diff options
Diffstat (limited to 'ChocolArm64/Decoders/BitUtils.cs')
-rw-r--r-- | ChocolArm64/Decoders/BitUtils.cs | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/ChocolArm64/Decoders/BitUtils.cs b/ChocolArm64/Decoders/BitUtils.cs deleted file mode 100644 index 8b9fb5e3..00000000 --- a/ChocolArm64/Decoders/BitUtils.cs +++ /dev/null @@ -1,59 +0,0 @@ -namespace ChocolArm64.Decoders -{ - 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 int RotateRight(int bits, int shift, int size) - { - return (int)RotateRight((uint)bits, shift, size); - } - - public static uint RotateRight(uint bits, int shift, int size) - { - return (bits >> shift) | (bits << (size - shift)); - } - - 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)); - } - } -} |