using System;
using System.Collections.Generic;
using System.Diagnostics;
namespace Unity.Burst.Intrinsics
{
public unsafe static partial class X86
{
/// <summary>
/// SSE 4.2 intrinsics
/// </summary>
public static class Sse4_2
{
/// <summary>
/// Evaluates to true at compile time if SSE 4.2 intrinsics are supported.
/// </summary>
public static bool IsSse42Supported { get { return false; } }
/// <summary>
/// Constants for string comparison intrinsics
/// </summary>
[Flags]
public enum SIDD
{
/// <summary>
/// Compare 8-bit unsigned characters
/// </summary>
UBYTE_OPS = 0x00,
/// <summary>
/// Compare 16-bit unsigned characters
/// </summary>
UWORD_OPS = 0x01,
/// <summary>
/// Compare 8-bit signed characters
/// </summary>
SBYTE_OPS = 0x02,
/// <summary>
/// Compare 16-bit signed characters
/// </summary>
SWORD_OPS = 0x03,
/// <summary>
/// Compare any equal
/// </summary>
CMP_EQUAL_ANY = 0x00,
/// <summary>
/// Compare ranges
/// </summary>
CMP_RANGES = 0x04,
/// <summary>
/// Compare equal each
/// </summary>
CMP_EQUAL_EACH = 0x08,
/// <summary>
/// Compare equal ordered
/// </summary>
CMP_EQUAL_ORDERED = 0x0C,
/// <summary>
/// Normal result polarity
/// </summary>
POSITIVE_POLARITY = 0x00,
/// <summary>
/// Negate results
/// </summary>
NEGATIVE_POLARITY = 0x10,
/// <summary>
/// Normal results only before end of string
/// </summary>
MASKED_POSITIVE_POLARITY = 0x20,
/// <summary>
/// Negate results only before end of string
/// </summary>
MASKED_NEGATIVE_POLARITY = 0x30,
/// <summary>
/// Index only: return least significant bit
/// </summary>
LEAST_SIGNIFICANT = 0x00,
/// <summary>
/// Index only: return most significan bit
/// </summary>
MOST_SIGNIFICANT = 0x40,
/// <summary>
/// mask only: return bit mask
/// </summary>
BIT_MASK = 0x00,
/// <summary>
/// mask only: return byte/word mask
/// </summary>
UNIT_MASK = 0x40,
}
/*
* Intrinsics for text/string processing.
*/
private unsafe struct StrBoolArray
{
public fixed ushort Bits[16];
public void SetBit(int aindex, int bindex, bool val)
{
fixed (ushort* b = Bits)
{
if (val)
b[aindex] |= (ushort)(1 << bindex);
else
b[aindex] &= (ushort)(~(1 << bindex));
}
}
public bool GetBit(int aindex, int bindex)
{
fixed (ushort* b = Bits)
{
return (b[aindex] & (1 << bindex)) != 0;
}
}
}
private static v128 cmpistrm_emulation<T>(T* a, T* b, int len, int imm8, int allOnes, T allOnesT) where T : unmanaged, IComparable<T>, IEquatable<T>
{
int intRes2 = ComputeStrCmpIntRes2<T>(a, ComputeStringLength<T>(a, len), b, ComputeStringLength<T>(b, len), len, imm8, allOnes);
return ComputeStrmOutput(len, imm8, allOnesT, intRes2);
}
private static v128 cmpestrm_emulation<T>(T* a, int alen, T* b, int blen, int len, int imm8, int allOnes, T allOnesT) where T : unmanaged, IComparable<T>, IEquatable<T>
{
int intRes2 = ComputeStrCmpIntRes2<T>(a, alen, b, blen, len, imm8, allOnes);
return ComputeStrmOutput(len, imm8, allOnesT, intRes2);
}
