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LOOK12.DOC
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1987-06-25
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51 lines
The LOOK12 Disk Utility is distributed as Shareware.
Use it, copy it, and exchange it freely for non-commercial
purposes. If you have enjoyed using it please send $10 to
help support future developments and give encouragement to:
G. B. GRUENKE
7907 HUDSON ST.
VANCOUVER, B. C.
V6P 4L9
Copyright (C) 1987 G. B. Gruenke
This utility will allow users of IBM-AT and compatables
to examine and edit any sector on their floppy drives.
There are many other utilities that do this very thing
but I could not find any that worked on the 1.2 megabyte
high density drives. This utility was written specificly
for the 80 track high density drive. It will, however,
work for the standard 360K floppy with minor
inconveniences.
The main menu presents you with a choice of Display,
Modify, or Quit. If you choose either Display or Modify
you will be prompted for the Drive, Head, Track, and
Sector you wish to work with. In the display mode the
left side of the screen will show any valid ascii
characters and the right side of the screen will show the
hexidecimal values of each byte for that sector. You may
then page to either the next sector or the previous
sector with the up and down arrows. This is where the
minor inconvenience with 360K drives appears. If you try
to step past Track 39 or Sector 9 you will get a read
error and go back to the main menu. In the modify mode
the screen only displays the hexidecimal values and a
menu at the bottom of the screen presents you with a
choice of Change a byte, Write sector to disk, or Quit.
If you select Change you will be prompted for the
relative position and the new value of the byte to be
changed. This is only changed on the screen and you may
continue to change bytes or quit. The disk is only
altered when you select Write, at that time the sector AS
DISPLAYED ON SCREEN is written to the disk. Thats all,
enjoy!