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Author Topic: FPGA Replay Board  (Read 819217 times)

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Offline yaqube

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Re: FPGA Replay Board
« Reply #89 on: January 23, 2011, 10:40:50 AM »
Quote from: Darrin;608379
Do we have any SysInfo results yet with a Minimig core?


It was posted some time ago.



We are still working on it. Recently Tobias has implemented the missing bit field instructions and we are testing them now.

The performance will improve further when 32-bit wide transfers are implemented.
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Offline freqmax

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Re: FPGA Replay Board
« Reply #90 on: January 23, 2011, 03:10:47 PM »
32-bit wide transfers, where?
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Offline yaqube

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Re: FPGA Replay Board
« Reply #91 on: January 23, 2011, 03:51:51 PM »
Quote from: freqmax;608453
32-bit wide transfers, where?


The CPU core still has only 16-bit data bus while the cache interfaces the memory with 32-bit bus and bursts data at 112 MB/s.
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Offline Darrin

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Re: FPGA Replay Board
« Reply #92 on: January 23, 2011, 04:39:33 PM »
Quote from: yaqube;608422
It was posted some time ago.

We are still working on it. Recently Tobias has implemented the missing bit field instructions and we are testing them now.

The performance will improve further when 32-bit wide transfers are implemented.


Very nice!

I can see a few second hand Minimig v1.1 units appearing on eBay when this beastie gets released.  :D
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Offline DCAmiga

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Re: FPGA Replay Board
« Reply #93 on: January 23, 2011, 05:27:50 PM »
Quote from: yaqube;608458
The CPU core still has only 16-bit data bus while the cache interfaces the memory with 32-bit bus and bursts data at 112 MB/s.

Very Nice 112 MB/s :D but just out of curiousity, wouldnt it be better to also add a CPU 32-bit data bus aswell?
 
And would it be also possible to increase the Ram to say 256 Mb or greater?
 
Thanks
DC
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Offline Darrin

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Re: FPGA Replay Board
« Reply #94 on: January 23, 2011, 05:59:29 PM »
Quote from: DCAmiga;608472
Very Nice 112 MB/s :D but just out of curiousity, wouldnt it be better to also add a CPU 32-bit data bus aswell?
 
And would it be also possible to increase the Ram to say 256 Mb or greater?
 
Thanks
DC


More RAM = more cost.

I think the goal should be to get this board out as it is and into the hands of customers and then look at making a v2 with higher specs if the demand supports it.

Let's face it, we have a machine here capable of performing above 68030 speeds at the price of a 68030 CPU card.  Upgrading to a new, improved board ever 12-18 months and selling the old one should be within everyone's budget.
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Offline vidarh

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Re: FPGA Replay Board
« Reply #95 on: January 23, 2011, 07:22:16 PM »
Quote from: DCAmiga;608472
Very Nice 112 MB/s :D but just out of curiousity, wouldnt it be better to also add a CPU 32-bit data bus aswell?


Well, yeah, that's presumably the reason yaqube earlier said it'll get faster once 32 bit transfers are turned on :)
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Offline xyzzy

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Re: FPGA Replay Board
« Reply #96 on: January 23, 2011, 07:27:09 PM »
Quote from: DCAmiga;608472
And would it be also possible to increase the Ram to say 256 Mb or greater?


I am assuming that any extra ram will be put on to the expander card.
« Last Edit: January 23, 2011, 10:36:30 PM by xyzzy »
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Offline freqmax

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Re: FPGA Replay Board
« Reply #97 on: January 23, 2011, 11:49:42 PM »
Quote from: xyzzy;608496
I am assuming that any extra ram will be put on to the expander card.


I assume someone elses wallet will get its expense expanded .. :P
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Offline Linde

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Re: FPGA Replay Board
« Reply #98 on: January 24, 2011, 01:31:03 AM »
I'm looking forward to some videos of CPU intensive demos and games -- Doom, Gloom and what have you.
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #99 on: January 25, 2011, 12:17:59 PM »
Quote from: Darrin;608378
Using the cursor keys to configure is fine by me.  What I would like is a way to save several confurations:

Basic A500-like with KS1.3, OCS, 1 drive, etc @ 7MHz
Super Minimig with KS3.1, best chipset available, maximum RAM, hard file, etc
etc
etc


I second that. That's a very good feature, and it should not even take up much space either.

Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #100 on: January 25, 2011, 12:20:50 PM »
Quote from: Darrin;608477
More RAM = more cost.

I think the goal should be to get this board out as it is and into the hands of customers and then look at making a v2 with higher specs if the demand supports it.

Let's face it, we have a machine here capable of performing above 68030 speeds at the price of a 68030 CPU card.  Upgrading to a new, improved board ever 12-18 months and selling the old one should be within everyone's budget.


True. And we have to bare in mind that when it comes to retro commodore hardware and the newer clones and fpga boards, we're opening our wallets as wide as we can without hesitation. We enjoy paying for them -- and that is a pretty rare phenomenon :-)


Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #101 on: January 25, 2011, 12:27:08 PM »
Quote from: freqmax;608552
I assume someone elses wallet will get its expense expanded .. :P


I already had to install a secondary expense-expanderadapter to the already piggybacked expense-expansion board. It has opened up for extremely high flow of expenses to the output of the wallet ;-)

Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #102 on: January 25, 2011, 12:34:55 PM »
Quote from: Linde;608560
I'm looking forward to some videos of CPU intensive demos and games -- Doom, Gloom and what have you.


Definitely. It will be the same feeling as when you were a kid at Christmas eve ;)

Espen
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Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #103 on: January 28, 2011, 11:10:02 AM »
Yaqube / Mike: I am wondering what is the resolution which the Replay board (with daughterboard attached -- if that changes things resolutionwize) will work with. I a going to buy a LCD monitor which has the same native resolution as the Replay board will output so that I get best image quality (no scaling).

I think I discussed this some months ago with you, and the 1650x1080 resolution came up I think. Will we be able to run e.g. P96 so we can scale up our workbenches to this resolution ? If you have any data here, i'd be very glad to hear so I can plan the LCD i need to use :)

Espen
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Offline Methanoid

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Re: FPGA Replay Board
« Reply #104 from previous page: January 28, 2011, 02:51:24 PM »
Someone remind me of Mike's current ETAs for releasing this for sale? I'm gonna poop myself waiting ;)
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