Logo Search packages:      
Sourcecode: glibc version File versions

longlong.h

/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
   Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
   Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/* You have to define the following before including this file:

   UWtype -- An unsigned type, default type for operations (typically a "word")
   UHWtype -- An unsigned type, at least half the size of UWtype.
   UDWtype -- An unsigned type, at least twice as large a UWtype
   W_TYPE_SIZE -- size in bits of UWtype

   UQItype -- Unsigned 8 bit type.
   SItype, USItype -- Signed and unsigned 32 bit types.
   DItype, UDItype -- Signed and unsigned 64 bit types.

   On a 32 bit machine UWtype should typically be USItype;
   on a 64 bit machine, UWtype should typically be UDItype.
*/

#define __BITS4 (W_TYPE_SIZE / 4)
#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))

#ifndef W_TYPE_SIZE
#define W_TYPE_SIZE     32
#define UWtype          USItype
#define UHWtype         USItype
#define UDWtype         UDItype
#endif

/* Define auxiliary asm macros.

   1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
   UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
   word product in HIGH_PROD and LOW_PROD.

   2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
   UDWtype product.  This is just a variant of umul_ppmm.

   3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
   denominator) divides a UDWtype, composed by the UWtype integers
   HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
   in QUOTIENT and the remainder in REMAINDER.  HIGH_NUMERATOR must be less
   than DENOMINATOR for correct operation.  If, in addition, the most
   significant bit of DENOMINATOR must be 1, then the pre-processor symbol
   UDIV_NEEDS_NORMALIZATION is defined to 1.

   4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
   denominator).  Like udiv_qrnnd but the numbers are signed.  The quotient
   is rounded towards 0.

   5) count_leading_zeros(count, x) counts the number of zero-bits from the
   msb to the first nonzero bit in the UWtype X.  This is the number of
   steps X needs to be shifted left to set the msb.  Undefined for X == 0,
   unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.

   6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
   from the least significant end.

   7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
   high_addend_2, low_addend_2) adds two UWtype integers, composed by
   HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
   respectively.  The result is placed in HIGH_SUM and LOW_SUM.  Overflow
   (i.e. carry out) is not stored anywhere, and is lost.

   8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
   high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
   composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
   LOW_SUBTRAHEND_2 respectively.  The result is placed in HIGH_DIFFERENCE
   and LOW_DIFFERENCE.  Overflow (i.e. carry out) is not stored anywhere,
   and is lost.

   If any of these macros are left undefined for a particular CPU,
   C macros are used.  */

/* The CPUs come in alphabetical order below.

   Please add support for more CPUs here, or improve the current support
   for the CPUs below!
   (E.g. WE32100, IBM360.)  */

#if defined (__GNUC__) && !defined (NO_ASM)

/* We sometimes need to clobber "cc" with gcc2, but that would not be
   understood by gcc1.  Use cpp to avoid major code duplication.  */
#if __GNUC__ < 2
#define __CLOBBER_CC
#define __AND_CLOBBER_CC
#else /* __GNUC__ >= 2 */
#define __CLOBBER_CC : "cc"
#define __AND_CLOBBER_CC , "cc"
#endif /* __GNUC__ < 2 */

#if defined (__alpha) && W_TYPE_SIZE == 64
#define umul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    UDItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ ("umulh %r1,%2,%0"                                    \
           : "=r" ((UDItype) ph)                            \
           : "%rJ" (__m0),                                  \
             "rI" (__m1));                                  \
    (pl) = __m0 * __m1;                                     \
  } while (0)
#define UMUL_TIME 46
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
  do { UDItype __r;                                         \
    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));                   \
    (r) = __r;                                              \
  } while (0)
extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
#define UDIV_TIME 220
#endif /* LONGLONG_STANDALONE */
#ifdef __alpha_cix__
#define count_leading_zeros(COUNT,X) \
  __asm__("ctlz %1,%0" : "=r"(COUNT) : "r"(X))
#define count_trailing_zeros(COUNT,X) \
  __asm__("cttz %1,%0" : "=r"(COUNT) : "r"(X))
#define COUNT_LEADING_ZEROS_0 64
#else
extern const UQItype __clz_tab[];
#define count_leading_zeros(COUNT,X) \
  do {                                                      \
    UDItype __xr = (X), __t, __a;                           \
    __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr));          \
    __a = __clz_tab[__t ^ 0xff] - 1;                              \
    __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a));  \
    (COUNT) = 64 - (__clz_tab[__t] + __a*8);                      \
  } while (0)
#define count_trailing_zeros(COUNT,X) \
  do {                                                      \
    UDItype __xr = (X), __t, __a;                           \
    __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr));          \
    __t = ~__t & -~__t;                                     \
    __a = ((__t & 0xCC) != 0) * 2;                          \
    __a += ((__t & 0xF0) != 0) * 4;                         \
    __a += ((__t & 0xAA) != 0);                                   \
    __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a));  \
    __a <<= 3;                                              \
    __t &= -__t;                                      \
    __a += ((__t & 0xCC) != 0) * 2;                         \
    __a += ((__t & 0xF0) != 0) * 4;                         \
    __a += ((__t & 0xAA) != 0);                                   \
    (COUNT) = __a;                                          \
  } while (0)
#endif /* __alpha_cix__ */
#endif /* __alpha */

#if defined (__arc__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3"       \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%r" ((USItype) (ah)),                           \
           "rIJ" ((USItype) (bh)),                          \
           "%r" ((USItype) (al)),                           \
           "rIJ" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3"       \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "r" ((USItype) (ah)),                            \
           "rIJ" ((USItype) (bh)),                          \
           "r" ((USItype) (al)),                            \
           "rIJ" ((USItype) (bl)))
/* Call libgcc routine.  */
#define umul_ppmm(w1, w0, u, v) \
do {                                                  \
  DWunion __w;                                              \
  __w.ll = __umulsidi3 (u, v);                                    \
  w1 = __w.s.high;                                          \
  w0 = __w.s.low;                                     \
} while (0)
#define __umulsidi3 __umulsidi3
UDItype __umulsidi3 (USItype, USItype);
#endif

