gcc/longlong.h

   1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
   2    Copyright (C) 1991, 1992, 1994, 1995, 1996 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., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #ifndef SI_TYPE_SIZE
  20 #define SI_TYPE_SIZE 32
  21 #endif
  22
  23 #define __BITS4 (SI_TYPE_SIZE / 4)
  24 #define __ll_B (1L << (SI_TYPE_SIZE / 2))
  25 #define __ll_lowpart(t) ((USItype) (t) % __ll_B)
  26 #define __ll_highpart(t) ((USItype) (t) / __ll_B)
  27
  28 /* Define auxiliary asm macros.
  29
  30    1) umul_ppmm(high_prod, low_prod, multipler, multiplicand)
  31    multiplies two USItype integers MULTIPLER and MULTIPLICAND,
  32    and generates a two-part USItype product in HIGH_PROD and
  33    LOW_PROD.
  34
  35    2) __umulsidi3(a,b) multiplies two USItype integers A and B,
  36    and returns a UDItype product.  This is just a variant of umul_ppmm.
  37
  38    3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
  39    denominator) divides a two-word unsigned integer, composed by the
  40    integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and
  41    places the quotient in QUOTIENT and the remainder in REMAINDER.
  42    HIGH_NUMERATOR must be less than DENOMINATOR for correct operation.
  43    If, in addition, the most significant bit of DENOMINATOR must be 1,
  44    then the pre-processor symbol UDIV_NEEDS_NORMALIZATION is defined to 1.
  45
  46    4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
  47    denominator).  Like udiv_qrnnd but the numbers are signed.  The
  48    quotient is rounded towards 0.
  49
  50    5) count_leading_zeros(count, x) counts the number of zero-bits from
  51    the msb to the first non-zero bit.  This is the number of steps X
  52    needs to be shifted left to set the msb.  Undefined for X == 0.
  53
  54    6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
  55    high_addend_2, low_addend_2) adds two two-word unsigned integers,
  56    composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and
  57    LOW_ADDEND_2 respectively.  The result is placed in HIGH_SUM and
  58    LOW_SUM.  Overflow (i.e. carry out) is not stored anywhere, and is
  59    lost.
  60
  61    7) sub_ddmmss(high_difference, low_difference, high_minuend,
  62    low_minuend, high_subtrahend, low_subtrahend) subtracts two
  63    two-word unsigned integers, composed by HIGH_MINUEND_1 and
  64    LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2
  65    respectively.  The result is placed in HIGH_DIFFERENCE and
  66    LOW_DIFFERENCE.  Overflow (i.e. carry out) is not stored anywhere,
  67    and is lost.
  68
  69    If any of these macros are left undefined for a particular CPU,
  70    C macros are used.  */
  71
  72 /* The CPUs come in alphabetical order below.
  73
  74    Please add support for more CPUs here, or improve the current support
  75    for the CPUs below!
  76    (E.g. WE32100, IBM360.)  */
  77
  78 #if defined (__GNUC__) && !defined (NO_ASM)
  79
  80 /* We sometimes need to clobber "cc" with gcc2, but that would not be
  81    understood by gcc1.  Use cpp to avoid major code duplication.  */
  82 #if __GNUC__ < 2
  83 #define __CLOBBER_CC
  84 #define __AND_CLOBBER_CC
  85 #else /* __GNUC__ >= 2 */
  86 #define __CLOBBER_CC : "cc"
  87 #define __AND_CLOBBER_CC , "cc"
  88 #endif /* __GNUC__ < 2 */
  89
  90 #if defined (__a29k__) || defined (_AM29K)
  91 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  92   __asm__ ("add %1,%4,%5
  93         addc %0,%2,%3"                                                  \
  94            : "=r" ((USItype) (sh)),                                     \
  95             "=&r" ((USItype) (sl))                                      \
  96            : "%r" ((USItype) (ah)),                                     \
  97              "rI" ((USItype) (bh)),                                     \
  98              "%r" ((USItype) (al)),                                     \
  99              "rI" ((USItype) (bl)))
 100 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 101   __asm__ ("sub %1,%4,%5
 102         subc %0,%2,%3"                                                  \
 103            : "=r" ((USItype) (sh)),                                     \
 104              "=&r" ((USItype) (sl))                                     \
 105            : "r" ((USItype) (ah)),                                      \
 106              "rI" ((USItype) (bh)),                                     \
 107              "r" ((USItype) (al)),                                      \
 108              "rI" ((USItype) (bl)))
 109 #define umul_ppmm(xh, xl, m0, m1) \
 110   do {                                                                  \
 111     USItype __m0 = (m0), __m1 = (m1);                                   \
 112     __asm__ ("multiplu %0,%1,%2"                                        \
 113              : "=r" ((USItype) (xl))                                    \
 114              : "r" (__m0),                                              \
 115                "r" (__m1));                                             \
 116     __asm__ ("multmu %0,%1,%2"                                          \
 117              : "=r" ((USItype) (xh))                                    \
 118              : "r" (__m0),                                              \
 119                "r" (__m1));                                             \
 120   } while (0)
 121 #define udiv_qrnnd(q, r, n1, n0, d) \
 122   __asm__ ("dividu %0,%3,%4"                                            \
 123            : "=r" ((USItype) (q)),                                      \
 124              "=q" ((USItype) (r))                                       \
 125            : "1" ((USItype) (n1)),                                      \
 126              "r" ((USItype) (n0)),                                      \
 127              "r" ((USItype) (d)))
 128 #define count_leading_zeros(count, x) \
 129     __asm__ ("clz %0,%1"                                                \
 130              : "=r" ((USItype) (count))                                 \
 131              : "r" ((USItype) (x)))
 132 #endif /* __a29k__ */
 133
 134 #if defined (__arm__)
 135 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 136   __asm__ ("adds        %1, %4, %5
 137         adc     %0, %2, %3"                                             \
 138            : "=r" ((USItype) (sh)),                                     \
 139              "=&r" ((USItype) (sl))                                     \
 140            : "%r" ((USItype) (ah)),                                     \
 141              "rI" ((USItype) (bh)),                                     \
 142              "%r" ((USItype) (al)),                                     \
 143              "rI" ((USItype) (bl)))
 144 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 145   __asm__ ("subs        %1, %4, %5
 146         sbc     %0, %2, %3"                                             \
 147            : "=r" ((USItype) (sh)),                                     \
 148              "=&r" ((USItype) (sl))                                     \
 149            : "r" ((USItype) (ah)),                                      \
 150              "rI" ((USItype) (bh)),                                     \
 151              "r" ((USItype) (al)),                                      \
 152              "rI" ((USItype) (bl)))
 153 #define umul_ppmm(xh, xl, a, b) \
 154 {register USItype __t0, __t1, __t2;                                     \
 155   __asm__ ("%@ Inlined umul_ppmm
 156         mov     %2, %5, lsr #16
 157         mov     %0, %6, lsr #16
 158         bic     %3, %5, %2, lsl #16
 159         bic     %4, %6, %0, lsl #16
 160         mul     %1, %3, %4
 161         mul     %4, %2, %4
 162         mul     %3, %0, %3
 163         mul     %0, %2, %0
 164         adds    %3, %4, %3
 165         addcs   %0, %0, #65536
 166         adds    %1, %1, %3, lsl #16
 167         adc     %0, %0, %3, lsr #16"                                    \
 168            : "=&r" ((USItype) (xh)),                                    \
