/// <summary>
/// converts an instruction from a string to an enum
/// </summary>
/// <param name="instruction">the instruction e.g. "acc", "jmp", etc</param>
/// <returns>the converted instruction or InstrcutionType.UnknownInstruction</returns>
private InstrcutionType getInstructionType(string instruction)
{
// the type of instruction we will return from this function
// defaulted to unknown instrcution in case the instruction can not
// be found
InstrcutionType theInstuctionType = InstrcutionType.UnknownInstruction;
// find which instruction we have been given
// and return its enum equiverlent
switch (instruction)
{
case "acc":
theInstuctionType = InstrcutionType.Accumulator;
break;
case "jmp":
theInstuctionType = InstrcutionType.Jump;
break;
case "nop":
theInstuctionType = InstrcutionType.NoOPeration;
break;
default:
theInstuctionType = InstrcutionType.UnknownInstruction;
break;
}
// return the instruction we found
// or UnknownInstruction
return(theInstuctionType);
}
/// <summary>
/// Takes in a line of text and and populates this classes properties
/// with the data it find
/// </summary>
/// <param name="instructionText">Line of text containing an instruction</param>
public void parseInstructionText(string instructionText)
{
// splint the instruction at the space and return an array of 2
string[] instrionArray = instructionText.Split(" ", StringSplitOptions.RemoveEmptyEntries);
// find the instruction type, e.g. Accumulator, jump, etc
this.instructionType = this.getInstructionType(instrionArray[0]);
// find the value assoshiated with this instruction
int theValue = 0;
if (int.TryParse(instrionArray[1], out theValue) == true)
{
this.argument = theValue;
}
}