#if defined (__arm__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("adds  %1, %4, %5\n\tadc %0, %2, %3"       \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%r" ((USItype) (ah)),                           \
           "rI" ((USItype) (bh)),                           \
           "%r" ((USItype) (al)),                           \
           "rI" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subs  %1, %4, %5\n\tsbc %0, %2, %3"       \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "r" ((USItype) (ah)),                            \
           "rI" ((USItype) (bh)),                           \
           "r" ((USItype) (al)),                            \
           "rI" ((USItype) (bl)))
#define umul_ppmm(xh, xl, a, b) \
{register USItype __t0, __t1, __t2;                         \
  __asm__ ("%@ Inlined umul_ppmm\n"                         \
         "  mov   %2, %5, lsr #16\n"                        \
         "  mov   %0, %6, lsr #16\n"                        \
         "  bic   %3, %5, %2, lsl #16\n"                    \
         "  bic   %4, %6, %0, lsl #16\n"                    \
         "  mul   %1, %3, %4\n"                             \
         "  mul   %4, %2, %4\n"                             \
         "  mul   %3, %0, %3\n"                             \
         "  mul   %0, %2, %0\n"                             \
         "  adds  %3, %4, %3\n"                             \
         "  addcs %0, %0, #65536\n"                   \
         "  adds  %1, %1, %3, lsl #16\n"                    \
         "  adc   %0, %0, %3, lsr #16"                      \
         : "=&r" ((USItype) (xh)),                          \
           "=r" ((USItype) (xl)),                           \
           "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                \
         : "r" ((USItype) (a)),                             \
           "r" ((USItype) (b)));}
#define UMUL_TIME 20
#define UDIV_TIME 100
#endif /* __arm__ */

#if defined (__hppa) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0"                        \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%rM" ((USItype) (ah)),                          \
           "rM" ((USItype) (bh)),                           \
           "%rM" ((USItype) (al)),                          \
           "rM" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0"                        \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "rM" ((USItype) (ah)),                           \
           "rM" ((USItype) (bh)),                           \
           "rM" ((USItype) (al)),                           \
           "rM" ((USItype) (bl)))
#if defined (_PA_RISC1_1)
#define umul_ppmm(w1, w0, u, v) \
  do {                                                      \
    union                                             \
      {                                                     \
      UDItype __f;                                          \
      struct {USItype __w1, __w0;} __w1w0;                        \
      } __t;                                                \
    __asm__ ("xmpyu %1,%2,%0"                               \
           : "=x" (__t.__f)                                 \
           : "x" ((USItype) (u)),                           \
             "x" ((USItype) (v)));                          \
    (w1) = __t.__w1w0.__w1;                                 \
    (w0) = __t.__w1w0.__w0;                                 \
     } while (0)
#define UMUL_TIME 8
#else
#define UMUL_TIME 30
#endif
#define UDIV_TIME 40
#define count_leading_zeros(count, x) \
  do {                                                      \
    USItype __tmp;                                          \
    __asm__ (                                               \
       "ldi       1,%0\n"                                   \
"     extru,=           %1,15,16,%%r0           ; Bits 31..16 zero?\n"  \
"     extru,tr    %1,15,16,%1       ; No.  Shift down, skip add.\n"\
"     ldo         16(%0),%0         ; Yes.  Perform add.\n" \
"     extru,=           %1,23,8,%%r0            ; Bits 15..8 zero?\n"   \
"     extru,tr    %1,23,8,%1        ; No.  Shift down, skip add.\n"\
"     ldo         8(%0),%0          ; Yes.  Perform add.\n" \
"     extru,=           %1,27,4,%%r0            ; Bits 7..4 zero?\n"    \
"     extru,tr    %1,27,4,%1        ; No.  Shift down, skip add.\n"\
"     ldo         4(%0),%0          ; Yes.  Perform add.\n" \
"     extru,=           %1,29,2,%%r0            ; Bits 3..2 zero?\n"    \
"     extru,tr    %1,29,2,%1        ; No.  Shift down, skip add.\n"\
"     ldo         2(%0),%0          ; Yes.  Perform add.\n" \
"     extru       %1,30,1,%1        ; Extract bit 1.\n"     \
"     sub         %0,%1,%0          ; Subtract it.\n" \
      : "=r" (count), "=r" (__tmp) : "1" (x));              \
  } while (0)
#endif

#if (defined (__i370__) || defined (__mvs__)) && W_TYPE_SIZE == 32
#define umul_ppmm(xh, xl, m0, m1) \
  do {                                                      \
    union {UDItype __ll;                                    \
         struct {USItype __h, __l;} __i;                    \
        } __xx;                                       \
    USItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ ("mr %0,%3"                                     \
           : "=r" (__xx.__i.__h),                           \
             "=r" (__xx.__i.__l)                            \
           : "%1" (__m0),                                   \
             "r" (__m1));                                   \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                     \
    (xh) += ((((SItype) __m0 >> 31) & __m1)                       \
           + (((SItype) __m1 >> 31) & __m0));                     \
  } while (0)
#define smul_ppmm(xh, xl, m0, m1) \
  do {                                                      \
    union {DItype __ll;                                     \
         struct {USItype __h, __l;} __i;                    \
        } __xx;                                       \
    __asm__ ("mr %0,%3"                                     \
           : "=r" (__xx.__i.__h),                           \
             "=r" (__xx.__i.__l)                            \
           : "%1" (m0),                               \
             "r" (m1));                               \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                     \
  } while (0)
#define sdiv_qrnnd(q, r, n1, n0, d) \
  do {                                                      \
    union {DItype __ll;                                     \
         struct {USItype __h, __l;} __i;                    \
        } __xx;                                       \
    __xx.__i.__h = n1; __xx.__i.__l = n0;                   \
    __asm__ ("dr %0,%2"                                     \
           : "=r" (__xx.__ll)                               \
           : "0" (__xx.__ll), "r" (d));                     \
    (q) = __xx.__i.__l; (r) = __xx.__i.__h;                       \
  } while (0)
#endif

