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The 255 is a special number that prevents the computer system from
inserting a CR - LF into the line. Unless, of course, there’s one in your
program.
The extra line feed—CHR$(10)—that accompanies each carriage
return—CHR$(13)—is no problem except when you need to use
CHR$(13) in a graphics program. Getting rid of the extra CHR$(10) is
rather complicated. First you open the printer as a random file:
OPEN "LPTl:" AS #l
Although this allows you to send any code to the printer, you can no
longer use the LPRINT command. Instead, you must use a PRINT #1
command:
PRINT #1,
"Now I can print anything"
This does allow you to print anything, but it ignores any previous
WIDTH statements.
If you want to print more than 80 columns per line in a graphics
program, you must therefore change your opening statement to
include the appropriate WIDTH statement:
OPEN "LPTl:" AS #l : WIDTH #l, 255
There is no easy solution to the problem with CHR$(26). It is best to
change any instance of decimal 26 (hex 1A) in your programs to
another number.
Applesoft BASIC Solutions
Applesoft BASIC does not use PRINT to send data to the screen
and LPRINT to send data to the printer as Microsoft BASIC does.
Therefore, you need to change the programs in this manual some-
what. In most cases all you need to do is to add two lines to each
program and change all instances of LPRINT to PRINT. Add a line at
the beginning of the program that states PR#l and a line at the end
that states PR#0.
For the programs in this manual that contain INPUT statements,
put the line that states PR#l after the INPUT statement.
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