public InstructionArgType this[int idx]
{
get
{
switch(idx)
{
case 0:
return Arg1;
case 1:
return Arg2;
case 2:
return Arg3;
default:
throw new Exception("Invalid arg index!");
}
}
set
{
switch(idx)
{
case 0:
Arg1 = value;
break;
case 1:
Arg2 = value;
break;
case 2:
Arg3 = value;
break;
default:
throw new Exception("Invalid arg index!");
}
}
}
public static void RegisterType(InstructionArgType tp)
{
if (TypeLookup.ContainsKey(tp.Name))
throw new Exception("Duplicate arg type definition!");
tp.ID = TypeLookup.Count;
TypeLookup[tp.Name.ToUpper()] = tp;
}
/// <summary>
/// This should be called on all values
/// of this type. It initializes the class
/// fields.
/// </summary>
public void Init()
{
Arg1 = InstructionArgType.None;
Arg2 = InstructionArgType.None;
Arg3 = InstructionArgType.None;
}
public bool NeedsSizeArgument(InstructionArgType arg1Tp, InstructionArgType arg2Tp, InstructionArgType arg3Tp, ref List<byte> sizesNeeded, out bool constructorNeeded, ref List<string> formsNeeded)
{
constructorNeeded = true;
if (arg1Tp == InstructionArgType.None)
return false;
int cnt = 0;
int argChecking = -1;
SizelessArgSet argSet = new SizelessArgSet()
{
Arg1 = arg1Tp.TrueSizelessType,
Arg2 = arg2Tp.TrueSizelessType,
Arg3 = arg3Tp.TrueSizelessType
};
if (ConstructorsEmitted.ContainsKey(argSet))
{
constructorNeeded = false;
return false;
}
else
{
ConstructorsEmitted[argSet] = true;
constructorNeeded = true;
}
InstructionForm curForm = null;
foreach (InstructionForm f in FinalForms)
{
if (curForm == null && f.Arg1.ArgType == arg1Tp && f.Arg2.ArgType == arg2Tp && f.Arg3.ArgType == arg3Tp)
{
curForm = f;
}
else if (f.Arg1.ArgType.SizelessType == arg1Tp.SizelessType && f.Arg2.ArgType.SizelessType == arg2Tp.SizelessType && f.Arg3.ArgType.SizelessType == arg3Tp.SizelessType)
{
if (argChecking < 0)
{
if (f.Arg1.ArgType.Size != arg1Tp.Size)
{
argChecking = 0;
}
else if (f.Arg2.ArgType.Size != arg2Tp.Size)
{
argChecking = 1;
}
else if (f.Arg3.ArgType.Size != arg3Tp.Size)
{
argChecking = 2;
}
else
{
throw new Exception("Duplicate size!");
}
}
cnt++;
sizesNeeded.Add((byte)f[argChecking].ArgType.Size);
formsNeeded.Add(f.GetInstructionCaseString());
}
}
if (curForm == null)
throw new Exception("Unable to locate this form!");
if (argChecking >= 0)
{
cnt++;
sizesNeeded.Add((byte)curForm[argChecking].ArgType.Size);
formsNeeded.Add(curForm.GetInstructionCaseString());
}
return cnt > 1;
}
public CustomArgOperation(InstructionArgType parent, Token[] tokens)
{
this.toks = tokens;
this.ParentArg = parent;
}