diff --git a/src/spider/runtime/instr/Instr_000-01F.cpp b/src/spider/runtime/instr/Instr_000-01F.cpp
index 80b6f16..950bbe7 100644
--- a/src/spider/runtime/instr/Instr_000-01F.cpp
+++ b/src/spider/runtime/instr/Instr_000-01F.cpp
@@ -106,8 +106,7 @@ namespace spider {
         (this->*_post)();
     }
 
-    void CPU::EXS() { // THIS IS INCORRECT!!!
-        // TODO: Implement EXS
+    void CPU::EXS() {
         fetchOperDst();
         switch(_size){
             case 0b00: //byte
@@ -123,8 +122,6 @@ namespace spider {
                 _dst->_i64 = _dst->_i64;
                 break;
         }
-        _dst->_u32 = _dst->_u8;
-        (this->*_post)();
     }
 
     void CPU::INC() {