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[glibc.git] / stdlib / longlong.h
blob6571207621930b9ffabb22db64213b60de82639b
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
5
6 This file is part of the GNU C Library.
7
8 The GNU C Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 In addition to the permissions in the GNU Lesser General Public
14 License, the Free Software Foundation gives you unlimited
15 permission to link the compiled version of this file into
16 combinations with other programs, and to distribute those
17 combinations without any restriction coming from the use of this
18 file. (The Lesser General Public License restrictions do apply in
19 other respects; for example, they cover modification of the file,
20 and distribution when not linked into a combine executable.)
21
22 The GNU C Library is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 Lesser General Public License for more details.
26
27 You should have received a copy of the GNU Lesser General Public
28 License along with the GNU C Library; if not, see
29 <http://www.gnu.org/licenses/>. */
30
31 /* You have to define the following before including this file:
32
33 UWtype -- An unsigned type, default type for operations (typically a "word")
34 UHWtype -- An unsigned type, at least half the size of UWtype.
35 UDWtype -- An unsigned type, at least twice as large a UWtype
36 W_TYPE_SIZE -- size in bits of UWtype
37
38 UQItype -- Unsigned 8 bit type.
39 SItype, USItype -- Signed and unsigned 32 bit types.
40 DItype, UDItype -- Signed and unsigned 64 bit types.
41
42 On a 32 bit machine UWtype should typically be USItype;
43 on a 64 bit machine, UWtype should typically be UDItype. */
44
45 #define __BITS4 (W_TYPE_SIZE / 4)
46 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
47 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
48 #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
49
50 #ifndef W_TYPE_SIZE
51 #define W_TYPE_SIZE 32
52 #define UWtype USItype
53 #define UHWtype USItype
54 #define UDWtype UDItype
55 #endif
56
57 /* Used in glibc only. */
58 #ifndef attribute_hidden
59 #define attribute_hidden
60 #endif
61
62 extern const UQItype __clz_tab[256] attribute_hidden;
63
64 /* Define auxiliary asm macros.
65
66 1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
67 UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
68 word product in HIGH_PROD and LOW_PROD.
69
70 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
71 UDWtype product. This is just a variant of umul_ppmm.
72
73 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
74 denominator) divides a UDWtype, composed by the UWtype integers
75 HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
76 in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
77 than DENOMINATOR for correct operation. If, in addition, the most
78 significant bit of DENOMINATOR must be 1, then the pre-processor symbol
79 UDIV_NEEDS_NORMALIZATION is defined to 1.
80
81 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
82 denominator). Like udiv_qrnnd but the numbers are signed. The quotient
83 is rounded towards 0.
84
85 5) count_leading_zeros(count, x) counts the number of zero-bits from the
86 msb to the first nonzero bit in the UWtype X. This is the number of
87 steps X needs to be shifted left to set the msb. Undefined for X == 0,
88 unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
89
90 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
91 from the least significant end.
92
93 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
94 high_addend_2, low_addend_2) adds two UWtype integers, composed by
95 HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
96 respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
97 (i.e. carry out) is not stored anywhere, and is lost.
98
99 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
100 high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
101 composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
102 LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
103 and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
104 and is lost.
105
106 If any of these macros are left undefined for a particular CPU,
107 C macros are used. */
108
109 /* The CPUs come in alphabetical order below.
110
111 Please add support for more CPUs here, or improve the current support
112 for the CPUs below!
113 (E.g. WE32100, IBM360.) */
114
115 #if defined (__GNUC__) && !defined (NO_ASM)
116
117 /* We sometimes need to clobber "cc" with gcc2, but that would not be
118 understood by gcc1. Use cpp to avoid major code duplication. */
119 #if __GNUC__ < 2
120 #define __CLOBBER_CC
121 #define __AND_CLOBBER_CC
122 #else /* __GNUC__ >= 2 */
123 #define __CLOBBER_CC : "cc"
124 #define __AND_CLOBBER_CC , "cc"
125 #endif /* __GNUC__ < 2 */
126
127 #if defined (__alpha) && W_TYPE_SIZE == 64
128 #define umul_ppmm(ph, pl, m0, m1) \
129 do { \
130 UDItype __m0 = (m0), __m1 = (m1); \
131 (ph) = __builtin_alpha_umulh (__m0, __m1); \
132 (pl) = __m0 * __m1; \
133 } while (0)
134 #define UMUL_TIME 46
135 #ifndef LONGLONG_STANDALONE
136 #define udiv_qrnnd(q, r, n1, n0, d) \
137 do { UDItype __r; \
138 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
139 (r) = __r; \
140 } while (0)
141 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
142 #define UDIV_TIME 220
143 #endif /* LONGLONG_STANDALONE */
144 #ifdef __alpha_cix__
145 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
146 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
147 #define COUNT_LEADING_ZEROS_0 64
148 #else
149 #define count_leading_zeros(COUNT,X) \
150 do { \
151 UDItype __xr = (X), __t, __a; \
152 __t = __builtin_alpha_cmpbge (0, __xr); \
153 __a = __clz_tab[__t ^ 0xff] - 1; \
154 __t = __builtin_alpha_extbl (__xr, __a); \
155 (COUNT) = 64 - (__clz_tab[__t] + __a*8); \
156 } while (0)
157 #define count_trailing_zeros(COUNT,X) \
158 do { \
159 UDItype __xr = (X), __t, __a; \
160 __t = __builtin_alpha_cmpbge (0, __xr); \
161 __t = ~__t & -~__t; \
162 __a = ((__t & 0xCC) != 0) * 2; \
163 __a += ((__t & 0xF0) != 0) * 4; \
164 __a += ((__t & 0xAA) != 0); \
165 __t = __builtin_alpha_extbl (__xr, __a); \
166 __a <<= 3; \
167 __t &= -__t; \
168 __a += ((__t & 0xCC) != 0) * 2; \
169 __a += ((__t & 0xF0) != 0) * 4; \
170 __a += ((__t & 0xAA) != 0); \
171 (COUNT) = __a; \
172 } while (0)
173 #endif /* __alpha_cix__ */
174 #endif /* __alpha */
175
176 #if defined (__arc__) && W_TYPE_SIZE == 32
177 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
178 __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
179 : "=r" ((USItype) (sh)), \
180 "=&r" ((USItype) (sl)) \
181 : "%r" ((USItype) (ah)), \
182 "rIJ" ((USItype) (bh)), \
183 "%r" ((USItype) (al)), \
184 "rIJ" ((USItype) (bl)))
185 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
186 __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
187 : "=r" ((USItype) (sh)), \
188 "=&r" ((USItype) (sl)) \
189 : "r" ((USItype) (ah)), \
190 "rIJ" ((USItype) (bh)), \
191 "r" ((USItype) (al)), \
192 "rIJ" ((USItype) (bl)))
193 /* Call libgcc routine. */
194 #define umul_ppmm(w1, w0, u, v) \
195 do { \
196 DWunion __w; \
197 __w.ll = __umulsidi3 (u, v); \
198 w1 = __w.s.high; \
199 w0 = __w.s.low; \
200 } while (0)
