blob: 04f0e289f34161d76001896ca49b418c3c3c670f [file] [log] [blame]
/* SI mode divide routines for libgcc for MSP430
Copyright (C) 2012-2021 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
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
<>. */
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\
BRA #__mspabi_divull");
asm (".global __mspabi_divllu\n\
BR #__mspabi_divull");