Nintendo DMG-01 Manual - Page 58

FF48 OBP0, FF49 OBP1, FF4A WY, FF4B WX

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2.13.1. I/O Registers Game BoyTM CPU Manual 39. FF48 (OBP0) Name - OBP0 Contents - Object Palette 0 Data (R/W) This selects the colors for sprite palette 0. It works exactly as BGP ($FF47) except each each value of 0 is transparent. 40. FF49 (OBP1) Name - OBP1 Contents - Object Palette 1 Data (R/W) This Selects the colors for sprite palette 1. It works exactly as OBP0 ($FF48). See BGP for details. 41. FF4A (WY) Name - WY Contents - Window Y Position (R/W) 0

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2.13.1. I/O Registers
Game Boy
TM
CPU Manual
39.
FF48 (OBP0)
Name
- OBP0
Contents - Object Palette 0 Data (R/W)
This selects the colors for sprite
palette 0. It works exactly as BGP
($FF47) except each each value of 0 is
transparent.
40.
FF49 (OBP1)
Name
- OBP1
Contents - Object Palette 1 Data (R/W)
This Selects the colors for sprite
palette 1. It works exactly as OBP0
($FF48). See BGP for details.
41.
FF4A (WY)
Name
- WY
Contents - Window Y Position
(R/W)
0 <= WY <= 143
WY must be greater than or equal to 0 and
must be less than or equal to 143 for
window to be visible.
42.
FF4B (WX)
Name
- WX
Contents - Window X Position
(R/W)
0 <= WX <= 166
WX must be greater than or equal to 0 and
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