projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 63551311 | 1 | /* Truncate long double value. |
| 688903eb | 2 | Copyright (C) 1997-2018 Free Software Foundation, Inc. |
| 63551311 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. | |
| 63551311 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. |
| 63551311 | 15 | |
| 41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 63551311 | 19 | |
| 2ce30701 | 20 | #include <libm-alias-ldouble.h> |
| 63551311 UD |
21 | #include <machine/asm.h> |
| 22 | ||
| 23 | ENTRY(__truncl) | |
| 24 | fldt 4(%esp) | |
| 30dcf959 JM |
25 | subl $32, %esp |
| 26 | cfi_adjust_cfa_offset (32) | |
| 27 | fnstenv 4(%esp) | |
| 63551311 UD |
28 | movl $0xc00, %edx |
| 29 | orl 4(%esp), %edx | |
| 30 | movl %edx, (%esp) | |
| 31 | fldcw (%esp) | |
| 32 | frndint | |
| 30dcf959 JM |
33 | fnstsw |
| 34 | andl $0x1, %eax | |
| 35 | orl %eax, 8(%esp) | |
| 36 | fldenv 4(%esp) | |
| 37 | addl $32, %esp | |
| 38 | cfi_adjust_cfa_offset (-32) | |
| 63551311 UD |
39 | ret |
| 40 | END(__truncl) | |
| 2ce30701 | 41 | libm_alias_ldouble (__trunc, trunc) |