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glibc/stdlib/longlong.h

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initial import
1995-02-18 01:27:10 +00:00
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This 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 Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this file; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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
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))
/* 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 non-zero 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! */
#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__)) && W_TYPE_SIZE == 32
#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 (__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
#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 ();
#define UDIV_TIME 220
#endif
#if defined (__arm__) && W_TYPE_SIZE == 32
#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)))
#define umul_ppmm(xh, xl, a, b) \
__asm__ ("; Inlined umul_ppmm
mov r0,%2 lsr 16
mov r2,%3 lsr 16
bic r1,%2,r0 lsl 16
bic r2,%3,r2 lsl 16
mul %1,r1,r2
mul r2,r0,r2
mul r1,%0,r1
mul %0,r0,%0
adds r1,r2,r1
addcs %0,%0,0x10000
adds %1,%1,r1 lsl 16
adc %0,%0,r1 lsr 16" \
: "=&r" ((USItype)(xh)), \
"=r" ((USItype)(xl)) \
: "r" ((USItype)(a)), \
"r" ((USItype)(b)) \
: "r0", "r1", "r2")
#define UMUL_TIME 20
#define UDIV_TIME 100
#endif /* __arm__ */
#if defined (__clipper__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
({union {UDItype __ll; \
struct {USItype __l, __h;} __i; \
} __xx; \
__asm__ ("mulwux %2,%0" \
: "=r" (__xx.__ll) \
: "%0" ((USItype)(u)), \
"r" ((USItype)(v))); \
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define smul_ppmm(w1, w0, u, v) \
({union {DItype __ll; \
struct {SItype __l, __h;} __i; \
} __xx; \
__asm__ ("mulwx %2,%0" \
: "=r" (__xx.__ll) \
: "%0" ((SItype)(u)), \
"r" ((SItype)(v))); \
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
({UDItype __w; \
__asm__ ("mulwux %2,%0" \
: "=r" (__w) \
: "%0" ((USItype)(u)), \
"r" ((USItype)(v))); \
__w; })
#endif /* __clipper__ */
#if defined (__gmicro__) && W_TYPE_SIZE == 32
#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) && W_TYPE_SIZE == 32
#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(wh, wl, u, v) \
do { \
union {UDItype __ll; \
struct {USItype __h, __l;} __i; \
} __xx; \
__asm__ ("xmpyu %1,%2,%0" \
: "=x" (__xx.__ll) \
: "x" ((USItype)(u)), \
"x" ((USItype)(v))); \
(wh) = __xx.__i.__h; \
(wl) = __xx.__i.__l; \
} while (0)
#define UMUL_TIME 8
#define UDIV_TIME 60
#else
#define UMUL_TIME 40
#define UDIV_TIME 80
#endif
#define udiv_qrnnd(q, r, n1, n0, d) \
do { USItype __r; \
(q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
(r) = __r; \
} while (0)
extern USItype __udiv_qrnnd ();
#define count_leading_zeros(count, x) \
do { \
USItype __tmp; \
__asm__ ( \
"ldi 1,%0
extru,= %1,15,16,%%r0 ; Bits 31..16 zero?
extru,tr %1,15,16,%1 ; No. Shift down, skip add.
ldo 16(%0),%0 ; Yes. Perform add.
extru,= %1,23,8,%%r0 ; Bits 15..8 zero?
extru,tr %1,23,8,%1 ; No. Shift down, skip add.
ldo 8(%0),%0 ; Yes. Perform add.
extru,= %1,27,4,%%r0 ; Bits 7..4 zero?
extru,tr %1,27,4,%1 ; No. Shift down, skip add.
ldo 4(%0),%0 ; Yes. Perform add.
extru,= %1,29,2,%%r0 ; Bits 3..2 zero?
extru,tr %1,29,2,%1 ; No. Shift down, skip add.
ldo 2(%0),%0 ; Yes. Perform add.
extru %1,30,1,%1 ; Extract bit 1.
sub %0,%1,%0 ; Subtract it.
