   0 ;; if a > b then1 
   0 ;;   if b < c then2 e1 else2 e2 
   0 ;; else1 e3
   0 
   0 .s 
   0 	a 100
   0 	b 101
   0 	c 102
   0 .a 0
   0 .c
   0 	ld r1 a
   1 	ld r2 b
   2 	ld r3 c
   3 	sub r0 r1 r2 	;; compare a b
   4 	jmp GT then1 	;; if a > b then1
   5 	trap print r3 	;; else1 e3
   6 	jmp always exit
   7 :then1  sub r0 r2 r3 	;; compare b c
   8 	jmp LT then2
   9 	trap print r2 	;; else2 e2
  10 	jmp always exit
  11 :then2  trap print r1	;; then2 e1
  12 :exit   trap stop r0
  13 .a 100
 100 .w 3 2 1 
 103 .e
