implemented decfsz Instruction

de/darkress/pic16f84sim/Main.java

@@ -15,8 +15,11 @@ class Main
         int input1 = 0x27FF;
         program.add(CommandDecoder.decode(0x3011)); //Write 0x11 to W
         Memory.setRegister(0x14, 0x01);
-        program.add(CommandDecoder.decode(0x0314));
-        for(int i = 0; i < 2; i++)
+        program.add(CommandDecoder.decode(0x0B94));
+        program.add(CommandDecoder.decode(0x0B94));
+        program.add(CommandDecoder.decode(0x0B94));
+        program.add(CommandDecoder.decode(0x3F05));
+        for(int i = 0; i < program.size(); i++)
         {
             program.get(ProgramCounter.getPc()).execute();
         }

de/darkress/pic16f84sim/commands/Decfsz.java

@@ -22,6 +22,12 @@ public class Decfsz extends FileRegisterCommandUtils implements Command
         checkZeroBit(result);
 
         writeToDestination(destinationBit, address, result % 256); // Catch underflow
+
+        if((result % 256) == 0)
+        {
+            Nop nop = new Nop();
+            nop.execute();
+        }
         ProgramCounter.incPC();
     }
 }

de/darkress/pic16f84sim/decoder/CommandDecoder.java

@@ -17,8 +17,7 @@ public class CommandDecoder
             case 0x300:
                 return new Decf(input);
             case 0xB00:
-                //decfsz();
-                break;
+                return new Decfsz(input);
             case 0xA00:
                 //incf();
                 break;