif
1157#endif /* __sparc__ */
1158
1159/***************************************
1160 ************** VAX ******************
1161 ***************************************/
1162#if defined(__vax__) && W_TYPE_SIZE == 32
1163#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1164 __asm__ ("addl2 %5,%1\n" \
1165 "adwc %3,%0" \
1166 : "=g" ((USItype)(sh)), \
1167 "=&g" ((USItype)(sl)) \
1168 : "%0" ((USItype)(ah)), \
1169 "g" ((USItype)(bh)), \
1170 "%1" ((USItype)(al)), \
1171 "g" ((USItype)(bl)))
1172#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1173 __asm__ ("subl2 %5,%1\n" \
1174 "sbwc %3,%0" \
1175 : "=g" ((USItype)(sh)), \
1176 "=&g" ((USItype)(sl)) \
1177 : "0" ((USItype)(ah)), \
1178 "g" ((USItype)(bh)), \
1179 "1" ((USItype)(al)), \
1180 "g" ((USItype)(bl)))
1181#define umul_ppmm(xh, xl, m0, m1) \
1182do { \
1183 union {UDItype __ll; \
1184 struct {USItype __l, __h; } __i; \
1185 } __xx; \
1186 USItype __m0 = (m0), __m1 = (m1); \
1187 __asm__ ("emul %1,%2,$0,%0" \
1188 : "=g" (__xx.__ll) \
1189 : "g" (__m0), \
1190 "g" (__m1)); \
1191 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1192 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1193 + (((SItype) __m1 >> 31) & __m0)); \
1194} while (0)
1195#define sdiv_qrnnd(q, r, n1, n0, d) \
1196do { \
1197 union {DItype __ll; \
1198 struct {SItype __l, __h; } __i; \
1199 } __xx; \
1200 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1201 __asm__ ("ediv %3,%2,%0,%1" \
1202 : "=g" (q), "=g" (r) \
1203 : "g" (__xx.__ll), "g" (d)); \
1204} while (0)
1205#endif /* __vax__ */
1206
1207/***************************************
1208 ************** Z8000 ****************
1209 ***************************************/
1210#if defined(__z8000__) && W_TYPE_SIZE == 16
1211#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1212 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1213 : "=r" ((unsigned int)(sh)), \
1214 "=&r" ((unsigned int)(sl)) \
1215 : "%0" ((unsigned int)(ah)), \
1216 "r" ((unsigned int)(bh)), \
1217 "%1" ((unsigned int)(al)), \
1218 "rQR" ((unsigned int)(bl)))
1219#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1220 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1221 : "=r" ((unsigned int)(sh)), \
1222 "=&r" ((unsigned int)(sl)) \
1223 : "0" ((unsigned int)(ah)), \
1224 "r" ((unsigned int)(bh)), \
1225 "1" ((unsigned int)(al)), \
1226 "rQR" ((unsigned int)(bl)))
1227#define umul_ppmm(xh, xl, m0, m1) \
1228do { \
1229 union {long int __ll; \
1230 struct {unsigned int __h, __l; } __i; \
1231 } __xx; \
1232 unsigned int __m0 = (m0), __m1 = (m1); \
1233 __asm__ ("mult %S0,%H3" \
1234 : "=r" (__xx.__i.__h), \
1235 "=r" (__xx.__i.__l) \
1236 : "%1" (__m0), \
1237 "rQR" (__m1)); \
1238 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1239 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1240 + (((signed int) __m1 >> 15) & __m0)); \
1241} while (0)
1242#endif /* __z8000__ */
1243
1244#endif /* __GNUC__ */
1245
1246/***************************************
1247 *********** Generic Versions ********
1248 ***************************************/
1249#if !defined(umul_ppmm) && defined(__umulsidi3)
1250#define umul_ppmm(ph, pl, m0, m1) \
1251{ \
1252 UDWtype __ll = __umulsidi3(m0, m1); \
1253 ph = (UWtype) (__ll >> W_TYPE_SIZE); \
1254 pl = (UWtype) __ll; \
1255}
1256#endif
1257
1258#if !defined(__umulsidi3)
1259#define __umulsidi3(u, v) \
1260 ({UWtype __hi, __lo; \
