public override ProcedureBase GetTrampolineDestination(ImageReader rdr, IRewriterHost host)
 {
     var rw = Architecture.CreateRewriter(
         rdr,
         Architecture.CreateProcessorState(),
         Architecture.CreateFrame(), host);
     var rtlc = rw.FirstOrDefault();
     if (rtlc == null || rtlc.Instructions.Count == 0)
         return null;
     var jump = rtlc.Instructions[0] as RtlGoto;
     if (jump == null)
         return null;
     var pc = jump.Target as ProcedureConstant;
     if (pc != null)
         return pc.Procedure;
     var access = jump.Target as MemoryAccess;
     if (access == null)
         return null;
     var addrTarget = access.EffectiveAddress as Address;
     if (addrTarget == null)
     {
         var wAddr = access.EffectiveAddress as Constant;
         if (wAddr == null)
         {
             return null;
         }
         addrTarget = MakeAddressFromConstant(wAddr);
     }
     ProcedureBase proc = host.GetImportedProcedure(addrTarget, rtlc.Address);
     if (proc != null)
         return proc;
     return host.GetInterceptedCall(addrTarget);
 }

 public GlobalDataWorkItem(IScanner scanner, Program program, Address addr, DataType dt) : base(addr)
 {
     this.scanner = scanner;
     this.program = program;
     this.dt = dt;
     this.rdr = program.CreateImageReader(addr);
 }

 public List<ProgramResource> ReadLanguageDirectory(ImageReader rdr, uint resourceType, string resourceId)
 {
     const uint DIR_MASK = 0x80000000;
     var flags = rdr.ReadUInt32();
     var date = rdr.ReadUInt32();
     var version = rdr.ReadUInt32();
     var cNameEntries = rdr.ReadUInt16();
     var cIdEntries = rdr.ReadUInt16();
     var entries = new List<ProgramResource>();
     for (int i = 0; i < cNameEntries; ++i)
     {
         var rvaName = rdr.ReadUInt32();
         var rvaEntry = rdr.ReadUInt32();
         var subRdr = new LeImageReader(imgLoaded, rvaResources + (rvaEntry & ~DIR_MASK));
         if ((rvaEntry & DIR_MASK) != 0)
             throw new BadImageFormatException();
         entries.Add(ReadResourceEntry(subRdr, resourceId, ReadResourceString(rvaName), resourceType));
     }
     for (int i = 0; i < cIdEntries; ++i)
     {
         var id = rdr.ReadUInt32();
         var rvaEntry = rdr.ReadUInt32();
         var subRdr = new LeImageReader(imgLoaded, rvaResources + (rvaEntry & ~DIR_MASK));
         if ((rvaEntry & DIR_MASK) != 0)
             throw new BadImageFormatException();
         entries.Add(ReadResourceEntry(subRdr, resourceId, id.ToString(), resourceType));
     }
     return entries;
 }

        public override void ApplyRelocation(Address baseOfImage, uint page, ImageReader rdr, RelocationDictionary relocations)
		{
			ushort fixup = rdr.ReadLeUInt16();
			Address offset = baseOfImage + page + (fixup & 0x0FFFu);
            var imgR = program.CreateImageReader(offset);
            var imgW = program.CreateImageWriter(offset);
            switch (fixup >> 12)
			{
			case RelocationAbsolute:
				// Used for padding to 4-byte boundary, ignore.
				break;
			case RelocationHighLow:
			{
				uint n = (uint) (imgR.ReadUInt32() + (baseOfImage - program.ImageMap.BaseAddress));
				imgW.WriteUInt32(n);
				relocations.AddPointerReference(offset.ToLinear() - imgW.MemoryArea.BaseAddress.ToLinear(), n);
				break;
			}
            case 0xA:
            break;
			default:
                dcSvc.Warn(
                    dcSvc.CreateAddressNavigator(program, offset),
                    string.Format(
                        "Unsupported i386 PE fixup type: {0:X}",
                        fixup >> 12));
                break;
			}
        }

 public override IEnumerable<RtlInstructionCluster> CreateRewriter(ImageReader rdr, ProcessorState state, Frame frame, IRewriterHost host)
 {
     return new MipsRewriter(
         this,
         new MipsDisassembler(this, rdr, IsVersion6OrLater),
         frame,
         host);
 }

 private void CreateDisassembler16(ImageReader rdr)
 {
     dasm = new X86Disassembler(
         rdr,
         PrimitiveType.Word16,
         PrimitiveType.Word16,
         false);
 }

