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A song using premade sounds.


atari2600land

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Wishing I could program on the level of Puzzle Piece Panic. Don't know how to put songs on the Odyssey 2. It can be done (see "Jungle Girl"), but darned if I can know the source code to it. So I got bored and decided to make a "song" using the premade sfx of the Odyssey 2. I got this. It goes faster on real hardware than on O2EM. Is O2EM slower? I guess so. I may put this on a title screen to a future game.

anodyssey2song.zip

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I've found an "octave", here's the values :

 

First, set the audio registers A7h and A8h to 00h and AAh set bit 7,6,5 and volume (bits0-3). Something like : 11101111b

Note bit 4 on AAh is noise, so must to be 0.

Now Set A9h with one of these, to get pure tone :

 

01h

03h

07h

0Fh

1Fh

3Fh

7Fh

FFh

 

See the mp3 below for how it sounds.

teste.mp3

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