Your result's are based on the Original OSI 600 REV. D, not the remake, did I read that correctly?
if so then we need some folks who built the REV. D remake to compare notes.
Thank you for running the test.
Your result's are based on the Original OSI 600 REV. D, not the remake, did I read that correctly?
Thanks for testing! It's good to hear that the original RevD works. Anyone with a clone want to try?
we are only using 8T28's on the 600 REV. D.
once written (as far as I remember), they dont change, for instance, if Steve is writing 15 to all the memory locations then instead of the colour associated with 15 being set, it will be some random colour (like the random number the program generates). Once written it does not randomly change. it's the value when written that gets messed up. Steve can confirm, but pretty darn sure that is the case.MK14HAK wrote: ↑Fri May 10, 2019 2:32 am Hold the phone... This is weird, today I am getting the same problem. Hi nibble is constant $D but lo nibble is now random. I thort it may be the BASIC program and tried a few variations but now still have errors.
Using the Cegmon monitor and tabulating memory repeatedly: TD7A0,D7FF shows random read errors!
Starts to look like a timing issue? Steve are seeing colour changes at random after you have filled all memory with the one colour?
Correct. Some bytes are written with the wrong value and to the wrong location, but they do not change when no longer writing to colour memory.waltermixxx wrote: ↑Fri May 10, 2019 3:47 amonce written (as far as I remember), they dont change, for instance, if Steve is writing 15 to all the memory locations then instead of the colour associated with 15 being set, it will be some random colour (like the random number the program generates). Once written it does not randomly change. it's the value when written that gets messed up. Steve can confirm, but pretty darn sure that is the case.MK14HAK wrote: ↑Fri May 10, 2019 2:32 am Hold the phone... This is weird, today I am getting the same problem. Hi nibble is constant $D but lo nibble is now random. I thort it may be the BASIC program and tried a few variations but now still have errors.
Using the Cegmon monitor and tabulating memory repeatedly: TD7A0,D7FF shows random read errors!
Starts to look like a timing issue? Steve are seeing colour changes at random after you have filled all memory with the one colour?