1/* longlong.h -- definitions for mixed size 32/64 bit arithmetic. 2 Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2004, 3 2005 Free Software Foundation, Inc. 4 5 This definition file is free software; you can redistribute it 6 and/or modify it under the terms of the GNU General Public 7 License as published by the Free Software Foundation; either 8 version 2, or (at your option) any later version. 9 10 This definition file is distributed in the hope that it will be 11 useful, but WITHOUT ANY WARRANTY; without even the implied 12 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 13 See the GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 Boston, MA 02110-1301, USA. */ 19 20/* You have to define the following before including this file: 21 22 UWtype -- An unsigned type, default type for operations (typically a "word") 23 UHWtype -- An unsigned type, at least half the size of UWtype. 24 UDWtype -- An unsigned type, at least twice as large a UWtype 25 W_TYPE_SIZE -- size in bits of UWtype 26 27 UQItype -- Unsigned 8 bit type. 28 SItype, USItype -- Signed and unsigned 32 bit types. 29 DItype, UDItype -- Signed and unsigned 64 bit types. 30 31 On a 32 bit machine UWtype should typically be USItype; 32 on a 64 bit machine, UWtype should typically be UDItype. */ 33 34#define __BITS4 (W_TYPE_SIZE / 4) 35#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) 36#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) 37#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) 38 39#ifndef W_TYPE_SIZE 40#define W_TYPE_SIZE 32 41#define UWtype USItype 42#define UHWtype USItype 43#define UDWtype UDItype 44#endif 45 46extern const UQItype __clz_tab[256]; 47 48/* Define auxiliary asm macros. 49 50 1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two 51 UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype 52 word product in HIGH_PROD and LOW_PROD. 53 54 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a 55 UDWtype product. This is just a variant of umul_ppmm. 56 57 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, 58 denominator) divides a UDWtype, composed by the UWtype integers 59 HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient 60 in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less 61 than DENOMINATOR for correct operation. If, in addition, the most 62 significant bit of DENOMINATOR must be 1, then the pre-processor symbol 63 UDIV_NEEDS_NORMALIZATION is defined to 1. 64 65 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, 66 denominator). Like udiv_qrnnd but the numbers are signed. The quotient 67 is rounded towards 0. 68 69 5) count_leading_zeros(count, x) counts the number of zero-bits from the 70 msb to the first nonzero bit in the UWtype X. This is the number of 71 steps X needs to be shifted left to set the msb. Undefined for X == 0, 72 unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value. 73 74 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts 75 from the least significant end. 76 77 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, 78 high_addend_2, low_addend_2) adds two UWtype integers, composed by 79 HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2 80 respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow 81 (i.e. carry out) is not stored anywhere, and is lost. 82 83 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend, 84 high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers, 85 composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and 86 LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE 87 and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, 88 and is lost. 89 90 If any of these macros are left undefined for a particular CPU, 91 C macros are used. */ 92 93/* The CPUs come in alphabetical order below. 94 95 Please add support for more CPUs here, or improve the current support 96 for the CPUs below! 97 (E.g. WE32100, IBM360.) */ 98 99#if defined (__GNUC__) && !defined (NO_ASM) 100 101/* We sometimes need to clobber "cc" with gcc2, but that would not be 102 understood by gcc1. Use cpp to avoid major code duplication. */ 103#if __GNUC__ < 2 104#define __CLOBBER_CC 105#define __AND_CLOBBER_CC 106#else /* __GNUC__ >= 2 */ 107#define __CLOBBER_CC : "cc" 108#define __AND_CLOBBER_CC , "cc" 109#endif /* __GNUC__ < 2 */ 110 111#if defined (__alpha) && W_TYPE_SIZE == 64 112#define umul_ppmm(ph, pl, m0, m1) \ 113 do { \ 114 UDItype __m0 = (m0), __m1 = (m1); \ 115 (ph) = __builtin_alpha_umulh (__m0, __m1); \ 116 (pl) = __m0 * __m1; \ 117 } while (0) 118#define UMUL_TIME 46 119#ifndef LONGLONG_STANDALONE 120#define udiv_qrnnd(q, r, n1, n0, d) \ 121 do { UDItype __r; \ 122 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ 123 (r) = __r; \ 124 } while (0) 125extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype); 126#define UDIV_TIME 220 127#endif /* LONGLONG_STANDALONE */ 128#ifdef __alpha_cix__ 129#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X)) 130#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X)) 131#define COUNT_LEADING_ZEROS_0 64 132#else 133#define count_leading_zeros(COUNT,X) \ 134 do { \ 135 UDItype __xr = (X), __t, __a; \ 136 __t = __builtin_alpha_cmpbge (0, __xr); \ 137 __a = __clz_tab[__t ^ 0xff] - 1; \ 138 __t = __builtin_alpha_extbl (__xr, __a); \ 139 (COUNT) = 64 - (__clz_tab[__t] + __a*8); \ 140 } while (0) 141#define count_trailing_zeros(COUNT,X) \ 142 do { \ 143 UDItype __xr = (X), __t, __a; \ 144 __t = __builtin_alpha_cmpbge (0, __xr); \ 145 __t = ~__t & -~__t; \ 146 __a = ((__t & 0xCC) != 0) * 2; \ 147 __a += ((__t & 0xF0) != 0) * 4; \ 148 __a += ((__t & 0xAA) != 0); \ 149 __t = __builtin_alpha_extbl (__xr, __a); \ 