Radio Shack TRS-80 model III Owner's Manual page 53

TRS-80
MODEL
III
DISK
SYSTEM
®
Number
of Extents
—
How
many
segments
(contiguous blocks of
up
to
32
granules) of
disk space
are allocated
to the
file.
©
End
of
File (eof)
—
Shows
the
last
byte
number
of
the
file.
©
Creation Date
—
When
the
file
was
created.
DO
Begin Auto
Command
Input from
a
BUILD-File
do command-line
command-line
is
the
name
of
file
created with
build.
No
extension should
be
specified.
The
file will automatically be
given the extension
/bld.
This
command
reads
and
executes
the
lines stored
in
a special-format
file
created with
the
build command. The
System
executes
the
commands
just as
if
they
had been typed
in
from
the Keyboard.
Command
lines in a
build
file
may
include
library
commands
or
file
specifications for
user programs.
When
do
reaches
the
end
of the
automatic
command
input
file,
it
returns control
tO
TRSDOS.
The
debug
and
clear command
cannot
be included
in a
build
file.
In addition
to
executing
trsdos
library
commands,
you
can
load and
execute
user programs from
a Do-file.
You
will
probably
want
to
make
your program
name
be
the
last line
in
the
Do-file.
Examples
DO STARTER
trsdos
will begin automatic command
input
from starter,
after the operator
answers
the Date and Time
prompts.
AUTO
DO STARTER
Whenever you
start
trsdos,
it
will begin automatic command
input
from starter.
46