From 9cb57fb4bb3bbae0ae052a5af4a96a49fc5d864d Mon Sep 17 00:00:00 2001
From: Alex Barney <thealexbarney@gmail.com>
Date: Tue, 30 Oct 2018 19:43:02 -0600
Subject: Adjust naming conventions for Ryujinx and ChocolArm64 projects (#484)

* Change naming convention for Ryujinx project

* Change naming convention for ChocolArm64 project

* Fix NaN

* Remove unneeded this. from Ryujinx project

* Adjust naming from new PRs

* Name changes based on feedback

* How did this get removed?

* Rebasing fix

* Change FP enum case

* Remove prefix from ChocolArm64 classes - Part 1

* Remove prefix from ChocolArm64 classes - Part 2

* Fix alignment from last commit's renaming

* Rename namespaces

* Rename stragglers

* Fix alignment

* Rename OpCode class

* Missed a few

* Adjust alignment
---
 ChocolArm64/BitUtils.cs | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 ChocolArm64/BitUtils.cs

(limited to 'ChocolArm64/BitUtils.cs')

diff --git a/ChocolArm64/BitUtils.cs b/ChocolArm64/BitUtils.cs
new file mode 100644
index 00000000..881ee248
--- /dev/null
+++ b/ChocolArm64/BitUtils.cs
@@ -0,0 +1,49 @@
+namespace ChocolArm64
+{
+    static class BitUtils
+    {
+        public static int HighestBitSet32(int value)
+        {
+            for (int bit = 31; bit >= 0; bit--)
+            {
+                if (((value >> bit) & 1) != 0)
+                {
+                    return bit;
+                }
+            }
+
+            return -1;
+        }
+
+        private static readonly sbyte[] HbsNibbleTbl = { -1, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 };
+
+        public static int HighestBitSetNibble(int value) => HbsNibbleTbl[value & 0b1111];
+
+        public static long Replicate(long bits, int size)
+        {
+            long output = 0;
+
+            for (int bit = 0; bit < 64; bit += size)
+            {
+                output |= bits << bit;
+            }
+
+            return output;
+        }
+
+        public static long FillWithOnes(int bits)
+        {
+            return bits == 64 ? -1L : (1L << bits) - 1;
+        }
+
+        public static long RotateRight(long bits, int shift, int size)
+        {
+            return (long)RotateRight((ulong)bits, shift, size);
+        }
+
+        public static ulong RotateRight(ulong bits, int shift, int size)
+        {
+            return (bits >> shift) | (bits << (size - shift));
+        }
+    }
+}
-- 
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