#if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl %5,%1\n\tadcl %3,%0"                             \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%0" ((USItype) (ah)),                           \
           "g" ((USItype) (bh)),                            \
           "%1" ((USItype) (al)),                           \
           "g" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subl %5,%1\n\tsbbl %3,%0"                             \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "0" ((USItype) (ah)),                            \
           "g" ((USItype) (bh)),                            \
           "1" ((USItype) (al)),                            \
           "g" ((USItype) (bl)))
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("mull %3"                                        \
         : "=a" ((USItype) (w0)),                           \
           "=d" ((USItype) (w1))                            \
         : "%0" ((USItype) (u)),                            \
           "rm" ((USItype) (v)))
#define udiv_qrnnd(q, r, n1, n0, dv) \
  __asm__ ("divl %4"                                        \
         : "=a" ((USItype) (q)),                            \
           "=d" ((USItype) (r))                             \
         : "0" ((USItype) (n0)),                            \
           "1" ((USItype) (n1)),                            \
           "rm" ((USItype) (dv)))
#define count_leading_zeros(count, x) \
  do {                                                      \
    USItype __cbtmp;                                        \
    __asm__ ("bsrl %1,%0"                                   \
           : "=r" (__cbtmp) : "rm" ((USItype) (x)));              \
    (count) = __cbtmp ^ 31;                                 \
  } while (0)
#define count_trailing_zeros(count, x) \
  __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x)))
#define UMUL_TIME 40
#define UDIV_TIME 40
#endif /* 80x86 */

#if defined (__i960__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;                                    \
         struct {USItype __l, __h;} __i;                    \
        } __xx;                                       \
  __asm__ ("emul  %2,%1,%0"                           \
         : "=d" (__xx.__ll)                                 \
         : "%dI" ((USItype) (u)),                           \
           "dI" ((USItype) (v)));                           \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
  ({UDItype __w;                                      \
    __asm__ ("emul      %2,%1,%0"                           \
           : "=d" (__w)                               \
           : "%dI" ((USItype) (u)),                         \
             "dI" ((USItype) (v)));                         \
    __w; })
#endif /* __i960__ */

#if defined (__M32R__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  /* The cmp clears the condition bit.  */ \
  __asm__ ("cmp %0,%0\n\taddx %%5,%1\n\taddx %%3,%0"              \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%0" ((USItype) (ah)),                           \
           "r" ((USItype) (bh)),                            \
           "%1" ((USItype) (al)),                           \
           "r" ((USItype) (bl))                             \
         : "cbit")
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  /* The cmp clears the condition bit.  */ \
  __asm__ ("cmp %0,%0\n\tsubx %5,%1\n\tsubx %3,%0"                \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "0" ((USItype) (ah)),                            \
           "r" ((USItype) (bh)),                            \
           "1" ((USItype) (al)),                            \
           "r" ((USItype) (bl))                             \
         : "cbit")
#endif /* __M32R__ */

#if defined (__mc68000__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0"                        \
         : "=d" ((USItype) (sh)),                           \
           "=&d" ((USItype) (sl))                           \
         : "%0" ((USItype) (ah)),                           \
           "d" ((USItype) (bh)),                            \
           "%1" ((USItype) (al)),                           \
           "g" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0"                        \
         : "=d" ((USItype) (sh)),                           \
           "=&d" ((USItype) (sl))                           \
         : "0" ((USItype) (ah)),                            \
           "d" ((USItype) (bh)),                            \
           "1" ((USItype) (al)),                            \
           "g" ((USItype) (bl)))

/* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r.  */
#if defined (__mc68020__) || defined(mc68020) \
      || defined(__mc68030__) || defined(mc68030) \
      || defined(__mc68040__) || defined(mc68040) \
      || defined(__mcpu32__) || defined(mcpu32)
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("mulu%.l %3,%1:%0"                               \
         : "=d" ((USItype) (w0)),                           \
           "=d" ((USItype) (w1))                            \
         : "%0" ((USItype) (u)),                            \
           "dmi" ((USItype) (v)))
#define UMUL_TIME 45
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("divu%.l %4,%1:%0"                               \
         : "=d" ((USItype) (q)),                            \
           "=d" ((USItype) (r))                             \
         : "0" ((USItype) (n0)),                            \
           "1" ((USItype) (n1)),                            \
           "dmi" ((USItype) (d)))
#define UDIV_TIME 90
#define sdiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("divs%.l %4,%1:%0"                               \
         : "=d" ((USItype) (q)),                            \
           "=d" ((USItype) (r))                             \
         : "0" ((USItype) (n0)),                            \
           "1" ((USItype) (n1)),                            \
           "dmi" ((USItype) (d)))

