YI Memory Map
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
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
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
SNES Register (PPU)
SNES Register (APU)
SNES Register (Hardware)
SNES Register (Controller)
SNES Register (DMA)
Super FX Register
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
SRAM Address
Length
Type
Description
Details
$7000DA
2 bytes
Player Physics
Yoshi's stair state/counter, counts down/up in between steps on stairs (only high byte is used):
$0800 to $0100 for left-facing stairs
$F800 to $FF00 for right-facing stairs