protected ExpressionValue EvalImmediate(string expr, bool hasEvaluationError = false,
Dictionary <string, ushort> symbols = null)
{
var assembler = new Z80Assembler();
assembler.Compile("");
if (symbols != null)
{
foreach (var pair in symbols)
{
assembler.SetSymbolValue(pair.Key, new ExpressionValue(pair.Value));
}
}
var exprNode = ParseExpr(expr);
return(assembler.EvalImmediate(null, exprNode));
}