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HEAD
OpenLIBM: local modification - elf notes on assembly
[dragonfly.git]
/
contrib
/
openbsd_libm
/
arch
/
amd64
/
s_floorf.S
1
/* $OpenBSD: s_floorf.S,v 1.4 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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ENTRY(floorf)
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movss %xmm0, -4(%rsp)
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fstcw -8(%rsp)
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movw -8(%rsp),%dx
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orw $0x0400,%dx
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andw $0xf7ff,%dx
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movw %dx,-12(%rsp)
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fldcw -12(%rsp)
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flds -4(%rsp)
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frndint
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fldcw -8(%rsp)
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fstps -4(%rsp)
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movss -4(%rsp),%xmm0
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ret
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END(floorf)
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.section .note.GNU-stack,"",%progbits