Re: [Sablevm-developer] ARM, S390 ready, m68k expected on monday - FYI: status

[Prof. E. M. G. <eti...@uq...>]

On Sun, Mar 23, 2003 at 10:32:28PM +0100, Grzegorz B. Prokopski wrote:
> I won't be posting my patches yet, but I'd just like to say that
> I already have SableVM working on s390 architecture (build by
> an autobuilders a few days ago) and arm (build today by me).

Great!  When you are ready, you can submit your patches using the
newly activated Patch Tracking System:
http://sourceforge.net/tracker/?atid=3D305523&group_id=3D5523&func=3Dbrowse

> Unfortunatelly it seems that for now we'll be stuck with 8 debian arches
> for some time because libffi is not available on the remaining 2
> (or some say 3) arches: hppa, mips and mipsel. The arch-specific parts
> of SableVM for mips and mipsel are ready [1].
> Hppa will require some more investigation to find out the needed
> assembler parts but it doesn't make much sense to start the effort
> before we have libffi for hppa.

We will eventually have to port libffi to these platforms.  If anybody
on this list already knows about calling conventions on these systems,
he/she is welcome to help!

> I think that the next step will be testing inlined-threading on
> non-x86 which, as Etienne experienced, won't be *that* plain easy
> as it seemed in the beginning.

One of the most important parts, for porting the inline-threaded
engine, is to test the inlinability of each bytecode.

To this end, I need a class written in bytecode assembly (e.g. Jasmin)
that does test every single Java bytecode.  It ould look something like:

[I'm using Java-like pseudo-code]

class TestBytecodes
{
  void test_NOP()
  {
    NOP
    RETURN
  }
  ...
  void test_IADD()
  {
    ICONST 500
    ICONST 18273
    IADD
    RETURN
  }
  ...
}


Ideally, the source file size would be kept to a minimum using
existing m4 macros (see src/libsablevm/macros.m4) or new ones (derived
=66rom macros.m4, if required for jasmin code).

Any volunteer to help?

Thanks,

Etienne
--=20
Etienne M. Gagnon, Ph.D.             http://www.info.uqam.ca/~egagnon/
SableVM:                                       http://www.sablevm.org/
SableCC:                                       http://www.sablecc.org/