a) When the password
is
typed correctly.
b) When power
is
turned off.
c) When the auto shut-off time
is
reached.
d) When power failure
is
detected.
The password mode
is
interrupted when the alarm/wake time
is
reached.
WARNING:
The only way to exit
from
the password
if
it is
not
known is
to
initialize
the system
by
either pressing the reset button with the right-hand I
SHIFT
I
and
Ilt~~~HI
keys held down or
by
doing
afull
system reset, as when start-
ing the up the system
for
the first time.
In this case all
your
programs will be lost
and
also anything stored in the
RAM
disk area.
2-26
c) Clock module - the
ALARM
and WAKE functions
The clock module manages the software clock
and
controls the ALARM and
WAKE functions which allow the PX-8
to
switch
on
and
present a message
or
start a program running.
If
the computer
is
in use, and alarm
or
wake time
is
reached, the program being
run
will be interrupted. The screen will clear and
show the message.
In
order to familiarise yourself with the possible ways
of
setting and using the
ALARM and WAKE functions press I
CTRL
I and I
HELP
Ito
turn
on
the System
Display and then press option 2
to
change the ALARM and WAKE options.
Lines 6 and 7
of
the screen then change to:
***
SYSTEM
DISPLAY ***
03/01/84
(THU)
12:01:34
<MENU>
<AUTO
START>
<RAM
DISK>
009
kb
<USER
BIOS>
000
256
b
<MENU
DRIVE>
CBA
<MCT
MODE>
stop,
nonve~ify
<COUNT>
65535
<MENU
FILE)
1
.COM
2.
3 • 4 •
-
Select
numbe~
o~
ESC
to
~etu~n.
<ALARM/WAKE>
l=off
2=ala~m
3=wake
4=message/st~ing
Fig.
2.17
It
is
not possible
to
have
both
the ALARM
and
WAKE functions operating
together.
If
option 2
is
taken it will cancel any WAKE setting and replace it
with
an
ALARM. Option 1 switches
off
whichever
of
the ALARM and WAKE
has been set, and the message string (option
4)
is
used with both the ALARM
and WAKE functions in a slightly different way.
i)
SETTING
THE
ALARM
Before looking at the various options for setting the ALARM, the following
example shows how to set the ALARM simply to switch
on
the computer and
display a message
at
a specific time and date.
Press the
~
key and the
prompt
changes as follows.
***
SYSTEM
DISPLAY
***
<RAM
DISK>
009
kb
<USER
BIOS>
000
256
b
<MENU
DRIVE>
CBA
03/01/84
(T~U)
12:01:34
<MENU>
<AUTO
START)
<MCT
MODE>
stop,
nonve~ify
<COUNT>
65535
<MENU
FILE>
1
.COM
2.
3 • 4 •
-
Set
ala~m
time,
ESC
to
cancel.
MMDDhhmm
Fig.
2.18
2-27