ToggleDTR10

Short:        Controls DTR signal of internal port
Author:       marc@aargh.incubus.sub.org
Uploader:     jow rz uni-wuerzburg de
Architecture: m68k-amigaos

[ this is a slightly condensed version of ToggleDTR.doc, because
  the .readme was incomplete.  -- jow ]


Disclaimer
~~~~~~~~~~

This  program  (and  all  files  related  to it) are Copyright 1993 by Marc
Heuler (Data Design), all rights reserved.

  You may freely distribute ToggleDTR by these conditions:

        · Don't take *anything* for copying, except the cost of the media
          itself

        · Do not change any of the files related to this program

        · Distribute all related files at once, packed into one archive

        · German PD-Serials are not allowed to distribute this program

        · Fred Fish with his famous software library does *not* have to
          care about all these conditions.

This  program  is  "AS  IS",  which  means  you  use it at your *own* risk.
There's no warranty at all.  Please do read the WARNING section.

Many thanks to Michael Herold for the inspiration.



Requirements
~~~~~~~~~~~~

This  program  supports  and  requires  Kickstart 2.04 (v37) or higher.  It
works on the internal serial port only.



What is it?
~~~~~~~~~~~

My system often calls out automatically via modem.  The UUCP software I use
sometimes  hangs  on a call.  It then sends error messages until I manually
abort the transfer.  This is very annoying since the call costs money.

ToggleDTR  is  the solution to those problems.  I use it to turn of the DTR
signal  for a few seconds when UUCico is spending too much time on a call -
causing the modem to hang up.



WARNING
~~~~~~~

This  program  is  a  *dirty*  hack.  It does access the hardware directly.
These are the things you should know before running it:

	· Blindly accesses bit 7 in ciapra of CIA-B to control DTR signal.

	· Checks left and right mousebutton for abort using the hardware
	  registers.

	· Does the inner loop while Forbid()ing multitasking to prevent
	  hazardous trouble on the serial port.