1504 lines
49 KiB
C
1504 lines
49 KiB
C
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
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Free Software Foundation, Inc.
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This definition file is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2, or (at your option) any later version.
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This definition file is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* You have to define the following before including this file:
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UWtype -- An unsigned type, default type for operations (typically a "word")
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UHWtype -- An unsigned type, at least half the size of UWtype.
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UDWtype -- An unsigned type, at least twice as large a UWtype
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W_TYPE_SIZE -- size in bits of UWtype
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UQItype -- Unsigned 8 bit type.
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SItype, USItype -- Signed and unsigned 32 bit types.
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DItype, UDItype -- Signed and unsigned 64 bit types.
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On a 32 bit machine UWtype should typically be USItype;
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on a 64 bit machine, UWtype should typically be UDItype.
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*/
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#define __BITS4 (W_TYPE_SIZE / 4)
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#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
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#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
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#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
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#ifndef W_TYPE_SIZE
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#define W_TYPE_SIZE 32
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#define UWtype USItype
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#define UHWtype USItype
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#define UDWtype UDItype
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#endif
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/* Define auxiliary asm macros.
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1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
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UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
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word product in HIGH_PROD and LOW_PROD.
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2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
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UDWtype product. This is just a variant of umul_ppmm.
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3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
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denominator) divides a UDWtype, composed by the UWtype integers
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HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
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in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
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than DENOMINATOR for correct operation. If, in addition, the most
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significant bit of DENOMINATOR must be 1, then the pre-processor symbol
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UDIV_NEEDS_NORMALIZATION is defined to 1.
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4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
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denominator). Like udiv_qrnnd but the numbers are signed. The quotient
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is rounded towards 0.
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5) count_leading_zeros(count, x) counts the number of zero-bits from the
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msb to the first non-zero bit in the UWtype X. This is the number of
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steps X needs to be shifted left to set the msb. Undefined for X == 0,
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unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
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6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
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from the least significant end.
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7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
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high_addend_2, low_addend_2) adds two UWtype integers, composed by
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HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
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respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
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(i.e. carry out) is not stored anywhere, and is lost.
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8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
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high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
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composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
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LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
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and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
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and is lost.
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If any of these macros are left undefined for a particular CPU,
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C macros are used. */
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/* The CPUs come in alphabetical order below.
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Please add support for more CPUs here, or improve the current support
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for the CPUs below!
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(E.g. WE32100, IBM360.) */
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#if defined (__GNUC__) && !defined (NO_ASM)
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/* We sometimes need to clobber "cc" with gcc2, but that would not be
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understood by gcc1. Use cpp to avoid major code duplication. */
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#if __GNUC__ < 2
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#define __CLOBBER_CC
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#define __AND_CLOBBER_CC
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#else /* __GNUC__ >= 2 */
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#define __CLOBBER_CC : "cc"
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#define __AND_CLOBBER_CC , "cc"
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#endif /* __GNUC__ < 2 */
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#if (defined (__a29k__) || defined (_AM29K)) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add %1,%4,%5\n\taddc %0,%2,%3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"%r" ((USItype) (al)), \
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"rI" ((USItype) (bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub %1,%4,%5\n\tsubc %0,%2,%3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"r" ((USItype) (al)), \
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"rI" ((USItype) (bl)))
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#define umul_ppmm(xh, xl, m0, m1) \
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do { \
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USItype __m0 = (m0), __m1 = (m1); \
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__asm__ ("multiplu %0,%1,%2" \
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: "=r" ((USItype) (xl)) \
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: "r" (__m0), \
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"r" (__m1)); \
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__asm__ ("multmu %0,%1,%2" \
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: "=r" ((USItype) (xh)) \
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: "r" (__m0), \
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"r" (__m1)); \
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} while (0)
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#define udiv_qrnnd(q, r, n1, n0, d) \
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__asm__ ("dividu %0,%3,%4" \
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: "=r" ((USItype) (q)), \
