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PCI phased out? (Announce)

posted by marcov, 16.02.2011, 15:38

> > Of course not. One can use old software ad infinitum.
>
> But you can change application data format to be incompatible with previous
> version this will isolate the user with old SW and after some time he will
> be forced to buy new SW+HW.

Then change it to subscription based, so that a devel extra gets money for old versions, and see how many subscribe.

> Microsoft can teach us :)
The Microsoft situation was extreme because they could allow themselves things normal vendors couldn't, due to OEM situation and the fact that gigantic amounts of new users came to the market in the 1995-2002.

But the problem is general, not just Microsoft. Even if money is not a factor this happens. Because there are also other interests except money to push software forward.

> > Yes, and in other extreme cases it is twice as fast (as e.g. AES
> > encryption). So what?
>
> 2x fast only due to 64bit if used same MMX/SSE insctructions both on 32bit
> and 64bit CPU?
AES is a special case because it requires a fairly hefty 64-bit integer calculation. IIRC SSE has no 64-bit integer. Only the 64-bit ALU has. (well and the FPU has comp, bu not logic operations)

> > IMHO there are no taboos here.
>
> Of course not. But I also don't go to linux forum and tell them that e.g.
> linux on desktop is a nonsense because Windows have more intuitive GUI and
> generaly rules on 99% desktops...
If a related subject comes up I will. And if some parrot means to speak out the cliche "this is the year of the Linux desktop", I'll be the first to remember him of the fact that that is like the 10th or the 11th year in a row that was declared the year that Linux would make it onto the desktop.

> > Multiple pipes multiple instructions per clock. 60 afaik is halfway
> > between pentium and ppro (in philosophy, not in performance. It is a low
> > clocked pentium in performance, and more)
>
> I didn't want to compare their performance just point that 8-bit HW (C64,
> ZX...) are much easier than PC.
Well, you target one specific PC. And for PC high frequency silicon is already available, exempting you from the most difficult task. But the problem will also be which PC you exactly are going to emulate. For newergames you want high freq and fast graphics, while for old games you want a perfect timing emulation.

> Also the strictly HW standard of these
> computers is big advantege for programing kernel and drivers. PC is generic
> glued from many different parts so it's not such easy...
Well, but you have modern commercially available parts. SLightly older ones (and thus with better known spec) even in the industrial market.


> Yes. We do usually 4 for prototypes and send it to local PCB manufacturer
> simply because he is fast. If I send it to china I will see my board after
> ~3 weeks. We send there thousand batches.
>
> I personally did only 6-layer with TQFP144 (0.4mm pitch) CPU and BGA 121
> GSM module, still much less than real mobo. But now we are started to use
> microvias (LASER drilled) that helps the design a lot...
We only do about 50 devices a year. It is an auxilery I/O and control board where the main parts are bought.

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