diff --git a/evm/src/cpu/kernel/interpreter.rs b/evm/src/cpu/kernel/interpreter.rs
index 066a1360..b2ba563f 100644
--- a/evm/src/cpu/kernel/interpreter.rs
+++ b/evm/src/cpu/kernel/interpreter.rs
@@ -226,7 +226,7 @@ impl<'a> Interpreter<'a> {
             0x19 => self.run_not(),                                     // "NOT",
             0x1a => self.run_byte(),                                    // "BYTE",
             0x1b => self.run_shl(),                                     // "SHL",
-            0x1c => todo!(),                                            // "SHR",
+            0x1c => self.run_shr(),                                     // "SHR",
             0x1d => todo!(),                                            // "SAR",
             0x20 => self.run_keccak256(),                               // "KECCAK256",
             0x30 => todo!(),                                            // "ADDRESS",
diff --git a/evm/src/cpu/kernel/tests/ripemd.rs b/evm/src/cpu/kernel/tests/ripemd.rs
index d354237b..3da46c42 100644
--- a/evm/src/cpu/kernel/tests/ripemd.rs
+++ b/evm/src/cpu/kernel/tests/ripemd.rs
@@ -48,13 +48,11 @@ fn test_ripemd() -> Result<()> {
         let final_stack: Vec<U256> = run_with_kernel(&kernel, initial_offset, initial_stack)?
             .stack()
             .to_vec();
-
         let actual = final_stack[0];
-    
-        let read_out: Vec<String> = final_stack.iter().map(|x| format!("{:x}", x)).rev().collect();
-        println!("{:x?}", read_out);
-
         assert_eq!(actual, expected);
+
+        // let read_out: Vec<String> = final_stack.iter().map(|x| format!("{:x}", x)).rev().collect();
+        // println!("{:x?}", read_out);
     }
     Ok(())
 }