|
$7E0C44
|
2 bytes |
Misc. |
Previous camera X value used by fuzzy generator |
|
$7E0C46
|
2 bytes |
Misc. |
Flag: Currently active Poochy |
|
$7E0C48
|
2 bytes |
Misc. |
Flag: Currently active bat generation |
|
$7E0C4A
|
2 bytes |
Misc. |
Current generated bat count |
|
$7E0C4C
|
2 bytes |
Misc. |
Flag: Currently active unknown special sprite |
|
$7E0C68
|
2 bytes |
Misc. |
Flag: Currently active Fire Lakitu (at least 1) |
|
$7E0C6A
|
2 bytes |
Misc. |
Flag: Currently active Flutter generation |
|
$7E0C6E
|
2 bytes |
Misc. |
Flag: Currently active Nipper Spore generation |
|
$7E0C70
|
2 bytes |
Misc. |
Flag: Currently active balloon with pokey ball generation |
|
$7E0C72
|
2 bytes |
Misc. |
Flag: Currently active balloon with missile generation |
|
$7E0C74
|
2 bytes |
Misc. |
Flag: Currently active balloon generation |
|
$7E0C76
|
2 bytes |
Misc. |
Flag: Currently active yellow platform generation |
|
$7E0C78
|
2 bytes |
Misc. |
Flag: Currently active Slime Drop generation |
|
$7E0C7C
|
2 bytes |
Misc. |
Flag: Currently active unknown special sprite 3 |
|
$7E0C7E
|
2 bytes |
Misc. |
Flag: Currently active unknown special sprite 4 |
|
$7E0C80
|
2 bytes |
Player Physics |
Tongue X position, relative to Yoshi |
|
$7E0C82
|
2 bytes |
Player Physics |
Tongue Y position, relative to Yoshi |
|
$7E0C98
|
24 bytes |
Sprite Number |
Sprite table, 24 entries, one byte per:
A copy of all sprites' states during camera events.
Used as flags to not despawn sprites during camera events (like stairs) |
|
$7E0CB0
|
2 bytes |
Misc. |
Camera Y offset from shaking (either large or small) |
|
$7E0CB2
|
2 bytes |
Misc. |
Falling wall is on-screen flag. Because the game puts two walls five spaces apart (one for the left and another for the right side), this one prevents the game from having two walls being occupied in the same spot. In addition, they use HDMA to draw their graphics and so two separate walls can't co-exist at the same time due to this reason. |
|
$7E0CCC
|
2 bytes |
Timer |
Damage recoil timer, disables left and right if not zero. |
|
$7E0CEC
|
2 bytes |
Timer |
! switch timer, starts off at $0280, counts down |
|
$7E0CFD
|
2 bytes |
Misc. |
Timer for offset-by-tile level modes
Controls for example moving platforms in 6-4 |
|
$7E0CFF
|
2 bytes |
Misc. |
Amplitude of fuzzy offset-per-tile sinewave |
|
$7E0D01
|
2 bytes |
Misc. |
Positional offset of fuzzy offset-per-tile sinewave |
|
$7E0D03
|
2 bytes |
Timer |
Current time value for fuzzy palette morphing effect |
|
$7E0D05
|
1 byte |
Boss |
Raphael Boss fight rotation value
$00 to $FF (whole loop) |
|
$7E0D09
|
2 bytes |
Misc. |
Background gradient Y scroll, lower part |
|
$7E0D0B
|
2 bytes |
Misc. |
Background gradient Y scroll, upper part |
|
$7E0D0F
|
1 byte |
Misc. |
Message box state:
$00: no message box
$01: init
$03: black box growing (opening)
$05: init message
$07: message fading in (from black)
$09: opened, player reading
$0B: message fading out (to black)
