aboutsummaryrefslogtreecommitdiff
path: root/Ryujinx.Common/BitUtils.cs
diff options
context:
space:
mode:
Diffstat (limited to 'Ryujinx.Common/BitUtils.cs')
-rw-r--r--Ryujinx.Common/BitUtils.cs90
1 files changed, 45 insertions, 45 deletions
diff --git a/Ryujinx.Common/BitUtils.cs b/Ryujinx.Common/BitUtils.cs
index 5c858029..135b397d 100644
--- a/Ryujinx.Common/BitUtils.cs
+++ b/Ryujinx.Common/BitUtils.cs
@@ -2,103 +2,103 @@ namespace Ryujinx.Common
{
public static class BitUtils
{
- public static int AlignUp(int Value, int Size)
+ private static readonly byte[] ClzNibbleTbl = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ public static int AlignUp(int value, int size)
{
- return (Value + (Size - 1)) & -Size;
+ return (value + (size - 1)) & -size;
}
- public static ulong AlignUp(ulong Value, int Size)
+ public static ulong AlignUp(ulong value, int size)
{
- return (ulong)AlignUp((long)Value, Size);
+ return (ulong)AlignUp((long)value, size);
}
- public static long AlignUp(long Value, int Size)
+ public static long AlignUp(long value, int size)
{
- return (Value + (Size - 1)) & -(long)Size;
+ return (value + (size - 1)) & -(long)size;
}
- public static int AlignDown(int Value, int Size)
+ public static int AlignDown(int value, int size)
{
- return Value & -Size;
+ return value & -size;
}
- public static ulong AlignDown(ulong Value, int Size)
+ public static ulong AlignDown(ulong value, int size)
{
- return (ulong)AlignDown((long)Value, Size);
+ return (ulong)AlignDown((long)value, size);
}
- public static long AlignDown(long Value, int Size)
+ public static long AlignDown(long value, int size)
{
- return Value & -(long)Size;
+ return value & -(long)size;
}
- public static ulong DivRoundUp(ulong Value, uint Dividend)
+ public static ulong DivRoundUp(ulong value, uint dividend)
{
- return (Value + Dividend - 1) / Dividend;
+ return (value + dividend - 1) / dividend;
}
- public static long DivRoundUp(long Value, int Dividend)
+ public static long DivRoundUp(long value, int dividend)
{
- return (Value + Dividend - 1) / Dividend;
+ return (value + dividend - 1) / dividend;
}
- public static bool IsPowerOfTwo32(int Value)
+ public static bool IsPowerOfTwo32(int value)
{
- return Value != 0 && (Value & (Value - 1)) == 0;
+ return value != 0 && (value & (value - 1)) == 0;
}
- public static bool IsPowerOfTwo64(long Value)
+ public static bool IsPowerOfTwo64(long value)
{
- return Value != 0 && (Value & (Value - 1)) == 0;
+ return value != 0 && (value & (value - 1)) == 0;
}
- public static int CountLeadingZeros32(int Value)
+ public static int CountLeadingZeros32(int value)
{
- return (int)CountLeadingZeros((ulong)Value, 32);
+ return (int)CountLeadingZeros((ulong)value, 32);
}
- public static int CountLeadingZeros64(long Value)
+ public static int CountLeadingZeros64(long value)
{
- return (int)CountLeadingZeros((ulong)Value, 64);
+ return (int)CountLeadingZeros((ulong)value, 64);
}
- private static readonly byte[] ClzNibbleTbl = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 };
-
- private static ulong CountLeadingZeros(ulong Value, int Size) // Size is 8, 16, 32 or 64 (SIMD&FP or Base Inst.).
+ private static ulong CountLeadingZeros(ulong value, int size)
{
- if (Value == 0ul)
+ if (value == 0ul)
{
- return (ulong)Size;
+ return (ulong)size;
}
- int NibbleIdx = Size;
- int PreCount, Count = 0;
+ int nibbleIdx = size;
+ int preCount, count = 0;
do
{
- NibbleIdx -= 4;
- PreCount = ClzNibbleTbl[(Value >> NibbleIdx) & 0b1111];
- Count += PreCount;
+ nibbleIdx -= 4;
+ preCount = ClzNibbleTbl[(value >> nibbleIdx) & 0b1111];
+ count += preCount;
}
- while (PreCount == 4);
+ while (preCount == 4);
- return (ulong)Count;
+ return (ulong)count;
}
- public static long ReverseBits64(long Value)
+ public static long ReverseBits64(long value)
{
- return (long)ReverseBits64((ulong)Value);
+ return (long)ReverseBits64((ulong)value);
}
- private static ulong ReverseBits64(ulong Value)
+ private static ulong ReverseBits64(ulong value)
{
- Value = ((Value & 0xaaaaaaaaaaaaaaaa) >> 1 ) | ((Value & 0x5555555555555555) << 1 );
- Value = ((Value & 0xcccccccccccccccc) >> 2 ) | ((Value & 0x3333333333333333) << 2 );
- Value = ((Value & 0xf0f0f0f0f0f0f0f0) >> 4 ) | ((Value & 0x0f0f0f0f0f0f0f0f) << 4 );
- Value = ((Value & 0xff00ff00ff00ff00) >> 8 ) | ((Value & 0x00ff00ff00ff00ff) << 8 );
- Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
+ value = ((value & 0xaaaaaaaaaaaaaaaa) >> 1 ) | ((value & 0x5555555555555555) << 1 );
+ value = ((value & 0xcccccccccccccccc) >> 2 ) | ((value & 0x3333333333333333) << 2 );
+ value = ((value & 0xf0f0f0f0f0f0f0f0) >> 4 ) | ((value & 0x0f0f0f0f0f0f0f0f) << 4 );
+ value = ((value & 0xff00ff00ff00ff00) >> 8 ) | ((value & 0x00ff00ff00ff00ff) << 8 );
+ value = ((value & 0xffff0000ffff0000) >> 16) | ((value & 0x0000ffff0000ffff) << 16);
- return (Value >> 32) | (Value << 32);
+ return (value >> 32) | (value << 32);
}
}
} \ No newline at end of file