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Texas Instruments TI-99/4A User Reference Guide

Texas Instruments TI-99/4A
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COLOR
subprogram
To use
CALL
COLOR
you
must
also specify to
which
of
sixteen
character
sets
the
character
you
are
printing
belongs.
The
list of
ASCII
character
codes
for the
standard
characters
is given
in
the
Appendix.
The
character
is
displayed in
the
color
specified
when
you use
CALL
Hf:HAR
or
CALL
VCHAR.
The
character·set·
numbers
are
given
below.
Set
Number
Character Codes
1
32·39
2
40·47
3 48-55
4 56-63
5 64-71
6 72-79
7 80-87
8 88-95
9 96-103
10
104-111
11
112-119
12
120-127
13 128-135
14
136-143
15
144-151
16
152-159
Note
that
all 24 rows
and
32
columns
are
filled
with
the
space
character
until you place
ulhcr
characters
in
some
of
these
positions.
If
you
use
character
set
1 in the
CALL
COLOR
statement,
all
space
characters
on
the
screen
are
changed
to the
background-color specified
since
the
space
character
i~
contained
in
set
1.
This
change
is
demonstrated
by
the
program
on
the
right.
11-74
Examples:
>NEW
>100
CALL
CLEAR
>110
CALL
CDLDR(1,16,14l
>120
CALL
SCREEN(13l
>130
CALL
VCHAR(1,15,35,24)
>140
GOTD
140
>
RU
t-.I
--screen
cLears
~~24
white
#'5
with
a
magenta
background
on a
dark-green
sCreen
#
#
#
11
#
1/
1/
II
1/
#
#
II
--Note
that
the
sCreen
coLor
appears
onLy
at
the
top
a
bottom
of
the
screen
(press
CLEAR to
stop
the
program]
User's Reference Guide

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Texas Instruments TI-99/4A Specifications

General IconGeneral
BrandTexas Instruments
ModelTI-99/4A
CategoryDesktop
LanguageEnglish

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