Atari XL User Manual

Characters
TEXT
REGISTER
UPPER CASE
0
lower case
1
INVERSE UPPER CASE
2
inverse lower case
3
111
Colour Register use in Modes 1 and 2
There is another way to put characters on the mode
1 and 2 screens using the commands COLO Rand
PLOT.
Wi th this method, characters are placed on the
mode 1 or 2 screens with a PLO'r command, the
syntax of which is:
PLOT X, Y
where X and Yare screen coordinates, and X =0,
Y
=0 specifies the top left-hand corner of the
display.
The character to be plotted is selected using the
COLOR command. The syntax ef'-the COLOR
command depends upon the graphics mode in use,
and in modes 1 and 2, the syntax is:
COLOR C
where C is a code which specifies not only a
character but also the register in which colour
information for that character is stored. For each.
character there are four possible code numbers,
each specifying the same character, but a different
colour register. For example, the code 42
represents the asterisk, and specifies register 0 for
colour information. The number 10 also represents
an asterisk, but its colour is determined by the

Atari XL Specifications

General

Brand	Atari
Model	XL
Category	Desktop
Language	English