1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071 |
- /* SI mode divide routines for libgcc for MSP430
- Copyright (C) 2012-2022 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
|