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RAM
as a
Ram Disk
.
(If
you do
not
want to activate the
RamDisk
in
your 130XE with DOS
2.5,
see
"
If You
Do
Not Want to
Use
the
Ram
Disk, "
below.)
When you
boot
your
130XE
system with
a DOS 2.5 Master
or
System
Diskette
containing
RAMDISK
.COM
,
DOS
will -
•
Display a message
that
it is initializing
the
RamDisk;
•
Set up your computer's extra 64K of memory to act very much
as a disk drive
,
telling
DOS
to regard
it
as
Drive
8;
and
•
Copy the
DOS
file
DUPSYS
and establish MEM.SAV (see
Section 3) on the
Ram
Disk,
and proceed when necessary to
use
the DUP.SYS and MEM.SAV
files
on the
Ram
Disk rather
than
the
files
of
the same name on the Master or System Disk-
ette.
If
you wish to expand the usable capacity of your Ram
Disk
,
you
may
recover
the memory
used
by DUP.SYS and MEM.SAV by
-
•
Changing the contents of location 5439 ($153F) to ATASClll
-
for example
,
POKE
5439,ASC(,'
1
" );
and
•
Deleting the files DUPSYS and MEM.SAV from the
"
diskette
"
in Drive 8
-
that
is,
the Ram Disk
.
Use
option
D.,
DELETE
FILE(S)
,
on
the
DOS Menu and enter
08
:" .• in response to
the
DELETE FILESPEC prompt.
Note: Booting a disk which doesn
't
contain DUP.SYS will
cause
RAM
DISK.
COM to initialize the
Ram Disk
,
but
DUPSYS
and MEM.SAV will not be
moved
to the
RamDisk
.
Using DOS With the Ram Disk
Because
of the size of the
Ram Disk
,
you
may
not
use DOS
Menu
option
J
.,
DUPUCATE
DISK,
to copy either a single-density or
enhanced-density diskette to the
Ram
Disk.
Instead
,
you must
copy individual files
,
taking
care that they do not
exceed
in size
the capacity of the
RamDisk.
You
can
ask DOS to duplicate the
contents
of
the
AamDisk
on an actual diskette.
From
then on
,
126
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