Re: Assembler in Lua?

[KHMan <keinhong@...>]

On 1/5/2011 10:26 AM, beo wulf wrote:
> Played with tcc before -- it's fast at assembling, but there's no
> optimiations for the assembled code (in particular, it pushes
> everything to the stack after every operation) -- i.e. -- the
> generated code is _NOT_ fast.

That's a good point -- many people (elsewhere) who jump into tcc 
think it's a mature compiler that can do everything they wish for 
and replace gcc in their lives. But tcc does have a built-in 
assembler (IIRC) -- perhaps it is a better starting point than a 
blank slate.

An assembler in Lua reminds me of those Forth assemblers...

For OSes that have NX-type settings disabled, calling and 
executing a data snippet is trivial, so it's real easy to start 
such a project, but a big job to write a fairly complete one. A 
thousand or so instructions, and a lot of those are useful for 
high performance. AMD just dumped another new instruction set into 
gcc the other day, more bit manipulation, and a lot of new mnemonics.

It's pretty niche and hard to drum up support for. Probably the 
main coder needs to do >99% of the work. This sounds like 
something they throw grad students at.

> On Tue, Jan 4, 2011 at 4:12 PM, Luiz Henrique de Figueiredo wrote:
> > > As for why not C ? C is fine, but I'd prefer to not write out a *.c
> > > file, call gcc, compile it to a *.so, and load it back in -- just
> > > something self contained.
> >
> > As suggested before, try luatcc.

--
Cheers,
Kein-Hong Man (esq.)
Kuala Lumpur, Malaysia