150 __a <<= 3; \ 151 __t &= -__t; \ 152 __a += ((__t & 0xCC) != 0) * 2; \ 153 __a += ((__t & 0xF0) != 0) * 4; \ 154 __a += ((__t & 0xAA) != 0); \ 155 (COUNT) = __a; \ 156 } while (0) 157#endif /* __alpha_cix__ */ 158#endif /* __alpha */ 159 160#if defined (__arc__) && W_TYPE_SIZE == 32 161#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 162 __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \ 163 : "=r" ((USItype) (sh)), \ 164 "=&r" ((USItype) (sl)) \ 165 : "%r" ((USItype) (ah)), \ 166 "rIJ" ((USItype) (bh)), \ 167 "%r" ((USItype) (al)), \ 168 "rIJ" ((USItype) (bl))) 169#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 170 __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \ 171 : "=r" ((USItype) (sh)), \ 172 "=&r" ((USItype) (sl)) \ 173 : "r" ((USItype) (ah)), \ 174 "rIJ" ((USItype) (bh)), \ 175 "r" ((USItype) (al)), \ 176 "rIJ" ((USItype) (bl))) 177/* Call libgcc routine. */ 178#define umul_ppmm(w1, w0, u, v) \ 179do { \ 180 DWunion __w; \ 181 __w.ll = __umulsidi3 (u, v); \ 182 w1 = __w.s.high; \ 183 w0 = __w.s.low; \ 184} while (0) 185#define __umulsidi3 __umulsidi3 186UDItype __umulsidi3 (USItype, USItype); 187#endif 188 189#if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32 190#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 191 __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \ 192 : "=r" ((USItype) (sh)), \ 193 "=&r" ((USItype) (sl)) \ 194 : "%r" ((USItype) (ah)), \ 195 "rI" ((USItype) (bh)), \ 196 "%r" ((USItype) (al)), \ 197 "rI" ((USItype) (bl)) __CLOBBER_CC) 198#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 199 __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \ 200 : "=r" ((USItype) (sh)), \ 201 "=&r" ((USItype) (sl)) \ 202 : "r" ((USItype) (ah)), \ 203 "rI" ((USItype) (bh)), \ 204 "r" ((USItype) (al)), \ 205 "rI" ((USItype) (bl)) __CLOBBER_CC) 206#define umul_ppmm(xh, xl, a, b) \ 207{register USItype __t0, __t1, __t2; \ 208 __asm__ ("/* Inlined umul_ppmm */\n" \ 209 " mov %2, %5, lsr #16\n" \ 210 " mov %0, %6, lsr #16\n" \ 211 " bic %3, %5, %2, lsl #16\n" \ 212 " bic %4, %6, %0, lsl #16\n" \ 213 " mul %1, %3, %4\n" \ 214 " mul %4, %2, %4\n" \ 215 " mul %3, %0, %3\n" \ 216 " mul %0, %2, %0\n" \ 217 " adds %3, %4, %3\n" \ 218 " addcs %0, %0, #65536\n" \ 219 " adds %1, %1, %3, lsl #16\n" \ 220 " adc %0, %0, %3, lsr #16" \ 221 : "=&r" ((USItype) (xh)), \ 222 "=r" ((USItype) (xl)), \ 223 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ 224 : "r" ((USItype) (a)), \ 225 "r" ((USItype) (b)) __CLOBBER_CC );} 226#define UMUL_TIME 20 227#define UDIV_TIME 100 228#endif /* __arm__ */ 229 230#if defined (__hppa) && W_TYPE_SIZE == 32 231#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 232 __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \ 233 : "=r" ((USItype) (sh)), \ 234 "=&r" ((USItype) (sl)) \ 235 : "%rM" ((USItype) (ah)), \ 236 "rM" ((USItype) (bh)), \ 237 "%rM" ((USItype) (al)), \ 238 "rM" ((USItype) (bl))) 239#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 240 __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \ 241 : "=r" ((USItype) (sh)), \ 242 "=&r" ((USItype) (sl)) \ 243 : "rM" ((USItype) (ah)), \ 244 "rM" ((USItype) (bh)), \ 245 "rM" ((USItype) (al)), \ 246 "rM" ((USItype) (bl))) 247#if defined (_PA_RISC1_1) 248#define umul_ppmm(w1, w0, u, v) \ 249 do { \ 250 union \ 251 { \ 252 UDItype __f; \ 253 struct {USItype __w1, __w0;} __w1w0; \ 254 } __t; \ 255 __asm__ ("xmpyu %1,%2,%0" \ 256 : "=x" (__t.__f) \ 257 : "x" ((USItype) (u)), \ 258 "x" ((USItype) (v))); \ 259 (w1) = __t.__w1w0.__w1; \ 260 (w0) = __t.__w1w0.__w0; \ 261 } while (0) 262#define UMUL_TIME 8 263#else 264#define UMUL_TIME 30 265#endif 266#define UDIV_TIME 40 267#define count_leading_zeros(count, x) \ 268 do { \ 269 USItype __tmp; \ 270 __asm__ ( \ 271 "ldi 1,%0\n" \ 272" extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \ 273" extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\ 274" ldo 16(%0),%0 ; Yes. Perform add.\n" \ 275" extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \ 276" extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\ 277" ldo 8(%0),%0 ; Yes. Perform add.\n" \ 278" extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \ 279" extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\ 280" ldo 4(%0),%0 ; Yes. Perform add.\n" \ 281" extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \ 282" extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\ 283" ldo 2(%0),%0 ; Yes. Perform add.\n" \ 284" extru %1,30,1,%1 ; Extract bit 1.\n" \ 285" sub %0,%1,%0 ; Subtract it.\n" \ 286 : "=r" (count), "=r" (__tmp) : "1" (x)); \ 287 } while (0) 288#endif 289 290#if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32 291#define smul_ppmm(xh, xl, m0, m1) \ 292 do { \ 293 union {DItype __ll; \ 294 struct {USItype __h, __l;} __i; \ 295 } __x; \ 296 __asm__ ("lr %N0,%1\n\tmr %0,%2" \ 297 : "=&r" (__x.__ll) \ 298 : "r" (m0), "r" (m1)); \ 299 (xh) = __x.__i.__h; (xl) = __x.__i.__l; \ 300 } while (0) 301#define sdiv_qrnnd(q, r, n1, n0, d) \ 302 do { \ 303 union {DItype __ll; \ 304 struct {USItype __h, __l;} __i; \ 305 } __x; \ 306 __x.__i.__h = n1; __x.__i.__l = n0; \ 307 __asm__ ("dr %0,%2" \ 308 : "=r" (__x.__ll) \ 309 : "0" (__x.__ll), "r" (d)); \ 310 (q) = __x.__i.__l; (r) = __x.__i.