Hydrofool: Memory map

Page	Byte	Address	Description
96	194	60C2	Data block at 60C2
97	167	61A7	JP (HL) trampoline
97	168	61A8	Initialize the object free list: chain B 24-byte records starting at DE (each record's first word points to the next)
97	193	61C1	Reset object system
97	227	61E3	New-game initialization
98	84	6254	Set object position (IX+5/+6) from grid index A (cell centre: row8+4, col8+4)
98	105	6269	Set current room to A: locate its description record and build the room
98	249	62F9	Test whether the current room is this level's Plug Room
99	13	630D	Plug Room grid setup
99	41	6329	Build the door/exit bitfield at $612B from the room description's byte1
99	68	6344	Draw single-piece doors, for $612B bits 0 and 3
99	119	6377	Draw three-piece doors, for $612B bits 1 and 2
99	208	63D0	Clear shadow screen
99	222	63DE	Data block at 63DE
100	47	642F	Draw the fixed wall/decoration layout selected by $6129
100	112	6470	Redraw one terrain grid cell (index in BC), used to restore terrain hidden behind an object's sprite
100	187	64BB	Draw loop shared with 6470: resolve a grid/terrain value to a sprite via the 74CE/750B tables and draw it
100	243	64F3	Redraw the whole room's terrain grid
100	255	64FF	Data block at 64FF
101	3	6503	Per-frame rust/oil tick: advances the rust timer, killing the player at $52
101	63	653F	Data block at 653F
101	67	6543	Draw one rust-gauge segment: compute its screen column from A and its sprite from table $653F, then draw via 8128
101	94	655E	Draw the rust/oil gauge: base icon plus repeated 6543 icons, scaled by the rust timer $6502
101	128	6580	Tick the rust/oil gauge
101	147	6593	Draw the message window's border/frame: corner icon plus 8-wide top and bottom edge strips, all via 8128
101	207	65CF	Data block at 65CF
101	219	65DB	Draw message window: room/creature title line + rotating clue/joke message line
102	34	6622	Use an oil can (kind $6E pickup, see 8AFB): resets rust timer, decrements oil-can count, plays sound
102	59	663B	Draw the oil-can icon and its remaining count on HUD ($6198)
102	83	6653	Prepare room with color 0
102	87	6657	Get room color from room description and store to 6175
102	99	6663	Spawn the room's creature (dynamic object)
102	146	6692	Insert a record pointer (DE) into the draw queue (60EC), sorted by the record's offset+2 byte
102	206	66CE	Room build: spawn each active object then settle it to the ground (height field +0x07, via collision test 9BF0)
103	40	6728	Queue this room's dropped items for drawing
103	67	6743	Draw the room title, awarding a first-visit bonus the first time this room is entered
103	109	676D	Draw current room
103	241	67F1	Attempt to move to an adjacent room (horizontal, via a door) in the direction given by ($8DC1)
104	128	6880	Count item-table entries whose room byte matches A
104	149	6895	Draw the currently-held item's icon, and its ammo count if it's a weapon, on HUD
104	193	68C1	Consume one shot of ammo; auto-drop the weapon when empty
104	222	68DE	Data block at 68DE
105	151	6997	Message at 6997
105	172	69AC	Draw the room's background
106	170	6AAA	Interrupt service routine: advance the frame counter, drive the AY music chip, then run per-frame game logic
106	231	6AE7	ISR continuation setup: latch the resume address and clear the frame-ready flag
106	241	6AF1	Idle loop: enable interrupts, drive the sound-effect player each pass
106	248	6AF8	Jump to new-game initialization
106	251	6AFB	Self-modified per-frame hook, called by the ISR 6AAA (currently a RET stub, patched by 6AFC)
106	252	6AFC	Patch 6AFB to RET (disabling the hook), then jump to new-game initialization
107	5	6B05	New-game initialization
107	113	6B71	Main game loop
108	6	6C06	Sprite number -> mask sprite number table (indexed by sprite number, read by 8128)
108	207	6CCF	Room descriptions.
