72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/* SI mode divide routines for libgcc for MSP430
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Copyright (C) 2012-2018 Free Software Foundation, Inc.
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Contributed by Red Hat.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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typedef int sint32_type __attribute__ ((mode (SI)));
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typedef unsigned int uint32_type __attribute__ ((mode (SI)));
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typedef int sint16_type __attribute__ ((mode (HI)));
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typedef unsigned int uint16_type __attribute__ ((mode (HI)));
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typedef int sint08_type __attribute__ ((mode (QI)));
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typedef unsigned int uint08_type __attribute__ ((mode (QI)));
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typedef int word_type __attribute__ ((mode (__word__)));
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#define C3B(a,b,c) a##b##c
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#define C3(a,b,c) C3B(a,b,c)
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#define UINT_TYPE uint32_type
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#define SINT_TYPE sint32_type
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#define BITS_MINUS_1 31
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#define NAME_MODE si
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#include "msp430-divmod.h"
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/* ---------------------------------------------------------------------*/
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/* There is a typo in the MSP430 ABI document. It calls the unsigned
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long integer division function __mspabi_divlu when it should be
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__mspabi_divul. Likewise the unsigned long long integer division
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function is called __mspabi_divllu when it should be __mspabi_divull.
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Earlier versions of this toolchain used generate the ABI compliant
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names, so in order to support object files built with those tools
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we provide stub functions that call the correct routines. */
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asm (".global __mspabi_divlu\n\
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.set __mspabi_divlu, __mspabi_divul");
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/* We cannot use the same trick for __mspabi_divllu as that is defined
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in a different file. Instead we create a stub here. The cost of
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executing the branch instruction will be trivial compared to the
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cost of executing a long long division. */
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#ifdef __MSP430X_LARGE__
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asm (".global __mspabi_divllu\n\
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__mspabi_divllu:\n\
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BRA #__mspabi_divull");
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#else
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asm (".global __mspabi_divllu\n\
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__mspabi_divllu:\n\
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BR #__mspabi_divull");
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#endif
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