#else /* not mc68020 */
#if !defined(__mcf5200__)
/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX.  */
#define umul_ppmm(xh, xl, a, b) \
  __asm__ ("| Inlined umul_ppmm\n"                          \
         "  move%.l     %2,%/d0\n"                          \
         "  move%.l     %3,%/d1\n"                          \
         "  move%.l     %/d0,%/d2\n"                              \
         "  swap  %/d0\n"                                   \
         "  move%.l     %/d1,%/d3\n"                              \
         "  swap  %/d1\n"                                   \
         "  move%.w     %/d2,%/d4\n"                              \
         "  mulu  %/d3,%/d4\n"                              \
         "  mulu  %/d1,%/d2\n"                              \
         "  mulu  %/d0,%/d3\n"                              \
         "  mulu  %/d0,%/d1\n"                              \
         "  move%.l     %/d4,%/d0\n"                              \
         "  eor%.w      %/d0,%/d0\n"                              \
         "  swap  %/d0\n"                                   \
         "  add%.l      %/d0,%/d2\n"                              \
         "  add%.l      %/d3,%/d2\n"                              \
         "  jcc   1f\n"                               \
         "  add%.l      %#65536,%/d1\n"                           \
         "1:      swap  %/d2\n"                                   \
         "  moveq %#0,%/d0\n"                         \
         "  move%.w     %/d2,%/d0\n"                              \
         "  move%.w     %/d4,%/d2\n"                              \
         "  move%.l     %/d2,%1\n"                          \
         "  add%.l      %/d1,%/d0\n"                              \
         "  move%.l     %/d0,%0"                            \
         : "=g" ((USItype) (xh)),                           \
           "=g" ((USItype) (xl))                            \
         : "g" ((USItype) (a)),                             \
           "g" ((USItype) (b))                              \
         : "d0", "d1", "d2", "d3", "d4")
#define UMUL_TIME 100
#define UDIV_TIME 400
#endif /* not mcf5200 */
#endif /* not mc68020 */

/* The '020, '030, '040 and '060 have bitfield insns.  */
#if defined (__mc68020__) || defined(mc68020) \
      || defined(__mc68030__) || defined(mc68030) \
      || defined(__mc68040__) || defined(mc68040) \
      || defined(__mc68060__) || defined(mc68060)
#define count_leading_zeros(count, x) \
  __asm__ ("bfffo %1{%b2:%b2},%0"                           \
         : "=d" ((USItype) (count))                         \
         : "od" ((USItype) (x)), "n" (0))
#endif
#endif /* mc68000 */

#if defined (__m88000__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3"             \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%rJ" ((USItype) (ah)),                          \
           "rJ" ((USItype) (bh)),                           \
           "%rJ" ((USItype) (al)),                          \
           "rJ" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3"             \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "rJ" ((USItype) (ah)),                           \
           "rJ" ((USItype) (bh)),                           \
           "rJ" ((USItype) (al)),                           \
           "rJ" ((USItype) (bl)))
#define count_leading_zeros(count, x) \
  do {                                                      \
    USItype __cbtmp;                                        \
    __asm__ ("ff1 %0,%1"                                    \
           : "=r" (__cbtmp)                                 \
           : "r" ((USItype) (x)));                          \
    (count) = __cbtmp ^ 31;                                 \
  } while (0)
#define COUNT_LEADING_ZEROS_0 63 /* sic */
#if defined (__mc88110__)
#define umul_ppmm(wh, wl, u, v) \
  do {                                                      \
    union {UDItype __ll;                                    \
         struct {USItype __h, __l;} __i;                    \
        } __xx;                                       \
    __asm__ ("mulu.d    %0,%1,%2"                           \
           : "=r" (__xx.__ll)                               \
           : "r" ((USItype) (u)),                           \
             "r" ((USItype) (v)));                          \
    (wh) = __xx.__i.__h;                                    \
    (wl) = __xx.__i.__l;                                    \
  } while (0)
#define udiv_qrnnd(q, r, n1, n0, d) \
  ({union {UDItype __ll;                                    \
         struct {USItype __h, __l;} __i;                    \
        } __xx;                                       \
  USItype __q;                                              \
  __xx.__i.__h = (n1); __xx.__i.__l = (n0);                       \
  __asm__ ("divu.d %0,%1,%2"                                \
         : "=r" (__q)                                       \
         : "r" (__xx.__ll),                                 \
           "r" ((USItype) (d)));                            \
  (r) = (n0) - __q * (d); (q) = __q; })
#define UMUL_TIME 5
#define UDIV_TIME 25
#else
#define UMUL_TIME 17
#define UDIV_TIME 150
#endif /* __mc88110__ */
#endif /* __m88000__ */

#if defined (__mips__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("multu %2,%3"                                    \
         : "=l" ((USItype) (w0)),                           \
           "=h" ((USItype) (w1))                            \
         : "d" ((USItype) (u)),                             \
           "d" ((USItype) (v)))
#define UMUL_TIME 10
#define UDIV_TIME 100
#endif /* __mips__ */

#if defined (__ns32000__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;                                    \
         struct {USItype __l, __h;} __i;                    \
        } __xx;                                       \
  __asm__ ("meid %2,%0"                                     \
         : "=g" (__xx.__ll)                                 \
         : "%0" ((USItype) (u)),                            \
           "g" ((USItype) (v)));                            \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
  ({UDItype __w;                                      \
    __asm__ ("meid %2,%0"                                   \
           : "=g" (__w)                               \
           : "%0" ((USItype) (u)),                          \
             "g" ((USItype) (v)));                          \
    __w; })
#define udiv_qrnnd(q, r, n1, n0, d) \
  ({union {UDItype __ll;                                    \
         struct {USItype __l, __h;} __i;                    \
        } __xx;                                       \
  __xx.__i.__h = (n1); __xx.__i.__l = (n0);                       \
  __asm__ ("deid %2,%0"                                     \
         : "=g" (__xx.__ll)                                 \
         : "0" (__xx.__ll),                                 \
           "g" ((USItype) (d)));                            \
  (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
#define count_trailing_zeros(count,x) \
  do {                                                      \
    __asm__ ("ffsd     %2,%0"                               \
            : "=r" ((USItype) (count))                            \
            : "0" ((USItype) 0),                            \
              "r" ((USItype) (x)));                         \
  } while (0)
#endif /* __ns32000__ */

