X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fcbm.h;h=6ba1ef47e12a02fa8708efb3a217d9fada5a2ce1;hb=4e18dad55a21955e811ecca92aa4e39323f64a6b;hp=d3b62a1036ca388898f45584b489df66d0243246;hpb=53dd513176425872128ef26031d00952ef7a0628;p=cc65 diff --git a/include/cbm.h b/include/cbm.h index d3b62a103..6ba1ef47e 100644 --- a/include/cbm.h +++ b/include/cbm.h @@ -1,8 +1,35 @@ -/* - * 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. */ +/* */ +/*****************************************************************************/ @@ -11,40 +38,54 @@ -/* Load the system specific files here, if needed */ -#ifdef __C64__ -#ifndef _C64_H -#include -#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 -#endif -#endif -#ifdef __PLUS4__ -#ifndef _PLUS4_H -#include -#endif -#endif -#ifdef __CBM610__ -#ifndef _CBM610_H -#include -#endif +/* Load the system specific files here, if needed */ +#if defined(__C64__) && !defined(_C64_H) +# include +#elif defined(__VIC20__) && !defined(_VIC20_H) +# include +#elif defined(__C128__) && !defined(_C128_H) +# include +#elif defined(__PLUS4__) && !defined(_PLUS4_H) +# include +#elif defined(__C16__) && !defined(_C16_H) +# include +#elif defined(__CBM510__) && !defined(_CBM510_H) +# include +#elif defined(__CBM610__) && !defined(_CBM610_H) +# include +#elif defined(__PET__) && !defined(_PET_H) +# include #endif -#ifdef __PET__ -#ifndef _PET_H -#include -#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 @@ -63,7 +104,167 @@ #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) */ @@ -71,4 +272,3 @@ #endif -