1028 lines
33 KiB
C
1028 lines
33 KiB
C
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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Copyright (C) 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef LONG_TYPE_SIZE
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#ifdef BITS_PER_LONGINT
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#define LONG_TYPE_SIZE BITS_PER_LONGINT
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#else
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#define LONG_TYPE_SIZE 32
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#endif
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#endif
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#define __BITS4 (LONG_TYPE_SIZE / 4)
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#define __ll_B (1L << (LONG_TYPE_SIZE / 2))
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#define __ll_lowpart(t) ((unsigned long int) (t) % __ll_B)
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#define __ll_highpart(t) ((unsigned long int) (t) / __ll_B)
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/* Define auxiliary asm macros.
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1) umul_ppmm(high_prod, low_prod, multipler, multiplicand)
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multiplies two unsigned long integers MULTIPLER and MULTIPLICAND,
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and generates a two unsigned word product in HIGH_PROD and
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LOW_PROD.
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2) __umulsidi3(a,b) multiplies two unsigned long integers A and B,
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and returns a long long 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 two-word unsigned integer, composed by the
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integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and
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places the quotient in QUOTIENT and the remainder in REMAINDER.
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HIGH_NUMERATOR must be less than DENOMINATOR for correct operation.
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If, in addition, the most significant bit of DENOMINATOR must be 1,
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then the pre-processor symbol 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
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quotient is rounded towards 0.
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5) count_leading_zeros(count, x) counts the number of zero-bits from
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the msb to the first non-zero bit. This is the number of steps X
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needs to be shifted left to set the msb. Undefined for X == 0.
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6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
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high_addend_2, low_addend_2) adds two two-word unsigned integers,
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composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and
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LOW_ADDEND_2 respectively. The result is placed in HIGH_SUM and
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LOW_SUM. Overflow (i.e. carry out) is not stored anywhere, and is
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lost.
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7) sub_ddmmss(high_difference, low_difference, high_minuend,
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low_minuend, high_subtrahend, low_subtrahend) subtracts two
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two-word unsigned integers, composed by HIGH_MINUEND_1 and
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LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2
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respectively. The result is placed in HIGH_DIFFERENCE and
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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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#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__)
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add %1,%4,%5
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addc %0,%2,%3" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "%r" ((unsigned long int)(ah)), \
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"rI" ((unsigned long int)(bh)), \
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"%r" ((unsigned long int)(al)), \
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"rI" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub %1,%4,%5
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subc %0,%2,%3" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "r" ((unsigned long int)(ah)), \
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"rI" ((unsigned long int)(bh)), \
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"r" ((unsigned long int)(al)), \
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"rI" ((unsigned long int)(bl)))
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#define umul_ppmm(xh, xl, m0, m1) \
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do { \
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unsigned long int __m0 = (m0), __m1 = (m1); \
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__asm__ ("multiplu %0,%1,%2" \
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: "=r" ((unsigned long int)(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" ((unsigned long int)(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" ((unsigned long int)(q)), \
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"=q" ((unsigned long int)(r)) \
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: "1" ((unsigned long int)(n1)), \
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"r" ((unsigned long int)(n0)), \
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"r" ((unsigned long int)(d)))
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#define count_leading_zeros(count, x) \
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__asm__ ("clz %0,%1" \
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: "=r" ((unsigned long int)(count)) \
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: "r" ((unsigned long int)(x)))
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#endif /* __a29k__ */
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#if defined (__alpha__)
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#define umul_ppmm(ph, pl, m0, m1) \
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do { \
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unsigned long int __m0 = (m0), __m1 = (m1); \
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__asm__ ("umulh %r1,%2,%0" \
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: "=r" ((unsigned long int) ph) \
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: "%rJ" (__m0), \
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"rI" (__m1)); \
