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- 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
- <