94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2007, Takahide Matsutsuka.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
|
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* \file
|
|
* mef.h
|
|
* The Micro Executable Format
|
|
* \author
|
|
* Takahide Matsutsuka <markn@markn.org>
|
|
*/
|
|
/*
|
|
* MEF file format:
|
|
* [AreaDecls]
|
|
* BYTE nAreas (0-15)
|
|
* struct AreaSize[nAreas]
|
|
* [Data]
|
|
* binary*
|
|
* [Relocation]
|
|
* WORD nRelocs
|
|
* struct Relocation[nRelocs]
|
|
*/
|
|
|
|
#ifndef __MEF_H__
|
|
#define __MEF_H__
|
|
|
|
|
|
/*
|
|
* mode
|
|
* bit 7: read/write (1) / read only (0)
|
|
* bit 3-0: Area index
|
|
* checksum
|
|
* just a sum of all data of the area
|
|
*/
|
|
#define MEF_AREA_RW 0x80
|
|
#define MEF_AREA_MAX 0x10
|
|
|
|
struct Area {
|
|
unsigned char mode;
|
|
uint16_t size;
|
|
uint16_t checksum;
|
|
};
|
|
|
|
/*
|
|
* mode
|
|
* bit 7: Absolute (1) / Relative (0)
|
|
* bit 6: MSB (1) / LSB (0) (in byte mode)
|
|
* bit 5: Byte mode (1) / Word mode (0)
|
|
*/
|
|
#define MEF_RELOC_ABSOLUTE 0x80
|
|
#define MEF_RELOC_MSB_BYTE 0x60
|
|
#define MEF_RELOC_LSB_BYTE 0x20
|
|
|
|
struct Relocation {
|
|
unsigned char mode;
|
|
uint16_t address;
|
|
uint16_t data;
|
|
};
|
|
|
|
unsigned char load_byte();
|
|
|
|
void mef_load(unsigned char* offset);
|
|
unsigned char load_byte();
|
|
void mef_reloc(unsigned char* offset, struct Relocation* reloc);
|
|
|
|
#endif /* __MEF_H__ */
|