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Atari XL User Manual

Atari XL
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106 The
Atari
XL
Handbook
the
screen
colour
we
use
the
SETCOLOR
command
to
alter
the
contents
of
register
2.
The
sixteen
colours
from
which
we
make
our
choice
are
represented
by
code
numbers
0 to 15, as
shown
in
this
table:
CODE COLOUR
0
GREY
1
GOLD
2
ORANGE
3
RED
4 PINK
5 VIOLET
6
PURPLE
7 LIGHT BLUE
8
DARK BLUE
9 BLUE GREEN
10
BLUE
11 DARK BLUE
12
GREEN
13
DARK GREEN
14 OLIVE GREEN
15
ORANGE
XL
Colour
Codes
The
actual
colour
displayed
depends
on
the
third
parameter
in
the
SETCOLOR
command
luminance.
This
controls
the
brightness
of
the
colour
and
can
have
a
value
between
0
and
14.
The

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Atari XL Specifications

General IconGeneral
Release Year1983
CPUMOS Technology 6502C
GraphicsANTIC, GTIA
SoundPOKEY (4 channels)
StorageCassette tape
PortsCartridge
Operating SystemAtari BASIC
CPU Speed1.79 MHz
RAM64 KB

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