From e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 22 Jun 2007 03:21:45 +0000
Subject: Import some basic libraries instances for Mde Packages.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2704 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/BaseLib/Ia32/MultU64x64.asm | 47 ++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 MdePkg/Library/BaseLib/Ia32/MultU64x64.asm

(limited to 'MdePkg/Library/BaseLib/Ia32/MultU64x64.asm')

diff --git a/MdePkg/Library/BaseLib/Ia32/MultU64x64.asm b/MdePkg/Library/BaseLib/Ia32/MultU64x64.asm
new file mode 100644
index 0000000000..f3679548f1
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/MultU64x64.asm
@@ -0,0 +1,47 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   MultU64x64.asm
+;
+; Abstract:
+;
+;   Calculate the product of a 64-bit integer and another 64-bit integer
+;
+;------------------------------------------------------------------------------
+
+    .386
+    .model  flat,C
+    .code
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathMultU64x64 (
+;   IN      UINT64                    Multiplicand,
+;   IN      UINT64                    Multiplier
+;   );
+;------------------------------------------------------------------------------
+InternalMathMultU64x64  PROC    USES    ebx
+    mov     ebx, [esp + 8]              ; ebx <- M1[0..31]
+    mov     edx, [esp + 16]             ; edx <- M2[0..31]
+    mov     ecx, ebx
+    mov     eax, edx
+    imul    ebx, [esp + 20]             ; ebx <- M1[0..31] * M2[32..63]
+    imul    edx, [esp + 12]             ; edx <- M1[32..63] * M2[0..31]
+    add     ebx, edx                    ; carries are abandoned
+    mul     ecx                         ; edx:eax <- M1[0..31] * M2[0..31]
+    add     edx, ebx                    ; carries are abandoned
+    ret
+InternalMathMultU64x64  ENDP
+
+    END
-- 
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