114	134	7286	Data block at 7286
114	171	72AB	Data block at 72AB
114	177	72B1	Room-type template pointer table
114	209	72D1	Room-type templates
115	181	73B5	Room/creature title table
116	65	7441	Warning-sign / clue message table
116	206	74CE	Data block at 74CE
117	86	7556	Data block at 7556
117	174	75AE	Data block at 75AE
117	181	75B5	Decoration/creature spawner table (room-gated, see 8F82)
120	138	788A	Data block at 788A
124	137	7C89	Creature hit/defeat lookup table (see 9401)
124	154	7C9A	Data block at 7C9A
124	236	7CEC	Print engine entry point
124	249	7CF9	Print char routine (default mode)
125	50	7D32	Print engine mode: set inverse video flag
125	63	7D3F	Print engine mode: dispatch control code $16
125	72	7D48	Print engine mode: set cursor row
125	87	7D57	Print engine mode: set cursor column
125	99	7D63	Data block at 7D63
125	104	7D68	Print string routine
125	183	7DB7	Data block at 7DB7
125	199	7DC7	Print engine: plot one character glyph into the shadow-screen font buffer, then blit it
126	76	7E4C	Variables to use in routine 7E4F
126	79	7E4F	Flip sprite horizontally
126	169	7EA9	Scan all 6 keyboard half-rows into the row-snapshot buffer at $6184 down to $617F, used by 7EBE's input reader
126	190	7EBE	Read input: normalize the active control method into the 5-bit mask at 6186
127	142	7F8E	Reset the redraw bounding-box trackers ($6194-$6197) to empty
127	155	7F9B	Fold a screen rectangle (DE = top/left, HL = bottom/right pair) into the running redraw bounding box $6194-$6197
127	189	7FBD	Data block at 7FBD
127	192	7FC0	Reset the sprite-draw clip window ($610A-$610D) to the full play-field
127	205	7FCD	Compute the current sprite's own screen bounding box, clamped to the play-field, and fold it into the redraw tracker
128	17	8011	Sprite draw: clip the current sprite against the screen window ($610A-$610D), adjusting its data pointer and dimensions
128	157	809D	Sprite draw: build the per-row blit queue for the shadow screen, from the clipped sprite
129	7	8107	Sprite draw: execute the blit queue built by 809D, copying 2 planes (pixels+attributes?) per queued row
129	36	8124	Data block at 8124
129	40	8128	Draw sprite C with its mask at screen position DE (mask sprite number from the table at 6C06; A bit 7 = mirror flag)
130	38	8226	Data block at 8226
130	48	8230	Sprite draw: masked blit (AND mask, OR sprite data) into the shadow screen -- full-width and partial-width paths
130	158	829E	Data block at 829E
130	166	82A6	Non-aligned sprite blit: copy the nibble-merged buffer (built by 82DB) to the destination, row by row
130	207	82CF	Data block at 82CF
130	219	82DB	Sprite draw: RRD nibble-shift tail for 5 planes, non-byte-aligned blit variant
130	240	82F0	Sprite draw: full-width unmasked row copy (no mask needed, direct LDIR per row)
131	21	8315	Draw a wall/decoration piece
131	94	835E	Flush the queued redraw requests at $9D3C: draw each piece via 8315, then clear the queue
131	151	8397	Data block at 8397
132	69	8445	Per-frame sound-effect player: step the currently-playing effect's tone commands
132	142	848E	Request sound effect A (queued at $61A2, gated by the $61A0/$61A1 flags)
132	174	84AE	Dynamic object allocator
132	237	84ED	Load a sprite's A5DC record into the "current sprite" scratch variables at 618D, ready for 8128 to draw it
133	1	8501	Print string at HL until terminator byte $5E or $2B
133	14	850E	Print an inline string embedded right after the caller's CALL instruction
133	19	8513	Print a message-window string
133	35	8523	Print a BCD number
133	76	854C	Print one digit (JP target self-modified by 8523)
133	79	854F	Print BCD byte A as two digits, high digit blanked to a space if zero
133	103	8567	Entry-point room number table (menu keys A/B/C/D)
133	107	856B	Controls sub-menu text
133	150	8596	System/interrupt setup before the main menu
133	161	85A1	Main menu screen: title, entry list A-D, controls menu; loops until a selection starts the game
134	204	86CC	Draw the end-game stats screen
136	90	885A	Redraw the score display on HUD (last 4 BCD digits of 611B via 8523)
136	116	8874	Unused
136	121	8879	Add a 5-digit BCD value at 8874 to the score (611B)
136	142	888E	Add a bonus (HL, 5-digit BCD) to the score, then redraw the score display
136	148	8894	Subtract a BCD value from the score
136	185	88B9	Read the next value from a small circular queue, head pointer at IY+0/1, wrap pointer at IY+2/3, advancing the head
136	215	88D7	Add a bonus to the score, value from a circular queue via 88B9
136	221	88DD	Subtract a BCD value from the score, value from a circular queue via 88B9
136	227	88E3	Search the buffer at $7C83 for byte A (CPIR, length from $7C88)
136	239	88EF	Data block at 88EF
137	104	8968	PLAYER per-frame behaviour handler
138	135	8A87	Attempt to move to an adjacent room (vertical, via whirlpool/bubble)
138	179	8AB3	Direction -> screen position delta table, indexed by (facing_code AND $0E): 4 (dx,dy) pairs -- Up=(-2,0), Down=(+2,0), Right=(0,+2), Left=(0,-2). Read by 8ABB.
