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DP Tool Club 24
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CD_ASCQ_24_0995.iso
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1995-07-31
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4KB
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84 lines
IMPROVEMENTS AND ADDITIONS IN VARIOUS VERSIONS OF I_CACHE.
Version 1.0
INITIAL RELEASE
Version 1.01
1.) Checks and allows for operation under DRDOS 6.0+.
Version 1.10
1.) Adds intelligence for better detection and caching
of Magneto-Optical drives of varying sector lengths.
Version 1.11 will handle sector lengths of 512, 1024,
and 2048, and 4096 bytes-per-sector.
2.) Adds a new parameter /m+- specifically for Magneto-Optical
drives which allows deleyed-write to be turned off for
the MO while staying active for internal hard disks.
Version 1.11
1.) Changes the intelligence for Magneto-Optical drives
slightly. Sector lengths of 4096 bytes were deleted
from support.
2.) Although previous versions cached Dblspace and Drvspace
compressed drives, this version adds more intelligence in
this regard for the detection and caching of these
drives.
3.) Better error handling. If I_cache finds a bad sector
within a logical track, it won't keep reading the same
track over and will, instead, defer to DOS.
4.) The disk error display has changed (/er+w+). It is now
in the following format:
I_CACHE detects READ/WRITE ERROR
Drive x Sector: 0x000000h (x)
This is displayed in the upper left hand corner of the
screen.
When I_Cache overwrites the screen, the screen is refreshed
and restored to it's original look in TEXT MODE. In GRAPHICS
MODES, I_CACHE will attempt to restore the screen in 16 COLOR
MODES (or less). Whether it is successufl or not depends upon
the SIZE of I_CACHE's I/O BUFFER and the pixel distribution
on the screen. I_CACHE uses its I/O buffer as a temporary
storage area for RLE compressed pixel data. Therefore, the
size of the buffer and the gradient pattern of the screen
pixels determine the amount of screen restoration possible.
The error panel will be displayed for three (3) seconds.
5.) A new help utility has been added: I_HELP.EXE. Run this from
the command line to get some quick tips for installation. It
is also an indexed reader for the I_CACHE.DOC manual.
6.) Certain I_CACHE installation detection problems have been fixed.
7.) The /t: parameter has been expanded to accept a value of 4.
This means that you can now select values of 4,8,16,32, and
64 (sectors per track). Please note that this value has only
been added for compatibility with certain systems. Of all the
values available, /t:4 will give the worst performance.
/t:16 gives the best and /t:32 is a close second (and may
even be better on some systems).
8.) With the exception of the I_CACHE status panels (I_cache -s),
all command line displays are now redirectable through DOS.
This means that, if you are using the /f parameter (flush cache
- it now indicates any buffers that are waiting) or /a: in a
batch file, you can redirect them to NUL so they won't display
to the screen, i.e., I_cache /a:d+e+ > NUL.
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