37 lines
887 B
C#
37 lines
887 B
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: AcpiChecksum.cs
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//
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// Note:
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// Based on ACPI 3.0 Spec.
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namespace Microsoft.Singularity.Hal.Acpi
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{
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using System;
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using Microsoft.Singularity.Io;
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internal class AcpiChecksum
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{
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public static byte Compute(IoMemory region)
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{
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return Compute(region, 0, (uint) region.Length);
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}
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public static byte Compute(IoMemory region, uint offset, uint length)
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{
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byte sum = 0;
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uint stop = offset + length;
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for (uint i = offset; i < stop; i++)
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{
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sum += region.Read8((int) i);
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}
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return sum;
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}
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}
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}
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