Obtainium Retro's latest activity

The video system I created can have any arbitrary resolution from 160x120 to 1024x1024 in even numbers. It supports 1/2/4/8/15/16 bits...

I've been out of action for a few days. Now I'm catching up with work and opening all the packages that came while I was distracted...

Some small items of progress and some clarification today. Clarification first. I'm not only building a 680X0-based PC. I'm starting by...

This is gold! :D Thank you.

Can you tell me more about that?

YA, to use a Super I/O chip from an Intel based PC clone would be the ideal way to go. Easy to interface to other microprocessors and...

I wasn't going to reply to this entry but I decided may I should as others haven't. .. You should also look at the ROM memory paging...

It has some advantages, in providing a lot of civilized and trainable IO ina very compact and affordable package. It comes unstuck a...

I cannot contribute much (don't even have a QL) but I recently found out about the SuperIO and thought about how it could be used with...

There are many SuperIO. The fun part is that most have a compatible group of parts that use verty standard interfaces. I love that the...

With a little more thinking, one of my earlier ideas above has been ruled out as impractical. The idea of having a processor direct slot...

One thing that has become increasingly true in recent years is that if we're to build satisfactory machines we need to have multiple...

Any system that has ever gone anywhere and that wasn't portable/pocket-sized has some form of expansion. Maybe a cartridge port, maybe...

As this board is designed to fit in a MicroATX format there are some elements of the design that are defined by standard. One is the IO...

I made a conscious decision to not post it there but in some parochial place where few QLers might go. I've famously not released quite...