 public IEnumerable<RtlInstructionCluster> CreateRewriter(ImageReader rdr, ProcessorState state, Frame frame, IRewriterHost host)
 {
     var linAddr = rdr.Address.ToLinear();
     RtlTrace trace;
     if (!rewriters.Traces.TryGetValue(rdr.Address, out trace))
         NUnit.Framework.Assert.Fail(string.Format("Unexpected request for a rewriter at address {0}", rdr.Address));
     return trace;
 }

 public virtual object ReadValue(System.Reflection.FieldInfo f, ImageReader rdr, ReaderContext ctx)
 {
     Func<ImageReader, object> fn;
     if (readers.TryGetValue(f.FieldType, out fn))
     {
         return fn(rdr);
     }
     throw new NotSupportedException(string.Format("Field type {0} not supported.", f.FieldType.FullName));
 }

 public override IEnumerable<MachineInstruction> CreateDisassembler(ImageReader imageReader)
 {
     int i = prog.IndexOfKey(imageReader.Address.ToUInt16());
     if (i < 0)
         yield break;
     for (; i < prog.Count; ++i)
     {
         yield return prog.Values[i];
     }
 }

 public static Elf32_Sym Load(ImageReader rdr)
 {
     var sym = new Elf32_Sym();
     sym.st_name = rdr.ReadUInt32();
     sym.st_value = rdr.ReadUInt32();
     sym.st_size = rdr.ReadUInt32();
     sym.st_info = rdr.ReadByte();
     sym.st_other = rdr.ReadByte();
     sym.st_shndx = rdr.ReadUInt16();
     return sym;
 }

 public static Elf64_Rela Read(ImageReader rdr)
 {
     var o = rdr.ReadUInt64();
     var i = rdr.ReadUInt64();
     var a = rdr.ReadInt64();
     return new Elf64_Rela
     {
         r_offset = o,
         r_info = i,
         r_addend = a
     };
 }

        public void Read(ImageReader rdr)
        {
            foreach (var f in fields)
            {
                var attr = GetFieldAttribute(f);
                uint alignment = (uint) attr.Align;
                rdr.Offset = (rdr.Offset + alignment - 1u) & ~(alignment - 1u);
                Debug.Print("At offset: {0:X8} reading field '{1}.{2}' after alignment of {3}.", rdr.Offset, f.DeclaringType.Name, f.Name, alignment);

                object value = attr.ReadValue(f, rdr, null);
                f.SetValue(structure, value);
            }
        }

 protected Address ReadSegmentedCodeAddress(int byteSize, ImageReader rdr, ProcessorState state)
 {
     if (byteSize == PrimitiveType.Word16.Size)
     {
         return Address.SegPtr(state.GetRegister(Registers.cs).ToUInt16(), rdr.ReadLeUInt16());
     }
     else
     {
         ushort off = rdr.ReadLeUInt16();
         ushort seg = rdr.ReadLeUInt16();
         return Address.SegPtr(seg, off);
     }
 }

 public static Elf64_PHdr Load(ImageReader rdr)
 {
     var hdr = new Elf64_PHdr
     {
         p_type = (ProgramHeaderType)rdr.ReadUInt32(),
         p_flags = rdr.ReadUInt32(),
         p_offset = rdr.ReadUInt64(),
         p_vaddr = rdr.ReadUInt64(),
         p_paddr = rdr.ReadUInt64(),
         p_filesz = rdr.ReadUInt64(),
         p_pmemsz = rdr.ReadUInt64(),
         p_align = rdr.ReadUInt64(),
     };
     return hdr;
 }

 public static Elf64_SHdr Load(ImageReader rdr)
 {
     return new Elf64_SHdr
     {
         sh_name = rdr.ReadUInt32(),
         sh_type = (SectionHeaderType)rdr.ReadUInt32(),
         sh_flags = rdr.ReadUInt64(),
         sh_addr = rdr.ReadUInt64(),        // Address
         sh_offset = rdr.ReadUInt64(),
         sh_size = rdr.ReadUInt64(),
         sh_link = rdr.ReadUInt32(),
         sh_info = rdr.ReadUInt32(),
         sh_addralign = rdr.ReadUInt64(),
         sh_entsize = rdr.ReadUInt64(),
     };
 }

 public override IEnumerable<Address> CreatePointerScanner(ImageMap map, ImageReader rdr, IEnumerable<Address> knownAddresses, PointerScannerFlags flags)
 {
     var knownLinAddresses = knownAddresses.Select(a => a.ToUInt32()).ToHashSet();
     if (flags != PointerScannerFlags.Calls)
         throw new NotImplementedException(string.Format("Haven't implemented support for scanning for {0} yet.", flags));
     while (rdr.IsValid)
     {
         uint linAddrCall =  rdr.Address.ToUInt32();
         var opcode = rdr.ReadLeUInt32();
         if ((opcode & 0x0F000000) == 0x0B000000)         // BL
         {
             int offset = ((int)opcode << 8) >> 6;
             uint target = (uint)(linAddrCall + 8 + offset);
             if (knownLinAddresses.Contains(target))
                 yield return Address.Ptr32(linAddrCall);
         }
     }
 }

