1362 строки
39 KiB
C
1362 строки
39 KiB
C
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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* Note: I added some stuff for use with gnupg
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*
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* Copyright (C) 1991, 1992, 1993, 1994, 1996, 1998,
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* 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this file; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA. */
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#include <linux/count_zeros.h>
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/* You have to define the following before including this file:
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*
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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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*
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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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*
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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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/* This is used to make sure no undesirable sharing between different libraries
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that use this file takes place. */
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#ifndef __MPN
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#define __MPN(x) __##x
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#endif
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/* Define auxiliary asm macros.
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*
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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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*
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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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*
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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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*
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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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*
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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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*
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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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*
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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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*
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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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#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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/***************************************
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************** A29K *****************
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***************************************/
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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" \
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"addc %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" \
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"subc %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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#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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(ph) = __builtin_alpha_umulh(__m0, __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(UDItype *, UDItype, UDItype, UDItype);
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#define UDIV_TIME 220
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#endif /* LONGLONG_STANDALONE */
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#endif /* __alpha */
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/***************************************
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************** ARM ******************
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***************************************/
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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" \
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"adc %0, %2, %3" \
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: "=r" (sh), \
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"=&r" (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" \
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"sbc %0, %2, %3" \
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: "=r" (sh), \
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"=&r" (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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#if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__
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#define umul_ppmm(xh, xl, a, b) \
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__asm__ ("@ Inlined umul_ppmm\n" \
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"mov %|r0, %2, lsr #16 @ AAAA\n" \
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"mov %|r2, %3, lsr #16 @ BBBB\n" \
