[TUHS] Blit source

emanuel stiebler emu at e-bbes.com
Tue Dec 17 16:04:42 AEST 2019

On 2019-12-16 12:06, Paul Ruizendaal wrote:

> It would seem that the circuit was intentionally simple and straightforward: a M68K cpu, ram, rom, two 6850 UARTS and the circuit to drive the display. The key aspects of the video circuitry (and mouse circuitry) are discussed in this paper:
> https://9p.io/cm/cs/doc/87/archtr.ps.gz ("Hardware/Software Tradeoffs for Bitmap Graphics on the Blit”).
> It would seem to me that doing a version of the Blit that runs on a FPGA board and generates 720p HDMI output would not be impossible to do, 
It actually pretty simple, all this stuff is avalable on AMIGA emulators
for FPGAs ...

> if the software can be configured to deal with a different geometry (e.g. 1024x720 instead of 800x1024). Whether that would be much different from running the emulator on a PC remains unclear, of course.

It is on my list of things to do, but not on the first page ;-)
Still waiting, that schematics & sources show up ...

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