xref: /csrg-svn/contrib/gcc-2.3.3/longlong.h (revision 59691)

/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
   Copyright (C) 1991, 1992 Free Software Foundation, Inc.

   This definition file is free software; you can redistribute it
   and/or modify it under the terms of the GNU General Public
   License as published by the Free Software Foundation; either
   version 2, or (at your option) any later version.

   This definition file 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#ifndef SI_TYPE_SIZE
#define SI_TYPE_SIZE 32
#endif

#define __BITS4 (SI_TYPE_SIZE / 4)
#define __ll_B (1L << (SI_TYPE_SIZE / 2))
#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
#define __ll_highpart(t) ((USItype) (t) / __ll_B)

/* Define auxiliary asm macros.

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

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

   3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
   denominator) divides a two-word unsigned integer, composed by the
   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 non-zero bit.  This is the number of steps X
   needs to be shifted left to set the msb.  Undefined for X == 0.

   6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
   high_addend_2, low_addend_2) adds two two-word unsigned 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.

   7) sub_ddmmss(high_difference, low_difference, high_minuend,
   low_minuend, high_subtrahend, low_subtrahend) subtracts two
   two-word unsigned 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, i960, 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 (__a29k__) || defined (___AM29K__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %1,%4,%5
	addc %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__ ("sub %1,%4,%5
	subc %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, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("multiplu %0,%1,%2"					\
	     : "=r" ((USItype)(xl))					\
	     : "r" (__m0),						\
	       "r" (__m1));						\
    __asm__ ("multmu %0,%1,%2"						\
	     : "=r" ((USItype)(xh))					\
	     : "r" (__m0),						\
	       "r" (__m1));						\
  } while (0)
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("dividu %0,%3,%4"						\
	   : "=r" ((USItype)(q)),					\
	     "=q" ((USItype)(r))					\
	   : "1" ((USItype)(n1)),					\
	     "r" ((USItype)(n0)),					\
	     "r" ((USItype)(d)))
#define count_leading_zeros(count, x) \
    __asm__ ("clz %0,%1"						\
	     : "=r" ((USItype)(count))					\
	     : "r" ((USItype)(x)))
#endif /* __a29k__ */

#if defined (__arm__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("adds %1,%4,%5
	adc %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
	sbc %0,%2,%3"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "r" ((USItype)(ah)),					\
	     "rI" ((USItype)(bh)),					\
	     "r" ((USItype)(al)),					\
	     "rI" ((USItype)(bl)))
#endif /* __arm__ */

#if defined (__gmicro__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add.w %5,%1
	addx %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__ ("sub.w %5,%1
	subx %3,%0"							\
	   : "=g" ((USItype)(sh)),					\
	     "=&g" ((USItype)(sl))					\
	   : "0" ((USItype)(ah)),					\
	     "g" ((USItype)(bh)),					\
	     "1" ((USItype)(al)),					\
	     "g" ((USItype)(bl)))
#define umul_ppmm(ph, pl, m0, m1) \
  __asm__ ("mulx %3,%0,%1"						\
	   : "=g" ((USItype)(ph)),					\
	     "=r" ((USItype)(pl))					\
	   : "%0" ((USItype)(m0)),					\
	     "g" ((USItype)(m1)))
#define udiv_qrnnd(q, r, nh, nl, d) \
  __asm__ ("divx %4,%0,%1"						\
	   : "=g" ((USItype)(q)),					\
	     "=r" ((USItype)(r))					\
	   : "1" ((USItype)(nh)),					\
	     "0" ((USItype)(nl)),					\
	     "g" ((USItype)(d)))
#define count_leading_zeros(count, x) \
  __asm__ ("bsch/1 %1,%0"						\
	   : "=g" (count)						\
	   : "g" ((USItype)(x)),					\
	     "0" ((USItype)0))
#endif

#if defined (__hppa)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %4,%5,%1
	addc %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
	subb %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
#endif

#if defined (__i386__) || defined (__i486__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl %5,%1
	adcl %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
	sbbl %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, d) \
  __asm__ ("divl %4"							\
	   : "=a" ((USItype)(q)),					\
	     "=d" ((USItype)(r))					\
	   : "0" ((USItype)(n0)),					\
	     "1" ((USItype)(n1)),					\
	     "rm" ((USItype)(d)))
#define count_leading_zeros(count, x) \
  do {									\
    USItype __cbtmp;							\
    __asm__ ("bsrl %1,%0"						\
	     : "=r" (__cbtmp) : "rm" ((USItype)(x)));			\
    (count) = __cbtmp ^ 31;						\
  } while (0)
#define UMUL_TIME 40
#define UDIV_TIME 40
#endif /* 80x86 */

