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WEDGE.DOC
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1993-09-26
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WEDGE - Resident Software Wedge version 2.0
Release 09/25/93
WEDGE is a TSR which intercepts characters at the serial port,
and redirects them to the keyboard buffer. Application software
doesn't know whether the input came from the keyboard or a device
connected to the serial port, and it doesn't care.
Therefor, you can use WEDGE to have serial barcode scanners send
data to applications without specifically programming your app
for a scanner. (See the LEGAL STUFF at the bottom of this
document.)
WEDGE is also good for answering your phone, keying from the
"RING" signal executed by Hayes compatible modems, and assisting
in other serial-driven automation systems.
Because WEDGE excites every clock tick (about 18 times a second),
you might (and might not) notice a slight degradation in your
overall system speed.
SYNTAX
WEDGE C=comport B=baudrate P=parity W=WordLength S=StopBits
ComPort is either 1 or 2
BaudRate is 110,150,300,600,1200,2400,4800, or 9600
Parity is N, E, or O
WordLength is 7 or 8
StopBits is 1 or 2
Defaults are C=1 B=1200 P=N W=8 S=1
You can execute WEDGE by just entering WEDGE at the command
prompt, if you want the defaults. The defaults are used for
any parameters left out of the command line.
WEDGE takes up approximately 31K of RAM, and hooks vectors 08,
09, 0C, 13, 21, and 28. It uses an interrupt-driven 4K
communications buffer which is serviced independently of the
clock-driven keyboard-stuffing routine.
MODIFICATIONS
WEDGE is a modification of our standard TSR platform. The same
platform can do a number of jobs and background tasks, keying on
any hardware interrupt, including the keyboard.
If you have a specific modification you want us to make to WEDGE
for your application, call me or leave EMail on Compuserve. My ID
is [76207,1600] and my phone number in Memphis is (901) 682-0732.
TROUBLE REPORTS
Please report problems with WEDGE by Compuserve E-Mail to Rob
Cosgrove [76207,1600], the Internet to address:
76207.1600@compuserve.com, by FAX to (901) 681-0445, or as a last
resort by phone at (901) 682-0732. I'll need to know the type of
computer, the amount of memory, a list of drivers loaded in
CONFIG.SYS, a list of other TSR's loaded, the number of FILES and
BUFFERS in CONFIG.SYS, the operating system version, the network
type and version (if any), the type and speed of the input
device, and anything else that may help me diagnose your trouble.
If WEDGE is at fault, I'll modify it and ship you a new copy.
THE PRICE
WEDGE costs $49 per installation, or $98 per site. Try it before
you buy it to make sure it works with your hardware and other
software. If you want to use it, send your payment to:
Rob Cosgrove
654 South White Station Road
Memphis, TN 38117
Phone (901) 682-0732
You'll receive my thanks, a copy of WEDGE without the log-in
message and its delay, and my direct support if needed.
THE LEGAL STUFF
Although WEDGE has so far been a well-behaved TSR, there's always
the possibility it could confict with other TSRs and drivers. By
installing and running WEDGE, you relieve me of all
responsibility for any trouble it might cause. I guarantee that
at the time of its last upload from my computer, it is virus-
free.
I hate to have to do this, but in light of all of the recent
litigation resulting from barcode scanners misreading codes, and
clients dragging programmers into court to recover damages, I
have to. By installing and running WEDGE, you agree to the
following:
If WEDGE is used to redirect the input from a barcode scanner or
other type of scanner you agree to hold me harmless for any
losses resulting from the misreading of any data, or the loss of
any data or data stream. You also agree to defend me in the event
that your client names me as a defendent in any litigation
resulting from a loss caused by the misreading of data or the
possible failure of WEDGE to properly redirect data.
WEDGE does NOT interpret, decode, or translate barcode data.
I make no claims, expressed or implied, about the suitability of
WEDGE for any particular purpose. WEDGE is ONLY what its name
implies - a software wedge which redirects data from the serial
port to the keyboard buffer.