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Super Mario Bros. 2 (NES)/RAM map: Difference between revisions

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{{rammap|game=Super Mario Bros. 2}}
{{rammap|game=Super Mario Bros. 2}}


====Sprite Related====
=RAM=
 
==Counters==
 
* $04ED - Current number of lives
* $05C5 - Current number of Continues
* $062A - Current number of cherries
* $062B - Current number of coins pulled in Subspace (Slot machine currency)
* $062C - Current number of BIG vegetables pulled for stop watch
 
* $062D - Number of levels finished as Mario
* $062E - Number of levels finished as Princess
* $062F - Number of levels finished as Toad
* $0630 - Number of levels finished as Luigi
 
==Sprite Related==


* $0014 - Page of main character's X position
* $0014 - Page of main character's X position
* $001E - Page of main character's Y position
* $001E - Page of main character's Y position
* $0638 - Player's Overalls Palette
* $0639 - Player's Cap Palette
* $063A - Player's Skin Palette


=====Position of sprites=====
===Position of sprites===


======X position on page======
====X position on page====


* $0028 - main character
* $0028 - main character
Line 17: Line 35:
* $002D - enemy 1
* $002D - enemy 1


======Y position on page======
====Y position on page====


* $0033 - enemy 5
* $0033 - enemy 5
Line 25: Line 43:
* $0037 - enemy 1
* $0037 - enemy 1


=====Speed of sprites (left/right)=====
===Speed of sprites (left/right)===


* $003C - enemy 5
* $003C - Main character
* $003D - enemy 4
* $003D - Enemy 5
* $003E - enemy 3
* $003E - Enemy 4
* $003F - enemy 2
* $003F - Enemy 3
* $0040 - enemy 1
* $0040 - Enemy 2
* $0041 - Enemy 1


=====Jumping Physics=====
===Jumping Physics===


* $0046 - main character
* $0046 - main character
Line 46: Line 65:
  01 - yes
  01 - yes


=====Misc. sprite addresses=====
===Misc. sprite addresses===


* $0051 - Enemy 5
* $0051 - Enemy 5
Line 53: Line 72:
* $0054 - Enemy 2
* $0054 - Enemy 2
* $0055 - Enemy 1
* $0055 - Enemy 1
  00 - Invisable
  00 - Invisible
  01 - Visable
  01 - Visible
  02 - Dead
  02 - Dead


Line 69: Line 88:
  24 - carrying main character with same speed as movement
  24 - carrying main character with same speed as movement


=====Sprite's palette, mirroring, etc.=====
===Sprite's palette, mirroring, etc.===


* $0065 - Enemy 5
* $0065 - Enemy 5
Line 77: Line 96:
* $0069 - Enemy 1
* $0069 - Enemy 1


====Timers====
===Sprite IDs===
 
* $008F - Character selected (appearance only, until defeated, then stats as well)
00 - Mario
01 - Princess
02 - Toad
03 - Luigi
* $0090 - Enemy 5
* $0091 - Enemy 4
* $0092 - Enemy 3
* $0093 - Enemy 2
* $0094 - Enemy 1
 
* $0096 - Item pulled up from ground
 
* $0099 - Graphics for when main character jumps
* $009A - Drop through
* $009B - Graphics for when main character walks
 
* $00C7 - Character's status
 
===Sprite HP===
 
* $0465 - Enemy 5
* $0466 - Enemy 4
* $0467 - Enemy 3
* $0468 - Enemy 2
* $0469 - Enemy 1
 
===Main character===


* $0085 - Amount of time left until Mario becomes vulnerable
* $04C2 - Current life in the life meter
0F - One heart
1F - Two hearts
2F - Three hearts
3F - Four hearts
 
* $04C3 - Number of bars in the life meter (for visual purposes only)
FF - One bar (doesn't work very well)
00 - Two bars (default)
01 - Three bars
02 - Four bars
 
==Timers==
 
* $0010 - General 256 frames framerule counter
* $0085 - Amount of time left until main character becomes vulnerable
* $0086 - Amount of time left for unknown
* $0086 - Amount of time left for unknown
* $0087 - Amount of time left before Bob Omb 5 explodes
* $0087 - Amount of time left before Bob Omb 5 explodes
Line 89: Line 152:
* $008D - Amount of time left before Bomb 2 explodes
* $008D - Amount of time left before Bomb 2 explodes
* $008E - Amount of time left before Bomb 3 explodes
* $008E - Amount of time left before Bomb 3 explodes
* $00B9 - Current time left to use Pidget's carpet
* $04B7 - Amount of time left in subspace
* $04E0 - Amount of time left as star Mario
* $04FF - Current amount of time left from the stop watch
* $14CA - Timer for crouch jump power (0 - 3C)


====Sprite IDs====
===Item flags===


$008F - Character selected (appearance only, until defeated, then stats as well)
* $009C - Holding an item?
......00 - Mario
00 = no
......01 - Princess
01 = yes
......02 - Toad
* $009D - Character's mirroring, etc. (not palette)
......03 - Luigi
* $00A3 - Changes once for everytime Tweeter jumps
$0090 - Changes enemy 5's ID
$0091 - Changes enemy 4's ID
$0092 - Changes enemy 3's ID
$0093 - Changes enemy 2's ID
$0094 - Changes enemy 1's ID


$0096 - Item pulled up from ground
* $00AD - Is key held?
00 - no
01 - yes -  Key appears above head even if thrown, but then not chased.
* $00AE - Item in hand height (used for different character sizes?)


$0099 - Sprite graphics used when jumping
==Misc.==
$009A - Drop through
$009B - Sprite graphics used when walking


$009C - Status - Holding an item
* $002F - Bonus chance left card
......00 = no
......01 = yes
$009D - Character's mirroring, etc. (not palette)
$00A3 - Changes once for everytime Tweeter jumps


$00AD - Is key held? Key appears above head even if thrown, but then not chased.
* $0030 - Bonus chance middle card
......00 - no
......01 - yes
$00AE - Item in hand height (used for different character sizes?)


