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Author Topic: For those who like useless cool things.  (Read 7089 times)

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Offline XanxiTopic starter

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For those who like useless cool things.
« on: May 29, 2011, 04:34:09 PM »
Here is a screen capture of UAE running on my A1200 with Blizz1260@50.

Slow as hell to emulate a 68000/KS 1.2/ WB 1.3/ 512KB CHIP 512KB SLOWRAM, but it works :-)

Note that there should be a nice copper effect backdrop instead of this grey screen, but strangely SGrab does not take it into the capture.

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Offline Kronos

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Re: For those who like useless cool things.
« Reply #1 on: May 29, 2011, 04:37:30 PM »
Quote from: Xanxi;641148

Note that there should be a nice copper effect backdrop instead of this grey screen, but strangely SGrab does not take it into the capture.


Nothing strange, copper-effects are not part of the bitmap and therefore not saved by SGrab or similar.

If you had that copper stuff on the emulated side it would have been different.
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2. Wait a while.
3. Check if it can actually be done.
4. Wait for someone else to do it.
5. Start working on it while giving out hillarious progress-reports.
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Offline trekiej

Re: For those who like useless cool things.
« Reply #2 on: May 30, 2011, 09:21:42 AM »
I heard of emulating an Amiga on an Amiga a while back. I did not know what happended to it.
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Offline bloodline

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Re: For those who like useless cool things.
« Reply #3 on: May 30, 2011, 10:04:41 AM »
Copper effects (and sprites) are video "tricks" that only exist in the video chip (Lisa in your case) they aren't really part of the display bitmap.

I did try to run a VERY old version of PPC UAE on my PowerUp board many years ago... You could make a cup of tea between each frame :(
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Offline Kesa

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Re: For those who like useless cool things.
« Reply #4 on: May 30, 2011, 11:39:42 AM »
This is amazing! A classic Amiga emulating another Classic Amiga! This does spark the question - how many times can an Amiga emulate itself? An Amiga, emulating another Amiga, which is emulating another Amiga, which is .... (and so on). I reckon 15 :roflmao:
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Offline Karlos

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Re: For those who like useless cool things.
« Reply #5 on: May 30, 2011, 11:43:25 AM »
Quote from: Kesa;641339
This is amazing! A classic Amiga emulating another Classic Amiga! This does spark the question - how many times can an Amiga emulate itself? An Amiga, emulating another Amiga, which is emulating another Amiga, which is .... (and so on). I reckon 15 :roflmao:


RAM would be the limit at each stage. You'd need to make sure that your actual machine would have enough ram to emulate the first level, which would need to have enough ram to emulate the next and so on until you got to a point where the topmost level of emulation requires more RAM than you have available.

Of course, the speed would be nothing short of glacial.
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Offline Franko

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Re: For those who like useless cool things.
« Reply #6 on: May 30, 2011, 11:44:42 AM »
Quote from: bloodline;641327
Copper effects (and sprites) are video "tricks" that only exist in the video chip (Lisa in your case) they aren't really part of the display bitmap.

I did try to run a VERY old version of PPC UAE on my PowerUp board many years ago... You could make a cup of tea between each frame :(


I tried that myself a few weeks back, kinda weird having an emulated Amiga running on an A1200 in super slow motion... :)
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Offline Kesa

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Re: For those who like useless cool things.
« Reply #7 on: May 30, 2011, 11:52:53 AM »
Quote from: Karlos;641341
RAM would be the limit at each stage. You'd need to make sure that your actual machine would have enough ram to emulate the first level, which would need to have enough ram to emulate the next and so on until you got to a point where the topmost level of emulation requires more RAM than you have available.

Of course, the speed would be nothing short of glacial.

I have already considered this and solved it. We can use Perpetual motion and adopt it for use on classic Amigas. We will setup a loop in that the last Amiga being emulated will use the Ram from the first Amiga resulting in infinite emulation.

http://en.wikipedia.org/wiki/Perpetual_motion
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Offline Karlos

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Re: For those who like useless cool things.
« Reply #8 on: May 30, 2011, 11:55:50 AM »
Good luck with that...
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Offline Franko

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Re: For those who like useless cool things.
« Reply #9 on: May 30, 2011, 12:05:24 PM »
Quote from: Kesa;641344
I have already considered this and solved it. We can use Perpetual motion and adopt it for use on classic Amigas. We will setup a loop in that the last Amiga being emulated will use the Ram from the first Amiga resulting in infinite emulation.

http://en.wikipedia.org/wiki/Perpetual_motion


You been drinking again... :D
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Offline Iggy

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Re: For those who like useless cool things.
« Reply #10 on: May 30, 2011, 01:12:58 PM »
Quote from: Franko;641350
You been drinking again... :D

I've had dumber ideas recently (without the drink).
And what would you do with a REALLY powerful PPC accelerator card? Emulate an Amiga adequately (...on...an...Amiga)?
Ur..um. I've got to think that one over again.
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Offline gertsy

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Re: For those who like useless cool things.
« Reply #11 on: May 30, 2011, 01:31:18 PM »
My calculations predict going any further than 4 loops of Amigas emulating Amigas would result in a warp in the space/time continuum that would suck the Earth into black hole.  But only if the exact date is May 21 2011.
« Last Edit: May 30, 2011, 01:34:07 PM by gertsy »
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Offline Kesa

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Re: For those who like useless cool things.
« Reply #12 on: May 30, 2011, 01:33:19 PM »
Quote from: gertsy;641367
My calculations predict only 4 loops of Amigas emulating Amigas would result in a warp in the space/time continuum that would suck the Earth into black hole.  But only if the exact date is May 21 2011.

Oh no we missed it :(
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Offline Franko

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Re: For those who like useless cool things.
« Reply #13 on: May 30, 2011, 01:51:21 PM »
Quote from: Kesa;641369
Oh no we missed it :(


No we didn't... :confused:

Im posting right now from a parallel universe that I got sucked into on that date... :)

It's pretty dark in here but at least the Amiga is the only computer in this world and has been continually developed for a zillion years in this universe and is now an implant in everybods brain who lives here... :)

Only trouble is they never sorted out the flicker in interlace mode so it does make your eyes go a bit funny when you switch them to Hi-Res mode... :)

Oh look there's Dr Who just popped in for tea & scones, or is it Darrin in his home built Tardis, gotta go now the Cyebrmen are knocking on me door, think I'd better let them in cos their trying to escape from the Jehovahs Witnesses who're coming up the garden path behind them... :eek:
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Offline Colani1200

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Re: For those who like useless cool things.
« Reply #14 on: May 30, 2011, 02:37:21 PM »
Yo dawg, I heard you like emulation... :D

PS: Nothing useless about it actually.
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