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

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / Ia32 / DivS64x64Remainder.c

diff --git a/OldMdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c b/OldMdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c
new file mode 100644 (file)
index 0000000..1dfac5d
--- /dev/null
+++ b/OldMdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c
@@ -0,0 +1,54 @@
+/** @file\r
+  Integer division worker functions for Ia32.\r
+\r
+  Copyright (c) 2006, Intel Corporation<BR>\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:  DivS64x64Remainder.c\r
+\r
+**/\r
+\r
+#include "../BaseLibInternals.h"\r
+\r
+/**\r
+  Worker function that Divides a 64-bit signed integer by a 64-bit signed integer and\r
+  generates a  64-bit signed result and a optional 64-bit signed remainder.\r
+\r
+  This function divides the 64-bit unsigned value Dividend by the 64-bit\r
+  unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder\r
+  is not NULL, then the 64-bit unsigned remainder is returned in Remainder.\r
+  This function returns the 64-bit unsigned quotient.\r
+\r
+  @param  Dividend  A 64-bit signed value.\r
+  @param  Divisor   A 64-bit signed value.\r
+  @param  Remainder A pointer to a 64-bit signed value. This parameter is\r
+                    optional and may be NULL.\r
+\r
+  @return Dividend / Divisor\r
+\r
+**/\r
+INT64\r
+InternalMathDivRemS64x64 (\r
+  IN      INT64                     Dividend,\r
+  IN      INT64                     Divisor,\r
+  OUT     INT64                     *Remainder  OPTIONAL\r
+  )\r
+{\r
+  INT64                             Quot;\r
+\r
+  Quot = InternalMathDivRemU64x64 (\r
+           Dividend >= 0 ? Dividend : -Dividend,\r
+           Divisor >= 0 ? Divisor : -Divisor,\r
+           (UINT64 *) Remainder\r
+           );\r
+  if (Remainder != NULL && Dividend < 0) {\r
+    *Remainder = -*Remainder;\r
+  }\r
+  return (Dividend ^ Divisor) >= 0 ? Quot : -Quot;\r
+}\r