Sharp PC-1500 Instruction Manual page 111

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2. The CSAVE command
Allr ight. countdown ch•cklist .
1. Tape r'eCOl'der' ready and waiting?
ves _ _
no _
2. Tape in?
yes _ _
no
3. Computer on?
yes _ _
no
4. Program on the computer?
yes _ _
no _ _
5. Wires all hooked up right? yes _ _
no
6.
Did you jot down the counter number?
yes _ _
no __
7. Are you dressed?
irrclcv\lnt
If you ansi.\ICl'ed " NO" to al'ly of these questions reread the pr'evious section to clear up the
problem .
Ok.
one more thing and you
arc
ready to go:
With the same comrnand which saves your p1rogram you must give the program a " fi lename".
T his is for reference purposes. Your filename can not
be
longer than 16 ch aracters. To s.ave
the program with a filenarne type:
CSAV E 1 ... ,, , " PROG,. 1 IS><•HI ..
Your program will
be
saved )Nith the name "PROG ,.1" You can assign any name you desire,
whotever is easi
est for you to keep track of. Also. note that there
is
a 16 character length limit for
your filename. If the name is longer than 16 characters, the exces s is ignored. A good practice is
to maintain a pro9ram 1 09, wh ich includes the program name, starting and st·opping location on
tape (use
tf\e counter numbers), and
a
brief descripti6n of what the program does.
Press the (••m•I key. At this time you shoul<l hear a sh rill buzzing sound , a11d the tape should
be
turning. Also the " BUSY" indicator should ligh t up. TI1is tells you that the computer is
"busy" transferring your program from memory to the tape.
If
this does not happen, start again
from the beginning of the section. It took me only 10 tries to get it right. so don't
be
discourag•d.
If I
can
do it, you
can
do it .
Once the computer arrives at the end of the program , the "BUSY" indicator light will go off.
the recorder w i;ll stop, and the "prompt" w ill re -appear on the display. Congratulatior 'IS , your fi rst
Program has be:en saved for future use. In order to insure that this has in fact been accompl ished
we can read it back into memory from the tape as explained in the next section .
3. The CLOAD command
Now that your first program is saved on tape, you will no doubt want to see if it is really there.
To do this is relatively sirnple; use the CLOAD? comrnand, of course.
"What does it do?" you ask . Well. after CSAVEing your program simply type CLOAD? The
computer compares the
CSAVEd
program wiith the one in its memory. If all wen t \vell, it will
calmly display your filename and end its check. If all did not go well . an error message will
be
d isplayed, usually ERROR 43. This tells you that the prograrn on tape is somehow d ifferent
from the program in SHA RP's memory . Erase that portion of tape and start again. Check all
your connection s. and try turning the volume Jnd tone up a little.
The following are inuructions for loading a program back
in :
109
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