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1 | /* longlong.h -- definitions for mixed size 32/64 bit arithmetic. | |
2 | Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc. | |
3 | ||
4 | This definition file is free software; you can redistribute it | |
5 | and/or modify it under the terms of the GNU General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2, or (at your option) any later version. | |
8 | ||
9 | This definition file is distributed in the hope that it will be | |
10 | useful, but WITHOUT ANY WARRANTY; without even the implied | |
11 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
12 | See the GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
17 | ||
18 | #ifndef SI_TYPE_SIZE | |
19 | #define SI_TYPE_SIZE 32 | |
20 | #endif | |
21 | ||
22 | #define __BITS4 (SI_TYPE_SIZE / 4) | |
23 | #define __ll_B (1L << (SI_TYPE_SIZE / 2)) | |
24 | #define __ll_lowpart(t) ((USItype) (t) % __ll_B) | |
25 | #define __ll_highpart(t) ((USItype) (t) / __ll_B) | |
26 | ||
27 | /* Define auxiliary asm macros. | |
28 | ||
29 | 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) | |
30 | multiplies two USItype integers MULTIPLER and MULTIPLICAND, | |
31 | and generates a two-part USItype product in HIGH_PROD and | |
32 | LOW_PROD. | |
33 | ||
34 | 2) __umulsidi3(a,b) multiplies two USItype integers A and B, | |
35 | and returns a UDItype product. This is just a variant of umul_ppmm. | |
36 | ||
37 | 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, | |
38 | denominator) divides a two-word unsigned integer, composed by the | |
39 | integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and | |
40 | places the quotient in QUOTIENT and the remainder in REMAINDER. | |
41 | HIGH_NUMERATOR must be less than DENOMINATOR for correct operation. | |
42 | If, in addition, the most significant bit of DENOMINATOR must be 1, | |
43 | then the pre-processor symbol UDIV_NEEDS_NORMALIZATION is defined to 1. | |
44 | ||
45 | 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, | |
46 | denominator). Like udiv_qrnnd but the numbers are signed. The | |
47 | quotient is rounded towards 0. | |
48 | ||
49 | 5) count_leading_zeros(count, x) counts the number of zero-bits from | |
50 | the msb to the first non-zero bit. This is the number of steps X | |
51 | needs to be shifted left to set the msb. Undefined for X == 0. | |
52 | ||
53 | 6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, | |
54 | high_addend_2, low_addend_2) adds two two-word unsigned integers, | |
55 | composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and | |
56 | LOW_ADDEND_2 respectively. The result is placed in HIGH_SUM and | |
57 | LOW_SUM. Overflow (i.e. carry out) is not stored anywhere, and is | |
58 | lost. | |
59 | ||
60 | 7) sub_ddmmss(high_difference, low_difference, high_minuend, | |
61 | low_minuend, high_subtrahend, low_subtrahend) subtracts two | |
62 | two-word unsigned integers, composed by HIGH_MINUEND_1 and | |
63 | LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2 | |
64 | respectively. The result is placed in HIGH_DIFFERENCE and | |
65 | LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, | |
66 | and is lost. | |
67 | ||
68 | If any of these macros are left undefined for a particular CPU, | |
69 | C macros are used. */ | |
70 | ||
71 | /* The CPUs come in alphabetical order below. | |
72 | ||
73 | Please add support for more CPUs here, or improve the current support | |
74 | for the CPUs below! | |
75 | (E.g. WE32100, IBM360.) */ | |
76 | ||
77 | #if defined (__GNUC__) && !defined (NO_ASM) | |
78 | ||
79 | /* We sometimes need to clobber "cc" with gcc2, but that would not be | |
80 | understood by gcc1. Use cpp to avoid major code duplication. */ | |
81 | #if __GNUC__ < 2 | |
82 | #define __CLOBBER_CC | |
83 | #define __AND_CLOBBER_CC | |
84 | #else /* __GNUC__ >= 2 */ | |
85 | #define __CLOBBER_CC : "cc" | |
86 | #define __AND_CLOBBER_CC , "cc" | |
87 | #endif /* __GNUC__ < 2 */ | |
88 | ||
89 | #if defined (__a29k__) || defined (_AM29K) | |
90 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
91 | __asm__ ("add %1,%4,%5 | |
92 | addc %0,%2,%3" \ | |
93 | : "=r" ((USItype)(sh)), \ | |
94 | "=&r" ((USItype)(sl)) \ | |
95 | : "%r" ((USItype)(ah)), \ | |
96 | "rI" ((USItype)(bh)), \ | |
97 | "%r" ((USItype)(al)), \ | |
98 | "rI" ((USItype)(bl))) | |
99 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
100 | __asm__ ("sub %1,%4,%5 | |
101 | subc %0,%2,%3" \ | |
102 | : "=r" ((USItype)(sh)), \ | |
103 | "=&r" ((USItype)(sl)) \ | |
104 | : "r" ((USItype)(ah)), \ | |
105 | "rI" ((USItype)(bh)), \ | |
106 | "r" ((USItype)(al)), \ | |
107 | "rI" ((USItype)(bl))) | |
108 | #define umul_ppmm(xh, xl, m0, m1) \ | |
109 | do { \ | |
110 | USItype __m0 = (m0), __m1 = (m1); \ | |
111 | __asm__ ("multiplu %0,%1,%2" \ | |
112 | : "=r" ((USItype)(xl)) \ | |
113 | : "r" (__m0), \ | |
114 | "r" (__m1)); \ | |
115 | __asm__ ("multmu %0,%1,%2" \ | |
116 | : "=r" ((USItype)(xh)) \ | |
117 | : "r" (__m0), \ | |
118 | "r" (__m1)); \ | |
119 | } while (0) | |
120 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
121 | __asm__ ("dividu %0,%3,%4" \ | |
122 | : "=r" ((USItype)(q)), \ | |
123 | "=q" ((USItype)(r)) \ | |
