/*****************************************************************************/ /* */ /* o65.h */ /* */ /* Definitions for the o65 file format */ /* */ /* */ /* */ /* (C) 2002 Ullrich von Bassewitz */ /* Wacholderweg 14 */ /* D-70597 Stuttgart */ /* EMail: uz@musoftware.de */ /* */ /* */ /* This software is provided 'as-is', without any expressed or implied */ /* warranty. In no event will the authors be held liable for any damages */ /* arising from the use of this software. */ /* */ /* Permission is granted to anyone to use this software for any purpose, */ /* including commercial applications, and to alter it and redistribute it */ /* freely, subject to the following restrictions: */ /* */ /* 1. The origin of this software must not be misrepresented; you must not */ /* claim that you wrote the original software. If you use this software */ /* in a product, an acknowledgment in the product documentation would be */ /* appreciated but is not required. */ /* 2. Altered source versions must be plainly marked as such, and must not */ /* be misrepresented as being the original software. */ /* 3. This notice may not be removed or altered from any source */ /* distribution. */ /* */ /*****************************************************************************/ /* This files exports structures and constants to handle the o65 relocatable * file format as defined by Andre Fachat. See the original document under * * http://www.6502.org/users/andre/o65/fileformat.html * * for more information. */ #ifndef _O65_H #define _O65_H /* o65 size type. It is 2 bytes for the 6502 and 4 bytes for the 65816 */ typedef unsigned o65_size; /* Structure that defines the o65 file header */ typedef struct o65_header o65_header; struct o65_header { char marker[2]; /* Non-C64 marker */ char magic[3]; /* o65 magic */ char version; /* Version number */ unsigned mode; /* Mode word */ o65_size tbase; /* Original text (code) segment address */ o65_size tlen; /* Size of text (code) segment */ o65_size dbase; /* Original data segment address */ o65_size dlen; /* Size of data segment */ o65_size bbase; /* Original bss segment address */ o65_size blen; /* Size of bss segment */ o65_size zbase; /* Original zp segment address */ o65_size zlen; /* Size of zp segment */ o65_size stack; /* Stacksize needed */ }; /* Marker, magic and version number */ #define O65_MARKER_0 0x01 #define O65_MARKER_1 0x00 #define O65_MAGIC_0 0x6F /* 'o' */ #define O65_MAGIC_1 0x36 /* '6' */ #define O65_MAGIC_2 0x35 /* '5' */ #define O65_VERSION 0x00 /* Defines for the mode word */ #define O65_CPU_65816 0x8000 /* Executable is for 65816 */ #define O65_CPU_6502 0x0000 /* Executable is for the 6502 */ #define O65_CPU_MASK 0x8000 /* Mask to extract CPU type */ #define O65_RELOC_PAGE 0x4000 /* Page wise relocation */ #define O65_RELOC_BYTE 0x0000 /* Byte wise relocation */ #define O65_RELOC_MASK 0x4000 /* Mask to extract relocation type */ #define O65_SIZE_32BIT 0x2000 /* All size words are 32bit */ #define O65_SIZE_16BIT 0x0000 /* All size words are 16bit */ #define O65_SIZE_MASK 0x2000 /* Mask to extract size */ #define O65_FTYPE_OBJ 0x1000 /* Object file */ #define O65_FTYPE_EXE 0x0000 /* Executable file */ #define O65_FTYPE_MASK 0x1000 /* Mask to extract type */ #define O65_ADDR_SIMPLE 0x0800 /* Simple addressing */ #define O65_ADDR_DEFAULT 0x0000 /* Default addressing */ #define O65_ADDR_MASK 0x0800 /* Mask to extract addressing */ #define O65_ALIGN_1 0x0000 /* Bytewise alignment */ #define O65_ALIGN_2 0x0001 /* Align words */ #define O65_ALIGN_4 0x0002 /* Align longwords */ #define O65_ALIGN_256 0x0003 /* Align pages (256 bytes) */ #define O65_ALIGN_MASK 0x0003 /* Mask to extract alignment */ /* The mode word as generated by the ld65 linker */ #define O65_MODE_CC65 (O65_CPU_6502 | \ O65_RELOC_BYTE | \ O65_SIZE_16BIT | \ O65_FTYPE_EXE | \ O65_ADDR_SIMPLE | \ O65_ALIGN_1) /* The four o65 segment types. */ #define O65_SEG_UNDEF 0x00 #define O65_SEG_ABS 0x01 #define O65_SEG_TEXT 0x02 #define O65_SEG_DATA 0x03 #define O65_SEG_BSS 0x04 #define O65_SEG_ZP 0x05 /* Relocation type codes */ #define O65_RTYPE_WORD 0x80 #define O65_RTYPE_HIGH 0x40 #define O65_RTYPE_LOW 0x20 #define O65_RTYPE_SEGADDR 0xC0 #define O65_RTYPE_SEG 0xA0 #define O65_RTYPE_MASK 0xE0 /* Segment IDs */ #define O65_SEGID_UNDEF 0x00 #define O65_SEGID_ABS 0x01 #define O65_SEGID_TEXT 0x02 #define O65_SEGID_DATA 0x03 #define O65_SEGID_BSS 0x04 #define O65_SEGID_ZP 0x05 #define O65_SEGID_MASK 0x07 /* Option tags */ #define O65_OPT_FILENAME 0 #define O65_OPT_OS 1 #define O65_OPT_ASM 2 #define O65_OPT_AUTHOR 3 #define O65_OPT_TIMESTAMP 4 /* Operating system codes for O65_OPT_OS */ #define O65_OS_OSA65 1 #define O65_OS_LUNIX 2 #define O65_OS_CC65_MODULE 3 /* End of o65.h */ #endif