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This file pcie360_0_1_20120413.zip contains the VHDL code for the FPGA implementation of the 2065 emulator (incomplete, but capable of some elementary operations from the console panel). Here's the description from the top-level file (pcie360.vhd):

This is the design for an FPGA implementation of an IBM 2065 CPU emulator. As I have insufficient documentation on the IBM 2065, and because I don't have a copy of the ROS contents of the 2065, this is really an IBM 7201-2 CE emulator with 7201-specific bits stripped out.

Major subcomponents are:

  • cpu - actual CPU emulation
  • blinken - interface to an IBM 2065 console panel w/shift registers
  • corememory - 256 KB of main memory (dual-ported between cpu and ioce)
  • ioce - interface for the IOCE emulator running on the PC
  • pcie - PCIE endblock to communicate with the PC (*)

This design is intended to be implemented on the Xilinx ML509 / XUPV5 developer board.

(*) A Xilinx PCI Express Endpoint Core example design needs to be added for this design to work. I cannot include that here because of copyright restrictions.

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