From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:00 -0500 Subject: lib: Add mlibc Signed-off-by: Ian Moffett --- lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c (limited to 'lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c') diff --git a/lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c b/lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c new file mode 100644 index 0000000..fd00eb1 --- /dev/null +++ b/lib/mlibc/options/ansi/musl-generic-math/__fpclassifyf.c @@ -0,0 +1,11 @@ +#include +#include + +int __fpclassifyf(float x) +{ + union {float f; uint32_t i;} u = {x}; + int e = u.i>>23 & 0xff; + if (!e) return u.i<<1 ? FP_SUBNORMAL : FP_ZERO; + if (e==0xff) return u.i<<9 ? FP_NAN : FP_INFINITE; + return FP_NORMAL; +} -- cgit v1.2.3