private static v128 ComputeStrmOutput<T>(int len, int imm8, T allOnesT, int intRes2) where T : unmanaged, IComparable<T>, IEquatable<T>
{
// output
v128 result = default;
if ((imm8 & (1 << 6)) != 0)
{
// byte / word mask
T* maskDst = (T*)&result.Byte0;
for (int i = 0; i < len; ++i)
{
if ((intRes2 & (1 << i)) != 0)
{
maskDst[i] = allOnesT;
}
else
{
maskDst[i] = default(T);
}
}
}
else
{
// bit mask
result.SInt0 = intRes2;
}
return result;
}
private static int cmpistri_emulation<T>(T* a, T* b, int len, int imm8, int allOnes, T allOnesT) where T : unmanaged, IComparable<T>, IEquatable<T>
{
int intRes2 = ComputeStrCmpIntRes2<T>(a, ComputeStringLength<T>(a, len), b, ComputeStringLength<T>(b, len), len, imm8, allOnes);
return ComputeStriOutput(len, imm8, intRes2);
}
private static int cmpestri_emulation<T>(T* a, int alen, T* b, int blen, int len, int imm8, int allOnes, T allOnesT) where T : unmanaged, IComparable<T>, IEquatable<T>
{
int intRes2 = ComputeStrCmpIntRes2<T>(a, alen, b, blen, len, imm8, allOnes);
return ComputeStriOutput(len, imm8, intRes2);
}
private static int ComputeStriOutput(int len, int imm8, int intRes2)
{
// output
if ((imm8 & (1 << 6)) == 0)
{
int bit = 0;
while (bit < len)
{
if ((intRes2 & (1 << bit)) != 0)
return bit;
++bit;
}
}
else
{
int bit = len - 1;
while (bit >= 0)
{
if ((intRes2 & (1 << bit)) != 0)
return bit;
--bit;
}
}
return len;
}
private static int ComputeStringLength<T>(T* ptr, int max) where T : unmanaged, IEquatable<T>
{
for (int i = 0; i < max; ++i)
{
if (EqualityComparer<T>.Default.Equals(ptr[i], default(T)))
{
return i;
}
}
return max;
}
private static int ComputeStrCmpIntRes2<T>(T* a, int alen, T* b, int blen, int len, int imm8, int allOnes) where T : unmanaged, IComparable<T>, IEquatable<T>
{
#if !NET_DOTS
bool aInvalid = false;
bool bInvalid = false;
StrBoolArray boolRes = default;
int i, j, intRes2;
for (i = 0; i < len; ++i)
{
T aCh = a[i];
if (i == alen)
aInvalid = true;
bInvalid = false;
for (j = 0; j < len; ++j)
{
T bCh = b[j];
if (j == blen)
bInvalid = true;
bool match;
// override comparisons for invalid characters
switch ((imm8 >> 2) & 3)
{
case 0: // equal any
match = EqualityComparer<T>.Default.Equals(aCh, bCh);
if (!aInvalid && bInvalid)
match = false;
else if (aInvalid && !bInvalid)
match = false;
else if (aInvalid && bInvalid)
match = false;
break;
case 1: // ranges
if (0 == (i & 1))
match = Comparer<T>.Default.Compare(bCh, aCh) >= 0;
else
match = Comparer<T>.Default.Compare(bCh, aCh) <= 0;
if (!aInvalid && bInvalid)
match = false;
else if (aInvalid && !bInvalid)
match = false;
else if (aInvalid && bInvalid)
match = false;
break;
case 2: // equal each
match = EqualityComparer<T>.Default.Equals(aCh, bCh);
if (!aInvalid && bInvalid)
match = false;
else if (aInvalid && !bInvalid)
match = false;
else if (aInvalid && bInvalid)
match = true;
break;
default: // equal ordered
match = EqualityComparer<T>.Default.Equals(aCh, bCh);
if (!aInvalid && bInvalid)
match = false;
else if (aInvalid && !bInvalid)