201 #define __umulsidi3 __umulsidi3
202 UDItype __umulsidi3 (USItype, USItype);
203 #endif
204
205 #if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
206 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
207 __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
208 : "=r" ((USItype) (sh)), \
209 "=&r" ((USItype) (sl)) \
210 : "%r" ((USItype) (ah)), \
211 "rI" ((USItype) (bh)), \
212 "%r" ((USItype) (al)), \
213 "rI" ((USItype) (bl)) __CLOBBER_CC)
214 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
215 __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
216 : "=r" ((USItype) (sh)), \
217 "=&r" ((USItype) (sl)) \
218 : "r" ((USItype) (ah)), \
219 "rI" ((USItype) (bh)), \
220 "r" ((USItype) (al)), \
221 "rI" ((USItype) (bl)) __CLOBBER_CC)
222 #define umul_ppmm(xh, xl, a, b) \
223 {register USItype __t0, __t1, __t2; \
224 __asm__ ("%@ Inlined umul_ppmm\n" \
225 " mov %2, %5, lsr #16\n" \
226 " mov %0, %6, lsr #16\n" \
227 " bic %3, %5, %2, lsl #16\n" \
228 " bic %4, %6, %0, lsl #16\n" \
229 " mul %1, %3, %4\n" \
230 " mul %4, %2, %4\n" \
231 " mul %3, %0, %3\n" \
232 " mul %0, %2, %0\n" \
233 " adds %3, %4, %3\n" \
234 " addcs %0, %0, #65536\n" \
235 " adds %1, %1, %3, lsl #16\n" \
236 " adc %0, %0, %3, lsr #16" \
237 : "=&r" ((USItype) (xh)), \
238 "=r" ((USItype) (xl)), \
239 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
240 : "r" ((USItype) (a)), \
241 "r" ((USItype) (b)) __CLOBBER_CC );}
242 #define UMUL_TIME 20
243 #define UDIV_TIME 100
244 #endif /* __arm__ */
245
246 #if defined(__arm__)
247 /* Let gcc decide how best to implement count_leading_zeros. */
248 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
249 #define COUNT_LEADING_ZEROS_0 32
250 #endif
251
252 #if defined (__CRIS__) && __CRIS_arch_version >= 3
253 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
254 #if __CRIS_arch_version >= 8
255 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
256 #endif
257 #endif /* __CRIS__ */
258
259 #if defined (__hppa) && W_TYPE_SIZE == 32
260 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
261 __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
262 : "=r" ((USItype) (sh)), \
263 "=&r" ((USItype) (sl)) \
264 : "%rM" ((USItype) (ah)), \
265 "rM" ((USItype) (bh)), \
266 "%rM" ((USItype) (al)), \
267 "rM" ((USItype) (bl)))
268 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
269 __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
270 : "=r" ((USItype) (sh)), \
271 "=&r" ((USItype) (sl)) \
272 : "rM" ((USItype) (ah)), \
273 "rM" ((USItype) (bh)), \
274 "rM" ((USItype) (al)), \
275 "rM" ((USItype) (bl)))
276 #if defined (_PA_RISC1_1)
277 #define umul_ppmm(w1, w0, u, v) \
278 do { \
279 union \
280 { \
281 UDItype __f; \
282 struct {USItype __w1, __w0;} __w1w0; \
283 } __t; \
284 __asm__ ("xmpyu %1,%2,%0" \
285 : "=x" (__t.__f) \
286 : "x" ((USItype) (u)), \
287 "x" ((USItype) (v))); \
288 (w1) = __t.__w1w0.__w1; \
289 (w0) = __t.__w1w0.__w0; \
290 } while (0)
291 #define UMUL_TIME 8
292 #else
293 #define UMUL_TIME 30
294 #endif
295 #define UDIV_TIME 40
296 #define count_leading_zeros(count, x) \
297 do { \
298 USItype __tmp; \
299 __asm__ ( \
300 "ldi 1,%0\n" \
301 " extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
302 " extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
303 " ldo 16(%0),%0 ; Yes. Perform add.\n" \
304 " extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
305 " extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
306 " ldo 8(%0),%0 ; Yes. Perform add.\n" \
307 " extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
308 " extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
309 " ldo 4(%0),%0 ; Yes. Perform add.\n" \
310 " extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
311 " extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
312 " ldo 2(%0),%0 ; Yes. Perform add.\n" \
313 " extru %1,30,1,%1 ; Extract bit 1.\n" \
314 " sub %0,%1,%0 ; Subtract it.\n" \
315 : "=r" (count), "=r" (__tmp) : "1" (x)); \
316 } while (0)
317 #endif
318
319 #if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
320 #if !defined (__zarch__)
321 #define smul_ppmm(xh, xl, m0, m1) \
322 do { \
323 union {DItype __ll; \
324 struct {USItype __h, __l;} __i; \
325 } __x; \
326 __asm__ ("lr %N0,%1\n\tmr %0,%2" \
327 : "=&r" (__x.__ll) \
328 : "r" (m0), "r" (m1)); \
329 (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
330 } while (0)
331 #define sdiv_qrnnd(q, r, n1, n0, d) \
332 do { \
333 union {DItype __ll; \
334 struct {USItype __h, __l;} __i; \
335 } __x; \
336 __x.__i.__h = n1; __x.__i.__l = n0; \
337 __asm__ ("dr %0,%2" \
338 : "=r" (__x.__ll) \
339 : "0" (__x.__ll), "r" (d)); \
340 (q) = __x.__i.__l; (r) = __x.__i.__h; \
341 } while (0)
342 #else
343 #define smul_ppmm(xh, xl, m0, m1) \
344 do { \
345 register SItype __r0 __asm__ ("0"); \
346 register SItype __r1 __asm__ ("1") = (m0); \
347 \
348 __asm__ ("mr\t%%r0,%3" \
349 : "=r" (__r0), "=r" (__r1) \
350 : "r" (__r1), "r" (m1)); \
351 (xh) = __r0; (xl) = __r1; \
352 } while (0)
353
354 #define sdiv_qrnnd(q, r, n1, n0, d) \
355 do { \
356 register SItype __r0 __asm__ ("0") = (n1); \
357 register SItype __r1 __asm__ ("1") = (n0); \
358 \
359 __asm__ ("dr\t%%r0,%4" \
360 : "=r" (__r0), "=r" (__r1) \
361 : "r" (__r0), "r" (__r1), "r" (d)); \
362 (q) = __r1; (r) = __r0; \
363 } while (0)
364 #endif /* __zarch__ */
365 #endif
366
367 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
368 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
369 __asm__ ("add{l} {%5,%1|%1,%5}\n\tadc{l} {%3,%0|%0,%3}" \
370 : "=r" ((USItype) (sh)), \
371 "=&r" ((USItype) (sl)) \
372 : "%0" ((USItype) (ah)), \
373 "g" ((USItype) (bh)), \
374 "%1" ((USItype) (al)), \
375 "g" ((USItype) (bl)))
376 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
377 __asm__ ("sub{l} {%5,%1|%1,%5}\n\tsbb{l} {%3,%0|%0,%3}" \
378 : "=r" ((USItype) (sh)), \
379 "=&r" ((USItype) (sl)) \
380 : "0" ((USItype) (ah)), \
381 "g" ((USItype) (bh)), \
382 "1" ((USItype) (al)), \
383 "g" ((USItype) (bl)))
384 #define umul_ppmm(w1, w0, u, v) \
385 __asm__ ("mul{l} %3" \
386 : "=a" ((USItype) (w0)), \
387 "=d" ((USItype) (w1)) \
388 : "%0" ((USItype) (u)), \
389 "rm" ((USItype) (v)))
390 #define udiv_qrnnd(q, r, n1, n0, dv) \
391 __asm__ ("div{l} %4" \
392 : "=a" ((USItype) (q)), \
393 "=d" ((USItype) (r)) \
394 : "0" ((USItype) (n0)), \
395 "1" ((USItype) (n1)), \
396 "rm" ((USItype) (dv)))
397 #define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
398 #define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
399 #define UMUL_TIME 40
400 #define UDIV_TIME 40
401 #endif /* 80x86 */
402
403 #if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
404 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
405 __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
406 : "=r" ((UDItype) (sh)), \
407 "=&r" ((UDItype) (sl)) \
408 : "%0" ((UDItype) (ah)), \
409 "rme" ((UDItype) (bh)), \
410 "%1" ((UDItype) (al)), \
411 "rme" ((UDItype) (bl)))
412 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
413 __asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
414 : "=r" ((UDItype) (sh)), \
415 "=&r" ((UDItype) (sl)) \
416 : "0" ((UDItype) (ah)), \
417 "rme" ((UDItype) (bh)), \
418 "1" ((UDItype) (al)), \
