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Old 06 August 2017, 17:35   #4
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 46
Posts: 24,737
No, it has never acted as real hardware (without accurate A500 mode), only difference was that previously "default" was FF, not 00 as a side-effect of memory related change (but neither are correct)

I don't usually add workarounds for system friendly programs that do bad things and this is quite bad thing (What you get isn't even random, at least when having 68000 CPU you get whatever CPU prefetched previously = static values!). It would have been much better idea to read the actual CIA timer register. (Accessing BFExyz where z bit 0 is clear: Enable CIA-A, CIA-A drives bits 8 to 15 of data bus but code reads bits 0 to 7 which is not driven by any chip)

I can change it back to FF but there probably is another bad program that don't like it..
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