 169              "=r" ((USItype) (xl)),                                     \
 170              "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                    \
 171            : "r" ((USItype) (a)),                                       \
 172              "r" ((USItype) (b)));}
 173 #define UMUL_TIME 20
 174 #define UDIV_TIME 100
 175 #endif /* __arm__ */
 176
 177 #if defined (__clipper__)
 178 #define umul_ppmm(w1, w0, u, v) \
 179   ({union {UDItype __ll;                                                \
 180            struct {USItype __l, __h;} __i;                              \
 181           } __xx;                                                       \
 182   __asm__ ("mulwux %2,%0"                                               \
 183            : "=r" (__xx.__ll)                                           \
 184            : "%0" ((USItype) (u)),                                      \
 185              "r" ((USItype) (v)));                                      \
 186   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 187 #define smul_ppmm(w1, w0, u, v) \
 188   ({union {DItype __ll;                                                 \
 189            struct {SItype __l, __h;} __i;                               \
 190           } __xx;                                                       \
 191   __asm__ ("mulwx %2,%0"                                                \
 192            : "=r" (__xx.__ll)                                           \
 193            : "%0" ((SItype) (u)),                                       \
 194              "r" ((SItype) (v)));                                       \
 195   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 196 #define __umulsidi3(u, v) \
 197   ({UDItype __w;                                                        \
 198     __asm__ ("mulwux %2,%0"                                             \
 199              : "=r" (__w)                                               \
 200              : "%0" ((USItype) (u)),                                    \
 201                "r" ((USItype) (v)));                                    \
 202     __w; })
 203 #endif /* __clipper__ */
 204
 205 #if defined (__gmicro__)
 206 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 207   __asm__ ("add.w %5,%1
 208         addx %3,%0"                                                     \
 209            : "=g" ((USItype) (sh)),                                     \
 210              "=&g" ((USItype) (sl))                                     \
 211            : "%0" ((USItype) (ah)),                                     \
 212              "g" ((USItype) (bh)),                                      \
 213              "%1" ((USItype) (al)),                                     \
 214              "g" ((USItype) (bl)))
 215 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 216   __asm__ ("sub.w %5,%1
 217         subx %3,%0"                                                     \
 218            : "=g" ((USItype) (sh)),                                     \
 219              "=&g" ((USItype) (sl))                                     \
 220            : "0" ((USItype) (ah)),                                      \
 221              "g" ((USItype) (bh)),                                      \
 222              "1" ((USItype) (al)),                                      \
 223              "g" ((USItype) (bl)))
 224 #define umul_ppmm(ph, pl, m0, m1) \
 225   __asm__ ("mulx %3,%0,%1"                                              \
 226            : "=g" ((USItype) (ph)),                                     \
 227              "=r" ((USItype) (pl))                                      \
 228            : "%0" ((USItype) (m0)),                                     \
 229              "g" ((USItype) (m1)))
 230 #define udiv_qrnnd(q, r, nh, nl, d) \
 231   __asm__ ("divx %4,%0,%1"                                              \
 232            : "=g" ((USItype) (q)),                                      \
 233              "=r" ((USItype) (r))                                       \
 234            : "1" ((USItype) (nh)),                                      \
 235              "0" ((USItype) (nl)),                                      \
 236              "g" ((USItype) (d)))
 237 #define count_leading_zeros(count, x) \
 238   __asm__ ("bsch/1 %1,%0"                                               \
 239            : "=g" (count)                                               \
 240            : "g" ((USItype) (x)),                                       \
 241              "0" ((USItype) 0))
 242 #endif
 243
 244 #if defined (__hppa)
 245 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 246   __asm__ ("add %4,%5,%1
 247         addc %2,%3,%0"                                                  \
 248            : "=r" ((USItype) (sh)),                                     \
 249              "=&r" ((USItype) (sl))                                     \
 250            : "%rM" ((USItype) (ah)),                                    \
 251              "rM" ((USItype) (bh)),                                     \
 252              "%rM" ((USItype) (al)),                                    \
 253              "rM" ((USItype) (bl)))
 254 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 255   __asm__ ("sub %4,%5,%1
 256         subb %2,%3,%0"                                                  \
 257            : "=r" ((USItype) (sh)),                                     \
 258              "=&r" ((USItype) (sl))                                     \
 259            : "rM" ((USItype) (ah)),                                     \
 260              "rM" ((USItype) (bh)),                                     \
 261              "rM" ((USItype) (al)),                                     \
 262              "rM" ((USItype) (bl)))
 263 #if defined (_PA_RISC1_1)
 264 #define umul_ppmm(w1, w0, u, v) \
 265   do {                                                                  \
 266     union                                                               \
 267       {                                                                 \
 268         UDItype __f;                                                    \
 269         struct {USItype __w1, __w0;} __w1w0;                            \
 270       } __t;                                                            \
 271     __asm__ ("xmpyu %1,%2,%0"                                           \
 272              : "=x" (__t.__f)                                           \
 273              : "x" ((USItype) (u)),                                     \
 274                "x" ((USItype) (v)));                                    \
 275     (w1) = __t.__w1w0.__w1;                                             \
 276     (w0) = __t.__w1w0.__w0;                                             \
 277      } while (0)
 278 #define UMUL_TIME 8
 279 #else
 280 #define UMUL_TIME 30
 281 #endif
 282 #define UDIV_TIME 40
 283 #define count_leading_zeros(count, x) \
 284   do {                                                                  \
 285     USItype __tmp;                                                      \
 286     __asm__ (                                                           \
 287        "ldi             1,%0
 288         extru,=         %1,15,16,%%r0           ; Bits 31..16 zero?
 289         extru,tr        %1,15,16,%1             ; No.  Shift down, skip add.
 290         ldo             16(%0),%0               ; Yes.  Perform add.
 291         extru,=         %1,23,8,%%r0            ; Bits 15..8 zero?
 292         extru,tr        %1,23,8,%1              ; No.  Shift down, skip add.
 293         ldo             8(%0),%0                ; Yes.  Perform add.
 294         extru,=         %1,27,4,%%r0            ; Bits 7..4 zero?
 295         extru,tr        %1,27,4,%1              ; No.  Shift down, skip add.
 296         ldo             4(%0),%0                ; Yes.  Perform add.
 297         extru,=         %1,29,2,%%r0            ; Bits 3..2 zero?
 298         extru,tr        %1,29,2,%1              ; No.  Shift down, skip add.
 299         ldo             2(%0),%0                ; Yes.  Perform add.
