VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/math/llrintf.asm@ 96282

Last change on this file since 96282 was 96215, checked in by vboxsync, 2 years ago

IPRT/nocrt: lrint* returned the wrong sized long on 64-bit windows. Adopted llrint* and lring* to SEH64. bugref:10261

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.7 KB
Line 
1; $Id: llrintf.asm 96215 2022-08-15 10:48:50Z vboxsync $
2;; @file
3; IPRT - No-CRT llrintf - AMD64 & X86.
4;
5
6;
7; Copyright (C) 2006-2022 Oracle Corporation
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 (GPL) as published by the Free Software
13; Foundation, in version 2 as it comes in the "COPYING" file of the
14; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16;
17; The contents of this file may alternatively be used under the terms
18; of the Common Development and Distribution License Version 1.0
19; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20; VirtualBox OSE distribution, in which case the provisions of the
21; CDDL are applicable instead of those of the GPL.
22;
23; You may elect to license modified versions of this file under the
24; terms and conditions of either the GPL or the CDDL or both.
25;
26
27
28%define RT_ASM_WITH_SEH64
29%include "iprt/asmdefs.mac"
30
31
32BEGINCODE
33
34;;
35; Round rf to the nearest integer value, rounding according to the current rounding direction.
36; @returns 32-bit: edx:eax 64-bit: rax
37; @param rf 32-bit: [esp + 4h] 64-bit: xmm0
38RT_NOCRT_BEGINPROC llrintf
39 push xBP
40 SEH64_PUSH_xBP
41 mov xBP, xSP
42 SEH64_SET_FRAME_xBP 0
43%ifdef RT_ARCH_X86
44 sub xSP, 10h
45 SEH64_ALLOCATE_STACK 10h
46%endif
47 SEH64_END_PROLOGUE
48
49%ifdef RT_ARCH_AMD64
50 cvtss2si rax, xmm0
51%else
52 fld dword [ebp + 8h]
53 fistp qword [esp]
54 fwait
55 mov eax, [esp]
56 mov edx, [esp + 4]
57%endif
58
59 leave
60 ret
61ENDPROC RT_NOCRT(llrintf)
62
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