I’ve just watched Dave Murrays demo of his “Vera” video card moving some balls round the screen. Initially confused by how it was working, but now understand that it’s to do with the way the colour works in text-mode, so … Continue reading
Category Archives: atmega
Ultimately I wanted a 65C816 system but initially settled on the 65C02 for many reasons. One was that round about the same time another ‘816 project was announced (and subsequently a 2nd, and as of today a 3rd!) so I … Continue reading
This is just a short follow-up to the last post; Comparing BASICs… There, I talked about the differences between BBC Basic and what was effectively a Microsoft BASIC (EhBASIC), however I decided to take a few moments and have a … Continue reading
Ruby 6502 has been running well on it’s PCB for some time now and interestingly enough (and curiously!) during the past few months other 8-bit projects have sprung up… This started probably about a year back when Dave, the 8-bit … Continue reading
I’ve not done too much with Ruby 6502 in the past few months, however I decided to get a PCB made up for it and I’m happy to say it’s working fine. Well, almost. A few little notes on the … Continue reading
Another software update here – this time thoughts about implementing a filing system. It would be far too easy to get carried away and start looking at modern systems – e.g. Unix/Linux/VMS where there are a plethora of good filing … Continue reading
How does it work? The 6502 (or W65C02S in our case) is really designed to have some ROM (or modern flash, etc.) to enable it to boot. At power on or reset, it reads an address out of a fixed … Continue reading
A 6502 SBC: Working prototype To mark my own use and knowledge of 40 years of the 6502, I decided to build my own little single board computer (SBC) based on it. I had a few ideas in-mind – one … Continue reading