$00B9 - Current time left to use Pidget's carpet
* $0031 - Bonus chance right card
$00BA - Screen speed moving left and right


$00C7 - Character's status
* $00BA - Screen speed moving left and right


====Button Related====
* $0100 - (screen hold?)


$00F5 - Button pressed (Controller 1)
* $0415 - the rising of the heart
$00F6 - Button pressed (Controller 2)
* $0416 - Height of whale's spout after peaking.
$00F7 - Button held (Controller 1)
>>>>>>>>>>  Directional Pad
......*0 - no movement
......*1 - Right
......*2 - Left
......*3 - Left + Right
......*4 - Down
......*5 - Down + Right
......*6 - Down + Left
......*7 - Down + Left + Right
......*8 - Up
......*9 - Up + Right
......*A - Up + Left
......*B - Up + Left + Right
......*C - Up + Down
......*D - Up + Down + Right
......*E - Up + Down + Left
......*F - Up + Down + Left + Right
>>>>>>>>>>  Buttons
......0* - not pressed
......1* - Start
......2* - Select
......3* - Start + Select
......4* - B
......5* - Start + B
......6* - Select + B
......7* - Start + Select + B
......8* - A
......9* - Start + A
......A* - Select + A
......B* - Start + Select + A
......C* - A + B
......D* - Start + A + B
......E* - Select + A + B
......F* - Start + Select + A + B
$00F8 - Button held (Controller 2)


$0100 - (screen hold?)
* $0456 - Current time left Hawkmouth (before Wart) is open


$0415 - the rising of the heart
* $04EC - Level Transition.
$0416 - Height of whale's spout after peaking.
00 - normal game play
01 - begin the same level and area again (like dying revive)
02 - game over
03 - end level, go to bonus game
04 - warp


$0456 - Current time left Hawkmouth (before Wart) is open
* $06F6 - Character growing or shrinking


====Enemy HP====


$0465 - Enemy 5's health
* $0211 + $0215 = Slot machine Slot #1 (only during slot game)
$0466 - Enemy 4's health
* $0219 + $021D = Slot machine Slot #2 (only during slot game)
$0467 - Enemy 3's health
* $0221 + $0225 = Slot machine Slot #3 (only during slot game)
$0468 - Enemy 2's health
9, 9 = Star
$0469 - Enemy 1's health
1, 3 = Shy Guy
11, 11 = Radish
5, 7 = Cherry


$0471 - look into
==Button Related==


$0484 - look into
* $00F5 - Button pressed (Controller 1)
* $00F6 - Button pressed (Controller 2)
* $00F7 - Button held (Controller 1)
* $00F8 - Button held (Controller 2)


$04B4 - Something to do with the Hawkmouth opening and closing
Directional Pad
*0 - no movement
*1 - Right
*2 - Left
*3 - Left + Right
*4 - Down
*5 - Down + Right
*6 - Down + Left
*7 - Down + Left + Right
*8 - Up
*9 - Up + Right
*A - Up + Left
*B - Up + Left + Right
*C - Up + Down
*D - Up + Down + Right
*E - Up + Down + Left
*F - Up + Down + Left + Right


$04AD - Current number of enemies defeated to grab a heart.
Buttons
0* - not pressed
1* - Start
2* - Select
3* - Start + Select
4* - B
5* - Start + B
6* - Select + B
7* - Start + Select + B
8* - A
9* - Start + A
A* - Select + A
B* - Start + Select + A
C* - A + B
D* - Start + A + B
E* - Select + A + B
F* - Start + Select + A + B


$04B0 - Has Key been used on lock? If yes, then it won't reappear.
==Sprite Flags==
......00 - no
......01 - yes


$04B4 - How wide Hawkmouth is open
* $04B4 - Something to do with the Hawkmouth opening and closing
$04B5 - Has the Crystal been obtained? If yes, effect will last while in area.
......00 - no
......01 - yes
$04B6 - look into


$04BE - Time counts up for how long the door takes to open
* $04AD - Current number of enemies defeated to grab a heart.


$04C2 - Current life in the life meter
* $04B0 - Has Key been used on lock?
......0F - One heart
00 - no
......1F - Two hearts
01 - yes - If yes, then it won't reappear.
......2F - Three hearts
......3F - Four hearts


$04C3 - Number of bars in the life meter (for visual purposes only)
* $04B4 - How wide Hawkmouth is open
......FF - One bar (doesn't work very well)
* $04B5 - Has the Crystal been obtained? If yes, effect will last while in area.
......00 - Two bars (default)
00 - no
......01 - Three bars
01 - yes
......02 - Four bars
* $04B6 - look into
$04C4 - Amount of time left for the screen to shake after POW
$04C5 - Height to raise and lower the "level" for shake
$04C6 - Amount of time left for bomb flash in background


$04CA - Amount of time to build up to charged jump
* $04BD - Time counts up for how long the door takes to open


$04E0 - Current Starman time length left
* $04C4 - Amount of time left for the screen to shake after POW
* $04C5 - Height to raise and lower the "level" for shake
* $04C6 - Amount of time left for bomb flash in background


$04E7 - Area to regenerate
* $04CA - Amount of time to build up to charged jump
$04E8 - Sub-area to regenerate
$04E9 - Page to regenerate


$04EC - I can't describe this one.
* $04E0 - Current Starman time length left
......00 - normal game play
......01 - begin the same level and area again (like dying revive)
......02 - game over
......03 - end level, go to bonus game
......04 - warp
$04ED - Current number of lives


====Mushroom Flags====
==Regeneration properties==


$04FB - Has First Mushroom been pulled? If yes, then it won't reappear.
* $04E7 - Area
......00 - no
* $04E8 - Sub-area
......01 - yes
* $04E9 - Page
$04FC - Has Second Mushroom been pulled? If yes, then it won't reappear.
......00 - no
......01 - yes


$04FF - Current amount of time left from the stop watch.
==Mushroom Flags==


$051D - look into
* $04FB - Has First Mushroom been pulled? If yes, then it won't reappear.
00 - no
01 - yes
* $04FC - Has Second Mushroom been pulled? If yes, then it won't reappear.
00 - no
01 - yes
* $0620 - Has 1-up been pulled?
00 - no
01 - yes - If yes, then it won't reappear.
 
