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feature: .NET 10 (ryubing/ryujinx!214)
See merge request ryubing/ryujinx!214
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@@ -0,0 +1,74 @@
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using System.Runtime.InteropServices;
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namespace ARMeilleure.Instructions
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{
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static partial class SoftFallback
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{
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private const uint Crc32RevPoly = 0xedb88320;
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private const uint Crc32cRevPoly = 0x82f63b78;
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[UnmanagedCallersOnly]
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public static uint Crc32b(uint crc, byte value) => Crc32(crc, Crc32RevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32h(uint crc, ushort value) => Crc32h(crc, Crc32RevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32w(uint crc, uint value) => Crc32w(crc, Crc32RevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32x(uint crc, ulong value) => Crc32x(crc, Crc32RevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32cb(uint crc, byte value) => Crc32(crc, Crc32cRevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32ch(uint crc, ushort value) => Crc32h(crc, Crc32cRevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32cw(uint crc, uint value) => Crc32w(crc, Crc32cRevPoly, value);
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[UnmanagedCallersOnly]
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public static uint Crc32cx(uint crc, ulong value) => Crc32x(crc, Crc32cRevPoly, value);
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private static uint Crc32h(uint crc, uint poly, ushort val)
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{
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crc = Crc32(crc, poly, (byte)(val >> 0));
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crc = Crc32(crc, poly, (byte)(val >> 8));
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return crc;
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}
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private static uint Crc32w(uint crc, uint poly, uint val)
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{
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crc = Crc32(crc, poly, (byte)(val >> 0));
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crc = Crc32(crc, poly, (byte)(val >> 8));
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crc = Crc32(crc, poly, (byte)(val >> 16));
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crc = Crc32(crc, poly, (byte)(val >> 24));
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return crc;
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}
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private static uint Crc32x(uint crc, uint poly, ulong val)
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{
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crc = Crc32(crc, poly, (byte)(val >> 0));
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crc = Crc32(crc, poly, (byte)(val >> 8));
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crc = Crc32(crc, poly, (byte)(val >> 16));
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crc = Crc32(crc, poly, (byte)(val >> 24));
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crc = Crc32(crc, poly, (byte)(val >> 32));
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crc = Crc32(crc, poly, (byte)(val >> 40));
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crc = Crc32(crc, poly, (byte)(val >> 48));
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crc = Crc32(crc, poly, (byte)(val >> 56));
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return crc;
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}
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private static uint Crc32(uint crc, uint poly, byte val)
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{
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crc ^= val;
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for (int bit = 7; bit >= 0; bit--)
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{
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uint mask = (uint)(-(int)(crc & 1));
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crc = (crc >> 1) ^ (poly & mask);
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}
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return crc;
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}
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}
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}
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