From: Roman Suzi <nuser AT rsuzi DOT pgu DOT karelia DOT ru>
Newsgroups: comp.os.msdos.djgpp
Subject: Runtime code generation ques
Date: Fri, 07 Nov 97 21:48:35 +0300
Distribution: su
Organization: unknown
Message-ID: <AB3AsOqa-C@rsuzi.pgu.karelia.ru>
Sender: news-service AT sampo DOT karelia DOT ru
Reply-To: nuser AT rsuzi DOT pgu DOT karelia DOT ru
Lines: 40
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

Hello, all!

Possibly someone know the answer.

I want to make numerical computation program (matrix computations)
under DJGPP (I consider it as most suitable choice under DOS).

To add more flexibility I wanted to add formula interpreter
(or slightly more than it) to my program to be more flexible.
But interpretation is (5 times as) bad inside nested loops and I
thought about better thing: runtime compilation.

The scheme must be as follows:
text string converts (at run-time) to
its 32bit machine code representation.
Then I can just call the procedure by pointer.

Does anyone know if such mini-compiler is available for DJGPP (C/C++)
in some of the libraries/packages?
If not, any Unix C/C++ libraries? (In this case I will try to port it)

The built-in compiler doesnt need to be full C/C++.
Just int and floating-point math, loops, ifs...

The re-compilation (+DLL) scheme is not good
for my case (too many things for user to have).

Thank you for any suggestions.

Roman.


P.S. Isn't it an interesting problem?

--
 --               *                            --
--  Roman A. Suzi * Petrozavodsk Karelia Russia --
 --    http://sampo.karelia.ru/~rnd            --