===Subspace Related Properties===
 
* $0621 - Number of times leaving Subspace after grabbing a coin
00 - 1st chance to grab coins
01 - 2nd chance to grab coins
02 - No more chances, get vegetables.


$0521 - look into
* $0628 - In subspace?
00 - no
02 - yes (doesn't work for vertical areas)
* $0629 - Possible subspace offset


====Level in Memory====
==Level in Memory==


$0531 - Current level loaded
$0531 - Current level loaded
......00 - 1-1
00 - 1-1
......01 - 1-2
01 - 1-2
......02 - 1-3
02 - 1-3
......03 - 2-1
03 - 2-1
......04 - 2-2
04 - 2-2
......05 - 2-3
05 - 2-3
......06 - 3-1
06 - 3-1
......07 - 3-2
07 - 3-2
......08 - 3-3
08 - 3-3
......09 - 4-1
09 - 4-1
......0A - 4-2
0A - 4-2
......0B - 4-3
0B - 4-3
......0C - 5-1
0C - 5-1
......0D - 5-2
0D - 5-2
......0E - 5-3
0E - 5-3
......0F - 6-1
0F - 6-1
......10 - 6-2
10 - 6-2
......11 - 6-3
11 - 6-3
......12 - 7-1
12 - 7-1
......13 - 7-2
13 - 7-2
 
==Character Properties==
 
* $0546 - Pickup Speed Animation 1
* $0547 - Pickup Speed Animation 2
* $0548 - Pickup Speed Animation 3
* $0549 - Pickup Speed Animation 4
* $054A - Pickup Speed Animation 5
* $054B - Pickup Speed Animation 6
 
* $054D - Standing Jump Height
* $054E - Crouching Power Jump Height
 
* $0550 - Running Jump Height
* $0551 - Running Jump Height while carrying object
 
* $0553 - Float Timer (set to 0 for everyone but Princess)
 
* $0555 - Character's Jumping physics?
 
==Music and Sound Properties==
 
* $05EE - Current music track?
* $05EF - Current music track?
 
* $0600 - Loads the current song track
* $0601 - Plays a sound effect
* $0602 - Plays a sound effect
* $0603 - Plays a small clip of music (and also for ending sequence)
* $0604 - Character's sound effects
* $0605 - POW sound effects
* $0606 - Stores sound effect from $0603 played
* $0607 - Stores sound effect from $0602 played
* $0608 - Stores sound effect from $0601 played
* $0609 - Stores music track from $0600 played
 
* $0612 - Current music tempo
 
==World Properties==
 
* $0635 - Current World number (loads characteristics of world such as Ice)
 
===Graphics Tileset===


$0532 - look into<br>
* $06F7 - Current Level Tileset (1st half of the right Table)
$0533 - look into<br>
10 - Grass
12 - Desert
14 - Sky
16 - Wart's Palace?
* $06F8 - Current Cycling Sprite Tileset (2nd half of the right Table)
* $06F9 - Current Character (Appearance, not stats) (1st quarter of left Table)
00 - Large Mario
01 - Large Luigi
02 - Large Princess
03 - Large Toad
04 - Small Mario
05 - Small Luigi
06 - Small Princess
07 - Small Toad
* $06FA - Current standard sprites (Snifits, Hawkmouth, etc.) (2nd quarter of left Table)
* $06FB - Current standard sprites (1-Up, Birdo, etc.) (3rd quarter of left Table)
* $06FC - Current changeable sprites (Ostro, Pidget, Pokey, etc.) (4th quarter of left Table)
* $06FD - Current animation of $06F8 (Cycling sprites)


$0544 - look into<br>
===Level Layout===
$0545 - look into<br>


====Character Properties====
* $0700 ~ $07FF - Subspace and jars
* $6000 - $695F - Currently loaded level (Almost half the SRAM)


$0546 - Pickup Speed Animation 1
===Stuff posted by ACMLM on rustedmagick forums in 2002===
$0547 - Pickup Speed Animation 2
<pre>SMB2's music ROM bank: ($8000-FFFF, Addresses not counting header)
$0548 - Pickup Speed Animation 3
$0549 - Pickup Speed Animation 4
$054A - Pickup Speed Animation 5
$054B - Pickup Speed Animation 6


$054D - Standing Jump Height
----------
$054E - Crouching Power Jump Height
$8000-8119 = ?? (contains data such as the jump sound, climbing sound, falling sound (in 1-1))
$811A-8137 = Mushroom sound (notes in reverse order)
$8138-818E = ??
$818F-8196 = Pointers to sound effects
$8197-828D = Sound effects
$828E-8746 = ?? (must be the code that generates music from the data)
$8747-875E = Note frequency data (base scale)


$0550 - Running Jump Height
$875F-8EFF = unused
$0551 - Running Jump Height while carrying object


$0553 - Float Timer (set to 0 for everyone but Princess)
$8F00-8FB2 = Note length tables
$8FB3-8FFF = unused (can be used to add note length tables)


$0545 - look into
$9000-9029 = Music part pointers
$902A-9102 = Music part headers
$9103-910B = Pointers to first music part (for each song)
$910C-9114 = Pointers to last music part
$9115-911D = Pointers to looping music part
$911E-A18D = Music data
$A18E-A3EE = Instrument sound data (square pulse property bits)