138	187	8ABB	Apply the object's facing direction to its position (IX+5/+6), returning the OLD position in BC
138	217	8AD9	Take one walk step
138	251	8AFB	Fire/pick-up button handler: attack with the held weapon, or pick up/drop an item
140	53	8C35	Weapon hit-response text: print "BLOCKED" via 8513, then return
140	72	8C48	Data block at 8C48
140	217	8CD9	Message at 8CD9
140	220	8CDC	Data block at 8CDC
140	223	8CDF	Player dive-depth step
140	248	8CF8	Data block at 8CF8
141	17	8D11	Alternate PLAYER behaviour handler (swapped into $8DB9 by 9564; see 8968 and 8DB6)
141	141	8D8D	Attack: fire the held weapon (reached from 8AFB when a weapon is held)
141	182	8DB6	PLAYER object record + 2 more fixed object records
142	55	8E37	Message at 8E37
142	59	8E3B	Data block at 8E3B
142	63	8E3F	Special grid-value spawn routine (value $68) -- rearing snake
142	110	8E6E	Creature spawn: compute initial height
142	167	8EA7	Special grid-value spawn routine (values $66/$6A) -- bubble source ($6A full-strength, $66 weak; see 9602)
142	242	8EF2	Special grid-value spawn routine (value $67) -- plant/coral
143	30	8F1E	Special grid-value spawn routine (value $69) -- whirlpool
143	76	8F4C	Special grid-value spawn routine (value $6B) -- plug
143	129	8F81	Unused
143	130	8F82	Spawn room-membership-gated decoration pairs
144	33	9021	Per-frame animation-table stepper
144	119	9077	Message at 9077
144	123	907B	Data block at 907B
144	124	907C	Message at 907C
144	128	9080	Data block at 9080
144	133	9085	Object type stub: dispatch into 90A8's creature AI setup
144	141	908D	Message at 908D
144	145	9091	Data block at 9091
144	168	90A8	Creature idle/wander AI
145	154	919A	Data block at 919A
145	166	91A6	Creature pause/transform step
145	226	91E2	Data block at 91E2
146	8	9208	Object type stub: dispatch into 9232's shared setup
146	16	9210	Data block at 9210
146	50	9232	Object type stub: dispatch into 90A8's creature AI setup
146	62	923E	Save continuation
146	70	9246	Data block at 9246
146	92	925C	Creature waypoint movement
147	61	933D	Unused
147	65	9341	Room-creature per-frame behaviour handler
148	1	9401	Creature hit/defeat sequence, called from 9341 when the "just hit" flag (bit 2 of +0x0D) is set
148	99	9463	Data block at 9463
148	113	9471	Behaviour handler of the fixed object record at $8E0F (object identity not yet known)
148	137	9489	Data block at 9489
148	149	9495	Message at 9495
148	153	9499	Data block at 9499
148	158	949E	Behaviour handler of the fixed object record at $8E27 (object identity not yet known)
148	202	94CA	Object lifetime tick
148	233	94E9	99D5 sprite-animation table for the plant/coral object (94EE)
148	238	94EE	Per-frame behaviour handler for value-$67 objects -- plant/coral
148	244	94F4	Plug Room win-condition trigger
149	38	9526	99D5 sprite-animation table for the whirlpool object (952D)
149	45	952D	Per-frame behaviour handler for value-$69 objects -- whirlpool
