EightBitNet/Z80/RefreshRegister.cs

49 lines
1.7 KiB
C#

// <copyright file="RefreshRegister.cs" company="Adrian Conlon">
// Copyright (c) Adrian Conlon. All rights reserved.
// </copyright>
namespace EightBit
{
public struct RefreshRegister(byte value) : System.IEquatable<RefreshRegister>
{
private readonly byte high = (byte)(value & (byte)Bits.Bit7);
private byte variable = (byte)(value & (byte)Mask.Seven);
public static implicit operator byte(RefreshRegister input) => ToByte(input);
public static implicit operator RefreshRegister(byte input) => FromByte(input);
public static RefreshRegister operator ++(RefreshRegister value) => Increment(value);
public static bool operator ==(RefreshRegister left, RefreshRegister right) => left.Equals(right);
public static bool operator !=(RefreshRegister left, RefreshRegister right) => !(left == right);
public static byte ToByte(RefreshRegister input) => (byte)(input.high | (input.variable & (byte)Mask.Seven));
public static RefreshRegister Increment(RefreshRegister value)
{
++value.variable;
return value;
}
public static RefreshRegister FromByte(byte input) => new(input);
public readonly byte ToByte() => ToByte(this);
public override readonly bool Equals(object? obj)
{
if (obj is null)
{
return false;
}
return this.Equals((RefreshRegister)obj);
}
public readonly bool Equals(RefreshRegister other) => other.high == this.high && other.variable == this.variable;
public override readonly int GetHashCode() => this.high + this.variable;
}
}