diff --git a/config/regions.tsv b/config/regions.tsv
index 82d1cc6..662e63f 100644
--- a/config/regions.tsv
+++ b/config/regions.tsv
@@ -657,6 +657,7 @@
 0x800F8FF8	0x800F9008	src/func_800F8FF8.c
 0x800F92A4	0x800F9344	src/func_800F92A4.c
 0x800F9344	0x800F9380	src/func_800F9344.c
+0x800F9380	0x800F9410	src/func_800F9380.c
 0x800FA5D8	0x800FA65C	src/func_800FA5D8.c	maspsx=moves
 0x800FA960	0x800FA980	src/func_800FA960.c
 0x800FAF84	0x800FAFEC	src/func_800FAF84.c	maspsx=epilogue
diff --git a/src/func_800F9380.c b/src/func_800F9380.c
new file mode 100644
index 0000000..e297c31
--- /dev/null
+++ b/src/func_800F9380.c
@@ -0,0 +1,15 @@
+/* Draft for func_800F9380 (0x800F9380..0x800F9410, exact extent). */
+extern short D_80120328[];
+extern short D_8011F328[];
+
+int func_800F9380(int a0)
+{
+    if (a0 < 0x801) {
+        if (a0 < 0x401)
+            return D_80120328[a0];
+        return D_80120328[0x800 - a0];
+    }
+    if (a0 < 0xc01)
+        return -D_8011F328[a0];
+    return -D_80120328[0x1000 - a0];
+}