match = true;
else if (aInvalid && bInvalid)
match = true;
break;
}
boolRes.SetBit(i, j, match);
}
}
int intRes1 = 0;
// aggregate results
switch ((imm8 >> 2) & 3)
{
case 0: // equal any
for (i = 0; i < len; ++i)
{
for (j = 0; j < len; ++j)
{
intRes1 |= (boolRes.GetBit(j, i) ? 1 : 0) << i;
}
}
/*
for (i = 0; i < len; ++i)
{
intRes1 |= boolRes.Bits[i];
}*/
break;
case 1: // ranges
for (i = 0; i < len; ++i)
{
for (j = 0; j < len; j += 2)
{
intRes1 |= ((boolRes.GetBit(j, i) && boolRes.GetBit(j + 1, i)) ? 1 : 0) << i;
}
}
break;
case 2: // equal each
for (i = 0; i < len; ++i)
{
intRes1 |= (boolRes.GetBit(i, i) ? 1 : 0) << i;
}
break;
case 3: // equal ordered
intRes1 = allOnes;
for (i = 0; i < len; ++i)
{
int k = i;
for (j = 0; j < len - i; ++j)
{
if (!boolRes.GetBit(j, k))
intRes1 &= ~(1 << i);
k += 1;
}
}
break;
}
intRes2 = 0;
// optionally negate results
bInvalid = false;
for (i = 0; i < len; ++i)
{
if ((imm8 & (1 << 4)) != 0)
{
if ((imm8 & (1 << 5)) != 0) // only negate valid
{
if (EqualityComparer<T>.Default.Equals(b[i], default(T)))
{
bInvalid = true;
}
if (bInvalid) // invalid, don't negate
intRes2 |= intRes1 & (1 << i);
else // valid, negate
intRes2 |= (~intRes1) & (1 << i);
}
else // negate all
intRes2 |= (~intRes1) & (1 << i);
}
else // don't negate
intRes2 |= intRes1 & (1 << i);
}
return intRes2;
#else
throw new NotImplementedException("dots runtime C# lacks comparer");
#endif
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and store the generated mask in dst.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Vector</returns>
[DebuggerStepThrough]
public static v128 cmpistrm(v128 a, v128 b, int imm8)
{
v128 c;
if (0 == (imm8 & 1))
if (0 == (imm8 & 2))
c = cmpistrm_emulation(&a.Byte0, &b.Byte0, 16, imm8, 0xffff, (byte)0xff);
else
c = cmpistrm_emulation(&a.SByte0, &b.SByte0, 16, imm8, 0xffff, (sbyte)-1);
else
if (0 == (imm8 & 2))
c = cmpistrm_emulation(&a.UShort0, &b.UShort0, 8, imm8, 0xff, (ushort)0xffff);
else
c = cmpistrm_emulation(&a.SShort0, &b.SShort0, 8, imm8, 0xff, (short)-1);
return c;
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and store the generated index in dst.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Index</returns>
[DebuggerStepThrough]
public static int cmpistri(v128 a, v128 b, int imm8)
{
if (0 == (imm8 & 1))
if (0 == (imm8 & 2))
return cmpistri_emulation(&a.Byte0, &b.Byte0, 16, imm8, 0xffff, (byte)0xff);
else
return cmpistri_emulation(&a.SByte0, &b.SByte0, 16, imm8, 0xffff, (sbyte)-1);
else
if (0 == (imm8 & 2))
return cmpistri_emulation(&a.UShort0, &b.UShort0, 8, imm8, 0xff, (ushort)0xffff);
else
return cmpistri_emulation(&a.SShort0, &b.SShort0, 8, imm8, 0xff, (short)-1);
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and store the generated mask in dst.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Vector</returns>
[DebuggerStepThrough]
public static v128 cmpestrm(v128 a, int la, v128 b, int lb, int imm8)
{
v128 c;
if (0 == (imm8 & 1))