 300         extru           %1,30,1,%1              ; Extract bit 1.
 301         sub             %0,%1,%0                ; Subtract it.
 302         " : "=r" (count), "=r" (__tmp) : "1" (x));                      \
 303   } while (0)
 304 #endif
 305
 306 #if defined (__i386__) || defined (__i486__)
 307 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 308   __asm__ ("addl %5,%1
 309         adcl %3,%0"                                                     \
 310            : "=r" ((USItype) (sh)),                                     \
 311              "=&r" ((USItype) (sl))                                     \
 312            : "%0" ((USItype) (ah)),                                     \
 313              "g" ((USItype) (bh)),                                      \
 314              "%1" ((USItype) (al)),                                     \
 315              "g" ((USItype) (bl)))
 316 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 317   __asm__ ("subl %5,%1
 318         sbbl %3,%0"                                                     \
 319            : "=r" ((USItype) (sh)),                                     \
 320              "=&r" ((USItype) (sl))                                     \
 321            : "0" ((USItype) (ah)),                                      \
 322              "g" ((USItype) (bh)),                                      \
 323              "1" ((USItype) (al)),                                      \
 324              "g" ((USItype) (bl)))
 325 #define umul_ppmm(w1, w0, u, v) \
 326   __asm__ ("mull %3"                                                    \
 327            : "=a" ((USItype) (w0)),                                     \
 328              "=d" ((USItype) (w1))                                      \
 329            : "%0" ((USItype) (u)),                                      \
 330              "rm" ((USItype) (v)))
 331 #define udiv_qrnnd(q, r, n1, n0, d) \
 332   __asm__ ("divl %4"                                                    \
 333            : "=a" ((USItype) (q)),                                      \
 334              "=d" ((USItype) (r))                                       \
 335            : "0" ((USItype) (n0)),                                      \
 336              "1" ((USItype) (n1)),                                      \
 337              "rm" ((USItype) (d)))
 338 #define count_leading_zeros(count, x) \
 339   do {                                                                  \
 340     USItype __cbtmp;                                                    \
 341     __asm__ ("bsrl %1,%0"                                               \
 342              : "=r" (__cbtmp) : "rm" ((USItype) (x)));                  \
 343     (count) = __cbtmp ^ 31;                                             \
 344   } while (0)
 345 #define UMUL_TIME 40
 346 #define UDIV_TIME 40
 347 #endif /* 80x86 */
 348
 349 #if defined (__i860__)
 350 #if 0
 351 /* Make sure these patterns really improve the code before
 352    switching them on.  */
 353 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 354   do {                                                                  \
 355     union                                                               \
 356       {                                                                 \
 357         DItype __ll;                                                    \
 358         struct {USItype __l, __h;} __i;                                 \
 359       }  __a, __b, __s;                                                 \
 360     __a.__i.__l = (al);                                                 \
 361     __a.__i.__h = (ah);                                                 \
 362     __b.__i.__l = (bl);                                                 \
 363     __b.__i.__h = (bh);                                                 \
 364     __asm__ ("fiadd.dd %1,%2,%0"                                        \
 365              : "=f" (__s.__ll)                                          \
 366              : "%f" (__a.__ll), "f" (__b.__ll));                        \
 367     (sh) = __s.__i.__h;                                                 \
 368     (sl) = __s.__i.__l;                                                 \
 369     } while (0)
 370 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 371   do {                                                                  \
 372     union                                                               \
 373       {                                                                 \
 374         DItype __ll;                                                    \
 375         struct {USItype __l, __h;} __i;                                 \
 376       }  __a, __b, __s;                                                 \
 377     __a.__i.__l = (al);                                                 \
 378     __a.__i.__h = (ah);                                                 \
 379     __b.__i.__l = (bl);                                                 \
 380     __b.__i.__h = (bh);                                                 \
 381     __asm__ ("fisub.dd %1,%2,%0"                                        \
 382              : "=f" (__s.__ll)                                          \
 383              : "%f" (__a.__ll), "f" (__b.__ll));                        \
 384     (sh) = __s.__i.__h;                                                 \
 385     (sl) = __s.__i.__l;                                                 \
 386     } while (0)
 387 #endif
 388 #endif /* __i860__ */
 389
 390 #if defined (__i960__)
 391 #define umul_ppmm(w1, w0, u, v) \
 392   ({union {UDItype __ll;                                                \
 393            struct {USItype __l, __h;} __i;                              \
 394           } __xx;                                                       \
 395   __asm__ ("emul        %2,%1,%0"                                       \
 396            : "=d" (__xx.__ll)                                           \
 397            : "%dI" ((USItype) (u)),                                     \
 398              "dI" ((USItype) (v)));                                     \
 399   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 400 #define __umulsidi3(u, v) \
 401   ({UDItype __w;                                                        \
 402     __asm__ ("emul      %2,%1,%0"                                       \
 403              : "=d" (__w)                                               \
 404              : "%dI" ((USItype) (u)),                                   \
 405                "dI" ((USItype) (v)));                                   \
 406     __w; })
 407 #endif /* __i960__ */
 408
 409 #if defined (__mc68000__)
 410 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 411   __asm__ ("add%.l %5,%1
 412         addx%.l %3,%0"                                                  \
 413            : "=d" ((USItype) (sh)),                                     \
 414              "=&d" ((USItype) (sl))                                     \
 415            : "%0" ((USItype) (ah)),                                     \
 416              "d" ((USItype) (bh)),                                      \
 417              "%1" ((USItype) (al)),                                     \
 418              "g" ((USItype) (bl)))
 419 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 420   __asm__ ("sub%.l %5,%1
 421         subx%.l %3,%0"                                                  \
 422            : "=d" ((USItype) (sh)),                                     \
 423              "=&d" ((USItype) (sl))                                     \
 424            : "0" ((USItype) (ah)),                                      \
 425              "d" ((USItype) (bh)),                                      \
 426              "1" ((USItype) (al)),                                      \
 427              "g" ((USItype) (bl)))
 428
 429 /* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r. */
 430 #if defined (__mc68020__) || defined(mc68020) \
 431         || defined(__mc68030__) || defined(mc68030) \
 432         || defined(__mc68040__) || defined(mc68040) \
 433         || defined(__mc68332__) || defined(mc68332) \
 434         || defined(__NeXT__)
 435 #define umul_ppmm(w1, w0, u, v) \
 436   __asm__ ("mulu%.l %3,%1:%0"                                           \
 437            : "=d" ((USItype) (w0)),                                     \
 438              "=d" ((USItype) (w1))                                      \
 439            : "%0" ((USItype) (u)),                                      \
 440              "dmi" ((USItype) (v)))
 441 #define UMUL_TIME 45
 442 #define udiv_qrnnd(q, r, n1, n0, d) \
 443   __asm__ ("divu%.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 UDIV_TIME 90
 450 #define sdiv_qrnnd(q, r, n1, n0, d) \
 451   __asm__ ("divs%.l %4,%1:%0"                                           \
 452            : "=d" ((USItype) (q)),                                      \
