gcc/longlong.h

   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   __asm__ ("%@ Inlined umul_ppmm
 154         mov     %|r0, %2, lsr #16
 155         mov     %|r2, %3, lsr #16
 156         bic     %|r1, %2, %|r0, lsl #16
 157         bic     %|r2, %3, %|r2, lsl #16
 158         mul     %1, %|r1, %|r2
 159         mul     %|r2, %|r0, %|r2
 160         mul     %|r1, %0, %|r1
 161         mul     %0, %|r0, %0
 162         adds    %|r1, %|r2, %|r1
 163         addcs   %0, %0, #65536
 164         adds    %1, %1, %|r1, lsl #16
 165         adc     %0, %0, %|r1, lsr #16"                                  \
 166            : "=&r" ((USItype)(xh)),                                     \
 167              "=r" ((USItype)(xl))                                       \
 168            : "r" ((USItype)(a)),                                        \
 169              "r" ((USItype)(b))                                         \
 170            : "r0", "r1", "r2")
 171 #define UMUL_TIME 20
 172 #define UDIV_TIME 100
 173 #endif /* __arm__ */
 174
 175 #if defined (__clipper__)
 176 #define umul_ppmm(w1, w0, u, v) \
 177   ({union {UDItype __ll;                                                \
 178            struct {USItype __l, __h;} __i;                              \
 179           } __xx;                                                       \
 180   __asm__ ("mulwux %2,%0"                                               \
 181            : "=r" (__xx.__ll)                                           \
 182            : "%0" ((USItype)(u)),                                       \
 183              "r" ((USItype)(v)));                                       \
 184   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 185 #define smul_ppmm(w1, w0, u, v) \
 186   ({union {DItype __ll;                                                 \
 187            struct {SItype __l, __h;} __i;                               \
 188           } __xx;                                                       \
 189   __asm__ ("mulwx %2,%0"                                                \
 190            : "=r" (__xx.__ll)                                           \
 191            : "%0" ((SItype)(u)),                                        \
 192              "r" ((SItype)(v)));                                        \
 193   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 194 #define __umulsidi3(u, v) \
 195   ({UDItype __w;                                                        \
 196     __asm__ ("mulwux %2,%0"                                             \
 197              : "=r" (__w)                                               \
 198              : "%0" ((USItype)(u)),                                     \
 199                "r" ((USItype)(v)));                                     \
 200     __w; })
 201 #endif /* __clipper__ */
 202
 203 #if defined (__gmicro__)
 204 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 205   __asm__ ("add.w %5,%1
 206         addx %3,%0"                                                     \
 207            : "=g" ((USItype)(sh)),                                      \
 208              "=&g" ((USItype)(sl))                                      \
 209            : "%0" ((USItype)(ah)),                                      \
 210              "g" ((USItype)(bh)),                                       \
 211              "%1" ((USItype)(al)),                                      \
 212              "g" ((USItype)(bl)))
 213 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 214   __asm__ ("sub.w %5,%1
 215         subx %3,%0"                                                     \
 216            : "=g" ((USItype)(sh)),                                      \
 217              "=&g" ((USItype)(sl))                                      \
 218            : "0" ((USItype)(ah)),                                       \
 219              "g" ((USItype)(bh)),                                       \
 220              "1" ((USItype)(al)),                                       \
 221              "g" ((USItype)(bl)))
 222 #define umul_ppmm(ph, pl, m0, m1) \
 223   __asm__ ("mulx %3,%0,%1"                                              \
 224            : "=g" ((USItype)(ph)),                                      \
 225              "=r" ((USItype)(pl))                                       \
 226            : "%0" ((USItype)(m0)),                                      \
 227              "g" ((USItype)(m1)))
 228 #define udiv_qrnnd(q, r, nh, nl, d) \
 229   __asm__ ("divx %4,%0,%1"                                              \
 230            : "=g" ((USItype)(q)),                                       \
 231              "=r" ((USItype)(r))                                        \
 232            : "1" ((USItype)(nh)),                                       \
 233              "0" ((USItype)(nl)),                                       \
 234              "g" ((USItype)(d)))
 235 #define count_leading_zeros(count, x) \
 236   __asm__ ("bsch/1 %1,%0"                                               \
 237            : "=g" (count)                                               \
 238            : "g" ((USItype)(x)),                                        \
 239              "0" ((USItype)0))
 240 #endif
 241
 242 #if defined (__hppa)
 243 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 244   __asm__ ("add %4,%5,%1
 245         addc %2,%3,%0"                                                  \
 246            : "=r" ((USItype)(sh)),                                      \
 247              "=&r" ((USItype)(sl))                                      \
 248            : "%rM" ((USItype)(ah)),                                     \
 249              "rM" ((USItype)(bh)),                                      \
 250              "%rM" ((USItype)(al)),                                     \
 251              "rM" ((USItype)(bl)))
 252 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 253   __asm__ ("sub %4,%5,%1
 254         subb %2,%3,%0"                                                  \
 255            : "=r" ((USItype)(sh)),                                      \
 256              "=&r" ((USItype)(sl))                                      \
 257            : "rM" ((USItype)(ah)),                                      \
 258              "rM" ((USItype)(bh)),                                      \
 259              "rM" ((USItype)(al)),                                      \
 260              "rM" ((USItype)(bl)))
 261 #if defined (_PA_RISC1_1)
 262 #define umul_ppmm(w1, w0, u, v) \
 263   do {                                                                  \
 264     union                                                               \
 265       {                                                                 \
 266         UDItype __f;                                                    \
 267         struct {USItype __w1, __w0;} __w1w0;                            \
 268       } __t;                                                            \
 269     __asm__ ("xmpyu %1,%2,%0"                                           \
 270              : "=x" (__t.__f)                                           \
 271              : "x" ((USItype)(u)),                                      \
 272                "x" ((USItype)(v)));                                     \
 273     (w1) = __t.__w1w0.__w1;                                             \
 274     (w0) = __t.__w1w0.__w0;                                             \
 275      } while (0)
 276 #define UMUL_TIME 8
 277 #else
 278 #define UMUL_TIME 30
 279 #endif
 280 #define UDIV_TIME 40
 281 #define count_leading_zeros(count, x) \
 282   do {                                                                  \
 283     USItype __tmp;                                                      \
 284     __asm__ (                                                           \
 285        "ldi             1,%0
 286         extru,=         %1,15,16,%%r0           ; Bits 31..16 zero?
