WebSVN – Kolibri OS – Diff – /drivers/devman/acpica/utilities/utmath.c

 /******************************************************************************
+ *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
+ *
  * 2. License
+ *
 #define _COMPONENT          ACPI_UTILITIES
         ACPI_MODULE_NAME    ("utmath")
 /*
- * Support for double-precision integer divide.  This code is included here
+ * Optional support for 64-bit double-precision integer divide. This code
+ * is configurable and is implemented in order to support 32-bit kernel
+ * environments where a 64-bit double-precision math library is not available.
+ *
- * in order to support kernel environments where the double-precision math
+ * Support for a more normal 64-bit divide/modulo (with check for a divide-
- * library is not available.
- */
+ * by-zero) appears after this optional section of code.
+ */
+#ifndef ACPI_USE_NATIVE_DIVIDE
+/* Structures used only for 64-bit divide */
+typedef struct uint64_struct
+{
+    UINT32                          Lo;
+    UINT32                          Hi;
+} UINT64_STRUCT;
+typedef union uint64_overlay
+{
+    UINT64                          Full;
+    UINT64_STRUCT                   Part;
+} UINT64_OVERLAY;
 #ifndef ACPI_USE_NATIVE_DIVIDE
 /*******************************************************************************
+ *
  * FUNCTION:    AcpiUtShortDivide

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