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(pl) = (unsigned long int) (__m0) * (unsigned long int) (__m1); \
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} while (0)
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#define UMUL_TIME 46
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#define UDIV_TIME 500
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#endif
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#if defined (__arm__)
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("adds %1,%4,%5
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adc %0,%2,%3" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "%r" ((unsigned long int)(ah)), \
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"rI" ((unsigned long int)(bh)), \
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"%r" ((unsigned long int)(al)), \
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"rI" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("subs %1,%4,%5
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sbc %0,%2,%3" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "r" ((unsigned long int)(ah)), \
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"rI" ((unsigned long int)(bh)), \
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"r" ((unsigned long int)(al)), \
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"rI" ((unsigned long int)(bl)))
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#endif /* __arm__ */
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#if defined (__gmicro__)
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add.w %5,%1
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addx %3,%0" \
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: "=g" ((unsigned long int)(sh)), \
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"=&g" ((unsigned long int)(sl)) \
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: "%0" ((unsigned long int)(ah)), \
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"g" ((unsigned long int)(bh)), \
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"%1" ((unsigned long int)(al)), \
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"g" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub.w %5,%1
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subx %3,%0" \
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: "=g" ((unsigned long int)(sh)), \
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"=&g" ((unsigned long int)(sl)) \
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: "0" ((unsigned long int)(ah)), \
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"g" ((unsigned long int)(bh)), \
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"1" ((unsigned long int)(al)), \
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"g" ((unsigned long int)(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" ((unsigned long int)(ph)), \
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"=r" ((unsigned long int)(pl)) \
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: "%0" ((unsigned long int)(m0)), \
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"g" ((unsigned long int)(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" ((unsigned long int)(q)), \
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"=r" ((unsigned long int)(r)) \
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: "1" ((unsigned long int)(nh)), \
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"0" ((unsigned long int)(nl)), \
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"g" ((unsigned long int)(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" ((unsigned long int)(x)), \
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"0" (0UL))
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#endif
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#if defined (__hppa)
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add %4,%5,%1
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addc %2,%3,%0" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "%rM" ((unsigned long int)(ah)), \
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"rM" ((unsigned long int)(bh)), \
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"%rM" ((unsigned long int)(al)), \
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"rM" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub %4,%5,%1
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subb %2,%3,%0" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "rM" ((unsigned long int)(ah)), \
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"rM" ((unsigned long int)(bh)), \
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"rM" ((unsigned long int)(al)), \
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"rM" ((unsigned long int)(bl)))
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#if defined (_PA_RISC1_1)
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#define umul_ppmm(wh, wl, u, v) \
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do { \
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union {long long int __ll; \
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struct {unsigned long int __h, __l;} __i; \
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} __xx; \
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__asm__ ("xmpyu %1,%2,%0" \
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: "=x" (__xx.__ll) \
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: "x" ((unsigned long int)(u)), \
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"x" ((unsigned long int)(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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#define count_leading_zeros(count, x) \
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do { \
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unsigned long int __tmp; \
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__asm__ ( \
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"ldi 1,%0
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extru,= %1,15,16,%%r0 ; Bits 31..16 zero?
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extru,tr %1,15,16,%1 ; No. Shift down, skip add.
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ldo 16(%0),%0 ; Yes. Perform add.
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extru,= %1,23,8,%%r0 ; Bits 15..8 zero?
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extru,tr %1,23,8,%1 ; No. Shift down, skip add.
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ldo 8(%0),%0 ; Yes. Perform add.
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extru,= %1,27,4,%%r0 ; Bits 7..4 zero?
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extru,tr %1,27,4,%1 ; No. Shift down, skip add.
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ldo 4(%0),%0 ; Yes. Perform add.
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extru,= %1,29,2,%%r0 ; Bits 3..2 zero?
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extru,tr %1,29,2,%1 ; No. Shift down, skip add.
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ldo 2(%0),%0 ; Yes. Perform add.
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extru %1,30,1,%1 ; Extract bit 1.
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sub %0,%1,%0 ; Subtract it.
