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Chapter Three • LD-V8000 Level II
3.4 Player Initialization
Since different videodisc players might initialize their internal parameters to
different settings, it is best to write programs that do not expect specific settings.
When possible, force the settings that you want. Make sure to test any that you
expect.
Some programmers will detect initial program load by finding a one in Register 0
when the program starts from program address 0. Loading a dump does not
change Register 0. Concerning all other parameters, be careful.
Although the figure below shows the expected behavior of some parameters, there
may exist peculiar circumstances where the expected does not occur.
Parameter
AUDIO 1/L & 2/R
Register 0 contents
Frame Display
Active Register Pointer
Character Generator
Figure 3-D
3-12
TP 114 v. 1.1
At Power On (at Run)
Both On (Both On)
1 (no change)
Off
0 (1)
Enabled
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At Program Halt
These
remain
in the state
they were in
before
HALT
Depends on
REG. A Status
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