XorlwInstruction (#1)

Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#1

de/darkress/pic16f84sim/Main.java

@@ -1,29 +1,18 @@
 package de.darkress.pic16f84sim;
 
-import de.darkress.pic16f84sim.microcontroller.Stack;
+import de.darkress.pic16f84sim.commands.Command;
+import de.darkress.pic16f84sim.decoder.CommandDecoder;
+import de.darkress.pic16f84sim.microcontroller.Memory;
+import java.util.ArrayList;
 
 class Main
 {
     public static void main(String[] args) {
-        /*
         ArrayList<Command> program = new ArrayList<>();
-        int input1 = 0x3EFF;
+        Memory.workingRegister = 0xAA;
+        int input1 = 0x3AFF;
         program.add(CommandDecoder.decode(input1));
         program.get(0).execute();
-        */
-
-
-        for(int i = 0; i < 8; i++)
-        {
-            Stack.push(i);
-        }
-
-        for(int i = 0; i < 16; i++)
-        {
-            System.out.println(Stack.peek());
-            Stack.pop();
-        }
-
 
     }
 }

de/darkress/pic16f84sim/commands/Xorlw.java

@@ -0,0 +1,22 @@
+package de.darkress.pic16f84sim.commands;
+
+import de.darkress.pic16f84sim.microcontroller.Memory;
+
+public class Xorlw extends CommandUtils implements Command
+{
+    private final int literal;
+
+    public Xorlw(int input)
+    {
+        literal = input & 0x00FF;
+    }
+    @Override
+    public void execute()
+    {
+        int result = literal ^ Memory.workingRegister;
+
+        checkZeroBit(result);
+
+        Memory.workingRegister = result % 256;
+    }
+}

de/darkress/pic16f84sim/decoder/CommandDecoder.java

@@ -55,8 +55,7 @@ public class CommandDecoder
             case 0x3800:
                 return new Iorlw(input);
             case 0x3A00:
-                //xorlw();
+                return new Xorlw(input);
-                break;
         }
 
         switch(input & 0x3F80)

de/darkress/pic16f84sim/microcontroller/ProgramCounter.java

@@ -15,4 +15,9 @@ public class ProgramCounter
     {
         ProgramCounter.PC = PC;
     }
+
+    public static void incPC()
+    {
+        PC++;
+    }
 }