419 "rme" ((UDItype) (bl)))
420 #define umul_ppmm(w1, w0, u, v) \
421 __asm__ ("mul{q} %3" \
422 : "=a" ((UDItype) (w0)), \
423 "=d" ((UDItype) (w1)) \
424 : "%0" ((UDItype) (u)), \
425 "rm" ((UDItype) (v)))
426 #define udiv_qrnnd(q, r, n1, n0, dv) \
427 __asm__ ("div{q} %4" \
428 : "=a" ((UDItype) (q)), \
429 "=d" ((UDItype) (r)) \
430 : "0" ((UDItype) (n0)), \
431 "1" ((UDItype) (n1)), \
432 "rm" ((UDItype) (dv)))
433 #define count_leading_zeros(count, x) ((count) = __builtin_clzl (x))
434 #define count_trailing_zeros(count, x) ((count) = __builtin_ctzl (x))
435 #define UMUL_TIME 40
436 #define UDIV_TIME 40
437 #endif /* x86_64 */
438
439 #if defined (__i960__) && W_TYPE_SIZE == 32
440 #define umul_ppmm(w1, w0, u, v) \
441 ({union {UDItype __ll; \
442 struct {USItype __l, __h;} __i; \
443 } __xx; \
444 __asm__ ("emul %2,%1,%0" \
445 : "=d" (__xx.__ll) \
446 : "%dI" ((USItype) (u)), \
447 "dI" ((USItype) (v))); \
448 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
449 #define __umulsidi3(u, v) \
450 ({UDItype __w; \
451 __asm__ ("emul %2,%1,%0" \
452 : "=d" (__w) \
453 : "%dI" ((USItype) (u)), \
454 "dI" ((USItype) (v))); \
455 __w; })
456 #endif /* __i960__ */
457
458 #if defined (__ia64) && W_TYPE_SIZE == 64
459 /* This form encourages gcc (pre-release 3.4 at least) to emit predicated
460 "sub r=r,r" and "sub r=r,r,1", giving a 2 cycle latency. The generic
461 code using "al<bl" arithmetically comes out making an actual 0 or 1 in a
462 register, which takes an extra cycle. */
463 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
464 do { \
465 UWtype __x; \
466 __x = (al) - (bl); \
467 if ((al) < (bl)) \
468 (sh) = (ah) - (bh) - 1; \
469 else \
470 (sh) = (ah) - (bh); \
471 (sl) = __x; \
472 } while (0)
473
474 /* Do both product parts in assembly, since that gives better code with
475 all gcc versions. Some callers will just use the upper part, and in
476 that situation we waste an instruction, but not any cycles. */
477 #define umul_ppmm(ph, pl, m0, m1) \
478 __asm__ ("xma.hu %0 = %2, %3, f0\n\txma.l %1 = %2, %3, f0" \
479 : "=&f" (ph), "=f" (pl) \
480 : "f" (m0), "f" (m1))
481 #define count_leading_zeros(count, x) \
482 do { \
483 UWtype _x = (x), _y, _a, _c; \
484 __asm__ ("mux1 %0 = %1, @rev" : "=r" (_y) : "r" (_x)); \
485 __asm__ ("czx1.l %0 = %1" : "=r" (_a) : "r" (-_y | _y)); \
486 _c = (_a - 1) << 3; \
487 _x >>= _c; \
488 if (_x >= 1 << 4) \
489 _x >>= 4, _c += 4; \
490 if (_x >= 1 << 2) \
491 _x >>= 2, _c += 2; \
492 _c += _x >> 1; \
493 (count) = W_TYPE_SIZE - 1 - _c; \
494 } while (0)
495 /* similar to what gcc does for __builtin_ffs, but 0 based rather than 1
496 based, and we don't need a special case for x==0 here */
497 #define count_trailing_zeros(count, x) \
498 do { \
499 UWtype __ctz_x = (x); \
500 __asm__ ("popcnt %0 = %1" \
501 : "=r" (count) \
502 : "r" ((__ctz_x-1) & ~__ctz_x)); \
503 } while (0)
504 #define UMUL_TIME 14
505 #endif
506
507 #if defined (__M32R__) && W_TYPE_SIZE == 32
508 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
509 /* The cmp clears the condition bit. */ \
510 __asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
511 : "=r" ((USItype) (sh)), \
512 "=&r" ((USItype) (sl)) \
513 : "0" ((USItype) (ah)), \
514 "r" ((USItype) (bh)), \
515 "1" ((USItype) (al)), \
516 "r" ((USItype) (bl)) \
517 : "cbit")
518 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
519 /* The cmp clears the condition bit. */ \
520 __asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
521 : "=r" ((USItype) (sh)), \
522 "=&r" ((USItype) (sl)) \
523 : "0" ((USItype) (ah)), \
524 "r" ((USItype) (bh)), \
525 "1" ((USItype) (al)), \
526 "r" ((USItype) (bl)) \
527 : "cbit")
528 #endif /* __M32R__ */
529
530 #if defined (__mc68000__) && W_TYPE_SIZE == 32
531 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
532 __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
533 : "=d" ((USItype) (sh)), \
534 "=&d" ((USItype) (sl)) \
535 : "%0" ((USItype) (ah)), \
536 "d" ((USItype) (bh)), \
537 "%1" ((USItype) (al)), \
538 "g" ((USItype) (bl)))
539 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
540 __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
541 : "=d" ((USItype) (sh)), \
542 "=&d" ((USItype) (sl)) \
543 : "0" ((USItype) (ah)), \
544 "d" ((USItype) (bh)), \
545 "1" ((USItype) (al)), \
546 "g" ((USItype) (bl)))
547
548 /* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
549 #if (defined (__mc68020__) && !defined (__mc68060__))
550 #define umul_ppmm(w1, w0, u, v) \
551 __asm__ ("mulu%.l %3,%1:%0" \
552 : "=d" ((USItype) (w0)), \
553 "=d" ((USItype) (w1)) \
554 : "%0" ((USItype) (u)), \
555 "dmi" ((USItype) (v)))
556 #define UMUL_TIME 45
557 #define udiv_qrnnd(q, r, n1, n0, d) \
558 __asm__ ("divu%.l %4,%1:%0" \
559 : "=d" ((USItype) (q)), \
560 "=d" ((USItype) (r)) \
561 : "0" ((USItype) (n0)), \
562 "1" ((USItype) (n1)), \
563 "dmi" ((USItype) (d)))
564 #define UDIV_TIME 90
565 #define sdiv_qrnnd(q, r, n1, n0, d) \
566 __asm__ ("divs%.l %4,%1:%0" \
567 : "=d" ((USItype) (q)), \
568 "=d" ((USItype) (r)) \
569 : "0" ((USItype) (n0)), \
570 "1" ((USItype) (n1)), \
571 "dmi" ((USItype) (d)))
572
573 #elif defined (__mcoldfire__) /* not mc68020 */
574
575 #define umul_ppmm(xh, xl, a, b) \
576 __asm__ ("| Inlined umul_ppmm\n" \
577 " move%.l %2,%/d0\n" \
578 " move%.l %3,%/d1\n" \
579 " move%.l %/d0,%/d2\n" \
580 " swap %/d0\n" \
581 " move%.l %/d1,%/d3\n" \
582 " swap %/d1\n" \
583 " move%.w %/d2,%/d4\n" \
584 " mulu %/d3,%/d4\n" \
585 " mulu %/d1,%/d2\n" \
586 " mulu %/d0,%/d3\n" \
587 " mulu %/d0,%/d1\n" \
588 " move%.l %/d4,%/d0\n" \
589 " clr%.w %/d0\n" \
590 " swap %/d0\n" \
591 " add%.l %/d0,%/d2\n" \
592 " add%.l %/d3,%/d2\n" \
593 " jcc 1f\n" \
594 " add%.l %#65536,%/d1\n" \
595 "1: swap %/d2\n" \
596 " moveq %#0,%/d0\n" \
597 " move%.w %/d2,%/d0\n" \
598 " move%.w %/d4,%/d2\n" \
599 " move%.l %/d2,%1\n" \
600 " add%.l %/d1,%/d0\n" \
601 " move%.l %/d0,%0" \
602 : "=g" ((USItype) (xh)), \
603 "=g" ((USItype) (xl)) \
604 : "g" ((USItype) (a)), \
605 "g" ((USItype) (b)) \
606 : "d0", "d1", "d2", "d3", "d4")
607 #define UMUL_TIME 100
608 #define UDIV_TIME 400
609 #else /* not ColdFire */
610 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
611 #define umul_ppmm(xh, xl, a, b) \
612 __asm__ ("| Inlined umul_ppmm\n" \
613 " move%.l %2,%/d0\n" \
614 " move%.l %3,%/d1\n" \
615 " move%.l %/d0,%/d2\n" \
616 " swap %/d0\n" \
617 " move%.l %/d1,%/d3\n" \
618 " swap %/d1\n" \
619 " move%.w %/d2,%/d4\n" \
620 " mulu %/d3,%/d4\n" \
621 " mulu %/d1,%/d2\n" \
622 " mulu %/d0,%/d3\n" \
623 " mulu %/d0,%/d1\n" \
624 " move%.l %/d4,%/d0\n" \
625 " eor%.w %/d0,%/d0\n" \
626 " swap %/d0\n" \
627 " add%.l %/d0,%/d2\n" \
628 " add%.l %/d3,%/d2\n" \
629 " jcc 1f\n" \
630 " add%.l %#65536,%/d1\n" \
631 "1: swap %/d2\n" \
632 " moveq %#0,%/d0\n" \
633 " move%.w %/d2,%/d0\n" \
634 " move%.w %/d4,%/d2\n" \
635 " move%.l %/d2,%1\n" \
636 " add%.l %/d1,%/d0\n" \
637 " move%.l %/d0,%0" \
638 : "=g" ((USItype) (xh)), \
639 "=g" ((USItype) (xl)) \
640 : "g" ((USItype) (a)), \
641 "g" ((USItype) (b)) \
642 : "d0", "d1", "d2", "d3", "d4")
643 #define UMUL_TIME 100
644 #define UDIV_TIME 400
645
646 #endif /* not mc68020 */
647
648 /* The '020, '030, '040 and '060 have bitfield insns.
