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187 lines
6.0 KiB
Plaintext
187 lines
6.0 KiB
Plaintext
/***************************************
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* file - Standard File Functions for *
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* all Commodore 8 bit machines *
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***************************************/
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/* Device IDs */
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enum {KEYBRD, CASST1, MODEM1, SCREEN,
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PRNTR1, PRNTR2, PRNTR3, PRNTR4,
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DRIVE1, DRIVE2, DRIVE3, DRIVE4,
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DRIVE5, DRIVE6, DRIVE7, DRIVE8};
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#define MWRITE $80 //Open File for Write
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#define MREAD $00 //Open File for Read
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#define MRELCT $00 //Relocate (Load at Specified Address)
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#define MABSLT $80 //Absolute (Load at Address in File Header)
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/* RS-232 Errors */
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/* Other Errors */
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#define ERRFNA $FF //Error - Function Not Available
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/* Zero Page System Variables *
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* for diagnostic purposes *
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* Names subject to change */
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char fsiost; //Kernal I/O Status Word
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char fsnofl; //Number of Open I/O Files
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char fslfno; //Current Logical File Number
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char fsdvno; //Current Device Number
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char fssadr; //Current Secondary Address
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char fsfnlo,fsfnhi; //Pointer: Current Filename
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char fsfnln; //Length of Current Filename
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char fsrcvb; //Serial Bus Received Byte
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/* System Variables */
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char fsbufr[]; //String Concatenation Buffer
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char fscntr; //Directory Entry Count
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/* File Load *
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* Loads File into Memory *
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* Args: md - Mode | DriveID *
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^ &n - Filename *
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* Returns: Error Code (0=None) *
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* Load Address */
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char fload();
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/* File Save *
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* Save File from Memory *
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* Args: md - Mode | driveid *
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^ &n - Filename *
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* Returns: Error Code (0=None) */
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char fsave();
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/* File Open *
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* Opens File Specified by Name *
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* Args: m - mode | driveid *
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* &f - string containing filename *
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* Returns: file pointer if successful *
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0 if an error occurs */
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char fopen();
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/* File Close *
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* Closes File Opened to File Pointer *
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* Args: fp - file pointer */
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char fclose();
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/* End of File *
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* Check for End of File Condition *
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* Args: fp - file pointer *
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* Returns: EOF Indicator *
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* (0 if not at end of file *
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* 255 if not implemented *
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or non-zero EOF value) */
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char feof();
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/* File Error *
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* Check File Error Indicator *
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* Args: fp - file pointer *
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* &s - string for error text *
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* Returns: platform specific error number *
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* (0 if no error *
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* 255 if not implemented) */
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char ferror();
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/* Flush File Buffer *
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* Flush File Output Buffer *
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* Args: fp - file pointer *
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* Returns: platform specific error number *
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* (0 if no error) */
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char fflush();
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/* Read Character from File *
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* Args: fp - file pointer *
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* Returns: ASCII value of character, *
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* platform specific error number *
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* (0 if no error *
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* 255 if not implemented) */
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char fgetc();
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/* Load to Memory from File *
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* Args: md - mode + device# *
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* &f - string containing filename *
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* Requires: setdst(); *
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* Returns: platform specific error *
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* (0 if no error *
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* 255 if not implemented) *
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* end address of load */
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char fload();
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/* Write Character to File *
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* Args: fp - file pointer *
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* c - ASCII character to write *
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* Returns: platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fputc();
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/* Read String from File *
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* Buffers up to 128 characters *
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* until C/R is pressed *
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* Args: fp - file pointer *
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* &s - string read from file *
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* Returns: number of characters read, *
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* platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fgets();
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/* Write String to File *
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* Writes up to 128 characters of a *
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* null terminated string *
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* Args: fp - file pointer *
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* &s - string to print from *
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* Returns: platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fputs();
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/* Write Line to File *
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* Write String to File followed by C/R *
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* Args: fp - file pointer *
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* &s - string to print from *
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* Returns: ending position in string *
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* 255 if error during write */
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char fputln();
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/* Read Bytes from File *
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* Reads until EOF is reached *
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* Args: fp - file pointer *
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* n - number of bytes to read *
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* Requires: setdst(); *
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* Returns: number of bytes read, *
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* platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fread();
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/* Save Memory to File *
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* Args: d - device# *
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* &f - string containing filename *
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* Requires: setsrc(); setdst(); *
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* Returns: platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fload();
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/* Verify File against Memory *
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* Args: md - mode + device# *
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* &f - string containing filename *
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* Requires: setdst(); *
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* Returns: platform specific error *
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* (0 if no error *
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* 255 if not implemented) *
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* end address of verify */
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char fload();
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/* Write Bytes to File *
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* Args: fp - file pointer *
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* n - number of bytes to write *
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* Requires: setdst(); *
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* Returns: number of bytes written, *
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* platform specific error *
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* (0 if no error *
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* 255 if not implemented) */
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char fwrite();
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