Atari 800 - Page 265

CHAPTER 9.
AlARI GRAPHICS & SOUND
Introduction
In this chapter, we will provide an overview of the various
graphics and sound capabilities that are available in Atari
BASIC.
The following commands are used to create graphics in Atari
BASIC:
GRAPHICS
COLOR
DRAWTO
LOCATE
PLOT
POSITION
PUT/GET
SETCOLOR
XIO
These commands will be discussed in the following sections.
GRAPHICS
The GRAPHICS command is used to select one of the 9 graphics
modes available in Atari
BASIC. GRAPHICS is used with the
following configuration,
GRAPHICS X
where X is a real numeric constant, variable, or expression which
when rounded evaluates to a positive integer.
Generally,
the GRAPHICS statement will clear the video display
upon execution. However, by adding 32 to the value of X, this
display clearing
function will be disregarded.
GRAPHICS 0
The characteristics of the various Atari graphics modes are given
in Table 9-1.