mirror of
https://github.com/cc65/cc65.git
synced 2024-11-16 18:08:04 +00:00
104 lines
4.9 KiB
C
104 lines
4.9 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* 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 member callerdata
|
|
** is an opaque 16 bit datatype 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 passed a count of 1, so you may choose to make this
|
|
** a special case when implementing read(). The read() should return the
|
|
** number of bytes actually read. If the return value differs from the
|
|
** passed count, this is considered an error.
|
|
** NOTE: read() is designed so that the POSIX read() routine can be used
|
|
** for this vector, if you're loading from disk.
|
|
*/
|
|
int __fastcall__ (*read) (int callerdata, void* buffer, unsigned count);
|
|
int callerdata;
|
|
|
|
/* Parameters set by the loader routine */
|
|
void* module; /* Pointer to module data */
|
|
unsigned module_size; /* Total size of loaded module */
|
|
unsigned module_id; /* Module id */
|
|
};
|
|
|
|
|
|
|
|
unsigned char __fastcall__ 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 __fastcall__ mod_free (void* module);
|
|
/* Free a loaded module. Note: The given pointer is the pointer to the
|
|
** module memory, not a pointer to a control structure.
|
|
*/
|
|
|
|
|
|
|
|
/* 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
|
|
|
|
|
|
|