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Author Topic: FPGA Replay Board  (Read 820264 times)

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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #374 on: March 30, 2011, 08:17:27 AM »
I got mine yesterday (first batch). Not being sure if what I payd is what batch#2-boards will sell for, I won't be able to comment on that price. I believe that Mike has written some messages on this thread a while ago what he'll charge for the boards.
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Offline vidarh

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Re: FPGA Replay Board
« Reply #375 on: March 30, 2011, 10:36:24 AM »
Quote from: espskog;625943
I got mine yesterday (first batch).


Trying hard not to be jealous.... Any first impressions?
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Offline wizard66

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Re: FPGA Replay Board
« Reply #376 on: March 30, 2011, 11:13:08 AM »
Quote from: vidarh;625958
Trying hard not to be jealous.... Any first impressions?


I also recived my FPGAArcade board yesterday (first batch).
We have no firmware yet (.bin), because MikeJ is to China in a hurry for work last friday.
He dropted the boards off @ the airport.
He will upload the needed files to us soon.
So all we can do for now looking live at it without any action LOL ;-)
We realy need the files !!!!!!!!!! hahaha....
« Last Edit: March 30, 2011, 11:15:41 AM by wizard66 »
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-=* Homemade Minimig\'s Build 09 *=-

1x FPGAARCADE Replay v1.0B (Inside a A590 case)
Dreaming of 1x FPGAArcade Daughter-board :-) (inline from day 1)
1x A600
 

Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #377 on: March 30, 2011, 05:51:47 PM »
Quote from: vidarh;625958
Trying hard not to be jealous.... Any first impressions?


Well, it is very small in size. Very handy :) And the build is good. It simply looks fantastic and feels great. That is about all I can say for first impression, as I have not yet booted it. I need to DL the core and the files from Mike first :D

But as soon as i have it powered up, I will definitely post some information.

Now I can't wait for the Daughterboard from Yaqube to arrive when he finishes it and it goes into production. :) That is gonna me a kick-ass Amiga desktop replacement unit. Oh man...

Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #378 on: March 30, 2011, 05:59:45 PM »
Quote from: wizard66;625962
I also recived my FPGAArcade board yesterday (first batch).
We have no firmware yet (.bin), because MikeJ is to China in a hurry for work last friday.
He dropted the boards off @ the airport.
He will upload the needed files to us soon.
So all we can do for now looking live at it without any action LOL ;-)
We realy need the files !!!!!!!!!! hahaha....


Hehe..true. He posted it on his way to the airport, and it arrived IN MY MAILBOX at 12m ..just a few hours later...and I live in a different country. Man, he must have bribed the postal dude cause I have never experienced such a fast delivery. It must be the power of Amiga that was doing its mojo-thang :)

I hoped he had forgotten his test-sd card in my board, but ....no luck ;)

He'll upload the image and send us the tutorial/info/manual/textfile on how to operate this 747 :)
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Offline Belial6

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Re: FPGA Replay Board
« Reply #379 on: March 30, 2011, 06:48:41 PM »
Well, now he has created a whole new Amiga flame war.  Will the official release date be Today, or when he ships the files to power the board up? ;)
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Offline Iggy

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Re: FPGA Replay Board
« Reply #380 on: March 30, 2011, 06:52:07 PM »
Well, as soon as you guys have these up you've got to post some impressions.
Replay beats the Natami to the gate!
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Offline psxphill

Re: FPGA Replay Board
« Reply #381 on: March 30, 2011, 07:44:28 PM »
Quote from: vidarh;625444
No. At runtime. It wouldn't be a JIT if it tried to do it all at once.
 
Which is why you trace the execution until each branching point and JIT trace by trace rather than the whole thing at once,

What you're suggesting is impossible. You say it won't take more ram and yet you're somehow going to have the entire program in memory and have it patch itself. Just try and code it.
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Offline Iggy

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Re: FPGA Replay Board
« Reply #382 on: March 30, 2011, 10:27:38 PM »
Quote from: psxphill;626058
What you're suggesting is impossible. You say it won't take more ram and yet you're somehow going to have the entire program in memory and have it patch itself. Just try and code it.

