An Operand-ExpressionType consists of those ExpressionTypes that are valid for use as operands in processor instructions. The following ExpressionTypes are not valid for use as an Operand-ExpressionType:
A String-ExpressionType is only valid as an Operand-ExpressionType if it is short enough to be converted to an Absolute-ExpressionType having an Operand Size less than or equal to the current Address Size setting.