/// <summary>
/// Just testing to see how things work.
/// TODO We need a facade to manage the simulation.
/// </summary>
private void btnStart_Click(object sender, EventArgs e)
{
MSstate state = MSstate.Get_MSstate();
#if false
// Show the initial state
tbOut.Text += state.ToString() + Environment.NewLine + Environment.NewLine;
#endif
// Make a few state changes
state.RegisterContent[MSstate.RegSet.MARlo] = 0x11;
state.RegisterContent[MSstate.RegSet.MARhi] = 0x22;
state.RegisterContent[MSstate.RegSet.AClo] = 0x50;
state.RegisterContent[MSstate.RegSet.AChi] = 0x42;
state.RegisterContent[MSstate.RegSet.SPhi] = 0x50;
// Show the results
tbOut.Text += state.ToString() + Environment.NewLine + Environment.NewLine;
// Execute some microcode
MS_ALU alu = MS_ALU.Get_MS_ALU();
alu.PerformOneMicroStatement(new MSmicrocodeStatement("", 13, 9, 0, 0, 0)); // ALUin := SPhi
tbOut.Text += state.ToString() + Environment.NewLine + Environment.NewLine;
alu.PerformOneMicroStatement(new MSmicrocodeStatement("", 5, 2, 0, 0, 0)); // BRhi := AClo
alu.PerformOneMicroStatement(new MSmicrocodeStatement("", 14, 0, 0, 0, 0)); // Inc MAR&PC // TODO not working
alu.PerformOneMicroStatement(new MSmicrocodeStatement("", 8, 9, 7, 0, 0)); // SPlo := SPhi+ALUin 50+50=A0
// Show the results
tbOut.Text += state.ToString() + Environment.NewLine + Environment.NewLine;
}
// Perform initialization
private void Init()
{
bPos = bZero = bNeg = bCarry = bNOT_CDAV = false;
state = MSstate.Get_MSstate();
mseq = MSmicrosequencer.Get_MSmicrosequencer();
ControlTable = new MScontrolTable();
}
private void LoadInitStates()
{
// allocate memory; it is automatically set to zeros
MicroRegisterContent = new byte[iRegCount];
state = MSstate.Get_MSstate();
alu = MS_ALU.Get_MS_ALU();
ControlTable = new MScontrolTable();
}
/// <summary>
/// Gets the only instance of the PO_NameFixer class that may exist. If a single
/// instance of PO_NameFixer has not yet been created, one is created.
///
/// PRE: None.
/// POST: An MSstate (reference) has been returned, or created and returned.
/// </summary>
/// <returns>Returns a reference to the only existing instance of MSstate.</returns>
public static MSstate Get_MSstate()
{
lock (c_stateLock)
{
// if this is the first request, initialize the one instance
if (c_state == null)
{
// create the single object instance
c_state = new MSstate();
c_state.RegisterContent = new Dictionary <RegSet, byte>();
c_state.LoadInitStates();
} // if null
// whether new or old, return a reference to the only instance
return(c_state);
} // lock
}
