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Sharp MZ-700 - Signal System of Color V-RAM

Sharp MZ-700
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4.4
Signal System of Calor V-RAM
Color information
of
the
MZ-700 is controlled in character units;
that
is, a 1-byte color information
table is assigned
to
each character displayed
on
the
screen.
A color information table
is
shown in
the
figure below.
07
Not
used.
06
G
I--
05
CHARACTER
R
r---
04
B
Os
Not
used.
0 2 G
I--
0 1
B
ACK
R
r---
Do
B
G
:G
reen
R
:Red
B
:Blue
CHARACTER
BACK
Color information tables are accessed
as
follows.
Col
or
1------------1
matrix
Sync
signal
Blanking
signal
R.G.B.
RF
Color
subcarrier
(3.54MHz)
Display address
0
6-04
0
2-00
Display address
Characters displayed are stored at addresses
$DOOO
to
$D7FF
of
V-RAM, and color information tables
are stored
at
addresses $D800
to
$DFFF
of
V-RAM.
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