//Method: Execute
//Purpose: executes specific instruction
public void Execute()
{
curInstruction.execute();
disassembly = Instructions.disassembly;
myRegisters.IncrCounter();
// Thread.Sleep(250);
}
//Method: Run
//Purpose: Runs through entire simulated program using CPU fetch-decode-execute.
public void Run()
{
uint curCommand = myCPU.Fetch();
while (curCommand != 0 && !abort)
{
storedBranchPC = 0;
stepNum++;
//used for debugging stuffs
//check stepnum OR pc counter
/* if (stepNum == 2396)
* {
* string x;
* }*/
if (myCPU.Decode(curCommand))
{
if (Instructions.dontDoItBro == false)
{
myCPU.Execute();
//check to see if we wrote word to 100000
if (myRam.output)
{
//prompt user for input
//call event handler to update screen
if (outputQ.Count == 0)
{
output = '0';
}
else
{
output = outputQ.Dequeue();
}
myRam.output = false;
putChar(this, e);
}
}
else
{
myRegisters.IncrCounter();
}
curCommand = myCPU.Fetch();
if (trace)
{
if (storedBranchPC == 0)
{
WriteTrace((int)myRegisters.ReadWord(15) - 12);
}
else
{
WriteTrace(storedBranchPC);
}
}
}
else
{
if (trace)
{
WriteTrace((int)myRegisters.ReadWord(15) - 8);
}
curCommand = 0;
}
}
endRun(this, e);
}
