76 lines
1.9 KiB
C#
76 lines
1.9 KiB
C#
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////////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: PhysicalAddress.cs - Abstraction for a processor's physical address
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//
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// Note:
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//
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using System.Runtime.CompilerServices;
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using System;
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namespace Microsoft.Singularity.Memory
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{
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[NoCCtor]
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[CLSCompliant(false)]
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public struct PhysicalAddress
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{
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// This is a processor detail. 52 is for x86-derived
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// architectures with Physical Address Extensions enabled.
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private const uint HARDWARE_ADDR_BITS = 52;
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// "640KB is enough for anybody"
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private ulong addr;
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public PhysicalAddress(ulong pAddr)
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{
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addr = pAddr;
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}
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[AccessedByRuntime("referenced from halkd.cpp")]
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public PhysicalAddress(UIntPtr pAddr)
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{
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addr = (ulong)pAddr;
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}
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public static PhysicalAddress Null {
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get {
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return new PhysicalAddress(0);
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}
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}
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public ulong Value {
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get {
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return addr;
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}
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}
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public static bool operator== (PhysicalAddress adr1, PhysicalAddress adr2)
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{
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return adr1.Value == adr2.Value;
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}
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public static bool operator!= (PhysicalAddress adr1, PhysicalAddress adr2)
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{
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return !(adr1 == adr2);
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}
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public override bool Equals(Object o)
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{
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if (o is PhysicalAddress) {
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return this == (PhysicalAddress)o;
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} else {
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return false;
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}
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}
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public override int GetHashCode()
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{
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unchecked{ return (int)addr; }
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}
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}
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}
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