Posted By
MMS
on 2019-11-10
16:03:06
 |  Re: An article about 6502 and Commodore
Hi Litwr,
It was a very nice read! It is very detailed and contains a lot of interesting info I did not know beforhand.
So it is a great article, so the usual high quality material from you! 
You mentioned the 10MHz possibility of 6502. Actually the CMOS and HMOS was a much less energy efficient production technology, than even what indutry has in the late 90s.If you increase the frequency, the CPUs inner parts overheat (andI think this is what we see in 8501s' high ratio defect)
I am just curious, if the 6502 structure fully revealed (it is, I saw some Xray photoes), would it be possible to produce (clone) is with eg "ancient" 65nm process, that would make wattage very low for such a processor. It meand, with a proper cooling, it could go up to some hundred MHz without frying it. MOS is not existing any more.
Or the design (type of the gates) need to be modified/upgraded to able to keep up with the clock? Certainly I do not speak about prefetch and command pipelines, like in case of eZ80. (I am really not a HW expert)
|
