projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 6973fc01 UD |
1 | /* Compute minimum of two numbers, regarding NaN as missing argument. |
| 2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
| 3 | This file is part of the GNU C Library. | |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Library General Public License as | |
| 8 | published by the Free Software Foundation; either version 2 of the | |
| 9 | License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Library General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Library General Public | |
| 17 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 18 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | #include <sysdep.h> | |
| 22 | ||
| 23 | .text | |
| 24 | ENTRY(__fminf) | |
| 25 | flds 4(%esp) // x | |
| 26 | flds 8(%esp) // x : y | |
| 27 | ||
| 28 | fxam | |
| 29 | fnstsw | |
| 30 | andb $0x45, %ah | |
| 31 | cmpb $0x01, %ah | |
| 32 | je 1f // y == NaN | |
| 33 | ||
| 34 | fucom %st(1) | |
| 35 | fnstsw | |
| 36 | sahf | |
| 37 | jc 2f | |
| 38 | ||
| 39 | 1: fxch %st(1) | |
| 40 | 2: fstp %st(1) | |
| 41 | ||
| 42 | ret | |
| 43 | END(__fminf) | |
| 44 | weak_alias (__fminf, fminf) |