124 | : "1" ((USItype)(n1)), \ | |
125 | "r" ((USItype)(n0)), \ | |
126 | "r" ((USItype)(d))) | |
127 | #define count_leading_zeros(count, x) \ | |
128 | __asm__ ("clz %0,%1" \ | |
129 | : "=r" ((USItype)(count)) \ | |
130 | : "r" ((USItype)(x))) | |
131 | #endif /* __a29k__ */ | |
132 | ||
133 | #if defined (__arm__) | |
134 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
135 | __asm__ ("adds %1, %4, %5 | |
136 | adc %0, %2, %3" \ | |
137 | : "=r" ((USItype)(sh)), \ | |
138 | "=&r" ((USItype)(sl)) \ | |
139 | : "%r" ((USItype)(ah)), \ | |
140 | "rI" ((USItype)(bh)), \ | |
141 | "%r" ((USItype)(al)), \ | |
142 | "rI" ((USItype)(bl))) | |
143 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
144 | __asm__ ("subs %1, %4, %5 | |
145 | sbc %0, %2, %3" \ | |
146 | : "=r" ((USItype)(sh)), \ | |
147 | "=&r" ((USItype)(sl)) \ | |
148 | : "r" ((USItype)(ah)), \ | |
149 | "rI" ((USItype)(bh)), \ | |
150 | "r" ((USItype)(al)), \ | |
151 | "rI" ((USItype)(bl))) | |
152 | #define umul_ppmm(xh, xl, a, b) \ | |
153 | {register USItype __t0, __t1, __t2; \ | |
154 | __asm__ ("%@ Inlined umul_ppmm | |
155 | mov %2, %5, lsr #16 | |
156 | mov %0, %6, lsr #16 | |
157 | bic %3, %5, %2, lsl #16 | |
158 | bic %4, %6, %0, lsl #16 | |
159 | mul %1, %3, %4 | |
160 | mul %4, %2, %4 | |
161 | mul %3, %0, %3 | |
162 | mul %0, %2, %0 | |
163 | adds %3, %4, %3 | |
164 | addcs %0, %0, #65536 | |
165 | adds %1, %1, %3, lsl #16 | |
166 | adc %0, %0, %3, lsr #16" \ | |
167 | : "=&r" ((USItype)(xh)), \ | |
168 | "=r" ((USItype)(xl)), \ | |
169 | "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ | |
170 | : "r" ((USItype)(a)), \ | |
171 | "r" ((USItype)(b)));} | |
172 | #define UMUL_TIME 20 | |
173 | #define UDIV_TIME 100 | |
174 | #endif /* __arm__ */ | |
175 | ||
176 | #if defined (__clipper__) | |
177 | #define umul_ppmm(w1, w0, u, v) \ | |
178 | ({union {UDItype __ll; \ | |
179 | struct {USItype __l, __h;} __i; \ | |
180 | } __xx; \ | |
181 | __asm__ ("mulwux %2,%0" \ | |
182 | : "=r" (__xx.__ll) \ | |
183 | : "%0" ((USItype)(u)), \ | |
184 | "r" ((USItype)(v))); \ | |
185 | (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) | |
186 | #define smul_ppmm(w1, w0, u, v) \ | |
187 | ({union {DItype __ll; \ | |
188 | struct {SItype __l, __h;} __i; \ | |
189 | } __xx; \ | |
190 | __asm__ ("mulwx %2,%0" \ | |
191 | : "=r" (__xx.__ll) \ | |
192 | : "%0" ((SItype)(u)), \ | |
193 | "r" ((SItype)(v))); \ | |
194 | (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) | |
195 | #define __umulsidi3(u, v) \ | |
196 | ({UDItype __w; \ | |
197 | __asm__ ("mulwux %2,%0" \ | |
198 | : "=r" (__w) \ | |
199 | : "%0" ((USItype)(u)), \ | |
200 | "r" ((USItype)(v))); \ | |
201 | __w; }) | |
202 | #endif /* __clipper__ */ | |
203 | ||
204 | #if defined (__gmicro__) | |
205 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
206 | __asm__ ("add.w %5,%1 | |
207 | addx %3,%0" \ | |
208 | : "=g" ((USItype)(sh)), \ | |
209 | "=&g" ((USItype)(sl)) \ | |
210 | : "%0" ((USItype)(ah)), \ | |
211 | "g" ((USItype)(bh)), \ | |
212 | "%1" ((USItype)(al)), \ | |
213 | "g" ((USItype)(bl))) | |
214 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
215 | __asm__ ("sub.w %5,%1 | |
216 | subx %3,%0" \ | |
217 | : "=g" ((USItype)(sh)), \ | |
218 | "=&g" ((USItype)(sl)) \ | |
219 | : "0" ((USItype)(ah)), \ | |
220 | "g" ((USItype)(bh)), \ | |
221 | "1" ((USItype)(al)), \ | |
222 | "g" ((USItype)(bl))) | |
223 | #define umul_ppmm(ph, pl, m0, m1) \ | |
224 | __asm__ ("mulx %3,%0,%1" \ | |
225 | : "=g" ((USItype)(ph)), \ | |
226 | "=r" ((USItype)(pl)) \ | |
227 | : "%0" ((USItype)(m0)), \ | |
228 | "g" ((USItype)(m1))) | |
229 | #define udiv_qrnnd(q, r, nh, nl, d) \ | |
230 | __asm__ ("divx %4,%0,%1" \ | |
231 | : "=g" ((USItype)(q)), \ | |
232 | "=r" ((USItype)(r)) \ | |
233 | : "1" ((USItype)(nh)), \ | |
234 | "0" ((USItype)(nl)), \ | |
235 | "g" ((USItype)(d))) | |
236 | #define count_leading_zeros(count, x) \ | |
237 | __asm__ ("bsch/1 %1,%0" \ | |
238 | : "=g" (count) \ | |
239 | : "g" ((USItype)(x)), \ | |
240 | "0" ((USItype)0)) | |
241 | #endif | |
242 | ||
243 | #if defined (__hppa) | |
244 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
245 | __asm__ ("add %4,%5,%1 | |
246 | addc %2,%3,%0" \ | |
247 | : "=r" ((USItype)(sh)), \ | |
248 | "=&r" ((USItype)(sl)) \ | |
249 | : "%rM" ((USItype)(ah)), \ | |
250 | "rM" ((USItype)(bh)), \ | |
251 | "%rM" ((USItype)(al)), \ | |
252 | "rM" ((USItype)(bl))) | |
253 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
254 | __asm__ ("sub %4,%5,%1 | |
255 | subb %2,%3,%0" \ | |
256 | : "=r" ((USItype)(sh)), \ | |
257 | "=&r" ((USItype)(sl)) \ | |
258 | : "rM" ((USItype)(ah)), \ | |
259 | "rM" ((USItype)(bh)), \ | |
260 | "rM" ((USItype)(al)), \ | |
261 | "rM" ((USItype)(bl))) | |
262 | #if defined (_PA_RISC1_1) | |
263 | #define umul_ppmm(w1, w0, u, v) \ | |
264 | do { \ | |
265 | union \ | |
266 | { \ | |
267 | UDItype __f; \ | |
268 | struct {USItype __w1, __w0;} __w1w0; \ | |
269 | } __t; \ | |
270 | __asm__ ("xmpyu %1,%2,%0" \ | |
271 | : "=x" (__t.__f) \ | |
272 | : "x" ((USItype)(u)), \ | |
273 | "x" ((USItype)(v))); \ | |
274 | (w1) = __t.__w1w0.__w1; \ | |
275 | (w0) = __t.__w1w0.__w0; \ | |
