1.
Low resolution color graphics (TV or monitor). (Note: This
mode
is
not supported in ROM).
• Up to 100 rows of 160 pels each (2x2)
• 1 of
16
colors each pel specified by I, R, G and B
• Requires 8000 byte of Read/Write Memory (on the adapter) ,,-.....
• Memory mapped graphics (requires special memory map
and set up to be defined later)
2.
Medium resolution color graphics (TV or monitor)
• Up to 200 rows of 320 pels each
(lxl)
• 1 out of 4 preselected colors
in
each box
• Requires 16000 bytes of Read/Write Memory
(on the adapter)
• Memory mapped graphics
4 pels/byte
FORMAT:
7 6 5 4 3 2 0
C1
CO
C1
CO
C1
CO
C1
CO
I
First
display
pel
• Graphics storage
is
organized in two banks of
8000 bytes each.
Graphics
Storage
Map
Memory
Address
#0000
even
scans
(0,2,4, " "
"'
198)
(8000
bytes)
#1
F3F
#2000
odd
scans
(1,3,5, " "
"'
199)
(8000
bytes)
#3F3F
Address
#0000
contains pel information for upper left comer of
display area.
2-52
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