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  • The 100 MHz 6502

    From Oli@21:3/102 to All on Thu Oct 14 10:54:57 2021
    The 65F02 is a FPGA based 65C02 replacement that fits into a 6502 DIP socket.

    http://www.e-basteln.de/computing/65f02/65f02/

    Cyberware for retro computers.

    ---
    * Origin: 1995| Invention of the Cookie. The End. (21:3/102)
  • From Spectre@21:3/101 to Oli on Sat Oct 16 10:55:00 2021
    The 65F02 is a FPGA based 65C02 replacement that fits into a 6502 DIP socket.

    Boggle, what exactly would you do with it? I guess you'd have to be homebrewing something. I can't imagine you'd drop it into your 6502 socket
    and hope for instant overclock, the antique would never keep up with it..

    Spec


    *** THE READER V4.50 [freeware]
    --- SuperBBS v1.17-3 (Eval)
    * Origin: A camel is a horse designed by a committee. (21:3/101)
  • From Oli@21:3/102 to Spectre on Sat Oct 16 06:50:28 2021
    Spectre wrote (2021-10-16):

    The 65F02 is a FPGA based 65C02 replacement that fits into a 6502
    DIP socket.

    Boggle, what exactly would you do with it? I guess you'd have to be homebrewing something. I can't imagine you'd drop it into your 6502
    socket and hope for instant overclock, the antique would never keep up
    with it..

    The details are in the linked article. It works in the Apple II, Commodore PET and they use it in old chess computers too. Speed bump is only internal, communication with the antique is slowed down.

    ---
    * Origin: 1995| Invention of the Cookie. The End. (21:3/102)
  • From Spectre@21:3/101 to Oli on Sun Oct 17 02:33:00 2021
    The details are in the linked article. It works in the Apple II, Commodore PET and they use it in old chess computers too. Speed bump is only internal, communication with the antique is slowed down.

    I didn't actually look at the article.. and I'll usually jump on anything 6502ish.. anyhoo.. that makes it sound a bit like the old accelerator cards
    for the Apple II at least anyways. They used to be system on a card, although this would be system on a chip. Actual useful system speed could vary
    wildly. It could usurp the system by asserting the DMA or interrupt line not sure which now, at which time it could run full boar, but access to the
    system BUS required a return to 1Mhz as did video refresh. So there's kind
    of a diminishing return the faster you go.

    Spec


    *** THE READER V4.50 [freeware]
    --- SuperBBS v1.17-3 (Eval)
    * Origin: A camel is a horse designed by a committee. (21:3/101)
  • From Spectre@21:3/101 to Oli on Mon Oct 18 20:11:00 2021
    The 65F02 is a FPGA based 65C02 replacement that fits into a 6502 DIP socket.

    Boggle, what exactly would you do with it? I guess you'd have to be

    Turns out the thing sucks your system memory/ROM into on chip memory which is 64k. This sounds fine but will only work on an Apple II I think we 48k or less. As the device has no idea about memory mapping schemes. Off hand the upper 16k in a II/II+ is bank switched.

    So its only going to be of any value in low memory, flat memory model
    systems. Like the original IIs no point putting this in a IIe. And your PET not sure what else is out there.. apparently some early chess systems also.

    Spec

    Waiting for the fully functional 65c816 at 100Mhz or better :)


    *** THE READER V4.50 [freeware]
    --- SuperBBS v1.17-3 (Eval)
    * Origin: A camel is a horse designed by a committee. (21:3/101)