diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index 979e6cb49..61411e76c 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -14558,3 +14558,10 @@ groups:
     func: DEFINE_func_8017D808
     vram: 0x8017D808
     binaries: [ov_SC01_005, ov_SC01_006]
+  - id: E_func_8017E404
+    tier: h_exact
+    hash: 7c41de81900f591c42e025527551c45c3580913c
+    source: src/shared/engine_core.h
+    func: DEFINE_func_8017E404
+    vram: 0x8017E404
+    binaries: [ov_SC02_000, ov_SC02_003]
diff --git a/src/ov_SC02_000/ov_SC02_000_jr_8017AE2C.c b/src/ov_SC02_000/ov_SC02_000_jr_8017AE2C.c
index 0b568a630..fb2b31243 100644
--- a/src/ov_SC02_000/ov_SC02_000_jr_8017AE2C.c
+++ b/src/ov_SC02_000/ov_SC02_000_jr_8017AE2C.c
@@ -4529,52 +4529,7 @@ void func_8017D538(s32 arg0)
 // @class: regalloc-order
 // @stuck: none — MATCH (relocation-masked, 70 ins). pins $s0/$s1 + precomputed a0v anchored in a zero-byte barrier fix the prologue schedule.
 
-extern s32 func_8012BC60(struct Vec *a0, struct Vec *a1);
-extern s32 ratan2(s32, s32);
-extern void func_8012B0B4(SVEC *, s32, s32);
-extern s32 func_8012CEB0(s32 a0, s32 a1, s32 a2);
-extern void func_8012ADE4(u8 *a0);
-
-s32 func_8017E404(s32 param_1, s32 param_2)
-{
-    register s32 p1 __asm__("$16") = param_1;
-    register s32 p2 __asm__("$17") = param_2;
-    SVEC in;
-    SVEC out;
-    SVEC buf;
-    s32 d;
-    s32 ang;
-    u16 px, pz;
-    s32 a0v;
-
-    a0v = p1 + 4;
-    __asm__ __volatile__("" : : "r"(p2), "r"(a0v));
-    if (((s32 (*)(s32, s32))func_8012BC60)(a0v, p2 + 4) >= 0x1000) {
-        return 0;
-    }
-    ang = ratan2((s32)*(s16 *)(p1 + 0xe) - (s32)*(s16 *)(p2 + 0xe),
-                 (s32)*(s16 *)(p2 + 6) - (s32)*(s16 *)(p1 + 6));
-    func_8012B0B4(&buf, (ang - 0x400) & 0xfff, 0x41);
-    d = *(s32 *)&buf;
-    px = *(u16 *)(p2 + 6);
-    out.vx = px;
-    out.vy = *(u16 *)(p2 + 0xa);
-    pz = *(u16 *)(p2 + 0xe);
-    out.vz = pz;
-    out.vx = px + d;
-    out.vz = pz + (d >> 16);
-    in.vx = *(u16 *)(p1 + 0x3a);
-    in.vy = *(u16 *)(p1 + 0x3e);
-    in.vz = *(u16 *)(p1 + 0x42);
-    if ((((s32 (*)(SVEC *, SVEC *, s32))func_8012CEB0)(&in, &out, 0) & 0x2000) == 0) {
-        ((void (*)(s32))func_8012ADE4)(p1);
-        return 1;
-    }
-    *(s16 *)(p1 + 6) = out.vx;
-    *(s16 *)(p1 + 0xa) = out.vy;
-    *(s16 *)(p1 + 0xe) = out.vz;
-    return 1;
-}
+DEFINE_func_8017E404()  /* dedup: shared engine-core @0x8017E404 (src/shared) */
 
 
 
diff --git a/src/ov_SC02_003/ov_SC02_003_jr_8017AE2C.c b/src/ov_SC02_003/ov_SC02_003_jr_8017AE2C.c
index 6776c1666..7600c43b7 100644
--- a/src/ov_SC02_003/ov_SC02_003_jr_8017AE2C.c
+++ b/src/ov_SC02_003/ov_SC02_003_jr_8017AE2C.c
@@ -4529,52 +4529,7 @@ void func_8017D538(s32 arg0)
 // @class: regalloc-order
 // @stuck: none — MATCH (relocation-masked, 70 ins). pins $s0/$s1 + precomputed a0v anchored in a zero-byte barrier fix the prologue schedule.
 
