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Atari coding BBS
 
ACIA mouse question
Posted by: Thadoss Dec,03.2015-18:06 

Hi all,

I've got a little question about the ACIA mouse $118 vector.

I've read many things about it and read lot's of source code, but something is never explained :

When I get a mouse paquet : $f8, $f9, $fa or $fb, it gives me the buttons values and then, 2 bytes for the relative X and relative Y values.

All of is is OK and works well in my code except if I move very fast the mouse (in this case, i'm sure deltaX is > 127).


The Atari compendium says : [...] If the movement is greater than can be represented as signed bytes (-128 to 127), multiple packets are sent.

How does this multiple packets works ?
Best regards

Laurent





[All messages in this thread]

Topic Posted by  Date 
ACIA mouse question Thadoss Dec,03.2015-18:06
  Re: ACIA mouse question dml Dec,03.2015-21:15
    Re: ACIA mouse question Thadoss Dec,03.2015-21:28
      Re: ACIA mouse question ggn Dec,04.2015-10:08
        Re: ACIA mouse question Thadoss Dec,04.2015-11:21
        Re: ACIA mouse question Thadoss Dec,04.2015-11:33
          Re: ACIA mouse question ggn Dec,04.2015-12:09
  Re: ACIA mouse question defjam Dec,04.2015-22:21
    Re: ACIA mouse question Thadoss Dec,05.2015-00:06
      Re: ACIA mouse question Thadoss Dec,05.2015-12:19
        Re: ACIA mouse question dml Dec,05.2015-15:57
        Re: ACIA mouse question dml Dec,05.2015-16:03


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