# Cons two things on the stack.



consCount = 0
cons = ->
  consCount++
  if DEBUG then console.log "cons tos: " + tos + " # " + consCount
  #if consCount == 444
  #  debugger
  # auto var ok, no opportunity for garbage collection after p = alloc()
  p = new U()
  p.k = CONS
  p.cons.cdr = pop()
  if p == p.cons.cdr
    debugger
    console.log "something wrong p == its cdr"

  p.cons.car = pop()


  ###
  console.log "cons new cdr.k = " + p.cons.cdr.k + "\nor more in detail:"
  console.log print_list p.cons.cdr
  console.log "cons new car.k = " + p.cons.car.k + "\nor more in detail:"
  console.log print_list p.cons.car
  ###

  push(p)