if (0 == (imm8 & 2))
c = cmpestrm_emulation(&a.Byte0, la, &b.Byte0, lb, 16, imm8, 0xffff, (byte)0xff);
else
c = cmpestrm_emulation(&a.SByte0, la, &b.SByte0, lb, 16, imm8, 0xffff, (sbyte)-1);
else
if (0 == (imm8 & 2))
c = cmpestrm_emulation(&a.UShort0, la, &b.UShort0, lb, 8, imm8, 0xff, (ushort)0xffff);
else
c = cmpestrm_emulation(&a.SShort0, la, &b.SShort0, lb, 8, imm8, 0xff, (short)-1);
return c;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and store the generated index in dst.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Index</returns>
[DebuggerStepThrough]
public static int cmpestri(v128 a, int la, v128 b, int lb, int imm8)
{
if (0 == (imm8 & 1))
if (0 == (imm8 & 2))
return cmpestri_emulation(&a.Byte0, la, &b.Byte0, lb, 16, imm8, 0xffff, (byte)0xff);
else
return cmpestri_emulation(&a.SByte0, la, &b.SByte0, lb, 16, imm8, 0xffff, (sbyte)-1);
else
if (0 == (imm8 & 2))
return cmpestri_emulation(&a.UShort0, la, &b.UShort0, lb, 8, imm8, 0xff, (ushort)0xffff);
else
return cmpestri_emulation(&a.SShort0, la, &b.SShort0, lb, 8, imm8, 0xff, (short)-1);
}
/*
* Intrinsics for text/string processing and reading values of EFlags.
*/
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if any character in b was null, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpistrz(v128 a, v128 b, int imm8)
{
if (0 == (imm8 & 1))
return ComputeStringLength<byte>(&b.Byte0, 16) < 16 ? 1 : 0;
else
return ComputeStringLength<ushort>(&b.UShort0, 8) < 8 ? 1 : 0;
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if the resulting mask was non-zero, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpistrc(v128 a, v128 b, int imm8)
{
v128 q = cmpistrm(a, b, imm8);
return q.SInt0 == 0 && q.SInt1 == 0 && q.SInt2 == 0 && q.SInt3 == 0 ? 0 : 1;
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if any character in a was null, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpistrs(v128 a, v128 b, int imm8)
{
if (0 == (imm8 & 1))
return ComputeStringLength<byte>(&a.Byte0, 16) < 16 ? 1 : 0;
else
return ComputeStringLength<ushort>(&a.UShort0, 8) < 8 ? 1 : 0;
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and returns bit 0 of the resulting bit mask.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Bit 0</returns>
[DebuggerStepThrough]
public static int cmpistro(v128 a, v128 b, int imm8)
{
int intRes2;
if (0 == (imm8 & 1))
{
int al = ComputeStringLength<byte>(&a.Byte0, 16);
int bl = ComputeStringLength<byte>(&b.Byte0, 16);
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<byte>(&a.Byte0, al, &b.Byte0, bl, 16, imm8, 0xffff);
else
intRes2 = ComputeStrCmpIntRes2<sbyte>(&a.SByte0, al, &b.SByte0, bl, 16, imm8, 0xffff);
}
else
{
int al = ComputeStringLength<ushort>(&a.UShort0, 8);
int bl = ComputeStringLength<ushort>(&b.UShort0, 8);
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<ushort>(&a.UShort0, al, &b.UShort0, bl, 8, imm8, 0xff);
else
intRes2 = ComputeStrCmpIntRes2<short>(&a.SShort0, al, &b.SShort0, bl, 8, imm8, 0xff);
