Recent content by jim11662418

Here's a board you could build.

I know this is an old thread but I was late to the party... Here's my take on Pete McCollum's T-11 SBC. My thanks to Pete for his help in getting it working.

Attached is a simple example of a bios extension that helped when I was trying to figure this stuff out.

Thanks

Very interesting. May we see your Tic-Tac-Toe and Life games?

I have 'CTS256A.ASM' edited so that it assembles with the Macro Assembler AS. I'll send it to you.

I was relating to a colleague my tale about troubleshooting memory issues on a XT clone motherboard with 640K RAM on board. I told him that I had found a defective 256K RAM chip and a defective 64K RAM chip. I said that I had a replacement 256K chip on hand but that I would have to order a 64K...

I use the Macro Assembler AS.

Dental floss hack...

Thanks.

Well done. Please let me know about the mistakes in the schematics that you found so I can correct them.

Typically the results of the keyboard scan are returned in the accumulator of the Z80 CPU. In other words, it’s all internal to the CPU. It doesn’t really exist as something you can pass through a KVM.

Found the answer to question 1: "YUV Pixel Double".

Impressive work! I have two quick questions: 1. How do I "join up the dots" to make my display look like the third picture above? 2. Do I need to explore all the menu options or will I only be getting myself into trouble? Thanks.

If you like my 4004 SBC, you might be interested in my Intel 8008 Single Board Computer.