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Copyright 1991 David Jurgens |
TC: int biosprint( int cmd, int byte, int port )
- prototype in bios.h
- outputs byte to port
- port = 0 (LPT1)
1 (LPT2), etc...
- cmd = 0 (print byte);
1 (init printer port);
2 (get LPT status)
- returns status of (values are or'd flags):
0x01 time out (cmd=0 means output error)
0x08 I/O error
0x10 selected
0x20 out of paper
0x40 acknowledge
0x80 not busy
- MS C uses _bios_printer()
- see INT 17
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biosprint |
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