home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Magnum One
/
Magnum One (Mid-American Digital) (Disc Manufacturing).iso
/
d21
/
qw12.exe
/
QWHITE12.EXE
/
IBMCACHE.TEC
< prev
next >
Wrap
Text File
|
1990-08-30
|
1KB
|
30 lines
ID:IC IBM CACHE considerations.
DESQview/QEMM Technical Note
by Stan Young
IBM Cache: The IBM Cache uses exTENDed memory (not exPANDed)
and if loaded after our Expanded memory manager (QEMM), will not
see any memory if you have not taken steps to reserve some
extended memory for the use of the cache.
If you load the cache first, it will see and use extended memory,
but if QEMM is loaded after it, the cache is confused by the
memory mapping done by QEMM and this will result in disk errors.
Therefore, you should be sure you are loading IBMCACHE after
QEMM.SYS.
If you are using the IBM Cache on a 386 PS/2 with QEMM, load QEMM
first and use the "EXTMEM" or "MEMORY" option to reserve the
amount of memory you want to allocate to the cache. Then load
the cache, allocating to it the amount of memory you have
reserved. Loaded in this fashion, the cache should operate
properly.
This configuration should also be followed if loading other
caches that use extended memory on the PS/2. Naturally, if you
use a cache that uses exPANDed memory, you would have to load the
cache after QEMM and you would not need to reserve any exTENDed
memory.
Copyright (C) 1990 by Quarterdeck Office Systems
* * * E N D O F F I L E * * *