This implements some words to return a range of numbers on the stack.
It's probably best to capture these values in an array.
First is a word to return values from a lower to upper limit, incrementing
upwards. The returned values are inclusive of the limits.
~~~:range-inc (lh-a)
over - n:inc [ I over + swap ] indexed-times drop ;
~~~
Next is a word to return values from an upper to lower limit, decrementing
upwards. The returned values are inclusive of the limits.
~~~:range-dec (hl-a)
over &- dip swap n:inc [ I over swap - swap ] indexed-times drop ;
~~~
The last word takes the limits and calls the appropriate word.
~~~:range (nn-a)
dup-pair gt? [ range-dec ] [ range-inc ] choose ;
~~~
As a simple test case:
```{ #1 #5 range } [ n:put sp ] a:for-each
```