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Author Topic: FPGA Replay Board  (Read 823323 times)

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Offline Kesa

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Re: FPGA Replay Board
« Reply #2369 from previous page: February 08, 2013, 08:24:46 PM »
MikeJ, what's the meaning of life?     :rolleyes:
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Offline psxphill

Re: FPGA Replay Board
« Reply #2370 on: February 08, 2013, 08:38:54 PM »
Quote from: ChaosLord;725818
I for one, do not trust the speed assessments given by the simulation software.

Why?
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Offline ChaosLord

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Re: FPGA Replay Board
« Reply #2371 on: February 08, 2013, 09:19:49 PM »
Quote from: psxphill;725832
Why?


Because its a simulation and simulations are not real.  You can make up 1000 different simulations of something and get 1000 different answers.  

If they actually knew the answer for a fact then it would be called a Calculation, not a simulation.  Right?
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Offline mongo

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Re: FPGA Replay Board
« Reply #2372 on: February 08, 2013, 11:44:13 PM »
Quote from: ChaosLord;725833
Because its a simulation and simulations are not real.  You can make up 1000 different simulations of something and get 1000 different answers.


Then the thing you're simulating is random, or your simulation is wrong.  

Quote
If they actually knew the answer for a fact then it would be called a Calculation, not a simulation.  Right?


No.
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Offline freqmax

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Re: FPGA Replay Board
« Reply #2373 on: February 09, 2013, 12:27:32 AM »
Simulation is a lot of calculations really fast ;)
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Offline glitch

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Re: FPGA Replay Board
« Reply #2374 on: February 09, 2013, 12:34:31 AM »
Quote from: yaqube;725562
I can tell you in secret that I'm working on a new board which integrates an FPGA and 060 CPU together with other goodies. It won't be a direct replacement of any existing Amiga mainboard.


TAKE MY MONEY!  No, seriously... TAKE MY MONEY!

ATX/Baby ATX form factor?  If so, awesome.  I have several '060s waiting here patiently.  Me, not so much.

Thanks!
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Offline Banter

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Re: FPGA Replay Board
« Reply #2375 on: February 09, 2013, 01:18:27 AM »
Quote from: yaqube;725808

Yes, there are plans to create another daughterboard with a bigger FPGA which could act as high-performance CPU. The question remains: who will make the CPU core?.


Hey Jakub,

The NatAmi 68050 core (also known as N050) is going to be published under GPL license.

http://www.natami.net/knowledge.php?b=6¬e=32232&x=5

Pozdrawiam :)
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Offline Heiroglyph

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Re: FPGA Replay Board
« Reply #2376 on: February 09, 2013, 02:26:45 AM »
Quote from: Banter;725855
Hey Jakub,

The NatAmi 68050 core (also known as N050) is going to be published under GPL license.

http://www.natami.net/knowledge.php?b=6¬e=32232&x=5

Pozdrawiam :)


We'll have Natami cores just in time to use them on our BoXer boards.
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Offline freqmax

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Re: FPGA Replay Board
« Reply #2377 on: February 09, 2013, 04:12:57 AM »
Quote from: Heiroglyph;725859
We'll have Natami cores just in time to use them on our BoXer boards.


BoXeR?
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Offline yaqube

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Re: FPGA Replay Board
« Reply #2378 on: February 09, 2013, 08:18:10 AM »
Quote from: Banter;725855
The NatAmi 68050 core (also known as N050) is going to be published under GPL license.


I have heard about Jen's plans. Frankly speaking I also work on a 68000 CPU core but it's far from complete, it needs about 500 work hours to complete so it won't happen soon.
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Offline Kokos

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Re: FPGA Replay Board
« Reply #2379 on: February 09, 2013, 09:37:23 AM »
Quote from: Kesa;725830
MikeJ, what's the meaning of life?     :rolleyes:


Also, what can change the nature of a man?
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Offline gaula92

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Re: FPGA Replay Board
« Reply #2380 on: February 09, 2013, 11:59:31 AM »
@MikeJ:
TobiFlex in flesh and bone has fixed some TG68 bugs yesterday and now TG68 is compatible with certain games that crashed before. Maybe you should merge his changes with the new core. Relevant thread:

http://minimig.net/viewtopic.php?f=9&t=558
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Offline psxphill

Re: FPGA Replay Board
« Reply #2381 on: February 09, 2013, 12:19:13 PM »
Quote from: ChaosLord;725833
Because its a simulation and simulations are not real. You can make up 1000 different simulations of something and get 1000 different answers.
 
If they actually knew the answer for a fact then it would be called a Calculation, not a simulation. Right?

There is always a margin of error for maximum clock speed, even with real chips. An 8mhz 68000 doesn't include anything that limits it to exactly that speed for instance. They just picked a round number out of the air and designed it so that the power and heat were roughly within other numbers that they picked out of the air.
 
However if you're talking about how fast a CPU in an FPGA will run at a given clock speed, then the simulation should easily be able to come up with an accurate answer for that.
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Offline freqmax

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Re: FPGA Replay Board
« Reply #2382 on: February 09, 2013, 02:36:39 PM »
Wire inductance, wire capacitance and heat issues are usually the factors that limit the speed (asfaik).
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Offline mikej

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Re: FPGA Replay Board
« Reply #2383 on: February 09, 2013, 05:32:07 PM »
Quote from: gaula92;725876
@MikeJ:
TobiFlex in flesh and bone has fixed some TG68 bugs yesterday and now TG68 is compatible with certain games that crashed before. Maybe you should merge his changes with the new core. Relevant thread:

http://minimig.net/viewtopic.php?f=9&t=558


Got it.
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Offline wawrzon

Re: FPGA Replay Board
« Reply #2384 on: February 09, 2013, 06:44:51 PM »
Quote from: mikej;725891
Got it.


cool, tg68 is improving, and some conscious involved, have already thought its dead.
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