public void RemoveSourceEntry(SourceEntry entry)
{
// Remove from address table
for (int i = 0; i < _orderedSourceEntries.Count; i++)
{
if (_orderedSourceEntries[i].Address == entry.Address)
{
_orderedSourceEntries.RemoveAt(i);
break;
}
}
// Remove from source table if present
if (_sourceFileToSourceEntryMap.ContainsKey(entry.SourcePath))
{
for (int i = 0; i < _sourceFileToSourceEntryMap[entry.SourcePath].Count; i++)
{
if (_sourceFileToSourceEntryMap[entry.SourcePath][i].Address == entry.Address)
{
_sourceFileToSourceEntryMap[entry.SourcePath].RemoveAt(i);
break;
}
}
}
}
private void InsertAddressEntry(SourceEntry entry)
{
if (_orderedSourceEntries.Count == 0)
{
_orderedSourceEntries.Add(entry);
return;
}
// Find the first entry that has an address greater than the new entry's.
//
for (int i = 0; i < _orderedSourceEntries.Count; i++)
{
// Sanity check -- if these entries have equal addresses then we need to stop here.
if (_orderedSourceEntries[i].Address == entry.Address)
{
throw new InvalidOperationException(
String.Format("Duplicate address {0:x4} in source map.", entry.Address));
}
if (_orderedSourceEntries[i].Address > entry.Address)
{
_orderedSourceEntries.Insert(i, entry);
return;
}
}
//
// If we get here, then this address is greater than any already in the list, so we add it at the end.
//
_orderedSourceEntries.Add(entry);
}
/// <summary>
/// Loads the appropriate source file, brings the specified line into view
/// and highlights the specified line.
/// </summary>
/// <param name="entry"></param>
public void SelectSourceEntry(SourceEntry entry, bool readOnly, bool iop)
{
LoadSourceFile(entry.SourcePath);
SelectLine(entry.LineNumber);
this.ReadOnly = readOnly;
_iopCode = iop;
}
public void DisplayCurrentCode()
{
RefreshSourceMaps();
//
// Select active files in the source file list
//
SourceFiles.ClearSelected();
foreach (SourceMap s in _sourceMaps)
{
foreach (string fileName in s.GetSourceFiles())
{
for (int i = 0; i < SourceFiles.Items.Count; i++)
{
if (fileName == (string)SourceFiles.Items[i])
{
SourceFiles.SetSelected(i, true);
}
}
}
}
//
// Find the source line that matches the current TPC, if any.
//
int tpc = _system.CP.TPC[(int)_system.CP.CurrentTask];
foreach (SourceMap s in _sourceMaps)
{
SourceEntry entry = s.GetExactSourceForAddress((ushort)tpc);
if (entry != null)
{
// WE GOT ONE!!!
SourceDisplay.AttachMap(s);
SourceDisplay.SelectSourceEntry(entry, false, false /* cp */);
// Select the source file in the source list
for (int i = 0; i < SourceFiles.Items.Count; i++)
{
if (entry.SourcePath == (string)SourceFiles.Items[i])
{
SourceFiles.SetSelected(i, true);
}
}
break;
}
}
//
// Highlight the line in the disassembly as well.
//
Disassembly.SelectAddress(tpc);
}
private void InsertSourceEntry(SourceEntry entry)
{
if (!_sourceFileToSourceEntryMap.ContainsKey(entry.SourcePath))
{
List <SourceEntry> newList = new List <SourceEntry>();
newList.Add(entry);
_sourceFileToSourceEntryMap.Add(entry.SourcePath, newList);
}
else
{
_sourceFileToSourceEntryMap[entry.SourcePath].Add(entry);
}
}
public SourceEntry GetSymbolForAddress(int address)
{
RefreshSourceMaps();
SourceEntry entry = null;
foreach (SourceMap s in _sourceMaps)
{
entry = s.GetSourceForAddress((ushort)address);
if (entry != null)
{
break;
}
}
return(entry);
}
public SourceEntry GetSourceForAddress(ushort address)
{
SourceEntry result = null;
//
// Find the SourceEntry nearest this address, if there is one.
//
foreach (SourceEntry entry in _orderedSourceEntries)
{
if (entry.Address > address)
{
break;
}
result = entry;
}
return(result);
}
private void OnDisassemblySelectionChanged(object sender, EventArgs e)
{
//
// Sync the source display with the selected disassembly address, if possible.
//
int address = Disassembly.SelectedAddress;
//
// TODO: we should search through all source maps, not just the current one.