 287         extru,tr        %1,15,16,%1             ; No.  Shift down, skip add.
 288         ldo             16(%0),%0               ; Yes.  Perform add.
 289         extru,=         %1,23,8,%%r0            ; Bits 15..8 zero?
 290         extru,tr        %1,23,8,%1              ; No.  Shift down, skip add.
 291         ldo             8(%0),%0                ; Yes.  Perform add.
 292         extru,=         %1,27,4,%%r0            ; Bits 7..4 zero?
 293         extru,tr        %1,27,4,%1              ; No.  Shift down, skip add.
 294         ldo             4(%0),%0                ; Yes.  Perform add.
 295         extru,=         %1,29,2,%%r0            ; Bits 3..2 zero?
 296         extru,tr        %1,29,2,%1              ; No.  Shift down, skip add.
 297         ldo             2(%0),%0                ; Yes.  Perform add.
 298         extru           %1,30,1,%1              ; Extract bit 1.
 299         sub             %0,%1,%0                ; Subtract it.
 300         " : "=r" (count), "=r" (__tmp) : "1" (x));                      \
 301   } while (0)
 302 #endif
 303
 304 #if defined (__i386__) || defined (__i486__)
 305 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 306   __asm__ ("addl %5,%1
 307         adcl %3,%0"                                                     \
 308            : "=r" ((USItype)(sh)),                                      \
 309              "=&r" ((USItype)(sl))                                      \
 310            : "%0" ((USItype)(ah)),                                      \
 311              "g" ((USItype)(bh)),                                       \
 312              "%1" ((USItype)(al)),                                      \
 313              "g" ((USItype)(bl)))
 314 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 315   __asm__ ("subl %5,%1
 316         sbbl %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 umul_ppmm(w1, w0, u, v) \
 324   __asm__ ("mull %3"                                                    \
 325            : "=a" ((USItype)(w0)),                                      \
 326              "=d" ((USItype)(w1))                                       \
 327            : "%0" ((USItype)(u)),                                       \
 328              "rm" ((USItype)(v)))
 329 #define udiv_qrnnd(q, r, n1, n0, d) \
 330   __asm__ ("divl %4"                                                    \
 331            : "=a" ((USItype)(q)),                                       \
 332              "=d" ((USItype)(r))                                        \
 333            : "0" ((USItype)(n0)),                                       \
 334              "1" ((USItype)(n1)),                                       \
 335              "rm" ((USItype)(d)))
 336 #define count_leading_zeros(count, x) \
 337   do {                                                                  \
 338     USItype __cbtmp;                                                    \
 339     __asm__ ("bsrl %1,%0"                                               \
 340              : "=r" (__cbtmp) : "rm" ((USItype)(x)));                   \
 341     (count) = __cbtmp ^ 31;                                             \
 342   } while (0)
 343 #define UMUL_TIME 40
 344 #define UDIV_TIME 40
 345 #endif /* 80x86 */
 346
 347 #if defined (__i860__)
 348 #if 0
 349 /* Make sure these patterns really improve the code before
 350    switching them on.  */
 351 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 352   do {                                                                  \
 353     union                                                               \
 354       {                                                                 \
 355         DItype __ll;                                                    \
 356         struct {USItype __l, __h;} __i;                                 \
 357       }  __a, __b, __s;                                                 \
 358     __a.__i.__l = (al);                                                 \
 359     __a.__i.__h = (ah);                                                 \
 360     __b.__i.__l = (bl);                                                 \
 361     __b.__i.__h = (bh);                                                 \
 362     __asm__ ("fiadd.dd %1,%2,%0"                                        \
 363              : "=f" (__s.__ll)                                          \
 364              : "%f" (__a.__ll), "f" (__b.__ll));                        \
 365     (sh) = __s.__i.__h;                                                 \
 366     (sl) = __s.__i.__l;                                                 \
 367     } while (0)
 368 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 369   do {                                                                  \
 370     union                                                               \
 371       {                                                                 \
 372         DItype __ll;                                                    \
 373         struct {USItype __l, __h;} __i;                                 \
 374       }  __a, __b, __s;                                                 \
 375     __a.__i.__l = (al);                                                 \
 376     __a.__i.__h = (ah);                                                 \
 377     __b.__i.__l = (bl);                                                 \
 378     __b.__i.__h = (bh);                                                 \
 379     __asm__ ("fisub.dd %1,%2,%0"                                        \
 380              : "=f" (__s.__ll)                                          \
 381              : "%f" (__a.__ll), "f" (__b.__ll));                        \
 382     (sh) = __s.__i.__h;                                                 \
 383     (sl) = __s.__i.__l;                                                 \
 384     } while (0)
 385 #endif
 386 #endif /* __i860__ */
 387
 388 #if defined (__i960__)
 389 #define umul_ppmm(w1, w0, u, v) \
 390   ({union {UDItype __ll;                                                \
 391            struct {USItype __l, __h;} __i;                              \
 392           } __xx;                                                       \
 393   __asm__ ("emul        %2,%1,%0"                                       \
 394            : "=d" (__xx.__ll)                                           \
 395            : "%dI" ((USItype)(u)),                                      \
 396              "dI" ((USItype)(v)));                                      \
 397   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 398 #define __umulsidi3(u, v) \
 399   ({UDItype __w;                                                        \
 400     __asm__ ("emul      %2,%1,%0"                                       \
 401              : "=d" (__w)                                               \
