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Author Topic: First to implement AAA chipset?  (Read 12911 times)

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Offline SamuraiCrow

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Re: First to implement AAA chipset?
« on: September 30, 2011, 08:49:35 PM »
Quote from: amigadave;662014
With the FPGA Arcade Replay Board on the verge of becoming mass produced (compared to other projects in the Amiga market only), it probably has enough room in its FPGA to contain the SAGA code and could double or quadruple the number of computers that can run SAGA capable programs in the future, since the Natami will be a higher spec and higher priced product that will not match the popularity and wide spread distribution of the Replay board.


By my guestimates, I'd say the Replay board won't have enough room for the SAGA chipset alone, much less the SAGA and the N050.  Also, the SuperAGA chipset is being designed in AHDL so it will only work on Altera FPGAs without conversion to VHDL.  The FPGA used in the NatAmi will have approximately 4+ times the capacity of the Xilinx one used in the Replay board.  Of course that will cost more than the Replay board, but it will also be more future-proof.  Just because the NatAmi is still in the alpha-test stages doesn't mean that it won't be useful to people outside the Amiga community as well.
 

Offline SamuraiCrow

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Re: First to implement AAA chipset?
« Reply #1 on: October 03, 2011, 04:36:16 AM »
Quote from: amigadave;662063
I did not realize that the Natami FPGA was that much larger than the one used in the Replay board.  I was not expecting the Natami N050, or N070 code to be used in the Replay board, just hoping that the SAGA code would fit.  Maybe it will if the Replay board has the "to be released in the future" daughter card with an actual 68060 on board so that there is no 680x0 code in the FPGA taking up space?


I have a correction to make.  The FPGA we're using has only 3 times the capacity of the Replay, not 4+ times.  If the SuperAGA was to try to fit on the Replay you'd have to ditch the 3D capabilities completely though.
 

Offline SamuraiCrow

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Re: First to implement AAA chipset?
« Reply #2 on: October 03, 2011, 04:38:38 AM »
Quote from: DCAmiga;662064
I noticed Jason McMullan is taking interest in developing for the Natami, which is great news!
With all this talk about AAA and SAGA and Natami being in alpha stage I was wondering how fast the FPGA chip is running at (over 145 mhz I hope) ... I would love to see a 1080p resolution for Natami.


The FPGA itself clocks more than 145 MHz but the N68050 CPU core will be more in the 133 MHz ballpark figure making it equivalent to a 75-100 MHz 68060.  In time the N68070 will pick up some slack.