From cc80937c3b3fedb80cd76b8a7b6bdc341a38cadf Mon Sep 17 00:00:00 2001 From: cuz Date: Sun, 21 Apr 2002 14:05:42 +0000 Subject: [PATCH] Added new header files git-svn-id: svn://svn.cc65.org/cc65/trunk@1247 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- include/modload.h | 102 ++++++++++++++++++++++++++++++++++ include/o65.h | 137 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 239 insertions(+) create mode 100644 include/modload.h create mode 100644 include/o65.h diff --git a/include/modload.h b/include/modload.h new file mode 100644 index 000000000..b04ae7054 --- /dev/null +++ b/include/modload.h @@ -0,0 +1,102 @@ +/*****************************************************************************/ +/* */ +/* modload.h */ +/* */ +/* o65 module loader interface for cc65 */ +/* */ +/* */ +/* */ +/* (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. */ +/* */ +/*****************************************************************************/ + + + +/* Exports structures and functions to load relocatable o65 modules at + * runtime. + */ + + + +#ifndef _MODLOAD_H +#define _MODLOAD_H + + + +/* The following struct is passed to the module loader. It contains stuff, + * the loader needs to work, and another area where the loader will place + * informational data if it was successful. You will have to check the return + * code of mod_load before accessing any of these additional struct members. + */ +struct mod_ctrl { + /* Parameters passed into the loader routine. The second pointer + * (callerdata) is an opaque pointer that may be used by the caller to + * pass data through to the read routine. The read routine is used by the + * loader to load any required data. There are several calls where the + * read routine is called with a size of 1, so you may choose to make this + * a special case when implementing read(). + */ + unsigned char (*read) (struct mod_ctrl*, void* buffer, unsigned size); + void* callerdata; + + /* Parameters set by the loader routine */ + void* module; /* Pointer to module data */ + unsigned module_size; /* Total size of loaded module */ + void* code; /* Pointer to code segment */ + unsigned code_size; /* Size of code segment */ + void* data; /* Pointer to data segment */ + unsigned data_size; /* Size of data segment */ + void* bss; /* Pointer to bss segment */ + unsigned bss_size; /* Size of bss segment */ +}; + + + +unsigned char mod_load (struct mod_ctrl* ctrl); +/* Load a module into memory and relocate it. The function will return an + * error code (see below). If MLOAD_OK is returned, the outgoing fields in + * the passed mod_ctrl struct contain information about the module just + * loaded. + */ + +void mod_free (struct mod_ctrl* ctrl); +/* Free a loaded module. */ + + + +/* Errors */ +#define MLOAD_OK 0 /* Module load successful */ +#define MLOAD_ERR_READ 1 /* Read error */ +#define MLOAD_ERR_HDR 2 /* Header error */ +#define MLOAD_ERR_OS 3 /* Wrong OS */ +#define MLOAD_ERR_FMT 4 /* Data format error */ +#define MLOAD_ERR_MEM 5 /* Not enough memory */ + + + +/* End of modload.h */ +#endif + + + diff --git a/include/o65.h b/include/o65.h new file mode 100644 index 000000000..9674a590f --- /dev/null +++ b/include/o65.h @@ -0,0 +1,137 @@ +/*****************************************************************************/ +/* */ +/* 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; + + +/* Define a structure with the sid register offsets */ +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 */ +}; + + + +/* 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_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 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 + + + -- 2.39.5