1261 umul_ppmm(__hi, __lo, u, v); \
1262 ((UDWtype) __hi << W_TYPE_SIZE) | __lo; })
1263#endif
1264
1265 /* If this machine has no inline assembler, use C macros. */
1266
1267#if !defined(add_ssaaaa)
1268#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1269do { \
1270 UWtype __x; \
1271 __x = (al) + (bl); \
1272 (sh) = (ah) + (bh) + (__x < (al)); \
1273 (sl) = __x; \
1274} while (0)
1275#endif
1276
1277#if !defined(sub_ddmmss)
1278#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1279do { \
1280 UWtype __x; \
1281 __x = (al) - (bl); \
1282 (sh) = (ah) - (bh) - (__x > (al)); \
1283 (sl) = __x; \
1284} while (0)
1285#endif
1286
1287#if !defined(umul_ppmm)
1288#define umul_ppmm(w1, w0, u, v) \
1289do { \
1290 UWtype __x0, __x1, __x2, __x3; \
1291 UHWtype __ul, __vl, __uh, __vh; \
1292 UWtype __u = (u), __v = (v); \
1293 \
1294 __ul = __ll_lowpart(__u); \
1295 __uh = __ll_highpart(__u); \
1296 __vl = __ll_lowpart(__v); \
1297 __vh = __ll_highpart(__v); \
1298 \
1299 __x0 = (UWtype) __ul * __vl; \
1300 __x1 = (UWtype) __ul * __vh; \
1301 __x2 = (UWtype) __uh * __vl; \
1302 __x3 = (UWtype) __uh * __vh; \
1303 \
1304 __x1 += __ll_highpart(__x0);/* this can't give carry */ \
1305 __x1 += __x2; /* but this indeed can */ \
1306 if (__x1 < __x2) /* did we get it? */ \
1307 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1308 \
1309 (w1) = __x3 + __ll_highpart(__x1); \
1310 (w0) = (__ll_lowpart(__x1) << W_TYPE_SIZE/2) + __ll_lowpart(__x0); \
1311} while (0)
1312#endif
1313
1314#if !defined(umul_ppmm)
1315#define smul_ppmm(w1, w0, u, v) \
1316do { \
1317 UWtype __w1; \
1318 UWtype __m0 = (u), __m1 = (v); \
1319 umul_ppmm(__w1, w0, __m0, __m1); \
1320 (w1) = __w1 - (-(__m0 >> (W_TYPE_SIZE - 1)) & __m1) \
1321 - (-(__m1 >> (W_TYPE_SIZE - 1)) & __m0); \
1322} while (0)
1323#endif
1324
1325 /* Define this unconditionally, so it can be used for debugging. */
1326#define __udiv_qrnnd_c(q, r, n1, n0, d) \
1327do { \
1328 UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \
1329 __d1 = __ll_highpart(d); \
1330 __d0 = __ll_lowpart(d); \
1331 \
1332 __r1 = (n1) % __d1; \
1333 __q1 = (n1) / __d1; \
1334 __m = (UWtype) __q1 * __d0; \
1335 __r1 = __r1 * __ll_B | __ll_highpart(n0); \
1336 if (__r1 < __m) { \
1337 __q1--, __r1 += (d); \
1338 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \
1339 if (__r1 < __m) \
1340 __q1--, __r1 += (d); \
1341 } \
1342 __r1 -= __m; \
1343 \
1344 __r0 = __r1 % __d1; \
1345 __q0 = __r1 / __d1; \
1346 __m = (UWtype) __q0 * __d0; \
1347 __r0 = __r0 * __ll_B | __ll_lowpart(n0); \
1348 if (__r0 < __m) { \
1349 __q0--, __r0 += (d); \
1350 if (__r0 >= (d)) \
1351 if (__r0 < __m) \
1352 __q0--, __r0 += (d); \
1353 } \
1354 __r0 -= __m; \
1355 \
1356 (q) = (UWtype) __q1 * __ll_B | __q0; \
1357 (r) = __r0; \
1358} while (0)
1359
1360/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1361 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1362#if !defined(udiv_qrnnd) && defined(sdiv_qrnnd)
1363#define udiv_qrnnd(q, r, nh, nl, d) \
1364do { \
1365 UWtype __r; \
1366 (q) = __MPN(udiv_w_sdiv) (&__r, nh, nl, d); \
1367 (r) = __r; \
1368} while (0)
1369#endif
1370
1371 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1372#if !defined(udiv_qrnnd)
1373#define UDIV_NEEDS_NORMALIZATION 1
1374#define udiv_qrnnd __udiv_qrnnd_c
1375#endif
1376
1377#ifndef UDIV_NEEDS_NORMALIZATION
1378#define UDIV_NEEDS_NORMALIZATION 0
1379#endif