After I was happy running GIBL (my 6502 TinyBasic) on my Ruby board, I thought about porting it – I also thought about a new project I’d like to do over the winter solstice period, so before tackling that project … Continue reading
Tag Archives: retro
For a long time I’ve been writing Mandelbrot programs for fun and recently to act as a benchmark for some retro BASIC systems. The output has been variable from simple ASCII text to high resolution colour graphics. For retro systems… … Continue reading
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
At this point, I have a nice little 65C02 system with 64KBytes of RAM, a little “monitor” with serial interface. I can run Applesoft, ehBasic and BBC Basic. Where now? Well… without really trying (nor setting out to do this … Continue reading
Testing the Ruby 6502 After making it on breadboard, I was already relatively confident that it would work on stripboard and my initial testing went well. I could access the shared RAM from the ATmega, write test patterns into it, … 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