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273 lines
9.8 KiB
C
273 lines
9.8 KiB
C
/*****************************************************************************/
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/* */
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/* cbm.h */
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/* */
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/* CBM system specific definitions */
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/* */
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/* */
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/* */
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/* (C) 1998-2004 Ullrich von Bassewitz */
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/* Römerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _CBM_H
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#define _CBM_H
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/* Check for errors */
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#if !defined(__CBM__)
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# error This module may only be used when compiling for CBM machines!
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#endif
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/* Load the system specific files here, if needed */
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#if defined(__C64__) && !defined(_C64_H)
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# include <c64.h>
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#elif defined(__VIC20__) && !defined(_VIC20_H)
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# include <vic20.h>
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#elif defined(__C128__) && !defined(_C128_H)
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# include <c128.h>
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#elif defined(__PLUS4__) && !defined(_PLUS4_H)
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# include <plus4.h>
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#elif defined(__C16__) && !defined(_C16_H)
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# include <c16.h>
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#elif defined(__CBM510__) && !defined(_CBM510_H)
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# include <cbm510.h>
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#elif defined(__CBM610__) && !defined(_CBM610_H)
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# include <cbm610.h>
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#elif defined(__PET__) && !defined(_PET_H)
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# include <pet.h>
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#endif
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/*****************************************************************************/
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/* Variables */
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/*****************************************************************************/
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/* The file stream implementation and the POSIX I/O functions will use the
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* following variables to determine the file type and the disk unit to use.
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*/
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extern unsigned char _curunit; /* Default 8 */
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extern unsigned char _filetype; /* Default 'u' */
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/*****************************************************************************/
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/* Characters codes (CBM charset) */
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/*****************************************************************************/
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#define CH_HLINE 96
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#define CH_VLINE 125
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#define CH_ULCORNER 176
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#define CH_URCORNER 174
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#define CH_LLCORNER 173
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#define CH_LRCORNER 189
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#define CH_TTEE 178
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#define CH_RTEE 179
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#define CH_BTEE 177
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#define CH_LTEE 171
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#define CH_CROSS 123
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#define CH_CURS_UP 145
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#define CH_CURS_DOWN 17
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#define CH_CURS_LEFT 157
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#define CH_CURS_RIGHT 29
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#define CH_PI 126
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#define CH_DEL 20
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#define CH_INS 148
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#define CH_ENTER '\n'
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#define CH_STOP 3
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#define CH_ESC 27
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/*****************************************************************************/
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/* Definitions for directory reading functions */
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/*****************************************************************************/
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/* CBM FILE TYPES */
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#define CBM_T_DEL 0
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#define CBM_T_SEQ 1
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#define CBM_T_PRG 2
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#define CBM_T_USR 3
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#define CBM_T_REL 4
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#define CBM_T_CBM 5 /* 1581 sub-partition */
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#define CBM_T_DIR 6 /* IDE64 and CMD sub-directory */
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#define CBM_T_VRP 8 /* Vorpal fast-loadable format */
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#define CBM_T_OTHER 5 /* Other file-types not yet defined */
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/* CBM FILE ACCESS */
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#define CBM_A_RO 1 /* Read only */
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#define CBM_A_RW 3 /* Read, Write */
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struct cbm_dirent {
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char name[17]; /* File name in PETSCII, limited to 16 chars */
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unsigned int size; /* Size in 256B blocks */
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unsigned char type;
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unsigned char access;
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};
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/*****************************************************************************/
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/* Machine info */
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/*****************************************************************************/
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#define TV_NTSC 0
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#define TV_PAL 1
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#define TV_OTHER 2
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unsigned char __fastcall__ get_tv (void);
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/* Return the video mode the machine is using. */
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/*****************************************************************************/
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/* CBM kernal functions */
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/*****************************************************************************/
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/* Constants to use with cbm_open() for opening a file for reading or
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* writing without the need to append ",r" or ",w" to the filename.
