| /* Compute sine and cosine of argument. |
| Copyright (C) 1997, 2000 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <machine/asm.h> |
| #include "bp-sym.h" |
| #include "bp-asm.h" |
| |
| #define PARMS LINKAGE /* no space for saved regs */ |
| #define ANGLE PARMS |
| #define SINP ANGLE+8 |
| #define COSP SINP+PTR_SIZE |
| |
| .text |
| ENTRY (BP_SYM (__sincos)) |
| ENTER |
| |
| fldl ANGLE(%esp) |
| fsincos |
| movl SINP(%esp), %ecx |
| CHECK_BOUNDS_BOTH_WIDE (%ecx, SINP(%esp), $8) |
| movl COSP(%esp), %edx |
| CHECK_BOUNDS_BOTH_WIDE (%edx, COSP(%esp), $8) |
| fnstsw %ax |
| testl $0x400,%eax |
| jnz 1f |
| fstpl (%edx) |
| fstpl (%ecx) |
| |
| LEAVE |
| ret |
| |
| .align ALIGNARG(4) |
| 1: fldpi |
| fadd %st(0) |
| fxch %st(1) |
| 2: fprem1 |
| fnstsw %ax |
| testl $0x400,%eax |
| jnz 2b |
| fstp %st(1) |
| fsincos |
| fstpl (%edx) |
| fstpl (%ecx) |
| |
| LEAVE |
| ret |
| END (BP_SYM (__sincos)) |
| weak_alias (BP_SYM (__sincos), BP_SYM (sincos)) |