$0555 - Character's Jumping physics?
$A3EF-BFFF = unused
----------


$05C5 - Current number of Continues
Pointers to
first/last/loop part of:
$9103-910C-9115 = Normal level    ($10-16-11)
$9104-910D-9116 = Character select ($07-0F-08)
$9105-910E-9117 = Underground      ($29-29-29)
$9106-910F-9118 = Boss            ($17-17-17)
$9107-9110-9119 = Star            ($18-18-18)
$9108-9111-911A = Sub-space        ($1E-22-1E)
$9109-9112-911B = Wart            ($19-19-19)
$910A-9113-911C = Intro            ($1A-1D-00)
$910B-9114-911D = Ending          ($23-28-28)
--> pointing from $9000


====Music and Sound Properties====
$9000-9029 = Music part pointers
Default:
$9000      = Bonus (get mushroom) ($99)
$9001      = Boss beaten          ($8E)
$9002      = Bonus 2 (get ball)  ($84)
$9003      = Die, lose            ($A4)
$9004      = Game Over            ($89)
$9005      = Same as $9002        ($84)
$9006      = Same as $9000        ($99)
$9007-900F = Character select    ($2A,30,36,30,3C,42,A9,9E,93)
$9010-9016 = Normal level        ($48,4E,54,5A,54,60,66)
$9017      = Boss                ($72)
$9018      = Star                ($78)
$9019      = Wart                ($7E)
$901A-901D = Intro                ($B5,AF,BB,C1)
$901E-9022 = Subspace            ($C7,CD,D3,CD,D9)
$9023-9028 = Ending              ($DF,EB,E5,F7,F1,FD)
$9029      = Underground          ($6C)
--> pointing from $9000


$05EE - Current music track?
Music part headers:
$05EF - Current music track?
$902A-902F \
$9030-9035 |
$9036-903B | Character select
$903C-9041 | (part 1)
$9042-9047 /
$9048-904D \
$904E-9053 |
$9054-9059 | Normal level
$905A-905F |
$9060-9065 |
$9066-906B /
$906C-9071 = Underground
$9072-9077 = Boss
$9078-907D = Star
$907E-9083 = Wart
$9084-9088 = Bonus 2
$9089-908D = Game Over
$908E-9092 = Boss beaten
$9093-9098 = Character select (2)
$9099-909D = Bonus
$909E-90A3 = Character select (3)
$90A4-90A8 = Die, lose
$90A9-90AE = Character select (4)
$90AF-90B4 \
$90B5-90BA | Intro
$90BB-90C0 |
$90C1-90C6 /
$90C7-90CC \
$90CD-90D2 | Subspace
$90D3-90D8 |
$90D9-90DE /
$90DF-90E4 \
$90E5-90EA |
$90EB-90F0 | Ending
$90F1-90F6 |
$90F7-90FC |
$90FD-9102 /


$0600 - Loads the current song track
Music header bytes:
$0601 - Plays a sound effect
00    = Pointer to note length table (points from $8F00)
$0602 - Plays a sound effect
01-02 = Pointer for square 1 channel (main pointer)
$0603 - Plays a small clip of music (and also for ending sequence)
03    = Data offset for triangle (from main address)
$0604 - Character's sound effects
04    = Data offset for square 2
$0605 - POW sound effects
05    = Data offset for noise
$0606 - Stores sound effect from $0603 played
$0607 - Stores sound effect from $0602 played
$0608 - Stores sound effect from $0601 played
$0609 - Stores music track from $0600 played


$0612 - Current music tempo
Note length tables:
$8F00-8F0C = $03,03,04,04,06,09,08,08,0C,12,18,24,30
$8F0D-8F1A = $03,04,05,04,07,0A,09,0A,0E,15,1C,2A,38,0B
$8F1B-8F27 = $04,04,05,06,08,0C,0B,0A,10,18,20,30,40
$8F28-8F36 = $04,05,06,06,09,0D,0C,0C,12,1B,24,36,48,0E,03
$8F37-8F43 = $05,05,07,06,0A,0F,0D,0E,14,1E,28,3C,50
$8F44-8F51 = $05,06,07,08,0B,10,0F,0E,16,21,2C,42,58,11
$8F52-8F5f = $06,06,08,08,0C,12,10,10,18,24,30,48,60,02
$8F50-8F6D = $06,07,09,08,0D,13,11,12,1A,27,34,4E,68,14
$8F6E-8F7C = $07,07,09,0A,0E,15,13,12,1C,2A,38,54,70,03,04
$8F7D-8F8A = $07,08,0A,0A,0F,16,14,14,1E,2D,3C,5A,78,17
$8F8B-8F97 = $08,08,0B,0A,10,18,15,16,20,30,40,60,80
$8F98-8FA5 = $08,09,0B,0C,11,19,15,16,22,33,44,60,88,1A
$8FA6-8FB2 = $09,09,0C,0C,12,1B,18,18,24,36,48,6C,90


====Subspace Related Properites====
Music data:
DF-$911E = Ending (1)
E5-$919C = Ending (2)
F7-$920D = Ending (5)
EB-$9280 = Ending (3)
F1-$92F2 = Ending (4)
FD-$9376 = Ending (6)
78-$9469 = Star
6C-$94BD = Underground
C7-$9550 = Subspace (1)
CD-$95A3 = Subspace (2)
D3-$95E0 = Subspace (3)
D9-$960F = Subspace (4)
B5-$963E = Intro (2)
AF-$96A7 = Intro (1)
BB-$9794 = Intro (3)
C1-$9878 = Intro (4)
2A-$98AD = Character select (1)
30-$995C = Character select (2)
36-$999A = Character select (3)
3C-$999E = Character select (4)
42-$9A26 = Character select (5)
A9-$9A5D = Character select (8)
9E-$9ADF = Character select (7)
93-$9B93 = Character select (6)
48-$9BD4 = Normal level (1)
4E-$9C20 = Normal level (2)
54-$9CF9 = Normal level (3)
5A-$9D3F = Normal level (4)
60-$9E00 = Normal level (5)
66-$9E4D = Normal level (6)
72-$9F1C = Boss
7E-$9FC7 = Wart
99-$A0BB = Bonus
89-$A0CE = Game Over
8E-$A0F2 = Boss Beaten
84-$A148 = Bonus 2
A4-$A16F = Die, lose


$0620 - Has 1-up been pulled? If yes, then it won't reappear.
$818F-8196 = Sound effect pointers
......00 - no
......01 - yes
$0621 - Number of times leaving Subspace aftering grabbing a coin
......00 - 1st chance to grab coins
......01 - 2nd chance to grab coins
......02 - No more chances, get vegetables.


