Subject: Re: [stella] Sorry gang THIS is the final version. Really! From: Eckhard Stolberg <Eckhard_Stolberg@xxxxxxxxxxxxxxxxxxxxx> Date: Mon, 14 Sep 1998 18:19:21 +0200 |
At 01:28 14.09.98 -0400, you wrote: >I do have a question though about this clock on PAL systems. Will it run >accurately? The framerate is determined by software and my software runs >at 60fps (almost) and the framerate is the seed for the clock routine >so wouldn't it still run the same on a PAL system? I left your program running only for a few minutes, but it seems, that it looses about half a second every minute. That would confirm the theoretical loss of 11 minutes per day, that I posted about two days ago. I took a quick look at the source code and counted only 242 scanlines per frame. That is probably the reason, why you had to fix the time so often. Also you should do a STA WSYNC before you turn on VSYNC, in order to make sure you do three full scanlines of VSYNC. To improve usability, it might be a good idea to make it possible to reset the seconds and the frame counter to zero, or the clock would always be off for a couple of seconds. And you shouldn't name the source code files .BIN or you might accidently loose it by compiling a binary over it. Besides that it is confusing for the readers of this list too. ;-) Ciao, Eckhard Stolberg -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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