VirtualBox

source: vbox/trunk/src/VBox/Runtime/math/lrintf.asm@ 3460

Last change on this file since 3460 was 2988, checked in by vboxsync, 18 years ago

InnoTek -> innotek part 4: more miscellaneous files.

  • Property svn:keywords set to Id
File size: 1.3 KB
Line 
1; $Id: lrintf.asm 2988 2007-06-01 17:36:09Z vboxsync $
2;; @file
3; innotek Portable Runtime - No-CRT lrintf - AMD64 & X86.
4;
5
6;
7; Copyright (C) 2006-2007 innotek GmbH
8;
9; This file is part of VirtualBox Open Source Edition (OSE), as
10; available from http://www.virtualbox.org. This file is free software;
11; you can redistribute it and/or modify it under the terms of the GNU
12; General Public License as published by the Free Software Foundation,
13; in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14; distribution. VirtualBox OSE is distributed in the hope that it will
15; be useful, but WITHOUT ANY WARRANTY of any kind.
16;
17; If you received this file as part of a commercial VirtualBox
18; distribution, then only the terms of your commercial VirtualBox
19; license agreement apply instead of the previous paragraph.
20;
21
22%include "iprt/asmdefs.mac"
23
24BEGINCODE
25
26;;
27; Round rd to the nearest integer value, rounding according to the current rounding direction.
28; @returns 32-bit: eax 64-bit: rax
29; @param rf 32-bit: [esp + 4h] 64-bit: xmm0
30BEGINPROC RT_NOCRT(lrintf)
31%ifdef __AMD64__
32 cvtss2si rax, xmm0
33%else
34 push ebp
35 mov ebp, esp
36 sub esp, 8h
37
38 fld dword [ebp + 8h]
39 fistp dword [esp]
40 fwait
41 mov eax, [esp]
42
43 leave
44%endif
45 ret
46ENDPROC RT_NOCRT(lrintf)
47
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