/* FIXME: We should test _IBMR2 here when we add assembly support for the
   system vendor compilers.
   FIXME: What's needed for gcc PowerPC VxWorks?  __vxworks__ is not good
   enough, since that hits ARM and m68k too.  */
#if (defined (_ARCH_PPC)      /* AIX */                     \
     || defined (_ARCH_PWR)   /* AIX */                     \
     || defined (_ARCH_COM)   /* AIX */                     \
     || defined (__powerpc__) /* gcc */                     \
     || defined (__POWERPC__) /* BEOS */                    \
     || defined (__ppc__)     /* Darwin */                        \
     || defined (PPC)         /* GNU/Linux, SysV */               \
     ) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    if (__builtin_constant_p (bh) && (bh) == 0)                   \
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
           : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0)         \
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
           : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
    else                                              \
      __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
           : "=r" (sh), "=&r" (sl)                          \
           : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl));          \
  } while (0)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    if (__builtin_constant_p (ah) && (ah) == 0)                   \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
             : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0)         \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
             : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == 0)              \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
             : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0)         \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
             : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
    else                                              \
      __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
             : "=r" (sh), "=&r" (sl)                              \
             : "r" (ah), "r" (bh), "rI" (al), "r" (bl));          \
  } while (0)
#define count_leading_zeros(count, x) \
  __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
#define COUNT_LEADING_ZEROS_0 32
#if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
  || defined (__ppc__) || defined (PPC) || defined (__vxworks__)
#define umul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    USItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));      \
    (pl) = __m0 * __m1;                                     \
  } while (0)
#define UMUL_TIME 15
#define smul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    SItype __m0 = (m0), __m1 = (m1);                              \
    __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
    (pl) = __m0 * __m1;                                     \
  } while (0)
#define SMUL_TIME 14
#define UDIV_TIME 120
#elif defined (_ARCH_PWR)
#define UMUL_TIME 8
#define smul_ppmm(xh, xl, m0, m1) \
  __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
#define SMUL_TIME 4
#define sdiv_qrnnd(q, r, nh, nl, d) \
  __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
#define UDIV_TIME 100
#endif
#endif /* 32-bit POWER architecture variants.  */

/* We should test _IBMR2 here when we add assembly support for the system
   vendor compilers.  */
#if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    if (__builtin_constant_p (bh) && (bh) == 0)                   \
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
           : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0)         \
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
           : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
    else                                              \
      __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
           : "=r" (sh), "=&r" (sl)                          \
           : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl));          \
  } while (0)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    if (__builtin_constant_p (ah) && (ah) == 0)                   \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
             : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0)         \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
             : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == 0)              \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
             : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
    else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0)         \
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
             : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
    else                                              \
      __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
             : "=r" (sh), "=&r" (sl)                              \
             : "r" (ah), "r" (bh), "rI" (al), "r" (bl));          \
  } while (0)
#define count_leading_zeros(count, x) \
  __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
#define COUNT_LEADING_ZEROS_0 64
#define umul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    UDItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));      \
    (pl) = __m0 * __m1;                                     \
  } while (0)
#define UMUL_TIME 15
#define smul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    DItype __m0 = (m0), __m1 = (m1);                              \
    __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
    (pl) = __m0 * __m1;                                     \
  } while (0)
#define SMUL_TIME 14  /* ??? */
#define UDIV_TIME 120 /* ??? */
#endif /* 64-bit PowerPC.  */

#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("a %1,%5\n\tae %0,%3"                            \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%0" ((USItype) (ah)),                           \
           "r" ((USItype) (bh)),                            \
           "%1" ((USItype) (al)),                           \
           "r" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("s %1,%5\n\tse %0,%3"                            \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "0" ((USItype) (ah)),                            \
           "r" ((USItype) (bh)),                            \
           "1" ((USItype) (al)),                            \
           "r" ((USItype) (bl)))
#define umul_ppmm(ph, pl, m0, m1) \
  do {                                                      \
    USItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ (                                               \
       "s   r2,r2\n"                                  \
"     mts   r10,%2\n"                                 \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     m     r2,%3\n"                                  \
"     cas   %0,r2,r0\n"                               \
"     mfs   r10,%1"                                         \
           : "=r" ((USItype) (ph)),                         \
             "=r" ((USItype) (pl))                          \
           : "%r" (__m0),                                   \
            "r" (__m1)                                \
           : "r2");                                         \
    (ph) += ((((SItype) __m0 >> 31) & __m1)                       \
           + (((SItype) __m1 >> 31) & __m0));                     \
  } while (0)
#define UMUL_TIME 20
#define UDIV_TIME 200
#define count_leading_zeros(count, x) \
  do {                                                      \
    if ((x) >= 0x10000)                                     \
      __asm__ ("clz     %0,%1"                                    \
             : "=r" ((USItype) (count))                     \
             : "r" ((USItype) (x) >> 16));                        \
    else                                              \
      {                                                     \
      __asm__ ("clz     %0,%1"                                    \
             : "=r" ((USItype) (count))                     \
             : "r" ((USItype) (x)));                              \
      (count) += 16;                                        \
      }                                                     \
  } while (0)
#endif

#if defined (__sh2__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  __asm__ (                                           \
       "dmulu.l   %2,%3\n\tsts      macl,%1\n\tsts    mach,%0"          \
         : "=r" ((USItype)(w1)),                            \
           "=r" ((USItype)(w0))                             \
         : "r" ((USItype)(u)),                              \
           "r" ((USItype)(v))                               \
         : "macl", "mach")
#define UMUL_TIME 5
#endif

#if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
#define count_leading_zeros(count, x) \
  do                                                  \
    {                                                 \
      UDItype x_ = (USItype)(x);                            \
      SItype c_;                                      \
                                                      \
      __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_));              \
      (count) = c_ - 31;                                    \
    }                                                 \
  while (0)
#define COUNT_LEADING_ZEROS_0 32
#endif

