diff --git a/src/800.c b/src/800.c
index d71a69736..dd95daeac 100644
--- a/src/800.c
+++ b/src/800.c
@@ -21166,7 +21166,87 @@ void func_8002AC00(s32 a0)
     *(u16*)(s0 - 2) = (u16)v0;
 }
 
-INCLUDE_ASM("asm/nonmatchings/800", func_8002AC98);
+extern s32 func_800291B4(s32);
+extern u16 D_800A6588[];
+extern u8 D_8010F46C[];
+extern u8 D_80078EBA;
+void func_8002AC98(void)
+{
+register u16 *base __asm__("$20");
+  s16 i;
+  s16 val;
+  s32 t;
+  s32 r;
+  s32 idx;
+  s16 rc;
+  s32 b;
+  base = D_800A6588;
+  if (D_80078EBA == 0)
+  {
+    for (i = 0; i < 0x40; i++)
+    {
+      t = func_800291B4(((s16) i) + 0x63) & 0xF;
+      if (t != 0)
+      {
+        r = rand() & 0x1F;
+        switch (t)
+        {
+          case 1:
+            rc = r;
+            if ((rc != 0) && (rc != 0xB))
+          {
+            b = base[i] - 0xB;
+            { s32 xt = r + b; val = xt; }
+          }
+          else
+          {
+            val = ((s16) base[i]) >> 1;
+          }
+            break;
+
+          case 2:
+            if (r != 0)
+          {
+            b = base[i] - 0xB;
+            { s32 xt = r + b; val = xt; }
+          }
+            break;
+
+          case 3:
+            rc = r;
+            if ((rc != 0) && (rc != 0xB))
+          {
+            b = base[i] - 0xB;
+            { s32 xt = r + b; val = xt; }
+          }
+          else
+          {
+            val = base[i] * 2;
+          }
+            break;
+
+        }
+
+        idx = i + 1;
+        if (val < (*((s16 *) (&D_8010F46C[idx * 8]))))
+        {
+          base[i] = *((s16 *) (&D_8010F46C[idx * 8]));
+        }
+        else
+          if (((*((s16 *) (&D_8010F46C[idx * 8]))) * 4) < val)
+        {
+          rc = 4;
+          base[i] = (*((s16 *) (&D_8010F46C[idx * 8]))) * rc;
+        }
+        else
+        {
+          base[i] = val;
+        }
+      }
+    }
+
+  }
+}
 
 s32 func_8002AE60(void) {
     s16 i;