projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 6973fc01 | 1 | /* Compute positive difference. |
| 28133993 | 2 | Copyright (C) 1997, 1999 Free Software Foundation, Inc. |
| 6973fc01 UD |
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 | |
| 41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 6973fc01 UD |
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 | |
| 41bdb6e2 | 14 | Lesser General Public License for more details. |
| 6973fc01 | 15 | |
| 41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, write to the Free | |
| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 19 | 02111-1307 USA. */ | |
| 6973fc01 UD |
20 | |
| 21 | #include <sysdep.h> | |
| 22 | ||
| 23 | .text | |
| 24 | ENTRY(__fdiml) | |
| 25 | fldt 4(%esp) // x | |
| 26 | fldt 16(%esp) // x : y | |
| 27 | ||
| 28 | fucom %st(1) | |
| 29 | fnstsw | |
| 30 | sahf | |
| 31 | jp 1f | |
| 32 | ||
| 4b2e86ce | 33 | fsubrp %st, %st(1) |
| 6973fc01 UD |
34 | jc 2f |
| 35 | ||
| 36 | fstp %st(0) | |
| 37 | fldz | |
| 38 | jmp 2f | |
| 39 | ||
| 40 | 1: fxam | |
| 41 | fnstsw | |
| 42 | andb $0x45, %ah | |
| 43 | cmpb $0x01, %ah | |
| 44 | je 3f | |
| 45 | ||
| 46 | fxch | |
| 47 | 3: fstp %st(1) | |
| 48 | ||
| 49 | 2: ret | |
| 50 | END(__fdiml) | |
| 51 | weak_alias (__fdiml, fdiml) |