                        ;; find min of two numbers
                        ;; input in r1, r2, output r3
                        
                        ;; let r4 = test
                        
                        .code 0
   0 X 31 4 1 2 9         lt r4 r1 r2
   1 L 9 4 4              jf r4 skip
   2 X 31 3 1 0 15        mv r3 r1
   3 L 6 0 5              jmp exit
                        :skip
   4 X 31 3 2 0 15        mv r3 r2
                        :exit
   5 X 31 0 0 0 19        trap 0
                        .end
                        
                        
