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-rw-r--r--engine/gfx/load_push_oam.asm21
1 files changed, 21 insertions, 0 deletions
diff --git a/engine/gfx/load_push_oam.asm b/engine/gfx/load_push_oam.asm
new file mode 100644
index 00000000..2e43c1ff
--- /dev/null
+++ b/engine/gfx/load_push_oam.asm
@@ -0,0 +1,21 @@
+WriteOAMDMACodeToHRAM::
+ ld c, LOW(hTransferVirtualOAM)
+ ld b, .PushOAMEnd - .PushOAM
+ ld hl, .PushOAM
+.loop
+ ld a, [hli]
+ ldh [c], a
+ inc c
+ dec b
+ jr nz, .loop
+ ret
+
+.PushOAM:
+ ld a, HIGH(wVirtualOAM)
+ ldh [rDMA], a
+ ld a, NUM_SPRITE_OAM_STRUCTS
+.pushoam_loop
+ dec a
+ jr nz, .pushoam_loop
+ ret
+.PushOAMEnd