77 lines
3.3 KiB
C
77 lines
3.3 KiB
C
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
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2004, 2005 Free Software Foundation, Inc.
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser 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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#if defined (__GNUC__)
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#if !defined (_LONG_LONG_LIMB)
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/* _LONG_LONG_LIMB is ABI=mode32 where adde operates on 32-bit values. So
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use adde etc only when not _LONG_LONG_LIMB. */
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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do { \
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if (__builtin_constant_p (bh) && (bh) == 0) \
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__asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
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else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
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__asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
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else \
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__asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
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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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if (__builtin_constant_p (ah) && (ah) == 0) \
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__asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
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else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
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__asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
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else if (__builtin_constant_p (bh) && (bh) == 0) \
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__asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
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else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
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__asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
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: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
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else \
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__asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
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} while (0)
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#endif /* ! _LONG_LONG_LIMB */
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#define count_leading_zeros(count, x) \
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__asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
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#define COUNT_LEADING_ZEROS_0 64
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#define umul_ppmm(ph, pl, m0, m1) \
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do { \
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UDItype __m0 = (m0), __m1 = (m1); \
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__asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
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(pl) = __m0 * __m1; \
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} while (0)
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#define smul_ppmm(ph, pl, m0, m1) \
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do { \
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DItype __m0 = (m0), __m1 = (m1); \
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__asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
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(pl) = __m0 * __m1; \
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} while (0)
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#endif
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