Re: [B2-devel] Re: [B2-devel] B2+SS=?

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

Hi,

> On Mon, Dec 04, 2000 at 07:55:38PM +0100, Gwenole Beauchesne wrote:
> > Talking about PPC Emulation, I realized when I finally set up a PPC
> > cross-compilation system that PSIM was only twice as slow as UAE on the
> > benchtest program that comes with PSIM.
> 
> Hm... Makes me wonder how fast it can get just by throwing out unnecessary
> stuff (memory management).

For what it worth, here are the configure options I used for the fastest
PSIM build I ran:

--enable-sim-cflags="-g0 -O2" \
--enable-sim-decode-mechanism=padded-switch \
--enable-sim-icache=1024 \
--enable-sim-filter="-f 64" \
--enable-sim-inline \
--enable-sim-bswap \
--enable-sim-endian=big-endian \
--enable-sim-model=MODEL_ppc604 \
--disable-sim-model-issue \
--disable-sim-regparm \
--disable-sim-smp \
--disable-sim-jump \
--disable-sim-monitor \
--disable-sim-stdcall \
--disable-sim-xor-endian \
--disable-sim-trace \
--disable-sim-assert

Yes, the "padded-switch" implementation yielded better results than a
direct threaded core on my K6-2...