public virtual double[] Execute(double [] register_values)
{
for (int i = 0; i < mRegisterSet.RegisterCount; ++i)
{
mRegisterSet.FindRegisterByIndex(i).Value = register_values[i % register_values.Length];
}
LGPOperator.OperatorExecutionStatus command = LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION;
LGPInstruction current_effective_instruction = null;
LGPInstruction prev_effective_instruction = null;
foreach (LGPInstruction instruction in mInstructions)
{
if (instruction.IsStructuralIntron)
{
continue;
}
prev_effective_instruction = current_effective_instruction;
current_effective_instruction = instruction;
if (command == LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION)
{
command = current_effective_instruction.Execute();
}
else
{
// CSChen says:
// as suggested in Linear Genetic Programming
// the condictional construct is restricted to single condictional construct
// an example of single conditional construct would be
// line 1: if(register[a])
// line 2: <action1>
// line 3: <action2>
// if register[a]==true, then <action1> and <action2> are executed
// if register[a]==false, then <action1> is skipped and <action2> is executed
// <action1> and <action2> are restricted to effective instruction
if (prev_effective_instruction.IsConditionalConstruct)
{
command = LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION;
}
}
}
double[] outputs = new double[mRegisterSet.RegisterCount];
for (int i = 0; i < outputs.Length; ++i)
{
outputs[i] = mRegisterSet.FindRegisterByIndex(i).Value;
}
return(outputs);
}
protected void ExecuteOnFitnessCase(LGPFitnessCase fitness_case)
{
mPop.InitializeProgramRegisters(this, fitness_case);
LGPOperator.OperatorExecutionStatus command = LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION;
LGPInstruction current_effective_instruction = null;
LGPInstruction prev_effective_instruction = null;
foreach (LGPInstruction instruction in mInstructions)
{
if (instruction.IsStructuralIntron)
{
continue;
}
prev_effective_instruction = current_effective_instruction;
current_effective_instruction = instruction;
if (command == LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION)
{
command = current_effective_instruction.Execute();
fitness_case.ReportProgress(instruction.Operator, instruction.Operand1, instruction.Operand2, instruction.DestinationRegister, RegisterSet);
}
else
{
// CSChen says:
// as suggested in Linear Genetic Programming
// the condictional construct is restricted to single condictional construct
// an example of single conditional construct would be
// line 1: if(register[a])
// line 2: <action1>
// line 3: <action2>
// if register[a]==true, then <action1> and <action2> are executed
// if register[a]==false, then <action1> is skipped and <action2> is executed
// <action1> and <action2> are restricted to effective instruction
if (prev_effective_instruction.IsConditionalConstruct)
{
command = LGPOperator.OperatorExecutionStatus.LGP_EXECUTE_NEXT_INSTRUCTION;
}
}
}
double[] outputs = new double[mRegisterSet.RegisterCount];
for (int i = 0; i < outputs.Length; ++i)
{
outputs[i] = mRegisterSet.FindRegisterByIndex(i).Value;
}
fitness_case.RunLGPProgramCompleted(outputs);
}
