66 lines
1.6 KiB
ArmAsm
66 lines
1.6 KiB
ArmAsm
/* Compute sine and cosine of argument.
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Copyright (C) 1997, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <machine/asm.h>
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#include "bp-sym.h"
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#include "bp-asm.h"
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#define PARMS LINKAGE /* no space for saved regs */
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#define ANGLE PARMS
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#define SINP ANGLE+8
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#define COSP SINP+PTR_SIZE
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.text
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ENTRY (BP_SYM (__sincos))
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ENTER
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fldl ANGLE(%esp)
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fsincos
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movl SINP(%esp), %ecx
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CHECK_BOUNDS_BOTH_WIDE (%ecx, SINP(%esp), $8)
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movl COSP(%esp), %edx
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CHECK_BOUNDS_BOTH_WIDE (%edx, COSP(%esp), $8)
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fnstsw %ax
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testl $0x400,%eax
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jnz 1f
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fstpl (%edx)
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fstpl (%ecx)
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LEAVE
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ret
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.align ALIGNARG(4)
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1: fldpi
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fadd %st(0)
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fxch %st(1)
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2: fprem1
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fnstsw %ax
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testl $0x400,%eax
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jnz 2b
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fstp %st(1)
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fsincos
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fstpl (%edx)
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fstpl (%ecx)
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LEAVE
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ret
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END (BP_SYM (__sincos))
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weak_alias (BP_SYM (__sincos), BP_SYM (sincos))
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