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*
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* e.g.: cbm_open(2, 8, CBM_READ, "data,s");
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*/
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#define CBM_READ 0
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#define CBM_WRITE 1
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/* Kernel level functions */
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void __fastcall__ cbm_k_setlfs (unsigned char LFN, unsigned char DEV,
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unsigned char SA);
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void __fastcall__ cbm_k_setnam (const char* Name);
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unsigned int __fastcall__ cbm_k_load(unsigned char flag, unsigned addr);
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unsigned char __fastcall__ cbm_k_save(unsigned int start, unsigned int end);
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unsigned char __fastcall__ cbm_k_open (void);
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void __fastcall__ cbm_k_close (unsigned char FN);
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unsigned char __fastcall__ cbm_k_readst (void);
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unsigned char __fastcall__ cbm_k_chkin (unsigned char FN);
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unsigned char __fastcall__ cbm_k_ckout (unsigned char FN);
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unsigned char __fastcall__ cbm_k_basin (void);
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void __fastcall__ cbm_k_bsout (unsigned char C);
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void __fastcall__ cbm_k_clrch (void);
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/*****************************************************************************/
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/* BASIC-like file I/O functions */
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/*****************************************************************************/
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/* All cbm_* IO functions set _oserror (see errno.h) in case of an
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* error.
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*
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* errorcode BASIC error
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* 1 = too many files
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* 2 = file open
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* 3 = file not open
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* 4 = file not found
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* 5 = device not present
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* 6 = not input file
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* 7 = not output file
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* 8 = missing filename
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* 9 = illegal device number
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*/
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unsigned int cbm_load (const char* name, unsigned char device, void* data);
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/* Loads file "name" from given device to given address or to the load
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* address of the file if "data" is the null pointer (like load"name",8,1
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* in BASIC).
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* Returns number of bytes that where loaded if loading was successful
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* otherwise 0. "_oserror" contains an errorcode then (see table below).
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*/
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unsigned char cbm_save (const char* name, unsigned char device,
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const void* data, unsigned int size);
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/* Saves "size" bytes starting at "data" to a file.
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* Returns 0 if saving was successful, otherwise an errorcode (see table
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* below).
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*/
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unsigned char __fastcall__ cbm_open (unsigned char lfn,
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unsigned char device,
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unsigned char sec_addr,
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const char* name);
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/* Opens a file. Works just like the BASIC command.
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* Returns 0 if opening was successful, otherwise an errorcode (see table
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* below).
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*/
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void __fastcall__ cbm_close (unsigned char lfn);
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/* Closes a file */
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int __fastcall__ cbm_read (unsigned char lfn, void* buffer, unsigned int size);
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/* Reads up to "size" bytes from a file to "buffer".
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* Returns the number of actually read bytes, 0 if there are no bytes left
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* (EOF) or -1 in case of an error. _oserror contains an errorcode then (see
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* table below).
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*/
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int __fastcall__ cbm_write (unsigned char lfn, void* buffer, unsigned int size);
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/* Writes up to "size" bytes from "buffer" to a file.
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* Returns the number of actually written bytes or -1 in case of an error.
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* _oserror contains an errorcode then (see above table).
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*/
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unsigned char __fastcall__ cbm_opendir (unsigned char lfn, unsigned char device);
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/* Opens directory listing.
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* Returns 0 if opening directory was successful,
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* othervise errorcode corresponding to cbm_open()
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*/
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unsigned char __fastcall__ cbm_readdir (unsigned char lfn, struct cbm_dirent* l_dirent);
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/* Reads one directory line into cbm_dirent structure.
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* Returns 0 if reading directory line was successful.
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* Returns 'true' if reading directory failed or no more files to read.
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*/
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void __fastcall__ cbm_closedir (unsigned char lfn);
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/* Closes directory by cbm_close (unsigned char lfn) */
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/* End of cbm.h */
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#endif
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