149	119	9577	99D5 sprite-animation table for the bubble source object (957C)
149	124	957C	Per-frame behaviour handler for value-$66/$6A objects -- bubble source
149	193	95C1	Data block at 95C1
150	2	9602	Per-frame behaviour handler for the individual rising-bubble particle spawned by 957C
150	132	9684	Per-frame behaviour handler for value-$68 objects -- rearing snake
151	35	9723	Data block at 9723
151	69	9745	Mark and redraw the static terrain cells behind an object's sprite, so moving objects don't leave trails
151	186	97BA	Draw an object's sprite
151	252	97FC	Change current room to A = new room number
152	6	9806	Data block at 9806
152	8	9808	Per-frame main loop entry
152	60	983C	Per-frame dynamic object dispatcher (walks the active object list from the head at 610E)
153	0	9900	Draw all queued objects: walk the record-pointer list at $60EC (count at $60EB), drawing each via 97BA
153	26	991A	Data block at 991A
153	35	9923	Spawn the weapon projectile object (thrown from the player's position, facing $8DC1), handler 9963
153	94	995E	Data block at 995E
153	99	9963	Weapon projectile per-frame handler: move (double step) and detect a hit on collision
153	161	99A1	Direction-indexed sprite-animation stepper
153	209	99D1	NEG / not NEG
153	213	99D5	Sprite-animation stepper: read next entry from a per-object sprite-number table, advancing a phase counter
154	73	9A49	Snap the object's position (IX+5/+6) to its grid-cell centre, then finalize via 9A60
154	96	9A60	Dynamic object finalizer
154	171	9AAB	Search the (key,data) pair table at $74CE for key A; returns Z with HL pointing at the matched pair's data byte
154	186	9ABA	Data block at 9ABA
154	188	9ABC	Terrain collision test for one screen point (B,C): convert to a grid cell and check its content
154	253	9AFD	Terrain sub-cell shape resolver
155	90	9B5A	Collision/overlap scan
155	210	9BD2	Data block at 9BD2
155	212	9BD4	Depth-tie resolver
155	240	9BF0	Collision test
156	50	9C32	Data block at 9C32
156	53	9C35	End-of-frame screen flip
157	60	9D3C	Data block at 9D3C
164	0	A400	Font 59 characters, 8 bytes each, 472 bytes
165	216	A5D8	Current mask sprite data address (set by 8128 before drawing)
165	220	A5DC	Table of Sprites, 201 records, 4 bytes each
169	0	A900	Dynamic object pool (creatures, bubble sources, snakes, whirlpools, plugs -- anything not baked into the static room grid; see 612C)
169	44	A92C	Data block at A92C
169	222	A9DE	Sprite, 24x32 pixels. Player sitting
170	62	AA3E	Sprite, 32x24 pixels. Player
170	158	AA9E	Sprite, 32x24 pixels. Player
170	254	AAFE	Sprite, 32x24 pixels. Player
171	94	AB5E	Sprite, 32x24 pixels. Player
171	190	ABBE	Sprite, 32x24 pixels. Player laying on back, hands up
172	30	AC1E	Sprite, 32x24 pixels. Player laying on back, dead
172	126	AC7E	Sprite, 32x24 pixels. Player
172	222	ACDE	Sprite, 32x16 pixels. Player shadow
173	30	AD1E	Sprite, 32x16 pixels. Player shadow
173	94	AD5E	Sprite, 32x16 pixels. Player shadow
