Castlevania II: Simon's Quest/RAM map

The following article is a RAM map for Castlevania II: Simon's Quest.

RAM	Function	Detail
0x0005	Pause Menu Displayed	12h (hexadecimal) = no, 00h = yes
0x0018	Game Mode	00h = reset, 01h = title screen, 02h = something title?, 03h = title starts game, 04h = lives display, 05h = game, 06h = trigger life loss, 07h = game over, 08h = title menu, 09h = trigger ending (load mode), 0ah = ending, 0bh = trigger ???, 0ch = trigger load ending graphics and then trigger 09h?, 0dh = trigger 0ch?, 0eh = ending complete? back to title screen, 0fh = GAME START fade-out
0x0019	Game Sub-Mode
0x0022	Black Screen Timer	0 = no black screen, not 0 = black screen and counts down to 0
0x0023	Title Menu Option	0 = GAME START, 1 = PASSWORD
0x0026	Pause	0 = not paused, 1 = start pause, 2 = select pause
0x002A	Game Mode Timer
0x002c	Transition Type	00h = trigger lives display, 01h = lives display, 02h = loading, 03h = no transition, 04h = day/night change dialog, 05h = fade out, 06h = black screen, 07h = fade back in, 08h = horizontal room transition, 09h = vertical room transition, 0ah = horizontal region transition, 0bh = vertical region transition
0x0030	Region	00h = town, 01h = mansion, 02h = woods, 03h = graveyard, 04h = mountains, 05h = castlevania's ruins
0x0031	Lives
0x0034	Is Dead Flag	0 = no, not 0 = yes
0x0035	Death Timer
0x0046	Experience 00xx	Two digits 0-9
0x0047	Experience xx00	Two digits 0-9
0x0048	Hearts 00xx	Two digits 0-9
0x0049	Hearts xx00	Two digits 0-9
0x004a	Acquired Sub-Weapons	Each sub-weapon one bit (01h = dagger, 02h = silver knife, 04h = gold knife, 08h = holy water, 10h = diamond, 20h = sacred flame, 40h = oak stake, 80h = nothing)
0x004c	Laurels Count	Two digits 0-9
0x004d	Garlic Count	Two digits 0-9
0x004f	Equipped Item
0x0053-54	Simon X position in room (pixels)
0x006c-6d	Simon X speed (sub-pixels and pixels)
0x0077	Dialog Box Letter Y Tile (in nametable)
0x0078	Dialog Box Letter X Tile
0x007b	Dialog Box Letter Timer
0x007c	Dialog Box Letter ID
0x007d	Dialog Box Line Starting X Tile & Merchant Dialog Box Refuse Timer
0x007e	Dialog Box Choice	0 = "NO", 1 = "YES"
0x0080	Energy	Starts at 30h
0x0081	Max Energy
0x0082	Day or Night Flag	0 = Day, 1 = Night
0x0083	Time xx:00:00.00	Days
0x0084	Time 00:00:00.xx	Frames (not displayed in-game, 15 frames per minute (0x00 to 0x0e inclusive))
0x0085	Time 00:00:xx.00	Minutes
0x0086	Time 00:xx:00.00	Hours
0x008B	Level
0x0090	Equipped Sub-Weapon	(0 for nothing and 1 to 7 in the same order as in the in-game menu)
0x0091	Acquired Items	Each item one bit (01h = rib, 02h = heart, 04h = eye, 08h = nail, 10h = ring, 20h = white gem, 40h = blue gem, 20h+40h = red gem, 80h = nothing)
0x0092	More Acquired Items	Each item one bit (01h = silk bag, 02h = magic cross, 04h = laurels, 08h = garlic)
0x00a1-a2	Noise/DPCM Note Pointer
0x00ab	Pulse 1 Note Time Left
0x00ac	Pulse 2 Note Time Left
0x00ad	Triangle Note Time Left
0x00af	Noise active	0 = no, 1 = yes
0x00bb	Noise Period and Volume	probably pointer to a table
0x00bc	Noise/DPCM Note Pointer (copy of 0x00a1?)
0x00f1	Controller Held
0x00f3	Controller Tapped
0x00fc	Y Screen Scroll (pixels)
0x00fd	X Screen Scroll (pixels)
0x0124	Pulse 1 Volume
0x0125	Pulse 2 Volume
0x0150	Pulse 1 Frame Of Volume Envelope
0x0151	Pulse 2 Frame Of Volume Envelope
0x0300-509?	Objects Table	let i be the index of an object and j be a property of that object, that property is at address (0x300 + j*18 + i). List of Objects i (in decimal) Object 0 Simon 1 Simon whip 2 Simon whip tip 3-5 Simon sub-weapons 6-14 at least NPCs/Enemies/Collectibles List of Properties j (in decimal) Property 0 Absolute Animation Frame 2 Y position in camera (pixels) 3 Y position in camera (sub-pixels) 4 X position in camera (pixels) 5 X position in camera (sub-pixels) 6 Y speed (signed pixels) 7 Y speed (sub-pixels) 8 X speed (signed pixels) 9 X speed (sub-pixels) 10 AI 11 Disappear during pause (0 = no, 4 = yes) 12 State (possible values for Simon: 00h = standing, 01h = walking, 02h = jumping, 03h = crouching, 04h = attacking, 05h = fall from ledge, 06h = hurt, 07h = auto-align with stairs, 08h = start stairs, 09h = stand on stairs, 0ah = walk on stairs, 80h = start death, 81h = death hurt, 82h = dead on the floor, ffh = dead to lives display) 13 Timer until next Animation Frame 14 Animation Frame of Current Animation 16 Direction faced (0 = left, 1 = right) 18 Sub-State 25 Health 28 I-Frames
0x0434	Current Whip	00h = leather, 01h = thorn, 02h = chain, 03h = morning star, 04h = flame
0x0446	Simon jump is rising	0 = no, 1 = yes
0x050a?-6ff?	Block Clipdata?