 453              "=d" ((USItype) (r))                                       \
 454            : "0" ((USItype) (n0)),                                      \
 455              "1" ((USItype) (n1)),                                      \
 456              "dmi" ((USItype) (d)))
 457
 458 #else /* not mc68020 */
 459 #if !defined(__mcf5200__)
 460 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX.  */
 461 #define umul_ppmm(xh, xl, a, b) \
 462   __asm__ ("| Inlined umul_ppmm
 463         move%.l %2,%/d0
 464         move%.l %3,%/d1
 465         move%.l %/d0,%/d2
 466         swap    %/d0
 467         move%.l %/d1,%/d3
 468         swap    %/d1
 469         move%.w %/d2,%/d4
 470         mulu    %/d3,%/d4
 471         mulu    %/d1,%/d2
 472         mulu    %/d0,%/d3
 473         mulu    %/d0,%/d1
 474         move%.l %/d4,%/d0
 475         eor%.w  %/d0,%/d0
 476         swap    %/d0
 477         add%.l  %/d0,%/d2
 478         add%.l  %/d3,%/d2
 479         jcc     1f
 480         add%.l  %#65536,%/d1
 481 1:      swap    %/d2
 482         moveq   %#0,%/d0
 483         move%.w %/d2,%/d0
 484         move%.w %/d4,%/d2
 485         move%.l %/d2,%1
 486         add%.l  %/d1,%/d0
 487         move%.l %/d0,%0"                                                \
 488            : "=g" ((USItype) (xh)),                                     \
 489              "=g" ((USItype) (xl))                                      \
 490            : "g" ((USItype) (a)),                                       \
 491              "g" ((USItype) (b))                                        \
 492            : "d0", "d1", "d2", "d3", "d4")
 493 #define UMUL_TIME 100
 494 #define UDIV_TIME 400
 495 #endif /* not mcf5200 */
 496 #endif /* not mc68020 */
 497
 498 /* The '020, '030, '040 and '060 have bitfield insns. */
 499 #if defined (__mc68020__) || defined(mc68020) \
 500         || defined(__mc68030__) || defined(mc68030) \
 501         || defined(__mc68040__) || defined(mc68040) \
 502         || defined(__mc68060__) || defined(mc68060) \
 503         || defined(__NeXT__)
 504 #define count_leading_zeros(count, x) \
 505   __asm__ ("bfffo %1{%b2:%b2},%0"                                       \
 506            : "=d" ((USItype) (count))                                   \
 507            : "od" ((USItype) (x)), "n" (0))
 508 #endif
 509 #endif /* mc68000 */
 510
 511 #if defined (__m88000__)
 512 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 513   __asm__ ("addu.co %1,%r4,%r5
 514         addu.ci %0,%r2,%r3"                                             \
 515            : "=r" ((USItype) (sh)),                                     \
 516              "=&r" ((USItype) (sl))                                     \
 517            : "%rJ" ((USItype) (ah)),                                    \
 518              "rJ" ((USItype) (bh)),                                     \
 519              "%rJ" ((USItype) (al)),                                    \
 520              "rJ" ((USItype) (bl)))
 521 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 522   __asm__ ("subu.co %1,%r4,%r5
 523         subu.ci %0,%r2,%r3"                                             \
 524            : "=r" ((USItype) (sh)),                                     \
 525              "=&r" ((USItype) (sl))                                     \
 526            : "rJ" ((USItype) (ah)),                                     \
 527              "rJ" ((USItype) (bh)),                                     \
 528              "rJ" ((USItype) (al)),                                     \
 529              "rJ" ((USItype) (bl)))
 530 #define count_leading_zeros(count, x) \
 531   do {                                                                  \
 532     USItype __cbtmp;                                                    \
 533     __asm__ ("ff1 %0,%1"                                                \
 534              : "=r" (__cbtmp)                                           \
 535              : "r" ((USItype) (x)));                                    \
 536     (count) = __cbtmp ^ 31;                                             \
 537   } while (0)
 538 #if defined (__mc88110__)
 539 #define umul_ppmm(wh, wl, u, v) \
 540   do {                                                                  \
 541     union {UDItype __ll;                                                \
 542            struct {USItype __h, __l;} __i;                              \
 543           } __xx;                                                       \
 544     __asm__ ("mulu.d    %0,%1,%2"                                       \
 545              : "=r" (__xx.__ll)                                         \
 546              : "r" ((USItype) (u)),                                     \
 547                "r" ((USItype) (v)));                                    \
 548     (wh) = __xx.__i.__h;                                                \
 549     (wl) = __xx.__i.__l;                                                \
 550   } while (0)
 551 #define udiv_qrnnd(q, r, n1, n0, d) \
 552   ({union {UDItype __ll;                                                \
 553            struct {USItype __h, __l;} __i;                              \
 554           } __xx;                                                       \
 555   USItype __q;                                                          \
 556   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 557   __asm__ ("divu.d %0,%1,%2"                                            \
 558            : "=r" (__q)                                                 \
 559            : "r" (__xx.__ll),                                           \
 560              "r" ((USItype) (d)));                                      \
 561   (r) = (n0) - __q * (d); (q) = __q; })
 562 #define UMUL_TIME 5
 563 #define UDIV_TIME 25
 564 #else
 565 #define UMUL_TIME 17
 566 #define UDIV_TIME 150
 567 #endif /* __mc88110__ */
 568 #endif /* __m88000__ */
 569
 570 #if defined (__mips__)
 571 #define umul_ppmm(w1, w0, u, v) \
 572   __asm__ ("multu %2,%3"                                                \
 573            : "=l" ((USItype) (w0)),                                     \
 574              "=h" ((USItype) (w1))                                      \
 575            : "d" ((USItype) (u)),                                       \
 576              "d" ((USItype) (v)))
 577 #define UMUL_TIME 10
 578 #define UDIV_TIME 100
 579 #endif /* __mips__ */
 580
 581 #if defined (__ns32000__)
 582 #define umul_ppmm(w1, w0, u, v) \
 583   ({union {UDItype __ll;                                                \
 584            struct {USItype __l, __h;} __i;                              \
 585           } __xx;                                                       \
 586   __asm__ ("meid %2,%0"                                                 \
 587            : "=g" (__xx.__ll)                                           \
 588            : "%0" ((USItype) (u)),                                      \
 589              "g" ((USItype) (v)));                                      \
 590   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 591 #define __umulsidi3(u, v) \
 592   ({UDItype __w;                                                        \
 593     __asm__ ("meid %2,%0"                                               \
 594              : "=g" (__w)                                               \
 595              : "%0" ((USItype) (u)),                                    \
 596                "g" ((USItype) (v)));                                    \
 597     __w; })
 598 #define udiv_qrnnd(q, r, n1, n0, d) \
 599   ({union {UDItype __ll;                                                \
 600            struct {USItype __l, __h;} __i;                              \
 601           } __xx;                                                       \
 602   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 603   __asm__ ("deid %2,%0"                                                 \
 604            : "=g" (__xx.__ll)                                           \
 605            : "0" (__xx.__ll),                                           \
 606              "g" ((USItype) (d)));                                      \
 607   (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
 608 #endif /* __ns32000__ */
 609
 610 #if (defined (_ARCH_PPC) || defined (_IBMR2)) && W_TYPE_SIZE == 32
 611 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 612   do {                                                                  \
 613     if (__builtin_constant_p (bh) && (bh) == 0)                         \
 614       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
 615              : "=r" ((USItype) (sh)),                                   \
 616                "=&r" ((USItype) (sl))                                   \
 617              : "%r" ((USItype) (ah)),                                   \
 618                "%r" ((USItype) (al)),                                   \
