If I recall correctly, the ROR bug was cured in all 6502 chips with date
codes later than 2676. Mine is 1576.
-Bryan
Ethan Dicks wrote:
I remember references to those flaws in docs I was reading c. 1978 when I
first started learning 6502 machine language (not assembly... I was entering
the code into the computer in hex). Never seen one of the defective chips.
What's the date code on it?
-ethan