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"bic %|r1, %2, %|r0, lsl #16 @ aaaa\n" \
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"bic %0, %3, %|r2, lsl #16 @ bbbb\n" \
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"mul %1, %|r1, %|r2 @ aaaa * BBBB\n" \
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"mul %|r2, %|r0, %|r2 @ AAAA * BBBB\n" \
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"mul %|r1, %0, %|r1 @ aaaa * bbbb\n" \
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"mul %0, %|r0, %0 @ AAAA * bbbb\n" \
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"adds %|r0, %1, %0 @ central sum\n" \
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"addcs %|r2, %|r2, #65536\n" \
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"adds %1, %|r1, %|r0, lsl #16\n" \
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"adc %0, %|r2, %|r0, lsr #16" \
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: "=&r" (xh), \
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"=r" (xl) \
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: "r" ((USItype)(a)), \
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"r" ((USItype)(b)) \
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: "r0", "r1", "r2")
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#else
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#define umul_ppmm(xh, xl, a, b) \
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__asm__ ("@ Inlined umul_ppmm\n" \
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"umull %1, %0, %2, %3" \
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: "=&r" (xh), \
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"=&r" (xl) \
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: "r" ((USItype)(a)), \
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"r" ((USItype)(b)) \
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: "r0", "r1")
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#endif
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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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/***************************************
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************** CLIPPER **************
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***************************************/
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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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/***************************************
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************** GMICRO ***************
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***************************************/
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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" \
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"addx %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" \
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"subx %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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#endif
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/***************************************
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************** HPPA *****************
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***************************************/
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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" \
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"addc %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" \
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"subb %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 0 && defined(_PA_RISC1_1)
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/* xmpyu uses floating point register which is not allowed in Linux kernel. */
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#define umul_ppmm(wh, wl, u, v) \
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do { \
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union {UDItype __ll; \
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struct {USItype __h, __l; } __i; \
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} __xx; \
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__asm__ ("xmpyu %1,%2,%0" \
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: "=*f" (__xx.__ll) \
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: "*f" ((USItype)(u)), \
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"*f" ((USItype)(v))); \
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(wh) = __xx.__i.__h; \
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(wl) = __xx.__i.__l; \
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} while (0)
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#define UMUL_TIME 8
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#define UDIV_TIME 60
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#else
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#define UMUL_TIME 40
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#define UDIV_TIME 80
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#endif
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#if 0 /* #ifndef LONGLONG_STANDALONE */
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#define udiv_qrnnd(q, r, n1, n0, d) \
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do { USItype __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 USItype __udiv_qrnnd();
