; The Parameter stack (PS) is maintained by SP and the Return stack (RS) is
; maintained by IX. This allows us to generally use push and pop freely because
; PS is the most frequently used. However, this causes a problem with routine
; calls: because in Forth, the stack isn't balanced within each call, our return
; offset, when placed by a CALL, messes everything up. This is one of the
; reasons why we need stack management routines below.
;
; This return stack contain "Interpreter pointers", that is a pointer to the
; address of a word, as seen in a compiled list of words.

; Push value HL to RS
pushRS:
	ld	(ix), l
	inc	ix
	ld	(ix), h
	inc	ix
	ret

; Pop RS' TOS to HL
popRS:
	dec ix
	ld	h, (ix)
	dec ix
	ld	l, (ix)
	ret