| [Web] Coldfire prototype, pics | ANN.lu |
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| Coldfire prototype, pics : Comment 44 of 67 | ANN.lu |
| Posted by Oliver Hannaford-Day on 27-Jun-2003 21:14 GMT | In reply to Comment 42 (cv643d):
Hi,
> If i didnt post it you wouldnt have seen it.
Unless you visited amiga-news.de with-in the last week, or joined the ColdfireAmiga newsgroup on Yahoo. ;-)
> Amiga hw is aging fast and dying.
> All the classic amiga hw is running
> way past the intended life span already.
True but there are a lot of Amiga's still in use and would you really want another new Amiga motherboard?
>I really hope the production boards are blue, as well,
> because that PCB looks great ;)
Nice isnt it :-)
>I am however having trouble with motorolas site to
> find out how fast these processors go in MHz.
www.motorola.com/coldfire/
however some browsers (Like mine) dont display the navigation bar :-(
The V4 goes to 220Mhz, 333Mhz chips are in development and news is ment to be published soon on a V4e chip with extra's built in.
> does it emulate some instructions, only -
> or does it emulate a whole 68k CPU?
It creates a virtual 68K using instructions in the Coldfire combined with the few emulated ones, so to answer your question its just emulates some instruction.
>How about compatibility with old software?
It should be very compatiable with almost all software.
>How about Price/Performance compared to the existing PPC solutions?
Depends on how much difference the SDRam interface make otherwise there will be very little difference between PPC and Coldfire on the A1200, on the A4000, well that should be much cheaper but just as fast.
Also it depends if you run lots of 68K programs on your PPC solution, if so then the Coldfire should be much faster...
>Will there be a JIT ?
Its an error based emulator, if the Colfire fails due to the instruction not existing the emulator will have a look and see if its a 68K instruction and if so convert it to a Coldfire version.
> This looks like a complete little computer by itself!
> Add some kind of display support and you have a stand-alone computer!
Thats the Coldfire for you, its a cool little chip.
> Perhaps it would make it better on "the market"
> as a stand-alone computer than as a CPU upgrade for
> classic Amigas?
Naa, to many of them already. (Amiga wise)
> Why don't you talk to Jeri and license her "Super VIC"
Ermm... Im just doing a CPU upgrade, other things may come latter but its best not to think about them until this is finished.
> How feasible is it though hardware tech heads?
Totally :-)
> will it support vm, mp, (smp), stuff.
The V4 wont support VM, MP should just fine, The V4e and V5e would support VM and all that sort of thing though.
> but what is the possibility of adding a PPC to the accelerator
> in the same mould as a CSPPC?
It could be done but with OS4.0 not using the 68K would it be a good idea?
The Shark could be added though, if you had PCI slots.
> why not create a coldfire based "amiga" PDA?
Because I want a Coldfire Amiga :-)
A PDA could be done if enough people bought the Amiga upgrade but thats a long way to think, The Coldfire could do it though.
Anyway any questions e-mail me. (Address above) |
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