 402              : "%dI" ((USItype)(u)),                                    \
 403                "dI" ((USItype)(v)));                                    \
 404     __w; })
 405 #endif /* __i960__ */
 406
 407 #if defined (__mc68000__)
 408 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 409   __asm__ ("add%.l %5,%1
 410         addx%.l %3,%0"                                                  \
 411            : "=d" ((USItype)(sh)),                                      \
 412              "=&d" ((USItype)(sl))                                      \
 413            : "%0" ((USItype)(ah)),                                      \
 414              "d" ((USItype)(bh)),                                       \
 415              "%1" ((USItype)(al)),                                      \
 416              "g" ((USItype)(bl)))
 417 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 418   __asm__ ("sub%.l %5,%1
 419         subx%.l %3,%0"                                                  \
 420            : "=d" ((USItype)(sh)),                                      \
 421              "=&d" ((USItype)(sl))                                      \
 422            : "0" ((USItype)(ah)),                                       \
 423              "d" ((USItype)(bh)),                                       \
 424              "1" ((USItype)(al)),                                       \
 425              "g" ((USItype)(bl)))
 426 #if defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)
 427 #define umul_ppmm(w1, w0, u, v) \
 428   __asm__ ("mulu%.l %3,%1:%0"                                           \
 429            : "=d" ((USItype)(w0)),                                      \
 430              "=d" ((USItype)(w1))                                       \
 431            : "%0" ((USItype)(u)),                                       \
 432              "dmi" ((USItype)(v)))
 433 #define UMUL_TIME 45
 434 #define udiv_qrnnd(q, r, n1, n0, d) \
 435   __asm__ ("divu%.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 #define UDIV_TIME 90
 442 #define sdiv_qrnnd(q, r, n1, n0, d) \
 443   __asm__ ("divs%.l %4,%1:%0"                                           \
 444            : "=d" ((USItype)(q)),                                       \
 445              "=d" ((USItype)(r))                                        \
 446            : "0" ((USItype)(n0)),                                       \
 447              "1" ((USItype)(n1)),                                       \
 448              "dmi" ((USItype)(d)))
 449 #define count_leading_zeros(count, x) \
 450   __asm__ ("bfffo %1{%b2:%b2},%0"                                       \
 451            : "=d" ((USItype)(count))                                    \
 452            : "od" ((USItype)(x)), "n" (0))
 453 #else /* not mc68020 */
 454 /* %/ inserts REGISTER_PREFIX.  */
 455 #define umul_ppmm(xh, xl, a, b) \
 456   __asm__ ("| Inlined umul_ppmm
 457         move%.l %2,%/d0
 458         move%.l %3,%/d1
 459         move%.l %/d0,%/d2
 460         swap    %/d0
 461         move%.l %/d1,%/d3
 462         swap    %/d1
 463         move%.w %/d2,%/d4
 464         mulu    %/d3,%/d4
 465         mulu    %/d1,%/d2
 466         mulu    %/d0,%/d3
 467         mulu    %/d0,%/d1
 468         move%.l %/d4,%/d0
 469         eor%.w  %/d0,%/d0
 470         swap    %/d0
 471         add%.l  %/d0,%/d2
 472         add%.l  %/d3,%/d2
 473         jcc     1f
 474         add%.l  #65536,%/d1
 475 1:      swap    %/d2
 476         moveq   #0,%/d0
 477         move%.w %/d2,%/d0
 478         move%.w %/d4,%/d2
 479         move%.l %/d2,%1
 480         add%.l  %/d1,%/d0
 481         move%.l %/d0,%0"                                                \
 482            : "=g" ((USItype)(xh)),                                      \
 483              "=g" ((USItype)(xl))                                       \
 484            : "g" ((USItype)(a)),                                        \
 485              "g" ((USItype)(b))                                         \
 486            : "d0", "d1", "d2", "d3", "d4")
 487 #define UMUL_TIME 100
 488 #define UDIV_TIME 400
 489 #endif /* not mc68020 */
 490 #endif /* mc68000 */
 491
 492 #if defined (__m88000__)
 493 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 494   __asm__ ("addu.co %1,%r4,%r5
 495         addu.ci %0,%r2,%r3"                                             \
 496            : "=r" ((USItype)(sh)),                                      \
 497              "=&r" ((USItype)(sl))                                      \
 498            : "%rJ" ((USItype)(ah)),                                     \
 499              "rJ" ((USItype)(bh)),                                      \
 500              "%rJ" ((USItype)(al)),                                     \
 501              "rJ" ((USItype)(bl)))
 502 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 503   __asm__ ("subu.co %1,%r4,%r5
 504         subu.ci %0,%r2,%r3"                                             \
 505            : "=r" ((USItype)(sh)),                                      \
 506              "=&r" ((USItype)(sl))                                      \
 507            : "rJ" ((USItype)(ah)),                                      \
 508              "rJ" ((USItype)(bh)),                                      \
 509              "rJ" ((USItype)(al)),                                      \
 510              "rJ" ((USItype)(bl)))
 511 #define count_leading_zeros(count, x) \
 512   do {                                                                  \
 513     USItype __cbtmp;                                                    \
 514     __asm__ ("ff1 %0,%1"                                                \
 515              : "=r" (__cbtmp)                                           \
 516              : "r" ((USItype)(x)));                                     \
 517     (count) = __cbtmp ^ 31;                                             \
 518   } while (0)
 519 #if defined (__mc88110__)
 520 #define umul_ppmm(wh, wl, u, v) \
 521   do {                                                                  \
 522     union {UDItype __ll;                                                \
 523            struct {USItype __h, __l;} __i;                              \
 524           } __xx;                                                       \
 525     __asm__ ("mulu.d    %0,%1,%2"                                       \
 526              : "=r" (__xx.__ll)                                         \
 527              : "r" ((USItype)(u)),                                      \
 528                "r" ((USItype)(v)));                                     \
 529     (wh) = __xx.__i.__h;                                                \
 530     (wl) = __xx.__i.__l;                                                \
 531   } while (0)
 532 #define udiv_qrnnd(q, r, n1, n0, d) \
 533   ({union {UDItype __ll;                                                \
