RE: Cinematronics CCPU on Xilinx FPGA

Hey Chris,

Just in case you have more time these days than I do, it will synthesize
into a pretty small part (think spartan II < 100k gates, 50k IIRC). I had a
nice simulation running (starhawk roms) but mine hangs up after about 130 ms
or roughly a couple of full frames of drawing vectors (PITA debug). I agree
that Zonn's simulator is usefull for getting started and so is his
disassembler.

Omar

> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Chris Leyson
> Sent: Monday, April 06, 2009 8:32 PM
> To: vectorlist@vectorlist.org
> Subject: VECTOR: Cinematronics CCPU on Xilinx FPGA
>
> Hi everyone, I'm a new member to Vectorlist and joined
> because I don't have any vector games.
>
> I found a few old scope CRTs recently and thought I'd build a
> CRT clock, decided it would way too dull and a lot more fun
> with a few vector games :) After a bit of searching I
> discovered the Cinematronics 12-bit CPU.
>
> Not too difficult to put onto a small fpga I thought, and I
> could have a CRT clock as well. After a few brief emails to
> Zonn I got started. So far the CCPU schematics have been
> turned into VHDL and most of the opcodes have been tested.
>
> Zonn, your CCPU simulator was a life saver, without it, I
> would probably still be debugging the sequencer.
>
> Assembly code for testing has all been hand crafted so far,
> so it's slow going, I still have to test all of the jump and
> branch instructions. That reminds me, does anyone have a
> working CCPU assembler or source code ?
>
> Next step is turn the VHDL into something that can be
> synthesized and eventually end up on some silicon :)
>
> My thoughts on the CCPU: I like it, it's cute but quirky. A
> nice design considering how much logic it uses.
>
> Well, I must sign off now and put the spacewars roms into
> block ram, then simulate until it stops somewhere :)
>
> Best regards
>
> Chris Leyson
>
>
>
>
>
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Received on Mon Apr 6 21:15:38 2009