About the interpreter

[LdBeth]

Now we have a lambda rep based interpretation, however it is buggy and limited in certain ways:

• It doesn't implement runtime I/O, and because the type checker requires top-level to be integer, it can only do integer arithmetic.

• It can't even do integer arithmetic right, because the design represents integer as even number Int32 so it can be distinguished from pointers, which uses odd number Int32, and the the convention's done at parsing time, but the lambda interpreter is written for regular integers.