Re: Apple clone on an FPGA

[salfter@salfter.diespammersdie.dyndns.org (Scott Alfter)]

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In article <cOednSrdQ5ehqyTfRVn-rQ@comcast.com>,
Alex Freed  <alexf@mirrow.com> wrote:
>Many years ago I made an Apple ][ clone. Maybe I'm getting soft in the 
>head, but this year I did it again, with a twist. Everything including 
>the CPU fits in a single FPGA with room to spare.
>
>What works so far:
>100% hardware emulation of an Apple ][ plus cycle accurate.
>Read nibblized images of floppies made for software emulators.
>Boots ProDOS from a Compact Flash card with an image of a hard disk.
>Uses a VGA monitor. Had to double the pixels to accomodate the scan rate.

I have a IIe and a IIGS connected to a refrigerator and a freezer with a
little bit of custom hardware, serving as programmable temperature
controllers that keep my homebrew temperature-controlled from fermentation
to serving.  I've considered building some sort of custom 6502-based
hardware to do the same job, but something like this would reduce the
software-porting effort from "minimal" to "zero" while still allowing the
system size to be shrunk down drastically.  Is this core available
someplace, and what would it take to get up to speed on using it if you've
never done anything with FPGAs before?

  _/_
 / v \ Scott Alfter (remove the obvious to send mail)
(IIGS( http://alfter.us/            Top-posting!
 \_^_/ rm -rf /bin/laden            >What's the most annoying thing on Usenet?

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