diff --git a/src/disasm.rs b/src/disasm.rs
index c10d745..237d1f2 100644
--- a/src/disasm.rs
+++ b/src/disasm.rs
@@ -712,7 +712,7 @@ impl Disassembler {
                 };
                 Mnemonic::POP_M(mem)
             }
-            0x90 => Mnemonic::NOP(),
+            0x90 => Mnemonic::NOP,
 
             0x91 => Mnemonic::XCHG_AX(Register::CX),
             0x92 => Mnemonic::XCHG_AX(Register::DX),
diff --git a/src/instructions.rs b/src/instructions.rs
index 0d194f7..55041c1 100644
--- a/src/instructions.rs
+++ b/src/instructions.rs
@@ -21,7 +21,7 @@ impl Instruction {
         Instruction {
             addr: 0,
             raw: Vec::new(),
-            mnemonic: Mnemonic::NOP(),
+            mnemonic: Mnemonic::NOP,
         }
     }
 }
@@ -58,7 +58,7 @@ impl fmt::Display for Instruction {
 // which then add all variants and also create the matching logic for
 // src/disasm.rs decode_instructions()
 pub enum Mnemonic {
-    NOP(),
+    NOP,
     // ADD
     ADD_FromReg(ModRmTarget, Register), // From Register into either Memory or Register
     ADD_ToReg(ModRmTarget, Register),   // From either Memory or Register into Reigster
diff --git a/src/interpreter/interpreter.rs b/src/interpreter/interpreter.rs
index 595dc5d..f9bbfbc 100644
--- a/src/interpreter/interpreter.rs
+++ b/src/interpreter/interpreter.rs
@@ -115,6 +115,7 @@ impl Interpreter {
                     ModRmTarget::Register(crate::register::Register::AX),
                     ArithmeticOperand::Immediate(ImmediateOperand::Word(src_word)),
                 )?,
+
                 /*
                  * PUSH
                  */
@@ -260,13 +261,19 @@ impl Interpreter {
                     ModRmTarget::Register(crate::register::Register::AX),
                     ArithmeticOperand::Immediate(ImmediateOperand::Word(src_word)),
                 )?,
+
                 /*
                  * Override
                  */
+                Mnemonic::OVERRIDE(_) => todo!(),
 
                 /*
                  * Decimal Adjust
                  */
+                Mnemonic::DAA => todo!(),
+                Mnemonic::DAS => todo!(),
+                Mnemonic::AAA => todo!(),
+                Mnemonic::AAS => todo!(),
 
                 /*
                  * SUB
@@ -477,6 +484,14 @@ impl Interpreter {
                     continue;
                 }
 
+                /*
+                 * Loops
+                 */
+                Mnemonic::LOOPNZ(_) => todo!(),
+                Mnemonic::LOOPZ(_) => todo!(),
+                Mnemonic::LOOP(_) => todo!(),
+                Mnemonic::JCXZ(_) => todo!(),
+
                 /*
                  * Test
                  */
@@ -600,10 +615,24 @@ impl Interpreter {
                 /*
                  * Push/Pop Flags
                  */
+                Mnemonic::PUSHF => todo!(),
+                Mnemonic::POPF => todo!(),
+                Mnemonic::SAHF => todo!(),
+                Mnemonic::LAHF => todo!(),
 
                 /*
                  * String Byte Operations
                  */
+                Mnemonic::MOVSB => todo!(),
+                Mnemonic::MOVSW => todo!(),
+                Mnemonic::CMPSB => todo!(),
+                Mnemonic::CMPSW => todo!(),
+                Mnemonic::STOSB => todo!(),
+                Mnemonic::STOSW => todo!(),
+                Mnemonic::LODSB => todo!(),
+                Mnemonic::LODSW => todo!(),
+                Mnemonic::SCASB => todo!(),
+                Mnemonic::SCASW => todo!(),
 
                 /*
                  * RET
@@ -620,6 +649,9 @@ impl Interpreter {
                     self.computer.regs.sp += w;
                     continue;
                 }
+                Mnemonic::IRET => todo!(),
+                Mnemonic::RETF => todo!(),
+                Mnemonic::RETF_Iw(_) => todo!(),
 
                 /*
                  * Load ES/DS Register
@@ -801,15 +833,24 @@ impl Interpreter {
                 /*
                  * IN
                  */
+                Mnemonic::IN_AL(_) => todo!(),
+                Mnemonic::IN_AX(_) => todo!(),
+                Mnemonic::IN_ALDX => todo!(),
+                Mnemonic::IN_AXDX => todo!(),
 
                 /*
                  * OUT
                  */
+                Mnemonic::OUT_AL(_) => todo!(),
+                Mnemonic::OUT_AX(_) => todo!(),
+                Mnemonic::OUT_ALDX => todo!(),
+                Mnemonic::OUT_AXDX => todo!(),
 
                 /*
                  * INT
                  */
                 Mnemonic::INT(id) => self.interpret_interrupt(id)?,
+                Mnemonic::INTO => todo!(),
 
                 /*
                  * Flag manipulation
@@ -825,10 +866,14 @@ impl Interpreter {
                 /*
                  * Repeat prefixes
                  */
+                Mnemonic::REPNZ => todo!(),
+                Mnemonic::REPZ => todo!(),
 
                 /*
                  * Adjust
                  */
+                Mnemonic::AAM(_) => todo!(),
+                Mnemonic::AAD(_) => todo!(),
 
                 /*
                  * Misc
@@ -837,7 +882,8 @@ impl Interpreter {
                     log::info!("lock#");
                     continue;
                 }
-                _ => log::info!("no action done"),
+                Mnemonic::XLAT => todo!(),
+                Mnemonic::NOP => {}
             }
 
             // Go to next instruction