I keep track of the current and high position of the stack that will be needed by code being compiled.

	initialize-release
	init

	printing
	printOn:

	results
	position

	accessing	top
	pop:
	push:
	size Primitive. Answer the number of indexable variables in the receiver. This value is the same as the largest legal subscript. Essential. See Object documentation whatIsAPrimitive.

	initialize-release	top
	init

	printing	top
	printOn: Append to the argument, aStream, a sequence of characters that identifies the receiver.

	results	top
	position