Re: 65C02 emulation

[Mark McDougall <msmcdoug@no.spam.iinet>]

aiiadict@gmail.com wrote:

> If the 6502 is taken out of the FPGA, we've got plenty of room
> left for new peripherals, plus maybe cache/slowdown logic
> for interfacing to the fast CPU.

Ummm, have you emulated a 6502 in an FPGA lately?

Because the 6502 takes 787 logic cells, where-as the whole Apple II takes is 
in the order of 1644 cells. The 6502 is 6.5% of an EP1C12 - which is a 
relatively small FPGA!

So you won't save much putting that in an ARM!

<http://members.iinet.net.au/~msmcdoug/pace/platforms/platforms.html>

Regards,

--
|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"