}
return intRes2 & 1;
}
/// <summary>
/// Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if b did not contain a null character and the resulting mask was zero, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpistra(v128 a, v128 b, int imm8)
{
return ((~cmpistrc(a, b, imm8)) & (~cmpistrz(a, b, imm8))) & 1;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if any character in b was null, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpestrz(v128 a, int la, v128 b, int lb, int imm8)
{
int size = (imm8 & 1) == 1 ? 16 : 8;
int upperBound = (128 / size) - 1;
return lb <= upperBound ? 1 : 0;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if the resulting mask was non-zero, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpestrc(v128 a, int la, v128 b, int lb, int imm8)
{
int intRes2;
if (0 == (imm8 & 1))
{
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<byte>(&a.Byte0, la, &b.Byte0, lb, 16, imm8, 0xffff);
else
intRes2 = ComputeStrCmpIntRes2<sbyte>(&a.SByte0, la, &b.SByte0, lb, 16, imm8, 0xffff);
}
else
{
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<ushort>(&a.UShort0, la, &b.UShort0, lb, 8, imm8, 0xff);
else
intRes2 = ComputeStrCmpIntRes2<short>(&a.SShort0, la, &b.SShort0, lb, 8, imm8, 0xff);
}
return intRes2 != 0 ? 1 : 0;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if any character in a was null, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpestrs(v128 a, int la, v128 b, int lb, int imm8)
{
if ((imm8 & 1 << 0) == 0)
return la < 16 ? 1 : 0;
else
return la < 8 ? 1 : 0;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns bit 0 of the resulting bit mask.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Bit 0</returns>
[DebuggerStepThrough]
public static int cmpestro(v128 a, int la, v128 b, int lb, int imm8)
{
int intRes2;
if (0 == (imm8 & 1))
{
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<byte>(&a.Byte0, la, &b.Byte0, lb, 16, imm8, 0xffff);
else
intRes2 = ComputeStrCmpIntRes2<sbyte>(&a.SByte0, la, &b.SByte0, lb, 16, imm8, 0xffff);
}
else
{
if (0 == (imm8 & 2))
intRes2 = ComputeStrCmpIntRes2<ushort>(&a.UShort0, la, &b.UShort0, lb, 8, imm8, 0xff);
else
intRes2 = ComputeStrCmpIntRes2<short>(&a.SShort0, la, &b.SShort0, lb, 8, imm8, 0xff);
}
return intRes2 & 1;
}
/// <summary>
/// Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if b did not contain a null character and the resulting mask was zero, and 0 otherwise.
/// </summary>
/// <param name="a">Vector a</param>
/// <param name="b">Vector b</param>
/// <param name="la">Length a</param>
/// <param name="lb">Length b</param>
/// <param name="imm8">Control</param>
/// <returns>Boolean value</returns>
[DebuggerStepThrough]
public static int cmpestra(v128 a, int la, v128 b, int lb, int imm8)
{
return ((~cmpestrc(a, la, b, lb, imm8)) & (~cmpestrz(a, la, b, lb, imm8))) & 1;
}
/// <summary>
/// Compare packed 64-bit integers in a and b for greater-than, and store the results in dst.
