From d69c496886cd57f95a13f4f883eb1a5b73be83ab Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 26 Apr 2025 19:13:59 +0200 Subject: m68k: add fenv support from glibc --- libm/m68k/fegetenv.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 libm/m68k/fegetenv.c (limited to 'libm/m68k/fegetenv.c') diff --git a/libm/m68k/fegetenv.c b/libm/m68k/fegetenv.c new file mode 100644 index 000000000..2cd0a7c88 --- /dev/null +++ b/libm/m68k/fegetenv.c @@ -0,0 +1,33 @@ +/* Store current floating-point environment. + Copyright (C) 1997-2025 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 + +int +fegetenv (fenv_t *envp) +{ +#ifdef __mcoldfire__ + __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register)); + __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register)); + __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address)); +#else + __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp)); +#endif + + /* Success. */ + return 0; +} -- cgit v1.2.3