 534            struct {USItype __h, __l;} __i;                              \
 535           } __xx;                                                       \
 536   USItype __q;                                                          \
 537   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 538   __asm__ ("divu.d %0,%1,%2"                                            \
 539            : "=r" (__q)                                                 \
 540            : "r" (__xx.__ll),                                           \
 541              "r" ((USItype)(d)));                                       \
 542   (r) = (n0) - __q * (d); (q) = __q; })
 543 #define UMUL_TIME 5
 544 #define UDIV_TIME 25
 545 #else
 546 #define UMUL_TIME 17
 547 #define UDIV_TIME 150
 548 #endif /* __mc88110__ */
 549 #endif /* __m88000__ */
 550
 551 #if defined (__mips__)
 552 #define umul_ppmm(w1, w0, u, v) \
 553   __asm__ ("multu %2,%3
 554         mflo %0
 555         mfhi %1"                                                        \
 556            : "=d" ((USItype)(w0)),                                      \
 557              "=d" ((USItype)(w1))                                       \
 558            : "d" ((USItype)(u)),                                        \
 559              "d" ((USItype)(v)))
 560 #define UMUL_TIME 10
 561 #define UDIV_TIME 100
 562 #endif /* __mips__ */
 563
 564 #if defined (__ns32000__)
 565 #define umul_ppmm(w1, w0, u, v) \
 566   ({union {UDItype __ll;                                                \
 567            struct {USItype __l, __h;} __i;                              \
 568           } __xx;                                                       \
 569   __asm__ ("meid %2,%0"                                                 \
 570            : "=g" (__xx.__ll)                                           \
 571            : "%0" ((USItype)(u)),                                       \
 572              "g" ((USItype)(v)));                                       \
 573   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 574 #define __umulsidi3(u, v) \
 575   ({UDItype __w;                                                        \
 576     __asm__ ("meid %2,%0"                                               \
 577              : "=g" (__w)                                               \
 578              : "%0" ((USItype)(u)),                                     \
 579                "g" ((USItype)(v)));                                     \
 580     __w; })
 581 #define udiv_qrnnd(q, r, n1, n0, d) \
 582   ({union {UDItype __ll;                                                \
 583            struct {USItype __l, __h;} __i;                              \
 584           } __xx;                                                       \
 585   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 586   __asm__ ("deid %2,%0"                                                 \
 587            : "=g" (__xx.__ll)                                           \
 588            : "0" (__xx.__ll),                                           \
 589              "g" ((USItype)(d)));                                       \
 590   (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
 591 #endif /* __ns32000__ */
 592
 593 #if (defined (__powerpc__) || defined (___IBMR2__)) && W_TYPE_SIZE == 32
 594 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 595   do {                                                                  \
 596     if (__builtin_constant_p (bh) && (bh) == 0)                         \
 597       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
 598              : "=r" ((USItype)(sh)),                                    \
 599                "=&r" ((USItype)(sl))                                    \
 600              : "%r" ((USItype)(ah)),                                    \
 601                "%r" ((USItype)(al)),                                    \
 602                "rI" ((USItype)(bl)));                                   \
 603     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
 604       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
 605              : "=r" ((USItype)(sh)),                                    \
 606                "=&r" ((USItype)(sl))                                    \
 607              : "%r" ((USItype)(ah)),                                    \
 608                "%r" ((USItype)(al)),                                    \
 609                "rI" ((USItype)(bl)));                                   \
 610     else                                                                \
 611       __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
 612              : "=r" ((USItype)(sh)),                                    \
 613                "=&r" ((USItype)(sl))                                    \
 614              : "%r" ((USItype)(ah)),                                    \
 615                "r" ((USItype)(bh)),                                     \
 616                "%r" ((USItype)(al)),                                    \
 617                "rI" ((USItype)(bl)));                                   \
 618   } while (0)
 619 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 620   do {                                                                  \
 621     if (__builtin_constant_p (ah) && (ah) == 0)                         \
 622       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"               \
 623                : "=r" ((USItype)(sh)),                                  \
 624                  "=&r" ((USItype)(sl))                                  \
 625                : "r" ((USItype)(bh)),                                   \
 626                  "rI" ((USItype)(al)),                                  \
 627                  "r" ((USItype)(bl)));                                  \
 628     else if (__builtin_constant_p (ah) && (ah) ==~(USItype) 0)          \
 629       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"               \
 630                : "=r" ((USItype)(sh)),                                  \
 631                  "=&r" ((USItype)(sl))                                  \
 632                : "r" ((USItype)(bh)),                                   \
 633                  "rI" ((USItype)(al)),                                  \
 634                  "r" ((USItype)(bl)));                                  \
 635     else if (__builtin_constant_p (bh) && (bh) == 0)                    \
 636       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
 637                : "=r" ((USItype)(sh)),                                  \
 638                  "=&r" ((USItype)(sl))                                  \
 639                : "r" ((USItype)(ah)),                                   \
 640                  "rI" ((USItype)(al)),                                  \
 641                  "r" ((USItype)(bl)));                                  \
 642     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
