NEC CP/M-86 - Sample Data in Auxiliary CG RAM

Auxiliary Character Generator RAM Format
C-2
Figure
C-l is an example of the bit pattern of a graphic character.
1 234 5 6 7 8 9 ABC D E F
o
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0 0 0
o A 0
0
0:0
0 0 070,,"0
0
1
0
0
oro
0
0"1
O'
0
o ~ 0
0
o )
O·
0 0
0,,"0/0
O.
0 0 0
o "
v 0
0
o.
1 1
1
:
0 0 0 0
0 0
o.
0 0 0
o /1\... 0
0
o.
0 0
0/0,,\ 0
0:
0
o ./ 0
o "0
0
1
0
Vo
0
0
o "" O'
0 0
0
0 0
o'
0 0 0
0
0
O'
0 0 0
0 0
0
1
0
J--
0 0
0 0
H I 0
0 0
0 0
0 0 0 0
I
I
I
\
\
\
\
I
.f
,
0 0
0 0
0 0
0 0
Figure C-l Sample Bit Pattern of Graphic Character
0 0
0
0
0 0
0
0
08H,
OOH
14H, OOh
22H,
22H,
14H,
08H,
FFH,
08H,
08H,
14H.
24H,
42H,
42H,
42H,
42H,
C3H,00H
Figure C-2 demonstrates how the bit pattern in Figure C-l would be stored in
auxiliary
CG RAM.
RELATIVE
ADDRESS
o
2
4
6
8
A
C
E
IO
12
14
16
18
lA
lC
IE
DATA
08 1 00
14 1 00
22 i 00
22 I 00
14
00
08 I 00
FF : 00
08 I 00
08 i 00
14 • 00
24
1
00
42 -'- 00
42
00
42
00
42 I 00
- 20- - - - • 1 I 1 •
C3-,- 00
•
I ... Ie .1
• I I
BYTE BYTE
Figure C-2 Sample Data in Auxiliary CG RAM