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#endif /* LONGLONG_STANDALONE */
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#endif /* hppa */
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/***************************************
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************** I370 *****************
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***************************************/
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#if (defined(__i370__) || defined(__mvs__)) && W_TYPE_SIZE == 32
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#define umul_ppmm(xh, xl, m0, m1) \
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do { \
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union {UDItype __ll; \
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struct {USItype __h, __l; } __i; \
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} __xx; \
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USItype __m0 = (m0), __m1 = (m1); \
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__asm__ ("mr %0,%3" \
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: "=r" (__xx.__i.__h), \
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"=r" (__xx.__i.__l) \
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: "%1" (__m0), \
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"r" (__m1)); \
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(xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
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(xh) += ((((SItype) __m0 >> 31) & __m1) \
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+ (((SItype) __m1 >> 31) & __m0)); \
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} while (0)
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#define smul_ppmm(xh, xl, m0, m1) \
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do { \
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union {DItype __ll; \
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struct {USItype __h, __l; } __i; \
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} __xx; \
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__asm__ ("mr %0,%3" \
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: "=r" (__xx.__i.__h), \
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"=r" (__xx.__i.__l) \
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: "%1" (m0), \
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"r" (m1)); \
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(xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
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} while (0)
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#define sdiv_qrnnd(q, r, n1, n0, d) \
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do { \
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union {DItype __ll; \
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struct {USItype __h, __l; } __i; \
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} __xx; \
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__xx.__i.__h = n1; __xx.__i.__l = n0; \
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__asm__ ("dr %0,%2" \
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: "=r" (__xx.__ll) \
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: "0" (__xx.__ll), "r" (d)); \
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(q) = __xx.__i.__l; (r) = __xx.__i.__h; \
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} while (0)
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#endif
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/***************************************
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************** I386 *****************
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***************************************/
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#undef __i386__
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#if (defined(__i386__) || defined(__i486__)) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("addl %5,%1\n" \
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"adcl %3,%0" \
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: "=r" (sh), \
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"=&r" (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)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subl %5,%1\n" \
|
|
"sbbl %3,%0" \
|
|
: "=r" (sh), \
|
|
"=&r" (sl) \
|
|
: "0" ((USItype)(ah)), \
|
|
"g" ((USItype)(bh)), \
|
|
"1" ((USItype)(al)), \
|
|
"g" ((USItype)(bl)))
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("mull %3" \
|
|
: "=a" (w0), \
|
|
"=d" (w1) \
|
|
: "%0" ((USItype)(u)), \
|
|
"rm" ((USItype)(v)))
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("divl %4" \
|
|
: "=a" (q), \
|
|
"=d" (r) \
|
|
: "0" ((USItype)(n0)), \
|
|
"1" ((USItype)(n1)), \
|
|
"rm" ((USItype)(d)))
|
|
#ifndef UMUL_TIME
|
|
#define UMUL_TIME 40
|
|
#endif
|
|
#ifndef UDIV_TIME
|
|
#define UDIV_TIME 40
|
|
#endif
|
|
#endif /* 80x86 */
|
|
|
|
/***************************************
|
|
************** I860 *****************
|
|
***************************************/
|
|
#if defined(__i860__) && W_TYPE_SIZE == 32
|
|
#define rshift_rhlc(r, h, l, c) \
|
|
__asm__ ("shr %3,r0,r0\n" \
|
|
"shrd %1,%2,%0" \
|
|
"=r" (r) : "r" (h), "r" (l), "rn" (c))
|
|
#endif /* i860 */
|
|
|
|
/***************************************
|
|
************** I960 *****************
|
|
***************************************/
|
|
#if defined(__i960__) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("cmpo 1,0\n" \
