maybe classic Amiga at 402.5 Mhz with CPU Cyclone II FPGA 20K PQFP-240?

[majsta]

I know about that I was just pointing to the core mentioned in this topic as potential core for future Amiga development and I just wanted to investigate price of specific core.

[pandy71]

Originally Posted by majsta

I know about that I was just pointing to the core mentioned in this topic as potential core for future Amiga development and I just wanted to investigate price of specific core.

I know that You know this - this is more for people thinking that TG68 is an performance issue - TG68 is not a perfect core but it is a solid base to improve and it is for free and FPGA reality is that fast and large FPGA are very expensive, also HDL tools available for free are limited to particular size of FPGA and this is main limit for Amiga users/developers - cheap platform and tools - as i pointed earlier - perhaps only hybirdi sollution (FPGA + some fast ARM with JIT to run MC68000 code is reasonable way to make fast MC68000 replacement but... IMHO there is no sense to go above reasonable limits in Amiga when Amiga technology can be used on modern CPU's).

[majsta]

Yes I agree but I just wanted to stop discussion about C68000 because I was receiving lot of mails why I don't use that core, and also this topic on eab was related to that.

[pandy71]

Originally Posted by majsta

Yes I agree but I just wanted to stop discussion about C68000 because I was receiving lot of mails why I don't use that core, and also this topic on eab was related to that.

Sorry then... and my advise - use filter to bounce annoying emails...

[alexh]

Originally Posted by pandy71

perhaps only hybirdi sollution (FPGA + some fast ARM with JIT to run MC68000 code is reasonable way to make fast MC68000 replacement

Sounds like you want a Xilinx Zynq. Inlcudes lots of hard macros Arm Cortex A9 dual core @ 667MHz, DDR3 core, USB2.0 core, Ethernet core, Flash core, with an integrated FPGA for handling the 68000 bus. They are about $50 USD for the smallest one.

You've already solved the 3.3v issues with the Vampire. The PCB production would be the hard part (multilayer & BGA)

http://www.xilinx.com/products/silic...7000/index.htm

[pandy71]

Originally Posted by alexh

Sounds like you want a Xilinx Zynq. Inlcudes lots of hard macros Arm Cortex A9 dual core @ 667MHz, DDR3 core, USB2.0 core, Ethernet core, Flash core, with an integrated FPGA for handling the 68000 bus. They are about $50 USD for the smallest one.

You've already solved the 3.3v issues with the Vampire. The PCB production would be the hard part (multilayer & BGA)

http://www.xilinx.com/products/silic...7000/index.htm

Something like this, but i also see some benefits from PowerPC integrated with FPGA or even without tight integration - separate SoC and separate FPGA on board, perhaps with IOMMU to capture data from DMA channels and translate to something modern (Amiga native graphic as window over 24 bit RGB plane, similar with sound) and why not, whole Amiga SoC implemented on FPGA with additional PowerPC or ARM (MIPS?) SoC.
I've still searching but for example some features of PIC32 family looks nice - even for old Amiga as inteligent IO with 80 MIPS 32 bit CPU, i can even imagin to run virtual web browser on chip, perhaps even with own graphic buffer...

btw Altera version of Zynq http://www.altera.com/devices/fpga/s...tx10-index.jsp

Apple made this twice - first moving from MC68k to PowerPC and later from PowerPC to x86 and looks like they consider to move once again to ARM from x86 http://www.extremetech.com/computing...rom-x86-to-arm .
As Amiga is hobbyist platform i don't expect to have high quality Rosetta like JIT but once again there is a light in a tunnel (1 light not 2 - 2 means there is a train in a fornt of you and you should run...) http://www.phoronix.com/vr.php?view=MTQ4NDY

But i think we drifting away to much.

So back to topic.
I also doubt on performance from mentioned core - looks like (from core datasheet) figures are around 150MHz for 2 grade of Stratix, so for fastest core this can be around 200MHz maximum... and Cyclone from topic author... perhaps 50MHz maybe 80MHz but bellow 100MHz for sure as Altera NiOS II working with around 150 - 170MHz on Cyclone and up to 340MHz on Stratix V - TG68 should be capable to achieve same or similar speed as a commercial 68k core.