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PRN2LPT1.EZF
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1990-06-13
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3KB
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52 lines
Robert Collard
1751 N. Grand W. Lot 63
Springfield, IL. 62702
June 13, 1990
Dear Victor:
Have you ever seen something that someone wants and can't
remember where you saw it? Well, here it is, a program or
instructions to change our I/O SYS to accept LPT-1 instead of
PRN.
I found it in the November 1986 issue of Soft Sector on
page 53. It took two days of searching, but it may be worth
it if you can Assemble it for us, I need it too. I placed a
copy made up in WordStar ASCI format on the enclosed disk and
labeled it PRN2LPT1. Also enclosed is a printout to work
with. I hope it is a good copy, I could find no typo's. You
may have a copy of this edition on hand?
There was a letter that was answered by Mark Zeiger in
this issue. Mark may have been the man who made this up to
begin with. It has no name on the program itself. This is a
copy of the letter and his answer:
"I have IBM's Display Write 3 running on my system
utilizing the Video RAM Board. The problem is that the
printer device name for the IBM parallel port is LPT1.
Display Write 3's printer setup routine only allows you to
select LPT1, 2 or 3 as your printer ports. Do you know of a
way to configure Display Write 3 to look for the printer
device name PRN, or do you know of any other way to get
Display Write 3 to print on my system?"
Also the person had other questions about a Bernoulli Box
which I won't go into. Here is the answer:
"There is a way to change the IO.SYS device driver to
something else other than PRN. You must first find the
device driver header for the printer driver in MS-DOS.
In normal Sanyo IO.SYS it is located at 0:82E HEX. You will
have to search for the string PRN using DEBUG to find the
location in DS-DOS/Plus(e.g.,S0:700 1000 "PRN" at the DEBUG
prompt). You can either patch the name using DEBUG's E
function or use the program found in figure 2. *See attached*
Remember that the name must be left-justified starting at
BYTE 8 of the device header and must be filled with blanks to
make a name of exactly eight bytes."
I am hoping you can get this to run, it would save making
changes to our system permanently, and would be very
convenient for these "(IBM)" specific programs. Let me know
how this comes out.
Robert Collard
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