//
if (SourceDisplay.SourceMap != null && address != -1 && SourceDisplay.SelectedAddress != address)
{
SourceEntry entry = SourceDisplay.SourceMap.GetSourceForAddress((ushort)address);
if (entry != null && !string.IsNullOrWhiteSpace(entry.SourcePath))
{
SourceDisplay.SelectSourceEntry(entry, false, false /* cp */);
}
}
}
private void PrintIOPStatus()
{
WriteLine(String.Format("IOP PC=${0:x4} SP=${1:x4} AF=${2:x4} BC=${3:x4} DE=${4:x4} HL=${5:x4}",
_system.IOP.CPU.PC, _system.IOP.CPU.SP, _system.IOP.CPU.AF, _system.IOP.CPU.BC, _system.IOP.CPU.DE, _system.IOP.CPU.HL));
WriteLine(String.Format("Flags {0}", GetStringForFlags(_system.IOP.CPU.F)));
SourceEntry entry = _iopDebugger.SourceMap.GetSourceForAddress(_system.IOP.CPU.PC);
string symbolName = null;
string currentSymbol = String.Empty;
if (entry != null)
{
if (entry.SymbolNames.Length == 0 ||
entry.SymbolNames[0] == "*none*" || // TODO: move to constant
entry.Address != _system.IOP.CPU.PC)
{
// No symbol name associated with this entry, find the nearest.
SourceEntry symbolEntry = _iopDebugger.SourceMap.GetNearestSymbolForAddress(_system.IOP.CPU.PC);
if (symbolEntry != null)
{
symbolName = String.Format("{0}+${1:x}", symbolEntry.SymbolNames[0], _system.IOP.CPU.PC - symbolEntry.Address);
}
}
else
{
symbolName = entry.SymbolNames[0];
}
if (symbolName != null)
{
currentSymbol = String.Format("{0},{1} line {2}", symbolName, entry.SourcePath, entry.LineNumber);
}
}
WriteLine(String.Format("${0:x4} ({1})\r\n {2}", _system.IOP.CPU.PC, currentSymbol, _system.IOP.CPU.Disassemble(_system.IOP.CPU.PC)));
// Update the IOP debugger's title bar with current MP value
_iopDebugger.Text = String.Format("IOP Debugger - MP {0}", _system.IOP.MiscIO.MPanelBlank ? "<blank>" : _system.IOP.MiscIO.MPanelValue.ToString());
}
public SourceEntry GetNearestSymbolForAddress(ushort address)
{
SourceEntry result = null;
//
// Find the SourceEntry nearest this address that has a symbol name defined, if there is one.
//
foreach (SourceEntry entry in _orderedSourceEntries)
{
if (entry.Address > address)
{
break;
}
if (entry.SymbolNames.Length > 0 &&
entry.SymbolNames[0] != "*none*") // TODO: move to constant
{
result = entry;
}
}
return(result);
}
public void DisplayCurrentCode()
{
SourceEntry entry = _sourceMap.GetSourceForAddress(_system.IOP.CPU.PC);
if (entry != null && !string.IsNullOrWhiteSpace(entry.SourcePath))
{
SourceDisplay.SelectSourceEntry(entry, false, true /* iop */);
// Find the source entry in the file list and select it.
for (int i = 0; i < SourceFiles.Items.Count; i++)
{
if ((string)SourceFiles.Items[i] == entry.SourcePath)
{
SourceFiles.SelectedIndex = i;
break;
}
}
}
else
{
// Should show disassembly instead
}
}
public bool GetAddressForSource(SourceEntry entry, out ushort address)
{
bool found = false;
address = 0;
//
// Find the source line entry that matches.
//
if (_sourceFileToSourceEntryMap.ContainsKey(entry.SourcePath))
{
foreach (SourceEntry line in _sourceFileToSourceEntryMap[entry.SourcePath])
{
if (line.LineNumber == entry.LineNumber)
{
found = true;
address = line.Address;
break;
}
}
}
return(found);
}
private void PrintCPStatus()
{
int tpc = _system.CP.TPC[(int)_system.CP.CurrentTask];
SourceEntry symbolEntry = _cpDebugger.GetSymbolForAddress(tpc);
string currentSymbol = String.Empty;
if (symbolEntry != null)
{
string symbolName = symbolEntry.SymbolNames.Length > 0 &&
symbolEntry.SymbolNames[0] != "*none*" ? symbolEntry.SymbolNames[0] : String.Empty;
currentSymbol = String.Format("{0},{1} line {2}", symbolName, symbolEntry.SourcePath, symbolEntry.LineNumber);
}
WriteLine(String.Format("CP Task={0} TPC={1:x3} {2}",
_system.CP.CurrentTask,
tpc,
currentSymbol));
StringBuilder regString = new StringBuilder();
for (int i = 0; i < 16; i++)
{
regString.AppendFormat(" R{0:x}=0x{1:x4} ", i, _system.CP.ALU.R[i]);
if (((i + 1) % 8) == 0)
{
WriteLine(regString.ToString());
regString.Clear();
}
}
StringBuilder reghString = new StringBuilder();
for (int i = 0; i < 16; i++)
{
reghString.AppendFormat(" RH{0:x}=0x{1:x2} ", i, _system.CP.RH[i]);
if (((i + 1) % 8) == 0)
{
WriteLine(reghString.ToString());
reghString.Clear();
}
}
WriteLine(reghString.ToString());
StringBuilder stackString = new StringBuilder();
// By convention, R0 is TOS in Mesa.
