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CHAPTER 2
2.
GENERAL SYSTEM OPERATION
This
chaptg~
provides the user with the basic concepts
that are necessary for the simplified and
typical
operation
of
MOOS.
I t
contains
descriptions
and
examples
or the
initialization procedures and of the basic forms of the
most
frequently
used commands.
These examples clearly illustrate
hoUl MOOS is used to
ed
i t a
programl
to
assemb
1
e
i tl
to
convert it into
a
loadable modulel
to
load
it
and execute
it#
as well as some other useful
ope~ations.
The
commands
are
presented
in
a
sequence
that
is
commonly
followed in a
software development environment.
2.1
System Initialization
To
initialize the operating system,
power must first
be
applied
to the EXORciser and to the diskette drive unit.
No
diskette should be in the drive while power is
being
turned
on
or
off
on
either the drive or the EXORciser.
Once the
power is onl
the following steps must be
~ollowed:
1.
EXbug must be initialized and configured
for
the
proper
speed of the system console.
If
power has Just been turned on for
the
first
time}
EXbug
initialization is automatically
performed by the power-up
interrupt
service
routine in EXbug.
If
power is already on and
MOOS is to be re-initialized,
then either the
ABORT
,or
RESTART
pushbuttons
on
the
EXORciser's front panel must be depressed
to
initialize
EXbug.
The
prompt
"EXBUG V.R"
will be displayed by EXbug indicating
it
is
waiting
for
operator
input.
"V" indicates
the version and
"Rn
the
revision
number
of
the EXbug monitor in the system.
2.
An
MDOS
diskette (one shipped from Motorola
or one that has been properly prepared by the
user
(see section
2.8.10»
must be placed in
drive zero.
The door on the drive unit
must
then
be
closed in order for the diskette to
begin rotating.
For the side-by-side drivesl
drive
zero is on the left side,
as seen from
the front.
For
the
EDOS-converted
systems
us i n g
·t
h e v e
r
tic all
y
.
S
t a c ked d r
i
ve sid
r
i ve
zero is the top one.
The diskette must
be
oriented properly before
Page
02-01
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