649 cpu32 disguises as a 68020, but lacks them. */
650 #if defined (__mc68020__) && !defined (__mcpu32__)
651 #define count_leading_zeros(count, x) \
652 __asm__ ("bfffo %1{%b2:%b2},%0" \
653 : "=d" ((USItype) (count)) \
654 : "od" ((USItype) (x)), "n" (0))
655 /* Some ColdFire architectures have a ff1 instruction supported via
656 __builtin_clz. */
657 #elif defined (__mcfisaaplus__) || defined (__mcfisac__)
658 #define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
659 #define COUNT_LEADING_ZEROS_0 32
660 #endif
661 #endif /* mc68000 */
662
663 #if defined (__m88000__) && W_TYPE_SIZE == 32
664 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
665 __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
666 : "=r" ((USItype) (sh)), \
667 "=&r" ((USItype) (sl)) \
668 : "%rJ" ((USItype) (ah)), \
669 "rJ" ((USItype) (bh)), \
670 "%rJ" ((USItype) (al)), \
671 "rJ" ((USItype) (bl)))
672 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
673 __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
674 : "=r" ((USItype) (sh)), \
675 "=&r" ((USItype) (sl)) \
676 : "rJ" ((USItype) (ah)), \
677 "rJ" ((USItype) (bh)), \
678 "rJ" ((USItype) (al)), \
679 "rJ" ((USItype) (bl)))
680 #define count_leading_zeros(count, x) \
681 do { \
682 USItype __cbtmp; \
683 __asm__ ("ff1 %0,%1" \
684 : "=r" (__cbtmp) \
685 : "r" ((USItype) (x))); \
686 (count) = __cbtmp ^ 31; \
687 } while (0)
688 #define COUNT_LEADING_ZEROS_0 63 /* sic */
689 #if defined (__mc88110__)
690 #define umul_ppmm(wh, wl, u, v) \
691 do { \
692 union {UDItype __ll; \
693 struct {USItype __h, __l;} __i; \
694 } __xx; \
695 __asm__ ("mulu.d %0,%1,%2" \
696 : "=r" (__xx.__ll) \
697 : "r" ((USItype) (u)), \
698 "r" ((USItype) (v))); \
699 (wh) = __xx.__i.__h; \
700 (wl) = __xx.__i.__l; \
701 } while (0)
702 #define udiv_qrnnd(q, r, n1, n0, d) \
703 ({union {UDItype __ll; \
704 struct {USItype __h, __l;} __i; \
705 } __xx; \
706 USItype __q; \
707 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
708 __asm__ ("divu.d %0,%1,%2" \
709 : "=r" (__q) \
710 : "r" (__xx.__ll), \
711 "r" ((USItype) (d))); \
712 (r) = (n0) - __q * (d); (q) = __q; })
713 #define UMUL_TIME 5
714 #define UDIV_TIME 25
715 #else
716 #define UMUL_TIME 17
717 #define UDIV_TIME 150
718 #endif /* __mc88110__ */
719 #endif /* __m88000__ */
720
721 #if defined (__mn10300__)
722 # if defined (__AM33__)
723 # define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
724 # define umul_ppmm(w1, w0, u, v) \
725 asm("mulu %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
726 # define smul_ppmm(w1, w0, u, v) \
727 asm("mul %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
728 # else
729 # define umul_ppmm(w1, w0, u, v) \
730 asm("nop; nop; mulu %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
731 # define smul_ppmm(w1, w0, u, v) \
732 asm("nop; nop; mul %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
733 # endif
734 # define add_ssaaaa(sh, sl, ah, al, bh, bl) \
735 do { \
736 DWunion __s, __a, __b; \
737 __a.s.low = (al); __a.s.high = (ah); \
738 __b.s.low = (bl); __b.s.high = (bh); \
739 __s.ll = __a.ll + __b.ll; \
740 (sl) = __s.s.low; (sh) = __s.s.high; \
741 } while (0)
742 # define sub_ddmmss(sh, sl, ah, al, bh, bl) \
743 do { \
744 DWunion __s, __a, __b; \
745 __a.s.low = (al); __a.s.high = (ah); \
746 __b.s.low = (bl); __b.s.high = (bh); \
747 __s.ll = __a.ll - __b.ll; \
748 (sl) = __s.s.low; (sh) = __s.s.high; \
749 } while (0)
750 # define udiv_qrnnd(q, r, nh, nl, d) \
751 asm("divu %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
752 # define sdiv_qrnnd(q, r, nh, nl, d) \
753 asm("div %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
754 # define UMUL_TIME 3
755 # define UDIV_TIME 38
756 #endif
757
758 #if defined (__mips__) && W_TYPE_SIZE == 32
759 #define umul_ppmm(w1, w0, u, v) \
760 do { \
761 UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
762 (w1) = (USItype) (__x >> 32); \
763 (w0) = (USItype) (__x); \
764 } while (0)
765 #define UMUL_TIME 10
766 #define UDIV_TIME 100
767
768 #if (__mips == 32 || __mips == 64) && ! __mips16
769 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
770 #define COUNT_LEADING_ZEROS_0 32
771 #endif
772 #endif /* __mips__ */
773
774 #if defined (__ns32000__) && W_TYPE_SIZE == 32
775 #define umul_ppmm(w1, w0, u, v) \
776 ({union {UDItype __ll; \
777 struct {USItype __l, __h;} __i; \
778 } __xx; \
779 __asm__ ("meid %2,%0" \
780 : "=g" (__xx.__ll) \
781 : "%0" ((USItype) (u)), \
782 "g" ((USItype) (v))); \
783 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
784 #define __umulsidi3(u, v) \
785 ({UDItype __w; \
786 __asm__ ("meid %2,%0" \
787 : "=g" (__w) \
788 : "%0" ((USItype) (u)), \
789 "g" ((USItype) (v))); \
790 __w; })
791 #define udiv_qrnnd(q, r, n1, n0, d) \
792 ({union {UDItype __ll; \
793 struct {USItype __l, __h;} __i; \
794 } __xx; \
795 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
796 __asm__ ("deid %2,%0" \
797 : "=g" (__xx.__ll) \
798 : "0" (__xx.__ll), \
799 "g" ((USItype) (d))); \
800 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
801 #define count_trailing_zeros(count,x) \
802 do { \
803 __asm__ ("ffsd %2,%0" \
804 : "=r" ((USItype) (count)) \
805 : "0" ((USItype) 0), \
806 "r" ((USItype) (x))); \
807 } while (0)
808 #endif /* __ns32000__ */
809
810 /* FIXME: We should test _IBMR2 here when we add assembly support for the
811 system vendor compilers.
