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Author Topic: DRAGON ColdFire FAQ  (Read 4703 times)

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Offline System

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Re: DRAGON ColdFire FAQ
« Reply #14 on: January 14, 2005, 03:19:55 AM »
It doesn't say whether PCI IDE (ATA100/133) are supported or not.  I hope they are, as 133MBps is a darn site faster than 16MBps! :-D
 

Offline MaDDuck

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Re: DRAGON ColdFire FAQ
« Reply #15 on: January 14, 2005, 04:34:08 AM »
must...have....one!
Pity I just gave my A1200 to a friend! :(
Guess I'll have to wait for the A4000 one.........

BTW, what other products (vaporware?) have Elbox announced but never released?  They have a good rep, right???
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Offline lordv

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #16 on: January 14, 2005, 04:59:06 AM »
Don't be too enthusiastic about it. They've promised to sell it in the end of Jan, but still don't have any photos. Strange...


Another big doubt - the real compability of V4/V5 coldfire cores with 68k.

First, it has FPU incompatible with 68881/882/040/060 - so no more lightwave/etc.

Second, apart from heavy-trapped emulation (to what it lead, you can see running lightwave on 060 without oxypatcher), there are still fully incompatible commands - for example, some mul's (with 64bit result) just fail to trap and yield wrong result. Nothing to say about incorrect flags with mul's/div's and much more.

http://www.microapl.co.uk/Porting/ColdFire/Download/CF68KLib.pdf , page 25

There are no mentionings about real compatibility with 68k apps, they either haven't ever tested the prototypes or just have nothing to say. The best would be sharkPPC - as the correct JIT has more chances to emulate 68k fully and at higher speed.
 

Offline PMC

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #17 on: January 14, 2005, 10:01:39 AM »
Elbox's press department reminds me of Soviet-era Tass reports.  I can just see them releasing a black and white, heavily retouched photo of the Dragan in a couple of weeks :lol:

Seriously though, it's a very interesting piece of hardware.  I am torn between future PC upgrades and buying this, but my advice to myself is "wait and see".  I don't doubt Elbox's sincerity, as they were the ones who gave us PCI in the first place, along with the Power Tower, FastATA, PCI soundcards etc.  I've also found their support team to be good too.

What's put me off was the controversy about code in the SpiderUSB driver which could damage the RDB of your harddrive if a hacked version was used on an off the shelf PCI card.  There was also the controversy over P96 Voodoo drivers and the ongoing lack of info re OS4 and SharkPPC.  On one hand we have Elbox saying "we're waiting for the software" and on the other we have Hyperion saying "we've not been approached, OS4 won't work with the SharkPPC".

However, I'd love to have a 266Mhz '060 compatible CPU running on my Amiga.  It'll still be a tiny fraction of the power of my 2.5gig Athlon, but it would be many, many times faster than my 40Mhz '040 - provided that the new Coldfire is directly legacy compatible with '060 code, otherwise some of the performance may be lost with patched instructions etc.
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Offline ikir

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #18 on: January 14, 2005, 03:58:18 PM »
Elbox never announced any vapor yet.
 

Offline platon42

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #19 on: January 14, 2005, 04:15:35 PM »
> Elbox never announced any vapor yet.

Shark PPC http://www.elbox.com/news_00_10_12.html
(I think announcing a product for over four years definately makes it vapor)
eFlash 1200 http://www.elbox.com/news_03_06_13a.html
Drivers for MPEG-2 Decoder cards http://groups.yahoo.com/group/Amiga-Mediator/message/16683

BTW: For a product that's going to ship in about two weeks, where are some pics of the hardware? Pics of the hardware actually running?
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Offline x56h34

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #20 on: January 14, 2005, 04:29:35 PM »
Shhh! You'll wake up Tjaoz.
 

Offline System

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #21 on: January 14, 2005, 04:31:49 PM »
Quote
(I think announcing a product for over four years definately makes it vapor)


By that rule, OS4 is vapor too. ;-)
 

Offline platon42

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #22 on: January 14, 2005, 05:05:01 PM »
> By that rule, OS4 is vapor too.

Well, it has been seen running and there is a beta version. So there you can assume a nearly released product ;)
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Offline platon42

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #23 on: January 14, 2005, 05:07:51 PM »
> Shhh! You'll wake up Tjaoz.

Well, I guess that guy has found a new home for spreading his ridiculous conspiracy theories and lies on AmigaWorld (see "Apparently the A1XE/SE USB needs a HW fix" thread).
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hackerkey://v4sw7CJS$hw6/7ln6pr7+8AOP$ck0ma8u2LMw1/4Xm5l3i5TJCOTextPad/e7t2BDMNb7GHLen5a34s5IMr1g3/5ACM
 

Offline x56h34

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #24 on: January 14, 2005, 05:52:39 PM »
platon42:

Hehe, yep. I saw it too. Very funny indeed.
 

Offline jdiffend

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #25 on: January 14, 2005, 08:38:42 PM »
Even if they have a board that *appears* to be ok hardware wise they can't be sure till they have a working OS.   And trust me... they can't make it work without major mods to the current OS... and that takes time.
They might be fishing.  Just checking to see the level of interest in the product.
 

Offline jdiffend

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Re: DRAGON ColdFire FAQ
« Reply #26 on: January 14, 2005, 08:47:44 PM »
BTW, the MCF5475 has a built in PCI controller... so adding PCI slots would be easy with this chip.

AGP however is a modified PCI slot and I don't know how easy it would be to add the circuit to adapt the internal PCI interface to it.
 

Offline Rogue

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Re: DRAGON ColdFire FAQ
« Reply #27 on: January 15, 2005, 01:24:57 AM »
Quote
We all know what Hyperion's response will be: that they haven't recieved a Shark yet


Erm... Exactly.

Quote
Maybe they are planning on doing the hacking themselves?


Ah, yes, the "magic compatibility" story... They can't hack it themselves. Even if they'd manage to make it run, it would be highly illegal...
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Offline EntilZha

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Re: DRAGON ColdFire FAQ - photos, compability ?
« Reply #28 on: January 15, 2005, 01:30:18 AM »
Quote

By that rule, OS4 is vapor too.


Except that it actually exists, and is used by people out there (although just as a prerelease).
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Offline Rogue

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Re: DRAGON ColdFire FAQ
« Reply #29 from previous page: January 15, 2005, 01:30:54 AM »
Quote
A PPC CPU is a PPC CPU afterall.


Quite the contrary. The CSPPC and BPPC kernels lack the support for any other CPU but the 603/604. The Blizzard and Cyberstorm have unique interrupt controller logic. Plus, anything like that Shark would be a PCI card and I doubt it will have direct access to the custom chips. This will not run unmodified.

And even if they'd manage to build a complete Cyberstorm-Lookalike, the L2 cache and special features of a G3 (or G4) CPU would be unavailable, because, as I said, the classic kernels lack the CPU support for these, and the AmigaOne version will require an AmigaOne mainboard (complete with VIA southbridge, Intel interrupt controller and ArticiaS north bridge).
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