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A comment on Amiga Forever. Parent comment

Re:Amiga Forever by actionfromafar on Tuesday December 20, 2022 @08:10AM (#34065356)
Commodore had an extremely expensive, weird 15Hz flicker free monitor and very high resolution monitor. If I recall correctly, it divided the screen in 4 rectangles and painted each rectangle as a mini screen, one after another. That would have been a lot of flickering, except that the phosphor was very long glowing.
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Re:Amiga Forever by mgk123 on Tuesday December 20, 2022 @08:27AM (#34065543)
That would be the A2024 which is emulated by WinUAE. It did not flicker or have long persistence phosphor. What it did have was frame buffer RAM on-board. The video signal output by the Amiga determined which 1/4 or 1/6 of the screen was refreshed. The driver code had a feature where the pane containing the mouse pointer could be refreshed more frequently.
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Re:Amiga Forever by actionfromafar on Tuesday December 20, 2022 @08:58AM (#34065915)
Whoa! That's a rudimentary compression scheme to decrease latency.
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Re:Amiga Forever by mgk123 on Tuesday December 20, 2022 @03:18PM (#34071898)
If you want to know the details of how it works, see US patent 4851826: https://patents.google.com/patent/US4851826A/en

BBoAH has a pic of an actual A2024: https://bigbookofamigahardware.com/bboah/product.aspx?id=863

There was also a separate video card containing the framebuffer hardware, that could be connected to a "normal" high-res mono monitor: http://amiga.resource.cx/exp/moniterm

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Re:Amiga Forever by rbanffy on Wednesday December 21, 2022 @12:41PM (#34083815)
There are brilliant hacks and terrible kludges. This is the latter.

Yikes!

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