$0628 - In subspace?
$8197-81B5 = Door appearing
......00 - no
$81B6-81DC = Throwing item
......02 - yes (doesn't work for vertical areas)
$81DD-81FB = Birdo spitting
$0629 - look into
$81FC-8202 = Selecting, getting cherry/heart
$8203-8219 = Defeating enemy
$821A-8233 = Clock ticking
$8234-8265 = Hawkmouth opening
$8266-828D = 1UP sound


====Collectable Counts====
$8397:B9 03 91  LDA $9103,Y  --Load the start part pointer
$839A:8D EE 05  STA $05EE
$839D:B9 0C 91  LDA $910C,Y  --Load the end part pointer
$83A0:18        CLC
$83A1:69 02    ADC #$02
$83A3:8D EF 05  STA $05EF
$83A6:B9 15 91  LDA $9115,Y  --Load the loop part pointer
$83A9:8D F0 05  STA $05F0


$062A - Current number of cherries
And some old info from 2 years ago: (addresses without header, again)
$062B - Current number of coins pulled in Subspace (Slot machine currency)
$062C - Current number of BIG vegetables pulled for stop watch


====World Properites====
$4C3A -- Panser's spitting time
$4C64 -- Grey panser's spitting direction


$0635 - Current World number (loads characteristics of world such as Ice)
$4D43 -- Jump height on coming out of jars


$06F2 - !!!!!
$4F98 -- Birdo's jump height
$4FB3 -- Birdo's spitting time
$4FC6 -- Birdo's speed (right)
$4FCC -- Birdo's speed (left)
$4FDA -- Birdo's spitting sound


$06F4 - look into!
$555C -- Snifit's jump height
$5593 -- Snifit's spitting time


$06F6 - Character growing or shrinking
$6161 -- Clawglip's rock throwing time
$61C5 -- Rock speed


====Graphics Tileset====
$65A0 -- Mouser's jump height
$65AC -- Mouser's bomb holding time
$65E4 -- Mouser's bomb throwing height
$65EB -- Time before bomb explosion
$65EF -- Mouser's bomb throwing speed


$06F7 - Current Level Tileset (1st half of the right Table)
$68AB -- Triclyde's spitting sound
$06F8 - Current Cycling Sprite Tileset (2nd half of the right Table)
$06F9 - Current Character (Appearance,not stats) (1st quarter of left Table)
......00 - Large Mario
......01 - Large Luigi
......02 - Large Princess
......03 - Large Toad
......04 - Small Mario
......05 - Small Luigi
......06 - Small Princess
......07 - Small Toad
$06FA - Current standard sprites (Snifits, Hawkmouth, etc.) (2nd quarter of left Table)
$06FB - Current standard sprites (1-Up, Birdo, etc.) (3rd quarter of left Table)
$06FC - Current changable sprites (Ostro, Pidget, Pokey, etc.) (4th quarter of left Table)
$06FD - Current animation of $06F8 (Cycling sprites)


====Level Layout (Jars/Subspace)====
$720D -- Wart's speed (left)
$7213 -- Wart's speed (right)</pre>


$0700 ~ $07FF - Subspace and jars<br>
=References=


$14CA - Timer for crouch jump power (0 - 3C)<br>
http://www.tekhacks.net/forum - lost when forum was removed (recovered by internet archive)
http://board.acmlm.org - lost when board was remade (recovered by internet archive)
http://bmf.rustedmagick.com/


====Level Layout (Area)====
{{Internal Data|game=Super Mario Bros. 2}}
$6000 ~ $695F - Currently loaded level (Almost half the SRAM)

Latest revision as of 21:16, 6 September 2024

Chip tiny.png The following article is a RAM map for Super Mario Bros. 2 (NES).

RAM

Counters

  • $04ED - Current number of lives
  • $05C5 - Current number of Continues
  • $062A - Current number of cherries
  • $062B - Current number of coins pulled in Subspace (Slot machine currency)
  • $062C - Current number of BIG vegetables pulled for stop watch
  • $062D - Number of levels finished as Mario
  • $062E - Number of levels finished as Princess
  • $062F - Number of levels finished as Toad
  • $0630 - Number of levels finished as Luigi

Sprite Related

  • $0014 - Page of main character's X position
  • $001E - Page of main character's Y position
  • $0638 - Player's Overalls Palette
  • $0639 - Player's Cap Palette
  • $063A - Player's Skin Palette

Position of sprites

X position on page

  • $0028 - main character
  • $0029 - enemy 5
  • $002A - enemy 4
  • $002B - enemy 3
  • $002C - enemy 2
  • $002D - enemy 1

Y position on page

  • $0033 - enemy 5
  • $0034 - enemy 4
  • $0035 - enemy 3
  • $0036 - enemy 2
  • $0037 - enemy 1

Speed of sprites (left/right)

  • $003C - Main character
  • $003D - Enemy 5
  • $003E - Enemy 4
  • $003F - Enemy 3
  • $0040 - Enemy 2
  • $0041 - Enemy 1

Jumping Physics

  • $0046 - main character
  • $0047 - enemy 5
  • $0048 - enemy 4
  • $0049 - enemy 3
  • $004A - Enemy 2
  • $004B - Enemy 1
  • $0050 - Is character on a vine?
00 - no
01 - yes

Misc. sprite addresses

  • $0051 - Enemy 5
  • $0052 - Enemy 4
  • $0053 - Enemy 3
  • $0054 - Enemy 2
  • $0055 - Enemy 1
00 - Invisible
01 - Visible
02 - Dead
  • $005A - Enemy 5's relation to main character/landscape
  • $005B - Enemy 4's relation to main character/landscape
  • $005C - Enemy 3's relation to main character/landscape
  • $005D - Enemy 2's relation to main character/landscape
  • $005E - Enemy 1's relation to main character/landscape
00 - not on the ground (could be jumping or being thrown)
04 - walking
05 - turn left because object blocks path
06 - turn right because object blocks path
20 - carrying main character when reaching an edge to turn around
24 - carrying main character with same speed as movement

Sprite's palette, mirroring, etc.

