Subject: RE: [stella] WSYNC again (3 or 5 clocks?) From: Erik Mooney <emooney@xxxxxxxxxxxxxxxx> Date: Mon, 31 Jul 2000 09:14:09 -0400 (EDT) |
> The non existing extra clocks for WSYNC costed me a lot of time, when i was > developing the Thrust kernel. > To the guy who gave me (us) that wrong information: @!#% GRRR!!! I could just keep quiet here, but I'll apologize :) I was one of the guys who did some testing on that a long while back. I concluded that WSYNC did in fact need one or two extra clocks. Unfortunately, it turned out that I had made a mistake in my test code. My playfield kernel had a WSYNC, then a long string of NOPs, then DEC and BNE. Problem was, the BNE was branching across a page boundary, which uses one extra cycle, and I didn't realize this was happening until a long while later... :( -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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