 619                "rI" ((USItype) (bl)));                                  \
 620     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
 621       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
 622              : "=r" ((USItype) (sh)),                                   \
 623                "=&r" ((USItype) (sl))                                   \
 624              : "%r" ((USItype) (ah)),                                   \
 625                "%r" ((USItype) (al)),                                   \
 626                "rI" ((USItype) (bl)));                                  \
 627     else                                                                \
 628       __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
 629              : "=r" ((USItype) (sh)),                                   \
 630                "=&r" ((USItype) (sl))                                   \
 631              : "%r" ((USItype) (ah)),                                   \
 632                "r" ((USItype) (bh)),                                    \
 633                "%r" ((USItype) (al)),                                   \
 634                "rI" ((USItype) (bl)));                                  \
 635   } while (0)
 636 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 637   do {                                                                  \
 638     if (__builtin_constant_p (ah) && (ah) == 0)                         \
 639       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"       \
 640                : "=r" ((USItype) (sh)),                                 \
 641                  "=&r" ((USItype) (sl))                                 \
 642                : "r" ((USItype) (bh)),                                  \
 643                  "rI" ((USItype) (al)),                                 \
 644                  "r" ((USItype) (bl)));                                 \
 645     else if (__builtin_constant_p (ah) && (ah) ==~(USItype) 0)          \
 646       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"       \
 647                : "=r" ((USItype) (sh)),                                 \
 648                  "=&r" ((USItype) (sl))                                 \
 649                : "r" ((USItype) (bh)),                                  \
 650                  "rI" ((USItype) (al)),                                 \
 651                  "r" ((USItype) (bl)));                                 \
 652     else if (__builtin_constant_p (bh) && (bh) == 0)                    \
 653       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
 654                : "=r" ((USItype) (sh)),                                 \
 655                  "=&r" ((USItype) (sl))                                 \
 656                : "r" ((USItype) (ah)),                                  \
 657                  "rI" ((USItype) (al)),                                 \
 658                  "r" ((USItype) (bl)));                                 \
 659     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
 660       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
 661                : "=r" ((USItype) (sh)),                                 \
 662                  "=&r" ((USItype) (sl))                                 \
 663                : "r" ((USItype) (ah)),                                  \
 664                  "rI" ((USItype) (al)),                                 \
 665                  "r" ((USItype) (bl)));                                 \
 666     else                                                                \
 667       __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
 668                : "=r" ((USItype) (sh)),                                 \
 669                  "=&r" ((USItype) (sl))                                 \
 670                : "r" ((USItype) (ah)),                                  \
 671                  "r" ((USItype) (bh)),                                  \
 672                  "rI" ((USItype) (al)),                                 \
 673                  "r" ((USItype) (bl)));                                 \
 674   } while (0)
 675 #define count_leading_zeros(count, x) \
 676   __asm__ ("{cntlz|cntlzw} %0,%1"                                       \
 677            : "=r" ((USItype) (count))                                   \
 678            : "r" ((USItype) (x)))
 679 #if defined (_ARCH_PPC)
 680 #define umul_ppmm(ph, pl, m0, m1) \
 681   do {                                                                  \
 682     USItype __m0 = (m0), __m1 = (m1);                                   \
 683     __asm__ ("mulhwu %0,%1,%2"                                          \
 684              : "=r" ((USItype) ph)                                      \
 685              : "%r" (__m0),                                             \
 686                "r" (__m1));                                             \
 687     (pl) = __m0 * __m1;                                                 \
 688   } while (0)
 689 #define UMUL_TIME 15
 690 #define smul_ppmm(ph, pl, m0, m1) \
 691   do {                                                                  \
 692     SItype __m0 = (m0), __m1 = (m1);                                    \
 693     __asm__ ("mulhw %0,%1,%2"                                           \
 694              : "=r" ((SItype) ph)                                       \
 695              : "%r" (__m0),                                             \
 696                "r" (__m1));                                             \
 697     (pl) = __m0 * __m1;                                                 \
 698   } while (0)
 699 #define SMUL_TIME 14
 700 #define UDIV_TIME 120
 701 #else
 702 #define umul_ppmm(xh, xl, m0, m1) \
 703   do {                                                                  \
 704     USItype __m0 = (m0), __m1 = (m1);                                   \
 705     __asm__ ("mul %0,%2,%3"                                             \
 706              : "=r" ((USItype) (xh)),                                   \
 707                "=q" ((USItype) (xl))                                    \
 708              : "r" (__m0),                                              \
 709                "r" (__m1));                                             \
 710     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
 711              + (((SItype) __m1 >> 31) & __m0));                         \
 712   } while (0)
 713 #define UMUL_TIME 8
 714 #define smul_ppmm(xh, xl, m0, m1) \
 715   __asm__ ("mul %0,%2,%3"                                               \
 716            : "=r" ((SItype) (xh)),                                      \
 717              "=q" ((SItype) (xl))                                       \
 718            : "r" (m0),                                                  \
 719              "r" (m1))
 720 #define SMUL_TIME 4
 721 #define sdiv_qrnnd(q, r, nh, nl, d) \
 722   __asm__ ("div %0,%2,%4"                                               \
 723            : "=r" ((SItype) (q)), "=q" ((SItype) (r))                   \
 724            : "r" ((SItype) (nh)), "1" ((SItype) (nl)), "r" ((SItype) (d)))
 725 #define UDIV_TIME 100
 726 #endif
 727 #endif /* Power architecture variants.  */
 728
 729 #if defined (__pyr__)
 730 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 731   __asm__ ("addw        %5,%1
 732         addwc   %3,%0"                                                  \
 733            : "=r" ((USItype) (sh)),                                     \
 734              "=&r" ((USItype) (sl))                                     \
 735            : "%0" ((USItype) (ah)),                                     \
 736              "g" ((USItype) (bh)),                                      \
 737              "%1" ((USItype) (al)),                                     \
 738              "g" ((USItype) (bl)))
 739 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 740   __asm__ ("subw        %5,%1
 741         subwb   %3,%0"                                                  \
 742            : "=r" ((USItype) (sh)),                                     \
 743              "=&r" ((USItype) (sl))                                     \
 744            : "0" ((USItype) (ah)),                                      \
 745              "g" ((USItype) (bh)),                                      \
 746              "1" ((USItype) (al)),                                      \
 747              "g" ((USItype) (bl)))
 748 /* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP.  */
 749 #define umul_ppmm(w1, w0, u, v) \
 750   ({union {UDItype __ll;                                                \
 751            struct {USItype __h, __l;} __i;                              \
 752           } __xx;                                                       \
 753   __asm__ ("movw %1,%R0
 754         uemul %2,%0"                                                    \
 755            : "=&r" (__xx.__ll)                                          \
