diff --git a/src/800.c b/src/800.c
index c98a0a1e4e..d7e90b2f5d 100644
--- a/src/800.c
+++ b/src/800.c
@@ -7422,7 +7422,56 @@ void func_8001C2C4(s32 a0) {
     *(s32 *)(a0 + 0x24) = 0;
 }
 
-INCLUDE_ASM("asm/nonmatchings/800", func_8001C320);
+void func_8001C320(s32 a0, s32 a1)
+{
+    extern void func_8001C9D0(void);
+    extern void func_80052D90(s32 a0, void *a1);
+    extern void func_80054514(s32 a0, s32 a1);
+    extern void GsMapModelingData(u32 *p);
+    extern void GsLinkObject5();
+    extern void *GsPresetObject();
+    extern u8 D_800AF630[];
+    extern u8 D_80063548[];
+    extern u16 D_800AF7CC;
+    extern s32 *D_800AF7C8;
+    extern u8 D_800A5BD0[];
+
+    s32 sp10[8];
+    register s32 obj __asm__("$17");
+    register s32 next __asm__("$19");
+    register s32 work __asm__("$20");
+    s32 entry;
+    u16 c2;
+
+    obj = a0;
+    func_8001C9D0();
+    *(u16 *)obj = 1;
+    *(u16 *)(obj + 2) = 1;
+    func_80052D90(0, (void *)(obj + 0x30));
+    func_80054514(obj + 0x30, (s32)&sp10[0]);
+    work = (s32)D_800AF630;
+    *(s32 *)(obj + 0x24) = a1;
+    if (a1 != 0) {
+        *(s32 *)(obj + 0x20) = (s32)D_80063548;
+        next = (s32)D_800AF7C8;
+        *(u16 *)(obj + 0x2E) = D_800AF7CC;
+        if (*(s32 *)a1 != 0) {
+            do {
+                entry = (*(s32 *)a1 & 0x80FFFFFF) + 4;
+                a1 += 4;
+                __asm__ __volatile__("" : "=r"(entry) : "0"(entry));
+                GsMapModelingData((u32 *)entry);
+                c2 = *(u16 *)(work + 0x19C);
+                *(u16 *)(work + 0x19C) = c2 + 1;
+                GsLinkObject5((u32 *)(entry + 8),
+                              (void *)&D_800A5BD0[(c2 << 2) + c2 << 2], 0);
+                next = (s32)GsPresetObject(
+                    (void *)&D_800A5BD0[(c2 << 2) + c2 << 2], (void *)next);
+            } while (*(s32 *)a1 != 0);
+        }
+        *(s32 *)(work + 0x198) = next;
+    }
+}
 
 
 extern void func_8001C9D0(void);