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Atari coding BBS
| Re: Stop YM sound |
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Posted by: evil
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Apr,27.2010-19:34
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As register 7 have I/O ports, you should not move direct values to it, but rather first read it and only modify the bits you like and put it back.
Anyway to get the YM to shut up I do this:
lea $ffff8800.w,a0
lea $ffff8802.w,a1
move.b #8,(a0)
clr.b (a1)
move.b #9,(a0)
clr.b (a1)
move.b #10,(a0)
clr.b (a1)
--
Anders Eriksson
ae@dhs.nu
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