Redefining Control Codes - Epson FX Series User Manual

and make these changes:
130 LPRINT CHR$(27)"&"CHR$(0)"rt";
140 FOR Y=l TO 3: LPRINT CHR$(139);
160 NEXT Y
180 LPRINT "rst"
Line 130 controls the reading of the data. It expects data for three
characters: r, s, and t. This example uses lowercase characters. If nec-
essary, you can use CHR$(114) and CHR$(l16) in place of the "rt".
The attribute byte for each character is sent in line 140 and the other
11 bytes are read from DATA lines. This method is nice for quick and
easy character definition.
If you intend to print your characters in Proportional Mode, you'll
want to add a different attribute byte to the start of each DATA line
and adjust the READ routine for 12 numbers. Don't forget the
attribute byte or you'll end up with results you won't like.

Redefining Control Codes

For some of you dedicated users, the range from 32 to
to 254 may not be large enough to accommodate all the characters
you want. Perhaps you have a passion for Egyptian hieroglyphics, or
maybe you need a complete set of mathematics symbols. And what
about the entire Japanese character set (it has some 4000 symbols)?
If you get carried away with user-defined characters, you may end
up searching for more storage. Anticipating this need, Epson provides
commands that will allow you to define and print certain control
codes in the same way that you treat other characters. (Remember
that the low-order control codes are the ASCII codes 0 through 31 plus
127, and the high-order control codes are
These codes do not normally print symbols on paper, rather they
cause the printer to change modes. To make them print as normal
symbols requires an extra command. For example, the command to
"normalize" the high-order control codes is:
LPRINT CHR$(27)"6"
208
A R G
128
and
126
through 159 plus 255.)
160