Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing...

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / Ia32 / MultU64x32.asm

diff --git a/OldMdePkg/Library/BaseLib/Ia32/MultU64x32.asm b/OldMdePkg/Library/BaseLib/Ia32/MultU64x32.asm
new file mode 100644 (file)
index 0000000..9c9ef06
--- /dev/null
+++ b/OldMdePkg/Library/BaseLib/Ia32/MultU64x32.asm
@@ -0,0 +1,43 @@
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2006, Intel Corporation\r
+; All rights reserved. This program and the accompanying materials\r
+; are licensed and made available under the terms and conditions of the BSD License\r
+; which accompanies this distribution.  The full text of the license may be found at\r
+; http://opensource.org/licenses/bsd-license.php\r
+;\r
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+;\r
+; Module Name:\r
+;\r
+;   MultU64x32.asm\r
+;\r
+; Abstract:\r
+;\r
+;   Calculate the product of a 64-bit integer and a 32-bit integer\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+    .386\r
+    .model  flat,C\r
+    .code\r
+\r
+;------------------------------------------------------------------------------\r
+; UINT64\r
+; EFIAPI\r
+; InternalMathMultU64x32 (\r
+;   IN      UINT64                    Multiplicand,\r
+;   IN      UINT32                    Multiplier\r
+;   );\r
+;------------------------------------------------------------------------------\r
+InternalMathMultU64x32  PROC\r
+    mov     ecx, [esp + 12]\r
+    mov     eax, ecx\r
+    imul    ecx, [esp + 8]              ; overflow not detectable\r
+    mul     dword ptr [esp + 4]\r
+    add     edx, ecx\r
+    ret\r
+InternalMathMultU64x32  ENDP\r
+\r
+    END\r