VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/math/lrintl.asm@ 100765

Last change on this file since 100765 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.1 KB
Line 
1; $Id: lrintl.asm 98103 2023-01-17 14:15:46Z vboxsync $
2;; @file
3; IPRT - No-CRT lrintl - AMD64 & X86.
4;
5
6;
7; Copyright (C) 2006-2023 Oracle and/or its affiliates.
8;
9; This file is part of VirtualBox base platform packages, as
10; available from https://www.virtualbox.org.
11;
12; This program is free software; you can redistribute it and/or
13; modify it under the terms of the GNU General Public License
14; as published by the Free Software Foundation, in version 3 of the
15; License.
16;
17; This program is distributed in the hope that it will be useful, but
18; WITHOUT ANY WARRANTY; without even the implied warranty of
19; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20; General Public License for more details.
21;
22; You should have received a copy of the GNU General Public License
23; along with this program; if not, see <https://www.gnu.org/licenses>.
24;
25; The contents of this file may alternatively be used under the terms
26; of the Common Development and Distribution License Version 1.0
27; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28; in the VirtualBox distribution, in which case the provisions of the
29; CDDL are applicable instead of those of the GPL.
30;
31; You may elect to license modified versions of this file under the
32; terms and conditions of either the GPL or the CDDL or both.
33;
34; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35;
36
37
38%define RT_ASM_WITH_SEH64
39%include "iprt/asmdefs.mac"
40
41
42BEGINCODE
43
44;;
45; Round lrd to the nearest integer value, rounding according to the current rounding direction.
46; @returns 32-bit: eax 64-bit: rax (non-windows) or eax (windows)
47; @param lrd [rbp + xCB*2]
48RT_NOCRT_BEGINPROC lrintl
49 push xBP
50 SEH64_PUSH_xBP
51 mov xBP, xSP
52 SEH64_SET_FRAME_xBP 0
53 sub xSP, 10h
54 SEH64_ALLOCATE_STACK 10h
55 SEH64_END_PROLOGUE
56
57 fld tword [xBP + xCB*2]
58%ifdef RT_ARCH_AMD64
59 %ifdef RT_OS_WINDOWS
60 fistp dword [xSP]
61 fwait
62 mov eax, [xSP]
63 %else
64 fistp qword [xSP]
65 fwait
66 mov rax, [xSP]
67 %endif
68%else
69 fistp dword [xSP]
70 fwait
71 mov eax, [xSP]
72%endif
73
74 leave
75 ret
76ENDPROC RT_NOCRT(lrintl)
77
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