| From: | Alastair M. Robinson |
| Date: | 31 Aug 2000 at 19:03:10 |
| Subject: | Re: Amiga PPC UAE |
Hi Andrew,
>> Yes, but Basilisk II uses 68K emulation on a P133 and uses the CPU
>> natively on the 030/25. The point is that a P133 is sufficiently
>> fast that it's easily capable of emulating a fairly fast 68K
>> provided it doesn't have to emulate the custom chipset as well.
> Ah, but does your 030 have a gfx card? It may simply be that
>Basilisk seems faster because it has much faster gfx access.
Valid point - but I was taking that into account.
On my '030 I'm using 16-colour with a custom video driver which only
converts an eighth of the screen per frame.
I suppose I should do some real benchmarks on my '030/25, '030/50, and the
486/66, P133 and K6-II/500 at work - could make interesting reading -
especially for comparison with the JIT stuff if it ever filters through to
Basilisk.
> Heck, WinUAE is about 10x slower (cpu wise) then my 040 amiga, but
> scrolling a large 256 colour picture in multiview is much faster in
> UAE? why? Because winuae has the PC's GFX card, while my A1200 is
> stuck with AGA :)
I think you'd find the gap between AGA 16-colour and emulated 16-colour much
smaller - but again, valid point. (BTW, are you talking about WinUAE with
virtual P96 emulation? If so, the virtual driver might well be using native
x86 code to do the blitting - in which case it's not a fair comparison.)
> Plus, don't forget how slow a 25 mhz 030 is :)
How could I forget - 3 days to do an RC5 packet ;-(
All the best,
Windows: Next best thing to sand in your hard disk.
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