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Sample Level II Program
Example #3 (cont.)
It is helpful to understand the format of the INPUT command, the use of CLD (Clear User
Display) and SUD (Set User Display) to overlay text on the screen, and the use of RECALL and
STORE to manipulate Registers to be able to follow this program. The other commands used
here are fairly "simple" commands, so this program is moderately easy to understand. Here is
the program in an format as it might be made by a programmer for a compiler:
Menu:
765 Search
5 Recall
Ignore:
4 Input
CLD
4450 Search
CLD
5619 Search
CLD
6700 Search
Then, Example #3 in "RCU entry" format:
Address
0
1
3
5
7
11
15
19
23
29
30
32
34
36
38
F-8
TP 114 v. 1.1 • 8/92
SFM
1 Aud1
0 Aud2
5 Recall
; Setup Registers 5 - 8 with Text addresses
100 Store
120 Store
CLD
3 SUD
Ignore Branch
5117 Autostop
6570 Autostop
7820 Autostop
Ignore Branch
Arg.
Command
SFM
1
Audio1
0
Audio2
5
Recall
100
Store
120
Store
140
Store
160
Store
00765
Search
CLD
5
Recall
3
SUD
4
SUD
5
SUD
6
SUD
Sample Flow Chart & Level II Code — RCU Entry
; Set Frame Mode
; Use Audio 1 only
140 Store
160 Store
4 SUD
5 SUD
Menu Branch
Menu Branch
Menu Branch
RCU Input
*, 8, E
1, Audio1
0, Audio2
5 Recall
100 Store
120 Store
140 Store
160 Store
00765 Search
*, 2, C
5 Recall
3, *, 2, B
4, *, 2, B
5, *, 2, B
6, *, 2, B
; Show background frame
6 SUD ; Put up Text
; Key 0, ignore it
; Key 1, Segment #1
; Key 2, Segment #2
; Key 3, Segment #3
; Keys 4-9, ignore
Comments
Set Frame Mode
Turn on Audio 1
Turn off Audio 2
Point to Register 5
Line 3 text address in Reg 5
Line 4 text address in Reg 6
Line 5 text address in Reg 7
Line 6 text address in Reg 8
Menu Background Frame
Clear Character Overlay
Display Line 3 text
Display Line 4 text
Display Line 5 text
Display Line 6 text
Appendix F
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