Emulation, again

A project log for PZ1 6502 laptop

I am building a laptop with a W65C02, lots of memory, SID-sound, decent graphics and a filesystem.

adamklotblixtadam.klotblixt 01/18/2024 at 08:410 Comments

Going on vacation, I wanted to have something to do in the evenings and early mornings. I decided to bring a Raspberry Pi Pico with only an SD-card attached.
The emulation library vrEmu6502 is really nice: nicely coded, can emulate 65C02, compact and quick. I now have a PZ1 version running on the Pico with 208KiB RAM, which makes it possible to run the 16KiB scheduler, 64KiB ehBasic and 2 full 64KiB tasks. I plan to try out some virtual memory magic later.

Coding this version has made me realize some simplifications to the real HW implementations, which is nice.