$0D: black box shrinking (closing) |
|
$7E0D19
|
2 bytes |
Misc. |
Message Box: size of transitional black square as it grows |
|
$7E0D21
|
6 bytes |
Misc. |
During stage clear transition/wipe, rectangle mask's screen coordinates:
Word 1: left X (low byte), right X (high byte);
Word 2: top Y
Word 3: bottom Y |
|
$7E0D37
|
2 bytes |
Misc. |
Background wave effect (fuzzy): amplitude of horizontal wave |
|
$7E0D39
|
2 bytes |
Misc. |
Background wave effect (fuzzy): amplitude of vertical wave |
|
$7E0DAE
|
2 bytes |
Timer |
Frame counter for holding up while on ground, used for Baby Mario's animation frame, increments by 2 when holding but then on release decays by halving each frame |
|
$7E0DB0
|
2 bytes |
Timer |
Frame counter for holding down while on ground, used for Baby Mario's animation frame, increments by 2 when holding but then on release decays by halving each frame |
|
$7E0DF9
|
2 bytes |
Misc. |
Amount of wooden planks (sprites 0x5E and 0x5F) running. |
|
$7E0E2F
|
1 byte |
Misc. |
4 Red Toadies: counter of how many have grabbed Baby Mario |
|
$7E0E31
|
1 byte |
Misc. |
4 Red Toadies: counter of how many are currently active/spawned |
|
$7E0E33
|
1 byte |
Misc. |
4 Red Toadies: Currently active (at least one) |
|
$7E0E37
|
16 bytes |
Coordinate |
4 Red Toadies: Each Toadie's X positions (4 total) relative to the 4 Toadies base sprite, one toadie per entry:
Byte 1: Subpixel
Byte 2: Position
Byte 3: Screen #
Byte 4: Spillage from carry add for screen |
|
$7E0E49
|
16 bytes |
Coordinate |
4 Red Toadies: Each Toadie's Y positions (4 total) relative to the 4 Toadies base sprite, one toadie per entry:
Byte 1: Subpixel
Byte 2: Position
Byte 3: Screen #
Byte 4: Spillage from carry add for screen |
|
$7E0FBD
|
2 bytes |
Timer |
Mirror of $701974 (frame counter) only when Green spiked platform (sprites $15F) is active. |
|
$7E0FBF
|
2 bytes |
Timer |
Mirror of $701974 (frame counter) only when Red spiked platform (sprite $160) is active. |
|
$7E105C
|
1 byte |
Boss |
Raphael the Raven: Y coordinate (relative to moon surface) |
|
$7E105D
|
1 byte |
Boss |
Raphael the Raven: X coordinate (relative to wrapping around moon) |
|
$7E105E
|
2 bytes |
Boss |
Bigger Boo: scale
Raphael the Raven $7E105E: how far Yoshi is from Raphael (X coordinate around moon)
Raphael the Raven $7E105F: current AI state ($00 - $14) |
|
$7E1060
|
1 byte |
Timer |
Raphael the Raven: timer value - used to control timings of AI events. Decrements each frame, gets reset to either random values or specific values on state changes. |
|
$7E1062
|
1 byte |
Boss |
Raphael the Raven: Facing - $00 for counterclockwise, $02 for clockwise;
Baby Bowser: hit counter, fight ends when the low byte reaches $03 (or any value from $03 to $82). |
|
$7E1066
|
1 byte |
Boss |
Bigger Boo: flag for taking damage (growing) |
|
$7E1068
|
2 bytes |
Boss |
Big Bowser: Z coordinate (depth) |
|
$7E106C
|
2 bytes |
Boss |
Big Bowser: horizontal position.
