Steve Karg
157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/**
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* \file
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*
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* \brief Assembler abstraction layer and utilities
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*
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* Copyright (c) 2009 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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#ifndef ASSEMBLER_H_INCLUDED
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#define ASSEMBLER_H_INCLUDED
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#if !defined(__ASSEMBLER__) && !defined(__IAR_SYSTEMS_ASM__) \
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&& !defined(__DOXYGEN__)
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# error This file may only be included from assembly files
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#endif
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#if defined(__ASSEMBLER__)
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# include "assembler/gas.h"
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# include <avr/io.h>
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#elif defined(__IAR_SYSTEMS_ASM__)
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# include "assembler/iar.h"
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# include <ioavr.h>
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#endif
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/**
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* \ingroup group_xmega_utils
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* \defgroup assembler_group Assembler Support
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*
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* This group provides a good handful of macros intended to smooth out
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* the differences between various assemblers, similar to what compiler.h does
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* for compilers, except that assemblers tend to be much less standardized than
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* compilers.
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*
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* @{
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*/
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//! \name Control Statements
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//@{
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/**
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* \def REPEAT(count)
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* \brief Repeat the following statements \a count times
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*/
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/**
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* \def END_REPEAT()
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* \brief Mark the end of the statements to be repeated
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*/
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/**
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* \def SET_LOC(offset)
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* \brief Set the location counter to \a offset
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*/
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/**
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* \def END_FILE()
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* \brief Mark the end of the file
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*/
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//@}
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//! \name Data Objects
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//@{
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/**
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* \def FILL_BYTES(count)
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* \brief Allocate space for \a count bytes
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*/
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//@}
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//! \name Symbol Definition
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//@{
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/**
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* \def L(name)
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* \brief Turn \a name into a local symbol, if possible
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*/
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/**
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* \def EXTERN_SYMBOL(name)
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* \brief Declare \a name as an external symbol referenced by this file
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*/
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/**
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* \def FUNCTION(name)
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* \brief Define a file-local function called \a name
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*/
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/**
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* \def PUBLIC_FUNCTION(name)
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* \brief Define a globally visible function called \a name
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*/
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/**
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* \def WEAK_FUNCTION(name)
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* \brief Define a weak function called \a name
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*
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* Weak functions are only referenced if no strong definitions are found
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*/
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/**
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* \def WEAK_FUNCTION_ALIAS(name, strong_name)
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* \brief Define \a name as a weak alias for the function \a strong_name
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* \sa WEAK_FUNCTION
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*/
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/**
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* \def END_FUNC(name)
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* \brief Mark the end of the function called \a name
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*/
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//@}
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//! \name Section Definition
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//@{
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/**
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* \def TEXT_SECTION(name)
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* \brief Start a new section containing executable code
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*/
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/**
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* \def RODATA_SECTION(name)
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* \brief Start a new section containing read-only data
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*/
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/**
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* \def DATA_SECTION(name)
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* \brief Start a new section containing writeable initialized data
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*/
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/**
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* \def BSS_SECTION(name)
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* \brief Start a new section containing writeable zero-initialized data
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*/
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//@}
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//! @}
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#endif /* ASSEMBLER_H_INCLUDED */
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