173	158	AD9E	Sprite, 32x16 pixels. Player shadow
173	222	ADDE	Sprite, 24x24 pixels. Fish cloud
174	38	AE26	Sprite, 24x24 pixels. Fish cloud
174	110	AE6E	Sprite, 24x32 pixels. Jellyfish
174	206	AECE	Sprite, 24x32 pixels. Jellyfish
175	46	AF2E	Sprite, 24x32 pixels. Jellyfish
175	142	AF8E	Sprite, 24x24 pixels. Fish cloud
175	214	AFD6	Sprite, 24x32 pixels. Jellyfish
176	54	B036	Sprite, 32x24 pixels. Player
176	150	B096	Sprite, 32x24 pixels. Player
176	246	B0F6	Sprite, 32x24 pixels. Player
177	86	B156	Sprite, 32x24 pixels. Player
177	182	B1B6	Sprite, 32x32 pixels. Explosion
178	54	B236	Sprite, 32x24 pixels. Explosion
178	150	B296	Sprite, 16x24 pixels. Explosion small
178	198	B2C6	Sprite, 24x24 pixels. Fish cloud
179	14	B30E	Sprite, 32x24 pixels. Player
179	110	B36E	Sprite, 32x32 pixels. Fish
179	238	B3EE	Sprite, 32x32 pixels. Fish
180	110	B46E	Sprite, 32x32 pixels. Fish
180	238	B4EE	Sprite, 32x32 pixels. Fish
181	110	B56E	Sprite, 16x8 pixels. Snake, rearing phase
181	126	B57E	Sprite, 16x16 pixels. Snake, rearing phase
181	158	B59E	Sprite, 16x24 pixels. Snake, rearing phase
181	206	B5CE	Sprite, 16x32 pixels. Snake, rearing phase
182	14	B60E	Sprite, 16x32 pixels. Sea Horse
182	78	B64E	Sprite, 16x32 pixels. Sea Horse
182	142	B68E	Sprite, 32x32 pixels. Baby whale
183	14	B70E	Sprite, 32x32 pixels. Baby whale
183	142	B78E	Sprite, 32x32 pixels. Baby whale
184	14	B80E	Sprite, 32x32 pixels. Baby whale
184	142	B88E	Sprite, 16x24 pixels. Gnome item
184	190	B8BE	Mask, 16x24 pixels. Gnome item
184	238	B8EE	Sprite, 16x24 pixels. Bucket item
185	30	B91E	Mask, 16x24 pixels. Bucket item
185	78	B94E	Sprite, 16x24 pixels. Tin item
185	126	B97E	Mask, 16x24 pixels. Tin item
185	174	B9AE	Sprite, 16x24 pixels. Key item
185	222	B9DE	Mask, 16x24 pixels. Key item
186	14	BA0E	Sprite, 16x24 pixels. Horseshoe item (weapon; kills Sea Horses)
186	62	BA3E	Mask, 16x24 pixels. Horseshoe item
186	110	BA6E	Sprite, 16x24 pixels. Bone item (lures fish shoals away)
186	158	BA9E	Mask, 16x24 pixels. Bone item
186	206	BACE	Sprite, 16x24 pixels. Boot item
186	254	BAFE	Mask, 16x24 pixels. Boot item
187	46	BB2E	Sprite, 32x32 pixels. Treasure chest
187	174	BBAE	Mask, 32x32 pixels. Treasure chest
188	46	BC2E	Sprite, 16x32 pixels. Rock
188	110	BC6E	Mask, 16x32 pixels. Rock
188	174	BCAE	Sprite, 32x24 pixels. Plug
189	14	BD0E	Mask, 32x24 pixels. Plug
189	110	BD6E	Sprite, 16x16 pixels. Seaweed sprig
189	142	BD8E	Mask, 16x16 pixels. Seaweed sprig
189	174	BDAE	Sprite, 32x16 pixels. Whirlpool, animation phase 1
189	238	BDEE	Sprite, 32x16 pixels. Whirlpool, animation phase 2
190	46	BE2E	Sprite, 24x32 pixels. Plant/coral
190	142	BE8E	Mask, 24x32 pixels. Plant/coral
190	238	BEEE	Sprite, 24x32 pixels. Plant/coral
191	78	BF4E	Mask, 24x32 pixels. Plant/coral
191	174	BFAE	Sprite, 32x16 pixels. Closed clam shell
191	238	BFEE	Mask, 32x16 pixels. Closed clam shell
192	46	C02E	Sprite, 32x32 pixels. Open clam shell
