[B2-devel] SheepShaver: new cpu core

[Gwenole B. <gb...@di...>]

Hi,

I finally wrote a new PPC emulation core (kpx_cpu) last week. It's derived
from Microlib's, Christian's, psim altogether. ;-)

<http://gwenole.beauchesne.free.fr/kheperix/>

Only interpretive emulation is available now. It's 15% faster than 
microlib's (in real addressing mode too). It's even more accurate insofar 
as I can now complete the N-queens test from ssbench.

TODO:

- Fix FPU emulation bugs on x86.

- Integrate into SheepShaver. Right now, testing is done with
Linux/ppc/dietlibc binaries, namely some ssbench benchmarks.

- Implement a predecode/predecode+refine cache. The framework for the 
refine trick is already in place and it would be enough to instantiate 
more templates. This is important before implementing a JIT specific to 
some architectures.

If someone is willing to proofread the core (simple but boring), you are
welcome. ;-)

Bye,
Gwenole.