Hi,
On 26/05/2024 10:16, Miller Puckette wrote:
OK, so in a few years every new PC will probably have ARM or other
RISC architecture.
I just made the interesting discovery that, on Mac ARMs, there is a
difference, probably a slight decrease, in numerical accuracy in Pd's
DSP objects. So we've lost exact compatibliity and only have
pretty-good-approximate compatibility. On one piece I tested the
divergence is about -100 dB relative to maximum amplitude and in
another, which I think has unstable feedback paths, the results are
further off.
I debugged something similar:
https://post.lurk.org/@mathr/110760066818211577
TL;DR compile with -ffp-contract=off
Claude
--
https://mathr.co.uk
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