Then, I'd like to have a look at the videl.
My aim would be to :
1) have a working videl (HBL, VBL, TIMERS, correct display, "Rasters
:)", ...)
2) be able to use the videl "bean position" to do precise measures (as
you do with the shifter with the Video_GetPosition(),
Video_Calculate_adress(), ... functions).
I would like to run 10 NOPs and read the beam position, then compare
with my real falcon and get the same value (or close).
Then I could measure all the instructions and verify is they're using
the good cycle timings. (10 ADD, 10 DIVS, 10 MOVEMS, ...)
(10 is an arbitrary value, it could be 1 instruction, or 1000
instructions).
The same after for some crossbar exchages if necessary.
This wouls also allow to add correctly the VIDEL Waitstates.