/// <summary>
/// Returns the selected FROM Register as a string
/// </summary>
/// <param name="entry">The micro instruction</param>
/// <param name="sel">The current selected general purpouse register</param>
/// <returns>The selected FROM Regsiter as a string</returns>
public static string GetFromReg(MPMEntry entry, byte sel)
{
if (SRCRegister.FROM_SEL_REF.Equals(entry.Src))
{
return(GetSelReg(sel));
}
if (SRCRegister.FROM_IP.Equals(entry.Src))
{
return("IP");
}
if (SRCRegister.FROM_MBR.Equals(entry.Src))
{
return("MBR");
}
if (SRCRegister.FROM_MAR.Equals(entry.Src))
{
return("MAR");
}
if (SRCRegister.FROM_MDR.Equals(entry.Src))
{
return("MDR");
}
if (SRCRegister.FROM_RES.Equals(entry.Src))
{
return("RES");
}
if (SRCRegister.FROM_SR.Equals(entry.Src))
{
return("SR");
}
if (SRCRegister.FROM_DATA.Equals(entry.Src))
{
return("DATA");
}
return(String.Empty);
}
/// <summary>
/// Returns the type of the next MIP as a string
/// </summary>
/// <param name="mpmEntry">MPM Entry</param>
/// <param name="IsJump">Delegate function which checks if there is a jump</param>
/// <param name="IsJumpSuccessful">Delegate function which checks if the jump was successful</param>
/// <param name="IsInterrupt">Delegate function which checks if there's an interrupt pending</param>
/// <returns>Type of the next MIP as a string</returns>
public static string GetMIP(MPMEntry mpmEntry, IsJumpDelegate IsJump, IsJumpSuccessfulDelegate IsJumpSuccessful, IsInterruptDelegate IsInterrupt)
{
switch (mpmEntry.Na)
{
case MPMEntry.NA.NEXT: // Next Branch Address
if (IsJump(mpmEntry.Crit))
{
if (IsJumpSuccessful(mpmEntry.Crit))
{
return("JUMP");
}
else
{
return("NOJMP");
}
}
else
{
return("NEXT");
}
case MPMEntry.NA.DECODE: // Decoder Address
return("DEC");
case MPMEntry.NA.FETCH: // Fetch Address
if (IsInterrupt())
{
return("INT");
}
else
{
return("FETCH");
}
}
return("");
}
public MPMEntryViewModel(MPMEntry model) : base()
{
this.Model = model;
}
/// <summary>
/// Returns the selected TO Register as a string
/// </summary>
/// <param name="entry">The micro instruction entry</param>
/// <param name="sel">The current selected general purpouse register</param>
/// <returns>The selected TO Regsiter as a string</returns>
public static string GetToReg(MPMEntry entry, byte sel)
{
if (DESTRegister.EMPTY.Equals(entry.Dst))
{
return(String.Empty);
}
if (DESTRegister.TO_SEL.Equals(entry.Dst))
{
return("SEL");
}
if (DESTRegister.TO_SEL_REF.Equals(entry.Dst))
{
return(GetSelReg(sel));
}
if (DESTRegister.TO_IP.Equals(entry.Dst))
{
return("IP");
}
if (DESTRegister.TO_MBR.Equals(entry.Dst))
{
return("MBR");
}
if (DESTRegister.TO_MAR.Equals(entry.Dst))
{
return("MAR");
}
if (DESTRegister.TO_MDR.Equals(entry.Dst))
{
return("MDR");
}
if (DESTRegister.TO_RES.Equals(entry.Dst))
{
return("RES");
}
if (DESTRegister.TO_SR.Equals(entry.Dst))
{
return("SR");
}
if (DESTRegister.TO_IR.Equals(entry.Dst))
{
return("IR");
}
if (DESTRegister.TO_X.Equals(entry.Dst))
{
return("ALU_X");
}
if (DESTRegister.TO_Y.Equals(entry.Dst))
{
return("ALU_Y");
}
return(String.Empty);
}
public static string GetRw(MPMEntry entry)
{
return(entry.Rw ? "R" : "W");
}
public static string GetCif(MPMEntry entry)
{
return(entry.Cif.ToString());
}
public static string GetEnableValue(MPMEntry entry)
{
return(entry.Ev.ToString());
}
public static string GetAffectedFlag(MPMEntry entry)
{
return(entry.Af.ToString());
}
public static string GetAluCommand(MPMEntry entry)
{
return(Enum.GetName(typeof(Alu.Cmd), entry.Alu));
}
