"...and then installed into an H8 chassis" ... or in an Altoids tin...
I had thought about this to reproduce another pet-project of
mine, the Honeywell 200/2000 mainframe computer. But for that
there is very little detail on the hardware implementation. In
that case, I would have wanted it to be a true implementation of
the original hardware, to answer questions about how the CPU
actually worked.
Last time I worked with FPGAs, 20 years ago, they had to be programmed via JTAG. These days I think it's easier, and I believe they even have non-volatile programming now. There are tools for converting things like VHDL (hardware description language) into FPGA programs, which is probably the best way to implement it (analogous to having source code and compiling it). There may be VHDL available for some of the ICs as well, although it may be easier to simply write (most of) the H8 "simulation" as VHDL.
Cool idea, but I have no clue about the practicality of it. I've
always wanted to get into making my own FPGAs.
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There is an article with introductions to FPGA that uses the Altera FPGA to create a Z80 that can be run at 50MHz. Perhaps something can be leverage to make this easier as it provides everything.
http://www.s100computers.com/My%20System%20Pages/FPGA%20Z80%20SBC/FPGA%20Z80%20SBC.htm
Norberto
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