PUMA Station Board
7-2
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DEMM 386 Software Driver
40H (64 in decimal).
tttt
specifies an area of the extended memory (in
kilobytes) to be reserved that will not be used by
the EMS driver. Without the /T option, all of
the extended memory will be used as expanded
memory.
aaaa-bbbb
specifies that a certain range of memory
should be excluded from EMS mapping. aaaa is
the starting segment address and bbbb is the
ending segment address of the range. For
example, if a network adapter in your system
occupies memory from D0000 to D3FFF, specify
/X=D000-D3FF to exclude this range from EMS
mapping.
cccc-dddd
specifies that a certain range of memory
should be included in EMS mapping. cccc is the
starting segment address and dddd is the ending
segment address of the range. This option is
very useful if you want the EMS driver to utilize
unused video area. For example, if a Hercules
graphics adapter is installed in your system, the
memory range between A0000 to AFFFF is not
used at all. By specifying /I=A000-AFFF, the
EMS driver will utilize the area for EMS map-
ping.
/L
specifies that the backfill area (384KB from
4000:0 to 9000:FFFF) will be used exclusively as
conventional memory. The EMS driver will not
be able to use this area as page frames or EMS
pages.