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"=q" ((USItype) (r)) \
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: "1" ((USItype) (n1)), \
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"r" ((USItype) (n0)), \
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"r" ((USItype) (d)))
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#define count_leading_zeros(count, x) \
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__asm__ ("clz %0,%1" \
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: "=r" ((USItype) (count)) \
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: "r" ((USItype) (x)))
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#define COUNT_LEADING_ZEROS_0 32
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#endif /* __a29k__ */
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#if defined (__alpha) && W_TYPE_SIZE == 64
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#define umul_ppmm(ph, pl, m0, m1) \
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do { \
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UDItype __m0 = (m0), __m1 = (m1); \
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__asm__ ("umulh %r1,%2,%0" \
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: "=r" ((UDItype) ph) \
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: "%rJ" (__m0), \
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"rI" (__m1)); \
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(pl) = __m0 * __m1; \
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} while (0)
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#define UMUL_TIME 46
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#ifndef LONGLONG_STANDALONE
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#define udiv_qrnnd(q, r, n1, n0, d) \
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do { UDItype __r; \
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(q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
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(r) = __r; \
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} while (0)
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extern UDItype __udiv_qrnnd PARAMS ((UDItype *, UDItype, UDItype, UDItype));
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#define UDIV_TIME 220
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#endif /* LONGLONG_STANDALONE */
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#ifdef __alpha_cix__
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#define count_leading_zeros(COUNT,X) \
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__asm__("ctlz %1,%0" : "=r"(COUNT) : "r"(X))
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#define count_trailing_zeros(COUNT,X) \
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__asm__("cttz %1,%0" : "=r"(COUNT) : "r"(X))
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#define COUNT_LEADING_ZEROS_0 64
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#else
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extern const UQItype __clz_tab[];
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#define count_leading_zeros(COUNT,X) \
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do { \
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UDItype __xr = (X), __t, __a; \
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__asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr)); \
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__a = __clz_tab[__t ^ 0xff] - 1; \
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__asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a)); \
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(COUNT) = 64 - (__clz_tab[__t] + __a*8); \
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} while (0)
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#define count_trailing_zeros(COUNT,X) \
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do { \
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UDItype __xr = (X), __t, __a; \
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__asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr)); \
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__t = ~__t & -~__t; \
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__a = ((__t & 0xCC) != 0) * 2; \
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__a += ((__t & 0xF0) != 0) * 4; \
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__a += ((__t & 0xAA) != 0); \
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__asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a)); \
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__a <<= 3; \
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__t &= -__t; \
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__a += ((__t & 0xCC) != 0) * 2; \
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__a += ((__t & 0xF0) != 0) * 4; \
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__a += ((__t & 0xAA) != 0); \
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(COUNT) = __a; \
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} while (0)
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#endif /* __alpha_cix__ */
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#endif /* __alpha */
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#if defined (__arc__) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%r" ((USItype) (ah)), \
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"rIJ" ((USItype) (bh)), \
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"%r" ((USItype) (al)), \
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"rIJ" ((USItype) (bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "r" ((USItype) (ah)), \
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"rIJ" ((USItype) (bh)), \
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"r" ((USItype) (al)), \
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"rIJ" ((USItype) (bl)))
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/* Call libgcc routine. */
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#define umul_ppmm(w1, w0, u, v) \
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do { \
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DWunion __w; \
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__w.ll = __umulsidi3 (u, v); \
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w1 = __w.s.high; \
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w0 = __w.s.low; \
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} while (0)
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#define __umulsidi3 __umulsidi3
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UDItype __umulsidi3 (USItype, USItype);
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#endif
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#if defined (__arm__) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"%r" ((USItype) (al)), \
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"rI" ((USItype) (bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"r" ((USItype) (al)), \
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"rI" ((USItype) (bl)))
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#define umul_ppmm(xh, xl, a, b) \
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{register USItype __t0, __t1, __t2; \
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__asm__ ("%@ Inlined umul_ppmm\n" \
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" mov %2, %5, lsr #16\n" \
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" mov %0, %6, lsr #16\n" \
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" bic %3, %5, %2, lsl #16\n" \
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" bic %4, %6, %0, lsl #16\n" \
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" mul %1, %3, %4\n" \
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" mul %4, %2, %4\n" \
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" mul %3, %0, %3\n" \
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" mul %0, %2, %0\n" \
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" adds %3, %4, %3\n" \
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" addcs %0, %0, #65536\n" \
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" adds %1, %1, %3, lsl #16\n" \
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" adc %0, %0, %3, lsr #16" \
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: "=&r" ((USItype) (xh)), \
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"=r" ((USItype) (xl)), \
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"=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
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: "r" ((USItype) (a)), \
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"r" ((USItype) (b)));}
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#define UMUL_TIME 20
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#define UDIV_TIME 100
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#endif /* __arm__ */
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#if defined (__clipper__) && W_TYPE_SIZE == 32
