+TODO LIST:
+
+ - Update README
+ - Write functions for moving wumpus, player movement, player shooting, parsing player commands.
+ - Write a function 'get highest tunnel index' for use in the 'check for pits/bats/wumpus' functions.
+ - Double-check per-file TODOs for critical tasks.
+ - Double-check #includes for all subroutines.
+ - Re-order subroutines in all files for readability.
+
+================================================================================
+
+# Subroutine Labels #
+
+NSSVTTTTTTTTSSSSSSSSN | Mark: 11111111 00000000 (wump_kill)
+NSSVTTTTTTTTSSSSSSSTN | Mark: 11111111 00000001 (kill_wump)
+NSSVTTTTTTTTSSSSSSTSN | Mark: 11111111 00000010 (no_arrows)
+NSSVTTTTTTTTSSSSSSTTN | Mark: 11111111 00000011 (shoot_self)
+NSSVTTTTTTTTSSSSSTSSN | Mark: 11111111 00000100 (jump)
+NSSVTTTTTTTTSSSSSTSTN | Mark: 11111111 00000101 (pit_kill)
+NSSVTTTTTTTTSSSSSTTSN | Mark: 11111111 00000110 (pit_survive)
+NSSVTTTTTTTTSSSSSTTTN | Mark: 11111111 00000111 (please_seed_rng)
+NSSVTTTTTTTTSSSSTSSSN | Mark: 11111111 00001000 (problem_with_yes_no_answer)
+NSSVTTTTTTTTSSSSTSSTN | Mark: 11111111 00001001 (instructions)
+NSSVTTTTTTTTSSSSTSTSN | Mark: 11111111 00001010 (cave_description)
+
+NSSVTSSSSSSSN | MARK: 10000000 (wump)
+NSSVTSSSSSSTN | MARK: 10000001 (set_config_values)
+NSSVTSSSSSTSN | MARK: 10000010 (wump_init)
+NSSVTSSSSSTTN | MARK: 10000011 (seed_rng)
+NSSVTSSSSTSSN | MARK: 10000100 (build_cave)
+NSSVTSSSSTSTN | MARK: 10000101 (populate_cave)
+NSSVTSSSSTTSN | MARK: 10000110 (clear_cave_data)
+NSSVTSSSSTTTN | MARK: 10000111 (generate_cave_hop_length)
+NSSVTSSSTSSSN | MARK: 10001000 (get_tunnel_destination)
+NSSVTSSSTSSTN | MARK: 10001001 (set_tunnel_destination)
+NSSVTSSSTSTSN | MARK: 10001010 (get_random_room)
+NSSVTSSSTSTTN | MARK: 10001011 (get_room_struct_size)
+NSSVTSSSTTSSN | MARK: 10001100 (room_has_bats)
+NSSVTSSSTTSTN | MARK: 10001101 (room_has_pits)
+NSSVTSSSTTTSN | MARK: 10001110 (build_circular_tunnels)
+NSSVTSSTSSSSN | MARK: 10010000 (set_bats)
+NSSVTSSTSSSTN | MARK: 10010001 (set_pits)
+NSSVTSSTSSTSN | MARK: 10010010 (reset_cave_population)
+NSSVTSSTSSTTN | MARK: 10010011 (populate_bats)
+NSSVTSSTSTSSN | MARK: 10010100 (populate_pits)
+NSSVTSSTSTSTN | MARK: 10010101 (place_player)
+NSSVTSSTSTTSN | MARK: 10010110 (build_random_tunnels)
+NSSVTSSTSTTTN | MARK: 10010111 (get_next_tunnel_slot)
+NSSVTSSTTSSSN | MARK: 10011000 (get_answer)
+!!!NSSVTSSTTSSTN | MARK: 10011001 (get_line)
+NSSVTSSTTSTSN | MARK: 10011010 (wump_loop)
+NSSVTSSTTSTTN | MARK: 10011011 (print_cave_description)
+NSSVTSSTTTSSN | MARK: 10011100 (are_bats_near)
+NSSVTSSTTTSTN | MARK: 10011101 (are_pits_near)
+NSSVTSSTTTTSN | MARK: 10011110 (is_wumpus_near)
+NSSVTSSTTTTTN | MARK: 10011111 (is_wumpus_very_near)
+NSSVTSTSSSSSN | MARK: 10100000 (room_has_wumpus)
+NSSVTSTSSSSTN | MARK: 10100001 (print_room_stats)
+
+================================================================================
+
+# Heap Assignments #
+
+GAME_DATA_BASE = 0x1000
+
+GAME_DATA_BASE = Number of rooms in cave
+GAME_DATA_BASE+001 = Number of pits
+GAME_DATA_BASE+002 = Number of bats
+GAME_DATA_BASE+003 = Number of links per room
+GAME_DATA_BASE+004 = Maximum arrow flight distance
+GAME_DATA_BASE+005 = Number of arrows
+GAME_DATA_BASE+006 = Player location
+GAME_DATA_BASE+007 = Wumpus location
+
+ROOM_DATA_BASE = 0x2000
+ Each room is structured as:
+ BASE+0 = bool:contains_pit? (valid options are 0 or 1)
+ BASE+1 = bool:contains_bat? (valid options are 0 or 1)
+ BASE+2 = int:connected room (-1 indicates no tunnel, 0 or greater is the index of the destination room)
+ ...
+ BASE+n = int:connected room (last: see 'links per room')
+
+USER_INPUT_BUFFER = 0x3000