Review week 12: states

This week was about time and states. For review:

• Memory: registers keep their value between ticks. move last new at the end of a pass remembers the last value.
• Edges: sgt edge new last is 1 for exactly one tick when a 0/1 signal jumps from 0 to 1. Compare first, then remember.
• Button: Activate is 1 for about 0.55 s. Toggle with xor only on the edge, a lockout catches double presses.
• Timers: 1 tick = 0.5 s. An on-delay counts up and drops back at 0, a run-on is charged and counts down. sleep blocks the chip.
• Sequences: the step number sits in a register, every block ends with a jump to the shared output.
• Interlock: read the state of the other door, one door gets priority, NaN counts as open, Lock blocks manual use.

You pass from 60 %, the explanations appear after handing in.