On Mon, May 2, 2016 at 1:32 PM, Stephen Adolph <[email protected]> wrote:
> ok, here is a proposal. Let's get a small FPGA and make an 80c85V2 > that includes extra instructions...make it retro compatible. > > Well the first question would be: how will you hook them in? Would they all be two-byte instructions? Would you have to deprecate/redefine one of the "undocumented" instructions? At least the BASIC ROM doesn't use the undoc'd instructions. Anything recent could be recompiled. The other question would be power. You were the one who explained to me that FPGAs can be power hungry, years ago during ReMem dev. Perhaps that has changed in the last decade (we've known each other longer than that :-) ). Or, I wonder could an 8085 core fit in a CPLD? -- John.
