YI Memory Map - SMW Central

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Displaying 25 out of 305 addresses.

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RAM Address	Length	Type	Description	Details
$7E0000	48 bytes	Misc.	Scratch RAM, used like "registers" for various operations
$7E0030	2 bytes	Timer	Frame counter
$7E0032	3 bytes	Pointer	Pointer to level object data
$7E0035	1 byte	Controller	Controller 1 Data 1, mirror of $7E093C
$7E0036	1 byte	Controller	Controller 1 Data 2, mirror of $7E093D
$7E0037	1 byte	Controller	Controller 1 Data 1 on press/first frame, mirror of $7E093E
$7E0038	1 byte	Controller	Controller 1 Data 2 on press/first frame, mirror of $7E093F
$7E0039	2 bytes	Misc.	Layer 1 Camera X
$7E003B	2 bytes	Misc.	Layer 1 Camera Y
$7E003D	2 bytes	Misc.	Layer 2 Camera X
$7E003F	2 bytes	Misc.	Layer 2 Camera Y
$7E0041	2 bytes	Misc.	Layer 3 Camera X (also for World Map)
$7E0043	2 bytes	Misc.	Layer 3 Camera Y
$7E0045	2 bytes	Misc.	Layer 4 Camera X
$7E0047	2 bytes	Misc.	Layer 4 Camera Y
$7E0049	4 bytes	Empty	Unused RAM, cleared (with $00) during every loading screen
$7E004D	2 bytes	Sound Effect	Music track to be played - mirror of hardware register $2140 (APU I/O 0)
$7E004F	2 bytes	Sound Effect	Previous value of $7E004D (if previous == current value of hardware register $2140, do not write to register)
$7E0051	2 bytes	Sound Effect	Mirror of hardware register $2141 (APU I/O 1, pseudo-noise loop)
$7E0053	2 bytes	Sound Effect	Sound ID to be played instantly, bypasses the sound queue, directly written to hardware register $2143
$7E0055	2 bytes	Sound Effect	Previous value of $7E0053 (if previous == current value in hardware register $2143, do not write to register)
$7E0057	2 bytes	Sound Effect	Current size of sound queue (capacity 7)
$7E0059	16 bytes	Sound Effect	Sound effect queue, NOT all sounds currently playing, but instead all sound ID's (1 byte per) to be submitted for play at the current time; each frame the queue index decrements, meaning at most one sound submitted per frame
$7E0069	2 bytes	Map	World Map: Layer 1 scroll Mirrored by $7E006D
$7E006B	2 bytes	Misc.	Yoshi's jump state, mirror of $7000C0

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