stackString.AppendFormat("0x{0:x4} ", _system.CP.ALU.R[0]);
for (int i = _system.CP.StackP; i > 0; i--)
{
stackString.AppendFormat("{0:x4} ", _system.CP.U[i]);
}
WriteLine(String.Format(" stackP=0x{0:x1} stack: {1}", _system.CP.StackP, stackString));
WriteLine(String.Format(
" Q=0x{0:x4} MAR=0x{1:x5} MD=0x{2:x4} pc16={3} ibPtr={4} ibFront=0x{5:x2} ib[0]=0x{6:x2} ib[1]=0x{7:x2}",
_system.CP.ALU.Q,
_system.MemoryController.MAR,
_system.MemoryController.MD,
_system.CP.PC16 ? 1 : 0,
_system.CP.IBPtr,
_system.CP.IBFront,
_system.CP.IB[0],
_system.CP.IB[1]));
WriteLine(String.Format(" Z={0} N={1} Nb={2} Pg={3} C={4} O={5}",
_system.CP.ALU.Zero,
_system.CP.ALU.Neg,
_system.CP.ALU.NibCarry,
_system.CP.ALU.PgCarry,
_system.CP.ALU.CarryOut,
_system.CP.ALU.Overflow));
Microinstruction inst = new Microinstruction(_system.CP.MicrocodeRam[tpc]);
int nia = inst.INIA | _system.CP.NIAModifier;
WriteLine(String.Format("{0:x3} {1:x12} - {2} (NIA={3:x3}) [c{4}]",
tpc,
_system.CP.MicrocodeRam[tpc],
inst.Disassemble(_system.CP.Cycle),
nia,
_system.CP.Cycle));
}
private void ReadMap(string mapFile, string sourceRoot)
{
//
// If the file does not exist, we will just start with an empty map.
//
if (!File.Exists(mapFile))
{
return;
}
using (StreamReader map = new StreamReader(mapFile))
{
string sourceFile = string.Empty;
ReadState state = ReadState.NextFileHeader;
int mapLineNumber = 0;
while (!map.EndOfStream)
{
string line = map.ReadLine().Trim();
mapLineNumber++;
if (string.IsNullOrWhiteSpace(line) ||
line.StartsWith("#"))
{
// Nothing of note here, continue.
continue;
}
if (line.StartsWith("["))
{
// Looks like the start of a file header.
state = ReadState.NextFileHeader;
}
switch (state)
{
case ReadState.NextFileHeader:
// We expect the line to be in the form "[<source path>]"
// If this is not the case, then the map file is incorrectly formed.
if (line.StartsWith("["))
{
int closingBracket = line.LastIndexOf(']');
if (closingBracket < 0)
{
throw new InvalidOperationException(
String.Format("Badly formed source file entry on line {0}", mapLineNumber));
}
sourceFile = line.Substring(1, closingBracket - 1).Trim();
state = ReadState.NextSymbolEntry;
}
else
{
throw new InvalidOperationException(
String.Format("Expected file header on line {0}", mapLineNumber));
}
break;
case ReadState.NextSymbolEntry:
//
// This is expected to be a symbol map entry, which looks like
// <symbol name 1>, .. , <symbol name N> : <address or value (hex)>,<line number(decimal) in current source file>
//
string[] symbolAddressTokens = line.Split(':');
if (symbolAddressTokens.Length != 2)
{
// Should be two tokens here, one on each side of the ':'
throw new InvalidOperationException(
String.Format("Badly formed symbol entry on line {0}", mapLineNumber));
}
// Grab the symbol names. There must be at least one present since the above split succeeded.
string[] symbolNames = symbolAddressTokens[0].Trim().Split(',');
// Grab the source information. There must be exactly two entries.
string[] sourceData = symbolAddressTokens[1].Trim().Split(',');
if (sourceData.Length != 2)
{
throw new InvalidOperationException(
String.Format("Badly formed symbol entry on line {0} -- source information is invalid.", mapLineNumber));
}
// Convert source info into integers and build a new SourceEntry.
int lineNumber = 0;
ushort address = 0;
try
{
address = (ushort)Convert.ToInt32(sourceData[0].Trim(), 16);
lineNumber = int.Parse(sourceData[1].Trim()) - 1; // line numbers are 1-indexed
}
catch (Exception)
{
throw new InvalidOperationException(
String.Format("Badly formed symbol entry on line {0} -- source information is invalid.", mapLineNumber));
}
SourceEntry newEntry = new SourceEntry(sourceFile, symbolNames, address, lineNumber);
AddSourceEntry(newEntry);
break;
}
}
}
}
public void AddSourceEntry(SourceEntry entry)
{
// InsertAddressEntry will ensure that no duplicate addresses are added.
InsertAddressEntry(entry);
InsertSourceEntry(entry);
}