__h; \ 311 } while (0) 312#endif 313 314#if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32 315#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 316 __asm__ ("addl %5,%1\n\tadcl %3,%0" \ 317 : "=r" ((USItype) (sh)), \ 318 "=&r" ((USItype) (sl)) \ 319 : "%0" ((USItype) (ah)), \ 320 "g" ((USItype) (bh)), \ 321 "%1" ((USItype) (al)), \ 322 "g" ((USItype) (bl))) 323#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 324 __asm__ ("subl %5,%1\n\tsbbl %3,%0" \ 325 : "=r" (sh), \ 326 "=&r" (sl) \ 327 : "0" ((USItype) (ah)), \ 328 "g" ((USItype) (bh)), \ 329 "1" ((USItype) (al)), \ 330 "g" ((USItype) (bl))) 331#define umul_ppmm(w1, w0, u, v) \ 332 __asm__ ("mull %3" \ 333 : "=a" (w0), \ 334 "=d" (w1) \ 335 : "%0" ((USItype) (u)), \ 336 "rm" ((USItype) (v))) 337#define udiv_qrnnd(q, r, n1, n0, dv) \ 338 __asm__ ("divl %4" \ 339 : "=a" (q), \ 340 "=d" (r) \ 341 : "0" ((USItype) (n0)), \ 342 "1" ((USItype) (n1)), \ 343 "rm" ((USItype) (dv))) 344#define count_leading_zeros(count, x) \ 345 do { \ 346 USItype __cbtmp; \ 347 __asm__ ("bsrl %1,%0" \ 348 : "=r" (__cbtmp) : "rm" ((USItype) (x))); \ 349 (count) = __cbtmp ^ 31; \ 350 } while (0) 351#define count_trailing_zeros(count, x) \ 352 __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x))) 353#define UMUL_TIME 40 354#define UDIV_TIME 40 355#endif /* 80x86 */ 356 357#if defined (__i960__) && W_TYPE_SIZE == 32 358#define umul_ppmm(w1, w0, u, v) \ 359 ({union {UDItype __ll; \ 360 struct {USItype __l, __h;} __i; \ 361 } __xx; \ 362 __asm__ ("emul %2,%1,%0" \ 363 : "=d" (__xx.__ll) \ 364 : "%dI" ((USItype) (u)), \ 365 "dI" ((USItype) (v))); \ 366 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) 367#define __umulsidi3(u, v) \ 368 ({UDItype __w; \ 369 __asm__ ("emul %2,%1,%0" \ 370 : "=d" (__w) \ 371 : "%dI" ((USItype) (u)), \ 372 "dI" ((USItype) (v))); \ 373 __w; }) 374#endif /* __i960__ */ 375 376#if defined (__M32R__) && W_TYPE_SIZE == 32 377#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 378 /* The cmp clears the condition bit. */ \ 379 __asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \ 380 : "=r" ((USItype) (sh)), \ 381 "=&r" ((USItype) (sl)) \ 382 : "0" ((USItype) (ah)), \ 383 "r" ((USItype) (bh)), \ 384 "1" ((USItype) (al)), \ 385 "r" ((USItype) (bl)) \ 386 : "cbit") 387#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 388 /* The cmp clears the condition bit. */ \ 389 __asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \ 390 : "=r" ((USItype) (sh)), \ 391 "=&r" ((USItype) (sl)) \ 392 : "0" ((USItype) (ah)), \ 393 "r" ((USItype) (bh)), \ 394 "1" ((USItype) (al)), \ 395 "r" ((USItype) (bl)) \ 396 : "cbit") 397#endif /* __M32R__ */ 398 399#if defined (__mc68000__) && W_TYPE_SIZE == 32 400#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 401 __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \ 402 : "=d" ((USItype) (sh)), \ 403 "=&d" ((USItype) (sl)) \ 404 : "%0" ((USItype) (ah)), \ 405 "d" ((USItype) (bh)), \ 406 "%1" ((USItype) (al)), \ 407 "g" ((USItype) (bl))) 408#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 409 __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \ 410 : "=d" ((USItype) (sh)), \ 411 "=&d" ((USItype) (sl)) \ 412 : "0" ((USItype) (ah)), \ 413 "d" ((USItype) (bh)), \ 414 "1" ((USItype) (al)), \ 415 "g" ((USItype) (bl))) 416 417/* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */ 418#if (defined (__mc68020__) && !defined (__mc68060__)) 419#define umul_ppmm(w1, w0, u, v) \ 420 __asm__ ("mulu%.l %3,%1:%0" \ 421 : "=d" ((USItype) (w0)), \ 422 "=d" ((USItype) (w1)) \ 423 : "%0" ((USItype) (u)), \ 424 "dmi" ((USItype) (v))) 425#define UMUL_TIME 45 426#define udiv_qrnnd(q, r, n1, n0, d) \ 427 __asm__ ("divu%.l %4,%1:%0" \ 428 : "=d" ((USItype) (q)), \ 429 "=d" ((USItype) (r)) \ 430 : "0" ((USItype) (n0)), \ 431 "1" ((USItype) (n1)), \ 432 "dmi" ((USItype) (d))) 433#define UDIV_TIME 90 434#define sdiv_qrnnd(q, r, n1, n0, d) \ 435 __asm__ ("divs%.l %4,%1:%0" \ 436 : "=d" ((USItype) (q)), \ 437 "=d" ((USItype) (r)) \ 438 : "0" ((USItype) (n0)), \ 439 "1" ((USItype) (n1)), \ 440 "dmi" ((USItype) (d))) 441 442#elif defined (__mcoldfire__) /* not mc68020 */ 443 444#define umul_ppmm(xh, xl, a, b) \ 445 __asm__ ("| Inlined umul_ppmm\n" \ 446 " move%.l %2,%/d0\n" \ 447 " move%.l %3,%/d1\n" \ 448 " move%.l %/d0,%/d2\n" \ 449 " swap %/d0\n" \ 450 " move%.l %/d1,%/d3\n" \ 451 " swap %/d1\n" \ 452 " move%.w %/d2,%/d4\n" \ 453 " mulu %/d3,%/d4\n" \ 454 " mulu %/d1,%/d2\n" \ 455 " mulu %/d0,%/d3\n" \ 456 " mulu %/d0,%/d1\n" \ 457 " move%.l %/d4,%/d0\n" \ 458 " clr%.w %/d0\n" \ 459 " swap %/d0\n" \ 460 " add%.l %/d0,%/d2\n" \ 461 " add%.l %/d3,%/d2\n" \ 462 " jcc 1f\n" \ 463 " add%.l %#65536,%/d1\n" \ 464 "1: swap %/d2\n" \ 465 " moveq %#0,%/d0\n" \ 466 " move%.w %/d2,%/d0\n" \ 467 " move%.w %/d4,%/d2\n" \ 468 " move%.l %/d2,%1\n" \ 469 " add%.l %/d1,%/d0\n" \ 470 " move%.l %/d0,%0" \ 471 : "=g" ((USItype) (xh)), \ 472 "=g" ((USItype) (xl)) \ 473 : "g" ((USItype) (a)), \ 474 "g" ((USItype) (b)) \ 475 : "d0", "d1", "d2", "d3", "d4") 476#define UMUL_TIME 100 477#define UDIV_TIME 400 478#else /* not ColdFire */ 479/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */ 480#define umul_ppmm(xh, xl, a, b) \ 481 __asm__ ("| Inlined umul_ppmm\n" \ 482 " move%.l %2,%/d0\n" \ 483 " move%.l %3,%/d1\n" \ 484 " move%.l %/d0,%/d2\n" \ 485 " swap %/d0\n" \ 486 " move%.l %/d1,%/d3\n" \ 487 " swap %/d1\n" \ 488 " move%.w %/d2,%/d4\n" \ 489 " mulu %/d3,%/d4\n" \ 490 " mulu %/d1,%/d2\n" \ 491 " mulu %/d0,%/d3\n" \ 492 " mulu %/d0,%/d1\n" \ 493 " move%.l %/d4,%/d0\n" \ 494 " eor%.w %/d0,%/d0\n" \ 495 " swap %/d0\n" \ 496 " add%.l %/d0,%/d2\n" \ 497 " add%.l %/d3,%/d2\n" \ 498 " jcc 1f\n" \ 499 " add%.l %#65536,%/d1\n" \ 500 "1: swap %/d2\n" \ 501 " moveq %#0,%/d0\n" \ 502 " move%.w %/d2,%/d0\n" \ 503 " move%.w %/d4,%/d2\n" \ 504 " move%.l %/d2,%1\n" \ 505 " add%.l %/d1,%/d0\n" \ 506 " move%.l %/d0,%0" \ 507 : "=g" ((USItype) (xh)), \ 508 "=g" ((USItype) (xl)) \ 509 : "g" ((USItype) (a)), \ 510 "g" ((USItype) (b)) \ 511 : "d0", "d1", "d2", "d3", "d4") 512#define UMUL_TIME 100 513#define UDIV_TIME 400 514 515#endif /* not mc68020 */ 516 517/* The '020, '030, '040 and '060 have bitfield insns. 