45 lines
1.7 KiB
C#
45 lines
1.7 KiB
C#
namespace ARMeilleure.Common
|
|
{
|
|
/// <summary>
|
|
/// Represents a level in an <see cref="IAddressTable{TEntry}"/>.
|
|
/// </summary>
|
|
public readonly struct AddressTableLevel
|
|
{
|
|
/// <summary>
|
|
/// Gets the index of the <see cref="Level"/> in the guest address.
|
|
/// </summary>
|
|
public int Index { get; }
|
|
|
|
/// <summary>
|
|
/// Gets the length of the <see cref="AddressTableLevel"/> in the guest address.
|
|
/// </summary>
|
|
public int Length { get; }
|
|
|
|
/// <summary>
|
|
/// Gets the mask which masks the bits used by the <see cref="AddressTableLevel"/>.
|
|
/// </summary>
|
|
public ulong Mask => ((1ul << Length) - 1) << Index;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="AddressTableLevel"/> structure with the specified
|
|
/// <paramref name="index"/> and <paramref name="length"/>.
|
|
/// </summary>
|
|
/// <param name="index">Index of the <see cref="AddressTableLevel"/></param>
|
|
/// <param name="length">Length of the <see cref="AddressTableLevel"/></param>
|
|
public AddressTableLevel(int index, int length)
|
|
{
|
|
(Index, Length) = (index, length);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of the <see cref="AddressTableLevel"/> from the specified guest <paramref name="address"/>.
|
|
/// </summary>
|
|
/// <param name="address">Guest address</param>
|
|
/// <returns>Value of the <see cref="AddressTableLevel"/> from the specified guest <paramref name="address"/></returns>
|
|
public long GetValue(ulong address)
|
|
{
|
|
return (long)((address & Mask) >> Index);
|
|
}
|
|
}
|
|
}
|