Stefan Drissen wrote: > Cool - I can't remember seeing this on my real SAM. Is it > emulator only (or just my memory).
Just your memory ;-) > Is the single pixel wide border effect achieved by using two slightly different black tints? It's generated by switching between a coloured border with the SOFF bit set and a black border with SOFF clear. Strictly both should be black, but a hardware quirk means you see a tiny flash of the colour between the screen being re-enabled and the new border colour being set. It's actually even narrower than a mode 3 pixel, but the SimCoupe display resolution means a mode 3 pixel is the narrowest I can show. It's not even limited to the border area either, since the ASIC isn't fetching display data when SOFF is set over the main screen. Try this: POKE 32768,243,62,128+7,211,254,175,211,254,195,1,128 : CALL 32768 The stripes over the main screen are spaced further apart because contention slows the CPU as soon as the screen is renabled. It shows the ASIC defaulting to border colour in the absense of display data, as it does around the main screen already. > btw - great stuff on the emulator Si! Cheers! Your MOD Player should sound sweeter than ever with the latest version, with some of the buzziness of 0.81a now cured. :-) Si
