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1995-07-26
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Mr. Compare
John G. Nozum
9 Waynesburg Pike
Moundsville, West Virginia 26041
USA
Did you wish that had a program that easily compares two files. Maybe you
copied a critical file and you want to check it, well, here it is! Maybe you
duplicated a file with another name three years ago and you want to see if this
old file is the same as another file. Well, here's your tool!
The program is easy to use. After the introductory screens, you will be taken
to a file requester for the first file (order does not matter). To change
volumes, use the right mouse button to show the volumes instead of filenames.
If you want to abort, just click on QUIT. If you double click on a file or
click on OK, it will proceed. The second file requester will be in the same
path as the one you selected on the first one, but however, you can use a
different path or volume. After selecting the second file, the program will
first compare the sizes. If the sizes are different, you will be immediately
notified, for it is obvious that there is a difference. However, if the sizes
are the same, it will automatically start the comparison. Even if the sizes
are different, you can still do a comparison if you have such an odd need to.
However, the shorter file will show dashes in place of the data bytes in the
locations which correspond to the other file. All locations and data bytes
will be shown both in decimal and hexadecimal. Those in hex will be proceeded
by a '$' and be enclosed in parentheses. If you want to abort the check, press
the ESC key. If you press RETURN, the listing will be paused and a
bytes-remaining will be shown in reverse field in the upper right-hand corner.
If you do this, use the space bar to unpause. Also, you can just pause the
listing by using the space bar and do the same to unpause it. After the
listing is done or aborted, if there are any differences, you will be given the
option to print the differences. The hardcopy will look pretty much like that
of the screen. The program is written in AMOS and has a very good user
interface. It was programmed in the NTSC video standard, which is nice in the
U.S. I don't expect any problems on PAL systems, either.
If you need to go to Workbench or something while this program is running, just
use LEFT-AMIGA-A to toggle. Also, if the program seems to "hang" with a black
screen when starting, use LEFT-AMIGA-A repeatedly until a visible screen
appears; This is due to a bug in the AMOS compiler. It will work with any
Kickstart from 1.3 to at least 3.0 and probably 3.1, too. Enjoy!
from John G. Nozum