SCOPE Solution

SHORT PULSE

SCOPE ACT 2

In-game screenshot of SHORT PULSE
In-game view
FamilySCOPE Graph0.197 Difficulty0.197 Ring01 IDsc_a2_01_short_pulse

Prerequisites

XOR Door

Unlocks

COMPARATOR

Reference firmware sc_a2_01_short_pulse locked
Par power20 Par lines8 Par chips1

Objective

One bright tick followed by seven quiet ticks.

Board Data

  • Window: 32
  • Pins: p0 OUT
  • Channels: p0 ANALOG label=CH1_p0_DAC
  • Peripherals: DAC data=p0 label=DAC_p0
Firmware Solution 
; SHORT PULSE reference. One bright tick at a fixed height, then seven quiet. There
; is no per-case seed: the visible waveform is the whole spec, so a plain out/slp
; loop locks. This Act 2 board reads no input, so the firmware types the height.
loop:
        out  p0, 240       ; one bright tick at a fixed height
        slp  1
        out  p0, 0
        slp  7             ; seven quiet ticks
        jmp  loop
Board Definition 
# SHORT PULSE. ACT 2. SCOPE waveform board.
# TITLE SHORT PULSE
# OBJECTIVE One bright tick followed by seven quiet ticks.
# A single one-tick spike at a fixed height, then the floor held to fill period 8.
# The visible ghost is the whole spec: this Act 2 board reads no input, so the plain
# out/slp transcript locks (no hidden per-case seed to diverge on).
ID sc_a2_01_short_pulse
WINDOW 32
DIR p0 OUT
PERIPH DAC data=p0 label=DAC_p0
CHAN p0 ANALOG label=CH1_p0_DAC
PAR power=20 lines=8 chips=1