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" : "=r" (count), "=r" (__tmp) : "1" (x)); \
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} while (0)
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#endif
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#if defined (__i386__) || defined (__i486__)
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("addl %5,%1
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adcl %3,%0" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "%0" ((unsigned long int)(ah)), \
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"g" ((unsigned long int)(bh)), \
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"%1" ((unsigned long int)(al)), \
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"g" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("subl %5,%1
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sbbl %3,%0" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "0" ((unsigned long int)(ah)), \
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"g" ((unsigned long int)(bh)), \
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"1" ((unsigned long int)(al)), \
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"g" ((unsigned long int)(bl)))
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("mull %3" \
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: "=a" ((unsigned long int)(w0)), \
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"=d" ((unsigned long int)(w1)) \
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: "%0" ((unsigned long int)(u)), \
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"rm" ((unsigned long int)(v)))
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#define udiv_qrnnd(q, r, n1, n0, d) \
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__asm__ ("divl %4" \
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: "=a" ((unsigned long int)(q)), \
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"=d" ((unsigned long int)(r)) \
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: "0" ((unsigned long int)(n0)), \
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"1" ((unsigned long int)(n1)), \
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"rm" ((unsigned long int)(d)))
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#define count_leading_zeros(count, x) \
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do { \
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unsigned long int __cbtmp; \
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__asm__ ("bsrl %1,%0" \
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: "=r" (__cbtmp) : "rm" ((unsigned long int)(x))); \
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(count) = __cbtmp ^ 31; \
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} while (0)
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#define UMUL_TIME 40
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#define UDIV_TIME 40
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#endif /* 80x86 */
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#if defined (__i860__)
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#if 0
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/* Make sure these patterns really improve the code before
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switching them on. */
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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do { \
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union \
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{ \
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long long int ll; \
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struct {unsigned long int l, h;} i; \
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} __a, __b, __s; \
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__a.i.l = (al); __a.i.h = (ah); \
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__b.i.l = (bl); __b.i.h = (bh); \
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__asm__ ("fiadd.dd %1,%2,%0" \
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: "=f" (__s.ll) \
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: "%f" (__a.ll), "f" (__b.ll)); \
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(sh) = __s.i.h; (sl) = __s.i.l; \
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} while (0)
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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do { \
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union \
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{ \
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long long int ll; \
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struct {unsigned long int l, h;} i; \
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} __a, __b, __s; \
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__a.i.l = (al); __a.i.h = (ah); \