 public List<ProgramResource> ReadResourceDirectory(ImageReader rdr)
 {
     const uint DIR_MASK = 0x80000000;
     var flags = rdr.ReadUInt32();
     var date = rdr.ReadUInt32();
     var version = rdr.ReadUInt32();
     var cNameEntries = rdr.ReadUInt16();
     var cIdEntries = rdr.ReadUInt16();
     var entries = new List<ProgramResource>();
     for (int i = 0; i < cNameEntries; ++i)
     {
         var rvaName = rdr.ReadUInt32();
         var rvaEntry = rdr.ReadUInt32();
         var subRdr = new LeImageReader(imgLoaded, rvaResources + (rvaEntry & ~DIR_MASK));
         if ((rvaEntry & DIR_MASK) == 0)
             throw new BadImageFormatException();
         if ((rvaName & DIR_MASK) != 0)
         {
             var e = new ProgramResourceGroup
             {
                 //Name = ReadResourceString(rvaName),
                 Name = ReadResourceUtf16leString(rvaResources + (rvaName & ~DIR_MASK)),
             };
             e.Resources.AddRange(ReadNameDirectory(subRdr, 0));
             entries.Add(e);
         }
     }
     for (int i = 0; i < cIdEntries; ++i)
     {
         var id = rdr.ReadUInt32();
         var rvaEntry = rdr.ReadUInt32();
         var subRdr = new LeImageReader(imgLoaded, rvaResources + (rvaEntry & ~DIR_MASK));
         if ((rvaEntry & DIR_MASK) == 0)
             throw new BadImageFormatException();
         var e = new ProgramResourceGroup
         {
             Name = GenerateResourceName(id),
         };
         e.Resources.AddRange(ReadNameDirectory(subRdr, id));
         entries.Add(e);
     }
     return entries;
 }

        public ushort e_shstrndx;       // section name string table index

        public static Elf32_EHdr Load(ImageReader rdr)
        {
            return new Elf32_EHdr
            {
                e_type = rdr.ReadUInt16(),
                e_machine = rdr.ReadUInt16(),
                e_version = rdr.ReadUInt32(),
                e_entry = rdr.ReadUInt32(),
                e_phoff = rdr.ReadUInt32(),
                e_shoff = rdr.ReadUInt32(),
                e_flags = rdr.ReadUInt32(),
                e_ehsize = rdr.ReadUInt16(),
                e_phentsize = rdr.ReadUInt16(),
                e_phnum = rdr.ReadUInt16(),
                e_shentsize = rdr.ReadUInt16(),
                e_shnum = rdr.ReadUInt16(),
                e_shstrndx = rdr.ReadUInt16(),
            };
        }

        public static object ReadPointer(Type pointerType, int size, ImageReader rdr, ReaderContext ctx)
        {
            Debug.Print("Reading pointer at offset {0}, size {1}", rdr.Offset, size);
            uint newOffset;
            switch (size)
            {
            default:
                throw new InvalidOperationException("Field size must be > 0.");
            case 1: newOffset = rdr.ReadByte(); break;
            case 2: newOffset = rdr.ReadUInt16(); break;
            case 4: newOffset = rdr.ReadUInt32(); break;
            }
            Debug.Print("Structure of type {0} must start at offset {1:X}", pointerType.Name, newOffset);
            rdr = rdr.Clone();
            rdr.Offset = newOffset;

            var dst = Activator.CreateInstance(pointerType);
            var sr = new StructureReader(dst);
            sr.Read(rdr);
            return dst;
        }

 public static Elf32_SHdr Load(ImageReader rdr)
 {
     try
     {
         return new Elf32_SHdr
         {
             sh_name = rdr.ReadUInt32(),
             sh_type = (SectionHeaderType)rdr.ReadUInt32(),
             sh_flags = rdr.ReadUInt32(),
             sh_addr = rdr.ReadUInt32(),        // Address
             sh_offset = rdr.ReadUInt32(),
             sh_size = rdr.ReadUInt32(),
             sh_link = rdr.ReadUInt32(),
             sh_info = rdr.ReadUInt32(),
             sh_addralign = rdr.ReadUInt32(),
             sh_entsize = rdr.ReadUInt32(),
         };
     } catch
     {
         //$TODO: report error?
         return null;
     }
 }