 643       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
 644                : "=r" ((USItype)(sh)),                                  \
 645                  "=&r" ((USItype)(sl))                                  \
 646                : "r" ((USItype)(ah)),                                   \
 647                  "rI" ((USItype)(al)),                                  \
 648                  "r" ((USItype)(bl)));                                  \
 649     else                                                                \
 650       __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
 651                : "=r" ((USItype)(sh)),                                  \
 652                  "=&r" ((USItype)(sl))                                  \
 653                : "r" ((USItype)(ah)),                                   \
 654                  "r" ((USItype)(bh)),                                   \
 655                  "rI" ((USItype)(al)),                                  \
 656                  "r" ((USItype)(bl)));                                  \
 657   } while (0)
 658 #define count_leading_zeros(count, x) \
 659   __asm__ ("{cntlz|cntlzw} %0,%1"                                       \
 660            : "=r" ((USItype)(count))                                    \
 661            : "r" ((USItype)(x)))
 662 #if defined (__powerpc__)
 663 #define umul_ppmm(ph, pl, m0, m1) \
 664   do {                                                                  \
 665     USItype __m0 = (m0), __m1 = (m1);                                   \
 666     __asm__ ("mulhwu %0,%1,%2"                                          \
 667              : "=r" ((USItype) ph)                                      \
 668              : "%r" (__m0),                                             \
 669                "r" (__m1));                                             \
 670     (pl) = __m0 * __m1;                                                 \
 671   } while (0)
 672 #define UMUL_TIME 15
 673 #define smul_ppmm(ph, pl, m0, m1) \
 674   do {                                                                  \
 675     SItype __m0 = (m0), __m1 = (m1);                                    \
 676     __asm__ ("mulhw %0,%1,%2"                                           \
 677              : "=r" ((SItype) ph)                                       \
 678              : "%r" (__m0),                                             \
 679                "r" (__m1));                                             \
 680     (pl) = __m0 * __m1;                                                 \
 681   } while (0)
 682 #define SMUL_TIME 14
 683 #define UDIV_TIME 120
 684 #else
 685 #define umul_ppmm(xh, xl, m0, m1) \
 686   do {                                                                  \
 687     USItype __m0 = (m0), __m1 = (m1);                                   \
 688     __asm__ ("mul %0,%2,%3"                                             \
 689              : "=r" ((USItype)(xh)),                                    \
 690                "=q" ((USItype)(xl))                                     \
 691              : "r" (__m0),                                              \
 692                "r" (__m1));                                             \
 693     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
 694              + (((SItype) __m1 >> 31) & __m0));                         \
 695   } while (0)
 696 #define UMUL_TIME 8
 697 #define smul_ppmm(xh, xl, m0, m1) \
 698   __asm__ ("mul %0,%2,%3"                                               \
 699            : "=r" ((SItype)(xh)),                                       \
 700              "=q" ((SItype)(xl))                                        \
 701            : "r" (m0),                                                  \
 702              "r" (m1))
 703 #define SMUL_TIME 4
 704 #define sdiv_qrnnd(q, r, nh, nl, d) \
 705   __asm__ ("div %0,%2,%4"                                               \
 706            : "=r" ((SItype)(q)), "=q" ((SItype)(r))                     \
 707            : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d)))
 708 #define UDIV_TIME 100
 709 #endif
 710 #endif /* Power architecture variants.  */
 711
 712 #if defined (__pyr__)
 713 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 714   __asm__ ("addw        %5,%1
 715         addwc   %3,%0"                                                  \
 716            : "=r" ((USItype)(sh)),                                      \
 717              "=&r" ((USItype)(sl))                                      \
 718            : "%0" ((USItype)(ah)),                                      \
 719              "g" ((USItype)(bh)),                                       \
 720              "%1" ((USItype)(al)),                                      \
 721              "g" ((USItype)(bl)))
 722 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 723   __asm__ ("subw        %5,%1
 724         subwb   %3,%0"                                                  \
 725            : "=r" ((USItype)(sh)),                                      \
 726              "=&r" ((USItype)(sl))                                      \
 727            : "0" ((USItype)(ah)),                                       \
 728              "g" ((USItype)(bh)),                                       \
 729              "1" ((USItype)(al)),                                       \
 730              "g" ((USItype)(bl)))
 731 /* This insn doesn't work on ancient pyramids.  */
 732 #define umul_ppmm(w1, w0, u, v) \
 733   ({union {                                                             \
 734         UDItype __ll;                                                   \
 735         struct {USItype __h, __l;} __i;                                 \
 736      } __xx;                                                            \
 737   __xx.__i.__l = u;                                                     \
 738   __asm__ ("uemul %3,%0"                                                \
 739            : "=r" (__xx.__i.__h),                                       \
 740              "=r" (__xx.__i.__l)                                        \
 741            : "1" (__xx.__i.__l),                                        \
 742              "g" ((USItype)(v)));                                       \
 743   (w1) = __xx.__i.__h;                                                  \
 744   (w0) = __xx.__i.__l;})
 745 #endif /* __pyr__ */
 746
 747 #if defined (__ibm032__) /* RT/ROMP */
 748 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 749   __asm__ ("a %1,%5
 750         ae %0,%3"                                                       \
 751            : "=r" ((USItype)(sh)),                                      \
 752              "=&r" ((USItype)(sl))                                      \
 753            : "%0" ((USItype)(ah)),                                      \