812 FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
813 enough, since that hits ARM and m68k too. */
814 #if (defined (_ARCH_PPC) /* AIX */ \
815 || defined (_ARCH_PWR) /* AIX */ \
816 || defined (_ARCH_COM) /* AIX */ \
817 || defined (__powerpc__) /* gcc */ \
818 || defined (__POWERPC__) /* BEOS */ \
819 || defined (__ppc__) /* Darwin */ \
820 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
821 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
822 && CPU_FAMILY == PPC) \
823 ) && W_TYPE_SIZE == 32
824 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
825 do { \
826 if (__builtin_constant_p (bh) && (bh) == 0) \
827 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
828 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
829 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
830 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
831 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
832 else \
833 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
834 : "=r" (sh), "=&r" (sl) \
835 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
836 } while (0)
837 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
838 do { \
839 if (__builtin_constant_p (ah) && (ah) == 0) \
840 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
841 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
842 else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
843 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
844 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
845 else if (__builtin_constant_p (bh) && (bh) == 0) \
846 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
847 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
848 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
849 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
850 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
851 else \
852 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
853 : "=r" (sh), "=&r" (sl) \
854 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
855 } while (0)
856 #define count_leading_zeros(count, x) \
857 __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
858 #define COUNT_LEADING_ZEROS_0 32
859 #if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
860 || defined (__ppc__) \
861 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
862 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
863 && CPU_FAMILY == PPC)
864 #define umul_ppmm(ph, pl, m0, m1) \
865 do { \
866 USItype __m0 = (m0), __m1 = (m1); \
867 __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
868 (pl) = __m0 * __m1; \
869 } while (0)
870 #define UMUL_TIME 15
871 #define smul_ppmm(ph, pl, m0, m1) \
872 do { \
873 SItype __m0 = (m0), __m1 = (m1); \
874 __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
875 (pl) = __m0 * __m1; \
876 } while (0)
877 #define SMUL_TIME 14
878 #define UDIV_TIME 120
879 #elif defined (_ARCH_PWR)
880 #define UMUL_TIME 8
881 #define smul_ppmm(xh, xl, m0, m1) \
882 __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
883 #define SMUL_TIME 4
884 #define sdiv_qrnnd(q, r, nh, nl, d) \
885 __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
886 #define UDIV_TIME 100
887 #endif
888 #endif /* 32-bit POWER architecture variants. */
889
890 /* We should test _IBMR2 here when we add assembly support for the system
891 vendor compilers. */
892 #if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
893 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
894 do { \
895 if (__builtin_constant_p (bh) && (bh) == 0) \
896 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
897 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
898 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
899 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
900 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
901 else \
902 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
903 : "=r" (sh), "=&r" (sl) \
904 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
905 } while (0)
906 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
907 do { \
908 if (__builtin_constant_p (ah) && (ah) == 0) \
909 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
910 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
911 else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
912 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
913 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
914 else if (__builtin_constant_p (bh) && (bh) == 0) \
915 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
916 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
917 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
918 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
919 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
920 else \
921 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
922 : "=r" (sh), "=&r" (sl) \
923 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
924 } while (0)
925 #define count_leading_zeros(count, x) \
926 __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
927 #define COUNT_LEADING_ZEROS_0 64
928 #define umul_ppmm(ph, pl, m0, m1) \
929 do { \
930 UDItype __m0 = (m0), __m1 = (m1); \
931 __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
932 (pl) = __m0 * __m1; \
933 } while (0)
934 #define UMUL_TIME 15
935 #define smul_ppmm(ph, pl, m0, m1) \
936 do { \
937 DItype __m0 = (m0), __m1 = (m1); \
938 __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
939 (pl) = __m0 * __m1; \
940 } while (0)
941 #define SMUL_TIME 14 /* ??? */
942 #define UDIV_TIME 120 /* ??? */
943 #endif /* 64-bit PowerPC. */
944
945 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
946 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
947 __asm__ ("a %1,%5\n\tae %0,%3" \
948 : "=r" ((USItype) (sh)), \
949 "=&r" ((USItype) (sl)) \
950 : "%0" ((USItype) (ah)), \
951 "r" ((USItype) (bh)), \
952 "%1" ((USItype) (al)), \
953 "r" ((USItype) (bl)))
954 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
955 __asm__ ("s %1,%5\n\tse %0,%3" \
956 : "=r" ((USItype) (sh)), \
957 "=&r" ((USItype) (sl)) \
958 : "0" ((USItype) (ah)), \
959 "r" ((USItype) (bh)), \
960 "1" ((USItype) (al)), \
961 "r" ((USItype) (bl)))
962 #define umul_ppmm(ph, pl, m0, m1) \
963 do { \
964 USItype __m0 = (m0), __m1 = (m1); \
965 __asm__ ( \
966 "s r2,r2\n" \
967 " mts r10,%2\n" \
968 " m r2,%3\n" \
969 " m r2,%3\n" \
970 " m r2,%3\n" \
971 " m r2,%3\n" \
972 " m r2,%3\n" \
973 " m r2,%3\n" \
974 " m r2,%3\n" \
975 " m r2,%3\n" \
976 " m r2,%3\n" \
977 " m r2,%3\n" \
978 " m r2,%3\n" \
979 " m r2,%3\n" \
980 " m r2,%3\n" \
981 " m r2,%3\n" \
982 " m r2,%3\n" \
983 " m r2,%3\n" \
984 " cas %0,r2,r0\n" \
985 " mfs r10,%1" \
986 : "=r" ((USItype) (ph)), \
987 "=r" ((USItype) (pl)) \
988 : "%r" (__m0), \
989 "r" (__m1) \
990 : "r2"); \
991 (ph) += ((((SItype) __m0 >> 31) & __m1) \
992 + (((SItype) __m1 >> 31) & __m0)); \
993 } while (0)
994 #define UMUL_TIME 20
995 #define UDIV_TIME 200
996 #define count_leading_zeros(count, x) \
997 do { \
998 if ((x) >= 0x10000) \
999 __asm__ ("clz %0,%1" \
1000 : "=r" ((USItype) (count)) \
1001 : "r" ((USItype) (x) >> 16)); \
1002 else \
1003 { \
1004 __asm__ ("clz %0,%1" \
1005 : "=r" ((USItype) (count)) \
