YI Memory Map - Waiting Addresses
Displaying 19 out of 19 waiting addresses. Show Moderated Addresses

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Address Hexadecimal number for a partial address. 6-digit number for a full address. Use - to denote a range. Use , to list more than one address.
Length	= != > < >= <=
Type Enable JavaScript to use multiple regions.	All Addresses Any Misc. ASM Super FX Object Palette Sprite Palette Layer 1 Tilemap Layer 2 Tilemap Layer 3 Tilemap Layer 4 Tilemap Sprite Tilemap Player Tilemap Misc. Tilemap Player Physics Level Data Pointer Music Sprite Number Debug Sound Effect Timer Empty Subroutine Coordinate Level Number Map Cutscene Controller Sprite Physics Bandit Mini-Game Bonus Challenge Boss Pause Screen Text Any Misc. ASM Super FX Object Palette Sprite Palette Layer 1 Tilemap Layer 2 Tilemap Layer 3 Tilemap Layer 4 Tilemap Sprite Tilemap Player Tilemap Misc. Tilemap Player Physics Level Data Pointer Music Sprite Number Debug Sound Effect Sprite Table Timer Empty Subroutine Coordinate Level Number Map Cutscene Controller Sprite Physics Bandit Mini-Game Flag Bonus Challenge Boss Pause Screen Text Any Misc. ASM Super FX Object Palette Sprite Palette Layer 1 Tilemap Layer 2 Tilemap Layer 3 Tilemap Layer 4 Tilemap Sprite Tilemap Player Tilemap Misc. Tilemap Player Physics Level Data Pointer Music Sprite Number Debug Sound Effect Timer Empty Subroutine Coordinate Level Number Map Cutscene Controller Sprite Physics Bandit Mini-Game Bonus Challenge Boss Pause Screen Text Table Graphics Any SNES Register (PPU) SNES Register (APU) SNES Register (Hardware) SNES Register (Controller) SNES Register (DMA) Super FX Register Any Misc. ASM Super FX Object Palette Sprite Palette Layer 1 Tilemap Layer 2 Tilemap Layer 3 Tilemap Layer 4 Tilemap Sprite Tilemap Player Tilemap Misc. Tilemap Player Physics Level Data Pointer Music Sprite Number Debug Sound Effect Timer Empty Subroutine Coordinate Level Number Map Cutscene Controller Sprite Physics Bandit Mini-Game Bonus Challenge Boss Pause Screen Text Table Graphics
Region Hold control to select multiple. Check "All" to select all at once.	RAM SRAM ROM Regs Tweaks All
Type	Any
Description Separate each individual keyword with spaces. Surround a phrase with quotes to look for the exact phrase, or with / to use a PCRE regular expression. Prepend with - to exclude a keyword or phrase, with + to require a whole word or phrase, or with -+ to exclude a whole word or phrase. ? matches any character, * matches any amount of characters.

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RAM Address	Length	Type	Description	Details	Submitter
$7E0127	1 byte	Misc.	Which tilemap queue to DMA Default $00 (RAM queue) Values $00 to $0C		Arnethegreat
$7E0220	1 byte	Map	Used during gamemode $#20 to determine which map event to run. Set when exiting level. #$00 = no event #$01-#$7F = unlock next level #$80-#$FF = update high score (last seven bits are old high score)		Sillymel
$7E0CF9	2 bytes	Misc.	Flag to upload graphics from the Super FX buffer. Is the value positive then 0x2000 bytes are uploaded from $705800 into $5400 (i.e. the last four rows of the sprite graphics). Is the value negative then the VRAM destination is whatever is stored in $0CF9 & 0x7FE0 and the graphics come from $706800 instead. Upload size stays the same.		MarioFanGamer
$7E0D0D	1 byte	Misc.	Special background colour HDMA activated. This tells the game that the background colour HDMA doesn't come from the level's background colour but rather from a hardcoded setting.		MarioFanGamer
$7E0D27	2 bytes	Misc.	Enable flag for subscreen designation HDMA?? (1-3 stage) ($7E5040)		Arnethegreat
$7E0D2B	2 bytes	Misc.	Enable flag for BG2 Horizontal Scroll HDMA ($7E5040)		Arnethegreat
$7E0D2D	2 bytes	Misc.	Enable flag for BG2 Vertical Scroll HDMA ($7E51E4)		Arnethegreat
$7E0D3B	2 bytes	Misc.	Enable flag for BG3 Horizontal Scroll and subscreen designation HDMA (ch 6 & 7)?? (Pond submarine sections) ($7E552C)		Arnethegreat
$7E0D3D	2 bytes	Misc.	Enable flag for BG3 Horizontal Scroll HDMA ($7E51E4)		Arnethegreat
$7E0D45	2 bytes	Misc.	Enable flag for BG3 Vertical Scroll HDMA ($7E5040)		Arnethegreat
$7E19DA	1062 bytes	Level Data	Set and used during level load: This one holds the Map16 tile number for the current tilemap. This allows the game to place different Map16 objects in different tilesets while using the same object.		MarioFanGamer