276 | } while (0) | |
277 | #define UMUL_TIME 8 | |
278 | #else | |
279 | #define UMUL_TIME 30 | |
280 | #endif | |
281 | #define UDIV_TIME 40 | |
282 | #define count_leading_zeros(count, x) \ | |
283 | do { \ | |
284 | USItype __tmp; \ | |
285 | __asm__ ( \ | |
286 | "ldi 1,%0 | |
287 | extru,= %1,15,16,%%r0 ; Bits 31..16 zero? | |
288 | extru,tr %1,15,16,%1 ; No. Shift down, skip add. | |
289 | ldo 16(%0),%0 ; Yes. Perform add. | |
290 | extru,= %1,23,8,%%r0 ; Bits 15..8 zero? | |
291 | extru,tr %1,23,8,%1 ; No. Shift down, skip add. | |
292 | ldo 8(%0),%0 ; Yes. Perform add. | |
293 | extru,= %1,27,4,%%r0 ; Bits 7..4 zero? | |
294 | extru,tr %1,27,4,%1 ; No. Shift down, skip add. | |
295 | ldo 4(%0),%0 ; Yes. Perform add. | |
296 | extru,= %1,29,2,%%r0 ; Bits 3..2 zero? | |
297 | extru,tr %1,29,2,%1 ; No. Shift down, skip add. | |
298 | ldo 2(%0),%0 ; Yes. Perform add. | |
299 | extru %1,30,1,%1 ; Extract bit 1. | |
300 | sub %0,%1,%0 ; Subtract it. | |
301 | " : "=r" (count), "=r" (__tmp) : "1" (x)); \ | |
302 | } while (0) | |
303 | #endif | |
304 | ||
305 | #if defined (__i386__) || defined (__i486__) | |
306 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
307 | __asm__ ("addl %5,%1 | |
308 | adcl %3,%0" \ | |
309 | : "=r" ((USItype)(sh)), \ | |
310 | "=&r" ((USItype)(sl)) \ | |
311 | : "%0" ((USItype)(ah)), \ | |
312 | "g" ((USItype)(bh)), \ | |
313 | "%1" ((USItype)(al)), \ | |
314 | "g" ((USItype)(bl))) | |
315 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
316 | __asm__ ("subl %5,%1 | |
317 | sbbl %3,%0" \ | |
318 | : "=r" ((USItype)(sh)), \ | |
319 | "=&r" ((USItype)(sl)) \ | |
320 | : "0" ((USItype)(ah)), \ | |
321 | "g" ((USItype)(bh)), \ | |
322 | "1" ((USItype)(al)), \ | |
323 | "g" ((USItype)(bl))) | |
324 | #define umul_ppmm(w1, w0, u, v) \ | |
325 | __asm__ ("mull %3" \ | |
326 | : "=a" ((USItype)(w0)), \ | |
327 | "=d" ((USItype)(w1)) \ | |
328 | : "%0" ((USItype)(u)), \ | |
329 | "rm" ((USItype)(v))) | |
330 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
331 | __asm__ ("divl %4" \ | |
332 | : "=a" ((USItype)(q)), \ | |
333 | "=d" ((USItype)(r)) \ | |
334 | : "0" ((USItype)(n0)), \ | |
335 | "1" ((USItype)(n1)), \ | |
336 | "rm" ((USItype)(d))) | |
337 | #define count_leading_zeros(count, x) \ | |
338 | do { \ | |
339 | USItype __cbtmp; \ | |
340 | __asm__ ("bsrl %1,%0" \ | |
341 | : "=r" (__cbtmp) : "rm" ((USItype)(x))); \ | |
342 | (count) = __cbtmp ^ 31; \ | |
343 | } while (0) | |
344 | #define UMUL_TIME 40 | |
345 | #define UDIV_TIME 40 | |
346 | #endif /* 80x86 */ | |
347 | ||
348 | #if defined (__i860__) | |
349 | #if 0 | |
350 | /* Make sure these patterns really improve the code before | |
351 | switching them on. */ | |
352 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
353 | do { \ | |
354 | union \ | |
355 | { \ | |
356 | DItype __ll; \ | |
357 | struct {USItype __l, __h;} __i; \ | |
358 | } __a, __b, __s; \ | |
359 | __a.__i.__l = (al); \ | |
360 | __a.__i.__h = (ah); \ | |
361 | __b.__i.__l = (bl); \ | |
362 | __b.__i.__h = (bh); \ | |
363 | __asm__ ("fiadd.dd %1,%2,%0" \ | |
364 | : "=f" (__s.__ll) \ | |
365 | : "%f" (__a.__ll), "f" (__b.__ll)); \ | |
366 | (sh) = __s.__i.__h; \ | |
367 | (sl) = __s.__i.__l; \ | |
368 | } while (0) | |
369 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
370 | do { \ | |
371 | union \ | |
372 | { \ | |
373 | DItype __ll; \ | |
374 | struct {USItype __l, __h;} __i; \ | |
375 | } __a, __b, __s; \ | |
376 | __a.__i.__l = (al); \ | |
377 | __a.__i.__h = (ah); \ | |
378 | __b.__i.__l = (bl); \ | |
379 | __b.__i.__h = (bh); \ | |
380 | __asm__ ("fisub.dd %1,%2,%0" \ | |
381 | : "=f" (__s.__ll) \ | |
382 | : "%f" (__a.__ll), "f" (__b.__ll)); \ | |
383 | (sh) = __s.__i.__h; \ | |
384 | (sl) = __s.__i.__l; \ | |
385 | } while (0) | |
386 | #endif | |
387 | #endif /* __i860__ */ | |
388 | ||
389 | #if defined (__i960__) | |
390 | #define umul_ppmm(w1, w0, u, v) \ | |
391 | ({union {UDItype __ll; \ | |
392 | struct {USItype __l, __h;} __i; \ | |
393 | } __xx; \ | |
394 | __asm__ ("emul %2,%1,%0" \ | |
395 | : "=d" (__xx.__ll) \ | |
396 | : "%dI" ((USItype)(u)), \ | |
397 | "dI" ((USItype)(v))); \ | |
398 | (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) | |
399 | #define __umulsidi3(u, v) \ | |
400 | ({UDItype __w; \ | |
401 | __asm__ ("emul %2,%1,%0" \ | |
402 | : "=d" (__w) \ | |
403 | : "%dI" ((USItype)(u)), \ | |
404 | "dI" ((USItype)(v))); \ | |
405 | __w; }) | |
406 | #endif /* __i960__ */ | |
407 | ||
408 | #if defined (__mc68000__) | |
409 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
410 | __asm__ ("add%.l %5,%1 | |
411 | addx%.l %3,%0" \ | |
412 | : "=d" ((USItype)(sh)), \ | |
413 | "=&d" ((USItype)(sl)) \ | |
414 | : "%0" ((USItype)(ah)), \ | |
415 | "d" ((USItype)(bh)), \ | |
416 | "%1" ((USItype)(al)), \ | |
417 | "g" ((USItype)(bl))) | |
418 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
419 | __asm__ ("sub%.l %5,%1 | |
420 | subx%.l %3,%0" \ | |
421 | : "=d" ((USItype)(sh)), \ | |
422 | "=&d" ((USItype)(sl)) \ | |
423 | : "0" ((USItype)(ah)), \ | |
424 | "d" ((USItype)(bh)), \ | |
425 | "1" ((USItype)(al)), \ | |
426 | "g" ((USItype)(bl))) | |
