public bool GetInstructions(uint aAddress, TArmInstructionSet aInstructionSet, int aCount, out IArmInstruction[] aInstructions)
{
bool valid = false;
aInstructions = new IArmInstruction[0];
// We need the code and the instruction converter
if (IsCodeAvailable && IfaceInstructionConverter != null)
{
// Check range is valid
AddressRange range = new AddressRange(iBaseAddress, 0);
range.UpdateMax(range.Min + iCode.Length);
uint extent = aAddress + ((uint)aCount * (uint)aInstructionSet);
//
valid = range.Contains(aAddress) && range.Contains(extent);
if (valid)
{
List <uint> rawInstructions = new List <uint>();
//
using (SymbianStreamReaderLE reader = SymbianStreamReaderLE.New(new MemoryStream(iCode)))
{
uint address = aAddress - iBaseAddress;
reader.Seek(address);
//
for (int i = 0; i < aCount; i++)
{
uint value = 0;
//
switch (aInstructionSet)
{
case TArmInstructionSet.ETHUMB:
value = reader.ReadUInt16();
break;
case TArmInstructionSet.EARM:
value = reader.ReadUInt32();
break;
default:
case TArmInstructionSet.EJAZELLE:
throw new NotSupportedException("Jazelle is not supported");
}
//
rawInstructions.Add(value);
address += (uint)aInstructionSet;
}
}
//
aInstructions = iInstructionConverter.ConvertRawValuesToInstructions(aInstructionSet, rawInstructions.ToArray(), aAddress);
}
}
// Return empty array if not valid
return(valid);
}
public bool IsInstructionAddressValid(uint aAddress)
{
bool valid = false;
//
if (IsCodeAvailable)
{
AddressRange range = new AddressRange(this.BaseAddress, 0);
range.UpdateMax(range.Min + iCode.Length);
//
valid = range.Contains(aAddress);
}
//
return(valid);
}