 756            : "g" ((USItype) (u)),                                       \
 757              "g" ((USItype) (v)));                                      \
 758   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 759 #endif /* __pyr__ */
 760
 761 #if defined (__ibm032__) /* RT/ROMP */
 762 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 763   __asm__ ("a %1,%5
 764         ae %0,%3"                                                       \
 765            : "=r" ((USItype) (sh)),                                     \
 766              "=&r" ((USItype) (sl))                                     \
 767            : "%0" ((USItype) (ah)),                                     \
 768              "r" ((USItype) (bh)),                                      \
 769              "%1" ((USItype) (al)),                                     \
 770              "r" ((USItype) (bl)))
 771 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 772   __asm__ ("s %1,%5
 773         se %0,%3"                                                       \
 774            : "=r" ((USItype) (sh)),                                     \
 775              "=&r" ((USItype) (sl))                                     \
 776            : "0" ((USItype) (ah)),                                      \
 777              "r" ((USItype) (bh)),                                      \
 778              "1" ((USItype) (al)),                                      \
 779              "r" ((USItype) (bl)))
 780 #define umul_ppmm(ph, pl, m0, m1) \
 781   do {                                                                  \
 782     USItype __m0 = (m0), __m1 = (m1);                                   \
 783     __asm__ (                                                           \
 784        "s       r2,r2
 785         mts     r10,%2
 786         m       r2,%3
 787         m       r2,%3
 788         m       r2,%3
 789         m       r2,%3
 790         m       r2,%3
 791         m       r2,%3
 792         m       r2,%3
 793         m       r2,%3
 794         m       r2,%3
 795         m       r2,%3
 796         m       r2,%3
 797         m       r2,%3
 798         m       r2,%3
 799         m       r2,%3
 800         m       r2,%3
 801         m       r2,%3
 802         cas     %0,r2,r0
 803         mfs     r10,%1"                                                 \
 804              : "=r" ((USItype) (ph)),                                   \
 805                "=r" ((USItype) (pl))                                    \
 806              : "%r" (__m0),                                             \
 807                 "r" (__m1)                                              \
 808              : "r2");                                                   \
 809     (ph) += ((((SItype) __m0 >> 31) & __m1)                             \
 810              + (((SItype) __m1 >> 31) & __m0));                         \
 811   } while (0)
 812 #define UMUL_TIME 20
 813 #define UDIV_TIME 200
 814 #define count_leading_zeros(count, x) \
 815   do {                                                                  \
 816     if ((x) >= 0x10000)                                                 \
 817       __asm__ ("clz     %0,%1"                                          \
 818                : "=r" ((USItype) (count))                               \
 819                : "r" ((USItype) (x) >> 16));                            \
 820     else                                                                \
 821       {                                                                 \
 822         __asm__ ("clz   %0,%1"                                          \
 823                  : "=r" ((USItype) (count))                             \
 824                  : "r" ((USItype) (x)));                                        \
 825         (count) += 16;                                                  \
 826       }                                                                 \
 827   } while (0)
 828 #endif
 829
 830 #if defined (__sparc__)
 831 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 832   __asm__ ("addcc %r4,%5,%1
 833         addx %r2,%3,%0"                                                 \
 834            : "=r" ((USItype) (sh)),                                     \
 835              "=&r" ((USItype) (sl))                                     \
 836            : "%rJ" ((USItype) (ah)),                                    \
 837              "rI" ((USItype) (bh)),                                     \
 838              "%rJ" ((USItype) (al)),                                    \
 839              "rI" ((USItype) (bl))                                      \
 840            __CLOBBER_CC)
 841 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 842   __asm__ ("subcc %r4,%5,%1
 843         subx %r2,%3,%0"                                                 \
 844            : "=r" ((USItype) (sh)),                                     \
 845              "=&r" ((USItype) (sl))                                     \
 846            : "rJ" ((USItype) (ah)),                                     \
 847              "rI" ((USItype) (bh)),                                     \
 848              "rJ" ((USItype) (al)),                                     \
 849              "rI" ((USItype) (bl))                                      \
 850            __CLOBBER_CC)
 851 #if defined (__sparc_v8__)
 852 #define umul_ppmm(w1, w0, u, v) \
 853   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 854            : "=r" ((USItype) (w1)),                                     \
 855              "=r" ((USItype) (w0))                                      \
 856            : "r" ((USItype) (u)),                                       \
 857              "r" ((USItype) (v)))
 858 #define udiv_qrnnd(q, r, n1, n0, d) \
 859   __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
 860            : "=&r" ((USItype) (q)),                                     \
 861              "=&r" ((USItype) (r))                                      \
 862            : "r" ((USItype) (n1)),                                      \
 863              "r" ((USItype) (n0)),                                      \
 864              "r" ((USItype) (d)))
 865 #else
 866 #if defined (__sparclite__)
 867 /* This has hardware multiply but not divide.  It also has two additional
 868    instructions scan (ffs from high bit) and divscc.  */
 869 #define umul_ppmm(w1, w0, u, v) \
 870   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 871            : "=r" ((USItype) (w1)),                                     \
 872              "=r" ((USItype) (w0))                                      \
 873            : "r" ((USItype) (u)),                                       \
 874              "r" ((USItype) (v)))
 875 #define udiv_qrnnd(q, r, n1, n0, d) \
 876   __asm__ ("! Inlined udiv_qrnnd
 877         wr      %%g0,%2,%%y     ! Not a delayed write for sparclite
 878         tst     %%g0
 879         divscc  %3,%4,%%g1
 880         divscc  %%g1,%4,%%g1
 881         divscc  %%g1,%4,%%g1
 882         divscc  %%g1,%4,%%g1
 883         divscc  %%g1,%4,%%g1
 884         divscc  %%g1,%4,%%g1
 885         divscc  %%g1,%4,%%g1
 886         divscc  %%g1,%4,%%g1
 887         divscc  %%g1,%4,%%g1
 888         divscc  %%g1,%4,%%g1
 889         divscc  %%g1,%4,%%g1
 890         divscc  %%g1,%4,%%g1
 891         divscc  %%g1,%4,%%g1
 892         divscc  %%g1,%4,%%g1
 893         divscc  %%g1,%4,%%g1
 894         divscc  %%g1,%4,%%g1
 895         divscc  %%g1,%4,%%g1
 896         divscc  %%g1,%4,%%g1
 897         divscc  %%g1,%4,%%g1
 898         divscc  %%g1,%4,%%g1
 899         divscc  %%g1,%4,%%g1
 900         divscc  %%g1,%4,%%g1
 901         divscc  %%g1,%4,%%g1
 902         divscc  %%g1,%4,%%g1
 903         divscc  %%g1,%4,%%g1
 904         divscc  %%g1,%4,%%g1
 905         divscc  %%g1,%4,%%g1
 906         divscc  %%g1,%4,%%g1
 907         divscc  %%g1,%4,%%g1
 908         divscc  %%g1,%4,%%g1
 909         divscc  %%g1,%4,%%g1
 910         divscc  %%g1,%4,%0
 911         rd      %%y,%1
 912         bl,a 1f
 913         add     %1,%4,%1
 914 1:      ! End of inline udiv_qrnnd"                                     \
 915            : "=r" ((USItype) (q)),                                      \
 916              "=r" ((USItype) (r))                                       \
 917            : "r" ((USItype) (n1)),                                      \
 918              "r" ((USItype) (n0)),                                      \
 919              "rI" ((USItype) (d))                                       \
 920            : "%g1" __AND_CLOBBER_CC)
 921 #define UDIV_TIME 37
 922 #define count_leading_zeros(count, x) \
 923   __asm__ ("scan %1,0,%0"                                               \
 924            : "=r" ((USItype) (x))                                       \
 925            : "r" ((USItype) (count)))
 926 #else
 927 /* SPARC without integer multiplication and divide instructions.
