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VIEWMEM.DOC
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1994-02-19
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48 lines
Viewmem - A Window into Core Memory
(C) Copyright 1993 by Tim Gerchmez
-----------------------------------
Viewmem provides you with a window into the core memory of your
computer. It gives you a "real-time" display, so you can see what's
happening in memory as it happens. It should work with any kind of video
monitor, color or mono. It won't work under many multitasking systems, as
it PEEKS into any section of memory directly, and it's my understanding
that many multitaskers disallow this.
To run Viewmem, simply enter VIEWMEM at the DOS prompt. You'll see
a screen filled with moving, sparkling characters. This is the first part
(low memory) of your machine's memory, displayed as ASCII characters. Use
the cursor keys to scroll forward or backward in memory. The number display
in the upper left corner of the screen gives you the segment:offset address
of the memory you're currently looking at (representing the byte in the upper
left corner of the second line of the screen. You can move up by one segment
(actually 64K) by pressing +, or down by pressing -. Viewmem allows you to
view all 16 64K segments (1MB) of memory in your machine. If you have less
than 640K (1MB) of main memory, results will be unpredictable if you try to
view what's not there. It's doubtful you'd do any damage, however.
To get help in Viewmem, press F1, and you'll be presented with a
menu showing you which keys and commands are active in the program. You can
change screen and command-line colors, search for strings of text in memory,
jump to any memory address, dump memory to disk, and toggle ASCII only or
all characters to be displayed.
Viewmem is written in PowerBASIC 3.0, and the source code is
included. I am releasing the program as freeware, no charge of any kind
for use. However, the program is still copyrighted, and you may not
alter and then redistribute it under your own name. Any distribution must
be complete and unaltered, and include this .DOC file.
I hope you find Viewmem to be interesting and educational.
If you have any questions or comments, you can reach me on the PowerBASIC
BBS (1-813-629-9145) or at the address given below.
Tim Gerchmez
12648 S.E. 81st Pl.
Renton, WA 98056-9121
Disclaimer: You use Viewmem at your own risk, and I cannot be held liable
for any damages which may result from the use or abuse of the program.
I offer the program entirely without warranty of any kind.