Home grown A1200 accelerator project

[AJCopland]

@alexh
$10k wouldn't cover wages but if it was someone, or some group, from the community doing it for the love it as the original poster probably mean't then wages wouldn't be such an issue.

You seem to know a little about this sort of thing, how complicated would reworking the CT60/63 for the A1200 be?

Andy

[AJCopland]

Because interfacing between a 68060 and the existing miggy buses etc etc is a solved problem that people know how to do.

The Transmeta/Intel/AMDx2 etc are totally impractical as replacement cpus due to radical differences in the buses requiring extensive bridge logic to allow them to communicate.

(from the little that I can remember / understand.)
(Also the Wii does NOT have shader hardware. I'd have replied to your thread on AW.net but I have no account there.)

Andy

[AJCopland]

alexh wrote:

AJCopland wrote:
You seem to know a little about this sort of thing, how complicated would reworking the CT60/63 for the A1200 be?

You really think Rodolphe will release the source to his 680x0 SDRAM controller?

The Falcon bridge in the CT60/63 looks quite a bit more complicated than the Amiga equivalent would be.

Release the source? No maybe not, it's worth something to him and he seems to have put a lot of effort into it. Maybe he would be willing to licence it for a reasonable fee per board though?

I'm only proposing potential options to humour the original poster and satisfy some curiosity :-D

If the bridge (I assume you mean the connector) is much more complicated then would it be fair to assume that the task of porting the CT60/63 design to an A1200 connector would be simplified? Or would it be complicated by the lack of those extra signals and lines available on the Falcon?

Andy

[AJCopland]

alexh wrote:

AJCopland wrote:
If the bridge (I assume you mean the connector)

Nope I mean bridge. The Falcon bus and the Amiga bus are not 100% the same as the 680x0 bus and some logic must live between the two.

Damn I really hoped you didn't mean a literal Bridge, might as well go for a full PPC chip if you've got to create a bridge to map between the two anyway. Didn't realise you were an ASIC engineer 'til I took a look at your profile :-)

I realise that no-one is likely to go ahead and create one, I'm just treating this as a mental exercise in the whys and wherefores ;-)

alexh wrote:

adonay wrote:
*edit* but for my own experiments and study i would like too obtain a few connector say 10x

I would imagine that Jen's wouldnt supply less than 100. Most companies dont make less than 1000 when it comes to injection moulded connectors. Ask him, he may have some lying around.

When I made my CD32 FastRAM addon I could only get 3x connectors (free samples) without paying a fortune.

I've just picked up a CD32 (and keyboard) did you release the design for your FastRAM addon?

Andy