 754              "r" ((USItype)(bh)),                                       \
 755              "%1" ((USItype)(al)),                                      \
 756              "r" ((USItype)(bl)))
 757 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 758   __asm__ ("s %1,%5
 759         se %0,%3"                                                       \
 760            : "=r" ((USItype)(sh)),                                      \
 761              "=&r" ((USItype)(sl))                                      \
 762            : "0" ((USItype)(ah)),                                       \
 763              "r" ((USItype)(bh)),                                       \
 764              "1" ((USItype)(al)),                                       \
 765              "r" ((USItype)(bl)))
 766 #define umul_ppmm(ph, pl, m0, m1) \
 767   do {                                                                  \
 768     USItype __m0 = (m0), __m1 = (m1);                                   \
 769     __asm__ (                                                           \
 770        "s       r2,r2
 771         mts     r10,%2
 772         m       r2,%3
 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         cas     %0,r2,r0
 789         mfs     r10,%1"                                                 \
 790              : "=r" ((USItype)(ph)),                                    \
 791                "=r" ((USItype)(pl))                                     \
 792              : "%r" (__m0),                                             \
 793                 "r" (__m1)                                              \
 794              : "r2");                                                   \
 795     (ph) += ((((SItype) __m0 >> 31) & __m1)                             \
 796              + (((SItype) __m1 >> 31) & __m0));                         \
 797   } while (0)
 798 #define UMUL_TIME 20
 799 #define UDIV_TIME 200
 800 #define count_leading_zeros(count, x) \
 801   do {                                                                  \
 802     if ((x) >= 0x10000)                                                 \
 803       __asm__ ("clz     %0,%1"                                          \
 804                : "=r" ((USItype)(count))                                \
 805                : "r" ((USItype)(x) >> 16));                             \
 806     else                                                                \
 807       {                                                                 \
 808         __asm__ ("clz   %0,%1"                                          \
 809                  : "=r" ((USItype)(count))                              \
 810                  : "r" ((USItype)(x)));                                 \
 811         (count) += 16;                                                  \
 812       }                                                                 \
 813   } while (0)
 814 #endif
 815
 816 #if defined (__sparc__)
 817 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 818   __asm__ ("addcc %r4,%5,%1
 819         addx %r2,%3,%0"                                                 \
 820            : "=r" ((USItype)(sh)),                                      \
 821              "=&r" ((USItype)(sl))                                      \
 822            : "%rJ" ((USItype)(ah)),                                     \
 823              "rI" ((USItype)(bh)),                                      \
 824              "%rJ" ((USItype)(al)),                                     \
 825              "rI" ((USItype)(bl))                                       \
 826            __CLOBBER_CC)
 827 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 828   __asm__ ("subcc %r4,%5,%1
 829         subx %r2,%3,%0"                                                 \
 830            : "=r" ((USItype)(sh)),                                      \
 831              "=&r" ((USItype)(sl))                                      \
 832            : "rJ" ((USItype)(ah)),                                      \
 833              "rI" ((USItype)(bh)),                                      \
 834              "rJ" ((USItype)(al)),                                      \
 835              "rI" ((USItype)(bl))                                       \
 836            __CLOBBER_CC)
 837 #if defined (__sparc_v8__)
 838 #define umul_ppmm(w1, w0, u, v) \
 839   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 840            : "=r" ((USItype)(w1)),                                      \
 841              "=r" ((USItype)(w0))                                       \
 842            : "r" ((USItype)(u)),                                        \
 843              "r" ((USItype)(v)))
 844 #define udiv_qrnnd(q, r, n1, n0, d) \
 845   __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
 846            : "=&r" ((USItype)(q)),                                      \
 847              "=&r" ((USItype)(r))                                       \
 848            : "r" ((USItype)(n1)),                                       \
 849              "r" ((USItype)(n0)),                                       \
 850              "r" ((USItype)(d)))
 851 #else
 852 #if defined (__sparclite__)
 853 /* This has hardware multiply but not divide.  It also has two additional
 854    instructions scan (ffs from high bit) and divscc.  */
 855 #define umul_ppmm(w1, w0, u, v) \
 856   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 857            : "=r" ((USItype)(w1)),                                      \
 858              "=r" ((USItype)(w0))                                       \
 859            : "r" ((USItype)(u)),                                        \
 860              "r" ((USItype)(v)))
 861 #define udiv_qrnnd(q, r, n1, n0, d) \
 862   __asm__ ("! Inlined udiv_qrnnd
 863         wr      %%g0,%2,%%y     ! Not a delayed write for sparclite
 864         tst     %%g0
 865         divscc  %3,%4,%%g1
 866         divscc  %%g1,%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,%0
 897         rd      %%y,%1
 898         bl,a 1f
 899         add     %1,%4,%1
 900 1:      ! End of inline udiv_qrnnd"                                     \
 901            : "=r" ((USItype)(q)),                                       \
 902              "=r" ((USItype)(r))                                        \
 903            : "r" ((USItype)(n1)),                                       \
 904              "r" ((USItype)(n0)),                                       \
 905              "rI" ((USItype)(d))                                        \
 906            : "%g1" __AND_CLOBBER_CC)
 907 #define UDIV_TIME 37
 908 #define count_leading_zeros(count, x) \
 909   __asm__ ("scan %1,0,%0"                                               \
 910            : "=r" ((USItype)(x))                                        \
 911            : "r" ((USItype)(count)))
 912 #else
 913 /* SPARC without integer multiplication and divide instructions.
