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Key
*8
A
ID:
4.2-1.
'8
Mode
Entries
Description
Enter
*8 Mode, key A to
advance to first window.
Start
of Dump location,
initially the
TPTR location,
a
different location may be
keyed in
if
desired.
End of Dump location,
initially
the DSP location,
a ditferent location may
be keyed in
if
desired.
Ready
to Dump, to initiate
dump, key
any number
then
A.
While dumping,
"08:"
will
be
displayed
in
the
lD
field and the
location number
in
the
Data
field.
The location
number will stop
incrementing when
the
SECTION
4.
EXTERNAL STORAGE PERIPHERALS'
a
field site, dump the residual data before
removing the tape.
To
dump the residual data enter the *8 Mode,
advance directly to window
3
and initiate
a
dump.
Because data are written to
tape
in
fixed
blocks
of 512locations,
the
TPTR may be
in
the
middle of an output
array.
Entering a location
for the
TPTR, even the location originally
displayed,
will result
in
the
TPTR being moved to
the
first output array stafi marker following the
location
entered.
Thus,
the portion of the array
following the
originalTPTR location would not
be
written to tape.
To use the *8 Mode
to transfer all data from
Final Storage to tape, enter a start of dump
location number
which is
1
greater than the end
of
dump location, advance to ready to dump
(03:) and key
any number and
A.
Data
transfer
occurs immediately and
is
completed when the
display shows "08:" and the
current
DSP
location.
To dump a portion of the data in Final Storage,
key
in
the start and
end locations before
initiating the
dump. The
locations
can be
determined by viewing the contents
of Final
Storage
in
the
*7
Mode.
By saving the current
location of
the DSP and using
it
for
the starting
location on
the next visit to the site, only the
data stored between visits are transferred
to
tape.
NOTE:
A
tape dump can be aborted by
keying
#.
However,
since
it
cannot be
aborted
in
the middle of
a
512
data point
block,
up
to
5 seconds may
elapse
before
the
tape stops.
4.2.2
MANUAL STORAGE MODULE OR PRINTER
DUMP. *9
MODE
Using
the *9 Mode, data in Final Storage can
be
transmitted as ASCII or binary data out the
serial port by manually initiating
a
dump.
lf on-
line printing
is
enabled
with Instruction 96 or the
*4 Mode, entering *9 will stop
it.
On-line printing
will
be re-enabled if no keyboard entries are
made
for 3.4
minutes.
Return to the
*0 Mode
when
the dump
is
completed.
01:)iXXXX
A
02:XXXXX
A
03:00
dump is complete.
lf
the
TPTR is
at
the same location as the
DSP,
then
a block of 512 "dummy" values are
transferred. lThis provides a means of checking
the 21)Ucas$ette
connections and the cassette
operation. {uring data
playback,
the
PC2O1
and C20 Cabsette
Interfaces recognize dummy
values and
{o
not
transmit them.
When on-linb tape
transfer is not enabled and
the
*8 Mode is used to dump new data, the start
of
dump
poirftter
(TPTR)
will remain where
it
was
when the
dulnp was completed or aborted until
the next timd
the'8
Mode
is
entered.
lf
the End
of Dump lochtion (window 2)
is
changed while
in
the *8
Modej,
the TPTR
will
be
set to its previous
value when
the.8
Mode
is
exited.
Changing
the
program
an{
compiling moves the TPTR to the
current DSP location.
When on-linb, the
21X dumps data to tape
in
blocks of 51P Final
Storage
locations.
Residual
data is data
which has accumulated since the
last
full
block. When picking
up a data tape
from
4-3
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