From 6b06704d35f43a019ce3bd3d2221aef3d8e2cba3 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Mon, 28 Apr 2025 12:49:31 +0200 Subject: csky: add fenv support from glibc --- libm/csky/feenablxcpt.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 libm/csky/feenablxcpt.c (limited to 'libm/csky/feenablxcpt.c') diff --git a/libm/csky/feenablxcpt.c b/libm/csky/feenablxcpt.c new file mode 100644 index 000000000..90c495080 --- /dev/null +++ b/libm/csky/feenablxcpt.c @@ -0,0 +1,39 @@ +/* Enable floating-point exceptions. + Copyright (C) 2018-2025 Free Software Foundation, Inc. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#include +#include "fenv_libc.h" +#include + +int +feenableexcept (int excepts) +{ + unsigned int new_exc, old_exc; + + /* Get the current control word. */ + _FPU_GETCW (new_exc); + + old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT; + + excepts &= FE_ALL_EXCEPT; + + new_exc |= excepts << ENABLE_SHIFT; + + _FPU_SETCW (new_exc); + + return old_exc; +} -- cgit v1.2.3