/// <summary>
/// Load the complete assembled program
/// Loads each file section of the program
/// </summary>
/// <param name="ar"></param>
public CodeLabels(ArmAssembly.ArmAssembler ar)
{
_fileSections.Clear();
foreach (ArmAssembly.ArmFileInfo afi in ar.FileInfoTable)
{
_fileSections[afi.FileName] = new CodeFileLabels();
(_fileSections[afi.FileName] as CodeFileLabels).Load(afi);
}//foreach
}
/// <summary>
/// Load a new program into the simulator. This function will compile it, load it and set up the
/// simulator for a run.
/// </summary>
/// <param name="fileNames">list of filenames to load</param>
/// <param name="preferences">ARMSim preferences</param>
/// <returns>true if sucessful</returns>
public bool Load(IList <string> fileNames)
{
this.ValidLoadedProgram = false;
foreach (string str in fileNames)
{
if (str.EndsWith(".o") || str.EndsWith(".O"))
{
OutputConsoleString("Loading object code file {0}\n", str);
}
else if (str.EndsWith(".a") || str.EndsWith(".A"))
{
OutputConsoleString("Searching library archive {0}\n", str);
}
else
{
OutputConsoleString("Loading assembly language file {0}\n", str);
}
}//foreach
mArmAssembler = new ArmAssembly.ArmAssembler(fileNames);
try
{
//perform pass 1 on all the files
mArmAssembler.PerformPass();
//ar.DumpInfo();
if (ArmAssembly.AssemblerErrors.ErrorReports.Count <= 0)
{
// now determine where everything will go in memory
mArmAssembler.PlaceCode((int)this.ARMPreferences.SimulatorPreferences.MemoryStart);
//ar.DumpInfo();
// allocate a block of memory for the assembled
// and linked program
mAssembledProgram = new ArmAssembly.AssembledProgram(mArmAssembler);
// perform pass 2 on all the files
mArmAssembler.PerformPass(mAssembledProgram);
//ar.DumpInfo();
//ap.Hexdump(); // display all code
}
}
catch (Exception ex)
{
OutputConsoleString("A fatal error occurred while assembling the program, Reason:{0}\n", ex.Message);
OutputConsoleString("Please keep a copy of the ARM source code and report this ARMSim bug!\n");
return(false);
}//catch
if (ArmAssembly.AssemblerErrors.ErrorReports.Count > 0)
{
OutputConsoleString("The following assembler/loader errors occurred ...\n");
IDictionary <string, IList <ArmAssembly.ErrorReport> > xxx = ArmAssembly.AssemblerErrors.ErrorReports.ErrorLists;
//display each reported error in the outputview
foreach (string fileName in xxx.Keys)
{
OutputConsoleString("** File: {0}\n", fileName);
IList <ArmAssembly.ErrorReport> ht = ArmAssembly.AssemblerErrors.ErrorReports.GetErrorsList(fileName);
foreach (ArmAssembly.ErrorReport ce in ht)
{
string fmt;
if (ce.Col == 0)
{
if (ce.Line == 0)
{
fmt = " Message = {0}\n";
}
else
{
fmt = " Line {1}: Message = {0}\n";
}
}
else
{
fmt = " Line {1}, col {2}: Message = {0}\n";
}
OutputConsoleString(fmt, ce.ErrorMsg, ce.Line, ce.Col);
}
}
OutputConsoleString("End of assembler errors\n");
//all done for error case
return(false);
}
//Construct the code labels data structure from the assembled program.
mCodeLabels = new CodeLabels(mArmAssembler);
//tell the simulator which directory to try for user files
this.UserDirectory = System.IO.Path.GetDirectoryName(fileNames[0]);
// set the program entry point to be the _start label if it exists;
// otherwise set it to the address of main if it exists;
// otherwise set it to the start of memory
//save the entry point in case the user does a "Restart" but the preferences may have changed - dale
if (!mCodeLabels.LabelToAddress("_start", ref mEntryPoint))
{
if (!mCodeLabels.LabelToAddress("main", ref mEntryPoint))
{
mEntryPoint = (uint)mAssembledProgram.StartAddress;
}
}
//define the simulation memory
//save the stack pointer in case the user does a "Restart" but the preferences may have changed - dale
mStackPointer = this.DefineMemory(this.ARMPreferences.SimulatorPreferences, mAssembledProgram.Memory.Length);
//create the caches based on the user preferences
this.DefineCache(this.ARMPreferences.CachePreferences);
//perform a restart - loads code into memory, zeros cpu registers, sets pc and sp
//note sets the ValidLoadedProgram flag to true
this.Restart();
return(true);
}//Load
