can define any positions except the defined control code positions.
This means that once a character is defined and assigned a value
(and the download character set is selected), you can use that
character on the printer the same way you would any standard
character. You can send the character with the same ASCII value
(for instance, if you had assigned your character a code of 66,
it would print each time you sent a character “B” to the printer).
You can also access the character from a BASIC program with
the CHR$ function-in this case LPRINT CHR$(66) would print
the character.
Except for the limitation that download characters must be
avoid the defined control code positions, there are no rules or
restrictions on the use of numbers. This means you can use
whatever is most convenient for you-perhaps seldom-used keys
can be replaced by more useful characters. In our example, we’ll
assign the flask a value of 160, which is the code for the character
“J ” or “a”. A rather arbitrary selection, but SG-lo/15 doesn’t
care!
m m, m, m. m. mm m. m. m m m m:m,m,m,m,m m.mm..m.
Figure 9-9. Character designs for the three graph symbols.
88
-
-
-
-