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Atari coding BBS
| Re: DSP frac arithmetic help |
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Posted by: dml
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Feb,27.2015-20:38
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well, the value $ff:800000 is -1 when in an accumulator. In all other cases (x0, y0, memory etc..) then $800000 represents -1.0.
The DSP does deal with -1.0 normally, just not 1.0.
Still, there's no harm in sticking to the -0.999 -> 0.999 range if it works for your program. It is at least symmetric.
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Topic
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Posted by
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Date
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DSP frac arithmetic help
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Laurent / Thadoss
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Feb,27.2015-15:03
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Re: DSP frac arithmetic help
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Laurent / Thadoss
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Feb,27.2015-15:08
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Re: DSP frac arithmetic help
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dml
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Feb,27.2015-15:28
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Re: DSP frac arithmetic help
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Laurent / Thadoss
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Feb,27.2015-18:32
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Re: DSP frac arithmetic help
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dml
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Feb,27.2015-18:42
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Re: DSP frac arithmetic help
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dml
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Feb,27.2015-18:46
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Re: DSP frac arithmetic help
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Splash/S1
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Feb,27.2015-20:21
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Re: DSP frac arithmetic help
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dml
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Feb,27.2015-20:38
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Re: DSP frac arithmetic help
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Laurent / Thadoss
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Feb,27.2015-20:42
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Re: DSP frac arithmetic help
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mikro
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Feb,28.2015-10:44
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Re: DSP frac arithmetic help
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dml
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Feb,28.2015-12:35
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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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