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__b.i.l = (bl); __b.i.h = (bh); \
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__asm__ ("fisub.dd %1,%2,%0" \
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: "=f" (__s.ll) \
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: "%f" (__a.ll), "f" (__b.ll)); \
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(sh) = __s.i.h; (sl) = __s.i.l; \
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} while (0)
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#endif
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#endif /* __i860__ */
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#if defined (__i960__)
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#define umul_ppmm(w1, w0, u, v) \
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({union {long long int __ll; \
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struct {unsigned long int __l, __h;} __i; \
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} __xx; \
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__asm__ ("emul %2,%1,%0" \
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: "=d" (__xx.__ll) \
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: "%dI" ((unsigned long int)(u)), \
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"dI" ((unsigned long int)(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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({long long int __w; \
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__asm__ ("emul %2,%1,%0" \
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: "=d" (__w) \
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: "%dI" ((unsigned long int)(u)), \
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"dI" ((unsigned long int)(v))); \
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__w; })
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#endif /* __i960__ */
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#if defined (___IBMR2__) /* IBM RS6000 */
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("a%I5 %1,%4,%5
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ae %0,%2,%3" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "%r" ((unsigned long int)(ah)), \
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"r" ((unsigned long int)(bh)), \
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"%r" ((unsigned long int)(al)), \
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"rI" ((unsigned long int)(bl)))
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sf%I4 %1,%5,%4
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sfe %0,%3,%2" \
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: "=r" ((unsigned long int)(sh)), \
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"=&r" ((unsigned long int)(sl)) \
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: "r" ((unsigned long int)(ah)), \
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"r" ((unsigned long int)(bh)), \
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"rI" ((unsigned long int)(al)), \
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"r" ((unsigned long int)(bl)))
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#define umul_ppmm(xh, xl, m0, m1) \
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do { \
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unsigned long int __m0 = (m0), __m1 = (m1); \
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__asm__ ("mul %0,%2,%3" \
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: "=r" ((unsigned long int)(xh)), \
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"=q" ((unsigned long int)(xl)) \
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: "r" (__m0), \
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"r" (__m1)); \
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(xh) += ((((signed long int) __m0 >> 31) & __m1) \
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+ (((signed long int) __m1 >> 31) & __m0)); \
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} while (0)
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#define smul_ppmm(xh, xl, m0, m1) \
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__asm__ ("mul %0,%2,%3" \
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: "=r" ((unsigned long int)(xh)), \
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"=q" ((unsigned long int)(xl)) \
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: "r" (m0), \
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"r" (m1))
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#define UMUL_TIME 8
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#define sdiv_qrnnd(q, r, nh, nl, d) \
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__asm__ ("div %0,%2,%4" \
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: "=r" (q), "=q" (r) \
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: "r" (nh), "1" (nl), "r" (d))
