//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="M64.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person 
// obtaining a copy of this software and associated documentation 
// files (the “Software”), to deal in the Software without restriction, 
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, 
// and to permit persons to whom the Software is furnished to do so, 
// subject to the following conditions:
//     
// The above copyright notice and 
// this permission notice shall be included in all copies 
// or substantial portions of the Software.
//     
// THE SOFTWARE IS PROVIDED “AS IS”, 
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
// ARISING FROM, OUT OF OR IN CONNECTION WITH 
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp.HighPerformance
{
    [StructLayout(LayoutKind.Explicit, Pack = 8)]
    public unsafe struct M64 : IRegisterPresentation
    {

        [FieldOffset(0)] private fixed byte buffer[8];
        [FieldOffset(0)] private ulong value;

        public M64()
        {
            Unsafe.SkipInit(out this);
            value = 0;
        }

        public ref T AsRef<T>() where T: unmanaged,INumber<T>
        {
            return ref Unsafe.As<byte, T>(ref buffer[0]);
        }

        public override bool Equals(object obj)
        {
            return obj is M64 m64 && this == m64;
        }

        public override int GetHashCode()
        {
            return value.GetHashCode();
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public ref T Member<T>(int index) where T: unmanaged, INumber<T>
        {
            return ref Unsafe.As<byte, T>(ref buffer[index * sizeof(T)]);
        }

        public static bool operator !=(M64 left, M64 right)
        {
            return !(left == right);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static M64 operator <<(M64 m, int shift)
        {
            return new M64
            {
                value = m.value << shift
            };
        }

        public static bool operator ==(M64 left, M64 right)
        {
            return left.value == right.value;
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static M64 operator >>(M64 m, int shift)
        {
            return new M64
            {
                value = m.value >> shift
            };
        }

    }
}