public ScriptMyLabel DefineLabel(ScriptMyLabel myLabel)
{
objFileWriter.Write((byte)ScriptObjWriterCode.DclLabel);
objFileWriter.Write(myLabel.number);
objFileWriter.Write(myLabel.name);
return(myLabel);
}
/**
* @brief Define a label for use by the function
*/
public ScriptMyLabel DefineLabel(string name)
{
ScriptMyLabel myLabel = new ScriptMyLabel();
myLabel.name = name;
myLabel.number = labelNumber++;
return(DefineLabel(myLabel));
}
public override void CodeGen(ScriptCodeGen scg, Token errorAt, CompValuTemp result, CompValu[] args)
{
ScriptMyLabel itsPosLabel = scg.ilGen.DefineLabel("llAbstemp");
args[0].PushVal(scg, errorAt);
scg.ilGen.Emit(errorAt, OpCodes.Dup);
scg.ilGen.Emit(errorAt, OpCodes.Ldc_I4_0);
scg.ilGen.Emit(errorAt, OpCodes.Bge_S, itsPosLabel);
scg.ilGen.Emit(errorAt, OpCodes.Neg);
scg.ilGen.MarkLabel(itsPosLabel);
result.Pop(scg, errorAt, retType);
}
public void MarkLabel(ScriptMyLabel myLabel)
{
}
public void Emit(Token errorAt, OpCode opcode, ScriptMyLabel myLabel)
{
}
/**
* @brief Declare that the target of a label is the next instruction.
*/
public void MarkLabel(ScriptMyLabel myLabel)
{
objFileWriter.Write((byte)ScriptObjWriterCode.MarkLabel);
objFileWriter.Write(myLabel.number);
}
public void Emit(Token errorAt, OpCode opcode, ScriptMyLabel myLabel)
{
objFileWriter.Write((byte)ScriptObjWriterCode.EmitLabel);
WriteOpCode(errorAt, opcode);
objFileWriter.Write(myLabel.number);
}