92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
#ifndef C64_KERNALIO_H
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#ifndef C64_KERNALIO_H
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// Error and status codes returned by krnio_status
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enum krnioerr
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{
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KRNIO_OK = 0,
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KRNIO_DIR = 0x01,
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KRNIO_TIMEOUT = 0x02,
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KRNIO_SHORT = 0x04,
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KRNIO_LONG = 0x08,
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KRNIO_VERIFY = 0x10,
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KRNIO_CHKSUM = 0x20,
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KRNIO_EOF = 0x40,
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KRNIO_NODEVICE = 0x80
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};
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extern krnioerr krnio_pstatus[16];
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// Set filename for next krnio_open operation, make sure
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// that the string is still valid when calling krnio_open
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void krnio_setnam(const char * name);
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// open a kernal file/stream/io channel, returns true on success
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bool krnio_open(char fnum, char device, char channel);
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// close a kernal file/stream/io channel
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void krnio_close(char fnum);
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// get the error / status of the last io operation
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krnioerr krnio_status(void);
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bool krnio_load(char fnum, char device, char channel);
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// select the given file for stream output
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bool krnio_chkout(char fnum);
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// select the given file for stream input
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bool krnio_chkin(char fnum);
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// clear input and output file selection
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void krnio_clrchn(void);
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// write a single byte to the current output channel
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bool krnio_chrout(char ch);
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// read a single byte from the current input channel
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int krnio_chrin(void);
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// read a single byte from the given file/channel, returns
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// a negative result on failure. If this was the last byte
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// the bit #8 (0x0100) will be set in the return value
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int krnio_getch(char fnum);
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// write a single byte to the given file/channel, returns
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// a negative value on failure.
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int krnio_putch(char fnum, char ch);
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// write an array of bytes to the given file/channel
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int krnio_write(char fnum, const char * data, int num);
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// write a zero terminated string to the given file/channel
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int krnio_puts(char fnum, const char * data);
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// read an array of bytes from the given file, returns the number
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// of bytes read, or a negative number on failure
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int krnio_read(char fnum, char * data, int num);
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// read a line from the given file, terminated by a CR or LF character
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// and appends a zero byte.
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int krnio_gets(char fnum, char * data, int num);
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#pragma compile("kernalio.c")
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#endif
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