/* Compute positive difference. Copyright (C) 1997-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. 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 <http://www.gnu.org/licenses/>. */ #include <sysdep.h> .text ENTRY(__fdimf) flds 4(%esp) // x flds 8(%esp) // x : y fucom %st(1) fnstsw sahf jp 1f jc 3f fstp %st(1) fldz jmp 2f 3: fsubrp %st, %st(1) ret 1: fxam fnstsw andb $0x45, %ah cmpb $0x01, %ah je 2f fxch 2: fstp %st(1) ret END(__fdimf) weak_alias (__fdimf, fdimf)