  • $0065 - Enemy 5
  • $0066 - Enemy 4
  • $0067 - Enemy 3
  • $0068 - Enemy 2
  • $0069 - Enemy 1

Sprite IDs

  • $008F - Character selected (appearance only, until defeated, then stats as well)
00 - Mario
01 - Princess
02 - Toad
03 - Luigi
  • $0090 - Enemy 5
  • $0091 - Enemy 4
  • $0092 - Enemy 3
  • $0093 - Enemy 2
  • $0094 - Enemy 1
  • $0096 - Item pulled up from ground
  • $0099 - Graphics for when main character jumps
  • $009A - Drop through
  • $009B - Graphics for when main character walks
  • $00C7 - Character's status

Sprite HP

  • $0465 - Enemy 5
  • $0466 - Enemy 4
  • $0467 - Enemy 3
  • $0468 - Enemy 2
  • $0469 - Enemy 1

Main character

  • $04C2 - Current life in the life meter
0F - One heart
1F - Two hearts
2F - Three hearts
3F - Four hearts
  • $04C3 - Number of bars in the life meter (for visual purposes only)
FF - One bar (doesn't work very well)
00 - Two bars (default)
01 - Three bars
02 - Four bars

Timers

  • $0010 - General 256 frames framerule counter
  • $0085 - Amount of time left until main character becomes vulnerable
  • $0086 - Amount of time left for unknown
  • $0087 - Amount of time left before Bob Omb 5 explodes
  • $0088 - Amount of time left before Bob Omb 4 explodes
  • $0089 - Amount of time left before Bob Omb 3 explodes
  • $008A - Amount of time left before Bob Omb 2 explodes
  • $008B - Amount of time left before Bob Omb 1 explodes
  • $008C - Amount of time left before Bomb 1 explodes
  • $008D - Amount of time left before Bomb 2 explodes
  • $008E - Amount of time left before Bomb 3 explodes
  • $00B9 - Current time left to use Pidget's carpet
  • $04B7 - Amount of time left in subspace
  • $04E0 - Amount of time left as star Mario
  • $04FF - Current amount of time left from the stop watch
  • $14CA - Timer for crouch jump power (0 - 3C)

Item flags

  • $009C - Holding an item?
00 = no
01 = yes
  • $009D - Character's mirroring, etc. (not palette)
  • $00A3 - Changes once for everytime Tweeter jumps
  • $00AD - Is key held?
00 - no
01 - yes -  Key appears above head even if thrown, but then not chased.
  • $00AE - Item in hand height (used for different character sizes?)

Misc.

  • $002F - Bonus chance left card
  • $0030 - Bonus chance middle card
  • $0031 - Bonus chance right card
  • $00BA - Screen speed moving left and right
  • $0100 - (screen hold?)
  • $0415 - the rising of the heart
  • $0416 - Height of whale's spout after peaking.
  • $0456 - Current time left Hawkmouth (before Wart) is open
  • $04EC - Level Transition.
00 - normal game play
01 - begin the same level and area again (like dying revive)
02 - game over
03 - end level, go to bonus game
04 - warp
  • $06F6 - Character growing or shrinking


  • $0211 + $0215 = Slot machine Slot #1 (only during slot game)
  • $0219 + $021D = Slot machine Slot #2 (only during slot game)
  • $0221 + $0225 = Slot machine Slot #3 (only during slot game)
9, 9 = Star
1, 3 = Shy Guy
11, 11 = Radish
5, 7 = Cherry

Button Related

  • $00F5 - Button pressed (Controller 1)
  • $00F6 - Button pressed (Controller 2)
  • $00F7 - Button held (Controller 1)
  • $00F8 - Button held (Controller 2)
Directional Pad
*0 - no movement
*1 - Right
*2 - Left
*3 - Left + Right
*4 - Down
*5 - Down + Right
*6 - Down + Left
*7 - Down + Left + Right
*8 - Up
*9 - Up + Right
*A - Up + Left
*B - Up + Left + Right
*C - Up + Down
*D - Up + Down + Right
*E - Up + Down + Left
*F - Up + Down + Left + Right

Buttons
0* - not pressed
1* - Start
2* - Select
3* - Start + Select
4* - B
5* - Start + B
6* - Select + B
7* - Start + Select + B
8* - A
9* - Start + A
A* - Select + A
B* - Start + Select + A
C* - A + B
D* - Start + A + B
E* - Select + A + B
F* - Start + Select + A + B

Sprite Flags

  • $04B4 - Something to do with the Hawkmouth opening and closing
  • $04AD - Current number of enemies defeated to grab a heart.
  • $04B0 - Has Key been used on lock?
00 - no
01 - yes - If yes, then it won't reappear.
  • $04B4 - How wide Hawkmouth is open
  • $04B5 - Has the Crystal been obtained? If yes, effect will last while in area.
00 - no
01 - yes
  • $04B6 - look into
  • $04BD - Time counts up for how long the door takes to open
  • $04C4 - Amount of time left for the screen to shake after POW
  • $04C5 - Height to raise and lower the "level" for shake
  • $04C6 - Amount of time left for bomb flash in background
  • $04CA - Amount of time to build up to charged jump
  • $04E0 - Current Starman time length left

Regeneration properties

  • $04E7 - Area
  • $04E8 - Sub-area
  • $04E9 - Page

Mushroom Flags

  • $04FB - Has First Mushroom been pulled? If yes, then it won't reappear.
00 - no
01 - yes
  • $04FC - Has Second Mushroom been pulled? If yes, then it won't reappear.
00 - no
01 - yes
  • $0620 - Has 1-up been pulled?
00 - no
01 - yes - If yes, then it won't reappear.

