mirror of
https://github.com/aaru-dps/Aaru.Server.git
synced 2025-12-16 19:24:27 +00:00
Added support for T98 hard disk images, thanks to Neko Project
II emulator.
This commit is contained in:
@@ -2,7 +2,7 @@
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Anex86.cs
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// Filename : T98.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Component
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@@ -42,26 +42,11 @@ using DiscImageChef.Decoders.Floppy;
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namespace DiscImageChef.ImagePlugins
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{
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public class Anex86 : ImagePlugin
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public class T98 : ImagePlugin
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{
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#region Internal structures
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct Anex86Header
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public T98()
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{
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public int unknown;
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public int hddtype;
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public int hdrSize;
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public int dskSize;
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public int bps;
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public int spt;
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public int heads;
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public int cylinders;
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}
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#endregion
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public Anex86()
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{
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Name = "Anex86 Disk Image";
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Name = "T98 Hard Disk Image";
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PluginUUID = new Guid("0410003E-6E7B-40E6-9328-BA5651ADF6B7");
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ImageInfo = new ImageInfo()
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{
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@@ -88,36 +73,32 @@ namespace DiscImageChef.ImagePlugins
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};
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}
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Anex86Header fdihdr;
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Filter anexImageFilter;
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Filter t98ImageFilter;
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public override bool IdentifyImage(Filter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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fdihdr = new Anex86Header();
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if(stream.Length < Marshal.SizeOf(fdihdr))
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if(stream.Length % 256 != 0)
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return false;
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byte[] hdr_b = new byte[Marshal.SizeOf(fdihdr)];
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byte[] hdr_b = new byte[256];
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stream.Read(hdr_b, 0, hdr_b.Length);
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GCHandle handle = GCHandle.Alloc(hdr_b, GCHandleType.Pinned);
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fdihdr = (Anex86Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Anex86Header));
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handle.Free();
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for(int i = 4; i < 256; i++)
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{
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if(hdr_b[i] != 0)
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return false;
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}
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.unknown = {0}", fdihdr.unknown);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.hddtype = {0}", fdihdr.hddtype);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.hdrSize = {0}", fdihdr.hdrSize);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.dskSize = {0}", fdihdr.dskSize);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.bps = {0}", fdihdr.bps);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.spt = {0}", fdihdr.spt);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.heads = {0}", fdihdr.heads);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.cylinders = {0}", fdihdr.cylinders);
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int cylinders = BitConverter.ToInt32(hdr_b, 0);
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return stream.Length == fdihdr.hdrSize + fdihdr.dskSize && fdihdr.dskSize == fdihdr.bps * fdihdr.spt * fdihdr.heads * fdihdr.cylinders;
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DicConsole.DebugWriteLine("T98 plugin", "cylinders = {0}", cylinders);
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// This format is expanding, so length can be smaller
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// Just grow it, I won't risk false positives...
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return stream.Length == (cylinders * 8 * 33 * 256) + 256;
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}
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public override bool OpenImage(Filter imageFilter)
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@@ -125,150 +106,34 @@ namespace DiscImageChef.ImagePlugins
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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fdihdr = new Anex86Header();
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if(stream.Length < Marshal.SizeOf(fdihdr))
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if(stream.Length % 256 != 0)
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return false;
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byte[] hdr_b = new byte[Marshal.SizeOf(fdihdr)];
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byte[] hdr_b = new byte[256];
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stream.Read(hdr_b, 0, hdr_b.Length);
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GCHandle handle = GCHandle.Alloc(hdr_b, GCHandleType.Pinned);
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fdihdr = (Anex86Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Anex86Header));
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handle.Free();
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for(int i = 4; i < 256; i++)
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{
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if(hdr_b[i] != 0)
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return false;
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}
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int cylinders = BitConverter.ToInt32(hdr_b, 0);
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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switch(fdihdr.cylinders)
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{
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case 40:
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switch(fdihdr.bps)
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{
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case 512:
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switch(fdihdr.spt)
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{
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case 8:
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if(fdihdr.heads == 1)
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ImageInfo.mediaType = MediaType.DOS_525_SS_DD_8;
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else if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_525_DS_DD_8;
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break;
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case 9:
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if(fdihdr.heads == 1)
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ImageInfo.mediaType = MediaType.DOS_525_SS_DD_9;
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else if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_525_DS_DD_9;
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break;
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}
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break;
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}
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break;
