MEMDISK/DCT
Driver
SYSTEM (DRIVE
=drive,DRIVER ="MEMDISK")
Lets you add a pseudo floppy drive
to
the system which keeps its files
in
memory. Files stored
on
this drive can
be
accessed, read, and
written more rapidly than files
on
a floppy. Only one Memdisk can
be
installed at a time.
All TRSDOS utilities treat the Memdisk drive
as
any other drive, so
you can COPY, BACKUP, REMOVE, PURGE, ATTRIB, and display
the DIRectory of the files
on
the Memdisk.
drive
is
the drive number you wish Memdisk
to
be.
If
you specify a
drive number that
is
already defined, it
is
disabled and the Memdisk
takes its place.
drive
is
a number from 1 to
7.
To
Install the Memdisk
When you start Memdisk, the following menu
is
displayed:
<A>
BanK 0
(PriMary
MeMOry)
<B>
Bard, 1
<C>
Bard,2
<D>
BanKs 1
and
2
<E>
Disable
MeMDISK
Which
type
of
allocation
-
<A>,
<B>,
<C>,
<D>,
or
<E>?
Each bank contains 32K of memory.
If
your system has only 64K of
memory, then you do not have Banks
1
and
2.
Bank 0
is
the top half of user memory. (See the Memory Map
in
the
Technical Reference Manual.)
It
is
shared
by
programs, drivers, filters,
and Memdisk.
Because it is shared, if you select Bank
0 you are prompted for the
number of cylinders that are to be used for the Memdisk
in
Bank
0.
Selecting the number of cylinders allows you to use Memdisk but still
have enough memory for the programs you want to
run.
You must
select at least 3 cylinders.
If
you format Memdisk, the amount of
memory used by each cylinder is shown below:
A-96
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