Re: C64 2 Mhz Hack
Date: 2001-02-25 20:50:25

Hallo allemaal,

I have two question that possibly fits in this discussion:
The SCPU uses its own memory to maintain maximum speed. But the the content 
has to be copied in some or another way to the original memory
- how is this done? Probably DMA?
- what range is copied and how does the mechanism know?

We already discussed replacing a non 6502 CPU by 6502 + Hardware. I prooved 
it can be done. Now to find a way to be able to use fast memory.

This triggered another question: the 65816 can run on 20 MHz. The SIMMs 
SCPU uses ar mostly of the 70 ns type. 20 Mhz means 25 ns cycles. How does 
that fit? Either someone is cheating or I missed something. I hope the last 
and that someone can tell the trick.

Groetjes, Ruud

This message was sent through the cbm-hackers mailing list.
To unsubscribe: echo unsubscribe | mail

Archive generated by hypermail 2.1.1.