#if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
    && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0"                    \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "%rJ" ((USItype) (ah)),                          \
           "rI" ((USItype) (bh)),                           \
           "%rJ" ((USItype) (al)),                          \
           "rI" ((USItype) (bl))                            \
         __CLOBBER_CC)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0"                    \
         : "=r" ((USItype) (sh)),                           \
           "=&r" ((USItype) (sl))                           \
         : "rJ" ((USItype) (ah)),                           \
           "rI" ((USItype) (bh)),                           \
           "rJ" ((USItype) (al)),                           \
           "rI" ((USItype) (bl))                            \
         __CLOBBER_CC)
#if defined (__sparc_v8__)
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("umul %2,%3,%1;rd %%y,%0"                              \
         : "=r" ((USItype) (w1)),                           \
           "=r" ((USItype) (w0))                            \
         : "r" ((USItype) (u)),                             \
           "r" ((USItype) (v)))
#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
  __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
         : "=&r" ((USItype) (__q)),                         \
           "=&r" ((USItype) (__r))                          \
         : "r" ((USItype) (__n1)),                          \
           "r" ((USItype) (__n0)),                          \
           "r" ((USItype) (__d)))
#else
#if defined (__sparclite__)
/* This has hardware multiply but not divide.  It also has two additional
   instructions scan (ffs from high bit) and divscc.  */
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("umul %2,%3,%1;rd %%y,%0"                              \
         : "=r" ((USItype) (w1)),                           \
           "=r" ((USItype) (w0))                            \
         : "r" ((USItype) (u)),                             \
           "r" ((USItype) (v)))
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("! Inlined udiv_qrnnd\n"                         \
"     wr    %%g0,%2,%%y ! Not a delayed write for sparclite\n"    \
"     tst   %%g0\n"                                         \
"     divscc      %3,%4,%%g1\n"                                   \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%%g1\n"                                 \
"     divscc      %%g1,%4,%0\n"                                   \
"     rd    %%y,%1\n"                                 \
"     bl,a 1f\n"                                      \
"     add   %1,%4,%1\n"                               \
"1:   ! End of inline udiv_qrnnd"                           \
         : "=r" ((USItype) (q)),                            \
           "=r" ((USItype) (r))                             \
         : "r" ((USItype) (n1)),                            \
           "r" ((USItype) (n0)),                            \
           "rI" ((USItype) (d))                             \
         : "g1" __AND_CLOBBER_CC)
#define UDIV_TIME 37
#define count_leading_zeros(count, x) \
  do {                                                                  \
  __asm__ ("scan %1,1,%0"                                               \
           : "=r" ((USItype) (count))                                   \
           : "r" ((USItype) (x)));                          \
  } while (0)
/* Early sparclites return 63 for an argument of 0, but they warn that future
   implementations might change this.  Therefore, leave COUNT_LEADING_ZEROS_0
   undefined.  */
#else
/* SPARC without integer multiplication and divide instructions.
   (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("! Inlined umul_ppmm\n"                          \
"     wr    %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
"     sra   %3,31,%%o5  ! Don't move this insn\n"           \
"     and   %2,%%o5,%%o5      ! Don't move this insn\n"           \
"     andcc %%g0,0,%%g1 ! Don't move this insn\n"           \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,%3,%%g1\n"                                 \
"     mulscc      %%g1,0,%%g1\n"                                  \
"     add   %%g1,%%o5,%0\n"                                 \
"     rd    %%y,%1"                                         \
         : "=r" ((USItype) (w1)),                           \
           "=r" ((USItype) (w0))                            \
         : "%rI" ((USItype) (u)),                           \
           "r" ((USItype) (v))                                    \
         : "g1", "o5" __AND_CLOBBER_CC)
#define UMUL_TIME 39          /* 39 instructions */
/* It's quite necessary to add this much assembler for the sparc.
   The default udiv_qrnnd (in C) is more than 10 times slower!  */
#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
  __asm__ ("! Inlined udiv_qrnnd\n"                         \
"     mov   32,%%g1\n"                                \
"     subcc %1,%2,%%g0\n"                                   \
"1:   bcs   5f\n"                                     \
"      addxcc %0,%0,%0  ! shift n1n0 and a q-bit in lsb\n"  \
"     sub   %1,%2,%1    ! this kills msb of n\n"            \
"     addx  %1,%1,%1    ! so this can't give carry\n"       \
"     subcc %%g1,1,%%g1\n"                                  \
"2:   bne   1b\n"                                     \
"      subcc      %1,%2,%%g0\n"                                   \
"     bcs   3f\n"                                     \
"      addxcc %0,%0,%0  ! shift n1n0 and a q-bit in lsb\n"  \
"     b     3f\n"                                     \
"      sub  %1,%2,%1    ! this kills msb of n\n"            \
"4:   sub   %1,%2,%1\n"                               \
"5:   addxcc      %1,%1,%1\n"                               \
"     bcc   2b\n"                                     \
"      subcc      %%g1,1,%%g1\n"                                  \
"! Got carry from n.  Subtract next step to cancel this carry.\n" \
"     bne   4b\n"                                     \
"      addcc      %0,%0,%0    ! shift n1n0 and a 0-bit in lsb\n"  \
"     sub   %1,%2,%1\n"                               \
"3:   xnor  %0,0,%0\n"                                \
"     ! End of inline udiv_qrnnd"                           \
         : "=&r" ((USItype) (__q)),                         \
           "=&r" ((USItype) (__r))                          \
         : "r" ((USItype) (__d)),                           \
           "1" ((USItype) (__n1)),                          \
           "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
#define UDIV_TIME (3+7*32)    /* 7 instructions/iteration. 32 iterations.  */
#endif /* __sparclite__ */
#endif /* __sparc_v8__ */
#endif /* sparc32 */

