public override DynValue Visit(MemoryGetNode memoryGetNode)
{
if (Memory == null)
{
throw new RuntimeException("There is no memory to index.", memoryGetNode.Line);
}
var address = Visit(memoryGetNode.Index).Number;
if (address % 1 != 0)
{
throw new RuntimeException("Memory indexing using fractions is not supported.", memoryGetNode.Line);
}
if (address >= Memory.Array.Length || address < 0)
{
throw new RuntimeException("Memory indexer is out of bounds.", memoryGetNode.Line);
}
if (memoryGetNode.Size == MemoryGetNode.OperandSize.Byte)
{
return(new DynValue(Memory.Peek8((int)address)));
}
else if (memoryGetNode.Size == MemoryGetNode.OperandSize.Word)
{
return(new DynValue(Memory.Peek16((int)address)));
}
else if (memoryGetNode.Size == MemoryGetNode.OperandSize.Dword)
{
return(new DynValue(Memory.Peek32((int)address)));
}
else
{
throw new RuntimeException("Internal error: Unsupported memory operation size.", memoryGetNode.Line);
}
}
public abstract DynValue Visit(MemoryGetNode memoryCellNode);