#if defined (__i860__)
#if 0
/* Make sure these patterns really improve the code before
   switching them on.  */
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {									\
    union								\
      {									\
	DItype __ll;							\
	struct {USItype __l, __h;} __i;					\
      }  __a, __b, __s;							\
    __a.__i.__l = (al);							\
    __a.__i.__h = (ah);							\
    __b.__i.__l = (bl);							\
    __b.__i.__h = (bh);							\
    __asm__ ("fiadd.dd %1,%2,%0"					\
	     : "=f" (__s.__ll)						\
	     : "%f" (__a.__ll), "f" (__b.__ll));			\
    (sh) = __s.__i.__h;							\
    (sl) = __s.__i.__l;							\
    } while (0)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {									\
    union								\
      {									\
	DItype __ll;							\
	struct {USItype __l, __h;} __i;					\
      }  __a, __b, __s;							\
    __a.__i.__l = (al);							\
    __a.__i.__h = (ah);							\
    __b.__i.__l = (bl);							\
    __b.__i.__h = (bh);							\
    __asm__ ("fisub.dd %1,%2,%0"					\
	     : "=f" (__s.__ll)						\
	     : "%f" (__a.__ll), "f" (__b.__ll));			\
    (sh) = __s.__i.__h;							\
    (sl) = __s.__i.__l;							\
    } while (0)
#endif
#endif /* __i860__ */

#if defined (___IBMR2__) /* IBM RS6000 */
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("a%I5 %1,%4,%5
	ae %0,%2,%3"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "%r" ((USItype)(ah)),					\
	     "r" ((USItype)(bh)),					\
	     "%r" ((USItype)(al)),					\
	     "rI" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sf%I4 %1,%5,%4
	sfe %0,%3,%2"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "r" ((USItype)(ah)),					\
	     "r" ((USItype)(bh)),					\
	     "rI" ((USItype)(al)),					\
	     "r" ((USItype)(bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("mul %0,%2,%3"						\
	     : "=r" ((USItype)(xh)),					\
	       "=q" ((USItype)(xl))					\
	     : "r" (__m0),						\
	       "r" (__m1));						\
    (xh) += ((((SItype) __m0 >> 31) & __m1)				\
	     + (((SItype) __m1 >> 31) & __m0));				\
  } while (0)
#define smul_ppmm(xh, xl, m0, m1) \
  __asm__ ("mul %0,%2,%3"						\
	   : "=r" ((USItype)(xh)),					\
	     "=q" ((USItype)(xl))					\
	   : "r" ((USItype)(m0)),					\
	     "r" ((USItype)(m1)))
#define UMUL_TIME 8
#define sdiv_qrnnd(q, r, nh, nl, d) \
  __asm__ ("div %0,%2,%4"						\
	   : "=r" ((USItype)(q)), "=q" ((USItype)(r))			\
	   : "r" ((USItype)(nh)), "1" ((USItype)(nl)), "r" ((USItype)(d)))
#define UDIV_TIME 40
#define UDIV_NEEDS_NORMALIZATION 1
#define count_leading_zeros(count, x) \
  __asm__ ("cntlz %0,%1"						\
	   : "=r" ((USItype)(count))					\
	   : "r" ((USItype)(x)))
#endif /* ___IBMR2__ */

#if defined (__mc68000__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add%.l %5,%1
	addx%.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
	subx%.l %3,%0"							\
	   : "=d" ((USItype)(sh)),					\
	     "=&d" ((USItype)(sl))					\
	   : "0" ((USItype)(ah)),					\
	     "d" ((USItype)(bh)),					\
	     "1" ((USItype)(al)),					\
	     "g" ((USItype)(bl)))
#if defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)
#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)))
#define count_leading_zeros(count, x) \
  __asm__ ("bfffo %1{%b2:%b2},%0"					\
	   : "=d" ((USItype)(count))					\
	   : "od" ((USItype)(x)), "n" (0))
#else /* not mc68020 */
#define umul_ppmm(xh, xl, a, b) \
  __asm__ ("| Inlined umul_ppmm
	movel	%2,d0
	movel	%3,d1
	movel	d0,d2
	swap	d0
	movel	d1,d3
	swap	d1
	movew	d2,d4
	mulu	d3,d4
	mulu	d1,d2
	mulu	d0,d3
	mulu	d0,d1
	movel	d4,d0
	eorw	d0,d0
	swap	d0
	addl	d0,d2
	addl	d3,d2
	jcc	1f
	addl	#65536,d1
1:	swap	d2
	moveq	#0,d0
	movew	d2,d0
	movew	d4,d2
	movel	d2,%1
	addl	d1,d0
	movel	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 mc68020 */
#endif /* mc68000 */

