Lessons
Befunge · Expert
Befunge · Expert. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
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Lesson 1 · On the house
Turing completeness in 2D
Power vs convenience; stack, playfield, and IP.
Lesson 2
Self-modifying programs as first-class design
p/g as code rewrite, not only storage.
Lesson 3
Quines and reflection on the playfield
Programs that print themselves via g and structure.
Lesson 4
Concurrent-feeling control at scale
Nested diamonds, bridges, and rejoins.
Lesson 5
Tiny evaluator on the stack
Expression machine: ops as stack discipline.
Lesson 6
Robust I/O protocols
& ~ . , underflow, and EOF honesty.
Lesson 7
Debugging expert stills
IP traps, wrap surprises, stack contracts.
Lesson 8
Funge family notes (93 vs later)
Befunge-93 boundaries vs Funge-98 ideas — labeled.
Lesson 9
Capstone design: multi-path ABI
Documented stack contracts across paths.
Lesson 10
Expert capstone: coherent program
Read, compute, print, halt — cleanly.
Sample certificate
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Certificate
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