In this mission, the hacker has to access a file containing 1 number and write a new file in the containing 2 values and copy them in the reverse order to a new file in the outbox before destroying the original.
With the REPL command it's possible to do this with one EXA module with an increase in size by 1 and a reduction in activity by 1. But the point is to learn how to use multiple EXA units.
Better size scores are achievable with a single EXA with optimized Cycles.
| Solution | Cycles | Size | Activity | EXA Modules |
|---|---|---|---|---|
| 01 | 404 | 13 | 2 | XA |
| 02 | 307 | 10 | 2 | XA |
LINK 800
GRAB 200
COPY F X
WIPE
LINK 800
MAKE
COPY X F
MARK LOOP
SUBI X 1 X
COPY X F
TEST X = 0
FJMP LOOP
HALT
LINK 800
GRAB 200
ADDI F 1 T
WIPE
LINK 800
MAKE
MARK LOOP
SUBI T 1 T
COPY T F
TJMP LOOP