1 files changed, 88 insertions, 0 deletions
diff --git a/gnu-efi/gnu-efi-3.0/lib/ia64/math.c b/gnu-efi/gnu-efi-3.0/lib/ia64/math.c
new file mode 100644
index 0000000..a8c4e12
--- /dev/null
+++ b/gnu-efi/gnu-efi-3.0/lib/ia64/math.c
@@ -0,0 +1,88 @@
+/*++
+
+Copyright (c) 1998  Intel Corporation
+
+Module Name:
+
+    math.c
+
+Abstract:
+
+
+
+
+Revision History
+
+--*/
+
+#include "lib.h"
+
+
+//
+// Declare runtime functions
+//
+
+#ifdef RUNTIME_CODE
+#ifndef __GNUC__
+#pragma RUNTIME_CODE(LShiftU64)
+#pragma RUNTIME_CODE(RShiftU64)
+#pragma RUNTIME_CODE(MultU64x32)
+#pragma RUNTIME_CODE(DivU64x32)
+#endif
+#endif
+
+//
+//
+//
+
+
+
+
+UINT64
+LShiftU64 (
+    IN UINT64   Operand,
+    IN UINTN    Count
+    )
+// Left shift 64bit by 32bit and get a 64bit result
+{
+    return Operand << Count;
+}
+
+UINT64
+RShiftU64 (
+    IN UINT64   Operand,
+    IN UINTN    Count
+    )
+// Right shift 64bit by 32bit and get a 64bit result
+{
+    return Operand >> Count;
+}
+
+
+UINT64
+MultU64x32 (
+    IN UINT64   Multiplicand,
+    IN UINTN    Multiplier
+    )
+// Multiple 64bit by 32bit and get a 64bit result
+{
+    return Multiplicand * Multiplier;
+}
+
+UINT64
+DivU64x32 (
+    IN UINT64   Dividend,
+    IN UINTN    Divisor,
+    OUT UINTN   *Remainder OPTIONAL
+    )
+// divide 64bit by 32bit and get a 64bit result
+// N.B. only works for 31bit divisors!!
+{
+    ASSERT (Divisor != 0);
+
+    if (Remainder) {
+        *Remainder = Dividend % Divisor;
+    }
+
+    return Dividend / Divisor;
+}