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https://github.com/aaru-dps/imhex-patterns.git
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109 lines
3.3 KiB
Plaintext
109 lines
3.3 KiB
Plaintext
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : D88.hexpat
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : ImHex pattern for parsing D88 disk images.
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// Version : 1.00
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Parses D88 disk images.
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//
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// --[ History ] --------------------------------------------------------------
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//
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// 1.00: Initial release.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. 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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// TODO: Parse tracks and sectors. Missing how to do array of pointers
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#pragma author Nat Portillo <claunia@claunia.com>
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#pragma description D88 disk image parser (*.D88)
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#pragma endian little
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enum ibm_sector_size_t : u8
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{
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_128b = 0,
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_256b = 1,
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_512b = 2,
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_1k = 3,
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_2k = 4,
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_4k = 5,
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_8k = 6,
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_16k = 7
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};
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enum disk_type_t : u8
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{
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D2 = 0x00,
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DD2 = 0x10,
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HD2 = 0x20
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};
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enum density_type_t : u8
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{
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MFM = 0x00,
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FM = 0x40
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};
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struct d88_sector_t
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{
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// Cylinder ID の C
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u8 c;
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// Head ID の H
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u8 h;
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// Sector number ID の R
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u8 r;
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// Sector size ID の N
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ibm_sector_size_t n;
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// Number of sectors in this track このトラック内に存在するセクタの数
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s16 spt;
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// Density: 0x00 MFM, 0x40 FM 記録密度： 0x00 倍密度、0x40 単密度
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density_type_t density;
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// Deleted sector, 0x00 not deleted, 0x10 deleted DELETED MARK： 0x00 ノーマル、 0x10 DELETED
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u8 deleted_mark;
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// Sector status ステータス
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u8 status;
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// Reserved リザーブ
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padding[5];
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// Size of data following this field このセクタ部のデータサイズ
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s16 size_of_data;
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};
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struct d88_header_t
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{
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// Disk name, nul-terminated ASCII ディスクの名前(ASCII + '\0')
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char name[17];
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// Reserved ディスクの名前(ASCII + '\0')
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padding[9];
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// Write protect status ライトプロテクト： 0x00 なし、0x10 あり
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u8 write_protect;
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// Disk type ディスクの種類： 0x00 2D、 0x10 2DD、 0x20 2HD
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disk_type_t disk_type;
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// Disk image size ディスクのサイズ
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s32 disk_size;
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// Track pointers トラック部のオフセットテーブル 0 Track ～ 163 Track
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s32 track_table[164];
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};
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d88_header_t header @ 0x00; |