Any REAL collectors?

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lordv wrote:
@Castellen:

what 'no'?

No unsold source of amiga chipsets or - impossible to re-create amiga chipset from descriptions, if there are some?
Other ways are of course impossible.

..otherwise, the amiga would die forever.

You had better read the thread.

Forget about the custom chips. :-)

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lordv wrote:
@bloodline

You had better read the thread.
Forget about the custom chips.

errrm... I've read that even before posting here. The only useful statement there is that the original schematics of amiga custom chips is PROBABLY lost.

No, the Most useful statement is that even if the designs were still around, they would be useless. The Amiga chips were laid out by hand at the transistor level, for a chip fab technology that was old even in the early '90s.

The only way you could build those chips now would be in an FPGA, and that would need to use a chip spec language like Verilog or something. That would have to be worked out from scratch using the technical specifications of the chips (The original designes would be useless).

Secondly once you had built the Chipset (you probably fit the whole lot in one FPGA), it would take a large amount of logic just to interface with the original boards/chips, as the electrical specification of modern FPGAs (current, voltage timings, skew, jitter etc, etc...) are very different from the specs of chips/board built 15-20 years ago.

Turn on your PC, download WinUAE... run it... enjoy :-D

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Crusher wrote:
Yeah, buy a Volvo and put a Porsche body on it and enjoy.... don´t think so.  :-)

Sorry couldn´t resist.

:-D

But the Analogy is wrong. It would be like getting a modern VW and putting an old Ford Mustang body on it. Or somwthing I'm not really good with Cars :-)

Maybe a better one, is to get a Lotus Elise and put an Old Delorian body on it.

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Hmm, have you ever used winuae? (joke . It's like a piece of sh... damn, just terrible!

In what way?

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lordv wrote:
@bloodline:

Hmm, have you ever used winuae? (joke . It's like a piece of sh... damn, just terrible!

In what way?

In EVERY way. Old good and nice 50fps games jerks in winuae. Sound also jerks sometimes. Screen resolution does not switch automatically when it changes in emulated amiga. And more, more, more.

Odd, you must be using a different version of WinUAE to me then :-?

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lordv wrote:
@bloodline

Odd, you must be using a different version of WinUAE to me then

0.9.92

It is impossible to have:
1. smooth movement in games (and even smooth movement of mouse pointer - see it at real amiga!) unless the frame rate of CRT monitor (TFT here SUCK!) will be exactly 50Hz and the emulation will be perfectly synchronized to the vertical beam movement. EVERY other case - even the frame rate of 100, 150, etc. Hz WILL suck.

2. simultaneous perfect sound AND constantly smooth movement (if all conditions of 1 are observed), unless we have sound and video systems clocked from SINGLE source (which is obviously wrong in case of separate video and sound cards).

All abovementioned statements are obvious by nature - provided you're familiar enough why do you see really smooth movement in old amiga games, in amiga mouse pointer, in SOME tv programs, in SOME LED running lines, etc. =)

I don't want to say you are wrong, but I have my main machine running at 75Hz, and all games run beautifully in WinUAE... Silky smooth, tell me how Shadow of the Beast 1, 2 or 3 run.

I honestly think you are making this up, As long as 50 frames are displayed per second it will look like the Amgia original... if the PC's frame rate is higher than 50, WinUAE will be able to generate 50fps... it will look great. IT DOES LOOK GREAT!!!

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AFAIR sotb aren't 50fps game, so it's a bad example.

SOTB is THE classic example of a 50fps game... absolutely STUNNING graphics.

Anyway, 75fps is even worse than 100 - some amiga frames are displayed for 1 monitor scan, others for 2 scans.

You have the only set of human eyes that can see movement above 25 frames per second... Ahhhh, movies must suck for you :lol:

As long as 100 frames per second are displayed with two of them being the same, you'll see a jerking sprite. If you can't understand what I tell about, just take a good 50 fps TV with the real amiga and compare games and old demos - with winuae at 100 fps display mode. The thing is: for the really smooth-looking EVERY next frame must differ - in every other case there WILL be jerking.

Ok, I'll try and explain it to you :-)

The human eye can't register a descrete change if it happens faster than 40ms, which is one 25th of a second. by running at 50fps you eliminate any aliasing between the frames, which gives the impression of super smooth animation. Anything over that just reduces the aliasing further...

If you run your PC Monitor at 100Hz, and UAE generates it's screens at 50Hz, so that the PC monitor is showing one Amiga frame for every two Monitor frames... you still have  50 frames per second...

I even doubt now you really had a real amiga and saw real oldskool 50fps demos there and played 50 fps games =))))

You don't want to know how many Amigas I have :-)

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Hammer wrote:

You have the only set of human eyes that can see movement above 25 frames per second... Ahhhh, movies must suck for you

Refer to
http://journal.pcvsconsole.com/?thread=2800
http://www.100fps.com/how_many_frames_can_humans_see.htm

Some hardcore PC gamers can notice 60 FPS* vs ~100 FPS*.  
*VSync’ed.

Brilliant resource Hammer, and nicely explains my point... but the main issue here is that as long as at least 50 frames are being displayed per second by WinUAE, the display WILL look the same as it did on an Amiga...

Maybe Lordv is confusing frame rate with clarity of image...

A Television set has natural AntiAliasing effect, which a high resolution PC monitor does not have, since my Geforce6200 has a TV out I, pluged it into my TV... Running side by side with my A500, One really cannot see any difference!