Re: Code-Covertor from System C to Verilog? (Ramesh)
2 May 2004 22:00:22 -0400

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Code-Covertor from System C to Verilog? (2004-04-29)
Re: Code-Covertor from System C to Verilog? (2004-05-02)
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From: (Ramesh)
Newsgroups: comp.compilers
Date: 2 May 2004 22:00:22 -0400
References: 04-04-097
Keywords: translator
Posted-Date: 02 May 2004 22:00:22 EDT (Monika Talwar) wrote in message news:04-04-097...
> I'm writing converter -> SystemC to Verilog, Vera & VHDL.
> Can any body help me, how to start.

The current version of SystemC is a C++ class library for
simulation/hardware related classes and then free form C++.

Are you looking to (a) implement a functionally correct language to
language translation or (b) implement "synthesizer" of the hardware
implied by a SystemC description to the hardware description languages
such as Verilog ?

Both are quite non trivial;

(a) is doable and is perhaps somewhat more complex than writing a C++
to C converter; you might consider starting with a C++ to C converter
and some how put in a pass that converts the hardware specific class
instances to corresponding verilog, and then change the C converter to
be a Verilog converter (low level C and sequential (i.e., non
parallel) Verilog look pretty much the same so this is the "easy" part

Another approach to (a) might be to look at source to source language
translator tools such as Semantic Design's DMS, or TXL's TXL. Since
there is a C++ front to these tools you can then focus on the
conversion part of the problem.

(b) is doable but is a much bigger project than (a). to produce
something efficient a relatively narrow subset of the language will
have to be defined. You should look at the synthesis literature and
reconfigurable computing literature.
( is a project that does subset C to VHDL; addresses similar
issues in the compiler)

If this is some sort of a class/degree project you need to scale what
you will attempt down to something that is manageable and interesting.

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