Comparing the debugging results from Tops10 703 with 704 I decided to switch the test code base to D8RINT V016 and Tops10-703 since this version combination is closer to the original, of which Timothe reported it had run, and because with one code patch, of which one can be reasonably sure that it may be correct, the whole system gets more closer to the operational state and consequently more (register) DMR device interaction is seen.
So it is also becoming closer to a case in which potentially wrong or unimplemented expected DMR behavior may start to influence a possible cause leading to the next perceived crash. At least on a preliminary glimpse, there seems to be some bits put in the DMR registers where there is no definition for in the Simh code base, but it still early in the debugging process an this can be seen wrongly. Needs a lot more of debugging and code tracing with venerable (E)DDT .....
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