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/* $OpenBSD: s_floor.S,v 1.5 2018/07/03 22:43:34 mortimer Exp $ */
/*
* Written by J.T. Conklin <jtc@NetBSD.org>.
* Public domain.
*/
#include <machine/asm.h>
#include "abi.h"
ENTRY(floor)
RETGUARD_SETUP(floor, r11)
movsd %xmm0, -8(%rsp)
fstcw -12(%rsp)
movw -12(%rsp),%dx
orw $0x0400,%dx
andw $0xf7ff,%dx
movw %dx,-16(%rsp)
fldcw -16(%rsp)
fldl -8(%rsp)
frndint
fldcw -12(%rsp)
fstpl -8(%rsp)
movsd -8(%rsp),%xmm0
RETGUARD_CHECK(floor, r11)
ret
END_STD(floor)
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