 928    (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
 929 #define umul_ppmm(w1, w0, u, v) \
 930   __asm__ ("! Inlined umul_ppmm
 931         wr      %%g0,%2,%%y     ! SPARC has 0-3 delay insn after a wr
 932         sra     %3,31,%%g2      ! Don't move this insn
 933         and     %2,%%g2,%%g2    ! Don't move this insn
 934         andcc   %%g0,0,%%g1     ! Don't move this insn
 935         mulscc  %%g1,%3,%%g1
 936         mulscc  %%g1,%3,%%g1
 937         mulscc  %%g1,%3,%%g1
 938         mulscc  %%g1,%3,%%g1
 939         mulscc  %%g1,%3,%%g1
 940         mulscc  %%g1,%3,%%g1
 941         mulscc  %%g1,%3,%%g1
 942         mulscc  %%g1,%3,%%g1
 943         mulscc  %%g1,%3,%%g1
 944         mulscc  %%g1,%3,%%g1
 945         mulscc  %%g1,%3,%%g1
 946         mulscc  %%g1,%3,%%g1
 947         mulscc  %%g1,%3,%%g1
 948         mulscc  %%g1,%3,%%g1
 949         mulscc  %%g1,%3,%%g1
 950         mulscc  %%g1,%3,%%g1
 951         mulscc  %%g1,%3,%%g1
 952         mulscc  %%g1,%3,%%g1
 953         mulscc  %%g1,%3,%%g1
 954         mulscc  %%g1,%3,%%g1
 955         mulscc  %%g1,%3,%%g1
 956         mulscc  %%g1,%3,%%g1
 957         mulscc  %%g1,%3,%%g1
 958         mulscc  %%g1,%3,%%g1
 959         mulscc  %%g1,%3,%%g1
 960         mulscc  %%g1,%3,%%g1
 961         mulscc  %%g1,%3,%%g1
 962         mulscc  %%g1,%3,%%g1
 963         mulscc  %%g1,%3,%%g1
 964         mulscc  %%g1,%3,%%g1
 965         mulscc  %%g1,%3,%%g1
 966         mulscc  %%g1,%3,%%g1
 967         mulscc  %%g1,0,%%g1
 968         add     %%g1,%%g2,%0
 969         rd      %%y,%1"                                                 \
 970            : "=r" ((USItype) (w1)),                                     \
 971              "=r" ((USItype) (w0))                                      \
 972            : "%rI" ((USItype) (u)),                                     \
 973              "r" ((USItype) (v))                                                \
 974            : "%g1", "%g2" __AND_CLOBBER_CC)
 975 #define UMUL_TIME 39            /* 39 instructions */
 976 /* It's quite necessary to add this much assembler for the sparc.
 977    The default udiv_qrnnd (in C) is more than 10 times slower!  */
 978 #define udiv_qrnnd(q, r, n1, n0, d) \
 979   __asm__ ("! Inlined udiv_qrnnd
 980         mov     32,%%g1
 981         subcc   %1,%2,%%g0
 982 1:      bcs     5f
 983          addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb
 984         sub     %1,%2,%1        ! this kills msb of n
 985         addx    %1,%1,%1        ! so this can't give carry
 986         subcc   %%g1,1,%%g1
 987 2:      bne     1b
 988          subcc  %1,%2,%%g0
 989         bcs     3f
 990          addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb
 991         b       3f
 992          sub    %1,%2,%1        ! this kills msb of n
 993 4:      sub     %1,%2,%1
 994 5:      addxcc  %1,%1,%1
 995         bcc     2b
 996          subcc  %%g1,1,%%g1
 997 ! Got carry from n.  Subtract next step to cancel this carry.