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#define umul_ppmm(w1, w0, u, v) \
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({union {UDItype __ll; \
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struct {USItype __l, __h;} __i; \
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} __xx; \
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__asm__ ("mulwux %2,%0" \
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: "=r" (__xx.__ll) \
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: "%0" ((USItype) (u)), \
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"r" ((USItype) (v))); \
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(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
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#define smul_ppmm(w1, w0, u, v) \
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({union {DItype __ll; \
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struct {SItype __l, __h;} __i; \
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} __xx; \
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__asm__ ("mulwx %2,%0" \
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: "=r" (__xx.__ll) \
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: "%0" ((SItype) (u)), \
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"r" ((SItype) (v))); \
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(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
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#define __umulsidi3(u, v) \
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({UDItype __w; \
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__asm__ ("mulwux %2,%0" \
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: "=r" (__w) \
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: "%0" ((USItype) (u)), \
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"r" ((USItype) (v))); \
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__w; })
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#endif /* __clipper__ */
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#if defined (__gmicro__) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add.w %5,%1\n\taddx %3,%0" \
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: "=g" ((USItype) (sh)), \
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"=&g" ((USItype) (sl)) \
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: "%0" ((USItype) (ah)), \
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"g" ((USItype) (bh)), \
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"%1" ((USItype) (al)), \
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"g" ((USItype) (bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub.w %5,%1\n\tsubx %3,%0" \
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: "=g" ((USItype) (sh)), \
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"=&g" ((USItype) (sl)) \
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: "0" ((USItype) (ah)), \
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"g" ((USItype) (bh)), \
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"1" ((USItype) (al)), \
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"g" ((USItype) (bl)))
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#define umul_ppmm(ph, pl, m0, m1) \
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__asm__ ("mulx %3,%0,%1" \
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: "=g" ((USItype) (ph)), \
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"=r" ((USItype) (pl)) \
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: "%0" ((USItype) (m0)), \
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"g" ((USItype) (m1)))
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#define udiv_qrnnd(q, r, nh, nl, d) \
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__asm__ ("divx %4,%0,%1" \
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: "=g" ((USItype) (q)), \
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"=r" ((USItype) (r)) \
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: "1" ((USItype) (nh)), \
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"0" ((USItype) (nl)), \
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"g" ((USItype) (d)))
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#define count_leading_zeros(count, x) \
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__asm__ ("bsch/1 %1,%0" \
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: "=g" (count) \
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: "g" ((USItype) (x)), \
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"0" ((USItype) 0))
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#endif
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#if defined (__hppa) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%rM" ((USItype) (ah)), \
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"rM" ((USItype) (bh)), \
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"%rM" ((USItype) (al)), \
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"rM" ((USItype) (bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "rM" ((USItype) (ah)), \
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"rM" ((USItype) (bh)), \
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"rM" ((USItype) (al)), \
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"rM" ((USItype) (bl)))
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#if defined (_PA_RISC1_1)
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#define umul_ppmm(w1, w0, u, v) \
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do { \
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union \
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{ \
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UDItype __f; \
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struct {USItype __w1, __w0;} __w1w0; \
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} __t; \
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__asm__ ("xmpyu %1,%2,%0" \
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: "=x" (__t.__f) \
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: "x" ((USItype) (u)), \
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"x" ((USItype) (v))); \
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(w1) = __t.__w1w0.__w1; \
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(w0) = __t.__w1w0.__w0; \
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} while (0)
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#define UMUL_TIME 8
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#else
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#define UMUL_TIME 30
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#endif
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#define UDIV_TIME 40
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#define count_leading_zeros(count, x) \
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do { \
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USItype __tmp; \
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__asm__ ( \
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"ldi 1,%0\n" \
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" extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
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" extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
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" ldo 16(%0),%0 ; Yes. Perform add.\n" \
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" 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 (__i860__) && W_TYPE_SIZE == 32
|
|
#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 (__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) \
|
|
|| defined(__NeXT__)
|
|
#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) \
|
|
|| defined(__NeXT__)
|
|
#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__ */
|
|
|
|
#if (defined (_ARCH_PPC) || defined (_IBMR2))
|
|
#if 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)
|
|
#endif /* W_TYPE_SIZE */
|
|
#define count_leading_zeros(count, x) \
|
|
__asm__ ("{cntlz|cntlzw} %0,%1" \
|
|
: "=r" ((USItype) (count)) \
|
|
: "r" ((USItype) (x)))
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
#if defined (_ARCH_PPC)
|
|
#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
|
|
#elif defined (_ARCH_PWR)
|
|
#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\n\taddwc %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\n\tsubwb %3,%0" \
|
|
: "=r" ((USItype) (sh)), \
|
|
"=&r" ((USItype) (sl)) \
|
|
: "0" ((USItype) (ah)), \
|
|
"g" ((USItype) (bh)), \
|
|
"1" ((USItype) (al)), \
|
|
"g" ((USItype) (bl)))
|
|
/* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP. */
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
({union {UDItype __ll; \
|
|
struct {USItype __h, __l;} __i; \
|
|
} __xx; \
|
|
__asm__ ("movw %1,%R0\n\tuemul %2,%0" \
|
|
: "=&r" (__xx.__ll) \
|
|
: "g" ((USItype) (u)), \
|
|
"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\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
|