internal fun <T> interleave(
  a: Iterable<T>,
  b: Iterable<T>,
): List<T> {
  val ia = a.iterator()
  val ib = b.iterator()

  return buildList {
    while (ia.hasNext() || ib.hasNext()) {
      if (ia.hasNext()) {
        add(ia.next())
      }
      if (ib.hasNext()) {
        add(ib.next())
      }
    }
  }

	MOVM.DA	(F1), [R0-R4]      // ERROR "illegal base register"
	MOVM.IB	(F1), [R0-R4]      // ERROR "illegal base register"
	MOVM.DB	(F1), [R0-R4]      // ERROR "illegal base register"
	MOVM.IA	[R0-R4], (F1)      // ERROR "illegal base register"
	MOVM.DA	[R0-R4], (F1)      // ERROR "illegal base register"
	MOVM.IB	[R0-R4], (F1)      // ERROR "illegal base register"
	MOVM.DB	[R0-R4], (F1)      // ERROR "illegal base register"