72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/* SI mode divide routines for libgcc for MSP430
|
|
Copyright (C) 2012-2016 Free Software Foundation, Inc.
|
|
Contributed by Red Hat.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published
|
|
by the Free Software Foundation; either version 3, or (at your
|
|
option) any later version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
License for more details.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
typedef int sint32_type __attribute__ ((mode (SI)));
|
|
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
|
|
typedef int sint16_type __attribute__ ((mode (HI)));
|
|
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
|
|
typedef int sint08_type __attribute__ ((mode (QI)));
|
|
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
|
|
typedef int word_type __attribute__ ((mode (__word__)));
|
|
|
|
#define C3B(a,b,c) a##b##c
|
|
#define C3(a,b,c) C3B(a,b,c)
|
|
|
|
#define UINT_TYPE uint32_type
|
|
#define SINT_TYPE sint32_type
|
|
#define BITS_MINUS_1 31
|
|
#define NAME_MODE si
|
|
|
|
#include "msp430-divmod.h"
|
|
|
|
/* ---------------------------------------------------------------------*/
|
|
|
|
/* There is a typo in the MSP430 ABI document. It calls the unsigned
|
|
long integer division function __mspabi_divlu when it should be
|
|
__mspabi_divul. Likewise the unsigned long long integer division
|
|
function is called __mspabi_divllu when it should be __mspabi_divull.
|
|
|
|
Earlier versions of this toolchain used generate the ABI compliant
|
|
names, so in order to support object files built with those tools
|
|
we provide stub functions that call the correct routines. */
|
|
|
|
asm (".global __mspabi_divlu\n\
|
|
.set __mspabi_divlu, __mspabi_divul");
|
|
|
|
/* We cannot use the same trick for __mspabi_divllu as that is defined
|
|
in a different file. Instead we create a stub here. The cost of
|
|
executing the branch instruction will be trivial compared to the
|
|
cost of executing a long long division. */
|
|
|
|
#ifdef __MSP430X_LARGE__
|
|
asm (".global __mspabi_divllu\n\
|
|
__mspabi_divllu:\n\
|
|
BRA #__mspabi_divull");
|
|
#else
|
|
asm (".global __mspabi_divllu\n\
|
|
__mspabi_divllu:\n\
|
|
BR #__mspabi_divull");
|
|
#endif
|