Catalina and VMCog

blittled

I just was wondering if Catalina supports VMCog for larger C programs.

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Will work for Propeller parts!

RossH

@Blittled,

No. Catalina runs fine executing directly from external memory (XMM). Catalina can access up to 16Mb XMM RAM directly, although I've not run any programs larger than about 2Mb myself.

In the recent benchmarking thread, Catalina has been shown to execute C from XMM at speeds quite comparable to executing SPIN from Hub RAM (only 50% slower in general, and I expect to improve on that over time). Maybe VMCog could do better in some cases, but overall I think it would probably end up slower on large programs.

However, I'd be perfectly happy for someone to add VMCog support to Catalina and actually find out. Should be relatively straightforward.

Ross.

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Catalina - a FREE C compiler for the Propeller - see Catalina

jazzed

RossH said...
However, I'd be perfectly happy for someone to add VMCog support to Catalina and actually find out. Should be relatively straightforward.

I'll be adding Cache support for SDRAM. The interface is TBD based on performance experiments.

Cheers.
--Steve

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Propeller Pages: Propeller JVM

potatohead

Re: Linux / Mac numbers. Many people use multiple OSes. I do, and it's all three. Sadly, I don't do anything propeller related on Mac. That's work and CAD only. Linux and windows see use though. I suspect that's true for a lot of people.

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