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- Subject: Re: Protocol Specification in Lua
- From: Petr Štetiar <ynezz@...>
- Date: Sat, 2 Oct 2010 09:33:04 +0200
John Passaniti <firstname.lastname@example.org> [2010-10-01 14:53:18]:
> The generation of code from the protocol description isn't driven by a
> fear of the efficiency of Lua. It's driven by the fact that I don't
> think Lua is going to be running on a 8-bit Freescale HCS08
> microcontroller running at 24MHz anytime soon. And the larger
> platform the C code targets is a ColdFire that has about 16k of RAM
> left over and about twice that in ROM. Yes, I'm one of those embedded
> systems guys who hangs out in this mailing list to remind everyone
> that while Lua can go lots of places, it can't go everywhere.
It's a shame, you couldn't use Lua directly. Otherwise is quite easy and
comfortable to send just compiled Lua table along with checksum over the UDP.
In the short something like <size><bytecode><crc> in the packet. Imagine, that
the Lua tables can contain functions, so the possibilities of such protocol
Back to your subject. I would take a look at Metalua, using it, you can easily
generate your C protocol parser code for the Coldfire just by parsing your
protocol specification in Lua.