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

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / Ia32 / MultU64x64.S

diff --git a/OldMdePkg/Library/BaseLib/Ia32/MultU64x64.S b/OldMdePkg/Library/BaseLib/Ia32/MultU64x64.S
new file mode 100644 (file)
index 0000000..0352386
--- /dev/null
+++ b/OldMdePkg/Library/BaseLib/Ia32/MultU64x64.S
@@ -0,0 +1,44 @@
+#------------------------------------------------------------------------------\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
+#   MultU64x64.asm\r
+#\r
+# Abstract:\r
+#\r
+#   Calculate the product of a 64-bit integer and another 64-bit integer\r
+#\r
+#------------------------------------------------------------------------------\r
+\r
+.globl ASM_PFX(InternalMathMultU64x64)\r
+\r
+#------------------------------------------------------------------------------\r
+# UINT64\r
+# EFIAPI\r
+# InternalMathMultU64x64 (\r
+#   IN      UINT64                    Multiplicand,\r
+#   IN      UINT64                    Multiplier\r
+#   );\r
+#------------------------------------------------------------------------------\r
+ASM_PFX(InternalMathMultU64x64):\r
+    push    %ebx\r
+    movl    8(%esp), %ebx\r
+    movl    16(%esp), %edx\r
+    movl    %ebx, %ecx\r
+    movl    %edx, %eax\r
+    imull   20(%esp), %ebx\r
+    imull   12(%esp), %edx\r
+    addl    %edx, %ebx\r
+    mull    %ecx\r
+    addl    %ebx, %edx\r
+    pop     %ebx\r
+    ret\r