public Storage VisitStackLocalStorage(StackLocalStorage local)
{
if (define)
{
if (liveStackVars.ContainsKey(local))
{
defBitSize = liveStackVars[local];
liveStackVars.Remove(local);
}
defOffset = 0;
}
else
{
if (liveStackVars.ContainsKey(local))
{
liveStackVars[local] =
Math.Max(useBitSize, liveStackVars[local]);
}
else
{
liveStackVars.Add(local, useBitSize);
}
}
return(null);
}
public void Setup()
{
f = new Frame(PrimitiveType.Word16);
varOff = (StackLocalStorage)f.EnsureStackLocal(-4, PrimitiveType.Word16).Storage;
varSeg = (StackLocalStorage)f.EnsureStackLocal(-2, PrimitiveType.SegmentSelector).Storage;
varPointer = (StackLocalStorage)f.EnsureStackLocal(-4, PrimitiveType.Ptr32).Storage;
}
public Storage VisitStackLocalStorage(StackLocalStorage local)
{
if (defining)
{
regDefs[local] = value;
}
else
{
value = null;
regDefs.TryGetValue(local, out value);
}
return(local);
}
private Expression EffectiveAddress(Identifier id)
{
Identifier fp = proc.Frame.FramePointer;
StackLocalStorage local = id.Storage as StackLocalStorage;
int offset = local.StackOffset + proc.Frame.FrameOffset;
BinaryOperator op;
if (offset < 0)
{
offset = -offset;
op = Operator.ISub;
}
else
{
op = Operator.IAdd;
}
PrimitiveType p = (PrimitiveType)fp.DataType;
Expression ea = new BinaryExpression(op, fp.DataType,
fp, Constant.Create(PrimitiveType.Create(Domain.SignedInt, p.Size), offset));
return(ea);
}
public Identifier VisitStackLocalStorage(StackLocalStorage local)
{
throw new NotImplementedException();
}
public bool VisitStackLocalStorage(StackLocalStorage local, bool defining)
{
return(true);
}
public Identifier VisitStackLocalStorage(StackLocalStorage loc)
{
return(frame.EnsureStackLocal(loc.StackOffset, loc.DataType));
}
public bool VisitStackLocalStorage(StackLocalStorage local)
{
return(liveState.LiveStorages.ContainsKey(local));
}
public string VisitStackLocalStorage(StackLocalStorage local)
{
return("local");
}
public Storage VisitStackLocalStorage(StackLocalStorage local)
{
return(null);
}
public Expression VisitStackLocalStorage(StackLocalStorage local)
{
throw new NotImplementedException();
}
public Storage VisitStackLocalStorage(StackLocalStorage local)
{
ctx.StackState[local.StackOffset] = value;
return(local);
}
public void Setup()
{
f = new Frame(PrimitiveType.Word16);
varOff = (StackLocalStorage) f.EnsureStackLocal(-4, PrimitiveType.Word16).Storage;
varSeg = (StackLocalStorage) f.EnsureStackLocal(-2, PrimitiveType.SegmentSelector).Storage;
varPointer = (StackLocalStorage) f.EnsureStackLocal(-4, PrimitiveType.Pointer32).Storage;
}