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#define UDIV_TIME 100
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#define count_leading_zeros(count, x) \
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__asm__ ("cntlz %0,%1" \
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: "=r" ((unsigned long int)(count)) \
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: "r" ((unsigned long int)(x)))
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#endif /* ___IBMR2__ */
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#if defined (__mc68000__)
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("add%.l %5,%1
|
|
addx%.l %3,%0" \
|
|
: "=d" ((unsigned long int)(sh)), \
|
|
"=&d" ((unsigned long int)(sl)) \
|
|
: "%0" ((unsigned long int)(ah)), \
|
|
"d" ((unsigned long int)(bh)), \
|
|
"%1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("sub%.l %5,%1
|
|
subx%.l %3,%0" \
|
|
: "=d" ((unsigned long int)(sh)), \
|
|
"=&d" ((unsigned long int)(sl)) \
|
|
: "0" ((unsigned long int)(ah)), \
|
|
"d" ((unsigned long int)(bh)), \
|
|
"1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
#if defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("mulu%.l %3,%1:%0" \
|
|
: "=d" ((unsigned long int)(w0)), \
|
|
"=d" ((unsigned long int)(w1)) \
|
|
: "%0" ((unsigned long int)(u)), \
|
|
"dmi" ((unsigned long int)(v)))
|
|
#define UMUL_TIME 45
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("divu%.l %4,%1:%0" \
|
|
: "=d" ((unsigned long int)(q)), \
|
|
"=d" ((unsigned long int)(r)) \
|
|
: "0" ((unsigned long int)(n0)), \
|
|
"1" ((unsigned long int)(n1)), \
|
|
"dmi" ((unsigned long int)(d)))
|
|
#define UDIV_TIME 90
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("divs%.l %4,%1:%0" \
|
|
: "=d" ((unsigned long int)(q)), \
|
|
"=d" ((unsigned long int)(r)) \
|
|
: "0" ((unsigned long int)(n0)), \
|
|
"1" ((unsigned long int)(n1)), \
|
|
"dmi" ((unsigned long int)(d)))
|
|
#define count_leading_zeros(count, x) \
|
|
__asm__ ("bfffo %1{%b2:%b2},%0" \
|
|
: "=d" ((unsigned long int)(count)) \
|
|
: "od" ((unsigned long int)(x)), "n" (0))
|
|
#else /* not mc68020 */
|
|
/* This ought to be improved by relying on reload to move inputs and
|
|
outputs to their positions. */
|
|
#define umul_ppmm(xh, xl, a, b) \
|
|
__asm__ ("| Inlined umul_ppmm
|
|
movel %2,d0
|
|
movel %3,d1
|
|
movel d0,d2
|
|
swap d0
|
|
movel d1,d3
|
|
swap d1
|
|
movew d2,d4
|
|
mulu d3,d4
|
|
mulu d1,d2
|
|
mulu d0,d3
|
|
mulu d0,d1
|
|
movel d4,d0
|
|
eorw d0,d0
|
|
swap d0
|
|
addl d0,d2
|
|
addl d3,d2
|
|
jcc 1f
|
|
addl #65536,d1
|
|
1: swap d2
|
|
moveq #0,d0
|
|
movew d2,d0
|
|
movew d4,d2
|
|
movel d2,%1
|
|
addl d1,d0
|
|
movel d0,%0" \
|
|
: "=g" ((unsigned long int)(xh)), \
|
|
"=g" ((unsigned long int)(xl)) \
|
|
: "g" ((unsigned long int)(a)), \
|
|
"g" ((unsigned long int)(b)) \
|
|
: "d0", "d1", "d2", "d3", "d4")
|
|
#define UMUL_TIME 100
|
|
#define UDIV_TIME 400
|
|
#endif /* not mc68020 */
|
|
#endif /* mc68000 */
|
|
|
|
#if defined (__m88000__)
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addu.co %1,%r4,%r5
|
|
addu.ci %0,%r2,%r3" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "%rJ" ((unsigned long int)(ah)), \
|
|
"rJ" ((unsigned long int)(bh)), \
|
|
"%rJ" ((unsigned long int)(al)), \
|
|
"rJ" ((unsigned long int)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subu.co %1,%r4,%r5
|
|
subu.ci %0,%r2,%r3" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "rJ" ((unsigned long int)(ah)), \
|
|
"rJ" ((unsigned long int)(bh)), \
|
|
"rJ" ((unsigned long int)(al)), \
|
|
"rJ" ((unsigned long int)(bl)))
|
|
#define UMUL_TIME 17
|
|
#define UDIV_TIME 150
|
|
#define count_leading_zeros(count, x) \
|
|
do { \
|
|
unsigned long int __cbtmp; \
|
|
__asm__ ("ff1 %0,%1" \
|
|
: "=r" (__cbtmp) \
|
|
: "r" ((unsigned long int)(x))); \
|
|
(count) = __cbtmp ^ 31; \
|
|
} while (0)
|
|
#if defined (__mc88110__)
|
|
#define umul_ppmm(wh, wl, u, v) \
|
|
do { \
|
|
union {long long int __ll; \
|
|
struct {unsigned long int __h, __l;} __i; \
|
|
} __xx; \
|
|
__asm__ ("mulu.d %0,%1,%2" \
|
|
: "=r" (__xx.__ll) \
|
|
: "r" ((unsigned long int)(u)), \
|
|
"r" ((unsigned long int)(v))); \
|
|
(wh) = __xx.__i.__h; \
|
|
(wl) = __xx.__i.__l; \
|
|
} while (0)
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("or r10,%2,0
|
|
or r11,%3,0
|
|
divu.d r10,r10,%4
|
|
mulu %1,%4,r11
|
|
subu %1,%3,%1
|
|
or %0,r11,0" \
|
|
: "=r" (q), \
|
|
"=&r" (r) \
|
|
: "r" (n1), \
|
|
"r" (n0), \
|
|
"r" (d) \
|
|
: "r10", "r11")
|
|
#endif
|
|
#endif /* __m88000__ */
|
|
|
|
#if defined (__mips__)
|
|
/* The LO and HI registers are fixed in gcc/mips.h, for some reason. */
|
|
#if 0 && __GNUC__ >= 2
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("multu %2,%3" \
|
|
: "=l" ((unsigned long int)(w0)), \
|
|
"=h" ((unsigned long int)(w1)) \
|
|
: "d" ((unsigned long int)(u)), \
|
|
"d" ((unsigned long int)(v)))
|
|
#else
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("multu %2,%3