 914    (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
 915 #define umul_ppmm(w1, w0, u, v) \
 916   __asm__ ("! Inlined umul_ppmm
 917         wr      %%g0,%2,%%y     ! SPARC has 0-3 delay insn after a wr
 918         sra     %3,31,%%g2      ! Don't move this insn
 919         and     %2,%%g2,%%g2    ! Don't move this insn
 920         andcc   %%g0,0,%%g1     ! Don't move this insn
 921         mulscc  %%g1,%3,%%g1
 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  %%g1,0,%%g1
 954         add     %%g1,%%g2,%0
 955         rd      %%y,%1"                                                 \
 956            : "=r" ((USItype)(w1)),                                      \
 957              "=r" ((USItype)(w0))                                       \
 958            : "%rI" ((USItype)(u)),                                      \
 959              "r" ((USItype)(v))                                         \
 960            : "%g1", "%g2" __AND_CLOBBER_CC)
 961 #define UMUL_TIME 39            /* 39 instructions */
 962 /* It's quite necessary to add this much assembler for the sparc.
 963    The default udiv_qrnnd (in C) is more than 10 times slower!  */
 964 #define udiv_qrnnd(q, r, n1, n0, d) \
 965   __asm__ ("! Inlined udiv_qrnnd
 966         mov     32,%%g1
 967         subcc   %1,%2,%%g0
 968 1:      bcs     5f
 969          addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb
 970         sub     %1,%2,%1        ! this kills msb of n
 971         addx    %1,%1,%1        ! so this can't give carry
 972         subcc   %%g1,1,%%g1
 973 2:      bne     1b
 974          subcc  %1,%2,%%g0
 975         bcs     3f
 976          addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb
 977         b       3f
 978          sub    %1,%2,%1        ! this kills msb of n
 979 4:      sub     %1,%2,%1
 980 5:      addxcc  %1,%1,%1
 981         bcc     2b
 982          subcc  %%g1,1,%%g1
 983 ! Got carry from n.  Subtract next step to cancel this carry.
 984         bne     4b
 985          addcc  %0,%0,%0        ! shift n1n0 and a 0-bit in lsb
 986         sub     %1,%2,%1
 987 3:      xnor    %0,0,%0
 988         ! End of inline udiv_qrnnd"                                     \
 989            : "=&r" ((USItype)(q)),                                      \
 990              "=&r" ((USItype)(r))                                       \
 991            : "r" ((USItype)(d)),                                        \
 992              "1" ((USItype)(n1)),                                       \
 993              "0" ((USItype)(n0)) : "%g1" __AND_CLOBBER_CC)
 994 #define UDIV_TIME (3+7*32)      /* 7 instructions/iteration. 32 iterations. */
 995 #endif /* __sparclite__ */
 996 #endif /* __sparc_v8__ */
 997 #endif /* __sparc__ */
 998
 999 #if defined (__vax__)
1000 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1001   __asm__ ("addl2 %5,%1
1002         adwc %3,%0"                                                     \
1003            : "=g" ((USItype)(sh)),                                      \
1004              "=&g" ((USItype)(sl))                                      \
1005            : "%0" ((USItype)(ah)),                                      \
1006              "g" ((USItype)(bh)),                                       \
1007              "%1" ((USItype)(al)),                                      \
1008              "g" ((USItype)(bl)))
1009 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1010   __asm__ ("subl2 %5,%1
1011         sbwc %3,%0"                                                     \
1012            : "=g" ((USItype)(sh)),                                      \
1013              "=&g" ((USItype)(sl))                                      \
1014            : "0" ((USItype)(ah)),                                       \
1015              "g" ((USItype)(bh)),                                       \
1016              "1" ((USItype)(al)),                                       \
1017              "g" ((USItype)(bl)))
1018 #define umul_ppmm(xh, xl, m0, m1) \
1019   do {                                                                  \
1020     union {                                                             \
1021         UDItype __ll;                                                   \
1022         struct {USItype __l, __h;} __i;                                 \
1023       } __xx;                                                           \
1024     USItype __m0 = (m0), __m1 = (m1);                                   \
1025     __asm__ ("emul %1,%2,$0,%0"                                         \
1026              : "=r" (__xx.__ll)                                         \
1027              : "g" (__m0),                                              \
1028                "g" (__m1));                                             \
1029     (xh) = __xx.__i.__h;                                                \
1030     (xl) = __xx.__i.__l;                                                \
1031     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
1032              + (((SItype) __m1 >> 31) & __m0));                         \
1033   } while (0)
1034 #define sdiv_qrnnd(q, r, n1, n0, d) \
1035   do {                                                                  \
1036     union {DItype __ll;                                                 \
1037            struct {SItype __l, __h;} __i;                               \
1038           } __xx;                                                       \
1039     __xx.__i.__h = n1; __xx.__i.__l = n0;                               \
1040     __asm__ ("ediv %3,%2,%0,%1"                                         \
1041              : "=g" (q), "=g" (r)                                       \
1042              : "g" (__n1n0.ll), "g" (d));                               \
1043   } while (0)
1044 #endif /* __vax__ */
1045
1046 #endif /* __GNUC__ */
1047
1048 /* If this machine has no inline assembler, use C macros.  */
1049
1050 #if !defined (add_ssaaaa)
1051 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1052   do {                                                                  \
1053     USItype __x;                                                        \
1054     __x = (al) + (bl);                                                  \
1055     (sh) = (ah) + (bh) + (__x < (al));                                  \
1056     (sl) = __x;                                                         \
1057   } while (0)
1058 #endif
1059
1060 #if !defined (sub_ddmmss)
1061 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1062   do {                                                                  \
1063     USItype __x;                                                        \
1064     __x = (al) - (bl);                                                  \
1065     (sh) = (ah) - (bh) - (__x > (al));                                  \
1066     (sl) = __x;                                                         \
1067   } while (0)
1068 #endif
1069
1070 #if !defined (umul_ppmm)
1071 #define umul_ppmm(w1, w0, u, v)                                         \
