8 sample programs – NEC PD17062 User Manual
Page 268
268
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PD17062
20.8 SAMPLE PROGRAMS
The following sample program generates a display shown below.
The RAM names of VRAM are defined as follows (tentative):
NEC
CH 02
.......
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C
H
0
2
Display on the TV screen
Column
Column
Row 0
Row 5
4
3
2
1
0
1
2
3
4
5
6
7
0
1
2
VRAM0
VRAM1
VRAM2
VRAM3
VRAM4
VRAM5
VRAM6
VRAM7
8
9
A
B
C
D
E
F
0
1
2
VRAM8
VRAM9
VRAMA
VRAMB
VRAMC
VRAMD
VRAME
VRAMF
VRAM map (BANK2)
V R A M 0
M E M
2 . 0 0 H
V R A M 1
M E M
2 . 0 1 H
V R A M 2
M E M
2 . 0 2 H
V R A M 3
M E M
2 . 0 3 H
V R A M 4
M E M
2 . 0 4 H
V R A M 5
M E M
2 . 0 5 H
V R A M 6
M E M
2 . 0 6 H
V R A M 7
M E M
2 . 0 7 H
V R A M 8
M E M
2 . 0 8 H
V R A M 9
M E M
2 . 0 9 H
V R A M A
M E M
2 . 0 A H
V R A M B
M E M
2 . 0 B H
V R A M C
M E M
2 . 0 C H
V R A M D
M E M
2 . 0 D H
V R A M E
M E M
2 . 0 E H
V R A M F
M E M
2 . 0 F H
; * * RAM SET * *