feat: small interrupt optimization

src/cpu.rs

@@ -127,7 +127,7 @@ impl Cpu {
             self.halted = false;
         }
 
-        if self.ime {
+        if self.ime && self.mmu.ie != 0x00 {
             // @TODO aggregate all of this interrupts in the MMU, as there's
             // a lot of redundant code involved in here which complicates the
             // readability and maybe performance of this code

src/pad.rs

@@ -115,7 +115,7 @@ impl Pad {
         }
 
         // signals that a JoyPad interrupt is pending to be
-        // handled as a key pressed has been done
+        // handled as a key press has been performed
         self.int_pad = true;
     }