Subspace Related Properties

  • $0621 - Number of times leaving Subspace after grabbing a coin
00 - 1st chance to grab coins
01 - 2nd chance to grab coins
02 - No more chances, get vegetables.
  • $0628 - In subspace?
00 - no
02 - yes (doesn't work for vertical areas)
  • $0629 - Possible subspace offset

Level in Memory

$0531 - Current level loaded 

00 - 1-1
01 - 1-2
02 - 1-3
03 - 2-1
04 - 2-2
05 - 2-3
06 - 3-1
07 - 3-2
08 - 3-3
09 - 4-1
0A - 4-2
0B - 4-3
0C - 5-1
0D - 5-2
0E - 5-3
0F - 6-1
10 - 6-2
11 - 6-3
12 - 7-1
13 - 7-2

Character Properties

  • $0546 - Pickup Speed Animation 1
  • $0547 - Pickup Speed Animation 2
  • $0548 - Pickup Speed Animation 3
  • $0549 - Pickup Speed Animation 4
  • $054A - Pickup Speed Animation 5
  • $054B - Pickup Speed Animation 6
  • $054D - Standing Jump Height
  • $054E - Crouching Power Jump Height
  • $0550 - Running Jump Height
  • $0551 - Running Jump Height while carrying object
  • $0553 - Float Timer (set to 0 for everyone but Princess)
  • $0555 - Character's Jumping physics?

Music and Sound Properties

  • $05EE - Current music track?
  • $05EF - Current music track?
  • $0600 - Loads the current song track
  • $0601 - Plays a sound effect
  • $0602 - Plays a sound effect
  • $0603 - Plays a small clip of music (and also for ending sequence)
  • $0604 - Character's sound effects
  • $0605 - POW sound effects
  • $0606 - Stores sound effect from $0603 played
  • $0607 - Stores sound effect from $0602 played
  • $0608 - Stores sound effect from $0601 played
  • $0609 - Stores music track from $0600 played
  • $0612 - Current music tempo

World Properties

  • $0635 - Current World number (loads characteristics of world such as Ice)

Graphics Tileset

  • $06F7 - Current Level Tileset (1st half of the right Table)
10 - Grass
12 - Desert
14 - Sky
16 - Wart's Palace?
  • $06F8 - Current Cycling Sprite Tileset (2nd half of the right Table)
  • $06F9 - Current Character (Appearance, not stats) (1st quarter of left Table)
00 - Large Mario
01 - Large Luigi
02 - Large Princess
03 - Large Toad
04 - Small Mario
05 - Small Luigi
06 - Small Princess
07 - Small Toad
  • $06FA - Current standard sprites (Snifits, Hawkmouth, etc.) (2nd quarter of left Table)
  • $06FB - Current standard sprites (1-Up, Birdo, etc.) (3rd quarter of left Table)
  • $06FC - Current changeable sprites (Ostro, Pidget, Pokey, etc.) (4th quarter of left Table)
  • $06FD - Current animation of $06F8 (Cycling sprites)

Level Layout

  • $0700 ~ $07FF - Subspace and jars
  • $6000 - $695F - Currently loaded level (Almost half the SRAM)

Stuff posted by ACMLM on rustedmagick forums in 2002

SMB2's music ROM bank: ($8000-FFFF, Addresses not counting header)

----------
$8000-8119 = ?? (contains data such as the jump sound, climbing sound, falling sound (in 1-1))
$811A-8137 = Mushroom sound (notes in reverse order)
$8138-818E = ??
$818F-8196 = Pointers to sound effects
$8197-828D = Sound effects
$828E-8746 = ?? (must be the code that generates music from the data)
$8747-875E = Note frequency data (base scale)

$875F-8EFF = unused

$8F00-8FB2 = Note length tables
$8FB3-8FFF = unused (can be used to add note length tables)

$9000-9029 = Music part pointers
$902A-9102 = Music part headers
$9103-910B = Pointers to first music part (for each song)
$910C-9114 = Pointers to last music part
$9115-911D = Pointers to looping music part
$911E-A18D = Music data
$A18E-A3EE = Instrument sound data (square pulse property bits)

$A3EF-BFFF = unused
----------

Pointers to
first/last/loop part of:
$9103-910C-9115 = Normal level     ($10-16-11)
$9104-910D-9116 = Character select ($07-0F-08)
$9105-910E-9117 = Underground      ($29-29-29)
$9106-910F-9118 = Boss             ($17-17-17)
$9107-9110-9119 = Star             ($18-18-18)
$9108-9111-911A = Sub-space        ($1E-22-1E)
$9109-9112-911B = Wart             ($19-19-19)
$910A-9113-911C = Intro            ($1A-1D-00)
$910B-9114-911D = Ending           ($23-28-28)
--> pointing from $9000

$9000-9029 = Music part pointers
Default:
$9000      = Bonus (get mushroom) ($99)
$9001      = Boss beaten          ($8E)
$9002      = Bonus 2 (get ball)   ($84)
$9003      = Die, lose            ($A4)
$9004      = Game Over            ($89)
$9005      = Same as $9002        ($84)
$9006      = Same as $9000        ($99)
$9007-900F = Character select     ($2A,30,36,30,3C,42,A9,9E,93)
$9010-9016 = Normal level         ($48,4E,54,5A,54,60,66)
$9017      = Boss                 ($72)
$9018      = Star                 ($78)
$9019      = Wart                 ($7E)
$901A-901D = Intro                ($B5,AF,BB,C1)
$901E-9022 = Subspace             ($C7,CD,D3,CD,D9)
$9023-9028 = Ending               ($DF,EB,E5,F7,F1,FD)
$9029      = Underground          ($6C)
--> pointing from $9000

