From 21ee79f6ef0d67b89fce521ea70dd7db00f02595 Mon Sep 17 00:00:00 2001
From: Darkress <30271678+DarkressX@users.noreply.github.com>
Date: Wed, 7 Jun 2023 20:20:35 +0200
Subject: [PATCH] Added Xorwf Instruction

---
 de/darkress/pic16f84sim/Main.java             |  2 +-
 de/darkress/pic16f84sim/commands/Xorwf.java   | 27 +++++++++++++++++++
 .../pic16f84sim/decoder/CommandDecoder.java   |  3 +--
 3 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 de/darkress/pic16f84sim/commands/Xorwf.java

diff --git a/de/darkress/pic16f84sim/Main.java b/de/darkress/pic16f84sim/Main.java
index 6f512c2..74f4780 100644
--- a/de/darkress/pic16f84sim/Main.java
+++ b/de/darkress/pic16f84sim/Main.java
@@ -14,7 +14,7 @@ class Main
         ArrayList<Command> program = new ArrayList<>();
         Memory.workingRegister = 0x01;
         Memory.setRegister(0x14, 0xA5); //240 << 224
-        program.add(CommandDecoder.decode(0x0E94));
+        program.add(CommandDecoder.decode(0x0694));
         for(int i = 0; i < program.size(); i++)
         {
             program.get(ProgramCounter.getPc()).execute();
diff --git a/de/darkress/pic16f84sim/commands/Xorwf.java b/de/darkress/pic16f84sim/commands/Xorwf.java
new file mode 100644
index 0000000..c18646d
--- /dev/null
+++ b/de/darkress/pic16f84sim/commands/Xorwf.java
@@ -0,0 +1,27 @@
+package de.darkress.pic16f84sim.commands;
+
+import de.darkress.pic16f84sim.microcontroller.Memory;
+import de.darkress.pic16f84sim.microcontroller.ProgramCounter;
+
+public class Xorwf extends FileRegisterCommandUtils implements Command
+{
+    private final int address;
+    private final boolean destinationBit;
+
+    public Xorwf(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();
+    }
+}
diff --git a/de/darkress/pic16f84sim/decoder/CommandDecoder.java b/de/darkress/pic16f84sim/decoder/CommandDecoder.java
index 5b4ef6c..9c2bf34 100644
--- a/de/darkress/pic16f84sim/decoder/CommandDecoder.java
+++ b/de/darkress/pic16f84sim/decoder/CommandDecoder.java
@@ -35,8 +35,7 @@ public class CommandDecoder
             case 0xE00:
                 return new Swapf(input);
             case 0x600:
-                //xorwf();
-                break;
+                return new Xorwf(input);
             case 0x3900:
                 return new Andlw(input);
             case 0x3800:
-- 
2.49.1