3
3-8
Working with S5-DOS/ST
C79000-G8576-C760-03
RAM This parameter provides you with an EMS
window.
FRAME This parameter indicates the place in the
memory at which the EMS window should
be located.
I=B000-B7FF This 32-Kbyte area is normally intended
for the Hercules software video interface.
Since this area is not occupied on your
programming device, it can be used as user
memory.
I=C800-DFFF When your programming device is shipped,
this area is not occupied by hardware. It
can therefore be used as user memory.
X=E000-E0FF If this area is occupied by hardware, it must
be excluded (not for the PG 740 and
PG 760).
I=E100-F5FF The area for the SETUP program can be
used since EMM386 activates the protected
mode and SETUP cannot be run in this
mode (not for the PG 740 and PG 760).
Explanation: I = Include, X = Exclude
3.3 Optimizing Hard Disk Access
DEVICEHIGH=C:\DOS\SMARTDRV.SYS 2048
SMARTDRIVE is an optimizer program that uses part of the
extended memory to accelerate hard disk access.
The above command loads SMARTDRV.SYS in the upper memory
area of the user memory above the 640 Kbyte boundary. The
number 2048 stipulates the maximum size of the cache as
2048 Kbytes. Values between 128 Kbytes and 8182 Kbytes
(8 Mbytes) can be selected.
Parameters
User Memory Management
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