|
|
"addc %5,%4,%1\n" \
|
|
"addc %3,%2,%0" \
|
|
: "=r" ((USItype)(sh)), \
|
|
"=&r" ((USItype)(sl)) \
|
|
: "%dI" ((USItype)(ah)), \
|
|
"dI" ((USItype)(bh)), \
|
|
"%dI" ((USItype)(al)), \
|
|
"dI" ((USItype)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("cmpo 0,0\n" \
|
|
"subc %5,%4,%1\n" \
|
|
"subc %3,%2,%0" \
|
|
: "=r" ((USItype)(sh)), \
|
|
"=&r" ((USItype)(sl)) \
|
|
: "dI" ((USItype)(ah)), \
|
|
"dI" ((USItype)(bh)), \
|
|
"dI" ((USItype)(al)), \
|
|
"dI" ((USItype)(bl)))
|
|
#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; })
|
|
#define udiv_qrnnd(q, r, nh, nl, d) \
|
|
do { \
|
|
union {UDItype __ll; \
|
|
struct {USItype __l, __h; } __i; \
|
|
} __nn; \
|
|
__nn.__i.__h = (nh); __nn.__i.__l = (nl); \
|
|
__asm__ ("ediv %d,%n,%0" \
|
|
: "=d" (__rq.__ll) \
|
|
: "dI" (__nn.__ll), \
|
|
"dI" ((USItype)(d))); \
|
|
(r) = __rq.__i.__l; (q) = __rq.__i.__h; \
|
|
} while (0)
|
|
#if defined(__i960mx) /* what is the proper symbol to test??? */
|
|
#define rshift_rhlc(r, h, l, c) \
|
|
do { \
|
|
union {UDItype __ll; \
|
|
struct {USItype __l, __h; } __i; \
|
|
} __nn; \
|
|
__nn.__i.__h = (h); __nn.__i.__l = (l); \
|
|
__asm__ ("shre %2,%1,%0" \
|
|
: "=d" (r) : "dI" (__nn.__ll), "dI" (c)); \
|
|
}
|
|
#endif /* i960mx */
|
|
#endif /* i960 */
|
|
|
|
/***************************************
|
|
************** 68000 ****************
|
|
***************************************/
|
|
#if (defined(__mc68000__) || defined(__mc68020__) || defined(__NeXT__) || defined(mc68020)) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("add%.l %5,%1\n" \
|
|
"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\n" \
|
|
"subx%.l %3,%0" \
|
|
: "=d" ((USItype)(sh)), \
|
|
"=&d" ((USItype)(sl)) \
|
|
: "0" ((USItype)(ah)), \
|
|
"d" ((USItype)(bh)), \
|
|
"1" ((USItype)(al)), \
|
|
"g" ((USItype)(bl)))
|
|
#if (defined(__mc68020__) || defined(__NeXT__) || defined(mc68020))
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("mulu%.l %3,%1:%0" \
|
|
: "=d" ((USItype)(w0)), \
|
|
"=d" ((USItype)(w1)) \
|
|
: "%0" ((USItype)(u)), \
|
|
"dmi" ((USItype)(v)))
|
|
#define UMUL_TIME 45
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("divu%.l %4,%1:%0" \
|
|
: "=d" ((USItype)(q)), \
|
|
"=d" ((USItype)(r)) \
|
|
: "0" ((USItype)(n0)), \
|
|
"1" ((USItype)(n1)), \
|
|
"dmi" ((USItype)(d)))
|
|
#define UDIV_TIME 90
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("divs%.l %4,%1:%0" \
|
|
: "=d" ((USItype)(q)), \
|
|
"=d" ((USItype)(r)) \
|
|
: "0" ((USItype)(n0)), \
|
|
"1" ((USItype)(n1)), \
|
|
"dmi" ((USItype)(d)))
|
|
#else /* not mc68020 */
|
|
#define umul_ppmm(xh, xl, a, b) \
|
|
do { USItype __umul_tmp1, __umul_tmp2; \
|
|
__asm__ ("| Inlined umul_ppmm\n" \
|
|
"move%.l %5,%3\n" \
|
|
"move%.l %2,%0\n" \
|
|
"move%.w %3,%1\n" \
|
|
"swap %3\n" \
|
|
"swap %0\n" \
|
|
"mulu %2,%1\n" \
|
|
"mulu %3,%0\n" \
|
|
"mulu %2,%3\n" \
|
|
"swap %2\n" \
|
|
"mulu %5,%2\n" \
|
|
"add%.l %3,%2\n" \
|
|
"jcc 1f\n" \
|
|
"add%.l %#0x10000,%0\n" \
|
|
"1: move%.l %2,%3\n" \
|
|
"clr%.w %2\n" \
|
|
"swap %2\n" \
|
|
"swap %3\n" \
|
|
"clr%.w %3\n" \
|
|
"add%.l %3,%1\n" \
|
|
"addx%.l %2,%0\n" \
|
|
"| End inlined umul_ppmm" \
|
|
: "=&d" ((USItype)(xh)), "=&d" ((USItype)(xl)), \
|
|
"=d" (__umul_tmp1), "=&d" (__umul_tmp2) \
|
|
: "%2" ((USItype)(a)), "d" ((USItype)(b))); \
|
|
} while (0)
|
|
#define UMUL_TIME 100
|
|
#define UDIV_TIME 400
|
|
#endif /* not mc68020 */
|
|
#endif /* mc68000 */
|
|
|
|
/***************************************
|
|
************** 88000 ****************
|
|
***************************************/
|
|
#if defined(__m88000__) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addu.co %1,%r4,%r5\n" \
|
|
"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\n" \
|
|
"subu.ci %0,%r2,%r3" \
|
|
: "=r" ((USItype)(sh)), \
|
|
"=&r" ((USItype)(sl)) \
|
|
: "rJ" ((USItype)(ah)), \
|
|
"rJ" ((USItype)(bh)), \
|
|
"rJ" ((USItype)(al)), \
|
|
"rJ" ((USItype)(bl)))
|
|
#if defined(__m88110__)
|
|
#define umul_ppmm(wh, wl, u, v) \
|
|
do { \
|
|
union {UDItype __ll; \
|
|
struct {USItype __h, __l; } __i; \
|
|
} __x; \
|
|
__asm__ ("mulu.d %0,%1,%2" : "=r" (__x.__ll) : "r" (u), "r" (v)); \
|
|
(wh) = __x.__i.__h; \
|
|
(wl) = __x.__i.__l; \
|
|
} while (0)
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
({union {UDItype __ll; \
|
|
struct {USItype __h, __l; } __i; \
|
|
} __x, __q; \
|
|
__x.__i.__h = (n1); __x.__i.__l = (n0); \
|
|
__asm__ ("divu.d %0,%1,%2" \
|
|
: "=r" (__q.__ll) : "r" (__x.__ll), "r" (d)); \
|
|
(r) = (n0) - __q.__l * (d); (q) = __q.__l; })
|
|
#define UMUL_TIME 5
|
|
#define UDIV_TIME 25
|
|
#else
|
|
#define UMUL_TIME 17
|
|
#define UDIV_TIME 150
|
|
#endif /* __m88110__ */
|
|
#endif /* __m88000__ */
|
|
|
|
/***************************************
|
|
************** MIPS *****************
|
|
***************************************/
|
|
#if defined(__mips__) && W_TYPE_SIZE == 32
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
do { \
|
|
UDItype __ll = (UDItype)(u) * (v); \
|
|
w1 = __ll >> 32; \
|
|
w0 = __ll; \
|
|
} while (0)
|
|
#define UMUL_TIME 10
|
|
#define UDIV_TIME 100
|
|
#endif /* __mips__ */
|
|
|
|
/***************************************
|
|
************** MIPS/64 **************
|
|
***************************************/
|
|
#if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
|
|
#if defined(__mips_isa_rev) && __mips_isa_rev >= 6
|
|
/*
|
|
* GCC ends up emitting a __multi3 intrinsic call for MIPS64r6 with the plain C
|
|
* code below, so we special case MIPS64r6 until the compiler can do better.
