110 lines
4.2 KiB
C
110 lines
4.2 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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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("adds\t%1, %4, %5\n\tadc\t%0, %2, %3" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "rI" (bh), "%r" (al), "rI" (bl) __CLOBBER_CC)
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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 (al)) \
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{ \
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if (__builtin_constant_p (ah)) \
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__asm__ ("rsbs\t%1, %5, %4\n\trsc\t%0, %3, %2" \
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: "=r" (sh), "=&r" (sl) \
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: "rI" (ah), "r" (bh), "rI" (al), "r" (bl) __CLOBBER_CC); \
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else \
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__asm__ ("rsbs\t%1, %5, %4\n\tsbc\t%0, %2, %3" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "rI" (bh), "rI" (al), "r" (bl) __CLOBBER_CC); \
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} \
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else if (__builtin_constant_p (ah)) \
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{ \
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if (__builtin_constant_p (bl)) \
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__asm__ ("subs\t%1, %4, %5\n\trsc\t%0, %3, %2" \
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: "=r" (sh), "=&r" (sl) \
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: "rI" (ah), "r" (bh), "r" (al), "rI" (bl) __CLOBBER_CC); \
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else \
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__asm__ ("rsbs\t%1, %5, %4\n\trsc\t%0, %3, %2" \
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: "=r" (sh), "=&r" (sl) \
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: "rI" (ah), "r" (bh), "rI" (al), "r" (bl) __CLOBBER_CC); \
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} \
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else if (__builtin_constant_p (bl)) \
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{ \
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if (__builtin_constant_p (bh)) \
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__asm__ ("subs\t%1, %4, %5\n\tsbc\t%0, %2, %3" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "rI" (bh), "r" (al), "rI" (bl) __CLOBBER_CC); \
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else \
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__asm__ ("subs\t%1, %4, %5\n\trsc\t%0, %3, %2" \
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: "=r" (sh), "=&r" (sl) \
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: "rI" (ah), "r" (bh), "r" (al), "rI" (bl) __CLOBBER_CC); \
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} \
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else /* only bh might be a constant */ \
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__asm__ ("subs\t%1, %4, %5\n\tsbc\t%0, %2, %3" \
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: "=r" (sh), "=&r" (sl) \
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: "r" (ah), "rI" (bh), "r" (al), "rI" (bl) __CLOBBER_CC);\
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} while (0)
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#if 1 || defined (__arm_m__) /* `M' series has widening multiply support */
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#define umul_ppmm(xh, xl, a, b) \
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__asm__ ("umull %0,%1,%2,%3" : "=&r" (xl), "=&r" (xh) : "r" (a), "r" (b))
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#define UMUL_TIME 5
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#define smul_ppmm(xh, xl, a, b) \
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__asm__ ("smull %0,%1,%2,%3" : "=&r" (xl), "=&r" (xh) : "r" (a), "r" (b))
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#ifndef LONGLONG_STANDALONE
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#define udiv_qrnnd(q, r, n1, n0, d) \
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do { UWtype __di; \
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__di = __MPN(invert_limb) (d); \
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udiv_qrnnd_preinv (q, r, n1, n0, d, __di); \
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} while (0)
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#define UDIV_PREINV_ALWAYS 1
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#define UDIV_NEEDS_NORMALIZATION 1
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#define UDIV_TIME 70
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#endif /* LONGLONG_STANDALONE */
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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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" mov %|r0, %2, lsr #16\n" \
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" mov %|r2, %3, lsr #16\n" \
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" bic %|r1, %2, %|r0, lsl #16\n" \
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" bic %|r2, %3, %|r2, lsl #16\n" \
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" mul %1, %|r1, %|r2\n" \
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" mul %|r2, %|r0, %|r2\n" \
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" mul %|r1, %0, %|r1\n" \
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" mul %0, %|r0, %0\n" \
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" adds %|r1, %|r2, %|r1\n" \
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" addcs %0, %0, #65536\n" \
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" adds %1, %1, %|r1, lsl #16\n" \
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" adc %0, %0, %|r1, lsr #16" \
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: "=&r" (xh), "=r" (xl) \
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: "r" (a), "r" (b) \
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: "r0", "r1", "r2")
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#define UMUL_TIME 20
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#ifndef LONGLONG_STANDALONE
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#define udiv_qrnnd(q, r, n1, n0, d) \
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do { UWtype __r; \
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(q) = __MPN(udiv_qrnnd) (&__r, (n1), (n0), (d)); \
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(r) = __r; \
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} while (0)
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extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype));
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#define UDIV_TIME 200
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#endif /* LONGLONG_STANDALONE */
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#endif
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