diff options
Diffstat (limited to 'ChocolArm64/Instruction/ASoftFallback.cs')
| -rw-r--r-- | ChocolArm64/Instruction/ASoftFallback.cs | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/ChocolArm64/Instruction/ASoftFallback.cs b/ChocolArm64/Instruction/ASoftFallback.cs index d626622a..5c0a9c8e 100644 --- a/ChocolArm64/Instruction/ASoftFallback.cs +++ b/ChocolArm64/Instruction/ASoftFallback.cs @@ -30,6 +30,14 @@ namespace ChocolArm64.Instruction return (ulong)Size; } + public static uint CountSetBits8(uint Value) + { + Value = ((Value >> 1) & 0x55) + (Value & 0x55); + Value = ((Value >> 2) & 0x33) + (Value & 0x33); + + return (Value >> 4) + (Value & 0x0f); + } + private const uint Crc32RevPoly = 0xedb88320; private const uint Crc32cRevPoly = 0x82f63b78; @@ -89,6 +97,14 @@ namespace ChocolArm64.Instruction return Crc; } + public static uint ReverseBits8(uint Value) + { + Value = ((Value & 0xaa) >> 1) | ((Value & 0x55) << 1); + Value = ((Value & 0xcc) >> 2) | ((Value & 0x33) << 2); + + return (Value >> 4) | ((Value & 0x0f) << 4); + } + public static uint ReverseBits32(uint Value) { Value = ((Value & 0xaaaaaaaa) >> 1) | ((Value & 0x55555555) << 1); @@ -101,10 +117,10 @@ namespace ChocolArm64.Instruction public 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 & 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); |