; $Id$

;; @file

; asm specifics

;

;

; Copyright (C) 2013 Oracle Corporation

;

; This file is part of VirtualBox Open Source Edition (OSE), as

; available from http://www.virtualbox.org. This file is free software;

; you can redistribute it and/or modify it under the terms of the GNU

; General Public License (GPL) as published by the Free Software

; Foundation, in version 2 as it comes in the "COPYING" file of the

; VirtualBox OSE distribution. VirtualBox OSE is distributed in the

; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

;

;*******************************************************************************

;* Header Files *

;*******************************************************************************

%include "iprt/asmdefs.mac"

BEGINCODE

;;

; Get the FPU control word

;

align 16

BEGINPROC VBoxAsmFpuFCWGet

fnstcw [xSP - 8]

mov ax, word [xSP - 8]

ret

ENDPROC VBoxAsmFpuFCWGet

;;

; Set the FPU control word

;

; @param u16FCW New FPU control word

align 16

BEGINPROC VBoxAsmFpuFCWSet

mov xAX, rcx

push xAX

fldcw [xSP]

pop xAX

ret

ENDPROC VBoxAsmFpuFCWSet