1 files changed, 17 insertions, 0 deletions
diff --git a/agbx/source/gfx/flip.c b/agbx/source/gfx/flip.c
new file mode 100644
index 0000000..92b8939
--- /dev/null
+++ b/agbx/source/gfx/flip.c
@@ -0,0 +1,17 @@
+/*
+	Copyright 2022 Gabriel Jensen.
+	This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+	If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
+*/
+
+#include <agbx/priv.h>
+
+#include <agbx/gfx.h>
+
+agbx_i20 agbx_flip(void) {
+	agbx_i10 dispcnt = agbx_get10(0x400'0000u);
+	dispcnt ^= 0b10000u;
+	agbx_set10(0x400'0000u,dispcnt);
+	if (dispcnt & 0x10000u) {return 0x600'A000u;}
+	return 0x600'0000u;
+}