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16/64 Color Graphics Modes (Mode 10)
These modes support graphics in 16 colors on either a medium or
high resolution monitor. The memory in these modes consists of
using all four bit planes. Each bit plane represents a color as
shown below. The bit planes are denoted as CO,C1,C2 and C3
respectively.
co
=
Blue Pels
C 1
=
Green Pels
C2
=
Red Pels
C3
=
Intensified Pels
F our bits (one from each plane) define one pelon the screen.
The color combinations are illustrated in the following table:
I
R
G
B
Color
0
0
0
0
Black
0
0
0
1
Blue
0
0
1
0
Green
0
0
1
1
Cyan
0
1
0
0
Red
0
1
0
1
Magenta
0
1
1
0
Brown
0
1
1
1
White
1
0
0
0
Dark Gray
1
0
0
1
Light Blue
1
0
1
0
Light Green
1
0
1
1
Light Cyan
1
1
0
0
Light Red
1
1
0
1
Light Magenta
1
1
1
0
Yellow
1
1
1
1
Intensified White
The display buffer resides at address AOOOO. The map mask
register of the sequencer is used to select any or all of the bit
planes to be updated when a memory write to the display buffer is
executed by the CPU.
Color Mapping
The Enhanced Graphics Adapter supports 640x350 Graphics for
both the IBM Monochrome and the IBM Enhanced Color
10 IBM Enhanced Graphics Adapter
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