-extern s32 func_8012BC60(struct Vec *a0, struct Vec *a1);
-extern s32 ratan2(s32, s32);
-extern void func_8012B0B4(SVEC *, s32, s32);
-extern s32 func_8012CEB0(s32 a0, s32 a1, s32 a2);
-extern void func_8012ADE4(u8 *a0);
-
-s32 func_8017E404(s32 param_1, s32 param_2)
-{
-    register s32 p1 __asm__("$16") = param_1;
-    register s32 p2 __asm__("$17") = param_2;
-    SVEC in;
-    SVEC out;
-    SVEC buf;
-    s32 d;
-    s32 ang;
-    u16 px, pz;
-    s32 a0v;
-
-    a0v = p1 + 4;
-    __asm__ __volatile__("" : : "r"(p2), "r"(a0v));
-    if (((s32 (*)(s32, s32))func_8012BC60)(a0v, p2 + 4) >= 0x1000) {
-        return 0;
-    }
-    ang = ratan2((s32)*(s16 *)(p1 + 0xe) - (s32)*(s16 *)(p2 + 0xe),
-                 (s32)*(s16 *)(p2 + 6) - (s32)*(s16 *)(p1 + 6));
-    func_8012B0B4(&buf, (ang - 0x400) & 0xfff, 0x41);
-    d = *(s32 *)&buf;
-    px = *(u16 *)(p2 + 6);
-    out.vx = px;
-    out.vy = *(u16 *)(p2 + 0xa);
-    pz = *(u16 *)(p2 + 0xe);
-    out.vz = pz;
-    out.vx = px + d;
-    out.vz = pz + (d >> 16);
-    in.vx = *(u16 *)(p1 + 0x3a);
-    in.vy = *(u16 *)(p1 + 0x3e);
-    in.vz = *(u16 *)(p1 + 0x42);
-    if ((((s32 (*)(SVEC *, SVEC *, s32))func_8012CEB0)(&in, &out, 0) & 0x2000) == 0) {
-        ((void (*)(s32))func_8012ADE4)(p1);
-        return 1;
-    }
-    *(s16 *)(p1 + 6) = out.vx;
-    *(s16 *)(p1 + 0xa) = out.vy;
-    *(s16 *)(p1 + 0xe) = out.vz;
-    return 1;
-}
+DEFINE_func_8017E404()  /* dedup: shared engine-core @0x8017E404 (src/shared) */
 
 
 
diff --git a/src/shared/engine_core.h b/src/shared/engine_core.h
index ee5b7b8ea..ebb59453b 100644
--- a/src/shared/engine_core.h
+++ b/src/shared/engine_core.h
@@ -60394,6 +60394,52 @@
         *(s32 *)(param_1 + 0x44) = (s32)svec_out.vz; \
     }
 
