On Thu, Oct 30, 2008 at 6:21 PM, Igor Stasenko
<siguctua@gmail.com> wrote:
2008/10/31 Eliot Miranda <eliot.miranda@gmail.com>:
> Hi All,
> I wonder if anyone has any 32-bit processor implementations, either in
> Smalltalk or in some other, preferrably easy-to-parse, formal semantics. In
> implementing the new JIT VM I would like to continue developing in Smalltalk
> using VMMaker/Slang, but this implies having a processor simulation in
> Smalltalk to produce actual machine code for. Ideally this would be an x86
> of some description (doesn't need to be bang up to date, 386 would be fine).
> I'd also welcome an ARM.
> TIA
>
To my knowledge, Exupery is the only project which dealing with assembly code.
There are some mechanisms to define instructions.
I understand that. But I'm not too interested in code generation (I can write this myself or adapt other code). What I need is a processor simulation to generate code for, preferrably a clone of an x86, one that executes its own instruction set. Then I can test the JIT in Smalltalk.
I believe Peter Deutsch write a 68000 simulator when he implemented PS, the first Smalltalk-80 JIT, but I could be wrong and perhaps he only implemented an assembler for the 68000.
>
>
--
Best regards,
Igor Stasenko AKA sig.