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VGA for the IIgs - Different Approach?
- Subject: VGA for the IIgs - Different Approach?
- From: IUnknown <stevementzer@gmail.com>
- Date: Fri, 7 Oct 2011 21:07:15 -0700 (PDT)
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Just thinking out loud here.....
- expansion card
- shadows the IIgs memory
- some sort of glue logic / prom to package the active frame buffer
(and other state) and send it out as an ethernet broadcast @ 15fps
- software on windows/mac that listens for the broadcast and displays
on a PC
Not an easy project at all - but might be cheap enough to produce.
- logic for handling dithering, etc would be entirely client-side.
upgrading the logic/fixing bugs is not a firmware/hardware update....
but software.
- 100mbps is plenty fast enough to produce the 'video stream' @ 15hz
and would have low enough latency as well.
- no IP stack is required... simple ethernet frame broadcasts.
Overall, some combination of FPGA, ethernet chip, prom, coprocessor,
buffer memory and assorted logic would be required.....