Journey To The Center Of Your Screen - Tandy Color Computer 3 Manual

Using
the
Display
The
last lines of
your
program appear on
the screen
for
you
to
check.
They
should look
like this:
110
A$=INKEY$:
IF A$ =
"
THEN 110
120 NEXT
N
130
PALETTE
CMP
140 END
150 FOR R=0 TO
15
160
PALETTE
R,
(N*16)+R
170 NEXT
R
180 RETURN
190 PALETTE
CMP:
END
If
you
find
any
mistakes, retype the
line,
beginning
with the
line
number. Now,
type:
RUN (ENTER)
Your
screen displays
16
color-bars
on
four
different
screens.
To
move
from
one
screen
to
the
next,
press
any
key.
The
fifth
time
you
press a
key, the
program
ends.
However, you can
RUN
the
program
as
many
times as
you
wish.
Use
the color
adjustment
controls
on
your
television or
composite monitor
to set the colors
to their
proper
hue.
The
RGB
monitor
does
not require color
adjustments; simply
adjust the contrast
and
brightness
if
necessary.
Journey
to
the
Center
of
Your Screen
This next
program
helps
you center your computer
display
on
the
screen. Type:
NEW CENTER}
10
WIDTH
32
fENTER)
20
CLS
(ENTER)
30 FOR
X
= TO
63
(ENTER)
40
Y
=
15
(ENTER)
50
RESET
(X,Y) (ENTER)
60
NEXT
X
fENTER)
70 FOR
Y
= TO
31
(ENTER)
80
X
=
31
(ENTER)
90
RESET
(X,Y> (ENTER)
100 NEXT
Y
(ENTER!
110 GOTO 110 (ENTER)
To check
for
errors,
type:
LIST fENTER)
19