sage Posted September 9, 2018 Share Posted September 9, 2018 Anyone played bit with algo3? Even so the EPXY doc says "algo 3 is broken"? It seems that some circuits are left which work, but mainly for Y. Quote Link to comment Share on other sites More sharing options...
+karri Posted September 9, 2018 Share Posted September 9, 2018 I remember seeing this note at some point in time. What was algo3 supposed to do? Quote Link to comment Share on other sites More sharing options...
sage Posted September 9, 2018 Author Share Posted September 9, 2018 as far as I can tell, it should use a 16 bit mask to select the pixels from the sprite. in Y it somehow seem to do something (but somehow only every second line), but it wont work for X, will stop after few columns. Quote Link to comment Share on other sites More sharing options...
enthusi Posted September 9, 2018 Share Posted September 9, 2018 You probably saw it here: FC81 = SPRCTL1 Sprite Control Bits 1 (W)(U) reset x,x,x,x,x,x,x,x B7 = literal attribute, 0=normal, 1=totally literal B6 = Sizing algorithm choice, 0=adder (algo 4), 1=shifter (algo 3) SET IT T0 ZERO!!!!, algo 3 is broke Not too helpful, though. Quote Link to comment Share on other sites More sharing options...
sage Posted September 10, 2018 Author Share Posted September 10, 2018 I found a better description somewhere Quote Link to comment Share on other sites More sharing options...
+karri Posted September 10, 2018 Share Posted September 10, 2018 Thanks. Actually I don't really need masked stuff anymore. The "shaped" version combined with a programmable start quadrant takes care of my needs. The only slight problem I have is that tilt/stretch tears the sprite from the anchor point. So in order to tilt my car I need to keep the sprite in one segment. Quote Link to comment Share on other sites More sharing options...
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