+#define DEFINE_func_8017E404() \
+    extern s32 func_8012BC60(struct Vec *a0, struct Vec *a1); \
+    extern s32 ratan2(s32, s32); \
+    extern void func_8012B0B4(SVEC *, s32, s32); \
+    extern s32 func_8012CEB0(s32 a0, s32 a1, s32 a2); \
+    extern void func_8012ADE4(u8 *a0); \
+    s32 func_8017E404(s32 param_1, s32 param_2) \
+    { \
+        register s32 p1 __asm__("$16") = param_1; \
+        register s32 p2 __asm__("$17") = param_2; \
+        SVEC in; \
+        SVEC out; \
+        SVEC buf; \
+        s32 d; \
+        s32 ang; \
+        u16 px, pz; \
+        s32 a0v; \
+        a0v = p1 + 4; \
+        __asm__ __volatile__("" : : "r"(p2), "r"(a0v)); \
+        if (((s32 (*)(s32, s32))func_8012BC60)(a0v, p2 + 4) >= 0x1000) { \
+            return 0; \
+        } \
+        ang = ratan2((s32)*(s16 *)(p1 + 0xe) - (s32)*(s16 *)(p2 + 0xe), \
+                     (s32)*(s16 *)(p2 + 6) - (s32)*(s16 *)(p1 + 6)); \
+        func_8012B0B4(&buf, (ang - 0x400) & 0xfff, 0x41); \
+        d = *(s32 *)&buf; \
+        px = *(u16 *)(p2 + 6); \
+        out.vx = px; \
+        out.vy = *(u16 *)(p2 + 0xa); \
+        pz = *(u16 *)(p2 + 0xe); \
+        out.vz = pz; \
+        out.vx = px + d; \
+        out.vz = pz + (d >> 16); \
+        in.vx = *(u16 *)(p1 + 0x3a); \
+        in.vy = *(u16 *)(p1 + 0x3e); \
+        in.vz = *(u16 *)(p1 + 0x42); \
+        if ((((s32 (*)(SVEC *, SVEC *, s32))func_8012CEB0)(&in, &out, 0) & 0x2000) == 0) { \
+            ((void (*)(s32))func_8012ADE4)(p1); \
+            return 1; \
+        } \
+        *(s16 *)(p1 + 6) = out.vx; \
+        *(s16 *)(p1 + 0xa) = out.vy; \
+        *(s16 *)(p1 + 0xe) = out.vz; \
+        return 1; \
+    }
+
 #endif
 
 #define DEFINE_func_80128EA8() \
@@ -150193,4 +150239,50 @@
         *(s32 *)(param_1 + 0x44) = (s32)svec_out.vz; \
     }
 
+#define DEFINE_func_8017E404() \
+    extern s32 func_8012BC60(struct Vec *a0, struct Vec *a1); \
+    extern s32 ratan2(s32, s32); \
+    extern void func_8012B0B4(SVEC *, s32, s32); \
+    extern s32 func_8012CEB0(s32 a0, s32 a1, s32 a2); \
+    extern void func_8012ADE4(u8 *a0); \
+    s32 func_8017E404(s32 param_1, s32 param_2) \
+    { \
+        register s32 p1 __asm__("$16") = param_1; \
+        register s32 p2 __asm__("$17") = param_2; \
+        SVEC in; \
+        SVEC out; \
+        SVEC buf; \
+        s32 d; \
+        s32 ang; \
+        u16 px, pz; \
+        s32 a0v; \
+        a0v = p1 + 4; \
+        __asm__ __volatile__("" : : "r"(p2), "r"(a0v)); \
+        if (((s32 (*)(s32, s32))func_8012BC60)(a0v, p2 + 4) >= 0x1000) { \
+            return 0; \
+        } \
+        ang = ratan2((s32)*(s16 *)(p1 + 0xe) - (s32)*(s16 *)(p2 + 0xe), \
+                     (s32)*(s16 *)(p2 + 6) - (s32)*(s16 *)(p1 + 6)); \
+        func_8012B0B4(&buf, (ang - 0x400) & 0xfff, 0x41); \
+        d = *(s32 *)&buf; \
+        px = *(u16 *)(p2 + 6); \
+        out.vx = px; \
+        out.vy = *(u16 *)(p2 + 0xa); \
+        pz = *(u16 *)(p2 + 0xe); \
+        out.vz = pz; \
+        out.vx = px + d; \
+        out.vz = pz + (d >> 16); \
+        in.vx = *(u16 *)(p1 + 0x3a); \
+        in.vy = *(u16 *)(p1 + 0x3e); \
+        in.vz = *(u16 *)(p1 + 0x42); \
+        if ((((s32 (*)(SVEC *, SVEC *, s32))func_8012CEB0)(&in, &out, 0) & 0x2000) == 0) { \
+            ((void (*)(s32))func_8012ADE4)(p1); \
+            return 1; \
+        } \
+        *(s16 *)(p1 + 6) = out.vx; \
+        *(s16 *)(p1 + 0xa) = out.vy; \
+        *(s16 *)(p1 + 0xe) = out.vz; \
+        return 1; \
+    }
+
 #endif