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Atari coding BBS
| Re: MPeg2 little question |
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Posted by: Anonymous
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Jul,09.2012-23:47
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There is some example YM sample code in the DHS synclock demosystem package. Look for YMDIGI8.S in the SYS folder.
Please notice that this code will not work AS IS on the Falcon due to the lack of PSG shadowing.
The line in the routine MUSIC_YMDIGI8_TIMER that is coded as:
movem.l a6/d6-d7,$ffff8800.w
could be changed to:
move.l d6,$FFFF8800.w
move.l d7,$FFFF8800.w
move.l a6,$FFFF8800.w
this would avoid use of ST only PSG shadow regs that don't exist on Falcon.
I HAVE NOT A CHANCE TO TEST THIS.
I have heard Falcon play PSG samples so it can be made to work. I have never heard falcon play PSG sample + SDMA. That would be a new trick!!
Good luck.
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