Blitter sound routine

GFA, ASM, STOS, ...

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charles
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Re: Blitter sound routine

Postby charles » Thu Aug 02, 2018 10:11 pm

can you help me with how the timer and setting he tempo is accomplished?
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metalages
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Re: Blitter sound routine

Postby metalages » Fri Aug 03, 2018 7:39 pm

The score is interpreted at each frame (50hz).
The $F (15 in decimal) effect allow to specify how many frames a line into the score will last.
For lowest tempos there is another calculation method as described in the mod format
http://www.textfiles.com/programming/FO ... d-form.txt
(look at 15 Set speed effect)

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charles
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Re: Blitter sound routine

Postby charles » Fri Aug 03, 2018 10:29 pm

thanks ....ive been trying for years to implement a tempo adjust for a midi playback routine I wrote by adjusting the timers resolution...maybe this will help .....
brace yourself
ill prob have more questions
atari is my lifestyle,not a hobby.
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vinz6751
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Re: Blitter sound routine

Postby vinz6751 » Sun Aug 19, 2018 4:06 pm

I don't have anything to contribute but I really like this discussion, great job :)

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metalages
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Re: Blitter sound routine

Postby metalages » Mon Aug 20, 2018 9:45 pm

Thanks :)


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