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Author Topic: in case you are interested to test new fpga accelerators for a600/a500  (Read 9852 times)

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Offline xboxOwn

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #14 on: March 21, 2015, 06:49:18 AM »
Quote from: Oldsmobile_Mike;786567
Specs sound decent.  Really looking for something that could do full 68040/68060 emulation.  I'd take a 100MHz 68060 over a 500MHz 68020, but am happy to see any new development.  ;)

Is 500 Mhz 68020 slower than 100 Mhz 68060? if they can make a 68020 run at 500 Mhz, why can't they make a 68060 run at 500 Mz instead or even 1 Ghz?
 

Offline Lurch

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #15 on: March 21, 2015, 07:11:30 AM »
Quote from: Oldsmobile_Mike;786569
I think the only thing Amiga-related that I ever backed, that I got totally screwed over on, was that coupon & shirt deal.  What was that, about 2003?  2004?  I still want my damned shirt, lol.  :lol:


2003? Can't remember, haven't lost money yet touch wood. Love for this card to be real a 500MHz A500? Yes please.

Although building 2MB chip into it would be great then I don't have to worry about fixing my A500 plus.
-=[LurcH]=-
A500 Plus Black 030@40MHz 128MB | A1200T 060@80MHz 320MB | Pegasos II G4@1GHz 1GB  | Amiga Future Sub
 

guest11527

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #16 on: March 21, 2015, 07:41:24 AM »
Quote from: xboxOwn;786570
Is 500 Mhz 68020 slower than 100 Mhz 68060?
No, you misunderstand. It is not that you have the choice between a 500 Mhz 68020 or a 100 Mhz 68060. It is neither one nor the other; these numbers should rather give you some feeling about the speed of the FPGA solution, i.e. the FPGA emulates a CPU that has approximately the same user level instruction support as a 68060 or 68020 at the speed grades given above, with a couple of missing instructions handled by a software emulation - in the same way the 68060 had a software emulation layer (in the form of the 68060.library).  
Quote from: xboxOwn;786570
 if they can make a 68020 run at 500 Mhz, why can't they make a 68060 run at 500 Mz instead or even 1 Ghz?

They can neither do one nor another. This is an FPGA emulation of approximately the performance of a 100Mhz 68060 or (equivalently) 500Mhz 68020. Why not faster? Simply because the FPGA cannot go faster, at this time. This is a very small and simple FPGA, with a limited number of cells to program, and with a limited speed grade. There are faster and larger chips, but those are more expensive.  Oh, before I forget: There is likely not enough room on the FPGA for a MMU or a FPU, thus integer only, i.e. it is approximately the equivalent of a 68EC060@100Mhz.
 

Offline IanP

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #17 on: March 21, 2015, 07:49:15 AM »
Quote from: xboxOwn;786570
Is 500 Mhz 68020 slower than 100 Mhz 68060? if they can make a 68020 run at 500 Mhz, why can't they make a 68060 run at 500 Mz instead or even 1 Ghz?
Talking about MHz and processor version numbers isn't very useful other than to say a new core is equivalent to X @ Y MHz. The instruction set will cover the 680x0 CPUs and may be extended further, the core will use modern processor techniques so it isn't an '020 or an '060 it's something a whole lot better.
 

Offline wawrzonTopic starter

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #18 on: March 21, 2015, 10:03:01 AM »
Quote from: Oldsmobile_Mike;786569
I think the only thing Amiga-related that I ever backed, that I got totally screwed over on, was that coupon & shirt deal.  What was that, about 2003?  2004?  I still want my damned shirt, lol.  :lol:

i dont think this is a pre-payment scheme. at least they were avoiding one before. they are evaluating the interest i guess.
« Last Edit: March 21, 2015, 12:25:37 PM by wawrzon »
 

Offline wawrzonTopic starter

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #19 on: March 21, 2015, 10:04:36 AM »
Quote from: Thomas Richter;786574
Oh, before I forget: There is likely not enough room on the FPGA for a MMU or a FPU, thus integer only, i.e. it is approximately the equivalent of a 68EC060@100Mhz.

are you sure? i thought it was vampire2 limitation, not the gunnars sockit board?
 

Offline OlafS3

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #20 on: March 21, 2015, 12:26:53 PM »
Quote from: Lurch;786566
Gave up :-/


I have made a comment on the apollo-core forum that there is a problem and people try to sign up and fail

So do not give up :)
 

Offline OlafS3

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #21 on: March 21, 2015, 12:28:57 PM »
Quote from: Lurch;786568
Hmm 060, now that would be interesting. Anyway would like to purchase one so emailed info@natami.net.

Still a little hesitant especially with some Amiga hardware projects, notably a certain scan doubler.


the card has LAN and a modern video output and it is promised that there will be RTG and a new improved amiga chipset added. At the start it is a accellerator with 128 MB RAM.
 

guest11527

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #22 on: March 21, 2015, 12:45:08 PM »
Quote from: wawrzon;786581
are you sure? i thought it was vampire2 limitation, not the gunnars sockit board?

 The limitation is the number of available cells in the vampire or vampire 2. It's an FPGA, so it does whatever you program it to do. If you program it to have a MMU, it would - just that the current FPGAs are just too small to allow one.  Besides, to my very knowledge, Gunnar does even have code for a MMU.
 

Offline wawrzonTopic starter

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #23 on: March 21, 2015, 01:22:59 PM »
yes, even though i thought that bga package igor is using now woulkd be bigger than the previous one. but actually we are reffering here to that sandwitch socit board proposed by gunnar, arent we? and i thought that would be begi enough for what he considers a full core.
« Last Edit: March 21, 2015, 01:40:55 PM by wawrzon »
 

Offline OlafS3

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #24 on: March 21, 2015, 01:24:30 PM »
Quote from: wawrzon;786588
yes, even though i though that bga package igor is using now woulkd be bigger than the previous one. but actually we are reffering here to that sandwitch socit board proposed by gunnar, arent we? and i thought that would be begi enough for what he considers a full core.


the thread you are referring to is for the bigger FPGA
 

Offline wawrzonTopic starter

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #25 on: March 21, 2015, 01:43:48 PM »
Seems there is some confusion due to different option being developed in parallel and announced at the same time. Its important that ecerybody checks his facts exactly before ordering.
 

guest11527

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #26 on: March 21, 2015, 01:49:33 PM »
Quote from: wawrzon;786590
Seems there is some confusion due to different option being developed in parallel and announced at the same time. Its important that ecerybody checks his facts exactly before ordering.

I'm talking about the vampire 2. That's "a bit bigger", but not much. Doubtful whether that's enough headroom for any extra. If you pick a completely different FPGA, sure, but there's no MMU design Gunnar has made. There are larger caches, superscalar cores and so on, but none that would feature a MMU for example.
 

Offline IanP

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #27 on: March 21, 2015, 01:54:43 PM »
The development boards referred to in this thread are combo cards like this pair for the A500/A1000/A2000. A pair including an adapter board with a PLCC socket for the A600 is proposed.
 

Offline wawrzonTopic starter

Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #28 on: March 21, 2015, 01:56:31 PM »
so, thomas, in your opinion is gunnars design sufficient for a full blown core with fpu and with some sort of mmu eventually?
 

Offline IanP

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Re: in case you are interested to test new fpga accelerators for a600/a500
« Reply #29 from previous page: March 21, 2015, 02:02:59 PM »
There is a version of the FPGA board that is 4 times bigger, so space for logic/features will not be an issue for those prepared to pay for it.