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YI Memory Map

Displaying 25 out of 305 addresses.

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RAM Address Length Type Description Details
$7E03C0 128 bytes Level Data Item Memory Page 0:
Vertical bitplane, each word represents a horizontal line (0 = not collected, 1 = collected)
$7E0440 128 bytes Level Data Item Memory Page 1:
Vertical bitplane, each word represents a horizontal line (0 = not collected, 1 = collected)
$7E04C0 128 bytes Level Data Item Memory Page 2:
Vertical bitplane, each word represents a horizontal line (0 = not collected, 1 = collected)
$7E0540 128 bytes Level Data Item Memory Page 3:
Vertical bitplane, each word represents a horizontal line (0 = not collected, 1 = collected)
$7E05C0 2 bytes Player Physics Current index into Yoshi delay buffers
$7E05C2 296 bytes Player Physics Yoshi X Coordinate delay buffer (2 bytes each): last 148 frames of where Yoshi's X was, used by egg inventory items to follow Yoshi
$7E06EA 296 bytes Player Physics Yoshi Y Coordinate delay buffer (2 bytes each): last 148 frames of where Yoshi's Y was, used by egg inventory items to follow Yoshi
$7E093C 1 byte Controller Controller 1 Data 1 (global):
AXLR----
A = A; X = X; L = L; R = R
$7E093D 1 byte Controller Controller 1 Data 2 (global):
byetUDLR
b = B; y = Y; e = Select; t = Start; U = up; D = down; L = left, R = right
$7E093E 1 byte Controller Controller 1 Data 1, on press/first frame (global):
AXLR----
A = A; X = X; L = L; R = R
$7E093F 1 byte Controller Controller 1 Data 2, on press/first frame (global):
byetUDLR
b = B; y = Y; e = Select; t = Start; U = up; D = down; L = left, R = right
$7E0940 1 byte Controller Controller 2 Data 1 (global):
AXLR----
A = A; X = X; L = L; R = R
$7E0941 1 byte Controller Controller 2 Data 2 (global):
byetUDLR
b = B; y = Y; e = Select; t = Start; U = up; D = down; L = left, R = right
$7E0942 1 byte Controller Controller 2 Data 1, on press/first frame (global):
AXLR----
A = A; X = X; L = L; R = R
$7E0943 1 byte Controller Controller 2 Data 2, on press/first frame (global):
byetUDLR
b = B; y = Y; e = Select; t = Start; U = up; D = down; L = left, R = right
$7E0944 1 byte Controller Previous frame controller 1 data 1 (what was previously in $7E093C), used for next frame's on press
$7E0945 1 byte Controller Previous frame controller 1 data 2 (what was previously in $7E093D), used for next frame's on press
$7E0946 1 byte Controller Previous frame controller 2 data 1 (what was previously in $7E0940), used for next frame's on press
$7E0947 1 byte Controller Previous frame controller 2 data 2 (what was previously in $7E0941), used for next frame's on press
$7E0948 2 bytes Misc. Word that stores each color channel's fixed color data intensity (mirror of $2132 for each channel):
0bbbbbgg gggrrrrr
b = blue channel intensity
g = green channel intensity
r = red channel intensity
$7E094A 1 byte Misc. Mirror of hardware register $420C
$7E094B 1 byte Misc. Mirror of hardware register $2101
$7E094C 1 byte Misc. Mirror of hardware register $212A
$7E094D 1 byte Misc. Mirror of hardware register $212B
$7E094E 1 byte Misc. Mirror of hardware register M7SEL ($211A)