Operator
Familiarization—MicroLab
|
Instruction
SHIFT
Key
The
SHIFT
key
has
two
functions.
It
allows
you
to
escape
from
functions such
as
AUTO,
and
it
enables the
second
set
of key
functions
printed
in
orange
on
the
keypad. The
SHIFT
key
must be
pressed each time
a
shifted
function
is
required.
Hexadecimal
Keys
The
keys
labeled
O-F
are the
hexadecimal
entry
keys. Each
of
these
keys
has
a
second,
shifted,
function
that we'll
talk
about next.
Shifted Functions
EXAMINE
(SHIFT
4)
Key
The
EXAMINE
key
displays
the contents
of
the
address
pointed to
by
the current address pointer
(CAP).
For
example,
pressing
(SHIFT)
EXAMINE
will
show the current
CAP
address
and
its
contents.
Both
the
INC
and
DEC
keys
can
be
used
in
their
normal
fashion
to
look
at
other
register
contents.
DUMP
(SHIFT
5) Key
The
DUMP
function
causes
the contents
of a
specified
memory
range
to be
dumped
onto
the
LED
display,
or
onto
the
screen
of
a
terminal.
When
(SHIFT)
DUMP
is
entered,
the
display
will
show
“SA”
(starting
address). Enter
the
four-digit
address
of
the
first
location you
want
dumped.
When
the final
digit
of
the starting address
is
entered, the
display
will
show
"EA”
(ending address). Enter
the
last
address
you
want
dumped.
When
the
last
digit of
the
ending
address
is
entered, the
MicroLab!
will
begin
dumping
the
information onto
the
display (and onto
the
terminal screen).
If
a
terminal
is
used, the
dump
can
be
paused
by
pressing
the terminal's space
bar.
To
continue the
dump,
press
the
space
bar again.
RELOC
(SHIFT
6)
Key
A
1K-byte portion
of
MicroLab|
RAM
is
software
relocatable.
That
is,
a 1K-byte
block of
RAM
can be
relocated to
a
new
beginning
address
by
using
the
RELOC
key.
The
1K
block cannot
be
relocated
to a
reserved address
24
space,
such
as
the
address
space
allocated
to
the
system
monitor. The
block will
be relocated
in 1K
address
increments.
For
example, you can’t
relocate the
RAM
to
3FFF,
but you
can
relocate
it
to
4000.
If
an
odd
address,
such as
3FFF
is
entered,
the
monitor
will
relocate the
RAM
to
the
next lower
address
boundary
(3COO0
in
this
case).
When
you
press
(SHIFT) RELOC,
the current address
boundary
will
be displayed.
If
you
enter
a
new base
address, the address
will
be
echoed
back
to
the
display
as
you
enter
it.
As soon
as
the
last
address
digit
is
entered,
the
display
will blank,
then show
“rEAdY”.
If
you
just
want
to
check
the base address, press
(SHIFT) RELOC,
note
the
address, and press
SHIFT
again.
REGISTER
(SHIFT
7) Key
The
REGISTER
key
allows
you
to examine
and
alter
the
microprocessor
register
contents.
For example,
(using
the
8085
Personality
Card)
pressing
(
SH/FT)
REGISTER
will
cause
the
contents
of
the
program
counter
to be
shown
on
the
display.
When
you
press
INC,
the
next
register
will
be
displayed
and
so
on,
through
all
the
registers. The
order
in
which
the
registers are
displayed
is
determined
by
the
personality
card used.
The
register
contents can
be
altered
simply
by
entering
a
new value
from
the
hexadecimal
keys.
To
escape
from
the
register
mode,
press
SHIFT.
If
an
optional
terminal
is
attached
to
the
MicroLab
|,
the
register contents are
displayed
in
table
format on the
terminal screen.
SELF
TEST
(SHIFT
0)
Key
The
SELF
TEST
key
puts the
MicroLab
|
and personality
card
through
a
series
of
tests
to
verify
proper
operation.
Later
in
this
section, we'll
discuss
the
self
test
functions
in
detail.
PROC
TEST
(SHIFT
1)
Key
The
PROC
TEST
is
used
to
test
an Emulator
Processor
and
its
Prototype Control Probe
that
is
plugged
into
the
ZIF
socket on
the personality
card. The
PROC
TEST
features
are
dependent
on which
personality card
is
used. Refer
to
the
personality
card supplement
for
more information
on
this
test.
Summary of Contents for 067-0892-00
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