Asynchronous Communication Driver

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#2252

From: Joseph C Wang
Date: Sat, 15 Sep 1990 23:59

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I'm modifying a C-program which control a forms scanner.  The program
handles communcations with the scanner via BIOS calls to an
assembly-language communcations driver.  The problem is that the former
programmer left no documentation regarding this driver.

Since I believe this driver is commercical, I was wondering if any of you
in Netland could identify it and tell me what calls the driver takes.

The name of the program is "asynch1.com" and is 548 bytes with a date stamp
of 12-05-86 1:46p.

When one runs "asynch1.com" one receives the message

ASYNCH1 -- Asynchronous Communcation Driver 2.00 [WLB]

The driver seems to take BIOS call 0x62.

Any ideas about where this driver came from?

Any ideas about where I could obtain a better communcations driver?  One that
say returns if it receives a specify series of characters?

Reply by E-Mail, please.




--
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Joseph Wang (joe@athena.mit.edu)           Wake Up! Wake Up!
450 Memorial Drive C-111                   All who wish not to be slaves.
Cambridge, MA 02139

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!snorkelwacker!bloom-beacon!joe
From: joe@athena.mit.edu (Joseph C Wang)
Newsgroups: comp.os.msdos.programmer
Subject: Asynchronous Communication Driver
Message-ID: <1990Sep15.235943.7625@athena.mit.edu>
Date: 15 Sep 90 23:59:43 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: Massachusetts Institute of Technology
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