[comp.sys.ibm.pc] Keyboard acitvated resident rou

cuddy@convex.UUCP (11/25/87)

dipto@umbc3.UUCP writes:
> Can a RAM resident program be written completely in Microsoft C so that it
> accesses the 8253 timer-chip and/or the serial com port periodically ? Any
> wisdom in this topic will be greatly appreciated. 

  one of the recent back-issues of Dr. Dobbs Journal had a tsr serial port 
  handler in it.  It took over one of the interrupts and you could use existing
  well-behaved software with it at speeds up to 34 or 38k baud.  It was written
  in ASM (most of the time, you want interrupt stuff in ASM anyways).

  Hope it helps.
  Mike Cuddy
  CONVEX Computer Corp
  701 N. Plano Rd. 
  Richardson, TX  75081
  inhp4!convex!cuddy

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  my opinions are not even my own.
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