5 Feb
2021
5 Feb
'21
4:47 a.m.
On Thu, Feb 4, 2021, 17:40 Adam Thornton <athornton(a)gmail.com> wrote:
I'm probably Stockholm Syndrommed about 6502.
It's what I grew up on, and
I still like it a great deal. Admittedly register-starved (well, unless
you consider the zero page a whole page of registers), but...simple, easy
to fit in your head, kinda wonderful.
I'd love a 64-bit 6502-alike (but I'd probably give it more than three
registers). I mean given how little silicon (or how few FPGA gates) a
reasonable version of that would take, might as well include 65C02 and
65816 cores in there too with some sort of mode-switching instruction.
Wouldn't a 6502ish with 64-bit wordsize and a 64-bit address bus be fun?
Throw in an onboard MMU and FPU too, I suppose, and then you could have a
real system on it.
Sounds like a perfect project for an FPGA. If there's already a 6502
implementation out there, converting to 64 bit should be fairly easy.
-Henry