/// <summary>
/// Gets the address pointed to by a pointer referenced by a long address.
/// </summary>
/// <param name="baseAddress">24-bit address</param>
/// <param name="Index"></param>
/// <returns></returns>
private int GetPointerLong(int baseAddress, Register Index = null)
{
int addr = baseAddress;
if (Index != null)
{
addr += Index.Value;
}
return(DataBank.GetLongAddress(MemMgr.ReadWord(addr)));
}
/// <summary>
/// Gets the address pointed to by a pointer in the data bank.
/// </summary>
/// <param name="baseAddress"></param>
/// <param name="Index"></param>
/// <returns></returns>
private int GetPointerLocal(int baseAddress, Register Index = null)
{
int addr = DataBank.GetLongAddress(baseAddress);
if (Index != null)
{
addr += Index.Value;
}
return(addr);
}
/// <summary>
/// Gets the address pointed to by a pointer in Direct page.
/// be in the Direct Page. The address returned will be DBR+Pointer.
/// </summary>
/// <param name="baseAddress"></param>
/// <param name="Index"></param>
/// <returns></returns>
private int GetPointerDirect(int baseAddress, Register Index = null)
{
int addr = DirectPage.Value + baseAddress;
if (Index != null)
{
addr += Index.Value;
}
int pointer = MemMgr.ReadWord(addr);
return(DataBank.GetLongAddress(pointer));
}