1072   do {                                                                  \
1073     USItype __x0, __x1, __x2, __x3;                                     \
1074     USItype __ul, __vl, __uh, __vh;                                     \
1075                                                                         \
1076     __ul = __ll_lowpart (u);                                            \
1077     __uh = __ll_highpart (u);                                           \
1078     __vl = __ll_lowpart (v);                                            \
1079     __vh = __ll_highpart (v);                                           \
1080                                                                         \
1081     __x0 = (USItype) __ul * __vl;                                       \
1082     __x1 = (USItype) __ul * __vh;                                       \
1083     __x2 = (USItype) __uh * __vl;                                       \
1084     __x3 = (USItype) __uh * __vh;                                       \
1085                                                                         \
1086     __x1 += __ll_highpart (__x0);/* this can't give carry */            \
1087     __x1 += __x2;               /* but this indeed can */               \
1088     if (__x1 < __x2)            /* did we get it? */                    \
1089       __x3 += __ll_B;           /* yes, add it in the proper pos. */    \
1090                                                                         \
1091     (w1) = __x3 + __ll_highpart (__x1);                                 \
1092     (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
1093   } while (0)
1094 #endif
1095
1096 #if !defined (__umulsidi3)
1097 #define __umulsidi3(u, v) \
1098   ({DIunion __w;                                                        \
1099     umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
1100     __w.ll; })
1101 #endif
1102
1103 /* Define this unconditionally, so it can be used for debugging.  */
1104 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1105   do {                                                                  \
1106     USItype __d1, __d0, __q1, __q0;                                     \
1107     USItype __r1, __r0, __m;                                            \
1108     __d1 = __ll_highpart (d);                                           \
1109     __d0 = __ll_lowpart (d);                                            \
1110                                                                         \
1111     __r1 = (n1) % __d1;                                                 \
1112     __q1 = (n1) / __d1;                                                 \
1113     __m = (USItype) __q1 * __d0;                                        \
1114     __r1 = __r1 * __ll_B | __ll_highpart (n0);                          \
1115     if (__r1 < __m)                                                     \
1116       {                                                                 \
1117         __q1--, __r1 += (d);                                            \
1118         if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1119           if (__r1 < __m)                                               \
1120             __q1--, __r1 += (d);                                        \
1121       }                                                                 \
1122     __r1 -= __m;                                                        \
1123                                                                         \
1124     __r0 = __r1 % __d1;                                                 \
1125     __q0 = __r1 / __d1;                                                 \
1126     __m = (USItype) __q0 * __d0;                                        \
1127     __r0 = __r0 * __ll_B | __ll_lowpart (n0);                           \
1128     if (__r0 < __m)                                                     \
1129       {                                                                 \
1130         __q0--, __r0 += (d);                                            \
1131         if (__r0 >= (d))                                                \
1132           if (__r0 < __m)                                               \
1133             __q0--, __r0 += (d);                                        \
1134       }                                                                 \
1135     __r0 -= __m;                                                        \
1136                                                                         \
1137     (q) = (USItype) __q1 * __ll_B | __q0;                               \
1138     (r) = __r0;                                                         \
1139   } while (0)
1140
1141 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1142    __udiv_w_sdiv (defined in libgcc or elsewhere).  */
1143 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1144 #define udiv_qrnnd(q, r, nh, nl, d) \
1145   do {                                                                  \
1146     USItype __r;                                                        \
1147     (q) = __udiv_w_sdiv (&__r, nh, nl, d);                              \
1148     (r) = __r;                                                          \
1149   } while (0)
1150 #endif
1151
1152 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
1153 #if !defined (udiv_qrnnd)
1154 #define UDIV_NEEDS_NORMALIZATION 1
1155 #define udiv_qrnnd __udiv_qrnnd_c
1156 #endif
1157
1158 #if !defined (count_leading_zeros)
1159 extern const UQItype __clz_tab[];
1160 #define count_leading_zeros(count, x) \
1161   do {                                                                  \
1162     USItype __xr = (x);                                                 \
1163     USItype __a;                                                        \
1164                                                                         \
1165     if (SI_TYPE_SIZE <= 32)                                             \
1166       {                                                                 \
1167         __a = __xr < (1<<2*__BITS4)                                     \
1168           ? (__xr < (1<<__BITS4) ? 0 : __BITS4)                         \
1169           : (__xr < (1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);           \
1170       }                                                                 \
1171     else                                                                \
1172       {                                                                 \
1173         for (__a = SI_TYPE_SIZE - 8; __a > 0; __a -= 8)         \
1174           if (((__xr >> __a) & 0xff) != 0)                              \
1175             break;                                                      \
1176       }                                                                 \
1177                                                                         \
1178     (count) = SI_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);            \
1179   } while (0)
1180 #endif
1181
1182 #ifndef UDIV_NEEDS_NORMALIZATION
1183 #define UDIV_NEEDS_NORMALIZATION 0
1184 #endif