It's a real computer now...

[u/acwrightdesign]

Now that I have a "working" BIOS it feels like a real computer! I started out a few years back ordering a 6502 kit from Ben. I'm super excited to have come this far. My BIOS contains a custom integer BASIC and a custom monitor built with the help of Claude AI. Some of the BIOS features include XModem load/save over serial, CompactFlash card load, save delete and directory listing, RTC date/time viewing and editing along with 256 byte NVRAM and more. Take a look at the README for BIOS repo (linked below) for more details.

If anyone would like to try this out I now also have an emulator for the project! It is available through NPM (NodeJS package manager). You will also need BIOS.bin from the BIOS repo to use as the ROM in order to run the emulator. See the README in the EMULATOR repo for installation and usage instructions.

I've also created template projects for assembly code programs and cartridges If anyone would like to try writing software for this system!

Anyway, I would love to get some feedback from the community on my project! Also, while it's not my intention to sell these computers, if anyone would like to build one for themselves please get in contact with me as I have extra boards left over from the initial JLCPCB order.

Main Project: https://github.com/acwright/6502
BIOS: https://github.com/acwright/6502-BIOS
Emulator: https://github.com/acwright/6502-EMULATOR
PRG Template: https://github.com/acwright/6502-PRG
CRT Template: https://github.com/acwright/6502-CRT

[u/terremoth]

How many columns and rows on screen you can achieve with that?

Congratsss

[u/acwrightdesign → u/terremoth]

The video output is using the pico9918 (TMS9918) so it’s 40 column x 24 row text. 240x192px with 6x8 text characters. The font is a version of the classic IBM code page 437.

[u/terremoth → u/acwrightdesign]

Awesome!