/* */
/* */
/* */
-/* (C) 1998-2001 Ullrich von Bassewitz */
+/* (C) 1998-2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
-/* Characters codes (CBM charset) */
+/*****************************************************************************/
+/* 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) */
+/*****************************************************************************/
+
+
+
#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_VRP 8 /* Vorpal fast-loadable format */
+#define CBM_T_OTHER 5 /* Other file-types not yet defined */
+
+/* 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 */
+/*****************************************************************************/
+
+
+
+#if defined(__C16__) || defined(__C64__) || defined(__C128__) || defined(__PLUS4__)
+
+#define TV_NTSC 0
+#define TV_PAL 1
+
+unsigned char __fastcall__ get_tv (void);
+/* Return the video mode the machine is using */
+
+#endif
-/* constants to use with cbm_open() for opening a file for reading or
+
+
+/*****************************************************************************/
+/* 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");
-/* BASIC-like file I/O functions
+/*****************************************************************************/
+/* BASIC-like file I/O functions */
+/*****************************************************************************/
+
+
+
+/* All cbm_* IO functions set _oserror (see errno.h) in case of an
+ * error.
*
- * All cbm_* IO functions set _oserror (see errno.h) in case of an
- * error. For the meaning of the errorcode see the table below.
+ * 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,
- const char* data);
+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).
*/
unsigned char cbm_save (const char* name, unsigned char device,
- unsigned char* data, unsigned int size);
+ 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).
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 table below).
+ * _oserror contains an errorcode then (see above table).
*/
-/* Errorcodes of cbm_* I/O functions:
- *
- * 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 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) */
+
/* End of cbm.h */
projects / cc65 / blobdiff