Hi Garth,
Thanks for your URL - much appreciated.
With regards to the 32-bit 6502, I also considered that whilst writing my emulator but decided to keep it to spec without letting my inspiration and interest run away with me and end up writing an emulator for a non-existent CPU
However, I have already decided to write a advanced version when I have fully tested what I have.
Fortunately the entire thing can be configured with just a few variables in a PHP script, so can easily duplicate a 32, 64, 128-bit and onwards CPU.
I also want the advanced version to support all the addressing modes, as well as interrupts and a few of the other things I have deliberately excluded.
Anyway, thanks again for the URL.
Paul