SRAM Address	Length	Type	Description	Details	Submitter
$70004A	22 bytes	Super FX	Palette for the falling wall and spinning wooden platform (sprites 0x36 and 0x39). Each byte contains the individual colour i.e. only red, green or blue. These colours are then multiplied with the angle plus some constant which is then stored into the CG-RAM mirror.		MarioFanGamer
$7001E6	2 bytes	Misc.	Timer until Yoshi is able to flutter again in a flutter chain. Set to $12 after a flutter is finished and decrements.		Teyla
$701960	16 bytes	Misc.	Sprite scratch RAM. The direct page in sprites is set to $7960 so accesses from $00-$0F default to these inside sprites.		MarioFanGamer
$701FE4	2 bytes	Timer	Frame counter for the wave effect on layer 3. Since this is only used in backgrounds with a wave effect like the sun background, it can be used as freeRAM if these backgrounds aren't currently used.		MarioFanGamer

ROM Address	Length	Type	Description	Details	Submitter
$0890E7	156 bytes	Super FX	Decompresses the HDMA colour gradient in ROM where the table's bank byte is in R0 and its low and high byte in R1. The resulting colour is stored into the Super FX buffer $705800. Each gradient table is 48 bytes large resulting 24 different colours. The HDMA table is backwards i.e. the first colours are the bottom most colours and the last colours the top most colours in the final gradient. The first 368 generated lines are smooth transitions where each tenth line is a different colour and the other generated 70 lines are a constant colour using in the compressed table last colour.	Calculation	MarioFanGamer
$08DC4D	Unknown	Super FX	Generates a layer 3 parallax and wave HDMA table. In addition, it also updates $701FE4 which is the frame counter/"angle" for the wave effect which only gets updated if R11 is zero. During the initialisation, R1 determines whether the table starts as without or with a wave effect. In the loop, if the mode switch value is positive then decompress the table. Otherwise, switch the mode. It first evaluates the parallax scroll by multiplying the layer 1 X position with the scroll factor for the current lines and takes bits 8-15 of the 32-bit for the scrolling value. This value is stored into the buffer up to the scrolling reaches Y position of the effect where the next values are evaluated. If the wave effect is activated then the offset added to the scrolling is -sin(t) * rad with t being the frame counter/"angle" and rad being the amplitude/"radius". For each new line, t is increased by the "angle" stored in the fifth byte in the table. This procedure is repeated for so long until 210 lines are evaluated.	Input Table Format	MarioFanGamer
$09835F	477 bytes	Super FX	Super FX routine which draws Yoshi (puts the OAM tiles and sets the graphics pointer). It also draws Yoshi's tongue.		MarioFanGamer

Tweaks Address	Length	Type	Description	Details	Submitter
$0EBEA1	1 byte	Sprite Palette	Item Memory index at which Chomp Rock in 1-1 will use the special palette. Default [01].		BTD6_maker

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