427 | #if defined (__mc68020__) || defined (__NeXT__) || defined(mc68020) | |
428 | #define umul_ppmm(w1, w0, u, v) \ | |
429 | __asm__ ("mulu%.l %3,%1:%0" \ | |
430 | : "=d" ((USItype)(w0)), \ | |
431 | "=d" ((USItype)(w1)) \ | |
432 | : "%0" ((USItype)(u)), \ | |
433 | "dmi" ((USItype)(v))) | |
434 | #define UMUL_TIME 45 | |
435 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
436 | __asm__ ("divu%.l %4,%1:%0" \ | |
437 | : "=d" ((USItype)(q)), \ | |
438 | "=d" ((USItype)(r)) \ | |
439 | : "0" ((USItype)(n0)), \ | |
440 | "1" ((USItype)(n1)), \ | |
441 | "dmi" ((USItype)(d))) | |
442 | #define UDIV_TIME 90 | |
443 | #define sdiv_qrnnd(q, r, n1, n0, d) \ | |
444 | __asm__ ("divs%.l %4,%1:%0" \ | |
445 | : "=d" ((USItype)(q)), \ | |
446 | "=d" ((USItype)(r)) \ | |
447 | : "0" ((USItype)(n0)), \ | |
448 | "1" ((USItype)(n1)), \ | |
449 | "dmi" ((USItype)(d))) | |
450 | #define count_leading_zeros(count, x) \ | |
451 | __asm__ ("bfffo %1{%b2:%b2},%0" \ | |
452 | : "=d" ((USItype)(count)) \ | |
453 | : "od" ((USItype)(x)), "n" (0)) | |
454 | #else /* not mc68020 */ | |
455 | /* %/ inserts REGISTER_PREFIX. */ | |
456 | #define umul_ppmm(xh, xl, a, b) \ | |
457 | __asm__ ("| Inlined umul_ppmm | |
458 | move%.l %2,%/d0 | |
459 | move%.l %3,%/d1 | |
460 | move%.l %/d0,%/d2 | |
461 | swap %/d0 | |
462 | move%.l %/d1,%/d3 | |
463 | swap %/d1 | |
464 | move%.w %/d2,%/d4 | |
465 | mulu %/d3,%/d4 | |
466 | mulu %/d1,%/d2 | |
467 | mulu %/d0,%/d3 | |
468 | mulu %/d0,%/d1 | |
469 | move%.l %/d4,%/d0 | |
470 | eor%.w %/d0,%/d0 | |
471 | swap %/d0 | |
472 | add%.l %/d0,%/d2 | |
473 | add%.l %/d3,%/d2 | |
474 | jcc 1f | |
475 | add%.l #65536,%/d1 | |
476 | 1: swap %/d2 | |
477 | moveq #0,%/d0 | |
478 | move%.w %/d2,%/d0 | |
479 | move%.w %/d4,%/d2 | |
480 | move%.l %/d2,%1 | |
481 | add%.l %/d1,%/d0 | |
482 | move%.l %/d0,%0" \ | |
483 | : "=g" ((USItype)(xh)), \ | |
484 | "=g" ((USItype)(xl)) \ | |
485 | : "g" ((USItype)(a)), \ | |
486 | "g" ((USItype)(b)) \ | |
487 | : "d0", "d1", "d2", "d3", "d4") | |
488 | #define UMUL_TIME 100 | |
489 | #define UDIV_TIME 400 | |
490 | #endif /* not mc68020 */ | |
491 | #endif /* mc68000 */ | |
492 | ||
493 | #if defined (__m88000__) | |
494 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
495 | __asm__ ("addu.co %1,%r4,%r5 | |
496 | addu.ci %0,%r2,%r3" \ | |
497 | : "=r" ((USItype)(sh)), \ | |
498 | "=&r" ((USItype)(sl)) \ | |
499 | : "%rJ" ((USItype)(ah)), \ | |
500 | "rJ" ((USItype)(bh)), \ | |
501 | "%rJ" ((USItype)(al)), \ | |
502 | "rJ" ((USItype)(bl))) | |
503 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
504 | __asm__ ("subu.co %1,%r4,%r5 | |
505 | subu.ci %0,%r2,%r3" \ | |
506 | : "=r" ((USItype)(sh)), \ | |
507 | "=&r" ((USItype)(sl)) \ | |
508 | : "rJ" ((USItype)(ah)), \ | |
509 | "rJ" ((USItype)(bh)), \ | |
510 | "rJ" ((USItype)(al)), \ | |
511 | "rJ" ((USItype)(bl))) | |
512 | #define count_leading_zeros(count, x) \ | |
513 | do { \ | |
514 | USItype __cbtmp; \ | |
515 | __asm__ ("ff1 %0,%1" \ | |
516 | : "=r" (__cbtmp) \ | |
517 | : "r" ((USItype)(x))); \ | |
518 | (count) = __cbtmp ^ 31; \ | |
519 | } while (0) | |
520 | #if defined (__mc88110__) | |
521 | #define umul_ppmm(wh, wl, u, v) \ | |
522 | do { \ | |
523 | union {UDItype __ll; \ | |
524 | struct {USItype __h, __l;} __i; \ | |
525 | } __xx; \ | |
526 | __asm__ ("mulu.d %0,%1,%2" \ | |
527 | : "=r" (__xx.__ll) \ | |
528 | : "r" ((USItype)(u)), \ | |
529 | "r" ((USItype)(v))); \ | |
530 | (wh) = __xx.__i.__h; \ | |
531 | (wl) = __xx.__i.__l; \ | |
532 | } while (0) | |
533 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
534 | ({union {UDItype __ll; \ | |
535 | struct {USItype __h, __l;} __i; \ | |
536 | } __xx; \ | |
537 | USItype __q; \ | |
538 | __xx.__i.__h = (n1); __xx.__i.__l = (n0); \ | |
539 | __asm__ ("divu.d %0,%1,%2" \ | |
540 | : "=r" (__q) \ | |
541 | : "r" (__xx.__ll), \ | |
542 | "r" ((USItype)(d))); \ | |
543 | (r) = (n0) - __q * (d); (q) = __q; }) | |
544 | #define UMUL_TIME 5 | |
545 | #define UDIV_TIME 25 | |
546 | #else | |
547 | #define UMUL_TIME 17 | |
548 | #define UDIV_TIME 150 | |
549 | #endif /* __mc88110__ */ | |
550 | #endif /* __m88000__ */ | |
551 | ||
552 | #if defined (__mips__) | |
553 | #define umul_ppmm(w1, w0, u, v) \ | |
554 | __asm__ ("multu %2,%3 | |
555 | mflo %0 | |
556 | mfhi %1" \ | |
557 | : "=d" ((USItype)(w0)), \ | |
558 | "=d" ((USItype)(w1)) \ | |
559 | : "d" ((USItype)(u)), \ | |
560 | "d" ((USItype)(v))) | |
561 | #define UMUL_TIME 10 | |
562 | #define UDIV_TIME 100 | |
563 | #endif /* __mips__ */ | |
564 | ||
565 | #if defined (__ns32000__) | |
566 | #define umul_ppmm(w1, w0, u, v) \ | |
567 | ({union {UDItype __ll; \ | |
568 | struct {USItype __l, __h;} __i; \ | |
569 | } __xx; \ | |
570 | __asm__ ("meid %2,%0" \ | |
571 | : "=g" (__xx.__ll) \ | |
572 | : "%0" ((USItype)(u)), \ | |
573 | "g" ((USItype)(v))); \ | |
574 | (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) | |
575 | #define __umulsidi3(u, v) \ | |
576 | ({UDItype __w; \ | |
577 | __asm__ ("meid %2,%0" \ | |
578 | : "=g" (__w) \ | |
579 | : "%0" ((USItype)(u)), \ | |
580 | "g" ((USItype)(v))); \ | |
581 | __w; }) | |
582 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
583 | ({union {UDItype __ll; \ | |
