Some interesting links….

• Backface Culling
• Commodore Hacking 6502 3D Tutorial
• Mode7 Chunky Graphics Mode
• Sony Playstation GTE Co-Pro Documentation
• Commodore Hacking 3D Part 2
• Commodore Hacking 3D Part 1
• Fast 6502 Multiplication
• 6502 Instruction Set
• Cleaning 5.25” Floppy Disks
• Formatting CF cards for use with RISC OS
• CF Cards for A5000
• Disk Cloning on BBC
• BeebVSC
• How BBC Speech worked
• BBC Shadow RAM
• Tiny bitmap fonts
• BBC Micro full memory map

Refurbishing old computers

A310

• A310 dead power supply
• A3020 repair = http://ezcontents.org/acorn-archimedes-a3010-repair
• a310 buzzing psu fix - https://stardot.org.uk/forums/viewtopic.php?f=16&t=5933
• archimedes ps2 mouse - https://stardot.org.uk/forums/viewtopic.php?t=13133
• a310 upgrade retro-kit - https://www.retro-kit.co.uk/page.cfm/content/Acorn-BBC-Archimedes-A310-RISCOS2/
• installing ide sd card in archimedes - https://stardot.org.uk/forums/viewtopic.php?t=11044
• ide to sd adapter ebay - https://www.ebay.co.uk/itm/NEW-HOT-SD-To-3-5-40Pin-Male-IDE-Hard-Disk-Drive-Adapter-Card-3-5-IDE/351131265761 (possibly not the correct one, requires st401 version - out of stock now - https://www.amazon.co.uk/Sintech-ST4012-female-adapter-ID6879/dp/B001OY0OKW) old acorn ide implementation is not always compatible with new ide gear

Noobie hardware guys Working with PSU’s is dangerous, capacitors can retain upto 300V+ DC charges. You have to work carefully and safely. Here’s how to discharge them safely: https://www.circuitspecialists.com/blog/discharge-capacitors-in-switch-mode-power-supplies/