#if defined (__m88000__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addu.co %1,%r4,%r5
	addu.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
	subu.ci %0,%r2,%r3"						\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "rJ" ((USItype)(ah)),					\
	     "rJ" ((USItype)(bh)),					\
	     "rJ" ((USItype)(al)),					\
	     "rJ" ((USItype)(bl)))
#define UMUL_TIME 17
#define UDIV_TIME 150
#define count_leading_zeros(count, x) \
  do {									\
    USItype __cbtmp;							\
    __asm__ ("ff1 %0,%1"						\
	     : "=r" (__cbtmp)						\
	     : "r" ((USItype)(x)));					\
    (count) = __cbtmp ^ 31;						\
  } while (0)
#if defined (__mc88110__)
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("mulu.d	r10,%2,%3
	or	%0,r10,0
	or	%1,r11,0"						\
	   : "=r" (w1),							\
	     "=r" (w0)							\
	   : "r" ((USItype)(u)),					\
	     "r" ((USItype)(v))						\
	   : "r10", "r11")
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("or	r10,%2,0
	or	r11,%3,0
	divu.d	r10,r10,%4
	mulu	%1,%4,r11
	subu	%1,%3,%1
	or	%0,r11,0"						\
	   : "=r" (q),							\
	     "=&r" (r)							\
	   : "r" ((USItype)(n1)),					\
	     "r" ((USItype)(n0)),					\
	     "r" ((USItype)(d))						\
	   : "r10", "r11")
#endif
#endif /* __m88000__ */

#if defined (__mips__)
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("multu %2,%3
	mflo %0
	mfhi %1"							\
	   : "=d" ((USItype)(w0)),					\
	     "=d" ((USItype)(w1))					\
	   : "d" ((USItype)(u)),					\
	     "d" ((USItype)(v)))
#define UMUL_TIME 5
#define UDIV_TIME 100
#endif /* __mips__ */

#if defined (__ns32000__)
#define __umulsidi3(u, v) \
  ({UDItype __w;							\
    __asm__ ("meid %2,%0"						\
	     : "=g" (__w)						\
	     : "%0" ((USItype)(u)),					\
	       "g" ((USItype)(v)));					\
    __w; })
#define div_qrnnd(q, r, n1, n0, d) \
  __asm__ ("movd %2,r0
	movd %3,r1
	deid %4,r0
	movd r1,%0
	movd r0,%1"							\
	   : "=g" ((USItype)(q)),					\
	     "=g" ((USItype)(r))					\
	   : "g" ((USItype)(n0)),					\
	     "g" ((USItype)(n1)),					\
	     "g" ((USItype)(d))						\
	   : "r0", "r1")
#endif /* __ns32000__ */

#if defined (__pyr__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addw	%5,%1
	addwc	%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__ ("subw	%5,%1
	subwb	%3,%0"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "0" ((USItype)(ah)),					\
	     "g" ((USItype)(bh)),					\
	     "1" ((USItype)(al)),					\
	     "g" ((USItype)(bl)))
/* This insn doesn't work on ancient pyramids.  */
#define umul_ppmm(w1, w0, u, v) \
  ({union {								\
	UDItype __ll;							\
	struct {USItype __h, __l;} __i;					\
     } __xx;								\
  __xx.__i.__l = u;							\
  __asm__ ("uemul %3,%0"						\
	   : "=r" (__xx.__i.__h),					\
	     "=r" (__xx.__i.__l)					\
	   : "1" (__xx.__i.__l),					\
	     "g" ((UDItype)(v)));					\
  (w1) = __xx.__i.__h;							\
  (w0) = __xx.__i.__l;})
#endif /* __pyr__ */