584 | struct {USItype __l, __h;} __i; \ | |
585 | } __xx; \ | |
586 | __xx.__i.__h = (n1); __xx.__i.__l = (n0); \ | |
587 | __asm__ ("deid %2,%0" \ | |
588 | : "=g" (__xx.__ll) \ | |
589 | : "0" (__xx.__ll), \ | |
590 | "g" ((USItype)(d))); \ | |
591 | (r) = __xx.__i.__l; (q) = __xx.__i.__h; }) | |
592 | #endif /* __ns32000__ */ | |
593 | ||
594 | #if (defined (_ARCH_PPC) || defined (_IBMR2)) && W_TYPE_SIZE == 32 | |
595 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
596 | do { \ | |
597 | if (__builtin_constant_p (bh) && (bh) == 0) \ | |
598 | __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \ | |
599 | : "=r" ((USItype)(sh)), \ | |
600 | "=&r" ((USItype)(sl)) \ | |
601 | : "%r" ((USItype)(ah)), \ | |
602 | "%r" ((USItype)(al)), \ | |
603 | "rI" ((USItype)(bl))); \ | |
604 | else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0) \ | |
605 | __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \ | |
606 | : "=r" ((USItype)(sh)), \ | |
607 | "=&r" ((USItype)(sl)) \ | |
608 | : "%r" ((USItype)(ah)), \ | |
609 | "%r" ((USItype)(al)), \ | |
610 | "rI" ((USItype)(bl))); \ | |
611 | else \ | |
612 | __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \ | |
613 | : "=r" ((USItype)(sh)), \ | |
614 | "=&r" ((USItype)(sl)) \ | |
615 | : "%r" ((USItype)(ah)), \ | |
616 | "r" ((USItype)(bh)), \ | |
617 | "%r" ((USItype)(al)), \ | |
618 | "rI" ((USItype)(bl))); \ | |
619 | } while (0) | |
620 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
621 | do { \ | |
622 | if (__builtin_constant_p (ah) && (ah) == 0) \ | |
623 | __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \ | |
624 | : "=r" ((USItype)(sh)), \ | |
625 | "=&r" ((USItype)(sl)) \ | |
626 | : "r" ((USItype)(bh)), \ | |
627 | "rI" ((USItype)(al)), \ | |
628 | "r" ((USItype)(bl))); \ | |
629 | else if (__builtin_constant_p (ah) && (ah) ==~(USItype) 0) \ | |
630 | __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \ | |
631 | : "=r" ((USItype)(sh)), \ | |
632 | "=&r" ((USItype)(sl)) \ | |
633 | : "r" ((USItype)(bh)), \ | |
634 | "rI" ((USItype)(al)), \ | |
635 | "r" ((USItype)(bl))); \ | |
636 | else if (__builtin_constant_p (bh) && (bh) == 0) \ | |
637 | __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \ | |
638 | : "=r" ((USItype)(sh)), \ | |
639 | "=&r" ((USItype)(sl)) \ | |
640 | : "r" ((USItype)(ah)), \ | |
641 | "rI" ((USItype)(al)), \ | |
642 | "r" ((USItype)(bl))); \ | |
643 | else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0) \ | |
644 | __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \ | |
645 | : "=r" ((USItype)(sh)), \ | |
646 | "=&r" ((USItype)(sl)) \ | |
647 | : "r" ((USItype)(ah)), \ | |
648 | "rI" ((USItype)(al)), \ | |
649 | "r" ((USItype)(bl))); \ | |
650 | else \ | |
651 | __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \ | |
652 | : "=r" ((USItype)(sh)), \ | |
653 | "=&r" ((USItype)(sl)) \ | |
654 | : "r" ((USItype)(ah)), \ | |
655 | "r" ((USItype)(bh)), \ | |
656 | "rI" ((USItype)(al)), \ | |
657 | "r" ((USItype)(bl))); \ | |
658 | } while (0) | |
659 | #define count_leading_zeros(count, x) \ | |
660 | __asm__ ("{cntlz|cntlzw} %0,%1" \ | |
661 | : "=r" ((USItype)(count)) \ | |
662 | : "r" ((USItype)(x))) | |
663 | #if defined (_ARCH_PPC) | |
664 | #define umul_ppmm(ph, pl, m0, m1) \ | |
665 | do { \ | |
666 | USItype __m0 = (m0), __m1 = (m1); \ | |
667 | __asm__ ("mulhwu %0,%1,%2" \ | |
668 | : "=r" ((USItype) ph) \ | |
669 | : "%r" (__m0), \ | |
670 | "r" (__m1)); \ | |
671 | (pl) = __m0 * __m1; \ | |
672 | } while (0) | |
673 | #define UMUL_TIME 15 | |
674 | #define smul_ppmm(ph, pl, m0, m1) \ | |
675 | do { \ | |
676 | SItype __m0 = (m0), __m1 = (m1); \ | |
677 | __asm__ ("mulhw %0,%1,%2" \ | |
678 | : "=r" ((SItype) ph) \ | |
679 | : "%r" (__m0), \ | |
680 | "r" (__m1)); \ | |
681 | (pl) = __m0 * __m1; \ | |
682 | } while (0) | |
683 | #define SMUL_TIME 14 | |
684 | #define UDIV_TIME 120 | |
685 | #else | |
686 | #define umul_ppmm(xh, xl, m0, m1) \ | |
687 | do { \ | |
688 | USItype __m0 = (m0), __m1 = (m1); \ | |
689 | __asm__ ("mul %0,%2,%3" \ | |
690 | : "=r" ((USItype)(xh)), \ | |
691 | "=q" ((USItype)(xl)) \ | |
692 | : "r" (__m0), \ | |
693 | "r" (__m1)); \ | |
694 | (xh) += ((((SItype) __m0 >> 31) & __m1) \ | |
695 | + (((SItype) __m1 >> 31) & __m0)); \ | |
696 | } while (0) | |
697 | #define UMUL_TIME 8 | |
698 | #define smul_ppmm(xh, xl, m0, m1) \ | |
699 | __asm__ ("mul %0,%2,%3" \ | |
700 | : "=r" ((SItype)(xh)), \ | |
701 | "=q" ((SItype)(xl)) \ | |
702 | : "r" (m0), \ | |
703 | "r" (m1)) | |
704 | #define SMUL_TIME 4 | |
705 | #define sdiv_qrnnd(q, r, nh, nl, d) \ | |
706 | __asm__ ("div %0,%2,%4" \ | |
707 | : "=r" ((SItype)(q)), "=q" ((SItype)(r)) \ | |
708 | : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d))) | |
709 | #define UDIV_TIME 100 | |
710 | #endif | |
711 | #endif /* Power architecture variants. */ | |
712 | ||
713 | #if defined (__pyr__) | |
714 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
715 | __asm__ ("addw %5,%1 | |
716 | addwc %3,%0" \ | |
717 | : "=r" ((USItype)(sh)), \ | |
718 | "=&r" ((USItype)(sl)) \ | |
719 | : "%0" ((USItype)(ah)), \ | |
720 | "g" ((USItype)(bh)), \ | |
721 | "%1" ((USItype)(al)), \ | |
