Re: Apple II Accelerator Project

[frankc <frankc@NOSPAMsrv.net>]

> Yeah, I think the 66MHz 486 is a good bet.  IMHO, these GHz processors are
> overkill, and a GHz IIe would be doubly so!
>
> How are you planning to have this accelerator work in conjunction with Apple
> II software?

I am looking into using a 6502/65816 emulator core that would run under a bare
bones bios on the processor.  I would most likely have to emulate the CPU signals
(clocks, address/data lines, etc.) using buffers and/or programmable logic
chips.  I most likely will use some interrupt hardware to tell me when to update
the clock signal.  My first goal, however, would be to create an interface that
will allow me to do simple I/O while still maintaining the refresh signal on the
RAM.  Once I have that complete I can start looking into converting a 6502 CPU
core for use on the system.  I had thought about using a pre made CPU board, but
figured that would probably be to expensive a purchase.

Thanks for the inquiry,
Frank