|
|
*/
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
do { \
|
|
__asm__ ("dmulu %0,%1,%2" \
|
|
: "=d" ((UDItype)(w0)) \
|
|
: "d" ((UDItype)(u)), \
|
|
"d" ((UDItype)(v))); \
|
|
__asm__ ("dmuhu %0,%1,%2" \
|
|
: "=d" ((UDItype)(w1)) \
|
|
: "d" ((UDItype)(u)), \
|
|
"d" ((UDItype)(v))); \
|
|
} while (0)
|
|
#else
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
do { \
|
|
typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
|
|
__ll_UTItype __ll = (__ll_UTItype)(u) * (v); \
|
|
w1 = __ll >> 64; \
|
|
w0 = __ll; \
|
|
} while (0)
|
|
#endif
|
|
#define UMUL_TIME 20
|
|
#define UDIV_TIME 140
|
|
#endif /* __mips__ */
|
|
|
|
/***************************************
|
|
************** 32000 ****************
|
|
***************************************/
|
|
#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; })
|
|
#endif /* __ns32000__ */
|
|
|
|
/***************************************
|
|
************** PPC ******************
|
|
***************************************/
|
|
#if (defined(_ARCH_PPC) || 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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (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" (sh), \
|
|
"=&r" (sl) \
|
|
: "r" ((USItype)(ah)), \
|
|
"r" ((USItype)(bh)), \
|
|
"rI" ((USItype)(al)), \
|
|
"r" ((USItype)(bl))); \
|
|
} while (0)
|
|
#if defined(_ARCH_PPC)
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
do { \
|
|
USItype __m0 = (m0), __m1 = (m1); \
|
|
__asm__ ("mulhwu %0,%1,%2" \
|
|
: "=r" (ph) \
|
|
: "%r" (__m0), \
|
|
"r" (__m1)); \
|
|
(pl) = __m0 * __m1; \
|
|
} while (0)
|
|
#define UMUL_TIME 15
|
|
#define smul_ppmm(ph, pl, m0, m1) \
|
|
do { \
|
|
SItype __m0 = (m0), __m1 = (m1); \
|
|
__asm__ ("mulhw %0,%1,%2" \
|
|
: "=r" ((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. */
|
|
|
|
/***************************************
|
|
************** PYR ******************
|
|
***************************************/
|
|
#if defined(__pyr__) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addw %5,%1\n" \
|
|
"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\n" \
|
|
"subwb %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" \
|
|
"uemul %2,%0" \
|
|
: "=&r" (__xx.__ll) \
|
|
: "g" ((USItype) (u)), \
|
|
"g" ((USItype)(v))); \
|
|
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l; })
|
|
#endif /* __pyr__ */
|
|
|
|
/***************************************
|
|
************** RT/ROMP **************
|
|
***************************************/
|
|
#if defined(__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("a %1,%5\n" \
|
|
"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\n" \
|
|
"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\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
|
|
#endif /* RT/ROMP */
|
|
|
|
/***************************************
|
|
************** SH2 ******************
|
|
***************************************/
|
|
#if (defined(__sh2__) || defined(__sh3__) || defined(__SH4__)) \
|
|
&& W_TYPE_SIZE == 32
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ( \
|
|
"dmulu.l %2,%3\n" \
|
|
"sts macl,%1\n" \
|
|
"sts mach,%0" \
|
|
: "=r" ((USItype)(w1)), \
|
|
"=r" ((USItype)(w0)) \
|
|
: "r" ((USItype)(u)), \
|
|
"r" ((USItype)(v)) \
|
|
: "macl", "mach")
|
|
#define UMUL_TIME 5
|
|
#endif
|
|
|
|
/***************************************
|
|
************** SPARC ****************
|
|
***************************************/
|
|
#if defined(__sparc__) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addcc %r4,%5,%1\n" \
|
|
"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\n" \
|
|
"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
|
|
#ifndef SUPERSPARC /* SuperSPARC's udiv only handles 53 bit dividends */
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
do { \
|
|
USItype __q; \
|
|
__asm__ ("mov %1,%%y;nop;nop;nop;udiv %2,%3,%0" \
|
|
: "=r" ((USItype)(__q)) \
|
|
: "r" ((USItype)(n1)), \
|
|
"r" ((USItype)(n0)), \
|
|
"r" ((USItype)(d))); \
|
|
(r) = (n0) - __q * (d); \
|
|
(q) = __q; \
|
|
} while (0)
|
|
#define UDIV_TIME 25
|
|
#endif /* SUPERSPARC */
|
|
#else /* ! __sparc_v8__ */
|
|
#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\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
|
|
#endif /* __sparclite__ */
|
|
#endif /* __sparc_v8__ */
|
|
/* Default to sparc v7 versions of umul_ppmm and udiv_qrnnd. */
|
|
#ifndef umul_ppmm
|
|
#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,%%g2 ! Don't move this insn\n" \
|
|
"and %2,%%g2,%%g2 ! 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,%%g2,%0\n" \
|
|
"rd %%y,%1" \
|
|
: "=r" ((USItype)(w1)), \
|
|
"=r" ((USItype)(w0)) \
|
|
: "%rI" ((USItype)(u)), \
|
|
"r" ((USItype)(v)) \
|
|
: "%g1", "%g2" __AND_CLOBBER_CC)
|
|
#define UMUL_TIME 39 /* 39 instructions */
|
|
/* It's quite necessary to add this much assembler for the sparc.