722 | "g" ((USItype)(bl))) | |
723 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
724 | __asm__ ("subw %5,%1 | |
725 | subwb %3,%0" \ | |
726 | : "=r" ((USItype)(sh)), \ | |
727 | "=&r" ((USItype)(sl)) \ | |
728 | : "0" ((USItype)(ah)), \ | |
729 | "g" ((USItype)(bh)), \ | |
730 | "1" ((USItype)(al)), \ | |
731 | "g" ((USItype)(bl))) | |
732 | /* This insn doesn't work on ancient pyramids. */ | |
733 | #define umul_ppmm(w1, w0, u, v) \ | |
734 | ({union { \ | |
735 | UDItype __ll; \ | |
736 | struct {USItype __h, __l;} __i; \ | |
737 | } __xx; \ | |
738 | __xx.__i.__l = u; \ | |
739 | __asm__ ("uemul %3,%0" \ | |
740 | : "=r" (__xx.__i.__h), \ | |
741 | "=r" (__xx.__i.__l) \ | |
742 | : "1" (__xx.__i.__l), \ | |
743 | "g" ((USItype)(v))); \ | |
744 | (w1) = __xx.__i.__h; \ | |
745 | (w0) = __xx.__i.__l;}) | |
746 | #endif /* __pyr__ */ | |
747 | ||
748 | #if defined (__ibm032__) /* RT/ROMP */ | |
749 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
750 | __asm__ ("a %1,%5 | |
751 | ae %0,%3" \ | |
752 | : "=r" ((USItype)(sh)), \ | |
753 | "=&r" ((USItype)(sl)) \ | |
754 | : "%0" ((USItype)(ah)), \ | |
755 | "r" ((USItype)(bh)), \ | |
756 | "%1" ((USItype)(al)), \ | |
757 | "r" ((USItype)(bl))) | |
758 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
759 | __asm__ ("s %1,%5 | |
760 | se %0,%3" \ | |
761 | : "=r" ((USItype)(sh)), \ | |
762 | "=&r" ((USItype)(sl)) \ | |
763 | : "0" ((USItype)(ah)), \ | |
764 | "r" ((USItype)(bh)), \ | |
765 | "1" ((USItype)(al)), \ | |
766 | "r" ((USItype)(bl))) | |
767 | #define umul_ppmm(ph, pl, m0, m1) \ | |
768 | do { \ | |
769 | USItype __m0 = (m0), __m1 = (m1); \ | |
770 | __asm__ ( \ | |
771 | "s r2,r2 | |
772 | mts r10,%2 | |
773 | m r2,%3 | |
774 | m r2,%3 | |
775 | m r2,%3 | |
776 | m r2,%3 | |
777 | m r2,%3 | |
778 | m r2,%3 | |
779 | m r2,%3 | |
780 | m r2,%3 | |
781 | m r2,%3 | |
782 | m r2,%3 | |
783 | m r2,%3 | |
784 | m r2,%3 | |
785 | m r2,%3 | |
786 | m r2,%3 | |
787 | m r2,%3 | |
788 | m r2,%3 | |
789 | cas %0,r2,r0 | |
790 | mfs r10,%1" \ | |
791 | : "=r" ((USItype)(ph)), \ | |
792 | "=r" ((USItype)(pl)) \ | |
793 | : "%r" (__m0), \ | |
794 | "r" (__m1) \ | |
795 | : "r2"); \ | |
796 | (ph) += ((((SItype) __m0 >> 31) & __m1) \ | |
797 | + (((SItype) __m1 >> 31) & __m0)); \ | |
798 | } while (0) | |
799 | #define UMUL_TIME 20 | |
800 | #define UDIV_TIME 200 | |
801 | #define count_leading_zeros(count, x) \ | |
802 | do { \ | |
803 | if ((x) >= 0x10000) \ | |
804 | __asm__ ("clz %0,%1" \ | |
805 | : "=r" ((USItype)(count)) \ | |
806 | : "r" ((USItype)(x) >> 16)); \ | |
807 | else \ | |
808 | { \ | |
809 | __asm__ ("clz %0,%1" \ | |
810 | : "=r" ((USItype)(count)) \ | |
811 | : "r" ((USItype)(x))); \ | |
812 | (count) += 16; \ | |
813 | } \ | |
814 | } while (0) | |
815 | #endif | |
816 | ||
817 | #if defined (__sparc__) | |
818 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
819 | __asm__ ("addcc %r4,%5,%1 | |
820 | addx %r2,%3,%0" \ | |
821 | : "=r" ((USItype)(sh)), \ | |
822 | "=&r" ((USItype)(sl)) \ | |
823 | : "%rJ" ((USItype)(ah)), \ | |
824 | "rI" ((USItype)(bh)), \ | |
825 | "%rJ" ((USItype)(al)), \ | |
826 | "rI" ((USItype)(bl)) \ | |
827 | __CLOBBER_CC) | |
828 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
829 | __asm__ ("subcc %r4,%5,%1 | |
830 | subx %r2,%3,%0" \ | |
831 | : "=r" ((USItype)(sh)), \ | |
832 | "=&r" ((USItype)(sl)) \ | |
833 | : "rJ" ((USItype)(ah)), \ | |
834 | "rI" ((USItype)(bh)), \ | |
835 | "rJ" ((USItype)(al)), \ | |
836 | "rI" ((USItype)(bl)) \ | |
837 | __CLOBBER_CC) | |
838 | #if defined (__sparc_v8__) | |
839 | #define umul_ppmm(w1, w0, u, v) \ | |
840 | __asm__ ("umul %2,%3,%1;rd %%y,%0" \ | |
841 | : "=r" ((USItype)(w1)), \ | |
842 | "=r" ((USItype)(w0)) \ | |
843 | : "r" ((USItype)(u)), \ | |
844 | "r" ((USItype)(v))) | |
845 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
846 | __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\ | |
847 | : "=&r" ((USItype)(q)), \ | |
848 | "=&r" ((USItype)(r)) \ | |
849 | : "r" ((USItype)(n1)), \ | |
850 | "r" ((USItype)(n0)), \ | |
851 | "r" ((USItype)(d))) | |
852 | #else | |
853 | #if defined (__sparclite__) | |
854 | /* This has hardware multiply but not divide. It also has two additional | |
855 | instructions scan (ffs from high bit) and divscc. */ | |
856 | #define umul_ppmm(w1, w0, u, v) \ | |
857 | __asm__ ("umul %2,%3,%1;rd %%y,%0" \ | |
858 | : "=r" ((USItype)(w1)), \ | |
859 | "=r" ((USItype)(w0)) \ | |
860 | : "r" ((USItype)(u)), \ | |
861 | "r" ((USItype)(v))) | |
862 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
863 | __asm__ ("! Inlined udiv_qrnnd | |
864 | wr %%g0,%2,%%y ! Not a delayed write for sparclite | |
865 | tst %%g0 | |
866 | divscc %3,%4,%%g1 | |
867 | divscc %%g1,%4,%%g1 | |
868 | divscc %%g1,%4,%%g1 | |
869 | divscc %%g1,%4,%%g1 | |
870 | divscc %%g1,%4,%%g1 | |
871 | divscc %%g1,%4,%%g1 | |
872 | divscc %%g1,%4,%%g1 | |
873 | divscc %%g1,%4,%%g1 | |
874 | divscc %%g1,%4,%%g1 | |
875 | divscc %%g1,%4,%%g1 | |
876 | divscc %%g1,%4,%%g1 | |
877 | divscc %%g1,%4,%%g1 | |
878 | divscc %%g1,%4,%%g1 | |
879 | divscc %%g1,%4,%%g1 | |
880 | divscc %%g1,%4,%%g1 | |
881 | divscc %%g1,%4,%%g1 | |
882 | divscc %%g1,%4,%%g1 | |
