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Atari coding BBS
| Re: DSPMOD 3.4 problems |
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Posted by: ggn
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Jul,26.2020-22:37
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Hi,
Here's the code I use to play samples in Downfall Falcon (https://www.pouet.net/prod.php?which=58036) using DSPmod34:
During init:
bsr dspmod34_setup
move.w #5,dspmod34_player+dspmod34_dsptracks ;4 music + 1 sfx
...
dspmod34_voltab4:
DC.W $0FFF,$0FFF,$0FFF,$0FFF
DC.W $3FFF,0,0,0
The code that calls the sample player is mostly like this (a0=sample start, d0=sample length):
movea.l A0,A1
adda.l D0,A1
moveq #0,D0
move.w #221,D1
move.w #64,D2
moveq #0,D3
movea.l A0,A2
lea 2,A3
bsr dspmod34_player+dspmod34_fx
"221" is sample period that translates to Amiga timings. IIRC this value is the closest to 8KHz.
This is pretty much what I do and it's been very stable. One small thing I omitted is that I have an internal counter that avoids re-triggering the sample player if a sample is already playing. Of course the "lea 2,a3" means (IIRC again) that the looping point is 2 samples long.
In any case, I hope this helps!
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Date
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DSPMOD 3.4 problems
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Instream
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Aug,12.2010-23:01
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Re: DSPMOD 3.4 problems
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evil
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Aug,13.2010-10:13
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Re: DSPMOD 3.4 problems
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Instream
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Aug,13.2010-10:55
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Re: DSPMOD 3.4 problems
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redspecter
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Aug,15.2010-18:39
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Re: DSPMOD 3.4 problems
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Instream
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Aug,17.2010-07:49
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Re: DSPMOD 3.4 problems
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mikro
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Aug,17.2010-09:19
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Re: DSPMOD 3.4 problems
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evil
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Aug,17.2010-09:27
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Re: DSPMOD 3.4 problems
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evil
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Aug,16.2010-09:16
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Re: DSPMOD 3.4 problems
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Instream
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Aug,17.2010-07:51
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Re: DSPMOD 3.4 problems
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Thomas / New Beat
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Aug,24.2010-14:40
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Re: DSPMOD 3.4 problems
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instream
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Aug,24.2010-22:20
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Re: DSPMOD 3.4 problems
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joska
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Jul,26.2020-13:53
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Re: DSPMOD 3.4 problems
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ggn
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Jul,26.2020-22:37
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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