Nintendo 1504166 Programming Manual - Page 52
BG Scrolling, offset display Scaling/Rotation BG and Bitmap Mode BG set the BG
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AGB Programming Manual Rendering Functions 6.1.8 BG Scrolling For each text BG screen, the offset on the display screen can be specified in 1-dot increments. Offset register is only valid for Text BG. In order to offset display Scaling/Rotation BG and Bitmap Mode BG set the BG Reference Starting Point. See "6.1.7, BG Rotation and Scaling Features". Offset Settings Registers Address Register 010h BG0HOFS 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 AttributesInitial Value 014h BG1HOFS W 0000h 018h BG2HOFS 01Ch BG3HOFS H offset Address Register 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 AttributesInitial Value 012h BG0VOFS 016h BG1VOFS W 0000h 01Ah BG2VOFS 01Eh BG3VOFS V offset Offset Illustration H Offset V Offset Display Screen Screen ©1999 - 2001 Nintendo of America Inc. 52 D.C.N. AGB-06-0001-002B4