Subject: RE: [stella] 6502 question (was INV+ ... ) From: "Lee Fastenau" <stella@xxxxxxxxxxxxxxx> Date: Wed, 7 Apr 2004 02:26:53 -0500 |
> >I'm asking because I'm trying to do something crazy: hit > >RESP0 and RESP1 with fewer than 3 cycles difference. > > > I dunno if this is exactly what you have in mind, but it seemed > like an interesting exercise. > > (It's a bunch of 11 pixel wide sprites) > > Works fine on my Supercharger. Neat trick! I made a slight modification to visually take advantage of the 5-pixel overlap. So the RESP0/1 strobes are 1 cycle (3 pixels) apart, in reverse order... Wonder if some insane programmer out there has used the JSR trick in conjunction with an actual jump to a subroutine... and then re-strobed RESP0/1 upon RTS along with RESM0/1. :) -Lee
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