three2em Posted October 27, 2015 Share Posted October 27, 2015 Hey again, Sorry for another noob question, but I can't find this in a search. Is there a last cycle that you can confidently call WSYNC on? I'm aware that it eats three cycles, but I always believed that you needed to call it by cycle 72, with the idea being that if you called in on 73, the WSYNC wouldn't happen until the very end of the scanline, telling the TIA to wait until the end of the following scanline, however in the kernel I'm working on, I'm forced to call it on cycle 73, and on an emulator, it works! But I'm still worried that this won't be the case on all Atari 2600s. Can I proceed confidently? Thanks. Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted October 27, 2015 Share Posted October 27, 2015 73 is correct. I had the same question when I started developing for the 2600. And the answer I got was all wrong. 1 Quote Link to comment Share on other sites More sharing options...
three2em Posted October 27, 2015 Author Share Posted October 27, 2015 Thanks. What a load off my mind Quote Link to comment Share on other sites More sharing options...
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