Minimig update: scanline emulation

[boing4000]

Hello,

I like to release another core with a new visual feature: scanline emulation.
This is an already known effect in some other products e.g. emulator or the Indivision-AGA flicker fixer to let the VGA screen look like an old 1084 (PAL/NTSC) Monitor. Even on TFT/LCD screen this effect make the whole picture smooth and less artificial looking caused by the doubled line buffering.
Combined with horizontal interpolation Minimigs VGA output has the same look-and-feel as an old 15KHz Amiga monitor or even TV screen.

The scanlines can be disabled by closing the spare i/o jumper pin 5-6. No jumper will activate the scanlines (default). Also in vertical interpolation this effect is turned off. I did not try both effects in combination but it would make no sense to have 2 vertical visual effects on the same picture.

More to download in here

[boing4000]

AFAIK RedSkullDC was or is still working on it. It may not be difficult to do but the A4000 kbd don't provide the OSD control keys. So you will always use a joystick and the menu button on the Minimig board.
Of course this also can be adapted by using eg. +, - and Enter on A4000s numpad while OSD is visual. A bit harder would make Minimig both ps/2 and Amiga keyboard compatible with some kind of auto sense.

[boing4000]

Thx Darrin, Minimig will always be interesting to me! As long as the fpga has some space left, all functions can be reimported.
Scanline emulation dont take much space, so I belief it may still fit into the next core release :-)

I can try to make an A4000 keyboard work on Minimig, but this will be a fixed state without auto sensing or switching between ps/2 or amiga key code. Perhaps in time it could be switchable... somehow