|
|
The default udiv_qrnnd (in C) is more than 10 times slower! */
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("! Inlined udiv_qrnnd\n\t" \
|
|
"mov 32,%%g1\n\t" \
|
|
"subcc %1,%2,%%g0\n\t" \
|
|
"1: bcs 5f\n\t" \
|
|
"addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
|
|
"sub %1,%2,%1 ! this kills msb of n\n\t" \
|
|
"addx %1,%1,%1 ! so this can't give carry\n\t" \
|
|
"subcc %%g1,1,%%g1\n\t" \
|
|
"2: bne 1b\n\t" \
|
|
"subcc %1,%2,%%g0\n\t" \
|
|
"bcs 3f\n\t" \
|
|
"addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
|
|
"b 3f\n\t" \
|
|
"sub %1,%2,%1 ! this kills msb of n\n\t" \
|
|
"4: sub %1,%2,%1\n\t" \
|
|
"5: addxcc %1,%1,%1\n\t" \
|
|
"bcc 2b\n\t" \
|
|
"subcc %%g1,1,%%g1\n\t" \
|
|
"! Got carry from n. Subtract next step to cancel this carry.\n\t" \
|
|
"bne 4b\n\t" \
|
|
"addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n\t" \
|
|
"sub %1,%2,%1\n\t" \
|
|
"3: xnor %0,0,%0\n\t" \
|
|
"! End of inline udiv_qrnnd\n" \
|
|
: "=&r" ((USItype)(q)), \
|
|
"=&r" ((USItype)(r)) \
|
|
: "r" ((USItype)(d)), \
|
|
"1" ((USItype)(n1)), \
|
|
"0" ((USItype)(n0)) : "%g1", "cc")
|
|
#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
|
|
#endif
|
|
#endif /* __sparc__ */
|
|
|
|
/***************************************
|
|
************** VAX ******************
|
|
***************************************/
|
|
#if defined(__vax__) && W_TYPE_SIZE == 32
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addl2 %5,%1\n" \
|
|
"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\n" \
|
|
"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" (__xx.__ll), "g" (d)); \
|
|
} while (0)
|
|
#endif /* __vax__ */
|
|
|
|
/***************************************
|
|
************** Z8000 ****************
|
|
***************************************/
|
|
#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__ */
|
|
|
|
/***************************************
|
|
*********** Generic Versions ********
|
|
***************************************/
|
|
#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; \
|
|
UWtype __u = (u), __v = (v); \
|
|
\
|
|
__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
|
|
|
|
#if !defined(umul_ppmm)
|
|
#define smul_ppmm(w1, w0, u, v) \
|
|
do { \
|
|
UWtype __w1; \
|
|
UWtype __m0 = (u), __m1 = (v); \
|
|
umul_ppmm(__w1, w0, __m0, __m1); \
|
|
(w1) = __w1 - (-(__m0 >> (W_TYPE_SIZE - 1)) & __m1) \
|
|
- (-(__m1 >> (W_TYPE_SIZE - 1)) & __m0); \
|
|
} 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) = __MPN(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
|
|
|
|
#ifndef UDIV_NEEDS_NORMALIZATION
|
|
#define UDIV_NEEDS_NORMALIZATION 0
|
|
#endif
|