private void addCodeSequence(IList <CodeSequence> codeSequences, CodeSequence codeSequence)
{
if (codeSequence != null)
{
if (codeSequence.Length > 1)
{
codeSequences.Add(codeSequence);
}
}
}
public SequenceCodeInstruction(CodeSequence codeSequence)
{
this.codeSequence = codeSequence;
Address = codeSequence.StartAddress;
CodeInstruction firstInstruction = codeSequence.Instructions[0];
BranchTarget = firstInstruction.BranchTarget;
Branching = firstInstruction.Branching;
BranchingTo = firstInstruction.BranchingTo;
}
private void splitCodeSequences(CompilerContext context, int methodMaxInstructions)
{
IList <CodeSequence> codeSequences = new List <CodeSequence>();
generateCodeSequences(codeSequences, methodMaxInstructions);
codeSequences.Sort();
int currentMethodInstructions = codeInstructions.Count;
IList <CodeSequence> sequencesToBeSplit = new List <CodeSequence>();
foreach (CodeSequence codeSequence in codeSequences)
{
sequencesToBeSplit.Add(codeSequence);
//if (log.DebugEnabled)
{
Console.WriteLine("Sequence to be split: " + codeSequence.ToString());
}
currentMethodInstructions -= codeSequence.Length;
if (currentMethodInstructions <= methodMaxInstructions)
{
break;
}
}
CodeSequence currentCodeSequence = null;
//JAVA TO C# CONVERTER WARNING: Unlike Java's ListIterator, enumerators in .NET do not allow altering the collection:
for (IEnumerator <CodeInstruction> lit = codeInstructions.GetEnumerator(); lit.MoveNext();)
{
CodeInstruction codeInstruction = lit.Current;
CodeSequence codeSequence = findCodeSequence(codeInstruction, sequencesToBeSplit, currentCodeSequence);
if (codeSequence != null)
{
//JAVA TO C# CONVERTER TODO TASK: .NET enumerators are read-only:
lit.remove();
if (codeSequence.Instructions.Count == 0)
{
codeSequence.addInstruction(codeInstruction);
SequenceCodeInstruction sequenceCodeInstruction = new SequenceCodeInstruction(codeSequence);
lit.add(sequenceCodeInstruction);
sequenceCodeInstructions.AddLast(sequenceCodeInstruction);
}
else
{
codeSequence.addInstruction(codeInstruction);
}
currentCodeSequence = codeSequence;
}
}
}
private CodeSequence findCodeSequence(CodeInstruction codeInstruction, IList <CodeSequence> codeSequences, CodeSequence currentCodeSequence)
{
int address = codeInstruction.Address;
if (currentCodeSequence != null)
{
if (currentCodeSequence.isInside(address))
{
return(currentCodeSequence);
}
}
foreach (CodeSequence codeSequence in codeSequences)
{
if (codeSequence.isInside(address))
{
return(codeSequence);
}
}
return(null);
}
private void generateCodeSequences(IList <CodeSequence> codeSequences, int sequenceMaxInstructions)
{
CodeSequence currentCodeSequence = null;
int nextAddress = 0;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'sealed override':
//ORIGINAL LINE: sealed override int sequenceMaxInstructionsWithDelay = sequenceMaxInstructions - 1;
int sequenceMaxInstructionsWithDelay = sequenceMaxInstructions - 1;
foreach (CodeInstruction codeInstruction in codeInstructions)
{
int address = codeInstruction.Address;
if (address < nextAddress)
{
// Skip it
}
else
{
if (codeInstruction.hasFlags(Instruction.FLAG_CANNOT_BE_SPLIT))
{
addCodeSequence(codeSequences, currentCodeSequence);
currentCodeSequence = null;
if (codeInstruction.hasFlags(Instruction.FLAG_HAS_DELAY_SLOT))
{
nextAddress = address + 8;
}
}
else if (codeInstruction.BranchTarget)
{
addCodeSequence(codeSequences, currentCodeSequence);
currentCodeSequence = new CodeSequence(address);
}
else
{
if (currentCodeSequence == null)
{
currentCodeSequence = new CodeSequence(address);
}
else if (currentCodeSequence.Length + codeInstruction.Length > sequenceMaxInstructionsWithDelay)
{
bool doSplit = false;
if (currentCodeSequence.Length + codeInstruction.Length > sequenceMaxInstructions)
{
doSplit = true;
}
else if (codeInstruction.hasFlags(Instruction.FLAG_HAS_DELAY_SLOT))
{
doSplit = true;
}
if (doSplit)
{
addCodeSequence(codeSequences, currentCodeSequence);
currentCodeSequence = new CodeSequence(address);
}
}
currentCodeSequence.EndAddress = codeInstruction.EndAddress;
}
}
}
addCodeSequence(codeSequences, currentCodeSequence);
}