/// </summary>
/// <param name="val1">Vector a</param>
/// <param name="val2">Vector b</param>
/// <returns>Vector</returns>
[DebuggerStepThrough]
public static v128 cmpgt_epi64(v128 val1, v128 val2)
{
v128 result = default;
result.SLong0 = val1.SLong0 > val2.SLong0 ? -1 : 0;
result.SLong1 = val1.SLong1 > val2.SLong1 ? -1 : 0;
return result;
}
/*
* Accumulate CRC32 (polynomial 0x11EDC6F41) value
*/
private static readonly uint[] crctab = new uint[]
{
0x00000000U,0xF26B8303U,0xE13B70F7U,0x1350F3F4U,0xC79A971FU,0x35F1141CU,0x26A1E7E8U,0xD4CA64EBU,
0x8AD958CFU,0x78B2DBCCU,0x6BE22838U,0x9989AB3BU,0x4D43CFD0U,0xBF284CD3U,0xAC78BF27U,0x5E133C24U,
0x105EC76FU,0xE235446CU,0xF165B798U,0x030E349BU,0xD7C45070U,0x25AFD373U,0x36FF2087U,0xC494A384U,
0x9A879FA0U,0x68EC1CA3U,0x7BBCEF57U,0x89D76C54U,0x5D1D08BFU,0xAF768BBCU,0xBC267848U,0x4E4DFB4BU,
0x20BD8EDEU,0xD2D60DDDU,0xC186FE29U,0x33ED7D2AU,0xE72719C1U,0x154C9AC2U,0x061C6936U,0xF477EA35U,
0xAA64D611U,0x580F5512U,0x4B5FA6E6U,0xB93425E5U,0x6DFE410EU,0x9F95C20DU,0x8CC531F9U,0x7EAEB2FAU,
0x30E349B1U,0xC288CAB2U,0xD1D83946U,0x23B3BA45U,0xF779DEAEU,0x05125DADU,0x1642AE59U,0xE4292D5AU,
0xBA3A117EU,0x4851927DU,0x5B016189U,0xA96AE28AU,0x7DA08661U,0x8FCB0562U,0x9C9BF696U,0x6EF07595U,
0x417B1DBCU,0xB3109EBFU,0xA0406D4BU,0x522BEE48U,0x86E18AA3U,0x748A09A0U,0x67DAFA54U,0x95B17957U,
0xCBA24573U,0x39C9C670U,0x2A993584U,0xD8F2B687U,0x0C38D26CU,0xFE53516FU,0xED03A29BU,0x1F682198U,
0x5125DAD3U,0xA34E59D0U,0xB01EAA24U,0x42752927U,0x96BF4DCCU,0x64D4CECFU,0x77843D3BU,0x85EFBE38U,
0xDBFC821CU,0x2997011FU,0x3AC7F2EBU,0xC8AC71E8U,0x1C661503U,0xEE0D9600U,0xFD5D65F4U,0x0F36E6F7U,
0x61C69362U,0x93AD1061U,0x80FDE395U,0x72966096U,0xA65C047DU,0x5437877EU,0x4767748AU,0xB50CF789U,
0xEB1FCBADU,0x197448AEU,0x0A24BB5AU,0xF84F3859U,0x2C855CB2U,0xDEEEDFB1U,0xCDBE2C45U,0x3FD5AF46U,
0x7198540DU,0x83F3D70EU,0x90A324FAU,0x62C8A7F9U,0xB602C312U,0x44694011U,0x5739B3E5U,0xA55230E6U,
0xFB410CC2U,0x092A8FC1U,0x1A7A7C35U,0xE811FF36U,0x3CDB9BDDU,0xCEB018DEU,0xDDE0EB2AU,0x2F8B6829U,
0x82F63B78U,0x709DB87BU,0x63CD4B8FU,0x91A6C88CU,0x456CAC67U,0xB7072F64U,0xA457DC90U,0x563C5F93U,
0x082F63B7U,0xFA44E0B4U,0xE9141340U,0x1B7F9043U,0xCFB5F4A8U,0x3DDE77ABU,0x2E8E845FU,0xDCE5075CU,
0x92A8FC17U,0x60C37F14U,0x73938CE0U,0x81F80FE3U,0x55326B08U,0xA759E80BU,0xB4091BFFU,0x466298FCU,
0x1871A4D8U,0xEA1A27DBU,0xF94AD42FU,0x0B21572CU,0xDFEB33C7U,0x2D80B0C4U,0x3ED04330U,0xCCBBC033U,
0xA24BB5A6U,0x502036A5U,0x4370C551U,0xB11B4652U,0x65D122B9U,0x97BAA1BAU,0x84EA524EU,0x7681D14DU,
0x2892ED69U,0xDAF96E6AU,0xC9A99D9EU,0x3BC21E9DU,0xEF087A76U,0x1D63F975U,0x0E330A81U,0xFC588982U,
0xB21572C9U,0x407EF1CAU,0x532E023EU,0xA145813DU,0x758FE5D6U,0x87E466D5U,0x94B49521U,0x66DF1622U,
