The ZX Spectrum Next forum

Aren't the border colours 128..135?

"and the aforementioned "demo program" adopts a "wide" resolution graphic screen." ?? it's using ordinary ZX Spectrum graphics - but does use the precise timing to change border colours in sync with paper/ink area, and does "multicolor" paper/ink attribute area changes to get the desired result at s...

should_draw_pixel(x,y) = ((x1 < x2) ^ ((x1 <= x) ^ (x <= x2))) && ((y1 < y2) ^ ((y1 <= y) ^ (y <= y2))) (^ is XOR, && is AND) Does seem a bit expensive when you can easily do ( and its a lot easier to read ) should_draw_pixel(x,y) = (x >= x1 ) && (x <= x2 ) && ( y>=y1) && (y<=y2) sounds like you co...

In "(R/W) 0x17 (23) => Layer2 Offset Y" - any chance to define in documentation, what happens for values above 191? Or do you want to keep it "UB"? The last time I tried it, the hw fetched layer 2 data past the end of the 48k that layer 2 occupied. It's undefined behaviour :) Ok, so just document i...

In "(R/W) 0x06 (06) => Peripheral 2 setting:" ... last line "Audio chip mode (00 = AY, 10 = YM, 10 = Disabled)" ... that's @10 "10" values, which is a one too many. In "(R/W) 0x17 (23) => Layer2 Offset Y" - any chance to define in documentation, what happens for values above 191? Or do you want to k...

I would read low byte and then high byte. In case it will flip between from FF->100, you will end with scanline 511, i.e. way beyond maximum possible value (and you can safely patch it back to 0x100 without further read, or you may loop once). As long as resulting value is within correct range, it s...

Sounds like what makefile does for 40 years, but now you have it with your own custom code and unclear rules... :) (don't take it like *personal* attack, I fully understand mastering makefiles is not simple, and actually most of the makefile use in real world projects makes me cringe anyway, it's ju...

Maybe you can actually train some "AI" neural network to work as dynamic screen filter, especially if you would manage to modify the game code to produce one key frame of background only (for non-scrolling games), then the remaining frames with sprites drawn it would be post-processed.... not sure i...

no.

There was one guy starting project https://www.worldofnext.org/ ... not sure if he's still alive and if it will work well. It should resemble "world of Spectrum" web, but with next specialization, although I guess if you know how much effort is behind WoS, you know this is more like... advertisement...