NetBSD/lib/libm/arch/i387/s_ceil.S

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ArmAsm
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1994-02-11 21:20:17 +03:00
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
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*/
#include <machine/asm.h>
RCSID("$Id: s_ceil.S,v 1.3 1995/04/28 22:43:50 jtc Exp $")
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ENTRY(ceil)
pushl %ebp
movl %esp,%ebp
subl $8,%esp
fstcw -12(%ebp) /* store fpu control word */
movw -12(%ebp),%dx
orw $0x0800,%dx /* round towards +oo */
andw $0xfbff,%dx
movw %dx,-16(%ebp)
fldcw -16(%ebp) /* load modfied control word */
fldl 8(%ebp); /* round */
frndint
fldcw -12(%ebp) /* restore original control word */
leave
ret