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Night Owl's Shareware - PDSI-006 - Night Owl Corp (1990).iso
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README.TXT
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1991-10-09
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UMBMEM.EXE
UMBMEM.EXE - C & T NEAT Upper memory Manager
Copyright (c) 1991, Jay B. Harlow, All Rights Reserved.
This package contains 2 device drivers to implement the UMB calls
for the HIMEM.SYS XMS driver. One driver is for 386/486 only
machines, the other is for 286 or above. Neither driver WILL work on
an 8086 machine due to 286 & above specific instructions, not only
that AT (tm) by definition is 286 or higher! This driver will only
work on 286 or 386 machines that have C & T NEAT chipsets. I was
meaning to write this for awhile, and with the release of DOS 5.
I figured now is a good enough time.
UMBMEM is being released as SHAREWARE. You may use, copy,
give, or distribute this COMPLETE package any way you choose, I
just ask that if you find that it is very useful for your machine
that you send me $15.00 for each copy that you use in US dollars.
I also would prefer that you not sell this for profit, but you
may include this package as part of your package... ie Resellers
may install it on the machines they sell so long as they don't
include a charge for it...
Jay B. Harlow
dba T.S. Bradley
2501 8th St N #3
Bismarck ND 58501-1111
701-223-5502
harlow@plains.nodak.edu
PACKING.LST:
UMB286.EXE - 286 version of driver.
UMB386.EXE - 386 version of driver.
README.TXT - this readme
TESTUMB.EXE - Allocates & Frees UMB blocks to see if umbmem works.
TESTUMB.C - C source to test program (QC 2.51)
UMBHELP.ASM - MASM source to test program (QC 2.51)
TESTUMB.MAK - make file (WC 2.51)
UMBHELP.H - include file
I install UMBMEM on my machine by copying umb386.exe to
\device\umbmem.exe then adding the above line to my
config.sys
Installation:
CONFIG.SYS
DEVICE=HIMEM.SYS <-- important needs to be first!
DEVICE=UMBMEM.EXE options
DOS=UMB
Dos command line (AUTOEXEC.BAT)
UMBMEM options
OPTIONS:
M=pppp
number of paragraphs for minimum free block, this is
the block size that a free block can be.
I=mmmm-nnnn
defines a useable range of upper memory to use for
UMB's. If this option is specified an autoscan of
shadow memory will not be performed.
X=mmmm-nnnn
defines a range of upper memory that should not be used
for UMB's ie video memory, hard disk memory, LIM page frame.
W
make the available upper memory look like bios extentions.
may help fool windows into enhanced mode...
DEFINITIONS:
pppp a hexidecimal number 0 to 4 digits.
mmmm 1-4 hex digits specifying start of shadow memory
nnnn 1-4 hex digits specifying end of shadow memory
SAMPLE:
DEVICE=\DEVICE\UMBMEM.EXE M=6 I=A000-AFFF I=C000-C7FF I=CC00-EFFF
This lines loads UMBMEM with a minimum of 6 paragraphs on free
memory. Valid UMB memory will be 64K at A000 (I have a Hercules MDA
card), 32K at C000, and 144K at CC00. I have a Seagate SCSI
controller at C800. For a total of 240K of Upper Memory. UMBMEM
automatically loads itself into the first free UMB.
An alternate to the above line is:
DEVICE=\DEVICE\UMBMEM.EXE M:6 I:A000-C7ff I:CC00-EFFF X:B000-BFFF
Which says the same thing...
If you prefer:
DEVICE=\DEVICE\UMBMEM.EXE
this will cause UMBMEM to auto scan memory from C000-FFFF