External allocations using miniPicoLisp

[C K Kashyap]

Hi Alex et al,

Is there a reference implementation of external allocation using
miniPicoLisp?

Here's what I'd like to do - Create a new function called "alloc" that
allocates some memory.

(let A (alloc 100)
      (poke A 0 10)) # poke simply writes a byte(10) at offset 0

The part I want to ensure is that the memory that's allocated by alloc gets
collected by the GC.

Regards,
Kashyap