--- /dev/null
+/*****************************************************************************/
+/* */
+/* 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
+
+
+
--- /dev/null
+/*****************************************************************************/
+/* */
+/* 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
+
+
+
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