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Diffstat (limited to 'src/VBox/Runtime/common/compiler/vcc/ftol2-vcc.asm')
-rw-r--r--src/VBox/Runtime/common/compiler/vcc/ftol2-vcc.asm80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/compiler/vcc/ftol2-vcc.asm b/src/VBox/Runtime/common/compiler/vcc/ftol2-vcc.asm
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index 00000000..40bd3fa2
--- /dev/null
+++ b/src/VBox/Runtime/common/compiler/vcc/ftol2-vcc.asm
@@ -0,0 +1,80 @@
+; $Id: ftol2-vcc.asm $
+;; @file
+; IPRT - Floating Point to Integer related Visual C++ support routines.
+;
+
+;
+; Copyright (C) 2022-2023 Oracle and/or its affiliates.
+;
+; This file is part of VirtualBox base platform packages, as
+; available from https://www.virtualbox.org.
+;
+; This program 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 3 of the
+; License.
+;
+; This program is distributed in the hope that it will be useful, but
+; WITHOUT ANY WARRANTY; without even the implied warranty of
+; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+; General Public License for more details.
+;
+; You should have received a copy of the GNU General Public License
+; along with this program; if not, see <https://www.gnu.org/licenses>.
+;
+; The contents of this file may alternatively be used under the terms
+; of the Common Development and Distribution License Version 1.0
+; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+; in the VirtualBox distribution, in which case the provisions of the
+; CDDL are applicable instead of those of the GPL.
+;
+; You may elect to license modified versions of this file under the
+; terms and conditions of either the GPL or the CDDL or both.
+;
+; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+;
+
+
+%include "iprt/asmdefs.mac"
+%include "iprt/x86.mac"
+
+
+;;
+; Convert st0 to integer returning it in eax, popping st0.
+;
+; @returns value in eax
+; @param st0 The value to convet. Will be popped.
+; @uses eax, st0, FSW.TOP
+;
+GLOBALNAME_RAW __ftol2_sse_excpt, function, RT_NOTHING
+GLOBALNAME_RAW __ftol2_sse, function, RT_NOTHING ;; @todo kind of expect __ftol2_sse to take input in xmm0 and return in edx:eax.
+BEGINPROC_RAW __ftoi2
+ push ebp
+ mov ebp, esp
+ sub esp, 8h
+ fisttp dword [esp]
+ mov eax, [esp]
+ leave
+ ret
+ENDPROC_RAW __ftoi2
+
+
+;;
+; Convert st0 to integer returning it in edx:eax, popping st0.
+;
+; @returns value in edx:eax
+; @param st0 The value to convet. Will be popped.
+; @uses eax, edx, st0, FSW.TOP
+;
+BEGINPROC_RAW __ftol2
+ push ebp
+ mov ebp, esp
+ sub esp, 8h
+ and esp, 0fffffff8h ; proper alignment.
+ fisttp qword [esp]
+ mov eax, [esp]
+ mov edx, [esp + 4]
+ leave
+ ret
+ENDPROC_RAW __ftol2
+