" : "=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
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 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 (__mc68000__) && W_TYPE_SIZE == 32
#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)) && W_TYPE_SIZE == 32
#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
move%.l %2,%/d0
move%.l %3,%/d1
move%.l %/d0,%/d2
swap %/d0
move%.l %/d1,%/d3
swap %/d1
move%.w %/d2,%/d4
mulu %/d3,%/d4
mulu %/d1,%/d2
mulu %/d0,%/d3
mulu %/d0,%/d1
move%.l %/d4,%/d0
eor%.w %/d0,%/d0
swap %/d0
add%.l %/d0,%/d2
add%.l %/d3,%/d2
jcc 1f
add%.l #65536,%/d1
1: swap %/d2
moveq #0,%/d0
move%.w %/d2,%/d0
move%.w %/d4,%/d2
move%.l %/d2,%1
add%.l %/d1,%/d0
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 mc68020 */
#endif /* mc68000 */
#if defined (__m88000__) && W_TYPE_SIZE == 32
#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 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(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
mflo %0
mfhi %1" \
: "=d" ((USItype)(w0)), \
"=d" ((USItype)(w1)) \
: "d" ((USItype)(u)), \
"d" ((USItype)(v)))
#define UMUL_TIME 10
#define UDIV_TIME 100
#endif /* __mips__ */
#if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64
#define umul_ppmm(w1, w0, u, v) \
__asm__ ("dmultu %2,%3
mflo %0
mfhi %1" \
: "=d" ((UDItype)(w0)), \
"=d" ((UDItype)(w1)) \
: "d" ((UDItype)(u)), \
"d" ((UDItype)(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__ */
#if (defined (__powerpc__) || defined (___IBMR2__)) && 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" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "%r" ((USItype)(ah)), \
"%r" ((USItype)(al)), \
"rI" ((USItype)(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" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "%r" ((USItype)(ah)), \
"%r" ((USItype)(al)), \
"rI" ((USItype)(bl))); \
else \
__asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
: "=r" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "%r" ((USItype)(ah)), \
"r" ((USItype)(bh)), \
"%r" ((USItype)(al)), \
"rI" ((USItype)(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" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "r" ((USItype)(bh)), \
"rI" ((USItype)(al)), \
"r" ((USItype)(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" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "r" ((USItype)(bh)), \
"rI" ((USItype)(al)), \
"r" ((USItype)(bl))); \
else if (__builtin_constant_p (bh) && (bh) == 0) \
__asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
: "=r" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "r" ((USItype)(ah)), \
"rI" ((USItype)(al)), \
"r" ((USItype)(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" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "r" ((USItype)(ah)), \
"rI" ((USItype)(al)), \
"r" ((USItype)(bl))); \
else \
__asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
: "=r" ((USItype)(sh)), \
"=&r" ((USItype)(sl)) \
: "r" ((USItype)(ah)), \
"r" ((USItype)(bh)), \
"rI" ((USItype)(al)), \
"r" ((USItype)(bl))); \
} while (0)
#define count_leading_zeros(count, x) \
__asm__ ("{cntlz|cntlzw} %0,%1" \
: "=r" ((USItype)(count)) \
: "r" ((USItype)(x)))
#if defined (__powerpc__)
#define umul_ppmm(ph, pl, m0, m1) \
do { \
USItype __m0 = (m0), __m1 = (m1); \
__asm__ ("mulhwu %0,%1,%2" \
: "=r" ((USItype) 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" ((SItype) ph) \
: "%r" (__m0), \
"r" (__m1)); \
(pl) = __m0 * __m1; \
} while (0)
#define SMUL_TIME 14
#define UDIV_TIME 120
#else
#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 UMUL_TIME 8
#define smul_ppmm(xh, xl, m0, m1) \
__asm__ ("mul %0,%2,%3" \
: "=r" ((SItype)(xh)), \
"=q" ((SItype)(xl)) \
: "r" (m0), \
"r" (m1))
#define SMUL_TIME 4
#define sdiv_qrnnd(q, r, nh, nl, d) \
__asm__ ("div %0,%2,%4" \
: "=r" ((SItype)(q)), "=q" ((SItype)(r)) \
: "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d)))
#define UDIV_TIME 100
#endif
#endif /* Power architecture variants. */
#if defined (__pyr__) && W_TYPE_SIZE == 32
#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" ((USItype)(v))); \
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#endif /* __pyr__ */
#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
#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__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
__asm__ ("addcc %r4,%5,%1
addx %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
subx %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__)
/* Don't match immediate range because, 1) it is not often useful,
2) the 'I' flag thinks of the range as a 13 bit signed interval,
while we want to match a 13 bit interval, sign extended to 32 bits,
but INTERPRETED AS UNSIGNED. */
#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 UMUL_TIME 5
/* We might want to leave this undefined for `SuperSPARC (tm)' since
its implementation is crippled and often traps. */
#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)))
#define UDIV_TIME 25
#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 UMUL_TIME 5
#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 */
#define udiv_qrnnd(q, r, n1, n0, d) \
do { USItype __r; \
(q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
(r) = __r; \
} while (0)
extern USItype __udiv_qrnnd ();
#define UDIV_TIME 140
#endif /* __sparclite__ */
#endif /* __sparc_v8__ */
#endif /* __sparc__ */
#if defined (__vax__) && W_TYPE_SIZE == 32
#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" \
: "=g" (__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" (__n1n0.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)
#define umul_ppmm_off(xh, xl, m0, m1) \
do { \
union {long int __ll; \
struct {unsigned int __h, __l;} __i; \
} __xx; \
__asm__ ("mult %S0,%H3" \
: "=r" (__xx.__i.__h), \
"=r" (__xx.__i.__l) \
: "%1" (m0), \
"rQR" (m1)); \
(xh) = __xx.__i.__h + ((((signed int) m0 >> 15) & m1) \
+ (((signed int) m1 >> 15) & m0)); \
(xl) = __xx.__i.__l; \
} while (0)
#endif /* __z8000__ */
#endif /* __GNUC__ */
#if !defined (umul_ppmm) && defined (__umulsidi3)
#define umul_ppmm(ph, pl, m0, m1) \
{ \
UDWtype __ll = __umulsidi3 (m0, m1); \
ph = (UWtype) (__ll >> W_TYPE_SIZE); \
pl = (UWtype) __ll; \
}
#endif
#if !defined (__umulsidi3)
#define __umulsidi3(u, v) \
({UWtype __hi, __lo; \
umul_ppmm (__hi, __lo, u, v); \
((UDWtype) __hi << W_TYPE_SIZE) | __lo; })
#endif
/* 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) << W_TYPE_SIZE/2) + __ll_lowpart (__x0);\
} while (0)
#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, __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 { \
UWtype __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
#ifdef __STDC__
const
#endif
unsigned char __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)
/* This version gives a well-defined value for zero. */
#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
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