|
|
mflo %0
|
|
mfhi %1" \
|
|
: "=d" ((unsigned long int)(w0)), \
|
|
"=d" ((unsigned long int)(w1)) \
|
|
: "d" ((unsigned long int)(u)), \
|
|
"d" ((unsigned long int)(v)))
|
|
#endif
|
|
#define UMUL_TIME 10
|
|
#define UDIV_TIME 100
|
|
#endif /* __mips__ */
|
|
|
|
#if defined (__ns32000__)
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
({union {long long int __ll; \
|
|
struct {unsigned long int __l, __h;} __i; \
|
|
} __xx; \
|
|
__asm__ ("meid %2,%0" \
|
|
: "=g" (__xx.__ll) \
|
|
: "%0" ((unsigned long int)(u)), \
|
|
"g" ((unsigned long int)(v))); \
|
|
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
|
|
#define __umulsidi3(u, v) \
|
|
({long long int __w; \
|
|
__asm__ ("meid %2,%0" \
|
|
: "=g" (__w) \
|
|
: "%0" ((unsigned long int)(u)), \
|
|
"g" ((unsigned long int)(v))); \
|
|
__w; })
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("movd %2,r0
|
|
movd %3,r1
|
|
deid %4,r0
|
|
movd r1,%0
|
|
movd r0,%1" \
|
|
: "=g" ((unsigned long int)(q)), \
|
|
"=g" ((unsigned long int)(r)) \
|
|
: "g" ((unsigned long int)(n0)), \
|
|
"g" ((unsigned long int)(n1)), \
|
|
"g" ((unsigned long int)(d)) \
|
|
: "r0", "r1")
|
|
#endif /* __ns32000__ */
|
|
|
|
#if defined (__pyr__)
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addw %5,%1
|
|
addwc %3,%0" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "%0" ((unsigned long int)(ah)), \
|
|
"g" ((unsigned long int)(bh)), \
|
|
"%1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subw %5,%1
|
|
subwb %3,%0" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "0" ((unsigned long int)(ah)), \
|
|
"g" ((unsigned long int)(bh)), \
|
|
"1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
/* This insn doesn't work on ancient pyramids. */
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
({union {long long int __ll; \
|
|
struct {unsigned long int __h, __l;} __i; \
|
|
} __xx; \
|
|
__xx.__i.__l = u; \
|
|
__asm__ ("uemul %3,%0" \
|
|
: "=r" (__xx.__i.__h), \
|
|
"=r" (__xx.__i.__l) \
|
|
: "1" (__xx.__i.__l), \
|
|
"g" (v)); \
|
|
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
|
|
#endif /* __pyr__ */
|
|
|
|
#if defined (__ibm032__) /* RT/ROMP */
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("a %1,%5
|
|
ae %0,%3" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "%0" ((unsigned long int)(ah)), \
|
|
"r" ((unsigned long int)(bh)), \
|
|
"%1" ((unsigned long int)(al)), \
|
|
"r" ((unsigned long int)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("s %1,%5
|
|
se %0,%3" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "0" ((unsigned long int)(ah)), \
|
|
"r" ((unsigned long int)(bh)), \
|
|
"1" ((unsigned long int)(al)), \
|
|
"r" ((unsigned long int)(bl)))
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
do { \
|
|
unsigned long int __m0 = (m0), __m1 = (m1); \
|
|
__asm__ ( \
|
|
"s r2,r2
|
|
mts r10,%2
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
m r2,%3
|
|
cas %0,r2,r0
|
|
mfs r10,%1" \
|
|
: "=r" ((unsigned long int)(ph)), \
|
|
"=r" ((unsigned long int)(pl)) \
|
|
: "%r" (__m0), \
|
|
"r" (__m1) \
|
|
: "r2"); \
|
|
(ph) += ((((signed long int) __m0 >> 31) & __m1) \
|
|
+ (((signed long int) __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" ((unsigned long int)(count)) \
|
|
: "r" ((unsigned long int)(x) >> 16)); \
|
|
else \
|
|
{ \
|
|
__asm__ ("clz %0,%1" \
|
|
: "=r" ((unsigned long int)(count)) \
|
|
: "r" ((unsigned long int)(x))); \
|
|
(count) += 16; \
|
|
} \
|
|
} while (0)
|
|
#endif
|
|
|
|
#if defined (__sparc__)
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addcc %4,%5,%1
|
|
addx %2,%3,%0" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "%r" ((unsigned long int)(ah)), \
|
|
"rI" ((unsigned long int)(bh)), \
|
|
"%r" ((unsigned long int)(al)), \
|
|
"rI" ((unsigned long int)(bl)) \
|
|
__CLOBBER_CC)
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subcc %4,%5,%1
|
|
subx %2,%3,%0" \
|
|
: "=r" ((unsigned long int)(sh)), \
|
|
"=&r" ((unsigned long int)(sl)) \
|
|
: "r" ((unsigned long int)(ah)), \
|
|
"rI" ((unsigned long int)(bh)), \
|
|
"r" ((unsigned long int)(al)), \
|
|
"rI" ((unsigned long int)(bl)) \
|
|
__CLOBBER_CC)
|
|
#if defined (__sparc_v8__)
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("umul %2,%3,%1;rd %%y,%0" \
|
|
: "=r" ((unsigned long int)(w1)), \
|
|
"=r" ((unsigned long int)(w0)) \
|
|
: "r" ((unsigned long int)(u)), \
|
|
"r" ((unsigned long int)(v)))
|
|
/* We might want to leave this undefined for `SuperSPARC (tm)' since
|
|
its implementation is crippled and often traps. */
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
|
|
: "=&r" ((unsigned long int)(q)), \
|
|
"=&r" ((unsigned long int)(r)) \
|
|
: "r" ((unsigned long int)(n1)), \
|
|
"r" ((unsigned long int)(n0)), \
|
|
"r" ((unsigned long int)(d)))
|
|
#define UMUL_TIME 6
|
|
#define UDIV_TIME 25
|
|
#else
|
|
/* SPARC without integer multiplication and divide instructions.
