diff --git a/Source/Project64-rsp/Interpreter CPU.cpp b/Source/Project64-rsp/Interpreter CPU.cpp
index 58b620509..2c151c9d4 100644
--- a/Source/Project64-rsp/Interpreter CPU.cpp	
+++ b/Source/Project64-rsp/Interpreter CPU.cpp	
@@ -263,7 +263,7 @@ void BuildInterpreterCPU(void)
     RSP_Vector[15] = RSP_Vector_VMADH;
     RSP_Vector[16] = RSP_Vector_VADD;
     RSP_Vector[17] = RSP_Vector_VSUB;
-    RSP_Vector[18] = rsp_UnknownOpcode;
+    RSP_Vector[18] = RSP_Vector_VSUT;
     RSP_Vector[19] = RSP_Vector_VABS;
     RSP_Vector[20] = RSP_Vector_VADDC;
     RSP_Vector[21] = RSP_Vector_VSUBC;
diff --git a/Source/Project64-rsp/Interpreter Ops.cpp b/Source/Project64-rsp/Interpreter Ops.cpp
index 76b476c6c..2ea83f494 100644
--- a/Source/Project64-rsp/Interpreter Ops.cpp	
+++ b/Source/Project64-rsp/Interpreter Ops.cpp	
@@ -1266,6 +1266,10 @@ void RSP_Vector_VSUB(void)
     RSP_Vect[RSPOpC.vd] = Result;
 }
 
+void RSP_Vector_VSUT(void)
+{
+}
+
 void RSP_Vector_VABS(void)
 {
     RSPVector Result;
diff --git a/Source/Project64-rsp/Interpreter Ops.h b/Source/Project64-rsp/Interpreter Ops.h
index dff58441e..a1ebddd81 100644
--- a/Source/Project64-rsp/Interpreter Ops.h	
+++ b/Source/Project64-rsp/Interpreter Ops.h	
@@ -89,6 +89,7 @@ void RSP_Vector_VMADN(void);
 void RSP_Vector_VMADH(void);
 void RSP_Vector_VADD(void);
 void RSP_Vector_VSUB(void);
+void RSP_Vector_VSUT(void);
 void RSP_Vector_VABS(void);
 void RSP_Vector_VADDC(void);
 void RSP_Vector_VSUBC(void);
diff --git a/Source/Project64-rsp/cpu/RSPOpcode.h b/Source/Project64-rsp/cpu/RSPOpcode.h
index 1a3fc9d03..92a7c6ee6 100644
--- a/Source/Project64-rsp/cpu/RSPOpcode.h
+++ b/Source/Project64-rsp/cpu/RSPOpcode.h
@@ -167,6 +167,7 @@ enum RSPVectorOpCodes
     RSP_VECTOR_VMADH = 15,
     RSP_VECTOR_VADD = 16,
     RSP_VECTOR_VSUB = 17,
+    RSP_VECTOR_VSUT = 18,
     RSP_VECTOR_VABS = 19,
     RSP_VECTOR_VADDC = 20,
     RSP_VECTOR_VSUBC = 21,
diff --git a/Source/Project64-rsp/cpu/RSPiInstruction.cpp b/Source/Project64-rsp/cpu/RSPiInstruction.cpp
index 93cc239e2..58fe8f3f2 100644
--- a/Source/Project64-rsp/cpu/RSPiInstruction.cpp
+++ b/Source/Project64-rsp/cpu/RSPiInstruction.cpp
@@ -421,6 +421,10 @@ void RSPInstruction::DecodeCop2Name(void)
             strcpy(m_Name, "VABS");
             sprintf(m_Param, "$v%d, $v%d, $v%d%s", m_Instruction.vd, m_Instruction.vs, m_Instruction.vt, ElementSpecifier(m_Instruction.e));
             break;
+        case RSP_VECTOR_VSUT:
+            strcpy(m_Name, "VSUT");
+            strcpy(m_Param, "");
+            break;
         case RSP_VECTOR_VADDC:
             strcpy(m_Name, "VADDC");
             sprintf(m_Param, "$v%d, $v%d, $v%d%s", m_Instruction.vd, m_Instruction.vs, m_Instruction.vt, ElementSpecifier(m_Instruction.e));