#if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
    && W_TYPE_SIZE == 64
#define add_ssaaaa(sh, sl, ah, al, bh, bl)                        \
  __asm__ ("addcc %r4,%5,%1\n\t"                            \
         "add %r2,%3,%0\n\t"                                \
         "bcs,a,pn %%xcc, 1f\n\t"                           \
         "add %0, 1, %0\n"                                  \
         "1:"                                               \
         : "=r" ((UDItype)(sh)),                                  \
           "=&r" ((UDItype)(sl))                                  \
         : "%rJ" ((UDItype)(ah)),                           \
           "rI" ((UDItype)(bh)),                                  \
           "%rJ" ((UDItype)(al)),                           \
           "rI" ((UDItype)(bl))                                   \
         __CLOBBER_CC)

#define sub_ddmmss(sh, sl, ah, al, bh, bl)                        \
  __asm__ ("subcc %r4,%5,%1\n\t"                            \
         "sub %r2,%3,%0\n\t"                                \
         "bcs,a,pn %%xcc, 1f\n\t"                           \
         "sub %0, 1, %0\n\t"                                \
         "1:"                                               \
         : "=r" ((UDItype)(sh)),                                  \
           "=&r" ((UDItype)(sl))                                  \
         : "rJ" ((UDItype)(ah)),                            \
           "rI" ((UDItype)(bh)),                                  \
           "rJ" ((UDItype)(al)),                            \
           "rI" ((UDItype)(bl))                                   \
         __CLOBBER_CC)

#define umul_ppmm(wh, wl, u, v)                                   \
  do {                                                      \
        UDItype tmp1, tmp2, tmp3, tmp4;                     \
        __asm__ __volatile__ (                              \
               "srl %7,0,%3\n\t"                            \
               "mulx %3,%6,%1\n\t"                          \
               "srlx %6,32,%2\n\t"                          \
               "mulx %2,%3,%4\n\t"                          \
               "sllx %4,32,%5\n\t"                          \
               "srl %6,0,%3\n\t"                            \
               "sub %1,%5,%5\n\t"                           \
               "srlx %5,32,%5\n\t"                          \
               "addcc %4,%5,%4\n\t"                         \
               "srlx %7,32,%5\n\t"                          \
               "mulx %3,%5,%3\n\t"                          \
               "mulx %2,%5,%5\n\t"                          \
               "sethi %%hi(0x80000000),%2\n\t"              \
               "addcc %4,%3,%4\n\t"                         \
               "srlx %4,32,%4\n\t"                          \
               "add %2,%2,%2\n\t"                           \
               "movcc %%xcc,%%g0,%2\n\t"                    \
               "addcc %5,%4,%5\n\t"                         \
               "sllx %3,32,%3\n\t"                          \
               "add %1,%3,%1\n\t"                           \
               "add %5,%2,%0"                         \
         : "=r" ((UDItype)(wh)),                            \
           "=&r" ((UDItype)(wl)),                           \
           "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
         : "r" ((UDItype)(u)),                              \
           "r" ((UDItype)(v))                               \
         __CLOBBER_CC);                               \
  } while (0)
#define UMUL_TIME 96
#define UDIV_TIME 230
#endif /* sparc64 */

#if defined (__vax__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl2 %5,%1\n\tadwc %3,%0"                            \
         : "=g" ((USItype) (sh)),                           \
           "=&g" ((USItype) (sl))                           \
         : "%0" ((USItype) (ah)),                           \
           "g" ((USItype) (bh)),                            \
           "%1" ((USItype) (al)),                           \
           "g" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subl2 %5,%1\n\tsbwc %3,%0"                            \
         : "=g" ((USItype) (sh)),                           \
           "=&g" ((USItype) (sl))                           \
         : "0" ((USItype) (ah)),                            \
           "g" ((USItype) (bh)),                            \
           "1" ((USItype) (al)),                            \
           "g" ((USItype) (bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {                                                      \
    union {                                           \
      UDItype __ll;                                         \
      struct {USItype __l, __h;} __i;                             \
      } __xx;                                               \
    USItype __m0 = (m0), __m1 = (m1);                             \
    __asm__ ("emul %1,%2,$0,%0"                                   \
           : "=r" (__xx.__ll)                               \
           : "g" (__m0),                                    \
             "g" (__m1));                                   \
    (xh) = __xx.__i.__h;                                    \
    (xl) = __xx.__i.__l;                                    \
    (xh) += ((((SItype) __m0 >> 31) & __m1)                       \
           + (((SItype) __m1 >> 31) & __m0));                     \
  } while (0)
#define sdiv_qrnnd(q, r, n1, n0, d) \
  do {                                                      \
    union {DItype __ll;                                     \
         struct {SItype __l, __h;} __i;                     \
        } __xx;                                       \
    __xx.__i.__h = n1; __xx.__i.__l = n0;                   \
    __asm__ ("ediv %3,%2,%0,%1"                                   \
           : "=g" (q), "=g" (r)                             \
           : "g" (__xx.__ll), "g" (d));                     \
  } while (0)
#endif /* __vax__ */

#if defined (__z8000__) && W_TYPE_SIZE == 16
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add   %H1,%H5\n\tadc    %H0,%H3"                      \
         : "=r" ((unsigned int)(sh)),                             \
           "=&r" ((unsigned int)(sl))                             \
         : "%0" ((unsigned int)(ah)),                             \
           "r" ((unsigned int)(bh)),                              \
           "%1" ((unsigned int)(al)),                             \
           "rQR" ((unsigned int)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub   %H1,%H5\n\tsbc    %H0,%H3"                      \
         : "=r" ((unsigned int)(sh)),                             \
           "=&r" ((unsigned int)(sl))                             \
         : "0" ((unsigned int)(ah)),                              \
           "r" ((unsigned int)(bh)),                              \
           "1" ((unsigned int)(al)),                              \
           "rQR" ((unsigned int)(bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {                                                      \
    union {long int __ll;                                   \
         struct {unsigned int __h, __l;} __i;                     \
        } __xx;                                       \
    unsigned int __m0 = (m0), __m1 = (m1);                        \
    __asm__ ("mult      %S0,%H3"                            \
           : "=r" (__xx.__i.__h),                           \
             "=r" (__xx.__i.__l)                            \
           : "%1" (__m0),                                   \
             "rQR" (__m1));                                 \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                     \
    (xh) += ((((signed int) __m0 >> 15) & __m1)                   \
           + (((signed int) __m1 >> 15) & __m0));                 \
  } while (0)
#endif /* __z8000__ */