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case 77:
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switch(fdihdr.bps)
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{
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case 128:
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switch(fdihdr.spt)
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{
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case 26:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_8_SD;
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break;
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}
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break;
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case 256:
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switch(fdihdr.spt)
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{
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case 26:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_8_DD;
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break;
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}
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break;
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case 1024:
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switch(fdihdr.spt)
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{
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case 8:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_525_HD;
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break;
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}
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break;
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}
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break;
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case 80:
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switch(fdihdr.bps)
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{
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case 256:
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switch(fdihdr.spt)
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{
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case 16:
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if(fdihdr.heads == 1)
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ImageInfo.mediaType = MediaType.NEC_525_SS;
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else if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_525_DS;
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break;
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}
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break;
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case 512:
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switch(fdihdr.spt)
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{
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case 8:
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if(fdihdr.heads == 1)
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ImageInfo.mediaType = MediaType.DOS_35_SS_DD_8;
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else if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_35_DS_DD_8;
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break;
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case 9:
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if(fdihdr.heads == 1)
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ImageInfo.mediaType = MediaType.DOS_35_SS_DD_9;
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else if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_35_DS_DD_9;
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break;
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case 15:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_35_HD_15;
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break;
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case 18:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_35_HD;
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break;
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case 36:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.DOS_35_ED;
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break;
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}
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break;
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}
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break;
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case 240:
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switch(fdihdr.bps)
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{
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case 512:
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switch(fdihdr.spt)
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{
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case 38:
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if(fdihdr.heads == 2)
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ImageInfo.mediaType = MediaType.NEC_35_TD;
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break;
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}
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break;
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}
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break;
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}
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DicConsole.DebugWriteLine("Anex86 plugin", "MediaType: {0}", ImageInfo.mediaType);
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ImageInfo.imageSize = (ulong)fdihdr.dskSize;
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ImageInfo.imageSize = (ulong)(stream.Length - 256);
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ImageInfo.imageCreationTime = imageFilter.GetCreationTime();
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ImageInfo.imageLastModificationTime = imageFilter.GetLastWriteTime();
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ImageInfo.imageName = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
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ImageInfo.sectors = (ulong)(fdihdr.cylinders * fdihdr.heads * fdihdr.spt);
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ImageInfo.sectors = (ulong)((stream.Length / 256) - 1);
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ImageInfo.xmlMediaType = XmlMediaType.BlockMedia;
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ImageInfo.sectorSize = (uint)fdihdr.bps;
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ImageInfo.cylinders = (uint)fdihdr.cylinders;
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ImageInfo.heads = (uint)fdihdr.heads;
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ImageInfo.sectorsPerTrack = (uint)fdihdr.spt;
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ImageInfo.sectorSize = 256;
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ImageInfo.cylinders = (uint)cylinders;
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ImageInfo.heads = 8;
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ImageInfo.sectorsPerTrack = 33;
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anexImageFilter = imageFilter;
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t98ImageFilter = imageFilter;
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return true;
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}
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@@ -295,7 +160,7 @@ namespace DiscImageChef.ImagePlugins
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public override string GetImageFormat()
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{
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return "Anex86 disk image";
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return "T98 disk image";
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}
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public override string GetImageVersion()
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@@ -358,9 +223,9 @@ namespace DiscImageChef.ImagePlugins
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byte[] buffer = new byte[length * ImageInfo.sectorSize];
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Stream stream = anexImageFilter.GetDataForkStream();
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Stream stream = t98ImageFilter.GetDataForkStream();
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stream.Seek((long)((ulong)fdihdr.hdrSize + sectorAddress * ImageInfo.sectorSize), SeekOrigin.Begin);
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stream.Seek((long)(256 + sectorAddress * ImageInfo.sectorSize), SeekOrigin.Begin);
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stream.Read(buffer, 0, (int)(length * ImageInfo.sectorSize));
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