1006 : "r" ((USItype) (x))); \
1007 (count) += 16; \
1008 } \
1009 } while (0)
1010 #endif
1011
1012 #if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
1013 #ifndef __sh1__
1014 #define umul_ppmm(w1, w0, u, v) \
1015 __asm__ ( \
1016 "dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
1017 : "=r<" ((USItype)(w1)), \
1018 "=r<" ((USItype)(w0)) \
1019 : "r" ((USItype)(u)), \
1020 "r" ((USItype)(v)) \
1021 : "macl", "mach")
1022 #define UMUL_TIME 5
1023 #endif
1024
1025 /* This is the same algorithm as __udiv_qrnnd_c. */
1026 #define UDIV_NEEDS_NORMALIZATION 1
1027
1028 #define udiv_qrnnd(q, r, n1, n0, d) \
1029 do { \
1030 extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
1031 __attribute__ ((visibility ("hidden"))); \
1032 /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
1033 __asm__ ( \
1034 "mov%M4 %4,r5\n" \
1035 " swap.w %3,r4\n" \
1036 " swap.w r5,r6\n" \
1037 " jsr @%5\n" \
1038 " shll16 r6\n" \
1039 " swap.w r4,r4\n" \
1040 " jsr @%5\n" \
1041 " swap.w r1,%0\n" \
1042 " or r1,%0" \
1043 : "=r" (q), "=&z" (r) \
1044 : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
1045 : "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
1046 } while (0)
1047
1048 #define UDIV_TIME 80
1049
1050 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1051 __asm__ ("clrt;subc %5,%1; subc %4,%0" \
1052 : "=r" (sh), "=r" (sl) \
1053 : "0" (ah), "1" (al), "r" (bh), "r" (bl) : "t")
1054
1055 #endif /* __sh__ */
1056
1057 #if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
1058 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1059 #define count_leading_zeros(count, x) \
1060 do \
1061 { \
1062 UDItype x_ = (USItype)(x); \
1063 SItype c_; \
1064 \
1065 __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \
1066 (count) = c_ - 31; \
1067 } \
1068 while (0)
1069 #define COUNT_LEADING_ZEROS_0 32
1070 #endif
1071
1072 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
1073 && W_TYPE_SIZE == 32
1074 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1075 __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
1076 : "=r" ((USItype) (sh)), \
1077 "=&r" ((USItype) (sl)) \
1078 : "%rJ" ((USItype) (ah)), \
1079 "rI" ((USItype) (bh)), \
1080 "%rJ" ((USItype) (al)), \
1081 "rI" ((USItype) (bl)) \
1082 __CLOBBER_CC)
1083 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1084 __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
1085 : "=r" ((USItype) (sh)), \
1086 "=&r" ((USItype) (sl)) \
1087 : "rJ" ((USItype) (ah)), \
1088 "rI" ((USItype) (bh)), \
1089 "rJ" ((USItype) (al)), \
1090 "rI" ((USItype) (bl)) \
1091 __CLOBBER_CC)
1092 #if defined (__sparc_v8__)
1093 #define umul_ppmm(w1, w0, u, v) \
1094 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1095 : "=r" ((USItype) (w1)), \
1096 "=r" ((USItype) (w0)) \
1097 : "r" ((USItype) (u)), \
1098 "r" ((USItype) (v)))
1099 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1100 __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
1101 : "=&r" ((USItype) (__q)), \
1102 "=&r" ((USItype) (__r)) \
1103 : "r" ((USItype) (__n1)), \
1104 "r" ((USItype) (__n0)), \
1105 "r" ((USItype) (__d)))
1106 #else
1107 #if defined (__sparclite__)
1108 /* This has hardware multiply but not divide. It also has two additional
1109 instructions scan (ffs from high bit) and divscc. */
1110 #define umul_ppmm(w1, w0, u, v) \
1111 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1112 : "=r" ((USItype) (w1)), \
1113 "=r" ((USItype) (w0)) \
1114 : "r" ((USItype) (u)), \
1115 "r" ((USItype) (v)))
1116 #define udiv_qrnnd(q, r, n1, n0, d) \
1117 __asm__ ("! Inlined udiv_qrnnd\n" \
1118 " wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1119 " tst %%g0\n" \
1120 " divscc %3,%4,%%g1\n" \
1121 " divscc %%g1,%4,%%g1\n" \
1122 " divscc %%g1,%4,%%g1\n" \
1123 " divscc %%g1,%4,%%g1\n" \
1124 " divscc %%g1,%4,%%g1\n" \
1125 " divscc %%g1,%4,%%g1\n" \
1126 " divscc %%g1,%4,%%g1\n" \
1127 " divscc %%g1,%4,%%g1\n" \
1128 " divscc %%g1,%4,%%g1\n" \
1129 " divscc %%g1,%4,%%g1\n" \
1130 " divscc %%g1,%4,%%g1\n" \
1131 " divscc %%g1,%4,%%g1\n" \
1132 " divscc %%g1,%4,%%g1\n" \
1133 " divscc %%g1,%4,%%g1\n" \
1134 " divscc %%g1,%4,%%g1\n" \
1135 " divscc %%g1,%4,%%g1\n" \
1136 " divscc %%g1,%4,%%g1\n" \
1137 " divscc %%g1,%4,%%g1\n" \
1138 " divscc %%g1,%4,%%g1\n" \
1139 " divscc %%g1,%4,%%g1\n" \
1140 " divscc %%g1,%4,%%g1\n" \
1141 " divscc %%g1,%4,%%g1\n" \
1142 " divscc %%g1,%4,%%g1\n" \
1143 " divscc %%g1,%4,%%g1\n" \
1144 " divscc %%g1,%4,%%g1\n" \
1145 " divscc %%g1,%4,%%g1\n" \
1146 " divscc %%g1,%4,%%g1\n" \
1147 " divscc %%g1,%4,%%g1\n" \
1148 " divscc %%g1,%4,%%g1\n" \
1149 " divscc %%g1,%4,%%g1\n" \
1150 " divscc %%g1,%4,%%g1\n" \
1151 " divscc %%g1,%4,%0\n" \
1152 " rd %%y,%1\n" \
1153 " bl,a 1f\n" \
1154 " add %1,%4,%1\n" \
1155 "1: ! End of inline udiv_qrnnd" \
1156 : "=r" ((USItype) (q)), \
1157 "=r" ((USItype) (r)) \
1158 : "r" ((USItype) (n1)), \
1159 "r" ((USItype) (n0)), \
1160 "rI" ((USItype) (d)) \
1161 : "g1" __AND_CLOBBER_CC)
1162 #define UDIV_TIME 37
1163 #define count_leading_zeros(count, x) \
1164 do { \
1165 __asm__ ("scan %1,1,%0" \
1166 : "=r" ((USItype) (count)) \
1167 : "r" ((USItype) (x))); \
1168 } while (0)
1169 /* Early sparclites return 63 for an argument of 0, but they warn that future
1170 implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
1171 undefined. */
1172 #else
1173 /* SPARC without integer multiplication and divide instructions.
1174 (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
1175 #define umul_ppmm(w1, w0, u, v) \
1176 __asm__ ("! Inlined umul_ppmm\n" \
1177 " wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
1178 " sra %3,31,%%o5 ! Don't move this insn\n" \
1179 " and %2,%%o5,%%o5 ! Don't move this insn\n" \
1180 " andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1181 " mulscc %%g1,%3,%%g1\n" \
1182 " mulscc %%g1,%3,%%g1\n" \
1183 " mulscc %%g1,%3,%%g1\n" \
1184 " mulscc %%g1,%3,%%g1\n" \
1185 " mulscc %%g1,%3,%%g1\n" \
1186 " mulscc %%g1,%3,%%g1\n" \
1187 " mulscc %%g1,%3,%%g1\n" \
1188 " mulscc %%g1,%3,%%g1\n" \
1189 " mulscc %%g1,%3,%%g1\n" \
1190 " mulscc %%g1,%3,%%g1\n" \
1191 " mulscc %%g1,%3,%%g1\n" \
1192 " mulscc %%g1,%3,%%g1\n" \
1193 " mulscc %%g1,%3,%%g1\n" \
1194 " mulscc %%g1,%3,%%g1\n" \
1195 " mulscc %%g1,%3,%%g1\n" \
1196 " mulscc %%g1,%3,%%g1\n" \
1197 " mulscc %%g1,%3,%%g1\n" \
1198 " mulscc %%g1,%3,%%g1\n" \
1199 " mulscc %%g1,%3,%%g1\n" \
1200 " mulscc %%g1,%3,%%g1\n" \
1201 " mulscc %%g1,%3,%%g1\n" \
1202 " mulscc %%g1,%3,%%g1\n" \
1203 " mulscc %%g1,%3,%%g1\n" \
1204 " mulscc %%g1,%3,%%g1\n" \
1205 " mulscc %%g1,%3,%%g1\n" \
1206 " mulscc %%g1,%3,%%g1\n" \
1207 " mulscc %%g1,%3,%%g1\n" \
1208 " mulscc %%g1,%3,%%g1\n" \
1209 " mulscc %%g1,%3,%%g1\n" \
1210 " mulscc %%g1,%3,%%g1\n" \
1211 " mulscc %%g1,%3,%%g1\n" \
1212 " mulscc %%g1,%3,%%g1\n" \
1213 " mulscc %%g1,0,%%g1\n" \
1214 " add %%g1,%%o5,%0\n" \
1215 " rd %%y,%1" \
1216 : "=r" ((USItype) (w1)), \
1217 "=r" ((USItype) (w0)) \
1218 : "%rI" ((USItype) (u)), \
1219 "r" ((USItype) (v)) \
1220 : "g1", "o5" __AND_CLOBBER_CC)
1221 #define UMUL_TIME 39 /* 39 instructions */
1222 /* It's quite necessary to add this much assembler for the sparc.