518 cpu32 disguises as a 68020, but lacks them. */ 519#if defined (__mc68020__) && !defined (__mcpu32__) 520#define count_leading_zeros(count, x) \ 521 __asm__ ("bfffo %1{%b2:%b2},%0" \ 522 : "=d" ((USItype) (count)) \ 523 : "od" ((USItype) (x)), "n" (0)) 524#endif 525#endif /* mc68000 */ 526 527#if defined (__m88000__) && W_TYPE_SIZE == 32 528#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 529 __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \ 530 : "=r" ((USItype) (sh)), \ 531 "=&r" ((USItype) (sl)) \ 532 : "%rJ" ((USItype) (ah)), \ 533 "rJ" ((USItype) (bh)), \ 534 "%rJ" ((USItype) (al)), \ 535 "rJ" ((USItype) (bl))) 536#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 537 __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \ 538 : "=r" ((USItype) (sh)), \ 539 "=&r" ((USItype) (sl)) \ 540 : "rJ" ((USItype) (ah)), \ 541 "rJ" ((USItype) (bh)), \ 542 "rJ" ((USItype) (al)), \ 543 "rJ" ((USItype) (bl))) 544#define count_leading_zeros(count, x) \ 545 do { \ 546 USItype __cbtmp; \ 547 __asm__ ("ff1 %0,%1" \ 548 : "=r" (__cbtmp) \ 549 : "r" ((USItype) (x))); \ 550 (count) = __cbtmp ^ 31; \ 551 } while (0) 552#define COUNT_LEADING_ZEROS_0 63 /* sic */ 553#if defined (__mc88110__) 554#define umul_ppmm(wh, wl, u, v) \ 555 do { \ 556 union {UDItype __ll; \ 557 struct {USItype __h, __l;} __i; \ 558 } __xx; \ 559 __asm__ ("mulu.d %0,%1,%2" \ 560 : "=r" (__xx.__ll) \ 561 : "r" ((USItype) (u)), \ 562 "r" ((USItype) (v))); \ 563 (wh) = __xx.__i.__h; \ 564 (wl) = __xx.__i.__l; \ 565 } while (0) 566#define udiv_qrnnd(q, r, n1, n0, d) \ 567 ({union {UDItype __ll; \ 568 struct {USItype __h, __l;} __i; \ 569 } __xx; \ 570 USItype __q; \ 571 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \ 572 __asm__ ("divu.d %0,%1,%2" \ 573 : "=r" (__q) \ 574 : "r" (__xx.__ll), \ 575 "r" ((USItype) (d))); \ 576 (r) = (n0) - __q * (d); (q) = __q; }) 577#define UMUL_TIME 5 578#define UDIV_TIME 25 579#else 580#define UMUL_TIME 17 581#define UDIV_TIME 150 582#endif /* __mc88110__ */ 583#endif /* __m88000__ */ 584 585#if defined (__mips__) && W_TYPE_SIZE == 32 586#define umul_ppmm(w1, w0, u, v) \ 587 __asm__ ("multu %2,%3" \ 588 : "=l" ((USItype) (w0)), \ 589 "=h" ((USItype) (w1)) \ 590 : "d" ((USItype) (u)), \ 591 "d" ((USItype) (v))) 592#define UMUL_TIME 10 593#define UDIV_TIME 100 594#endif /* __mips__ */ 595 596#if defined (__ns32000__) && W_TYPE_SIZE == 32 597#define umul_ppmm(w1, w0, u, v) \ 598 ({union {UDItype __ll; \ 599 struct {USItype __l, __h;} __i; \ 600 } __xx; \ 601 __asm__ ("meid %2,%0" \ 602 : "=g" (__xx.__ll) \ 603 : "%0" ((USItype) (u)), \ 604 "g" ((USItype) (v))); \ 605 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;}) 606#define __umulsidi3(u, v) \ 607 ({UDItype __w; \ 608 __asm__ ("meid %2,%0" \ 609 : "=g" (__w) \ 610 : "%0" ((USItype) (u)), \ 611 "g" ((USItype) (v))); \ 612 __w; }) 613#define udiv_qrnnd(q, r, n1, n0, d) \ 614 ({union {UDItype __ll; \ 615 struct {USItype __l, __h;} __i; \ 616 } __xx; \ 617 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \ 618 __asm__ ("deid %2,%0" \ 619 : "=g" (__xx.__ll) \ 620 : "0" (__xx.__ll), \ 621 "g" ((USItype) (d))); \ 622 (r) = __xx.__i.__l; (q) = __xx.__i.__h; }) 623#define count_trailing_zeros(count,x) \ 624 do { \ 625 __asm__ ("ffsd %2,%0" \ 626 : "=r" ((USItype) (count)) \ 627 : "0" ((USItype) 0), \ 628 "r" ((USItype) (x))); \ 629 } while (0) 630#endif /* __ns32000__ */ 631 632/* FIXME: We should test _IBMR2 here when we add assembly support for the 633 system vendor compilers. 634 FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good 635 enough, since that hits ARM and m68k too. */ 636#if (defined (_ARCH_PPC) /* AIX */ \ 637 || defined (_ARCH_PWR) /* AIX */ \ 638 || defined (_ARCH_COM) /* AIX */ \ 639 || defined (__powerpc__) /* gcc */ \ 640 || defined (__POWERPC__) /* BEOS */ \ 641 || defined (__ppc__) /* Darwin */ \ 642 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \ 643 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \ 644 && CPU_FAMILY == PPC) \ 645 ) && W_TYPE_SIZE == 32 646#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 647 do { \ 648 if (__builtin_constant_p (bh) && (bh) == 0) \ 649 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \ 650 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\ 651 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \ 652 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \ 653 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\ 654 else \ 655 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \ 656 : "=r" (sh), "=&r" (sl) \ 657 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \ 658 } while (0) 659#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 660 do { \ 661 if (__builtin_constant_p (ah) && (ah) == 0) \ 662 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \ 663 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ 664 else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \ 665 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \ 666 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ 667 else if (__builtin_constant_p (bh) && (bh) == 0) \ 668 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \ 669 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ 670 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \ 671 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \ 672 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ 673 else \ 674 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \ 675 : "=r" (sh), "=&r" (sl) \ 676 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \ 