Welcome, Guest. Please login or register.

Author Topic: FPGA Replay Board  (Read 822508 times)

Description:

0 Members and 18 Guests are viewing this topic.

Offline Antiriad

  • Jr. Member
  • **
  • Join Date: Jan 2005
  • Posts: 62
    • Show all replies
Re: FPGA Replay Board
« on: September 12, 2014, 05:24:36 AM »
Quote from: JimDrew;772788
We have been testing with caches off to try to eliminate one more layer  of potential issues, but the last thing I seem to remember from Mike was  a peak was around 106MHz 020+.  There can be improvements though from  there.  Mike is in the process of actually dramatically slowing down the  entire chipset because that is one of the issues with some games not  working... they bang on the custom chipset bus, expecting the operation to  act as a throttle mechanism.  Right now, there is no throttle!  Mike has  a provision in the OSD (on screen display, which the menu system) for  selecting 68000, 68010, 68EC020, and 68020 CPUs (and there is also the  chipset type there).  I am hoping we can add a 68040 mode w/MMU and  FPU.  There is plenty of space left in the FPGA for that - fortunately,  it's a big FPGA that's used in Replay.  There is also PicassoIV RTG  support.

I am distributing only to North America.  Purchases  outside of North America can be made through one of Mike's  distributors.  I do ship my products world-wide, and mark them so that  there is no (or very little) duties that are due.

Any news on the pre-order list from cbmstuff? Some of us in the US are trying to get hold to some of these boards.

Thanks