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Copyright 1991 David Jurgens |
MSC: unsigned _bios_serialcom(unsigned cmd,unsigned port,unsigned fmt)
- prototype in bios.h
- cmd = _COM_INIT initialize port (INT 14,0)
= _COM_SEND send character (INT 14,1)
= _COM_RECEIVE read character from port (INT 14,2)
= _COM_STATUS get serial port status (INT 14,3)
- fmt = combination of the following:
_COM_CHR7 _COM_CHR8
_COM_STOP1 _COM_STOP2
_COM_NOPARITY _COM_EVENPARITY _COM_ODDPARITY
_COM_110 _COM_150 _COM_300
_COM_600 _COM_1200 _COM_2400
_COM_4800 _COM_9600
- returns status word (INT 14, AX reg, modem status in AL,
port status in AH)
- Turbo C uses bioscomm()
- see INT 14
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_bios_serialcom |
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