Added Xorwf Instruction

de/darkress/pic16f84sim/Main.java

@@ -13,8 +13,8 @@ class Main
 
         ArrayList<Command> program = new ArrayList<>();
         Memory.workingRegister = 0x01;
-        Memory.setRegister(0x14, 0xA7); //240 << 224
-        program.add(CommandDecoder.decode(0x1C94));
+        Memory.setRegister(0x14, 0xA5); //240 << 224
+        program.add(CommandDecoder.decode(0x0694));
         for(int i = 0; i < program.size(); i++)
         {
             program.get(ProgramCounter.getPc()).execute();

de/darkress/pic16f84sim/commands/Andlw.java

@@ -1,7 +1,6 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Andlw extends LiteralCommandUtils implements Command
 {
@@ -19,6 +18,5 @@ public class Andlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
-        ProgramCounter.incPC();
     }
 }

de/darkress/pic16f84sim/commands/Bcf.java

@@ -1,26 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Bcf extends BitOrientedCommandUtils implements Command
-{
-    private final int address;
-    private int bitPlacement;
-
-    public Bcf(int input)
-    {
-        address = input & 0x007F;
-        bitPlacement = checkBitPlacement(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address);
-        result &= ~(1 << bitPlacement); //Mask n-th bit with 0
-
-        Memory.setRegister(address, result);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/BitOrientedCommandUtils.java

@@ -1,11 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-
-public class BitOrientedCommandUtils
-{
-    protected int checkBitPlacement(int input)
-    {
-        return ((input & 0x0380) >>7);
-    }
-}

de/darkress/pic16f84sim/commands/Bsf.java

@@ -1,26 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Bsf extends BitOrientedCommandUtils implements Command
-{
-    private final int address;
-    private int bitPlacement;
-
-    public Bsf(int input)
-    {
-        address = input & 0x007F;
-        bitPlacement = checkBitPlacement(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address);
-        result |= (1 << bitPlacement);
-
-        Memory.setRegister(address, result);
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Btfsc.java

@@ -1,29 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Btfsc extends BitOrientedCommandUtils implements Command
-{
-    private final int address;
-    private int bitPlacement;
-
-    public Btfsc(int input)
-    {
-        address = input & 0x007F;
-        bitPlacement = checkBitPlacement(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address);
-
-        if((result & (1 << bitPlacement)) == 0) //Test if bit is clear
-        {
-            ProgramCounter.incPC();
-        }
-
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Btfss.java

@@ -1,29 +0,0 @@
-package de.darkress.pic16f84sim.commands;
-
-import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
-
-public class Btfss extends BitOrientedCommandUtils implements Command
-{
-    private final int address;
-    private int bitPlacement;
-
-    public Btfss(int input)
-    {
-        address = input & 0x007F;
-        bitPlacement = checkBitPlacement(input);
-    }
-
-    @Override
-    public void execute()
-    {
-        int result = Memory.getRegister(address);
-
-        if((result & (1 << bitPlacement)) > 0) //Test if bit is set
-        {
-            ProgramCounter.incPC();
-        }
-
-        ProgramCounter.incPC();
-    }
-}

de/darkress/pic16f84sim/commands/Decfsz.java

@@ -25,7 +25,8 @@ public class Decfsz extends FileRegisterCommandUtils implements Command
 
         if((result % 256) == 0)
         {
-            ProgramCounter.incPC();
+            Nop nop = new Nop();
+            nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
         }
         ProgramCounter.incPC();
     }

de/darkress/pic16f84sim/commands/Incfsz.java

@@ -25,7 +25,8 @@ public class Incfsz extends FileRegisterCommandUtils implements Command
 
         if((result % 256) == 0)
         {
-            ProgramCounter.incPC();
+            Nop nop = new Nop();
+            nop.execute(); // TODO: What happens if an interrupt gets triggered during the nop execution?
         }
         ProgramCounter.incPC();
     }

de/darkress/pic16f84sim/commands/Iorlw.java

@@ -1,7 +1,6 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Iorlw extends LiteralCommandUtils implements Command
 {
@@ -19,6 +18,5 @@ public class Iorlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
-        ProgramCounter.incPC();
     }
 }

de/darkress/pic16f84sim/commands/Sublw.java

@@ -1,7 +1,6 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Sublw extends LiteralCommandUtils implements Command
 {
@@ -42,6 +41,5 @@ public class Sublw extends LiteralCommandUtils implements Command
         checkDigitCarryBit(literal);
 
         Memory.workingRegister = result % 256;
-        ProgramCounter.incPC();
     }
 }

de/darkress/pic16f84sim/commands/Xorlw.java

@@ -1,7 +1,6 @@
 package de.darkress.pic16f84sim.commands;
 
 import de.darkress.pic16f84sim.microcontroller.Memory;
-import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
 
 public class Xorlw extends LiteralCommandUtils implements Command
 {
@@ -19,6 +18,5 @@ public class Xorlw extends LiteralCommandUtils implements Command
         checkZeroBit(result);
 
         Memory.workingRegister = result % 256;
-        ProgramCounter.incPC();
     }
 }

de/darkress/pic16f84sim/decoder/CommandDecoder.java

@@ -57,19 +57,25 @@ public class CommandDecoder
         switch(input & 0x3C00)
         {
             case 0x1000:
-                return new Bcf(input);
+                //bcf();
+                break;
             case 0x1400:
-                return new Bsf(input);
+                //bsf();
+                break;
             case 0x1800:
-                return new Btfsc(input);
+                //btfsc();
+                break;
             case 0x1C00:
-               return new Btfss(input);
+                //btfss();
+                break;
         }
 
         switch(input & 0x3E00)
         {
             case 0x3E00:
+                //addlw();
                 return new Addlw(input);
+                //break;
             case 0x3C00:
                 return new Sublw(input);
         }