openmano-mpy/lib/libm_dbl, branch master

lib/libm_dbl: Add round.c source code.

2020-07-21T01:07:19+00:00

This code is imported from musl, to match existing code in libm_dbl.

The file is also added to the build in stm32/Makefile.  It's not needed by
the core code but, similar to c5cc64175be32cb1e4f3f1a249667bc9f5a12613,
allows round() to be used by user C modules or board extensions.

all: Remove commented-out include statements.

2020-04-23T01:24:15+00:00

stm32: Use hardware double sqrt on F7/H7 MCUs.

2019-10-10T06:39:32+00:00

Identical to cd527bb324ade952d11a134859d38bf5272c165e but for doubles.
This gives a -2.754% improvement on bm_float.py, and -35% improvement on
calling sqrt in a loop.

lib/libm_dbl: Add implementation of copysign() for DEBUG builds.

2018-09-20T06:46:19+00:00

This provides a double variant of the float copysignf from libm/math.c
which is required for DEBUG=1 builds when MICROPY_FLOAT_IMPL=double

lib/libm_dbl/tanh: Make tanh more efficient and handle large numbers.

2018-09-04T06:57:46+00:00

Prior to this patch tanh(large number) would return nan due to inf/inf.

lib: Add libm_dbl, a double-precision math library, from musl-1.1.16.

2017-06-28T05:12:04+00:00