projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 7799b7b3 | 1 | /* Compute sine and cosine of argument. |
| 9e25f6e2 | 2 | Copyright (C) 1997, 2000 Free Software Foundation, Inc. |
| 7799b7b3 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. | |
| 7799b7b3 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. |
| 7799b7b3 | 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/>. */ | |
| 7799b7b3 UD |
19 | |
| 20 | #include <machine/asm.h> | |
| 9e25f6e2 GM |
21 | #include "bp-sym.h" |
| 22 | #include "bp-asm.h" | |
| 7799b7b3 | 23 | |
| 9e25f6e2 GM |
24 | #define PARMS LINKAGE /* no space for saved regs */ |
| 25 | #define ANGLE PARMS | |
| 26 | #define SINP ANGLE+8 | |
| 27 | #define COSP SINP+PTR_SIZE | |
| 28 | ||
| 29 | .text | |
| 30 | ENTRY (BP_SYM (__sincos)) | |
| 31 | ENTER | |
| 32 | ||
| 33 | fldl ANGLE(%esp) | |
| 7799b7b3 | 34 | fsincos |
| 9e25f6e2 GM |
35 | movl SINP(%esp), %ecx |
| 36 | CHECK_BOUNDS_BOTH_WIDE (%ecx, SINP(%esp), $8) | |
| 37 | movl COSP(%esp), %edx | |
| 38 | CHECK_BOUNDS_BOTH_WIDE (%edx, COSP(%esp), $8) | |
| 7799b7b3 UD |
39 | fnstsw %ax |
| 40 | testl $0x400,%eax | |
| 41 | jnz 1f | |
| 42 | fstpl (%edx) | |
| 43 | fstpl (%ecx) | |
| 9e25f6e2 GM |
44 | |
| 45 | LEAVE | |
| 7799b7b3 | 46 | ret |
| 9e25f6e2 | 47 | |
| 7799b7b3 UD |
48 | .align ALIGNARG(4) |
| 49 | 1: fldpi | |
| 50 | fadd %st(0) | |
| 51 | fxch %st(1) | |
| 52 | 2: fprem1 | |
| 53 | fnstsw %ax | |
| 54 | testl $0x400,%eax | |
| 55 | jnz 2b | |
| 56 | fstp %st(1) | |
| 57 | fsincos | |
| 58 | fstpl (%edx) | |
| 59 | fstpl (%ecx) | |
| 9e25f6e2 GM |
60 | |
| 61 | LEAVE | |
| 7799b7b3 | 62 | ret |
| 9e25f6e2 GM |
63 | END (BP_SYM (__sincos)) |
| 64 | weak_alias (BP_SYM (__sincos), BP_SYM (sincos)) |