/// <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;
}
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 MS_ALU Get_MS_ALU()
{
lock (c_aluLock)
{
// if this is the first request, initialize the one instance
if (c_alu == null)
{
c_alu = new MS_ALU();
c_alu.Init();
}
// whether new or old, return a reference to the only instance
return(c_alu);
} // lock
}
public override string ToString()
{
string ret = "";
// ToString("X") alternatively prints the integer address as hexadecimal; this should also print the *contents* at the current MAR address TODO
ret += string.Format("MAR: {0,2} {1,2:}", RegisterContent[RegSet.MARhi].ToString("X"), RegisterContent[RegSet.MARlo].ToString("X"));
ret += System.Environment.NewLine;
// Print the remaining register contents
foreach (RegSet rs in aRegisters)
{
ret += string.Format("{0}:{1,2} ", rs.ToString(), RegisterContent[rs].ToString("X"));
}
// Add the state of the microsequencer
ret += System.Environment.NewLine;
ret += MSmicrosequencer.Get_MSmicrosequencer().ToString();
// Add the status word from the ALU
ret += MS_ALU.Get_MS_ALU().ToString();
ret += System.Environment.NewLine;
return(ret);
}
