1 /*****************************************************************************/
5 /* CBM system specific definitions */
9 /* (C) 1998-2001 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
41 /* Check for errors */
43 # error This module may only be used when compiling for CBM machines!
48 /* Load the system specific files here, if needed */
49 #if defined(__C64__) && !defined(_C64_H)
51 #elif defined(__C128__) && !defined(_C128_H)
53 #elif defined(__PLUS4__) && !defined(_PLUS4_H)
55 #elif defined(__CBM510__) && !defined(_CBM510_H)
57 #elif defined(__CBM610__) && !defined(_CBM610_H)
59 #elif defined(__PET__) && !defined(_PET_H)
65 /* Characters codes (CBM charset) */
68 #define CH_ULCORNER 176
69 #define CH_URCORNER 174
70 #define CH_LLCORNER 173
71 #define CH_LRCORNER 189
77 #define CH_CURS_UP 145
78 #define CH_CURS_DOWN 17
79 #define CH_CURS_LEFT 157
80 #define CH_CURS_RIGHT 29
86 /* constants to use with cbm_open() for opening a file for reading or
87 * writing without the need to append ",r" or ",w" to the filename.
89 * e.g.: cbm_open(2, 8, CBM_READ, "data,s");
94 /* Kernel level functions */
95 void __fastcall__ cbm_k_setlfs (unsigned char LFN, unsigned char DEV,
97 void __fastcall__ cbm_k_setnam (const char* Name);
98 unsigned int __fastcall__ cbm_k_load(unsigned char flag, unsigned addr);
99 unsigned char __fastcall__ cbm_k_save(unsigned int start, unsigned int end);
100 unsigned char __fastcall__ cbm_k_open (void);
101 void __fastcall__ cbm_k_close (unsigned char FN);
102 unsigned char __fastcall__ cbm_k_readst (void);
103 unsigned char __fastcall__ cbm_k_chkin (unsigned char FN);
104 unsigned char __fastcall__ cbm_k_ckout (unsigned char FN);
105 unsigned char __fastcall__ cbm_k_basin (void);
106 void __fastcall__ cbm_k_bsout (unsigned char C);
107 void __fastcall__ cbm_k_clrch (void);
111 /* BASIC-like file I/O functions
113 * All cbm_* IO functions set _oserror (see errno.h) in case of an
114 * error. For the meaning of the errorcode see the table below.
119 unsigned int cbm_load(const char* name, unsigned char device,
121 /* Loads file "name" from given device to given address or to the load
122 * address of the file if "data" is the null pointer (like load"name",8,1
124 * Returns number of bytes that where loaded if loading was successful
125 * otherwise 0. "_oserror" contains an errorcode then (see table below).
128 unsigned char cbm_save(const char* name, unsigned char device,
129 unsigned char* data, unsigned int size);
130 /* Saves "size" bytes starting at "data" to a file.
131 * Returns 0 if saving was successful, otherwise an errorcode (see table
135 unsigned char cbm_open(unsigned char lfn, unsigned char device,
136 unsigned char sec_addr, const char* name);
137 /* Opens a file. Works just like the BASIC command.
138 * Returns 0 if opening was successful, otherwise an errorcode (see table
142 void __fastcall__ cbm_close (unsigned char lfn);
145 int cbm_read(unsigned char lfn, void* buffer, unsigned int size);
146 /* Reads up to "size" bytes from a file to "buffer".
147 * Returns the number of actually read bytes, 0 if there are no bytes left
148 * (EOF) or -1 in case of an error. _oserror contains an errorcode then (see
152 int cbm_write(unsigned char lfn, void* buffer, unsigned int size);
153 /* Writes up to "size" bytes from "buffer" to a file.
154 * Returns the number of actually written bytes or -1 in case of an error.
155 * _oserror contains an errorcode then (see table below).
158 /* Errorcodes of cbm_* I/O functions:
160 * errorcode BASIC error
165 * 5 = device not present
167 * 7 = not output file
168 * 8 = missing filename
169 * 9 = illegal device number