I have been investigating the NMS 8280 video capabilities.
My plan is to write a customized Turbo Pascal program for overlaying video
with nice graphics generated by the MSX.
The command SET VIDEO in Basic is not enough to manipulate the super impose
facility, (it is used in the Pascal include files on the webpage by MAnual
Bilderbeek.
it requires working with I/O addresses F6 and/or F7. I have the V9938 manual
and am aware of the functions of register 9 S0 and S1 bits for external
synchronisation
Some info is in the 8280 manual
Who can explain how the I/O addresses F6 and/or F7 are to be handled?
Hans
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