; $Id: llrint.asm 2988 2007-06-01 17:36:09Z vboxsync $
;; @file
; innotek Portable Runtime - No-CRT llrint - AMD64 & X86.
;

;
; Copyright (C) 2006-2007 innotek GmbH
;
; 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 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.
;
; If you received this file as part of a commercial VirtualBox
; distribution, then only the terms of your commercial VirtualBox
; license agreement apply instead of the previous paragraph.
;

%include "iprt/asmdefs.mac"

BEGINCODE

;;
; Round rd to the nearest integer value, rounding according to the current rounding direction.
; @returns 32-bit: edx:eax  64-bit: rax
; @param    rd     32-bit: [esp + 4h]  64-bit: xmm0
BEGINPROC RT_NOCRT(llrint)
%ifdef __AMD64__
    cvtsd2si rax, xmm0
%else
    push    ebp
    mov     ebp, esp
    sub     esp, 8h

    fld     qword [ebp + 8h]
    fistp   qword [esp]
    fwait
    mov     eax, [esp]
    mov     edx, [esp + 4]

    leave
%endif
    ret
ENDPROC   RT_NOCRT(llrint)