-/*
- * cbm.h
- *
- * Ullrich von Bassewitz, 07.08.1998
- */
+/*****************************************************************************/
+/* */
+/* cbm.h */
+/* */
+/* CBM system specific definitions */
+/* */
+/* */
+/* */
+/* (C) 1998-2004 Ullrich von Bassewitz */
+/* Römerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* 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. */
+/* */
+/*****************************************************************************/
-/* Load the system specific files here, if needed */
-#ifdef __C64__
-#ifndef _C64_H
-#include <c64.h>
-#endif
+/* Check for errors */
+#if !defined(__CBM__)
+# error This module may only be used when compiling for CBM machines!
#endif
-#ifdef __C128__
-#ifndef _C128_H
-#include <c128.h>
-#endif
-#endif
-#ifdef __PLUS4__
-#ifndef _PLUS4_H
-#include <plus4.h>
-#endif
-#endif
-#ifdef __CBM610__
-#ifndef _CBM610_H
-#include <cbm610.h>
-#endif
+/* Load the system specific files here, if needed */
+#if defined(__C64__) && !defined(_C64_H)
+# include <c64.h>
+#elif defined(__VIC20__) && !defined(_VIC20_H)
+# include <vic20.h>
+#elif defined(__C128__) && !defined(_C128_H)
+# include <c128.h>
+#elif defined(__PLUS4__) && !defined(_PLUS4_H)
+# include <plus4.h>
+#elif defined(__C16__) && !defined(_C16_H)
+# include <c16.h>
+#elif defined(__CBM510__) && !defined(_CBM510_H)
+# include <cbm510.h>
+#elif defined(__CBM610__) && !defined(_CBM610_H)
+# include <cbm610.h>
+#elif defined(__PET__) && !defined(_PET_H)
+# include <pet.h>
#endif
-#ifdef __PET__
-#ifndef _PET_H
-#include <pet.h>
-#endif
-#endif
+
+
+/*****************************************************************************/
+/* Variables */
+/*****************************************************************************/
+
+
+
+/* The file stream implementation and the POSIX I/O functions will use the
+ * following variables to determine the file type and the disk unit to use.
+ */
+extern unsigned char _curunit; /* Default 8 */
+extern unsigned char _filetype; /* Default 'u' */
+
+
+
+/*****************************************************************************/
+/* Characters codes (CBM charset) */
+/*****************************************************************************/
-/* Characters codes (CBM charset) */
#define CH_HLINE 96
#define CH_VLINE 125
#define CH_ULCORNER 176
#define CH_PI 126
#define CH_DEL 20
#define CH_INS 148
-#define CH_ESC 95
+#define CH_ENTER '\n'
+#define CH_STOP 3
+#define CH_ESC 27
+
+
+
+/*****************************************************************************/
+/* Definitions for directory reading functions */
+/*****************************************************************************/
+
+
+
+/* CBM FILE TYPES */
+#define CBM_T_DEL 0
+#define CBM_T_SEQ 1
+#define CBM_T_PRG 2
+#define CBM_T_USR 3
+#define CBM_T_REL 4
+#define CBM_T_CBM 5 /* 1581 sub-partition */
+#define CBM_T_DIR 6 /* IDE64 and CMD sub-directory */
+#define CBM_T_RESERVED 7 /* Not used, but kept free for compatibility */
+#define CBM_T_VRP 8 /* Vorpal fast-loadable format */
+#define CBM_T_OTHER 9 /* Other file-types not yet defined */
+#define CBM_T_HEADER 10 /* Disk header / title */
+
+/* CBM FILE ACCESS */
+#define CBM_A_RO 1 /* Read only */
+#define CBM_A_RW 3 /* Read, Write */
+
+struct cbm_dirent {
+ char name[17]; /* File name in PETSCII, limited to 16 chars */
+ unsigned int size; /* Size in 256B blocks */
+ unsigned char type;
+ unsigned char access;
+};
+
+
+
+/*****************************************************************************/
+/* Machine info */
+/*****************************************************************************/
+
+
+
+#define TV_NTSC 0
+#define TV_PAL 1
+#define TV_OTHER 2
+
+unsigned char __fastcall__ get_tv (void);
+/* Return the video mode the machine is using. */
+
+
+
+/*****************************************************************************/
+/* CBM kernal functions */
+/*****************************************************************************/
+
+
+
+/* Constants to use with cbm_open() for opening a file for reading or
+ * writing without the need to append ",r" or ",w" to the filename.