|
|
(i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("! Inlined umul_ppmm
|
|
wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr
|
|
sra %3,31,%%g2 ! Don't move this insn
|
|
and %2,%%g2,%%g2 ! Don't move this insn
|
|
andcc %%g0,0,%%g1 ! Don't move this insn
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,%3,%%g1
|
|
mulscc %%g1,0,%%g1
|
|
add %%g1,%%g2,%0
|
|
rd %%y,%1" \
|
|
: "=r" ((unsigned long int)(w1)), \
|
|
"=r" ((unsigned long int)(w0)) \
|
|
: "%rI" ((unsigned long int)(u)), \
|
|
"r" ((unsigned long int)(v)) \
|
|
: "%g1", "%g2" __AND_CLOBBER_CC)
|
|
#define UMUL_TIME 39 /* 39 instructions */
|
|
/* It's quite necessary to add this much assembler for the sparc.
|
|
The default udiv_qrnnd (in C) is more than 10 times slower! */
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
__asm__ ("! Inlined udiv_qrnnd
|
|
mov 32,%%g1
|
|
subcc %1,%2,%%g0
|
|
1: bcs 5f
|
|
addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb
|
|
sub %1,%2,%1 ! this kills msb of n
|
|
addx %1,%1,%1 ! so this can't give carry
|
|
subcc %%g1,1,%%g1
|
|
2: bne 1b
|
|
subcc %1,%2,%%g0
|
|
bcs 3f
|
|
addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb
|
|
b 3f
|
|
sub %1,%2,%1 ! this kills msb of n
|
|
4: sub %1,%2,%1
|
|
5: addxcc %1,%1,%1
|
|
bcc 2b
|
|
subcc %%g1,1,%%g1
|
|
! Got carry from n. Subtract next step to cancel this carry.
|
|
bne 4b
|
|
addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb
|
|
sub %1,%2,%1
|
|
3: xnor %0,0,%0
|
|
! End of inline udiv_qrnnd" \
|
|
: "=&r" ((unsigned long int)(q)), \
|
|
"=&r" ((unsigned long int)(r)) \
|
|
: "r" ((unsigned long int)(d)), \
|
|
"1" ((unsigned long int)(n1)), \
|
|
"0" ((unsigned long int)(n0)) : "%g1" __AND_CLOBBER_CC)
|
|
#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
|
|
#endif /* __sparc8__ */
|
|
#endif /* __sparc__ */
|
|
|
|
#if defined (__vax__)
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("addl2 %5,%1
|
|
adwc %3,%0" \
|
|
: "=g" ((unsigned long int)(sh)), \
|
|
"=&g" ((unsigned long int)(sl)) \
|
|
: "%0" ((unsigned long int)(ah)), \
|
|
"g" ((unsigned long int)(bh)), \
|
|
"%1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subl2 %5,%1
|
|
sbwc %3,%0" \
|
|
: "=g" ((unsigned long int)(sh)), \
|
|
"=&g" ((unsigned long int)(sl)) \
|
|
: "0" ((unsigned long int)(ah)), \
|
|
"g" ((unsigned long int)(bh)), \
|
|
"1" ((unsigned long int)(al)), \
|
|
"g" ((unsigned long int)(bl)))
|
|
#define umul_ppmm(xh, xl, m0, m1) \
|
|
do { \
|
|
union {long long int __ll; \
|
|
struct {unsigned long int __l, __h;} __i; \
|
|
} __xx; \
|
|
unsigned long int __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) += ((((signed long int) __m0 >> 31) & __m1) \
|
|
+ (((signed long int) __m1 >> 31) & __m0)); \
|
|
} while (0)
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
do { \
|
|
union {long long int __ll; \
|
|
struct {unsigned long int __l, __h;} __i; \