677 } while (0) 678#define count_leading_zeros(count, x) \ 679 __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x)) 680#define COUNT_LEADING_ZEROS_0 32 681#if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \ 682 || defined (__ppc__) \ 683 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \ 684 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \ 685 && CPU_FAMILY == PPC) 686#define umul_ppmm(ph, pl, m0, m1) \ 687 do { \ 688 USItype __m0 = (m0), __m1 = (m1); \ 689 __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ 690 (pl) = __m0 * __m1; \ 691 } while (0) 692#define UMUL_TIME 15 693#define smul_ppmm(ph, pl, m0, m1) \ 694 do { \ 695 SItype __m0 = (m0), __m1 = (m1); \ 696 __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ 697 (pl) = __m0 * __m1; \ 698 } while (0) 699#define SMUL_TIME 14 700#define UDIV_TIME 120 701#elif defined (_ARCH_PWR) 702#define UMUL_TIME 8 703#define smul_ppmm(xh, xl, m0, m1) \ 704 __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1)) 705#define SMUL_TIME 4 706#define sdiv_qrnnd(q, r, nh, nl, d) \ 707 __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d)) 708#define UDIV_TIME 100 709#endif 710#endif /* 32-bit POWER architecture variants. */ 711 712/* We should test _IBMR2 here when we add assembly support for the system 713 vendor compilers. */ 714#if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64 715#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 716 do { \ 717 if (__builtin_constant_p (bh) && (bh) == 0) \ 718 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \ 719 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\ 720 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \ 721 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \ 722 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\ 723 else \ 724 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \ 725 : "=r" (sh), "=&r" (sl) \ 726 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \ 727 } while (0) 728#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 729 do { \ 730 if (__builtin_constant_p (ah) && (ah) == 0) \ 731 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \ 732 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ 733 else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \ 734 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \ 735 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\ 736 else if (__builtin_constant_p (bh) && (bh) == 0) \ 737 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \ 738 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ 739 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \ 740 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \ 741 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\ 742 else \ 743 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \ 744 : "=r" (sh), "=&r" (sl) \ 745 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \ 746 } while (0) 747#define count_leading_zeros(count, x) \ 748 __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x)) 749#define COUNT_LEADING_ZEROS_0 64 750#define umul_ppmm(ph, pl, m0, m1) \ 751 do { \ 752 UDItype __m0 = (m0), __m1 = (m1); \ 753 __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ 754 (pl) = __m0 * __m1; \ 755 } while (0) 756#define UMUL_TIME 15 757#define smul_ppmm(ph, pl, m0, m1) \ 758 do { \ 759 DItype __m0 = (m0), __m1 = (m1); \ 760 __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ 761 (pl) = __m0 * __m1; \ 762 } while (0) 763#define SMUL_TIME 14 /* ??? */ 764#define UDIV_TIME 120 /* ??? */ 765#endif /* 64-bit PowerPC. */ 766 767#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32 768#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 769 __asm__ ("a %1,%5\n\tae %0,%3" \ 770 : "=r" ((USItype) (sh)), \ 771 "=&r" ((USItype) (sl)) \ 772 : "%0" ((USItype) (ah)), \ 773 "r" ((USItype) (bh)), \ 774 "%1" ((USItype) (al)), \ 775 "r" ((USItype) (bl))) 776#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 777 __asm__ ("s %1,%5\n\tse %0,%3" \ 778 : "=r" ((USItype) (sh)), \ 779 "=&r" ((USItype) (sl)) \ 780 : "0" ((USItype) (ah)), \ 781 "r" ((USItype) (bh)), \ 782 "1" ((USItype) (al)), \ 783 "r" ((USItype) (bl))) 784#define umul_ppmm(ph, pl, m0, m1) \ 785 do { \ 786 USItype __m0 = (m0), __m1 = (m1); \ 787 __asm__ ( \ 788 "s r2,r2\n" \ 789" mts r10,%2\n" \ 790" m r2,%3\n" \ 791" m r2,%3\n" \ 792" m r2,%3\n" \ 793" m r2,%3\n" \ 794" m r2,%3\n" \ 795" m r2,%3\n" \ 796" m r2,%3\n" \ 797" m r2,%3\n" \ 798" m r2,%3\n" \ 799" m r2,%3\n" \ 800" m r2,%3\n" \ 801" m r2,%3\n" \ 802" m r2,%3\n" \ 803" m r2,%3\n" \ 804" m r2,%3\n" \ 805" m r2,%3\n" \ 806" cas %0,r2,r0\n" \ 807" mfs r10,%1" \ 808 : "=r" ((USItype) (ph)), \ 809 "=r" ((USItype) (pl)) \ 810 : "%r" (__m0), \ 811 "r" (__m1) \ 812 : "r2"); \ 813 (ph) += ((((SItype) __m0 >> 31) & __m1) \ 814 + (((SItype) __m1 >> 31) & __m0)); \ 815 } while (0) 816#define UMUL_TIME 20 817#define UDIV_TIME 200 818#define count_leading_zeros(count, x) \ 819 do { \ 820 if ((x) >= 0x10000) \ 821 __asm__ ("clz %0,%1" \ 822 : "=r" ((USItype) (count)) \ 823 : "r" ((USItype) (x) >> 16)); \ 824 else \ 825 { \ 826 __asm__ ("clz %0,%1" \ 827 : "=r" ((USItype) (count)) \ 828 : "r" ((USItype) (x))); \ 829 (count) += 16; \ 830 } \ 831 } while (0) 832#endif 833 834#if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32 835#ifndef __sh1__ 836#define umul_ppmm(w1, w0, u, v) \ 837 __asm__ ( \ 838 "dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \ 839 : "=r<" ((USItype)(w1)), \ 840 "=r<" ((USItype)(w0)) \ 841 : "r" ((USItype)(u)), \ 842 "r" ((USItype)(v)) \ 843 : "macl", "mach") 844#define UMUL_TIME 5 845#endif 846 847/* This is the same algorithm as __udiv_qrnnd_c. */ 848#define UDIV_NEEDS_NORMALIZATION 1 849 850#define udiv_qrnnd(q, r, n1, n0, d) \ 851 do { \ 852 extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \ 853 __attribute__ ((visibility ("hidden"))); \ 854 /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \ 855 __asm__ ( \ 856 "mov%M4 %4,r5\n" \ 857" swap.w %3,r4\n" \ 858" swap.w r5,r6\n" \ 859" jsr @%5\n" \ 860" shll16 r6\n" \ 861" swap.w r4,r4\n" \ 862" jsr @%5\n" \ 863" swap.w r1,%0\n" \ 864" or r1,%0" \ 865 : "=r" (q), "=&z" (r) \ 866 : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \ 867 : "r1", "r2", "r4", "r5", "r6", "pr"); \ 868 } while (0) 869 870#define UDIV_TIME 80 871 872#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 873 __asm__ ("clrt;subc %5,%1; subc %4,%0" \ 874 : "=r" (sh), "=r" (sl) \ 875 : "0" (ah), "1" (al), "r" (bh), "r" (bl)) 876 877#endif /* __sh__ */ 878 879#if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32 880#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v) 881#define count_leading_zeros(count, x) \ 882 do \ 883 { \ 884 UDItype x_ = (USItype)(x); \ 885 SItype c_; \ 886 \ 887 __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \ 888 (count) = c_ - 31; \ 889 } \ 890 while (0) 891#define COUNT_LEADING_ZEROS_0 32 892#endif 893 894#if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \ 895 && W_TYPE_SIZE == 32 896#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 897 __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \ 898 : "=r" ((USItype) (sh)), \ 899 "=&r" ((USItype) (sl)) \ 900 : "%rJ" ((USItype) (ah)), \ 901 "rI" ((USItype) (bh)), \ 902 "%rJ" ((USItype) (al)), \ 903 "rI" ((USItype) (bl)) \ 904 __CLOBBER_CC) 905#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 906 __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \ 907 : "=r" ((USItype) (sh)), \ 908 "=&r" ((USItype) (sl)) \ 909 : "rJ" ((USItype) (ah)), \ 910 "rI" ((USItype) (bh)), \ 911 "rJ" ((USItype) (al)), \ 912 "rI" ((USItype) (bl)) \ 913 __CLOBBER_CC) 914#if defined (__sparc_v8__) 915#define umul_ppmm(w1, w0, u, v) \ 916 __asm__ ("umul %2,%3,%1;rd %%y,%0" \ 917 : "=r" ((USItype) (w1)), \ 918 "=r" ((USItype) (w0)) \ 919 : "r" ((USItype) (u)), \ 920 "r" ((USItype) (v))) 921#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \ 922 __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\ 923 : "=&r" ((USItype) (__q)), \ 924 "=&r" ((USItype) (__r)) \ 925 : "r" ((USItype) (__n1)), \ 926 "r" ((USItype) (__n0)), \ 927 "r" ((USItype) (__d))) 928#else 929#if defined (__sparclite__) 930/* This has hardware multiply but not divide. It also has two additional 931 instructions scan (ffs from high bit) and divscc. */ 932#define umul_ppmm(w1, w0, u, v) \ 933 __asm__ ("umul %2,%3,%1;rd %%y,%0" \ 934 : "=r" ((USItype) (w1)), \ 935 "=r" ((USItype) (w0)) \ 936 : "r" ((USItype) (u)), \ 937 "r" ((USItype) (v))) 938#define udiv_qrnnd(q, r, n1, n0, d) \ 939 __asm__ ("! Inlined udiv_qrnnd\n" \ 940" wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \ 941" tst %%g0\n" \ 942" divscc %3,%4,%%g1\n" \ 943" divscc %%g1,%4,%%g1\n" \ 944" divscc %%g1,%4,%%g1\n" \ 945" divscc %%g1,%4,%%g1\n" \ 946" divscc %%g1,%4,%%g1\n" \ 947" divscc %%g1,%4,%%g1\n" \ 948" divscc %%g1,%4,%%g1\n" \ 949" divscc %%g1,%4,%%g1\n" \ 950" divscc %%g1,%4,%%g1\n" \ 951" divscc %%g1,%4,%%g1\n" \ 952" divscc %%g1,%4,%%g1\n" \ 953" divscc %%g1,%4,%%g1\n" \ 954" divscc %%g1,%4,%%g1\n" \ 955" divscc %%g1,%4,%%g1\n" \ 956" divscc %%g1,%4,%%g1\n" \ 957" divscc %%g1,%4,%%g1\n" \ 958" divscc %%g1,%4,%%g1\n" \ 959" divscc %%g1,%4,%%g1\n" \ 960" divscc %%g1,%4,%%g1\n" \ 961" divscc %%g1,%4,%%g1\n" \ 962" divscc %%g1,%4,%%g1\n" \ 963" divscc %%g1,%4,%%g1\n" \ 964" divscc %%g1,%4,%%g1\n" \ 965" divscc %%g1,%4,%%g1\n" \ 966" divscc %%g1,%4,%%g1\n" \ 967" divscc %%g1,%4,%%g1\n" \ 968" divscc %%g1,%4,%%g1\n" \ 969" divscc %%g1,%4,%%g1\n" \ 970" divscc %%g1,%4,%%g1\n" \ 971" divscc %%g1,%4,%%g1\n" \ 972" divscc %%g1,%4,%%g1\n" \ 973" divscc %%g1,%4,%0\n" \ 974" rd %%y,%1\n" \ 975" bl,a 1f\n" \ 976" add %1,%4,%1\n" \ 977"1: ! End of inline udiv_qrnnd" \ 978 : "=r" ((USItype) (q)), \ 979 "=r" ((USItype) (r)) \ 980 : "r" ((USItype) (n1)), \ 981 "r" ((USItype) (n0)), \ 982 "rI" ((USItype) (d)) \ 983 : "g1" __AND_CLOBBER_CC) 984#define UDIV_TIME 37 985#define count_leading_zeros(count, x) \ 986 do { \ 987 __asm__ ("scan %1,1,%0" \ 988 : "=r" ((USItype) (count)) \ 989 : "r" ((USItype) (x))); \ 990 } while (0) 991/* Early sparclites return 63 for an argument of 0, but they warn that future 992 implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0 993 undefined. */ 994#else 995/* SPARC without integer multiplication and divide instructions. 996 (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */ 997#define umul_ppmm(w1, w0, u, v) \ 998 __asm__ ("! Inlined umul_ppmm\n" \ 999" wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\ 1000" sra %3,31,%%o5 ! Don't move this insn\n" \ 1001" and %2,%%o5,%%o5 ! Don't move this insn\n" \ 1002" andcc %%g0,0,%%g1 ! Don't move this insn\n" \ 1003" mulscc %%g1,%3,%%g1\n" \ 1004" mulscc %%g1,%3,%%g1\n" \ 1005" mulscc %%g1,%3,%%g1\n" \ 1006" mulscc %%g1,%3,%%g1\n" \ 1007" mulscc %%g1,%3,%%g1\n" \ 1008" mulscc %%g1,%3,%%g1\n" \ 1009" mulscc %%g1,%3,%%g1\n" \ 1010" mulscc %%g1,%3,%%g1\n" \ 1011" mulscc %%g1,%3,%%g1\n" \ 1012" mulscc %%g1,%3,%%g1\n" \ 1013" mulscc %%g1,%3,%%g1\n" \ 1014" mulscc %%g1,%3,%%g1\n" \ 1015" mulscc %%g1,%3,%%g1\n" \ 1016" mulscc %%g1,%3,%%g1\n" \ 1017" mulscc %%g1,%3,%%g1\n" \ 1018" mulscc %%g1,%3,%%g1\n" \ 1019" mulscc %%g1,%3,%%g1\n" \ 1020" mulscc %%g1,%3,%%g1\n" \ 1021" mulscc %%g1,%3,%%g1\n" \ 1022" mulscc %%g1,%3,%%g1\n" \ 1023" mulscc %%g1,%3,%%g1\n" \ 1024" mulscc %%g1,%3,%%g1\n" \ 1025" mulscc %%g1,%3,%%g1\n" \ 1026" mulscc %%g1,%3,%%g1\n" \ 1027" mulscc %%g1,%3,%%g1\n" \ 1028" mulscc %%g1,%3,%%g1\n" \ 1029" mulscc %%g1,%3,%%g1\n" \ 1030" mulscc %%g1,%3,%%g1\n" \ 1031" mulscc %%g1,%3,%%g1\n" \ 1032" mulscc %%g1,%3,%%g1\n" \ 1033" mulscc %%g1,%3,%%g1\n" \ 1034" mulscc %%g1,%3,%%g1\n" \ 1035" mulscc %%g1,0,%%g1\n" \ 1036" add %%g1,%%o5,%0\n" \ 1037" rd %%y,%1" \ 1038 : "=r" ((USItype) (w1)), \ 1039 "=r" ((USItype) (w0)) \ 1040 : "%rI" ((USItype) (u)), \ 1041 "r" ((USItype) (v)) \ 1042 : "g1", "o5" __AND_CLOBBER_CC) 1043#define UMUL_TIME 39 /* 39 instructions */ 1044/* It's quite necessary to add this much assembler for the sparc. 