2002-04-21 14:05:42 +00:00
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/*****************************************************************************/
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/* */
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/* o65.h */
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/* */
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/* Definitions for the o65 file format */
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/* */
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/* */
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/* */
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/* (C) 2002 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* This files exports structures and constants to handle the o65 relocatable
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* file format as defined by Andre Fachat. See the original document under
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*
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* http://www.6502.org/users/andre/o65/fileformat.html
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*
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* for more information.
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*/
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#ifndef _O65_H
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#define _O65_H
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/* o65 size type. It is 2 bytes for the 6502 and 4 bytes for the 65816 */
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typedef unsigned o65_size;
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/* Define a structure with the sid register offsets */
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typedef struct o65_header o65_header;
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struct o65_header {
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char marker[2]; /* Non-C64 marker */
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char magic[3]; /* o65 magic */
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char version; /* Version number */
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unsigned mode; /* Mode word */
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o65_size tbase; /* Original text (code) segment address */
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o65_size tlen; /* Size of text (code) segment */
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o65_size dbase; /* Original data segment address */
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o65_size dlen; /* Size of data segment */
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o65_size bbase; /* Original bss segment address */
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o65_size blen; /* Size of bss segment */
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o65_size zbase; /* Original zp segment address */
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o65_size zlen; /* Size of zp segment */
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o65_size stack; /* Stacksize needed */
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};
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/* Defines for the mode word */
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#define O65_CPU_65816 0x8000 /* Executable is for 65816 */
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#define O65_CPU_6502 0x0000 /* Executable is for the 6502 */
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#define O65_CPU_MASK 0x8000 /* Mask to extract CPU type */
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#define O65_RELOC_PAGE 0x4000 /* Page wise relocation */
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#define O65_RELOC_BYTE 0x0000 /* Byte wise relocation */
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#define O65_RELOC_MASK 0x4000 /* Mask to extract relocation type */
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#define O65_SIZE_32BIT 0x2000 /* All size words are 32bit */
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#define O65_SIZE_16BIT 0x0000 /* All size words are 16bit */
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#define O65_SIZE_MASK 0x2000 /* Mask to extract size */
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2002-05-18 21:13:52 +00:00
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#define O65_FTYPE_OBJ 0x1000 /* Object file */
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#define O65_FTYPE_EXE 0x0000 /* Executable file */
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#define O65_FTYPE_MASK 0x1000 /* Mask to extract type */
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#define O65_ADDR_SIMPLE 0x0800 /* Simple addressing */
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#define O65_ADDR_DEFAULT 0x0000 /* Default addressing */
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#define O65_ADDR_MASK 0x0800 /* Mask to extract addressing */
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2002-04-21 14:05:42 +00:00
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#define O65_ALIGN_1 0x0000 /* Bytewise alignment */
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#define O65_ALIGN_2 0x0001 /* Align words */
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#define O65_ALIGN_4 0x0002 /* Align longwords */
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#define O65_ALIGN_256 0x0003 /* Align pages (256 bytes) */
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#define O65_ALIGN_MASK 0x0003 /* Mask to extract alignment */
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/* The four o65 segment types. */
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#define O65_SEG_UNDEF 0x00
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#define O65_SEG_ABS 0x01
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#define O65_SEG_TEXT 0x02
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#define O65_SEG_DATA 0x03
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#define O65_SEG_BSS 0x04
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#define O65_SEG_ZP 0x05
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/* Relocation type codes */
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#define O65_RTYPE_WORD 0x80
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#define O65_RTYPE_HIGH 0x40
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#define O65_RTYPE_LOW 0x20
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#define O65_RTYPE_SEGADDR 0xC0
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#define O65_RTYPE_SEG 0xA0
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#define O65_RTYPE_MASK 0xE0
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/* Segment IDs */
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#define O65_SEGID_UNDEF 0x00
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#define O65_SEGID_ABS 0x01
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#define O65_SEGID_TEXT 0x02
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#define O65_SEGID_DATA 0x03
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#define O65_SEGID_BSS 0x04
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#define O65_SEGID_ZP 0x05
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#define O65_SEGID_MASK 0x07
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/* Option tags */
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#define O65_OPT_FILENAME 0
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#define O65_OPT_OS 1
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#define O65_OPT_ASM 2
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#define O65_OPT_AUTHOR 3
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#define O65_OPT_TIMESTAMP 4
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/* Operating system codes for O65_OPT_OS */
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#define O65_OS_OSA65 1
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#define O65_OS_LUNIX 2
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#define O65_OS_CC65_MODULE 3
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/* End of o65.h */
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#endif
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