Obviously that approach would take more memory. And you're running additional processes to control the interpretation and execution of the code.
So more memory and a higher CPU load.
MorphOS can handle JIT for a 68K processor, but look at the speed of the processors it runs on.

Available Coldfires just don't run that fast to make JIT practical unless your goal is running 68K code at about 68K speeds and running native Coldfire code at full speed.
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"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"
 

Offline vidarh

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Re: FPGA Replay Board
« Reply #383 on: March 30, 2011, 10:39:42 PM »
Quote from: psxphill;626058
What you're suggesting is impossible. You say it won't take more ram and yet you're somehow going to have the entire program in memory and have it patch itself. Just try and code it.


I say it won't take a lot more RAM. For a typical program where only a small percentage of the instructions need to be patched, the growth would hardly be noticeable.

My point was that there's no reason to generate the whole program all over again at a new location in memory.
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Offline Iggy

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Re: FPGA Replay Board
« Reply #384 on: March 30, 2011, 10:44:57 PM »
Quote from: vidarh;626093
I say it won't take a lot more RAM. For a typical program where only a small percentage of the instructions need to be patched, the growth would hardly be noticeable.

My point was that there's no reason to generate the whole program all over again at a new location in memory.

Right, you're going through the code as it executes so it does take up that much memory. The JIT interpreting code itself would take up more space.
But the CPU cycles used by the JIT software are significant.
And the overhead doesn't completely disappear when running compatible code because each part still has to be checked.
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"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"
 

Offline vidarh

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Re: FPGA Replay Board
« Reply #385 on: March 30, 2011, 10:47:13 PM »
Quote from: Iggy;626090

MorphOS can handle JIT for a 68K processor, but look at the speed of the processors it runs on.


MOS JIT's from m68k to PPC - a massively more complicated task. Even so, I very much doubt the cost of the actual JIT is particularly noticeable.

There's plenty of research on load time code generation on M68k CPU's that demonstrate that it can be done quickly, for example Michael Franz' doctoral dissertation from 1994 - Code-Generation On-the-Fly: A Key to Portable Software - that achieved speeds on 68020's or 68030's that was fast enough to be hardly noticeable while executing a far more complicated code-generation pass.

Anyway - I'd be happy to continue this discussion, but if so we really ought to create a new thread for it - this is getting rather off topic :)
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Offline NovaCoder

Re: FPGA Replay Board
« Reply #386 on: March 30, 2011, 11:25:28 PM »
Quote from: Belial6;626042
Well, now he has created a whole new Amiga flame war.  Will the official release date be Today, or when he ships the files to power the board up? ;)


Yes that's true, a new 'camp'....the FPGA Amiga camp ;)

What color shall we go for this time chaps....how about green for jealousy?

Actually, what color is AROS meant to be....is green already taken :)


Glad to see this interesting project is starting to pick up pace, hopefully in a year or so there will be a real alternative to genuine (upgraded) HW for getting my WHDLOAD/OS 3.9 kicks.
« Last Edit: March 30, 2011, 11:27:35 PM by NovaCoder »
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Life begins at 100 MIPS!


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Offline freqmax

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Re: FPGA Replay Board
« Reply #387 on: March 31, 2011, 12:27:14 AM »
Btw, anyone with a schematic + synthesis software can write software for the board.
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Offline HenryCase

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Re: FPGA Replay Board
« Reply #388 on: March 31, 2011, 12:34:44 AM »
Quote from: NovaCoder;626107

Actually, what color is AROS meant to be....is green already taken :)


AROS is the black camp.
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Offline Darrin

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Re: FPGA Replay Board
« Reply #389 from previous page: March 31, 2011, 01:01:08 AM »
Quote from: HenryCase;626139
AROS is the black camp.


AROS camp watches in horror as FPGA Arcade sales take off...
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