0x38CC2A06U,0xCAA7A905U,0xD9F75AF1U,0x2B9CD9F2U,0xFF56BD19U,0x0D3D3E1AU,0x1E6DCDEEU,0xEC064EEDU,
0xC38D26C4U,0x31E6A5C7U,0x22B65633U,0xD0DDD530U,0x0417B1DBU,0xF67C32D8U,0xE52CC12CU,0x1747422FU,
0x49547E0BU,0xBB3FFD08U,0xA86F0EFCU,0x5A048DFFU,0x8ECEE914U,0x7CA56A17U,0x6FF599E3U,0x9D9E1AE0U,
0xD3D3E1ABU,0x21B862A8U,0x32E8915CU,0xC083125FU,0x144976B4U,0xE622F5B7U,0xF5720643U,0x07198540U,
0x590AB964U,0xAB613A67U,0xB831C993U,0x4A5A4A90U,0x9E902E7BU,0x6CFBAD78U,0x7FAB5E8CU,0x8DC0DD8FU,
0xE330A81AU,0x115B2B19U,0x020BD8EDU,0xF0605BEEU,0x24AA3F05U,0xD6C1BC06U,0xC5914FF2U,0x37FACCF1U,
0x69E9F0D5U,0x9B8273D6U,0x88D28022U,0x7AB90321U,0xAE7367CAU,0x5C18E4C9U,0x4F48173DU,0xBD23943EU,
0xF36E6F75U,0x0105EC76U,0x12551F82U,0xE03E9C81U,0x34F4F86AU,0xC69F7B69U,0xD5CF889DU,0x27A40B9EU,
0x79B737BAU,0x8BDCB4B9U,0x988C474DU,0x6AE7C44EU,0xBE2DA0A5U,0x4C4623A6U,0x5F16D052U,0xAD7D5351U,
};
/// <summary>
/// Starting with the initial value in crc, accumulates a CRC32 value for unsigned 32-bit integer v, and stores the result in dst.
/// </summary>
/// <param name="crc">Initial value</param>
/// <param name="v">Unsigned 32-bit integer</param>
/// <returns>Result</returns>
[DebuggerStepThrough]
public static uint crc32_u32(uint crc, uint v)
{
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v);
return crc;
}
/// <summary>
/// Starting with the initial value in crc, accumulates a CRC32 value for unsigned 8-bit integer v, and stores the result in dst.
/// </summary>
/// <param name="crc">Initial value</param>
/// <param name="v">Unsigned 8-bit integer</param>
/// <returns>Result</returns>
[DebuggerStepThrough]
public static uint crc32_u8(uint crc, byte v)
{
crc = (crc >> 8) ^ crctab[(crc ^ v) & 0xff];
return crc;
}
/// <summary>
/// Starting with the initial value in crc, accumulates a CRC32 value for unsigned 16-bit integer v, and stores the result in dst.
/// </summary>
/// <param name="crc">Initial value</param>
/// <param name="v">Unsigned 16-bit integer</param>
/// <returns>Result</returns>
[DebuggerStepThrough]
public static uint crc32_u16(uint crc, ushort v)
{
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v);
return crc;
}
/// <summary>
/// Starting with the initial value in crc, accumulates a CRC32 value for unsigned 64-bit integer v, and stores the result in dst.
/// </summary>
/// <param name="crc_ul">Initial value</param>
/// <param name="v">Unsigned 64-bit integer</param>
/// <returns>Result</returns>
[DebuggerStepThrough]
public static ulong crc32_u64(ulong crc_ul, long v)
{
uint crc = (uint)crc_ul;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v); v >>= 8;
crc = crc32_u8(crc, (byte)v);
return crc;
}
}
}
}