 998         bne     4b
 999          addcc  %0,%0,%0        ! shift n1n0 and a 0-bit in lsb
1000         sub     %1,%2,%1
1001 3:      xnor    %0,0,%0
1002         ! End of inline udiv_qrnnd"                                     \
1003            : "=&r" ((USItype) (q)),                                     \
1004              "=&r" ((USItype) (r))                                      \
1005            : "r" ((USItype) (d)),                                       \
1006              "1" ((USItype) (n1)),                                      \
1007              "0" ((USItype) (n0)) : "%g1" __AND_CLOBBER_CC)
1008 #define UDIV_TIME (3+7*32)      /* 7 instructions/iteration. 32 iterations. */
1009 #endif /* __sparclite__ */
1010 #endif /* __sparc_v8__ */
1011 #endif /* __sparc__ */
1012
1013 #if defined (__vax__)
1014 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1015   __asm__ ("addl2 %5,%1
1016         adwc %3,%0"                                                     \
1017            : "=g" ((USItype) (sh)),                                     \
1018              "=&g" ((USItype) (sl))                                     \
1019            : "%0" ((USItype) (ah)),                                     \
1020              "g" ((USItype) (bh)),                                      \
1021              "%1" ((USItype) (al)),                                     \
1022              "g" ((USItype) (bl)))
1023 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1024   __asm__ ("subl2 %5,%1
1025         sbwc %3,%0"                                                     \
1026            : "=g" ((USItype) (sh)),                                     \
1027              "=&g" ((USItype) (sl))                                     \
1028            : "0" ((USItype) (ah)),                                      \
1029              "g" ((USItype) (bh)),                                      \
1030              "1" ((USItype) (al)),                                      \
1031              "g" ((USItype) (bl)))
1032 #define umul_ppmm(xh, xl, m0, m1) \
1033   do {                                                                  \
1034     union {                                                             \
1035         UDItype __ll;                                                   \
1036         struct {USItype __l, __h;} __i;                                 \
1037       } __xx;                                                           \
1038     USItype __m0 = (m0), __m1 = (m1);                                   \
1039     __asm__ ("emul %1,%2,$0,%0"                                         \
1040              : "=r" (__xx.__ll)                                         \
1041              : "g" (__m0),                                              \
1042                "g" (__m1));                                             \
1043     (xh) = __xx.__i.__h;                                                \
1044     (xl) = __xx.__i.__l;                                                \
1045     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
1046              + (((SItype) __m1 >> 31) & __m0));                         \
1047   } while (0)
1048 #define sdiv_qrnnd(q, r, n1, n0, d) \
1049   do {                                                                  \
1050     union {DItype __ll;                                                 \
1051            struct {SItype __l, __h;} __i;                               \
1052           } __xx;                                                       \
1053     __xx.__i.__h = n1; __xx.__i.__l = n0;                               \
1054     __asm__ ("ediv %3,%2,%0,%1"                                         \
1055              : "=g" (q), "=g" (r)                                       \
1056              : "g" (__xx.__ll), "g" (d));                               \
1057   } while (0)
1058 #endif /* __vax__ */
1059
1060 #endif /* __GNUC__ */
1061
1062 /* If this machine has no inline assembler, use C macros.  */
1063
1064 #if !defined (add_ssaaaa)
1065 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1066   do {                                                                  \
1067     USItype __x;                                                        \
1068     __x = (al) + (bl);                                                  \
1069     (sh) = (ah) + (bh) + (__x < (al));                                  \
1070     (sl) = __x;                                                         \
1071   } while (0)
1072 #endif
1073
1074 #if !defined (sub_ddmmss)
1075 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1076   do {                                                                  \
1077     USItype __x;                                                        \
1078     __x = (al) - (bl);                                                  \
1079     (sh) = (ah) - (bh) - (__x > (al));                                  \
1080     (sl) = __x;                                                         \
1081   } while (0)
1082 #endif
1083
1084 #if !defined (umul_ppmm)
1085 #define umul_ppmm(w1, w0, u, v)                                         \
1086   do {                                                                  \
1087     USItype __x0, __x1, __x2, __x3;                                     \
1088     USItype __ul, __vl, __uh, __vh;                                     \
1089                                                                         \
1090     __ul = __ll_lowpart (u);                                            \
1091     __uh = __ll_highpart (u);                                           \
1092     __vl = __ll_lowpart (v);                                            \
1093     __vh = __ll_highpart (v);                                           \
1094                                                                         \
1095     __x0 = (USItype) __ul * __vl;                                       \
1096     __x1 = (USItype) __ul * __vh;                                       \
1097     __x2 = (USItype) __uh * __vl;                                       \
1098     __x3 = (USItype) __uh * __vh;                                       \
1099                                                                         \
1100     __x1 += __ll_highpart (__x0);/* this can't give carry */            \
1101     __x1 += __x2;               /* but this indeed can */               \
1102     if (__x1 < __x2)            /* did we get it? */                    \
1103       __x3 += __ll_B;           /* yes, add it in the proper pos. */    \
1104                                                                         \
1105     (w1) = __x3 + __ll_highpart (__x1);                                 \
1106     (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
1107   } while (0)
1108 #endif
1109
1110 #if !defined (__umulsidi3)
1111 #define __umulsidi3(u, v) \
1112   ({DIunion __w;                                                        \
1113     umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
1114     __w.ll; })
1115 #endif
1116
1117 /* Define this unconditionally, so it can be used for debugging.  */
1118 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1119   do {                                                                  \
1120     USItype __d1, __d0, __q1, __q0;                                     \
1121     USItype __r1, __r0, __m;                                            \
1122     __d1 = __ll_highpart (d);                                           \
1123     __d0 = __ll_lowpart (d);                                            \
1124                                                                         \
1125     __r1 = (n1) % __d1;                                                 \
1126     __q1 = (n1) / __d1;                                                 \
1127     __m = (USItype) __q1 * __d0;                                        \
1128     __r1 = __r1 * __ll_B | __ll_highpart (n0);                          \
1129     if (__r1 < __m)                                                     \
1130       {                                                                 \
1131         __q1--, __r1 += (d);                                            \
1132         if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1133           if (__r1 < __m)                                               \
1134             __q1--, __r1 += (d);                                        \
1135       }                                                                 \
1136     __r1 -= __m;                                                        \
1137                                                                         \
1138     __r0 = __r1 % __d1;                                                 \
1139     __q0 = __r1 / __d1;                                                 \
1140     __m = (USItype) __q0 * __d0;                                        \
1141     __r0 = __r0 * __ll_B | __ll_lowpart (n0);                           \
1142     if (__r0 < __m)                                                     \
1143       {                                                                 \
1144         __q0--, __r0 += (d);                                            \
1145         if (__r0 >= (d))                                                \
1146           if (__r0 < __m)                                               \
1147             __q0--, __r0 += (d);                                        \
1148       }                                                                 \
1149     __r0 -= __m;                                                        \
1150                                                                         \
1151     (q) = (USItype) __q1 * __ll_B | __q0;                               \
1152     (r) = __r0;                                                         \
1153   } while (0)
1154
1155 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1156    __udiv_w_sdiv (defined in libgcc or elsewhere).  */
1157 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1158 #define udiv_qrnnd(q, r, nh, nl, d) \
1159   do {                                                                  \
1160     USItype __r;                                                        \
1161     (q) = __udiv_w_sdiv (&__r, nh, nl, d);                              \
1162     (r) = __r;                                                          \
1163   } while (0)
1164 #endif
1165
1166 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
1167 #if !defined (udiv_qrnnd)
1168 #define UDIV_NEEDS_NORMALIZATION 1
1169 #define udiv_qrnnd __udiv_qrnnd_c
1170 #endif
1171
1172 #if !defined (count_leading_zeros)
1173 extern const UQItype __clz_tab[];
1174 #define count_leading_zeros(count, x) \
1175   do {                                                                  \
1176     USItype __xr = (x);                                                 \
1177     USItype __a;                                                        \
1178                                                                         \
1179     if (SI_TYPE_SIZE <= 32)                                             \
1180       {                                                                 \
1181         __a = __xr < (1<<2*__BITS4)                                     \
1182           ? (__xr < (1<<__BITS4) ? 0 : __BITS4)                         \
1183           : (__xr < (1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);           \
1184       }                                                                 \
1185     else                                                                \
1186       {                                                                 \
1187         for (__a = SI_TYPE_SIZE - 8; __a > 0; __a -= 8)                 \
1188           if (((__xr >> __a) & 0xff) != 0)                              \
1189             break;                                                      \
1190       }                                                                 \
1191                                                                         \
1192     (count) = SI_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);            \
1193   } while (0)
1194 #endif
1195
1196 #ifndef UDIV_NEEDS_NORMALIZATION
1197 #define UDIV_NEEDS_NORMALIZATION 0
1198 #endif