883 | divscc %%g1,%4,%%g1 | |
884 | divscc %%g1,%4,%%g1 | |
885 | divscc %%g1,%4,%%g1 | |
886 | divscc %%g1,%4,%%g1 | |
887 | divscc %%g1,%4,%%g1 | |
888 | divscc %%g1,%4,%%g1 | |
889 | divscc %%g1,%4,%%g1 | |
890 | divscc %%g1,%4,%%g1 | |
891 | divscc %%g1,%4,%%g1 | |
892 | divscc %%g1,%4,%%g1 | |
893 | divscc %%g1,%4,%%g1 | |
894 | divscc %%g1,%4,%%g1 | |
895 | divscc %%g1,%4,%%g1 | |
896 | divscc %%g1,%4,%%g1 | |
897 | divscc %%g1,%4,%0 | |
898 | rd %%y,%1 | |
899 | bl,a 1f | |
900 | add %1,%4,%1 | |
901 | 1: ! End of inline udiv_qrnnd" \ | |
902 | : "=r" ((USItype)(q)), \ | |
903 | "=r" ((USItype)(r)) \ | |
904 | : "r" ((USItype)(n1)), \ | |
905 | "r" ((USItype)(n0)), \ | |
906 | "rI" ((USItype)(d)) \ | |
907 | : "%g1" __AND_CLOBBER_CC) | |
908 | #define UDIV_TIME 37 | |
909 | #define count_leading_zeros(count, x) \ | |
910 | __asm__ ("scan %1,0,%0" \ | |
911 | : "=r" ((USItype)(x)) \ | |
912 | : "r" ((USItype)(count))) | |
913 | #else | |
914 | /* SPARC without integer multiplication and divide instructions. | |
915 | (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */ | |
916 | #define umul_ppmm(w1, w0, u, v) \ | |
917 | __asm__ ("! Inlined umul_ppmm | |
918 | wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr | |
919 | sra %3,31,%%g2 ! Don't move this insn | |
920 | and %2,%%g2,%%g2 ! Don't move this insn | |
921 | andcc %%g0,0,%%g1 ! Don't move this insn | |
922 | mulscc %%g1,%3,%%g1 | |
923 | mulscc %%g1,%3,%%g1 | |
924 | mulscc %%g1,%3,%%g1 | |
925 | mulscc %%g1,%3,%%g1 | |
926 | mulscc %%g1,%3,%%g1 | |
927 | mulscc %%g1,%3,%%g1 | |
928 | mulscc %%g1,%3,%%g1 | |
929 | mulscc %%g1,%3,%%g1 | |
930 | mulscc %%g1,%3,%%g1 | |
931 | mulscc %%g1,%3,%%g1 | |
932 | mulscc %%g1,%3,%%g1 | |
933 | mulscc %%g1,%3,%%g1 | |
934 | mulscc %%g1,%3,%%g1 | |
935 | mulscc %%g1,%3,%%g1 | |
936 | mulscc %%g1,%3,%%g1 | |
937 | mulscc %%g1,%3,%%g1 | |
938 | mulscc %%g1,%3,%%g1 | |
939 | mulscc %%g1,%3,%%g1 | |
940 | mulscc %%g1,%3,%%g1 | |
941 | mulscc %%g1,%3,%%g1 | |
942 | mulscc %%g1,%3,%%g1 | |
943 | mulscc %%g1,%3,%%g1 | |
944 | mulscc %%g1,%3,%%g1 | |
945 | mulscc %%g1,%3,%%g1 | |
946 | mulscc %%g1,%3,%%g1 | |
947 | mulscc %%g1,%3,%%g1 | |
948 | mulscc %%g1,%3,%%g1 | |
949 | mulscc %%g1,%3,%%g1 | |
950 | mulscc %%g1,%3,%%g1 | |
951 | mulscc %%g1,%3,%%g1 | |
952 | mulscc %%g1,%3,%%g1 | |
953 | mulscc %%g1,%3,%%g1 | |
954 | mulscc %%g1,0,%%g1 | |
955 | add %%g1,%%g2,%0 | |
956 | rd %%y,%1" \ | |
957 | : "=r" ((USItype)(w1)), \ | |
958 | "=r" ((USItype)(w0)) \ | |
959 | : "%rI" ((USItype)(u)), \ | |
960 | "r" ((USItype)(v)) \ | |
961 | : "%g1", "%g2" __AND_CLOBBER_CC) | |
962 | #define UMUL_TIME 39 /* 39 instructions */ | |
963 | /* It's quite necessary to add this much assembler for the sparc. | |
964 | The default udiv_qrnnd (in C) is more than 10 times slower! */ | |
965 | #define udiv_qrnnd(q, r, n1, n0, d) \ | |
966 | __asm__ ("! Inlined udiv_qrnnd | |
967 | mov 32,%%g1 | |
968 | subcc %1,%2,%%g0 | |
969 | 1: bcs 5f | |
970 | addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb | |
971 | sub %1,%2,%1 ! this kills msb of n | |
972 | addx %1,%1,%1 ! so this can't give carry | |
973 | subcc %%g1,1,%%g1 | |
974 | 2: bne 1b | |
975 | subcc %1,%2,%%g0 | |
976 | bcs 3f | |
977 | addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb | |
978 | b 3f | |
979 | sub %1,%2,%1 ! this kills msb of n | |
980 | 4: sub %1,%2,%1 | |
981 | 5: addxcc %1,%1,%1 | |
982 | bcc 2b | |
983 | subcc %%g1,1,%%g1 | |
984 | ! Got carry from n. Subtract next step to cancel this carry. | |
985 | bne 4b | |
986 | addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb | |
987 | sub %1,%2,%1 | |
988 | 3: xnor %0,0,%0 | |
989 | ! End of inline udiv_qrnnd" \ | |
990 | : "=&r" ((USItype)(q)), \ | |
991 | "=&r" ((USItype)(r)) \ | |
992 | : "r" ((USItype)(d)), \ | |
993 | "1" ((USItype)(n1)), \ | |
994 | "0" ((USItype)(n0)) : "%g1" __AND_CLOBBER_CC) | |
995 | #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */ | |
996 | #endif /* __sparclite__ */ | |
997 | #endif /* __sparc_v8__ */ | |
998 | #endif /* __sparc__ */ | |
999 | ||
1000 | #if defined (__vax__) | |
1001 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
1002 | __asm__ ("addl2 %5,%1 | |
1003 | adwc %3,%0" \ | |
1004 | : "=g" ((USItype)(sh)), \ | |
1005 | "=&g" ((USItype)(sl)) \ | |
1006 | : "%0" ((USItype)(ah)), \ | |
1007 | "g" ((USItype)(bh)), \ | |
1008 | "%1" ((USItype)(al)), \ | |
1009 | "g" ((USItype)(bl))) | |
1010 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
1011 | __asm__ ("subl2 %5,%1 | |
1012 | sbwc %3,%0" \ | |
1013 | : "=g" ((USItype)(sh)), \ | |
1014 | "=&g" ((USItype)(sl)) \ | |
1015 | : "0" ((USItype)(ah)), \ | |
1016 | "g" ((USItype)(bh)), \ | |
1017 | "1" ((USItype)(al)), \ | |
1018 | "g" ((USItype)(bl))) | |
1019 | #define umul_ppmm(xh, xl, m0, m1) \ | |
1020 | do { \ | |
1021 | union { \ | |
1022 | UDItype __ll; \ | |
1023 | struct {USItype __l, __h;} __i; \ | |
1024 | } __xx; \ | |
1025 | USItype __m0 = (m0), __m1 = (m1); \ | |
1026 | __asm__ ("emul %1,%2,$0,%0" \ | |
1027 | : "=r" (__xx.__ll) \ | |
1028 | : "g" (__m0), \ | |
1029 | "g" (__m1)); \ | |
1030 | (xh) = __xx.__i.__h; \ | |
1031 | (xl) = __xx.__i.__l; \ | |
