de/darkress/pic16f84sim/microcontroller/Timer.java

@@ -2,11 +2,13 @@ package de.darkress.pic16f84sim.microcontroller;
 
 public class Timer
 {
-    private boolean getPrescalerAsssignment() {
+    private static int cyclesToTimerIncrease = getPrescalerFactor();
+
+    private static boolean getPrescalerAsssignment() {
         return (Memory.getOption() & 0x08) == 0x08;
     }
 
-    private int getPrescalerFactor() {
+    private static int getPrescalerFactor() {
         final int MULTIPLIER = 2;
         int prescalerPower = Memory.getOption() & 0x07;
         int prescaler = (int)Math.pow(2, prescalerPower);
@@ -16,4 +18,24 @@ public class Timer
         }
         return prescaler;
     }
+
+    private static void increaseTimerRegister()
+    {
+        int timerRegister = Memory.getRegister(0x01);
+        timerRegister = (timerRegister + 1) % 256;
+        if(timerRegister == 0) //check for timer Overflow  --> interrupt
+        {
+            System.out.println("Timer Overflow");
+        }
+        Memory.setRegister(0x01, timerRegister);
+    }
+
+    public static void addToTimer(int increase)
+    {
+        cyclesToTimerIncrease -= increase; // TODO: Rethink everything
+        if(cyclesToTimerIncrease == 0)
+        {
+            cyclesToTimerIncrease = getPrescalerFactor();
+        }
+    }
 }