Music part headers:
$902A-902F \
$9030-9035 |
$9036-903B | Character select
$903C-9041 | (part 1)
$9042-9047 /
$9048-904D \ 
$904E-9053 |
$9054-9059 | Normal level
$905A-905F |
$9060-9065 |
$9066-906B /
$906C-9071 = Underground
$9072-9077 = Boss
$9078-907D = Star
$907E-9083 = Wart
$9084-9088 = Bonus 2
$9089-908D = Game Over
$908E-9092 = Boss beaten
$9093-9098 = Character select (2)
$9099-909D = Bonus
$909E-90A3 = Character select (3)
$90A4-90A8 = Die, lose
$90A9-90AE = Character select (4)
$90AF-90B4 \
$90B5-90BA | Intro
$90BB-90C0 |
$90C1-90C6 /
$90C7-90CC \
$90CD-90D2 | Subspace
$90D3-90D8 |
$90D9-90DE /
$90DF-90E4 \
$90E5-90EA |
$90EB-90F0 | Ending
$90F1-90F6 |
$90F7-90FC |
$90FD-9102 /

Music header bytes:
00    = Pointer to note length table (points from $8F00)
01-02 = Pointer for square 1 channel (main pointer)
03    = Data offset for triangle (from main address)
04    = Data offset for square 2
05    = Data offset for noise

Note length tables:
$8F00-8F0C = $03,03,04,04,06,09,08,08,0C,12,18,24,30
$8F0D-8F1A = $03,04,05,04,07,0A,09,0A,0E,15,1C,2A,38,0B
$8F1B-8F27 = $04,04,05,06,08,0C,0B,0A,10,18,20,30,40
$8F28-8F36 = $04,05,06,06,09,0D,0C,0C,12,1B,24,36,48,0E,03
$8F37-8F43 = $05,05,07,06,0A,0F,0D,0E,14,1E,28,3C,50
$8F44-8F51 = $05,06,07,08,0B,10,0F,0E,16,21,2C,42,58,11
$8F52-8F5f = $06,06,08,08,0C,12,10,10,18,24,30,48,60,02
$8F50-8F6D = $06,07,09,08,0D,13,11,12,1A,27,34,4E,68,14
$8F6E-8F7C = $07,07,09,0A,0E,15,13,12,1C,2A,38,54,70,03,04
$8F7D-8F8A = $07,08,0A,0A,0F,16,14,14,1E,2D,3C,5A,78,17
$8F8B-8F97 = $08,08,0B,0A,10,18,15,16,20,30,40,60,80
$8F98-8FA5 = $08,09,0B,0C,11,19,15,16,22,33,44,60,88,1A
$8FA6-8FB2 = $09,09,0C,0C,12,1B,18,18,24,36,48,6C,90

Music data:
DF-$911E = Ending (1)
E5-$919C = Ending (2)
F7-$920D = Ending (5)
EB-$9280 = Ending (3)
F1-$92F2 = Ending (4)
FD-$9376 = Ending (6)
78-$9469 = Star
6C-$94BD = Underground
C7-$9550 = Subspace (1)
CD-$95A3 = Subspace (2)
D3-$95E0 = Subspace (3)
D9-$960F = Subspace (4)
B5-$963E = Intro (2)
AF-$96A7 = Intro (1)
BB-$9794 = Intro (3)
C1-$9878 = Intro (4)
2A-$98AD = Character select (1)
30-$995C = Character select (2)
36-$999A = Character select (3)
3C-$999E = Character select (4)
42-$9A26 = Character select (5)
A9-$9A5D = Character select (8)
9E-$9ADF = Character select (7)
93-$9B93 = Character select (6)
48-$9BD4 = Normal level (1)
4E-$9C20 = Normal level (2)
54-$9CF9 = Normal level (3)
5A-$9D3F = Normal level (4)
60-$9E00 = Normal level (5)
66-$9E4D = Normal level (6)
72-$9F1C = Boss
7E-$9FC7 = Wart
99-$A0BB = Bonus
89-$A0CE = Game Over
8E-$A0F2 = Boss Beaten
84-$A148 = Bonus 2
A4-$A16F = Die, lose

$818F-8196 = Sound effect pointers

$8197-81B5 = Door appearing
$81B6-81DC = Throwing item
$81DD-81FB = Birdo spitting
$81FC-8202 = Selecting, getting cherry/heart
$8203-8219 = Defeating enemy
$821A-8233 = Clock ticking
$8234-8265 = Hawkmouth opening
$8266-828D = 1UP sound

$8397:B9 03 91  LDA $9103,Y  --Load the start part pointer
$839A:8D EE 05  STA $05EE
$839D:B9 0C 91  LDA $910C,Y  --Load the end part pointer
$83A0:18        CLC
$83A1:69 02     ADC #$02
$83A3:8D EF 05  STA $05EF
$83A6:B9 15 91  LDA $9115,Y  --Load the loop part pointer
$83A9:8D F0 05  STA $05F0

And some old info from 2 years ago: (addresses without header, again)

$4C3A -- Panser's spitting time
$4C64 -- Grey panser's spitting direction

$4D43 -- Jump height on coming out of jars

$4F98 -- Birdo's jump height
$4FB3 -- Birdo's spitting time
$4FC6 -- Birdo's speed (right)
$4FCC -- Birdo's speed (left)
$4FDA -- Birdo's spitting sound

$555C -- Snifit's jump height
$5593 -- Snifit's spitting time

$6161 -- Clawglip's rock throwing time
$61C5 -- Rock speed

$65A0 -- Mouser's jump height
$65AC -- Mouser's bomb holding time
$65E4 -- Mouser's bomb throwing height
$65EB -- Time before bomb explosion
$65EF -- Mouser's bomb throwing speed

$68AB -- Triclyde's spitting sound

$720D -- Wart's speed (left)
$7213 -- Wart's speed (right)

References

http://www.tekhacks.net/forum - lost when forum was removed (recovered by internet archive) http://board.acmlm.org - lost when board was remade (recovered by internet archive) http://bmf.rustedmagick.com/

Internal Data for Super Mario Bros. 2
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