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ZXNet echo conference «hardware.zx»

From Pavel Fedin To All 5 December 2006

Hello, All I remembered here the bookmaker with its “double” screen (the video mode of which essentially depends That’s why we display it on a black and white or color display) and I thought of the following simple solution. What if we implement a b/w mode? What if we have a certain port, with record "1" which includes remixing of color signals, and we do we get b/w video even on a color monitor? Pros: 1. Possible implementation in the form of an adapter that connects between the video output spec and monitor (based on the Graffiti principle on the Amiga). Well, of course, not counting need to connect to the system bus. But still missing intervention in the existing VC. 2. The amount of video memory does not increase and working with it does not become more complicated or slows down. On such a screen, IMHO, you can play quite decent b/w without any problems video in 16 shades of gray. Precisely at 16, using attributes. Encode video it is possible according to the MPEG principle - by selecting macroblocks of size 8x8, inside which the attribute represents the darkest and lightest color, the rest is dither. This is much better than the two colors available in our usual toys. A more complicated version of the system - the ability to display only part of the screen in black and white form, but this will require intervention in the existing VC.

From Max Kuleshov To All 5 December 2006

Hello Ronin This is like an extension that fits into the ideology of what is speccy? :)

From Victor Ronin To All 5 December 2006

Hello Sonic then the palette is both clearer and more universal.

From deathsoft To All 5 December 2006

Hello Sonic The video output of the spec already has a full B/W video signal output, which can be connect to either a B/W TV, a color TV, or a PC TV tuner.

From Dmitry Malychev To All 9 December 2006

Hello, Black_Cat Laugh. :v2_lol; Unscrew; Is the color level on the TV/monitor at zero unsatisfactory?

From Valery Tkachuck To All 9 December 2006

Hello Lethargeek Let> Turn the color level on the TV to zero The question is not the implementation, but whether the b/w mode is needed and for what applications?

From Dmitry Malychev To All 9 December 2006

Hello, Black_Cat Bla> The question is not the implementation, but whether the b/w mode is needed and for which Bla> applications? Then go to “Programming” or I don’t know where else... The back is not useful at all, there are two bits per pixel.

From Dmitry Malychev To All 9 December 2006

Hello, Black_Cat Then go to “Programming” or I don’t know where else...

From Pavel Fedin To All 26 December 2006

Hello Ronin Ron> then the palette is both clearer and more universal. Another bad idea ;) - but the palette is also implemented with overdrive... 8 colors at least, and if you also pull out Bright separately, then all 16.