Radio Shack TRS-80 model III Owner's Manual page 93

TRS-80
MODEL
III
DISK
SYSTEM
After
you
an swer
the files question, basic
will ask:
MEMORY SIZE?
Simply
press
(ENTER)
without typing
a
number.
You
will then
have
the
maximum
amount
of
ram
available for use
by
basic.
If
you
will
want
to load
and
use machine-language programs
or
routines,
you
will
have
to protect
your basic
memory
from
these machine-language programs.
In
such
a case,
respond with
the highest
memory
address
(in
decimal form) you
want basic
to
use
for storing
and executing your basic programs. Addresses
above
the
number
you
specify
will
then be
protected
from
use by
basic.
Example:
MEMORY SIZE? 32000
CENTER]
causes basic
to protect addresses
above
32000.
If
you have 16K
of
ram,
this
means
that you'll
have 32767-32000
=
767
bytes protected
for storing your
machine-language
routines.
After
you answer
the
MEMORY SIZE?
question,
Disk basic
will display the
following information:
1
Which
version of
Disk basic you
are using
2.
Copyright
information
3.
The number
of
free
bytes available
4.
The number
of concurrent
files
you have
requested.
To
exit
from Disk
basic and
return
to the
trsdos ready
mode,
type:
CMD"S"
[ENTER)
This
results in a
normal
return
to
trsdos,
without
re-initialization
of
the system.
You may
recover your program
if
you
haven't
changed
user
memory
while
in
trsdos. Use
basic *.
92