SCOPE Solution

ROTATE RING

SCOPE ACT 4

In-game screenshot of ROTATE RING
In-game view
FamilySCOPE Graph0.588 Difficulty0.588 Ring04 IDsc_a4_03_rotate_ring

Prerequisites

Luhn Lock

Unlocks

Substitution Box

Reference firmware sc_a4_03_rotate_ring locked
Par power127 Par lines6 Par chips1

Objective

A paired bit pattern rotates around the byte.

Board Data

  • Window: 64
  • Pins: p0 OUT
  • Channels: p0 ANALOG label=CH1_p0_DAC
  • Peripherals: DAC data=p0 label=DAC_p0
Firmware Solution 
      mov  r0, 129
loop:
      out  p0, r0
      slp  2
      rol  r0, 1
      jmp  loop
Board Definition 
# ROTATE RING. ACT 4. SCOPE waveform board.
# TITLE ROTATE RING
# OBJECTIVE A paired bit pattern rotates around the byte.
ID sc_a4_03_rotate_ring
WINDOW 64
DIR p0 OUT
PERIPH DAC data=p0 label=DAC_p0
CHAN p0 ANALOG label=CH1_p0_DAC
PAR power=127 lines=6 chips=1