IBM 3164 ASCII Manual page 141

Chapter 5. Programming considerations
5-54
Next, let's write a program for making a screen like the one shown below
which happens to be viewport type 8.
10
/11
24
C o l u m n _
1
VIO
(2)
VIO (1)
50 52
80
VIC (3)
•
In the vertical dimension, viewports
should occupy adjacent rows.
In the horizontal dimension, vlewports
should be separated by a column.
For viewport 1 :
For viewport 2:
For viewport 3:
Ov
=
10,
Ov
=
14,
Ov
=
14,
Wv
=
80,
Wv
=
50,
Wv
=
29,
(Rv
=
00,
(Rv
=
10,
(Rv=10,
Cv
=
00)
Cv
=
00)
Cv
=
51)
Use the ASCII Line Code Table on page 5- 79 to obtain the hexadecimal
values for ESC space r. Also use the Two Byte Parameter Table on page
5-82 to obtain the hexadecimal values for the three viewports. Your coding
should look like this:
1 B 20 72 28 21 20 2A 22 30
22 20 2E 21 32
23 20 2E 20 50
(