implemented Clrf Instruction

de/darkress/pic16f84sim/Main.java

@@ -12,9 +12,8 @@ class Main
     public static void main(String[] args) {
 
         ArrayList<Command> program = new ArrayList<>();
-        Memory.clearCarryBit();
-        Memory.setRegister(0x14, 0B00000001); //240 << 224
-        program.add(CommandDecoder.decode(0x0C94));
+        Memory.setRegister(0x14, 0xFF);
+        program.add(CommandDecoder.decode(0x0194));
         for(int i = 0; i < program.size(); i++)
         {
             program.get(ProgramCounter.getPc()).execute();

de/darkress/pic16f84sim/commands/Iorwf.java

@@ -1,27 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Iorwf extends FileRegisterCommandUtils implements Command
-{
-    private final int address;
-    private final boolean destinationBit;
-
-    public Iorwf(int input)
-    {
-        address = input & 0x007F;
-        destinationBit = checkDestinationBit(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address) | Memory.workingRegister;
-
-        checkZeroBit(result);
-
-        writeToDestination(destinationBit, address, result);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Movf.java

@@ -1,27 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Movf extends FileRegisterCommandUtils implements Command
-{
-    private final int address;
-    private final boolean destinationBit;
-
-    public Movf(int input)
-    {
-        address = input & 0x007F;
-        destinationBit = checkDestinationBit(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address);
-
-        checkZeroBit(result);
-
-        writeToDestination(destinationBit, address, result);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Movwf.java

@@ -1,25 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Movwf extends FileRegisterCommandUtils implements Command
-{
-    private final int address;
-    private final boolean destinationBit;
-
-    public Movwf(int input)
-    {
-        address = input & 0x007F;
-        destinationBit = true;
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.workingRegister;
-
-        writeToDestination(destinationBit, address, result);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Rlf.java

@@ -1,35 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Rlf extends FileRegisterCommandUtils implements Command
-{
-    private final int address;
-    private final boolean destinationBit;
-
-    public Rlf(int input)
-    {
-        address = input & 0x007F;
-        destinationBit = checkDestinationBit(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int register = Memory.getRegister(address);
-        int newCarry = register >>7;
-        int oldCarry = Memory.getCarryBit();
-        register = ((register <<1) + oldCarry) & 0xFF;
-
-        if(newCarry == 1)
-        {
-            Memory.setCarryBit();
-        } else if(newCarry == 0){
-            Memory.clearCarryBit();
-        }
-
-        writeToDestination(destinationBit, address, register);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Rrf.java

@@ -1,35 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Rrf extends FileRegisterCommandUtils implements Command
-{
-    private final int address;
-    private final boolean destinationBit;
-
-    public Rrf(int input)
-    {
-        address = input & 0x007F;
-        destinationBit = checkDestinationBit(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int register = Memory.getRegister(address);
-        int newCarry = register & 0x01;
-        int oldCarry = Memory.getCarryBit();
-        register = (oldCarry << 7) + (register >>1);
-
-        if(newCarry == 1)
-        {
-            Memory.setCarryBit();
-        } else if(newCarry == 0){
-            Memory.clearCarryBit();
-        }
-
-        writeToDestination(destinationBit, address, register);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/decoder/CommandDecoder.java

@@ -23,13 +23,17 @@ public class CommandDecoder
             case 0xF00:
                 return new Incfsz(input);
             case 0x400:
-                return new Iorwf(input);
+                //iorwf();
+                break;
             case 0x800:
-                return new Movf(input);
+                //movf();
+                break;
             case 0xD00:
-                return new Rlf(input);
+                //rlf();
+                break;
             case 0xC00:
-                return new Rrf(input);
+                //rrf();
+                break;
             case 0x200:
                 //subwf();
                 break;
@@ -54,7 +58,8 @@ public class CommandDecoder
             case 0x100:
                 return new Clrw();
             case 0x80:
-                return new Movwf(input);
+                //movwf();
+                break;
         }
 
         switch(input & 0x3C00)

de/darkress/pic16f84sim/microcontroller/Memory.java

@@ -153,13 +153,9 @@ public class Memory
         memory[0x03] &= 0xFD;
     }
 
-    public static int getCarryBit()
+    public static boolean getCarryBit()
     {
-        if((memory[0x03] & 0x01) == 0x01)
-        {
-            return 1;
-        }
-        else return 0;
+        return (memory[0x03] & 0x01) == 0x01;
     }
 
     public static void setCarryBit()