internal ETMInstruction FetchInstruction(uint aAddress)
{
ETMInstruction ret = new ETMInstruction(aAddress);
//
bool gotCode = false;
if (this.LastBranch.IsKnown && Engine.DebugEngineView != null)
{
DbgViewCode codeView = Engine.DebugEngineView.Code;
// In the case where we've been asked to fetch the code from the exception
// vector, then bypass the rom/rofs code entirely.
bool isExceptionVector = Config.IsExceptionVector(aAddress);
if (isExceptionVector)
{
System.Diagnostics.Debug.Assert(this.CurrentInstructionSet == TArmInstructionSet.EARM);
TArmExceptionVector vector = Config.MapToExceptionVector(aAddress);
uint rawInstruction = Config.GetExceptionVector(vector);
ret.Instruction = codeView.ConvertToInstruction(aAddress, TArmInstructionSet.EARM, rawInstruction);
}
else
{
IArmInstruction[] instructions = null;
gotCode = codeView.GetInstructions(aAddress, CurrentInstructionSet, 1, out instructions);
//
if (gotCode)
{
System.Diagnostics.Debug.Assert(instructions != null && instructions.Length == 1);
ret.Instruction = instructions[0];
}
}
}
//
return(ret);
}
public ArmCodeHelper(DbgViewCode aDebugViewCode, ITracer aTracer)
{
iCodeView = aDebugViewCode;
iTracer = aTracer;
}