Raphael the Raven: Y velocity |
|
$7E1070
|
2 bytes |
Boss |
Big Bowser: index for summoning boulders, increments by 2 each boulder, ending in $0008 in the first summon and $000E in the second. |
|
$7E1074
|
2 bytes |
Boss |
Big Bowser: flag indicating he is being hit by an egg right now, instantly clears |
|
$7E1076
|
2 bytes |
Boss |
Hookbill: graphics scaling value (X axis)
Bowser: damage counter, fight ends at $0007 |
|
$7E1078
|
2 bytes |
Boss |
Hookbill: graphics scaling value (Y axis) |
|
$7E1082
|
2 bytes |
Boss |
Naval Piranha: health, starts with #$0003, dies on #$0000 |
|
$7E10DA
|
2 bytes |
Player Physics |
Debug flag for free Yoshi movement |
|
$7E1109
|
1 byte |
Coordinate |
World Map: Cursor X-position |
|
$7E110A
|
1 byte |
Coordinate |
World Map: Cursor Y-position |
|
$7E110C
|
1 byte |
Coordinate |
World Map: Cursor next X-position to be reached |
|
$7E110D
|
1 byte |
Coordinate |
World Map: Cursor next Y-position to be reached |
|
$7E1112
|
1 byte |
Level Number |
World Map: current level/option slot. Sets the level index ($7E021A) if you select one. |
|
$7E1117
|
1 byte |
Map |
World Map: Current World selected * 2. Sets the world number ($7E0218). |
|
$7E1125
|
2 bytes |
Map |
Current Yoshi formation in world map. Values follow world number ($7E0218) format. |
|
$7E112E
|
2 bytes |
Map |
World Map: Current Yoshi selected (which one Baby Mario is mounted), changes when you move between normal levels, not special, bonus, nor options. |
|
$7E11B6
|
2 bytes |
Timer |
Beginning story cutscene: Number of frames left (counts down) to display current text before fading out |
|
$7E11B8
|
2 bytes |
Misc. |
Beginning story cutscene state:
$01 = load next text (into fade in)
$02 = fade in text
$03 = display text (normal)
$04 = load next text (into scroll)
$05 = scroll down to next text part
$06 = fade out text |
|
$7E11BA
|
2 bytes |
Misc. |
Beginning story cutscene: Current text (index by 2's into $0FCD56) |
|
$7E11BC
|
2 bytes |
Misc. |
Beginning story cutscene: BG4 tilemap VRAM destination (for DMA of text) |
|
$7E11BE
|
576 bytes |
Layer 4 Tilemap |
Beginning story cutscene: All possible BG4 tilemap data (text), split into 64-byte chunks which are loaded into VRAM as new text comes in |
|
$7E13FE
|
1 byte |
Misc. |
Beginning story cutscene: Current Y scroll destination (index by 2's into $0FCE90) |
|
$7E1404
|
1 byte |
Misc. |
Beginning story cutscene: Frame timing for current scene/text shown (index into cutscene timer table $0FCEDB) |
|
$7E1405
|
2 bytes |
Timer |
Frame timer (counts down) for beginning story cutscene and rotating island; upon 0, it will fade into the other one (endlessly switching until you load file select menu) |
|
$7E1409
|
1488 bytes |
Empty |
Unused RAM, cleared (with $00) via DMA during reset as well as before and after Nintendo logo
NOTE: There's a bug in level loading of Burts Boss room (only room?) where it will do an unintentional read of $7E15A5 (word sized) and use it as a tile. But it's never written to. |
|
$7E1E00
|
832 bytes |
Empty |
Unused RAM, cleared (with $00) via DMA during reset as well as before and after Nintendo logo |
|
$7E2340
|
7360 bytes |
Empty |
Unused RAM, cleared (with $00) via DMA during reset as well as before and after Nintendo logo |
|
$7E4000
|
2 bytes |
Misc. Tilemap |
Bytes until next free entry in tilemap DMA queue |
|
$7E4002
|
2046 bytes |
Misc. Tilemap |
Reserved area for VRAM tilemap DMA queue, processed every frame, split into variable-sized entries, let e = one entry:
e[0:1]: xvvv vvvv vvvv vvvv
x = End of queue marker
v = VRAM destination/source address
e[2:3]: vidt tttt tttt tttt
t = transfer size - 1 (can also act as entry size)
v = column transfer (32 byte increase if set, otherwise 1)
i = Does a fixed transfer if set (init data)
d = Direction, does a read of VRAM if set (otherwise write)
if d == 1 (Read Tilemap):
Read from VRAM address and write to destination
e[4:6]: Long Destination address to write to
