21–26 of 26 posts
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Temperature? Really? How does that work?
If you program a register at a moment and in a way that causes two signals to "collide", the result effectively depends on transistor behavior. That in turn can be temperature dependent. For an example on the PC see https://int10h.org/blog/2023/03/cga-6845-crtc-phantom-vsync-...
Where can I find more writeups like this?
Pretty incredible! I’m on mobile right now so I can only comment on the demo that runs automatically, which I understand isn’t the _point_. :) More about the demo: https://www.vogons.org/viewtopic.php?t=89435 (For those unfamiliar with “demo” in this context, see https://en.m.wikipedia.org/wiki/Demoscene ) I look forward to checking out the features you mention on a proper computer.
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One of my neighbours in Sydney sold a board he made in his garage, that gave you an extra ten slots, which I filled with way too much RAM. Sort of like a homebrewed 5161, before the 5161 existed.
That's kind of neat. Did he just extend the bus in a "raw" fashion or put buffers on it? (The downside of the 5161 was any memory device in the 5161 had an extra wait state thanks to the speed of the buffers, which were necessary to deal with the capacitance on the cable to the expansion unit.)
commenting for posterity, and to say the web emulator is very slick, i have some dos diskettes to try out.
Earlier quoted context omitted.
Temperature? Really? How does that work?
If you program a register at a moment and in a way that causes two signals to "collide", the result effectively depends on transistor behavior. That in turn can be temperature dependent. For an example on the PC see https://int10h.org/blog/2023/03/cga-6845-crtc-phantom-vsync-...