192	174	C0AE	Mask, 32x32 pixels. Open clam shell
193	46	C12E	Sprite, 16x40 pixels. Seaweed
193	126	C17E	Mask, 16x40 pixels. Seaweed
193	206	C1CE	Sprite, 16x16 pixels. Small rock
193	238	C1EE	Mask, 16x16 pixels. Small rock
194	14	C20E	Sprite, 8x24 pixels. Small debris/particle
194	38	C226	Sprite, 8x24 pixels. Small debris/particle
194	62	C23E	Sprite, 8x24 pixels. Small debris/particle
194	86	C256	Sprite, 8x24 pixels. Small debris/particle
194	110	C26E	Sprite, 16x16 pixels. Disc/wheel
194	142	C28E	Sprite, 16x16 pixels. Disc/wheel
194	174	C2AE	Sprite, 16x16 pixels. Disc/wheel
194	206	C2CE	Sprite, 16x16 pixels. Disc/wheel
194	238	C2EE	Sprite, 16x16 pixels. Disc/wheel
195	14	C30E	Sprite, 16x16 pixels. Disc/wheel
195	46	C32E	Sprite, 16x16 pixels. Small stars
195	78	C34E	Sprite, 16x16 pixels. Small stars
195	110	C36E	Sprite, 16x16 pixels. Small stars disappearing
195	142	C38E	Sprite $68, 16x8 pixels. Bubble source object 957C, animation frame 1
195	158	C39E	Sprite $69, 16x8 pixels. Bubble source object 957C, animation frame 2
195	174	C3AE	Sprite, 32x32 pixels. Urn/well with seaweed
196	46	C42E	Mask, 32x32 pixels. Urn/well with seaweed
196	174	C4AE	Sprite, 32x32 pixels. Clam shell with pearl
197	46	C52E	Sprite, 16x24 pixels. Empty/unused frame
197	94	C55E	Sprite, 16x24 pixels. Oil can (anti-rust oil, refills Sweevo's suit)
197	142	C58E	Mask, 16x24 pixels. Oil can
197	190	C5BE	Sprite, 16x24 pixels. Shell item
197	238	C5EE	Mask, 16x24 pixels. Shell item
198	30	C61E	Sprite, 16x24 pixels. Harpoon item
198	78	C64E	Mask, 16x24 pixels. Harpoon item
198	126	C67E	Sprite, 16x24 pixels. Spoon item (weapon; kills Jellyfish)
198	174	C6AE	Mask, 16x24 pixels. Spoon item
198	222	C6DE	Sprite, 16x24 pixels. Ball or pearl
199	14	C70E	Mask, 16x24 pixels. Ball or pearl
199	62	C73E	Sprite, 16x24 pixels. Item icon, unidentified
199	110	C76E	Mask, 16x24 pixels. Item icon, unidentified
199	158	C79E	Sprite, 16x24 pixels. Item icon, unidentified
199	206	C7CE	Mask, 16x24 pixels. Item icon, unidentified
199	254	C7FE	Sprite, 40x24 pixels. Wall
200	118	C876	Sprite, 40x96 pixels. Wall
202	86	CA56	Sprite, 48x96 pixels. Wall
204	150	CC96	Sprite, 40x80 pixels. Wall
206	38	CE26	Sprite, 8x160 pixels. Font: alphanumeric character set, used for HUD/score text (not a game sprite)
206	198	CEC6	Mask, 24x32 pixels. Diver silhouette
207	38	CF26	Mask, 32x24 pixels.
207	134	CF86	Mask, 32x24 pixels.
207	230	CFE6	Mask, 32x24 pixels.
208	70	D046	Mask, 32x24 pixels.
208	166	D0A6	Mask, 32x24 pixels.
209	6	D106	Mask, 32x24 pixels.
209	102	D166	Mask, 32x24 pixels.
209	198	D1C6	Mask, 24x24 pixels. Fish cloud
210	14	D20E	Mask, 24x24 pixels. Fish cloud
210	86	D256	Mask, 24x32 pixels. Jellyfish
210	182	D2B6	Mask, 24x32 pixels. Jellyfish
211	22	D316	Mask, 24x32 pixels. Jellyfish
211	118	D376	Mask, 24x24 pixels. Fish cloud
211	190	D3BE	Mask, 24x32 pixels. Jellyfish
212	30	D41E	Mask, 32x24 pixels.