1223 The default udiv_qrnnd (in C) is more than 10 times slower! */
1224 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1225 __asm__ ("! Inlined udiv_qrnnd\n" \
1226 " mov 32,%%g1\n" \
1227 " subcc %1,%2,%%g0\n" \
1228 "1: bcs 5f\n" \
1229 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1230 " sub %1,%2,%1 ! this kills msb of n\n" \
1231 " addx %1,%1,%1 ! so this can't give carry\n" \
1232 " subcc %%g1,1,%%g1\n" \
1233 "2: bne 1b\n" \
1234 " subcc %1,%2,%%g0\n" \
1235 " bcs 3f\n" \
1236 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1237 " b 3f\n" \
1238 " sub %1,%2,%1 ! this kills msb of n\n" \
1239 "4: sub %1,%2,%1\n" \
1240 "5: addxcc %1,%1,%1\n" \
1241 " bcc 2b\n" \
1242 " subcc %%g1,1,%%g1\n" \
1243 "! Got carry from n. Subtract next step to cancel this carry.\n" \
1244 " bne 4b\n" \
1245 " addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
1246 " sub %1,%2,%1\n" \
1247 "3: xnor %0,0,%0\n" \
1248 " ! End of inline udiv_qrnnd" \
1249 : "=&r" ((USItype) (__q)), \
1250 "=&r" ((USItype) (__r)) \
1251 : "r" ((USItype) (__d)), \
1252 "1" ((USItype) (__n1)), \
1253 "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1254 #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1255 #endif /* __sparclite__ */
1256 #endif /* __sparc_v8__ */
1257 #endif /* sparc32 */
1258
1259 #if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
1260 && W_TYPE_SIZE == 64
1261 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1262 __asm__ ("addcc %r4,%5,%1\n\t" \
1263 "add %r2,%3,%0\n\t" \
1264 "bcs,a,pn %%xcc, 1f\n\t" \
1265 "add %0, 1, %0\n" \
1266 "1:" \
1267 : "=r" ((UDItype)(sh)), \
1268 "=&r" ((UDItype)(sl)) \
1269 : "%rJ" ((UDItype)(ah)), \
1270 "rI" ((UDItype)(bh)), \
1271 "%rJ" ((UDItype)(al)), \
1272 "rI" ((UDItype)(bl)) \
1273 __CLOBBER_CC)
1274
1275 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1276 __asm__ ("subcc %r4,%5,%1\n\t" \
1277 "sub %r2,%3,%0\n\t" \
1278 "bcs,a,pn %%xcc, 1f\n\t" \
1279 "sub %0, 1, %0\n\t" \
1280 "1:" \
1281 : "=r" ((UDItype)(sh)), \
1282 "=&r" ((UDItype)(sl)) \
1283 : "rJ" ((UDItype)(ah)), \
1284 "rI" ((UDItype)(bh)), \
1285 "rJ" ((UDItype)(al)), \
1286 "rI" ((UDItype)(bl)) \
1287 __CLOBBER_CC)
1288
1289 #define umul_ppmm(wh, wl, u, v) \
1290 do { \
1291 UDItype tmp1, tmp2, tmp3, tmp4; \
1292 __asm__ __volatile__ ( \
1293 "srl %7,0,%3\n\t" \
1294 "mulx %3,%6,%1\n\t" \
1295 "srlx %6,32,%2\n\t" \
1296 "mulx %2,%3,%4\n\t" \
1297 "sllx %4,32,%5\n\t" \
1298 "srl %6,0,%3\n\t" \
1299 "sub %1,%5,%5\n\t" \
1300 "srlx %5,32,%5\n\t" \
1301 "addcc %4,%5,%4\n\t" \
1302 "srlx %7,32,%5\n\t" \
1303 "mulx %3,%5,%3\n\t" \
1304 "mulx %2,%5,%5\n\t" \
1305 "sethi %%hi(0x80000000),%2\n\t" \
1306 "addcc %4,%3,%4\n\t" \
1307 "srlx %4,32,%4\n\t" \
1308 "add %2,%2,%2\n\t" \
1309 "movcc %%xcc,%%g0,%2\n\t" \
1310 "addcc %5,%4,%5\n\t" \
1311 "sllx %3,32,%3\n\t" \
1312 "add %1,%3,%1\n\t" \
1313 "add %5,%2,%0" \
1314 : "=r" ((UDItype)(wh)), \
1315 "=&r" ((UDItype)(wl)), \
1316 "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
1317 : "r" ((UDItype)(u)), \
1318 "r" ((UDItype)(v)) \
1319 __CLOBBER_CC); \
1320 } while (0)
1321 #define UMUL_TIME 96
1322 #define UDIV_TIME 230
1323 #endif /* sparc64 */
1324
1325 #if defined (__vax__) && W_TYPE_SIZE == 32
1326 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1327 __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
1328 : "=g" ((USItype) (sh)), \
1329 "=&g" ((USItype) (sl)) \
1330 : "%0" ((USItype) (ah)), \
1331 "g" ((USItype) (bh)), \
1332 "%1" ((USItype) (al)), \
1333 "g" ((USItype) (bl)))
1334 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1335 __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
1336 : "=g" ((USItype) (sh)), \
1337 "=&g" ((USItype) (sl)) \
1338 : "0" ((USItype) (ah)), \
1339 "g" ((USItype) (bh)), \
1340 "1" ((USItype) (al)), \
1341 "g" ((USItype) (bl)))
1342 #define umul_ppmm(xh, xl, m0, m1) \
1343 do { \
1344 union { \
1345 UDItype __ll; \
1346 struct {USItype __l, __h;} __i; \
1347 } __xx; \
1348 USItype __m0 = (m0), __m1 = (m1); \
1349 __asm__ ("emul %1,%2,$0,%0" \
1350 : "=r" (__xx.__ll) \
1351 : "g" (__m0), \
1352 "g" (__m1)); \
1353 (xh) = __xx.__i.__h; \
1354 (xl) = __xx.__i.__l; \
1355 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1356 + (((SItype) __m1 >> 31) & __m0)); \
1357 } while (0)
1358 #define sdiv_qrnnd(q, r, n1, n0, d) \
1359 do { \
1360 union {DItype __ll; \
1361 struct {SItype __l, __h;} __i; \
1362 } __xx; \
1363 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1364 __asm__ ("ediv %3,%2,%0,%1" \
1365 : "=g" (q), "=g" (r) \
1366 : "g" (__xx.__ll), "g" (d)); \
1367 } while (0)
1368 #endif /* __vax__ */
1369
1370 #if defined (__xtensa__) && W_TYPE_SIZE == 32
1371 /* This code is not Xtensa-configuration-specific, so rely on the compiler
1372 to expand builtin functions depending on what configuration features
1373 are available. This avoids library calls when the operation can be
1374 performed in-line. */
1375 #define umul_ppmm(w1, w0, u, v) \
1376 do { \
1377 DWunion __w; \
1378 __w.ll = __builtin_umulsidi3 (u, v); \
1379 w1 = __w.s.high; \
1380 w0 = __w.s.low; \
1381 } while (0)
1382 #define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
1383 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
1384 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
1385 #endif /* __xtensa__ */
1386
1387 #if defined xstormy16
1388 extern UHItype __stormy16_count_leading_zeros (UHItype);
1389 #define count_leading_zeros(count, x) \
1390 do \
1391 { \
1392 UHItype size; \
1393 \
1394 /* We assume that W_TYPE_SIZE is a multiple of 16... */ \
1395 for ((count) = 0, size = W_TYPE_SIZE; size; size -= 16) \
1396 { \
1397 UHItype c; \
1398 \
1399 c = __clzhi2 ((x) >> (size - 16)); \
1400 (count) += c; \
1401 if (c != 16) \
1402 break; \
1403 } \
1404 } \
1405 while (0)
1406 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1407 #endif
1408
1409 #if defined (__z8000__) && W_TYPE_SIZE == 16