#endif /* __GNUC__ */

/* If this machine has no inline assembler, use C macros.  */

#if !defined (add_ssaaaa)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    UWtype __x;                                             \
    __x = (al) + (bl);                                      \
    (sh) = (ah) + (bh) + (__x < (al));                            \
    (sl) = __x;                                             \
  } while (0)
#endif

#if !defined (sub_ddmmss)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {                                                      \
    UWtype __x;                                             \
    __x = (al) - (bl);                                      \
    (sh) = (ah) - (bh) - (__x > (al));                            \
    (sl) = __x;                                             \
  } while (0)
#endif

#if !defined (umul_ppmm)
#define umul_ppmm(w1, w0, u, v)                                   \
  do {                                                      \
    UWtype __x0, __x1, __x2, __x3;                          \
    UHWtype __ul, __vl, __uh, __vh;                         \
                                                      \
    __ul = __ll_lowpart (u);                                \
    __uh = __ll_highpart (u);                               \
    __vl = __ll_lowpart (v);                                \
    __vh = __ll_highpart (v);                               \
                                                      \
    __x0 = (UWtype) __ul * __vl;                            \
    __x1 = (UWtype) __ul * __vh;                            \
    __x2 = (UWtype) __uh * __vl;                            \
    __x3 = (UWtype) __uh * __vh;                            \
                                                      \
    __x1 += __ll_highpart (__x0);/* this can't give carry */            \
    __x1 += __x2;       /* but this indeed can */           \
    if (__x1 < __x2)          /* did we get it? */                \
      __x3 += __ll_B;         /* yes, add it in the proper pos.  */     \
                                                      \
    (w1) = __x3 + __ll_highpart (__x1);                           \
    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
  } while (0)
#endif

#if !defined (__umulsidi3)
#define __umulsidi3(u, v) \
  ({DWunion __w;                                      \
    umul_ppmm (__w.s.high, __w.s.low, u, v);                      \
    __w.ll; })
#endif

/* Define this unconditionally, so it can be used for debugging.  */
#define __udiv_qrnnd_c(q, r, n1, n0, d) \
  do {                                                      \
    UWtype __d1, __d0, __q1, __q0;                          \
    UWtype __r1, __r0, __m;                                 \
    __d1 = __ll_highpart (d);                               \
    __d0 = __ll_lowpart (d);                                \
                                                      \
    __r1 = (n1) % __d1;                                     \
    __q1 = (n1) / __d1;                                     \
    __m = (UWtype) __q1 * __d0;                                   \
    __r1 = __r1 * __ll_B | __ll_highpart (n0);                    \
    if (__r1 < __m)                                         \
      {                                                     \
      __q1--, __r1 += (d);                                  \
      if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
        if (__r1 < __m)                               \
          __q1--, __r1 += (d);                              \
      }                                                     \
    __r1 -= __m;                                      \
                                                      \
    __r0 = __r1 % __d1;                                     \
    __q0 = __r1 / __d1;                                     \
    __m = (UWtype) __q0 * __d0;                                   \
    __r0 = __r0 * __ll_B | __ll_lowpart (n0);                     \
    if (__r0 < __m)                                         \
      {                                                     \
      __q0--, __r0 += (d);                                  \
      if (__r0 >= (d))                                \
        if (__r0 < __m)                               \
          __q0--, __r0 += (d);                              \
      }                                                     \
    __r0 -= __m;                                      \
                                                      \
    (q) = (UWtype) __q1 * __ll_B | __q0;                    \
    (r) = __r0;                                             \
  } while (0)

/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
   __udiv_w_sdiv (defined in libgcc or elsewhere).  */
#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
#define udiv_qrnnd(q, r, nh, nl, d) \
  do {                                                      \
    USItype __r;                                      \
    (q) = __udiv_w_sdiv (&__r, nh, nl, d);                        \
    (r) = __r;                                              \
  } while (0)
#endif

/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
#if !defined (udiv_qrnnd)
#define UDIV_NEEDS_NORMALIZATION 1
#define udiv_qrnnd __udiv_qrnnd_c
#endif

#if !defined (count_leading_zeros)
extern const UQItype __clz_tab[];
#define count_leading_zeros(count, x) \
  do {                                                      \
    UWtype __xr = (x);                                      \
    UWtype __a;                                             \
                                                      \
    if (W_TYPE_SIZE <= 32)                                  \
      {                                                     \
      __a = __xr < ((UWtype)1<<2*__BITS4)                   \
        ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4)             \
        : (__xr < ((UWtype)1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);     \
      }                                                     \
    else                                              \
      {                                                     \
      for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8)              \
        if (((__xr >> __a) & 0xff) != 0)                    \
          break;                                      \
      }                                                     \
                                                      \
    (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);       \
  } while (0)
#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
#endif

#if !defined (count_trailing_zeros)
/* Define count_trailing_zeros using count_leading_zeros.  The latter might be
   defined in asm, but if it is not, the C version above is good enough.  */
#define count_trailing_zeros(count, x) \
  do {                                                      \
    UWtype __ctz_x = (x);                                   \
    UWtype __ctz_c;                                         \
    count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x);                  \
    (count) = W_TYPE_SIZE - 1 - __ctz_c;                    \
  } while (0)
#endif

#ifndef UDIV_NEEDS_NORMALIZATION
#define UDIV_NEEDS_NORMALIZATION 0
#endif

Generated by  Doxygen 1.6.0   Back to index