+ *
+ * e.g.: cbm_open(2, 8, CBM_READ, "data,s");
+ */
+#define CBM_READ 0
+#define CBM_WRITE 1
+
+/* Kernel level functions */
+void __fastcall__ cbm_k_setlfs (unsigned char LFN, unsigned char DEV,
+ unsigned char SA);
+void __fastcall__ cbm_k_setnam (const char* Name);
+unsigned int __fastcall__ cbm_k_load(unsigned char flag, unsigned addr);
+unsigned char __fastcall__ cbm_k_save(unsigned int start, unsigned int end);
+unsigned char __fastcall__ cbm_k_open (void);
+void __fastcall__ cbm_k_close (unsigned char FN);
+unsigned char __fastcall__ cbm_k_readst (void);
+unsigned char __fastcall__ cbm_k_chkin (unsigned char FN);
+unsigned char __fastcall__ cbm_k_ckout (unsigned char FN);
+unsigned char __fastcall__ cbm_k_basin (void);
+void __fastcall__ cbm_k_bsout (unsigned char C);
+void __fastcall__ cbm_k_clrch (void);
+
+
+
+/*****************************************************************************/
+/* BASIC-like file I/O functions */
+/*****************************************************************************/
+
+
+
+/* All cbm_* IO functions set _oserror (see errno.h) in case of an
+ * error.
+ *
+ * errorcode BASIC error
+ * 1 = too many files
+ * 2 = file open
+ * 3 = file not open
+ * 4 = file not found
+ * 5 = device not present
+ * 6 = not input file
+ * 7 = not output file
+ * 8 = missing filename
+ * 9 = illegal device number
+ */
+
+
+
+unsigned int cbm_load (const char* name, unsigned char device, void* data);
+/* Loads file "name" from given device to given address or to the load
+ * address of the file if "data" is the null pointer (like load"name",8,1
+ * in BASIC).
+ * Returns number of bytes that where loaded if loading was successful
+ * otherwise 0. "_oserror" contains an errorcode then (see table below).
+ */
+
+unsigned char cbm_save (const char* name, unsigned char device,
+ const void* data, unsigned int size);
+/* Saves "size" bytes starting at "data" to a file.
+ * Returns 0 if saving was successful, otherwise an errorcode (see table
+ * below).
+ */
+
+unsigned char __fastcall__ cbm_open (unsigned char lfn,
+ unsigned char device,
+ unsigned char sec_addr,
+ const char* name);
+/* Opens a file. Works just like the BASIC command.
+ * Returns 0 if opening was successful, otherwise an errorcode (see table
+ * below).
+ */
+
+void __fastcall__ cbm_close (unsigned char lfn);
+/* Closes a file */
+
+int __fastcall__ cbm_read (unsigned char lfn, void* buffer, unsigned int size);
+/* Reads up to "size" bytes from a file to "buffer".
+ * Returns the number of actually read bytes, 0 if there are no bytes left
+ * (EOF) or -1 in case of an error. _oserror contains an errorcode then (see
+ * table below).
+ */
+
+int __fastcall__ cbm_write (unsigned char lfn, void* buffer, unsigned int size);
+/* Writes up to "size" bytes from "buffer" to a file.
+ * Returns the number of actually written bytes or -1 in case of an error.
+ * _oserror contains an errorcode then (see above table).
+ */
+
+unsigned char __fastcall__ cbm_opendir (unsigned char lfn, unsigned char device);
+/* Opens directory listing.
+ * Returns 0 if opening directory was successful,
+ * othervise errorcode corresponding to cbm_open()
+ */
+
+unsigned char __fastcall__ cbm_readdir (unsigned char lfn, struct cbm_dirent* l_dirent);
+/* Reads one directory line into cbm_dirent structure.
+ * Returns 0 if reading directory line was successful.
+ * Returns 'true' if reading directory failed or no more files to read.
+ */
+
+void __fastcall__ cbm_closedir (unsigned char lfn);
+/* Closes directory by cbm_close (unsigned char lfn) */
#endif
-
projects / cc65 / blobdiff