1410 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1411 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1412 : "=r" ((unsigned int)(sh)), \
1413 "=&r" ((unsigned int)(sl)) \
1414 : "%0" ((unsigned int)(ah)), \
1415 "r" ((unsigned int)(bh)), \
1416 "%1" ((unsigned int)(al)), \
1417 "rQR" ((unsigned int)(bl)))
1418 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1419 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1420 : "=r" ((unsigned int)(sh)), \
1421 "=&r" ((unsigned int)(sl)) \
1422 : "0" ((unsigned int)(ah)), \
1423 "r" ((unsigned int)(bh)), \
1424 "1" ((unsigned int)(al)), \
1425 "rQR" ((unsigned int)(bl)))
1426 #define umul_ppmm(xh, xl, m0, m1) \
1427 do { \
1428 union {long int __ll; \
1429 struct {unsigned int __h, __l;} __i; \
1430 } __xx; \
1431 unsigned int __m0 = (m0), __m1 = (m1); \
1432 __asm__ ("mult %S0,%H3" \
1433 : "=r" (__xx.__i.__h), \
1434 "=r" (__xx.__i.__l) \
1435 : "%1" (__m0), \
1436 "rQR" (__m1)); \
1437 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1438 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1439 + (((signed int) __m1 >> 15) & __m0)); \
1440 } while (0)
1441 #endif /* __z8000__ */
1442
1443 #endif /* __GNUC__ */
1444
1445 /* If this machine has no inline assembler, use C macros. */
1446
1447 #if !defined (add_ssaaaa)
1448 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1449 do { \
1450 UWtype __x; \
1451 __x = (al) + (bl); \
1452 (sh) = (ah) + (bh) + (__x < (al)); \
1453 (sl) = __x; \
1454 } while (0)
1455 #endif
1456
1457 #if !defined (sub_ddmmss)
1458 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1459 do { \
1460 UWtype __x; \
1461 __x = (al) - (bl); \
1462 (sh) = (ah) - (bh) - (__x > (al)); \
1463 (sl) = __x; \
1464 } while (0)
1465 #endif
1466
1467 /* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1468 smul_ppmm. */
1469 #if !defined (umul_ppmm) && defined (smul_ppmm)
1470 #define umul_ppmm(w1, w0, u, v) \
1471 do { \
1472 UWtype __w1; \
1473 UWtype __xm0 = (u), __xm1 = (v); \
1474 smul_ppmm (__w1, w0, __xm0, __xm1); \
1475 (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
1476 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
1477 } while (0)
1478 #endif
1479
1480 /* If we still don't have umul_ppmm, define it using plain C. */
1481 #if !defined (umul_ppmm)
1482 #define umul_ppmm(w1, w0, u, v) \
1483 do { \
1484 UWtype __x0, __x1, __x2, __x3; \
1485 UHWtype __ul, __vl, __uh, __vh; \
1486 \
1487 __ul = __ll_lowpart (u); \
1488 __uh = __ll_highpart (u); \
1489 __vl = __ll_lowpart (v); \
1490 __vh = __ll_highpart (v); \
1491 \
1492 __x0 = (UWtype) __ul * __vl; \
1493 __x1 = (UWtype) __ul * __vh; \
1494 __x2 = (UWtype) __uh * __vl; \
1495 __x3 = (UWtype) __uh * __vh; \
1496 \
1497 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
1498 __x1 += __x2; /* but this indeed can */ \
1499 if (__x1 < __x2) /* did we get it? */ \
1500 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1501 \
1502 (w1) = __x3 + __ll_highpart (__x1); \
1503 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
1504 } while (0)
1505 #endif
1506
1507 #if !defined (__umulsidi3)
1508 #define __umulsidi3(u, v) \
1509 ({DWunion __w; \
1510 umul_ppmm (__w.s.high, __w.s.low, u, v); \
1511 __w.ll; })
1512 #endif
1513
1514 /* Define this unconditionally, so it can be used for debugging. */
1515 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1516 do { \
1517 UWtype __d1, __d0, __q1, __q0; \
1518 UWtype __r1, __r0, __m; \
1519 __d1 = __ll_highpart (d); \
1520 __d0 = __ll_lowpart (d); \
1521 \
1522 __r1 = (n1) % __d1; \
1523 __q1 = (n1) / __d1; \
1524 __m = (UWtype) __q1 * __d0; \
1525 __r1 = __r1 * __ll_B | __ll_highpart (n0); \
1526 if (__r1 < __m) \
1527 { \
1528 __q1--, __r1 += (d); \
1529 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1530 if (__r1 < __m) \
1531 __q1--, __r1 += (d); \
1532 } \
1533 __r1 -= __m; \
1534 \
1535 __r0 = __r1 % __d1; \
1536 __q0 = __r1 / __d1; \
1537 __m = (UWtype) __q0 * __d0; \
1538 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
1539 if (__r0 < __m) \
1540 { \
1541 __q0--, __r0 += (d); \
1542 if (__r0 >= (d)) \
1543 if (__r0 < __m) \
1544 __q0--, __r0 += (d); \
1545 } \
1546 __r0 -= __m; \
1547 \
1548 (q) = (UWtype) __q1 * __ll_B | __q0; \
1549 (r) = __r0; \
1550 } while (0)
1551
1552 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1553 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1554 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1555 #define udiv_qrnnd(q, r, nh, nl, d) \
1556 do { \
1557 USItype __r; \
1558 (q) = __udiv_w_sdiv (&__r, nh, nl, d); \
1559 (r) = __r; \
1560 } while (0)
1561 #endif
1562
1563 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1564 #if !defined (udiv_qrnnd)
1565 #define UDIV_NEEDS_NORMALIZATION 1
1566 #define udiv_qrnnd __udiv_qrnnd_c
1567 #endif
1568
1569 #if !defined (count_leading_zeros)
1570 #define count_leading_zeros(count, x) \
1571 do { \
1572 UWtype __xr = (x); \
1573 UWtype __a; \
1574 \
1575 if (W_TYPE_SIZE <= 32) \
1576 { \
1577 __a = __xr < ((UWtype)1<<2*__BITS4) \
1578 ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
1579 : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
1580 } \
1581 else \
1582 { \
1583 for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
1584 if (((__xr >> __a) & 0xff) != 0) \
1585 break; \
1586 } \
1587 \
1588 (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
1589 } while (0)
1590 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1591 #endif
1592
1593 #if !defined (count_trailing_zeros)
1594 /* Define count_trailing_zeros using count_leading_zeros. The latter might be
1595 defined in asm, but if it is not, the C version above is good enough. */
1596 #define count_trailing_zeros(count, x) \
1597 do { \
1598 UWtype __ctz_x = (x); \
1599 UWtype __ctz_c; \
1600 count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
1601 (count) = W_TYPE_SIZE - 1 - __ctz_c; \
1602 } while (0)
1603 #endif
1604
1605 #ifndef UDIV_NEEDS_NORMALIZATION
1606 #define UDIV_NEEDS_NORMALIZATION 0
1607 #endif
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