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93 lines
4.0 KiB
C#
93 lines
4.0 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Structs.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains structures for Quasi88 disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System.Runtime.InteropServices;
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using Aaru.Decoders.Floppy;
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namespace Aaru.Images;
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public sealed partial class D88
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{
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#region Nested type: Header
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct Header
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{
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/// <summary>Disk name, nul-terminated ASCII ディスクの名前(ASCII + '\0')</summary>
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 17)]
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public readonly byte[] name;
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/// <summary>Reserved ディスクの名前(ASCII + '\0')</summary>
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 9)]
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public readonly byte[] reserved;
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/// <summary>Write protect status ライトプロテクト： 0x00 なし、0x10 あり</summary>
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public readonly byte write_protect;
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/// <summary>Disk type ディスクの種類： 0x00 2D、 0x10 2DD、 0x20 2HD</summary>
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public readonly DiskType disk_type;
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/// <summary>Disk image size ディスクのサイズ</summary>
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public readonly int disk_size;
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/// <summary>Track pointers トラック部のオフセットテーブル 0 Track ～ 163 Track</summary>
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 164)]
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public readonly int[] track_table;
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}
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#endregion
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#region Nested type: SectorHeader
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct SectorHeader
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{
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/// <summary>Cylinder ID の C</summary>
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public readonly byte c;
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/// <summary>Head ID の H</summary>
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public readonly byte h;
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/// <summary>Sector number ID の R</summary>
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public readonly byte r;
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/// <summary>Sector size ID の N</summary>
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public readonly IBMSectorSizeCode n;
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/// <summary>Number of sectors in this track このトラック内に存在するセクタの数</summary>
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public readonly short spt;
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/// <summary>Density: 0x00 MFM, 0x40 FM 記録密度： 0x00 倍密度、0x40 単密度</summary>
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public readonly DensityType density;
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/// <summary>Deleted sector, 0x00 not deleted, 0x10 deleted DELETED MARK： 0x00 ノーマル、 0x10 DELETED</summary>
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public readonly byte deleted_mark;
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/// <summary>Sector status ステータス</summary>
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public readonly byte status;
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/// <summary>Reserved リザーブ</summary>
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)]
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public readonly byte[] reserved;
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/// <summary>Size of data following this field このセクタ部のデータサイズ</summary>
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public readonly short size_of_data;
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}
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#endregion
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} |