1045 The default udiv_qrnnd (in C) is more than 10 times slower! */ 1046#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \ 1047 __asm__ ("! Inlined udiv_qrnnd\n" \ 1048" mov 32,%%g1\n" \ 1049" subcc %1,%2,%%g0\n" \ 1050"1: bcs 5f\n" \ 1051" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \ 1052" sub %1,%2,%1 ! this kills msb of n\n" \ 1053" addx %1,%1,%1 ! so this can't give carry\n" \ 1054" subcc %%g1,1,%%g1\n" \ 1055"2: bne 1b\n" \ 1056" subcc %1,%2,%%g0\n" \ 1057" bcs 3f\n" \ 1058" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \ 1059" b 3f\n" \ 1060" sub %1,%2,%1 ! this kills msb of n\n" \ 1061"4: sub %1,%2,%1\n" \ 1062"5: addxcc %1,%1,%1\n" \ 1063" bcc 2b\n" \ 1064" subcc %%g1,1,%%g1\n" \ 1065"! Got carry from n. Subtract next step to cancel this carry.\n" \ 1066" bne 4b\n" \ 1067" addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \ 1068" sub %1,%2,%1\n" \ 1069"3: xnor %0,0,%0\n" \ 1070" ! End of inline udiv_qrnnd" \ 1071 : "=&r" ((USItype) (__q)), \ 1072 "=&r" ((USItype) (__r)) \ 1073 : "r" ((USItype) (__d)), \ 1074 "1" ((USItype) (__n1)), \ 1075 "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC) 1076#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */ 1077#endif /* __sparclite__ */ 1078#endif /* __sparc_v8__ */ 1079#endif /* sparc32 */ 1080 1081#if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \ 1082 && W_TYPE_SIZE == 64 1083#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 1084 __asm__ ("addcc %r4,%5,%1\n\t" \ 1085 "add %r2,%3,%0\n\t" \ 1086 "bcs,a,pn %%xcc, 1f\n\t" \ 1087 "add %0, 1, %0\n" \ 1088 "1:" \ 1089 : "=r" ((UDItype)(sh)), \ 1090 "=&r" ((UDItype)(sl)) \ 1091 : "%rJ" ((UDItype)(ah)), \ 1092 "rI" ((UDItype)(bh)), \ 1093 "%rJ" ((UDItype)(al)), \ 1094 "rI" ((UDItype)(bl)) \ 1095 __CLOBBER_CC) 1096 1097#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 1098 __asm__ ("subcc %r4,%5,%1\n\t" \ 1099 "sub %r2,%3,%0\n\t" \ 1100 "bcs,a,pn %%xcc, 1f\n\t" \ 1101 "sub %0, 1, %0\n\t" \ 1102 "1:" \ 1103 : "=r" ((UDItype)(sh)), \ 1104 "=&r" ((UDItype)(sl)) \ 1105 : "rJ" ((UDItype)(ah)), \ 1106 "rI" ((UDItype)(bh)), \ 1107 "rJ" ((UDItype)(al)), \ 1108 "rI" ((UDItype)(bl)) \ 1109 __CLOBBER_CC) 1110 1111#define umul_ppmm(wh, wl, u, v) \ 1112 do { \ 1113 UDItype tmp1, tmp2, tmp3, tmp4; \ 1114 __asm__ __volatile__ ( \ 1115 "srl %7,0,%3\n\t" \ 1116 "mulx %3,%6,%1\n\t" \ 1117 "srlx %6,32,%2\n\t" \ 1118 "mulx %2,%3,%4\n\t" \ 1119 "sllx %4,32,%5\n\t" \ 1120 "srl %6,0,%3\n\t" \ 1121 "sub %1,%5,%5\n\t" \ 1122 "srlx %5,32,%5\n\t" \ 1123 "addcc %4,%5,%4\n\t" \ 1124 "srlx %7,32,%5\n\t" \ 1125 "mulx %3,%5,%3\n\t" \ 1126 "mulx %2,%5,%5\n\t" \ 1127 "sethi %%hi(0x80000000),%2\n\t" \ 1128 "addcc %4,%3,%4\n\t" \ 1129 "srlx %4,32,%4\n\t" \ 1130 "add %2,%2,%2\n\t" \ 1131 "movcc %%xcc,%%g0,%2\n\t" \ 1132 "addcc %5,%4,%5\n\t" \ 1133 "sllx %3,32,%3\n\t" \ 1134 "add %1,%3,%1\n\t" \ 1135 "add %5,%2,%0" \ 1136 : "=r" ((UDItype)(wh)), \ 1137 "=&r" ((UDItype)(wl)), \ 1138 "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \ 1139 : "r" ((UDItype)(u)), \ 1140 "r" ((UDItype)(v)) \ 1141 __CLOBBER_CC); \ 1142 } while (0) 1143#define UMUL_TIME 96 1144#define UDIV_TIME 230 1145#endif /* sparc64 */ 1146 1147#if defined (__vax__) && W_TYPE_SIZE == 32 1148#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 1149 __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \ 1150 : "=g" ((USItype) (sh)), \ 1151 "=&g" ((USItype) (sl)) \ 1152 : "%0" ((USItype) (ah)), \ 1153 "g" ((USItype) (bh)), \ 1154 "%1" ((USItype) (al)), \ 1155 "g" ((USItype) (bl))) 1156#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 1157 __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \ 1158 : "=g" ((USItype) (sh)), \ 1159 "=&g" ((USItype) (sl)) \ 1160 : "0" ((USItype) (ah)), \ 1161 "g" ((USItype) (bh)), \ 1162 "1" ((USItype) (al)), \ 1163 "g" ((USItype) (bl))) 1164#define umul_ppmm(xh, xl, m0, m1) \ 1165 do { \ 1166 union { \ 1167 UDItype __ll; \ 1168 struct {USItype __l, __h;} __i; \ 1169 } __xx; \ 1170 USItype __m0 = (m0), __m1 = (m1); \ 1171 __asm__ ("emul %1,%2,$0,%0" \ 1172 : "=r" (__xx.__ll) \ 1173 : "g" (__m0), \ 1174 "g" (__m1)); \ 1175 (xh) = __xx.__i.__h; \ 1176 (xl) = __xx.__i.__l; \ 1177 (xh) += ((((SItype) __m0 >> 31) & __m1) \ 1178 + (((SItype) __m1 >> 31) & __m0)); \ 1179 } while (0) 1180#define sdiv_qrnnd(q, r, n1, n0, d) \ 1181 do { \ 1182 union {DItype __ll; \ 1183 struct {SItype __l, __h;} __i; \ 1184 } __xx; \ 1185 __xx.__i.__h = n1; __xx.__i.__l = n0; \ 1186 __asm__ ("ediv %3,%2,%0,%1" \ 1187 : "=g" (q), "=g" (r) \ 1188 : "g" (__xx.