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Author Topic: Have you seen this?? (Coldfire accelerator from elbox!)  (Read 6922 times)

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Offline Piru

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #29 from previous page: December 18, 2004, 01:13:58 AM »
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anyway the A1200 can use a 2mb rom

It can? There's only 1MB reserved for ROM in the 24bit address map though.
 

Offline Doobrey

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #30 on: December 18, 2004, 01:51:37 AM »
Quote

Piru wrote:
It can? There's only 1MB reserved for ROM in the 24bit address map though.

Well, according to the A1200 memory map...
A80000 to B7FFFF 1 MB   System ROM
E00000 to E7FFFF 512 KB   System ROM (second 1/2 if 1MB rom)
F80000 to FFFFFF 512 KB   System ROM (first 1/2 if 1MB rom)
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Offline Piru

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #31 on: December 18, 2004, 02:25:47 AM »
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A80000 to B7FFFF 1 MB System ROM

That's interesting. I remember Zorro II I/O space being somewhere within Axxxxxx area.

Ah... found it from the Hardware Manual:
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Memory space is the standard 8 megabyte space from $00200000-$009FFFFF. The I/O address space is mapped at $00E80000-$00EFFFFF, and a new 1.5 megabyte section (previously reserved for motherboard devices) from $00A00000-$00B7FFFF.


So re-using this address for ROM could conflict with some Zorro expansions at least.
 

Offline Karlos

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #32 on: December 18, 2004, 03:05:03 AM »
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B00tDisk wrote:
Absolute vapor.  Wouldn't trust the annoucement as far as I could throw the server it's hosted on.  There are apparently still significant problems getting the Coldfire to (properly) emulate the 68k instruction set (so I've heard).



Surely it's more flame-and-smoke than vapour ware?

OMFG, how lame was that?

*apologies*
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Offline Waccoon

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #33 on: December 18, 2004, 06:17:28 AM »
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KennyR:  But...but...but Ben Hermans of Hyperion said that all you have to do is change flags and recompile modules for the same endian processor!!!

Heh...  yeah, I'm sure they'll make a MIPS version, next, too.  :-)

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CyberStorm:  Considering the price of buying an 060 board and a Mediator, this seems like a cheap soultion, even if the USB, serial and fastEthernet is optional.

Who on earth would want them seperate, and keep their external clutter over integrated electronics?

AmigaOne was supposed to have 6 PCI slots, right?  How silly the idea seems these days.

Funny how this board will supposedly support something that all PCs have and no official Amiga has -- USB 2.0.
 

Offline Effy

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #34 on: December 18, 2004, 07:02:23 AM »
Waccoon : maybe funny but it was also Elbox who offered the driver for the Spider USB 2.0 card, not ???

Offline Karlos

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #35 on: December 18, 2004, 01:27:51 PM »
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x56h34 wrote:
It also seems to be compatible with A1200 only, for now. :-)

If it does come out, it would be a classic Amiga dream come true. It would also be bad for AmigaOne/OS4.0 sales, and would most definitely discourage some people from migrating to AmigaOne from the classics.


I dunno about that. Regardless of what they say, generic 680x0 code does not run on coldfire without some degree of modification / intervention. They would need a very effective (read Dynamo) style JIT to get 680x0 code running at full potential. A trap based emulation of missing instructions would be a poor affair.

Secondly, a 266MHz coldfire is unlikely to run coldfire compatible 680x0 code faster than OS4/Petunia on a G4.

If the card appears, and it works then it will definately be a 680x0 coder's dream, no doubt about that, but I don't expect it to compete in performance terms with G3/G4 PPC based solutions in real world tests.
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Offline Karlos

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #36 on: December 18, 2004, 01:45:26 PM »
Hey it just occured.

Someone is missing from this thread. If anybody knows tjaoz, I think they should check his place and make sure the milk bottles and newspapers aren't piling up...
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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #37 on: December 18, 2004, 02:51:26 PM »
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Karlos wrote:
Quote

x56h34 wrote:
It also seems to be compatible with A1200 only, for now. :-)

If it does come out, it would be a classic Amiga dream come true. It would also be bad for AmigaOne/OS4.0 sales, and would most definitely discourage some people from migrating to AmigaOne from the classics.


I dunno about that. Regardless of what they say, generic 680x0 code does not run on coldfire without some degree of modification / intervention. They would need a very effective (read Dynamo) style JIT to get 680x0 code running at full potential. A trap based emulation of missing instructions would be a poor affair.

Secondly, a 266MHz coldfire is unlikely to run coldfire compatible 680x0 code faster than OS4/Petunia on a G4.

If the card appears, and it works then it will definately be a 680x0 coder's dream, no doubt about that, but I don't expect it to compete in performance terms with G3/G4 PPC based solutions in real world tests.


I would assume that code compiled nativley for the coldfire CPU would before better than 68k code running on it.

In theory, one could compile userland AROS code as native coldfire code, and just have the bare minimum of the OS as 68k code.

Less performance hit then.
 

Offline Doobrey

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #38 on: December 19, 2004, 02:29:10 PM »
Quote

Karlos wrote:
Hey it just occured.
Someone is missing from this thread.


That`s cos this thread is already about Elbox, and not about a competing product from E3B or Individual Computers...
On schedule, and suing
 

Offline Dr_Righteous

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #39 on: January 02, 2005, 07:05:31 AM »
You know, even I have lost all faith in OS4/AOne. I seriously doubt OS4 will ever be released to the general public. Especially after being sold to some unknown company for a year before anyone in the scene was ever told about it. As far as I'm concerned, ColdFire processors and AROS are the future of Amiga. Screw PPC... 68k forever!
- Doc

A4000D, A3640 OC-36.3MHz, custom tower, Mediator A4000D. Diamond Banshee 16M, Indivision AGA 4000, GVP HC+8.

Mac Mini 1.5GHz, that might run MorphOS someday, when the fools who own it come to the realization that 30 minutes just isn\'t enough time to play with it enough to decide whether or not you like it enough to cough up $200.

 - Someone please design SOME kind of DIY accelerator for the A4000. :D -
 

Offline Effy

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #40 on: January 02, 2005, 09:47:50 AM »
Why being so negative about it ???  :-? Are you also so negative about the pci busboards for the Amiga´s too ???  :-? This is also not exactly native to the Amiga, is it ???  :-? But it´s a great step forward for our old machines, and anything that helps them forward is good in my eyes, the PPC cards, the Dragon, as long as there is support for and not too many wars between companies then why say no to it ???  :-? You should embrace this with open arm  :lol:

Offline fragment

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Re: Have you seen this?? (Coldfire accelerator from elbox!)
« Reply #41 on: January 13, 2005, 10:14:01 PM »
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