Human Resource Machine/Year 10

Instructions

Octoplier Suite

For each thing in the INBOX, multiply it by 8, and put the result in the OUTBOX.

Using a bunch of ADD commands is easy, but WASTEFUL! Can you do it using only 3 ADD commands? Management is watching.

Strategy

As the instruction indicate, you could take a similar approach to this problem as with Year 8 and add the value to itself several times, but it is possible to solve this problem with only three adds. This is because adding a number to itself is like multiplying it by two. And if you multiply a number by two, three times, it's just like multiplying it by eight.

In order to do this, you should copy the sum of the value with itself to a box (it can be the same box you previously used, or a new box, it's entirely up to you.) Then add the sum to itself (so in effect multiplying it by four.) Then copy it again and add it again to multiply it by eight.

a:
   INBOX
   COPYTO   0
   ADD      0
   COPYTO   1
   ADD      1
   COPYTO   2
   ADD      2
   OUTBOX
   JUMP     a

Optimizing

It is not possible to further optimize this solution.

Performance

Steps     Size      Speed
Goal        9         36
Reached     9         36