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diff --git a/scroll/include/oam.s b/scroll/include/oam.s
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+.segment "CODE"
+
+.scope OAM
+ ADDR = $2003
+ DMA = $4014
+.endscope
+
+.macro OAM_WRITE_SPRITES
+ lda #$00
+ sta OAM::ADDR
+ lda #$02
+ sta OAM::DMA
+.endmacro