mcs/class/System.Numerics.Vectors/System.Numerics/Register.cs

   1 // Licensed to the .NET Foundation under one or more agreements.
   2 // The .NET Foundation licenses this file to you under the MIT license.
   3 // See the LICENSE file in the project root for more information.
   4
   5 using System.Runtime.InteropServices;
   6
   7 namespace System.Numerics
   8 {
   9     /// <summary>
  10     /// A structure describing the layout of an SSE2-sized register.
  11     /// Contains overlapping fields representing the set of valid numeric types.
  12     /// Allows the generic Vector'T struct to contain an explicit field layout.
  13     /// </summary>
  14     [StructLayout(LayoutKind.Explicit)]
  15     internal struct Register
  16     {
  17         #region Internal Storage Fields
  18         // Internal System.Byte Fields
  19         [FieldOffset(0)]
  20         internal Byte byte_0;
  21         [FieldOffset(1)]
  22         internal Byte byte_1;
  23         [FieldOffset(2)]
  24         internal Byte byte_2;
  25         [FieldOffset(3)]
  26         internal Byte byte_3;
  27         [FieldOffset(4)]
  28         internal Byte byte_4;
  29         [FieldOffset(5)]
  30         internal Byte byte_5;
  31         [FieldOffset(6)]
  32         internal Byte byte_6;
  33         [FieldOffset(7)]
  34         internal Byte byte_7;
  35         [FieldOffset(8)]
  36         internal Byte byte_8;
  37         [FieldOffset(9)]
  38         internal Byte byte_9;
  39         [FieldOffset(10)]
  40         internal Byte byte_10;
  41         [FieldOffset(11)]
  42         internal Byte byte_11;
  43         [FieldOffset(12)]
  44         internal Byte byte_12;
  45         [FieldOffset(13)]
  46         internal Byte byte_13;
  47         [FieldOffset(14)]
  48         internal Byte byte_14;
  49         [FieldOffset(15)]
  50         internal Byte byte_15;
  51
  52         // Internal System.SByte Fields
  53         [FieldOffset(0)]
  54         internal SByte sbyte_0;
  55         [FieldOffset(1)]
  56         internal SByte sbyte_1;
  57         [FieldOffset(2)]
  58         internal SByte sbyte_2;
  59         [FieldOffset(3)]
  60         internal SByte sbyte_3;
  61         [FieldOffset(4)]
  62         internal SByte sbyte_4;
  63         [FieldOffset(5)]
  64         internal SByte sbyte_5;
  65         [FieldOffset(6)]
  66         internal SByte sbyte_6;
  67         [FieldOffset(7)]
  68         internal SByte sbyte_7;
  69         [FieldOffset(8)]
  70         internal SByte sbyte_8;
  71         [FieldOffset(9)]
  72         internal SByte sbyte_9;
  73         [FieldOffset(10)]
  74         internal SByte sbyte_10;
  75         [FieldOffset(11)]
  76         internal SByte sbyte_11;
  77         [FieldOffset(12)]
  78         internal SByte sbyte_12;
  79         [FieldOffset(13)]
  80         internal SByte sbyte_13;
  81         [FieldOffset(14)]
  82         internal SByte sbyte_14;
  83         [FieldOffset(15)]
  84         internal SByte sbyte_15;
  85
  86         // Internal System.UInt16 Fields
  87         [FieldOffset(0)]
  88         internal UInt16 uint16_0;
  89         [FieldOffset(2)]
  90         internal UInt16 uint16_1;
  91         [FieldOffset(4)]
  92         internal UInt16 uint16_2;
  93         [FieldOffset(6)]
  94         internal UInt16 uint16_3;
  95         [FieldOffset(8)]
  96         internal UInt16 uint16_4;
  97         [FieldOffset(10)]
  98         internal UInt16 uint16_5;
  99         [FieldOffset(12)]
 100         internal UInt16 uint16_6;
 101         [FieldOffset(14)]
 102         internal UInt16 uint16_7;
 103
 104         // Internal System.Int16 Fields
 105         [FieldOffset(0)]
 106         internal Int16 int16_0;
 107         [FieldOffset(2)]
 108         internal Int16 int16_1;
 109         [FieldOffset(4)]
 110         internal Int16 int16_2;
 111         [FieldOffset(6)]
 112         internal Int16 int16_3;
 113         [FieldOffset(8)]
 114         internal Int16 int16_4;
 115         [FieldOffset(10)]
 116         internal Int16 int16_5;
 117         [FieldOffset(12)]
 118         internal Int16 int16_6;
 119         [FieldOffset(14)]
 120         internal Int16 int16_7;
 121
 122         // Internal System.UInt32 Fields
 123         [FieldOffset(0)]
 124         internal UInt32 uint32_0;
 125         [FieldOffset(4)]
 126         internal UInt32 uint32_1;
 127         [FieldOffset(8)]
 128         internal UInt32 uint32_2;
 129         [FieldOffset(12)]
 130         internal UInt32 uint32_3;
 131
 132         // Internal System.Int32 Fields
 133         [FieldOffset(0)]
 134         internal Int32 int32_0;
 135         [FieldOffset(4)]
 136         internal Int32 int32_1;
 137         [FieldOffset(8)]
 138         internal Int32 int32_2;
 139         [FieldOffset(12)]
 140         internal Int32 int32_3;
 141
 142         // Internal System.UInt64 Fields
 143         [FieldOffset(0)]
 144         internal UInt64 uint64_0;
 145         [FieldOffset(8)]
 146         internal UInt64 uint64_1;
 147
 148         // Internal System.Int64 Fields
 149         [FieldOffset(0)]
 150         internal Int64 int64_0;
 151         [FieldOffset(8)]
 152         internal Int64 int64_1;
 153
 154         // Internal System.Single Fields
 155         [FieldOffset(0)]
 156         internal Single single_0;
 157         [FieldOffset(4)]
 158         internal Single single_1;
 159         [FieldOffset(8)]
 160         internal Single single_2;
 161         [FieldOffset(12)]
 162         internal Single single_3;
 163
 164         // Internal System.Double Fields
 165         [FieldOffset(0)]
 166         internal Double double_0;
 167         [FieldOffset(8)]
 168         internal Double double_1;
 169
 170         #endregion Internal Storage Fields
 171     }
 172 }