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Author Topic: MiniMig with AGA  (Read 317651 times)

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Offline vidarh

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Re: MiniMig with AGA
« on: August 23, 2010, 06:36:36 AM »
Price is well within the acceptable range... I'd be happy with either the first run or a later one.
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #1 on: August 27, 2010, 07:24:08 PM »
Quote from: freqmax;576528
Actually a BSD licensed AmigaOS clone that can run natively on 68000 would be really useful for a project like this.

It should have the same binary API, fit the same ROM area as the original, and implement certain sections such that some bitbang tricks will still work.

There really is a need for both v1.3 compatible w 68000, and v3.x compatible w 68020.


Why BSD licensed?  Other than that, the goals for AROS fits the bill, but the M68k port is not up to date and needs quite a bit of work before it'd be suitable, and the binary compatibility isn't there yet, but at least most of the AmigaOS API is implemented.
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #2 on: August 27, 2010, 07:26:22 PM »
Quote from: freqmax;576520

The kickstart-ROM I guess will have to be "found" by users ;),


Or they can just buy Amiga Forever.

And I'm sure Cloanto would be open to a deal with Mike to have it pre-installed if their license allows them to do that.
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #3 on: August 28, 2010, 07:33:19 AM »
Quote from: kolla;576533
That prompts for a question, for yaqube I suppose - will the minimig core for FPGAArcade support cloanto's keyfile?


The keyfile just needs to be eor'd byte for byte with the kickstart, so it'd be easy to support, but it's just as easy to do so with a tiny script.
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #4 on: September 29, 2010, 05:02:02 PM »
Quote from: fishy_fiz;581885
Im sure this has been covered many times already, but Ive only casually been following minimig. Hypothetically if I bought one today, what would I have in amiga terms ? Are the currently available systems ocs/ecs still, or is aga available to the end user already ?


You need to wait for the FPGA Arcade (or Natami) for AGA.

Quote

 Also, I see on Amigakits site there's mention of a 50mhz mode ? I was actually under the impression the cpu was a "real" 68000 cpu?


It's a Freescale (formely Motorola Semiconductor) 68000 model (don't remember which exact version), so yes, it's a real one. But it can be clocked much higher than the measly 7.16MHz of the early Amigas. The speedup in real terms isn't as dramatic as the MHz speedup sounds, as AFAIK it's still hamstrung by the memory architecture and the fact it's still a 68000 (e.g. lots more cycles for a lot of stuff than an equivalently clocked of the other chips in the family).

You effectively get a somewhat souped up A500 with no expandability to speak off. It's a great little thing to have, but it depends what you want it for. If you want to run A500 games in the living room, it's perfect (I have mine hooked up to a 42" LED TV  - perfect for Lotus Turbo Challenge :) ). If you want a replacement for an AGA machine or any big box Amiga with typical expansions it's not really suitable.

I'd hold off at least a little bit, though, to see what reactions are to the FPGA Arcade. Or be prepared to buy both...
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #5 on: September 29, 2010, 05:09:46 PM »
Quote from: fishy_fiz;581907

Additionally all I really need is something akin to a moderately upgraded system ('020 + fast type speeds or thereabouts, more would be nice, but not essential). AGA would be preferable, but not absolutely necessary.

I guess another big factor for me is it's pretty much now, or never. I wont have the money in a few weeks, so I want something now, or in the very near future.


From the sounds of it, Minimig really isn't suitable for you, I think - chances are you'll find it too slow and limited. FPGA Arcade sounds like a better fit if you can hang in there a bit longer...
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #6 on: October 30, 2010, 08:32:16 PM »
Quote from: matthey;588213
That's going to cost you the price of a MiniMig in shoes too :P.


That's why my wife never gets to know how much the hardware I buy costs...
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #7 on: November 01, 2010, 04:45:20 PM »
Quote from: Crom00;588481
Get a real Amiga and run the wife as an emulation that you can pause whenever it gets on your nerves. Better yet...just press f12 and reset.


I had a pause button on my old A500 with one wire soldered straight onto the right pin on the CPU and the other straight onto a GND pin on the side bus...
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #8 on: November 17, 2010, 09:37:58 AM »
Quote from: benJamin;592398
So, soft-core porn is OK?


In that case FPGA Arcade ought to be ok - all those hot pics of bare naked PCB's
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #9 on: November 25, 2010, 08:51:30 PM »
Keep the benchmark p0rn coming... I can't wait to get hold of one of these..
« Last Edit: November 26, 2010, 11:27:25 AM by vidarh »
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #10 on: November 27, 2010, 05:34:58 PM »
Quote from: Franko;594585
(PS:Could someone start a new poll please, having that one stuck their about me all this time is like having some sort of wanted or warning poster about me and we're starting to get a bit paranoid... ta... :))


Time for one that goes "Is Franko paranoid, or are we really out to get him?" then.
 

Offline vidarh

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Re: MiniMig with AGA
« Reply #11 on: December 01, 2010, 11:19:15 AM »
Quote from: freqmax;594890

The only noteworthy is that the data cache gave TG68 a 2x boost. I suspect there are other parts that can be optimized. But one has to stay compatible too. As soon as some software uses tight I/O loops with external hardware or multimedia chips there might be a problem otherwise.


It'd be nice to have a cycle exact version to fall back on, but I wouldn't worry too much otherwise - anything using loops for timing would fail on any number of Amiga models and with most accelerators too, and presumably wouldn't take advantage of the extra performance anyway. If it's easy enough to fall back on a plain 68000 version for particularly badly coded stuff but use a nicely optimized one for workbench etc. that'd be ideal.