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0208581bf4bc3d3a47c51daa81065bd9cd8e4c0d
[dragonfly.git]
/
contrib
/
openbsd_libm
/
arch
/
amd64
/
s_ceil.S
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/* $OpenBSD: s_ceil.S,v 1.3 2009/04/08 22:30:41 martynas Exp $ */
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/*
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* Written by J.T. Conklin <jtc@NetBSD.org>.
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* Public domain.
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*/
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#include <machine/asm.h>
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#include "abi.h"
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ENTRY(ceil)
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fstcw -12(%rsp)
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movw -12(%rsp),%dx
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orw $0x0800,%dx
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andw $0xfbff,%dx
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movw %dx,-16(%rsp)
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fldcw -16(%rsp)
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movsd %xmm0,-8(%rsp)
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fldl -8(%rsp)
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frndint
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fldcw -12(%rsp)
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fstpl -8(%rsp)
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movsd -8(%rsp),%xmm0
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ret