Review week 44: optimisation

This week was about the chip's limits and how to stay below them. For review:

• Limits: 128 lines (every line counts), 90 characters per line (with comment), 4096 characters in total (with line breaks). The long form is counted, HASH("…") in full.
• Saving characters: move long docs out, delete superfluous comments, shorten names only in moderation. The game version removes comments and blank lines.
• Saving lines: select and comparison instructions instead of jumps, subroutines, loops with name tables.
• Instruction budget: 128 steps per tick, every line passed costs one – comments and labels too. Long work in portions, important things right after the yield.
• Fast patterns: batch instead of loops, read values once, only write on change.

You pass from 60 %.