|
|
} __xx; \
|
|
__xx.__i.__h = n1; __xx.__i.__l = n0; \
|
|
__asm__ ("ediv %3,%2,%0,%1" \
|
|
: "=g" (q), "=g" (r) \
|
|
: "g" (__n1n0.ll), "g" (d)); \
|
|
} while (0)
|
|
#endif /* __vax__ */
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
|
|
#if !defined (umul_ppmm) && defined (__umulsidi3)
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
{ \
|
|
unsigned long long int __ll = __umulsidi3 (m0, m1); \
|
|
ph = (unsigned long int) (__ll >> LONG_TYPE_SIZE); \
|
|
pl = (unsigned long int) __ll; \
|
|
}
|
|
#endif
|
|
|
|
#if !defined (__umulsidi3)
|
|
#define __umulsidi3(u, v) \
|
|
({long __hi, __lo; \
|
|
umul_ppmm (__hi, __lo, u, v); \
|
|
((unsigned long long) __hi << LONG_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 { \
|
|
unsigned long int __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 { \
|
|
unsigned long int __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 { \
|
|
unsigned long int __x0, __x1, __x2, __x3; \
|
|
unsigned int __ul, __vl, __uh, __vh; \
|
|
\
|
|
__ul = __ll_lowpart (u); \
|
|
__uh = __ll_highpart (u); \
|
|
__vl = __ll_lowpart (v); \
|
|
__vh = __ll_highpart (v); \
|
|
\
|
|
__x0 = (unsigned long int) __ul * __vl; \
|
|
__x1 = (unsigned long int) __ul * __vh; \
|
|
__x2 = (unsigned long int) __uh * __vl; \
|
|
__x3 = (unsigned long int) __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
|
|
|
|
/* Define this unconditionally, so it can be used for debugging. */
|
|
#define __udiv_qrnnd_c(q, r, n1, n0, d) \
|
|
do { \
|
|
unsigned long int __d1, __d0, __q1, __q0, __r1, __r0, __m; \
|
|
__d1 = __ll_highpart (d); \
|
|
__d0 = __ll_lowpart (d); \
|
|
\
|
|
__r1 = (n1) % __d1; \
|
|
__q1 = (n1) / __d1; \
|
|
__m = (unsigned long int) __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 = (unsigned long int) __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) = (unsigned long int) __q1 * __ll_B | __q0; \
|
|
(r) = __r0; \
|
|
} while (0)
|
|
|
|
/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
|
|
#if !defined (udiv_qrnnd)
|
|
#define UDIV_NEEDS_NORMALIZATION 1
|
|
#define udiv_qrnnd __udiv_qrnnd_c
|
|
#endif
|
|
|
|
#if !defined (count_leading_zeros)
|
|
extern
|
|
#ifdef __STDC__
|
|
const
|
|
#endif
|
|
unsigned char __clz_tab[];
|
|
#define count_leading_zeros(count, x) \
|
|
do { \
|
|
unsigned long int __xr = (x); \
|
|
unsigned int __a; \
|
|
\
|
|
if (LONG_TYPE_SIZE <= 32) \
|
|
{ \
|
|
__a = __xr < (1<<2*__BITS4) \
|
|
? (__xr < (1<<__BITS4) ? 0 : __BITS4) \
|
|
: (__xr < (1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
|
|
} \
|
|
else \
|
|
{ \
|
|
for (__a = LONG_TYPE_SIZE - 8; __a > 0; __a -= 8) \
|
|
if (((__xr >> __a) & 0xff) != 0) \
|
|
break; \
|
|
} \
|
|
\
|
|
(count) = LONG_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
|
|
} while (0)
|
|
#endif
|
|
|
|
#ifndef UDIV_NEEDS_NORMALIZATION
|
|
#define UDIV_NEEDS_NORMALIZATION 0
|
|
#endif
|