Super Mario Bros. 3/RAM map

NOTE: All values in Table are Hexadecimal unless noted otherwise.

The following article is a RAM map for Super Mario Bros. 3.

RAM	Purpose
0A	Temp. used to adjust main character sprite vertical position
15	Increased by one every game cycle. Used as timer
75	On map screen vertical position. Multiples of 20, unless in boat.
77	Page counter on map screen
78	On map screen vertical position (see next RAM location description)
79	On map screen horizontal position. Multiples of 20, unless in boat. If multipaged, E0 shifts screen right, then 60, then D0, then 50. Shifting back to the left occurs at 20, then A0, then 20, then A0.
90	Mario/Luigi horizontal position. Changing may cause problems in Name Table.
A2	Mario/Luigi vetical position in levels.
A3-??	Enemy Sprite positions on screen
BD	Current horizontal speed
ED	Current Form: 00-Small, 01-Super, 02-Fire, 03-Racoon, 04-Frog, 05-Bear, 06-Hammer
EE	Mario/Luigi Character Sprite Displayed(gets set just before display)
EF	Mario/Luigi status flag: 40 facing right, 00 facing left
0100-01FF	CPU Stack
03DD	Power Meter in Status Bar, 7F is Full (Player Can Fly)
03F3	Character selection on map
04F1	(??) Set to $00 to remove some sounds (i.e. full fly meter sound)
0552	Timer that is set after player is hit. Determine how long you flash (are invincible)
0553	Timer for star mario
0567	Timer for P-Block
056E	Timer that determines how long flight will last. Power Meter instantly empies when this hits zero.
056F	(??) Set to $FF for squat-float effect
0577	Determines if Player is inside the Goomba Boot: 00-No, 01-Yes
057A	Enable statue mario characteristic (gray & invincible, note: can't go down pipes with this characteristic enabled)
057B	(??) Set to $FF to fill up fly meter while standing still
0584	Underwater / not underwater selection
0585	(??) Set to $FF to slide "right" (not left) through solid objects
0588	Timer for "Backstage" status
05EE-05F0	Time remaining
0669	The item you'll get from a toad house
066F	Card selection for the flashing card that you jump to get
0715-0717	current player score divided by dec10. (max F423F[dec999,999]) (There's a hard coded 0 in the score display)
0736	Mario # of Lives (max 63[dec99])
0737	Luigi # of Lives
0746	Mario's Form that he will start next level as. When the level is loaded this value gets transferred to 00ED.
0747	For Luigi; See 0746.
7D80-7D9B	Each Byte Represents an Item that Mario is Carrying (Pressing 'B' while at Map Screen): 00-No Item, 01-Mushroom, 02-Flower, 03-Leaf, 04-Frog, 05-Bear, 06-Hammer Bro Suit, 07-Cloud, 08-P-Wing, 09-Star, 0A-Anchor, 0B-Hammer, 0C-Whistle, 0D-Music Box. 0E and above will most likely crash the game, not completely tested though.
7D9C-7D9E	Each Byte Represents a reward card Mario has 00-No Item, 01-Mushroom, 02-Flower, 03-Star
7D9F-7DA1	Storage for Mario Score (/dec10)
7DA2	# of coins Mario has
7DA3-7DBE	Each Byte Represents an Item that Luigi is Carrying (Pressing 'B' while at Map Screen): 00-No Item, 01-Mushroom, 02-Flower, 03-Leaf, 04-Frog, 05-Bear, 06-Hammer Bro Suit, 07-Cloud, 08-P-Wing, 09-Star, 0A-Anchor, 0B-Hammer, 0C-Whistle, 0D-Music Box. 0E and above will most likely crash the game, not completely tested though.
7DBF-7DC1	Each Byte Represents a reward card Luigi has 00-No Item, 01-Mushroom, 02-Flower, 03-Star
7DC2-7DC4	Storage for Luigi Score(/dec10)
7DC5	# of coins Luigi has

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