__ll), "g" (d)); \ 1189 } while (0) 1190#endif /* __vax__ */ 1191 1192#if defined (__z8000__) && W_TYPE_SIZE == 16 1193#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 1194 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \ 1195 : "=r" ((unsigned int)(sh)), \ 1196 "=&r" ((unsigned int)(sl)) \ 1197 : "%0" ((unsigned int)(ah)), \ 1198 "r" ((unsigned int)(bh)), \ 1199 "%1" ((unsigned int)(al)), \ 1200 "rQR" ((unsigned int)(bl))) 1201#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 1202 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \ 1203 : "=r" ((unsigned int)(sh)), \ 1204 "=&r" ((unsigned int)(sl)) \ 1205 : "0" ((unsigned int)(ah)), \ 1206 "r" ((unsigned int)(bh)), \ 1207 "1" ((unsigned int)(al)), \ 1208 "rQR" ((unsigned int)(bl))) 1209#define umul_ppmm(xh, xl, m0, m1) \ 1210 do { \ 1211 union {long int __ll; \ 1212 struct {unsigned int __h, __l;} __i; \ 1213 } __xx; \ 1214 unsigned int __m0 = (m0), __m1 = (m1); \ 1215 __asm__ ("mult %S0,%H3" \ 1216 : "=r" (__xx.__i.__h), \ 1217 "=r" (__xx.__i.__l) \ 1218 : "%1" (__m0), \ 1219 "rQR" (__m1)); \ 1220 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \ 1221 (xh) += ((((signed int) __m0 >> 15) & __m1) \ 1222 + (((signed int) __m1 >> 15) & __m0)); \ 1223 } while (0) 1224#endif /* __z8000__ */ 1225 1226#endif /* __GNUC__ */ 1227 1228/* If this machine has no inline assembler, use C macros. */ 1229 1230#if !defined (add_ssaaaa) 1231#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 1232 do { \ 1233 UWtype __x; \ 1234 __x = (al) + (bl); \ 1235 (sh) = (ah) + (bh) + (__x < (al)); \ 1236 (sl) = __x; \ 1237 } while (0) 1238#endif 1239 1240#if !defined (sub_ddmmss) 1241#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 1242 do { \ 1243 UWtype __x; \ 1244 __x = (al) - (bl); \ 1245 (sh) = (ah) - (bh) - (__x > (al)); \ 1246 (sl) = __x; \ 1247 } while (0) 1248#endif 1249 1250/* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of 1251 smul_ppmm. */ 1252#if !defined (umul_ppmm) && defined (smul_ppmm) 1253#define umul_ppmm(w1, w0, u, v) \ 1254 do { \ 1255 UWtype __w1; \ 1256 UWtype __xm0 = (u), __xm1 = (v); \ 1257 smul_ppmm (__w1, w0, __xm0, __xm1); \ 1258 (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \ 1259 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \ 1260 } while (0) 1261#endif 1262 1263/* If we still don't have umul_ppmm, define it using plain C. */ 1264#if !defined (umul_ppmm) 1265#define umul_ppmm(w1, w0, u, v) \ 1266 do { \ 1267 UWtype __x0, __x1, __x2, __x3; \ 1268 UHWtype __ul, __vl, __uh, __vh; \ 1269 \ 1270 __ul = __ll_lowpart (u); \ 1271 __uh = __ll_highpart (u); \ 1272 __vl = __ll_lowpart (v); \ 1273 __vh = __ll_highpart (v); \ 1274 \ 1275 __x0 = (UWtype) __ul * __vl; \ 1276 __x1 = (UWtype) __ul * __vh; \ 1277 __x2 = (UWtype) __uh * __vl; \ 1278 __x3 = (UWtype) __uh * __vh; \ 1279 \ 1280 __x1 += __ll_highpart (__x0);/* this can't give carry */ \ 1281 __x1 += __x2; /* but this indeed can */ \ 1282 if (__x1 < __x2) /* did we get it? */ \ 1283 __x3 += __ll_B; /* yes, add it in the proper pos. */ \ 1284 \ 1285 (w1) = __x3 + __ll_highpart (__x1); \ 1286 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ 1287 } while (0) 1288#endif 1289 1290#if !defined (__umulsidi3) 1291#define __umulsidi3(u, v) \ 1292 ({DWunion __w; \ 1293 umul_ppmm (__w.s.high, __w.s.low, u, v); \ 1294 __w.ll; }) 1295#endif 1296 1297/* Define this unconditionally, so it can be used for debugging. */ 1298#define __udiv_qrnnd_c(q, r, n1, n0, d) \ 1299 do { \ 1300 UWtype __d1, __d0, __q1, __q0; \ 1301 UWtype __r1, __r0, __m; \ 1302 __d1 = __ll_highpart (d); \ 1303 __d0 = __ll_lowpart (d); \ 1304 \ 1305 __r1 = (n1) % __d1; \ 1306 __q1 = (n1) / __d1; \ 1307 __m = (UWtype) __q1 * __d0; \ 1308 __r1 = __r1 * __ll_B | __ll_highpart (n0); \ 1309 if (__r1 < __m) \ 1310 { \ 1311 __q1--, __r1 += (d); \ 1312 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ 1313 if (__r1 < __m) \ 1314 __q1--, __r1 += (d); \ 1315 } \ 1316 __r1 -= __m; \ 1317 \ 1318 __r0 = __r1 % __d1; \ 1319 __q0 = __r1 / __d1; \ 1320 __m = (UWtype) __q0 * __d0; \ 1321 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ 1322 if (__r0 < __m) \ 1323 { \ 1324 __q0--, __r0 += (d); \ 1325 if (__r0 >= (d)) \ 1326 if (__r0 < __m) \ 1327 __q0--, __r0 += (d); \ 1328 } \ 1329 __r0 -= __m; \ 1330 \ 1331 (q) = (UWtype) __q1 * __ll_B | __q0; \ 1332 (r) = __r0; \ 1333 } while (0) 1334 1335/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through 1336 __udiv_w_sdiv (defined in libgcc or elsewhere). */ 1337#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd) 1338#define udiv_qrnnd(q, r, nh, nl, d) \ 1339 do { \ 1340 USItype __r; \ 1341 (q) = __udiv_w_sdiv (&__r, nh, nl, d); \ 1342 (r) = __r; \ 1343 } while (0) 1344#endif 1345 1346/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */ 1347#if !defined (udiv_qrnnd) 1348#define UDIV_NEEDS_NORMALIZATION 1 1349#define udiv_qrnnd __udiv_qrnnd_c 1350#endif 1351 1352#if !defined (count_leading_zeros) 1353#define count_leading_zeros(count, x) \ 1354 do { \ 1355 UWtype __xr = (x); \ 1356 UWtype __a; \ 1357 \ 1358 if (W_TYPE_SIZE <= 32) \ 1359 { \ 1360 __a = __xr < ((UWtype)1<<2*__BITS4) \ 1361 ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \ 1362 : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \ 1363 } \ 1364 else \ 1365 { \ 1366 for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \ 1367 if (((__xr >> __a) & 0xff) != 0) \ 1368 break; \ 1369 } \ 1370 \ 1371 (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \ 1372 } while (0) 1373#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE 1374#endif 1375 1376#if !defined (count_trailing_zeros) 1377/* Define count_trailing_zeros using count_leading_zeros. The latter might be 1378 defined in asm, but if it is not, the C version above is good enough. */ 1379#define count_trailing_zeros(count, x) \ 1380 do { \ 1381 UWtype __ctz_x = (x); \ 1382 UWtype __ctz_c; \ 1383 count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \ 1384 (count) = W_TYPE_SIZE - 1 - __ctz_c; \ 1385 } while (0) 1386#endif 1387 1388#ifndef UDIV_NEEDS_NORMALIZATION 1389#define UDIV_NEEDS_NORMALIZATION 0 1390#endif 1391