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24 Delta User’s Manual
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memory, just type:
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PR#l
LIST
PR#g
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The PR#l says “send everything to the printer”, the LIST
sends it, and the PR#O says “Ok, back to the screen now”. (There
are some slightly different versions of these commands in Appen-
dix C.)
Some other computers require you to open the printer as a -
numbered device, and then direct the output to that device. For
example, to list a program on the printer with a Commodore C-64
computer you type the following:
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OPEN4,4
CMD4
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LIST
PRINT#4
: CLOSE4
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This says that the printer is device 4, directs the output to it,
lists the program, and finally closes device 4.
The appendix gives more information about listing programs
on various computers. Find the appendix that tells how your com-
puter works, and try it.
Now that we all know how our computers address the printer,
let’s try listing a BASIC program. Load a BASIC program and
LLIST it (or however your computer does it).
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We’ve crossed the first major hurdle-learning how to list pro-
grams on Delta. Now we are ready to jump into the world of pro-
gramming with Delta. But first, there are a few fundamentals that
we need to cover.
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Establishing communications
We’ve learned something about communicating with our
printer. Now we need to adapt what we know to printing in a
BASIC program. Generally, computers use about the same proce-
dure for printing in a program as they do to list a program. Again
take a few moments to look at the appendix that relates to your
computer. We’ll continue when you have it all figured out.
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