if d == 0 and i == 0 (Write Tilemap):
Write to VRAM address using data from entry
e[4:t]: Data to DMA, size same as t
if d == 0 and i == 1 (Init Tilemap):
Write to VRAM address floodfill using data from entry
e[4:5]: Word data to repeat t times
(Queue size doesn't go beyond 182 bytes in vanilla game so roughly 1864 bytes of this are "free") |
|
$7E4800
|
2 bytes |
Pointer |
Address of last entry in general-purpose DMA queue |
|
$7E4802
|
2110 bytes |
Misc. |
Reserved area for general-purpose DMA queue, split into 12-byte entries, let e = one entry:
e[0:1]: VRAM destination address
e[2]: video port control
e[3]: DMA control
e[4]: DMA destination register
e[5:7]: long source address
e[8:9]: DMA size
e[A:B]: address of next entry in queue
(Doesn't go beyond $4999 in vanilla gameplay, so roughly 1700 bytes of this are "free") |
|
$7E5040
|
420 bytes |
Misc. |
HDMA Table for BG3 Vertical scroll (register $2112), OR when OPT is enabled, writes to BG2 Horizontal scroll (register $210F) instead:
1 word entries from top of actual screen to bottom (minus black bars), representing each scanline |
|
$7E51E4
|
420 bytes |
Misc. |
HDMA Table for BG3 Horizontal scroll (register $2111), OR when OPT is enabled, writes to BG2 Vertical scroll (register $2110) instead:
1 word entries from top of actual screen to bottom (minus black bars), representing each scanline |
|
$7E56D0
|
840 bytes |
Misc. |
HDMA Table for Window 1 & 2 ($2126-$2129)
4 bytes per entry, from top of actual screen to bottom (minus black bars), representing each scanline:
Byte 1: Window 1 Left Position
Byte 2: Window 1 Right Position
Byte 3: Window 2 Left Position
Byte 4: Window 2 Right Position |
|
$7E5A18
|
128 bytes |
Misc. |
HDMA Indirect Table 0, native SNES HDMA Indirect format, 3-byte entries:
Byte: rccccccc r = repeat, c = scanline count
Word: Source pointer |
|
$7E5A98
|
128 bytes |
Misc. |
HDMA Indirect Table 1 (format) |
|
$7E5B18
|
128 bytes |
Misc. |
HDMA Indirect Table 2 (format) |
|
$7E5B98
|
128 bytes |
Misc. |
HDMA Indirect Table 3 (format)
Default for Channel 4 (BG3 V-scroll (BG2 for OPT)) |
|
$7E5C18
|
128 bytes |
Misc. |
HDMA Indirect Table 4 (format)
Commonly used for Channel 3 (BG3 H-scroll (BG2 for OPT)) |
|
$7E5C98
|
128 bytes |
Misc. |
HDMA Indirect Table 5 (format)
Commonly used for Channel 2 (green & red channel of background gradient) |
|
$7E5D18
|
128 bytes |
Misc. |
HDMA Indirect Table 6 (format)
Commonly used for Channel 1 (blue channel of background gradient) |
|
$7E5D98
|
2 bytes |
Misc. |
Number of bytes Yoshi's in-between level egg inventory items take up (# of items * 2) |
|
$7E5D9A
|
12 bytes |
Misc. |
Egg inventory items stored in between levels (not current eggs), 6 words, each one is a sprite ID |
|
$7E5DA6
|
2048 bytes |
Misc. |
Cross sections: Full copy of cross section BG3 tile graphics, set only once upon loading cross section levels and then every frame stored to $706800
Chomp Shark: BG3 tilemap animations |
|
$7E65A6
|
2048 bytes |
Layer 1 Tilemap |
BG1 left tilemap mirror used for cross section graphical masking effect (free RAM if not using cross section BG3 header $0A) |
|
$7E6DA6
|
1024 bytes |
Layer 1 Tilemap |
BG1 right tilemap mirror used for cross section graphical masking effect (free RAM if not using cross section BG3 header $0A) |
|
$7E71A6
|
1024 bytes |
Layer 1 Tilemap |
Overlap between $7E6DA6 and $7E75A6, both tilemaps are actually 2048 bytes and this acts as either one depending on when (free RAM if not using cross section BG3 header $0A) |
|
$7E75A6
|
1024 bytes |
Layer 3 Tilemap |
BG3 tilemap mirror (VRAM $3400) used for cross sections (free RAM if not using cross section BG3 header $0A) |
|
$7EB8E2
|
1822 bytes |
Empty |
Unused RAM, cleared (with $00) via DMA during reset as well as before and after Nintendo logo |
|
$7EC000
|
16384 bytes |
ASM |
Copy of $00C000-$00FFFF (Code is never executed with the data bank as $00 for this range; it's always $7E) |
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