Tandy 1000 SL Technical Reference Manual page 536

BIOS Services
Set Color Palette
Select the color palette.
Entry Conditions
AH
=
OBH
BH
=
0: Set background color (0-15) to color value
BL
=
colorvalue:
in BL.
1
= blue
5 = magenta
9
=
lightblue
13
=
light magenta
2
=
green
6
=
yellow
10
=
light green
14
= yellow
3
=
cyan 7
=
light grey
11
=
light cyan
15
= white
4
= red
8
=
dark grey
12
= light red
or
BH
In black and white
modes:
BL
=
0: 1 for white
BL
=
1 :
lforblack
In
4
color graphics modes:
BL
BL
In 16 color graphics modes:
=
1: Set default palette to the number (0 or 1) in BL.
=
0:
=
1:
(1
=
green, 2
=
red, 3
=
yellow)
(1
=
cyan, 2
=
magenta, 3
=
white)
1
= blue
5 = magenta 9
= light blue
13
=
light magenta
2
= green
6
= yellow
10
= light green
14
= yellow
3 = cyan
4
=
red
Note: For alpha modes, Palette Entry 0 indicates the border
color. For graphics modes, Palette Entry 0 indicates the border
and the background color.
15
=
white
7 = light grey
8
= dark grey
11 = light cyan
12
=
light red
15.