#if defined (__ibm032__) /* RT/ROMP */
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("a %1,%5
	ae %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
	se %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
	mts	r10,%2
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	cas	%0,r2,r0
	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 (__sparc__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addcc %4,%5,%1
	addx %2,%3,%0"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "%r" ((USItype)(ah)),					\
	     "rI" ((USItype)(bh)),					\
	     "%r" ((USItype)(al)),					\
	     "rI" ((USItype)(bl))					\
	   __CLOBBER_CC)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subcc %4,%5,%1
	subx %2,%3,%0"							\
	   : "=r" ((USItype)(sh)),					\
	     "=&r" ((USItype)(sl))					\
	   : "r" ((USItype)(ah)),					\
	     "rI" ((USItype)(bh)),					\
	     "r" ((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
	wr	%%g0,%2,%%y	! Not a delayed write for sparclite
	tst	%%g0
	divscc	%3,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%0
	rd	%%y,%1
	bl,a 1f
	add	%1,%4,%1
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) \
  __asm__ ("scan %1,0,%0"						\
	   : "=r" ((USItype)(x))					\
	   : "r" ((USItype)(count)))
#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
	wr	%%g0,%2,%%y	! SPARC has 0-3 delay insn after a wr
	sra	%3,31,%%g2	! Don't move this insn
	and	%2,%%g2,%%g2	! Don't move this insn
	andcc	%%g0,0,%%g1	! Don't move this insn
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,0,%%g1
	add	%%g1,%%g2,%0
	rd	%%y,%1"							\
	   : "=r" ((USItype)(w1)),					\
	     "=r" ((USItype)(w0))					\
	   : "%rI" ((USItype)(u)),					\
	     "r" ((USItype)(v))						\
	   : "%g1", "%g2" __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
	mov	32,%%g1
	subcc	%1,%2,%%g0
1:	bcs	5f
	 addxcc %0,%0,%0	! shift n1n0 and a q-bit in lsb
	sub	%1,%2,%1	! this kills msb of n
	addx	%1,%1,%1	! so this can't give carry
	subcc	%%g1,1,%%g1
2:	bne	1b
	 subcc	%1,%2,%%g0
	bcs	3f
	 addxcc %0,%0,%0	! shift n1n0 and a q-bit in lsb
	b	3f
	 sub	%1,%2,%1	! this kills msb of n
4:	sub	%1,%2,%1
5:	addxcc	%1,%1,%1
	bcc	2b
	 subcc	%%g1,1,%%g1
! Got carry from n.  Subtract next step to cancel this carry.
	bne	4b
	 addcc	%0,%0,%0	! shift n1n0 and a 0-bit in lsb
	sub	%1,%2,%1
3:	xnor	%0,0,%0
	! 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 /* __sparc__ */

#if defined (__vax__)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl2 %5,%1
	adwc %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
	sbwc %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)
#endif /* __vax__ */

#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 {									\
    USItype __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 {									\
    USItype __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 {									\
    USItype __x0, __x1, __x2, __x3;					\
    USItype __ul, __vl, __uh, __vh;					\
									\
    __ul = __ll_lowpart (u);						\
    __uh = __ll_highpart (u);						\
    __vl = __ll_lowpart (v);						\
    __vh = __ll_highpart (v);						\
									\
    __x0 = (USItype) __ul * __vl;					\
    __x1 = (USItype) __ul * __vh;					\
    __x2 = (USItype) __uh * __vl;					\
    __x3 = (USItype) __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) \
  ({DIunion __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 {									\
    USItype __d1, __d0, __q1, __q0;					\
    USItype __r1, __r0, __m;						\
    __d1 = __ll_highpart (d);						\
    __d0 = __ll_lowpart (d);						\
									\
    __r1 = (n1) % __d1;							\
    __q1 = (n1) / __d1;							\
    __m = (USItype) __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 = (USItype) __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) = (USItype) __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 {									\
    USItype __xr = (x);							\
    USItype __a;							\
									\
    if (SI_TYPE_SIZE <= 32)						\
      {									\
	__a = __xr < (1<<2*__BITS4)					\
	  ? (__xr < (1<<__BITS4) ? 0 : __BITS4)				\
	  : (__xr < (1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);		\
      }									\
    else								\
      {									\
	for (__a = SI_TYPE_SIZE - 8; __a > 0; __a -= 8)		\
	  if (((__xr >> __a) & 0xff) != 0)				\
	    break;							\
      }									\
									\
    (count) = SI_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);		\
  } while (0)
#endif

#ifndef UDIV_NEEDS_NORMALIZATION
#define UDIV_NEEDS_NORMALIZATION 0
#endif