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Atari coding BBS
 
Re: Paulo Simoes Lance replayer
Posted by: ljbk Jun,26.2015-23:09 

You are assuming that the program is executed on a GEM environement and that you have a 200 Hz timer C.
That may not be the case so the program has to set its own context.
Also accuracy is needed otherwise you notice it on the audio part:

***************************************************************************
* PROC: REFRESH
***************************************************************************
refresh:
eor.b #%00000011,$FFFFFA23.w to allow 245.5 divider
addq.b #1,$469.w
rte

245.5 divider means a 2457600(MFP) / 245.5 / 200 = 50.0529 Hz
VBL = 160256 cycles 8021247(Clock) / 160256 = 50.0527 Hz


What you assume to be useless code may be, if removed, a missing part for someone else.





[All messages in this thread]

Topic Posted by  Date 
Paulo Simoe's Lance replayer joska Jun,18.2015-13:54
  Re: Paulo Simoe's Lance replayer evil Jun,18.2015-15:38
    Re: Paulo Simoe's Lance replayer joska Jun,18.2015-20:22
      Re: Paulo Simoe's Lance replayer joska Jun,19.2015-11:10
        Re: Paulo Simoe's Lance replayer Grazey/PHF Jun,19.2015-18:52
        Re: Paulo Simoe's Lance replayer joska Jun,20.2015-11:53
  Re: Paulo Simoe's Lance replayer joska Jun,21.2015-22:46
    Re: Paulo Simoe's Lance replayer joska Jun,22.2015-01:11
      Re: Paulo Simoe's Lance replayer mikro Jun,22.2015-08:15
        Re: Paulo Simoe's Lance replayer joska Jun,22.2015-09:00
          Re: Paulo Simoe's Lance replayer ljbk Jun,24.2015-14:16
            Re: Paulo Simoe's Lance replayer joska Jun,24.2015-15:28
              Re: Paulo Simoes Lance replayer ljbk Jun,24.2015-21:04
                Re: Paulo Simoes Lance replayer joska Jun,25.2015-00:20
  Re: Paulo Simoe's Lance replayer joska Jun,26.2015-10:30
    Re: Paulo Simoe's Lance replayer evil Jun,26.2015-12:01
      Re: Paulo Simoe's Lance replayer joska Jun,26.2015-13:25
        Re: Paulo Simoes Lance replayer ljbk Jun,26.2015-19:34
          Re: Paulo Simoes Lance replayer ljbk Jun,26.2015-19:36
      Re: Paulo Simoes Lance replayer ljbk Jun,26.2015-20:00
        Re: Paulo Simoes Lance replayer joska Jun,26.2015-20:53
          Re: Paulo Simoes Lance replayer ljbk Jun,26.2015-23:09
            Re: Paulo Simoes Lance replayer joska Jun,28.2015-18:38
              Re: Paulo Simoes Lance replayer joska Jun,29.2015-14:38
          Re: Paulo Simoes Lance replayer evil Jun,27.2015-18:10
            Re: Paulo Simoes Lance replayer ljbk Jun,27.2015-22:32
              Re: Paulo Simoes Lance replayer joska Jun,28.2015-16:07
            Re: Paulo Simoes Lance replayer joska Jun,28.2015-16:09


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