Operator
Familiarization—MicroLab
|
Instruction
8.
Now
thatthe
data
is
loaded,
we
need
to
get
out
of
the
auto-increment
mode.
Press
the
SHIFT
key. As
soon
as
the
SHIFT
key
is
pressed,
the
display
will
show
“rEAdY”.
The
SHIFT key
can
be
used
to
escape from
all
monitor controlled
functions
except
a
program you
write,
the
self-
and processor-test routines, and
programmable
key
functions.
We'll talk
about
all
these
functions
later.
The
preceeding steps
load
our
five
data values
into
memory.
Now
we'll
load
the
body of
the
program.
1.
Press
“LOAD
ADDRESS”.
2.
Enter
3090
on
the
keyboard.
Address 3090
is
the
beginning
of
the
add routine.
3.
Press
AUTO again.
The
following
list
of
hexadecimal
digits
is
the
add
program
in
its object code
state.
The
list
reads
from
left
to right, top to bottom.
Enter
the
first
value at
the
upper
left
side
of
the
list,
and
work your
way
across
the
page,
then
move
to
the
next
line
down.
AF
21
80 90
06
05 84 29 05
C2
96
90
32
10
31
C3
00 00
4.
When you've entered
the
last
00,
press
SHIFT
to
escape
from
the auto-increment
mode.
The program
is
now
entered
into
MicroLab! memory.
Program
execution
is
next.
1.
Press
LOAD
ADDRESS
and
enter
3090
(the beginning
of
the
program).
2.
Press
GO.
The
8085
will
now
execute the
program,
then return
control to
the
monitor.
You'll
see
the
MicroLab
|
display
show
“8085
XX",
then
“HELLO”.
This
means
the
program
is
finished.
To look
at
the
value
stored
in
memory,
press the
LOAD
ADDRESS key
and enter 3110.
Location
3110 should
contain
OF,
the
hexadecimal sum
of
the
five
numbers
entered.
This
ends the demonstration
of
the
MicroLab
|.
We haven't
used
all
the facilities available
in
the
MicroLab
I,
nor have
we
explained
all
their functions. That's
coming
up
next.
Keypad
Definitions
The
MicroLab
|
keypad
is
laid
out
in
five
rows
of
five
keys
each,
as
shown
in
Fig.
2-1.
Sixteen
of
the
keys
are
dual-function.
In
the
normal mode,
the
16 keys act
as
a
hexadecimal keypad.
In
the
shifted
mode,
the
keys take on special
functions.
The
nine
command
keys
in
the outer
ring
are used to
operate the
MicroLab
|.
22
Fig.
2-1.
The MicroLab
|
Keypad.
The
outer
keys
control
the
MicroLab
I.
The
inner
keys
are
dual-function
keys.
In
this
text, we'll talk about
each
key
individually,
giving
the
key’s
function and use.
RESET
Key
The
RESET
key
issues
a
master reset
to
the
entire
MicroLab
|.
Current program
execution
is
interrupted, and
control
is
returned
to
the
MicroLab
|
monitor.
When
RESET
is
pressed, the
LED display
is
cleared,
and the
name
of
the
personality
card
in
use
is
displayed, followed
by
the word
“HELLO”.
LOAD
ADDRESS
Key
This
key
allows
you
to
enter
an
address
from
the
MicroLab
|
keypad.
When
you
first
press
LOAD ADDRESS,
the
display
will
show
"CAP
XXXX”.
This
indicates the
position
of
the
current
address
pointer.
As you
enter
the
address,
the
four
rightmost
digits
are
replaced with
the
values
you
enter.
When
the
last
digit
is
entered, the address
is moved to
the
left,
while the data
contained
at
that
address
is
displayed
on
the two rightmost
LEDs. You must
enter
any leading zeros
found
in
the address.
®
Summary of Contents for 067-0892-00
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