1032 | (xh) += ((((SItype) __m0 >> 31) & __m1) \ | |
1033 | + (((SItype) __m1 >> 31) & __m0)); \ | |
1034 | } while (0) | |
1035 | #define sdiv_qrnnd(q, r, n1, n0, d) \ | |
1036 | do { \ | |
1037 | union {DItype __ll; \ | |
1038 | struct {SItype __l, __h;} __i; \ | |
1039 | } __xx; \ | |
1040 | __xx.__i.__h = n1; __xx.__i.__l = n0; \ | |
1041 | __asm__ ("ediv %3,%2,%0,%1" \ | |
1042 | : "=g" (q), "=g" (r) \ | |
1043 | : "g" (__n1n0.ll), "g" (d)); \ | |
1044 | } while (0) | |
1045 | #endif /* __vax__ */ | |
1046 | ||
1047 | #endif /* __GNUC__ */ | |
1048 | ||
1049 | /* If this machine has no inline assembler, use C macros. */ | |
1050 | ||
1051 | #if !defined (add_ssaaaa) | |
1052 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ | |
1053 | do { \ | |
1054 | USItype __x; \ | |
1055 | __x = (al) + (bl); \ | |
1056 | (sh) = (ah) + (bh) + (__x < (al)); \ | |
1057 | (sl) = __x; \ | |
1058 | } while (0) | |
1059 | #endif | |
1060 | ||
1061 | #if !defined (sub_ddmmss) | |
1062 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ | |
1063 | do { \ | |
1064 | USItype __x; \ | |
1065 | __x = (al) - (bl); \ | |
1066 | (sh) = (ah) - (bh) - (__x > (al)); \ | |
1067 | (sl) = __x; \ | |
1068 | } while (0) | |
1069 | #endif | |
1070 | ||
1071 | #if !defined (umul_ppmm) | |
1072 | #define umul_ppmm(w1, w0, u, v) \ | |
1073 | do { \ | |
1074 | USItype __x0, __x1, __x2, __x3; \ | |
1075 | USItype __ul, __vl, __uh, __vh; \ | |
1076 | \ | |
1077 | __ul = __ll_lowpart (u); \ | |
1078 | __uh = __ll_highpart (u); \ | |
1079 | __vl = __ll_lowpart (v); \ | |
1080 | __vh = __ll_highpart (v); \ | |
1081 | \ | |
1082 | __x0 = (USItype) __ul * __vl; \ | |
1083 | __x1 = (USItype) __ul * __vh; \ | |
1084 | __x2 = (USItype) __uh * __vl; \ | |
1085 | __x3 = (USItype) __uh * __vh; \ | |
1086 | \ | |
1087 | __x1 += __ll_highpart (__x0);/* this can't give carry */ \ | |
1088 | __x1 += __x2; /* but this indeed can */ \ | |
1089 | if (__x1 < __x2) /* did we get it? */ \ | |
1090 | __x3 += __ll_B; /* yes, add it in the proper pos. */ \ | |
1091 | \ | |
1092 | (w1) = __x3 + __ll_highpart (__x1); \ | |
1093 | (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ | |
1094 | } while (0) | |
1095 | #endif | |
1096 | ||
1097 | #if !defined (__umulsidi3) | |
1098 | #define __umulsidi3(u, v) \ | |
1099 | ({DIunion __w; \ | |
1100 | umul_ppmm (__w.s.high, __w.s.low, u, v); \ | |
1101 | __w.ll; }) | |
1102 | #endif | |
1103 | ||
1104 | /* Define this unconditionally, so it can be used for debugging. */ | |
1105 | #define __udiv_qrnnd_c(q, r, n1, n0, d) \ | |
1106 | do { \ | |
1107 | USItype __d1, __d0, __q1, __q0; \ | |
1108 | USItype __r1, __r0, __m; \ | |
1109 | __d1 = __ll_highpart (d); \ | |
1110 | __d0 = __ll_lowpart (d); \ | |
1111 | \ | |
1112 | __r1 = (n1) % __d1; \ | |
1113 | __q1 = (n1) / __d1; \ | |
1114 | __m = (USItype) __q1 * __d0; \ | |
1115 | __r1 = __r1 * __ll_B | __ll_highpart (n0); \ | |
1116 | if (__r1 < __m) \ | |
1117 | { \ | |
1118 | __q1--, __r1 += (d); \ | |
1119 | if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ | |
1120 | if (__r1 < __m) \ | |
1121 | __q1--, __r1 += (d); \ | |
1122 | } \ | |
1123 | __r1 -= __m; \ | |
1124 | \ | |
1125 | __r0 = __r1 % __d1; \ | |
1126 | __q0 = __r1 / __d1; \ | |
1127 | __m = (USItype) __q0 * __d0; \ | |
1128 | __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ | |
1129 | if (__r0 < __m) \ | |
1130 | { \ | |
1131 | __q0--, __r0 += (d); \ | |
1132 | if (__r0 >= (d)) \ | |
1133 | if (__r0 < __m) \ | |
1134 | __q0--, __r0 += (d); \ | |
1135 | } \ | |
1136 | __r0 -= __m; \ | |
1137 | \ | |
1138 | (q) = (USItype) __q1 * __ll_B | __q0; \ | |
1139 | (r) = __r0; \ | |
1140 | } while (0) | |
1141 | ||
1142 | /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through | |
1143 | __udiv_w_sdiv (defined in libgcc or elsewhere). */ | |
1144 | #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd) | |
1145 | #define udiv_qrnnd(q, r, nh, nl, d) \ | |
1146 | do { \ | |
1147 | USItype __r; \ | |
1148 | (q) = __udiv_w_sdiv (&__r, nh, nl, d); \ | |
1149 | (r) = __r; \ | |
1150 | } while (0) | |
1151 | #endif | |
1152 | ||
1153 | /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */ | |
1154 | #if !defined (udiv_qrnnd) | |
1155 | #define UDIV_NEEDS_NORMALIZATION 1 | |
1156 | #define udiv_qrnnd __udiv_qrnnd_c | |
1157 | #endif | |
1158 | ||
1159 | #if !defined (count_leading_zeros) | |
1160 | extern const UQItype __clz_tab[]; | |
1161 | #define count_leading_zeros(count, x) \ | |
1162 | do { \ | |
1163 | USItype __xr = (x); \ | |
1164 | USItype __a; \ | |
1165 | \ | |
1166 | if (SI_TYPE_SIZE <= 32) \ | |
1167 | { \ | |
1168 | __a = __xr < (1<<2*__BITS4) \ | |
1169 | ? (__xr < (1<<__BITS4) ? 0 : __BITS4) \ | |
1170 | : (__xr < (1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \ | |
1171 | } \ | |
1172 | else \ | |
1173 | { \ | |
1174 | for (__a = SI_TYPE_SIZE - 8; __a > 0; __a -= 8) \ | |
1175 | if (((__xr >> __a) & 0xff) != 0) \ | |
1176 | break; \ | |
1177 | } \ | |
1178 | \ | |
1179 | (count) = SI_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \ | |
1180 | } while (0) | |
1181 | #endif | |
1182 | ||
1183 | #ifndef UDIV_NEEDS_NORMALIZATION | |
1184 | #define UDIV_NEEDS_NORMALIZATION 0 | |
1185 | #endif |