212	126	D47E	Mask, 32x24 pixels.
212	222	D4DE	Mask, 32x24 pixels.
213	62	D53E	Mask, 32x24 pixels.
213	158	D59E	Mask, 32x32 pixels. Round
214	30	D61E	Mask, 32x24 pixels.
214	126	D67E	Mask, 16x24 pixels.
214	174	D6AE	Mask, 24x24 pixels. Fish cloud
214	246	D6F6	Mask, 32x24 pixels.
215	86	D756	Mask, 32x32 pixels. Round
215	214	D7D6	Mask, 32x32 pixels. Round
216	86	D856	Mask, 32x32 pixels. Round
216	214	D8D6	Mask, 32x32 pixels. Round
217	86	D956	Mask, 16x8 pixels. Snake, rearing phase
217	102	D966	Mask, 16x16 pixels. Snake, rearing phase
217	134	D986	Mask, 16x24 pixels. Snake, rearing phase
217	182	D9B6	Mask, 16x32 pixels. Snake, rearing phase
217	246	D9F6	Mask, 16x32 pixels. Sea Horse
218	54	DA36	Mask, 16x32 pixels. Sea Horse
218	118	DA76	Mask, 32x32 pixels. Baby whale
218	246	DAF6	Mask, 32x32 pixels. Baby whale
219	118	DB76	Mask, 32x32 pixels. Baby whale
219	246	DBF6	Mask, 32x32 pixels. Baby whale
220	118	DC76	Sprite, 8x24 pixels. Spark/debris
220	142	DC8E	Sprite, 8x24 pixels. Spark/debris
220	166	DCA6	Sprite, 8x24 pixels. Spark/debris
220	190	DCBE	Sprite, 8x24 pixels. Spark/debris
220	214	DCD6	Sprite, 8x8 pixels. Gem/diamond icon
220	222	DCDE	Sprite, 8x8 pixels. Gem/diamond icon
220	230	DCE6	Sprite, 8x8 pixels. Gem/diamond icon
220	238	DCEE	Sprite, 8x8 pixels. Gem/diamond icon
220	246	DCF6	Sprite, 8x8 pixels. Gem/diamond icon
220	254	DCFE	Sprite, 32x32 pixels. Cube/pedestal
221	126	DD7E	Sprite, 32x32 pixels. Passage, closed/blocked
221	254	DDFE	Sprite, 16x16 pixels. Passage, part
222	30	DE1E	Sprite, 16x16 pixels. Passage, part
222	62	DE3E	Sprite, 16x16 pixels. Passage, part
222	94	DE5E	Sprite, 16x16 pixels. Passage, part
222	126	DE7E	Sprite, 16x16 pixels. Passage, part
222	158	DE9E	Sprite, 16x16 pixels. Passage, part
222	190	DEBE	Mask, 16x24 pixels.
222	238	DEEE	Mask, 16x16 pixels.
223	14	DF0E	Mask, 16x16 pixels.
223	46	DF2E	Sprite, 88x16 pixels. RUSTOMETER gauge graphic
223	222	DFDE	Sprite, 32x32 pixels. Passage, open
224	94	E05E	Sprite, 88x32 pixels. Sign: "PIRANHA / DO NOT TAP GLASS"
225	190	E1BE	Data block at E1BE
227	144	E390	Shadow screen 256x192, 32*192=6144 bytes
251	144	FB90	Menu tune + key-wait driver
251	168	FBA8	Data block at FBA8
251	180	FBB4	Melody-index table reader/advancer, used by FBD7
251	193	FBC1	Melody-index to period lookup, used by FBD7
251	207	FBCF	Continuation of FBB4
251	215	FBD7	Play one note / check key selection
252	48	FC30	NOTE: not a real string
252	52	FC34	Tone generator loop (continued)
252	70	FC46	Plain delay loop (no sound)
252	100	FC64	Note/period table for the FC04 tone generator
252	154	FC9A	Melody-index table (start)
254	52	FE34	Data block at FE34
255	206	FFCE	Data block at FFCE