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GENERAL SYSTEM OPERATION
2.1 -- S\lstem Initialization
being
inserted
into
the
d~ive_
When the
diskette is inserted properly ..
the
label
is
facing
up ..
and the edge of the diskette 1.dith
the
long
narrow
slot
in
the
protective
covering
is
inserted
first.
The labelled
edge will
be the
last edge to be
covered
up
as the diskette is inserted into
th~
drive.
3.
Operators
with EXbug 2 in their systems will
4.
sk i P th
is
step _
The EXb ug 1
command
"MAID"
must
be
entered.
An
aste'Y'isk
<*)
prompt will
be
displayed once
MAID
has been activated.
The MAID command
"E800,iGu
must be entered
if
the
d
eo
ug
man i tor
is EXb ug 1.
Fo'T' EXbug 2
monitors,
the
EXbug
command
"MOOS·'
must
be
entered.
Ei
th
ar command uli i
1
give
c ont'T'o 1
to
the
diskette
controller
at
the
specified
address.
The controller will initialize the
drive electronics and then
proceed
to
read
the
Bootblack
into
memory.
Once
the
Bootblack
has
been
loaded}
control
is
transrerl'ed
to
it.
The Bootblock \JIill then
attempt to load into
memor~
t~e
remainder
of
the resident operating system . .
2. 2
Sign-on Message
Ir
no
e~~ors
occur during the initialization process,
MDOS will display the message:
MDOS VV.RR (M6800)
=
MDOS09 VV.RR (Mb809)
=
meaning that
MDOS
has been successrully loaded rrom disk
and
initialized.
The
ItVV"
and
"RRII
indicate the version and
revision numbers of the operating system,
respectively_
In
addition,
an
equal. sign
(=)
is
displayed
as
a
prompt
indicating that
MDOS
is ready to
accept
commands
from
the
operator.
The
equal
sign prompt is subsequently displayed
each
time the MDOS command
interpreter
gets
control.
The
sign-on
message
showing the version and revision numbers is
only displayed when MOOS is reloaded rrom the diskette .
. 2.3 Initialization Error Messages
If
Tor
some
reason
the
drive
electronics
are
not
properly initialized! or
i~
the diskette in drive
zero
cannot
be
read properly
to
load
the
Bootblack
or
the
resident
Page
02-02
.'"
\
J
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