Opening Com Files

 BBS: Inland Empire Archive
Date: 04-02-93 (23:18)             Number: 264
From: BILL SMITH                   Refer#: NONE
  To: ROBERT SCHOENFELD             Recvd: NO  
Subj: Opening Com Files              Conf: (2) Quik_Bas
RS>In a terminal program that I wrote in QBasic I  could open
RS>com ports 1 and 2 but not 3 or 4.

From Basic you can only open COM 1 and 2, not 3 and 4.  There is a way
to fool the system by changing the port numbers.  The following code
will "swap" the COM 1 and COM 3 port address.  You can then open COM 3
with a OPEN "COM1" command...


byte1% = PEEK(&H400)
byte2% = PEEK(&H401)
byte3% = PEEK(&H404)
byte4% = PEEK(&H405)


Dont forget to reset these port number before you exit your program!!

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