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timer0 #32

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Darkress merged 6 commits from timer0 into main 2023-06-17 18:45:24 +02:00
Conversation 0 Commits 6 Files Changed 36 +24 -2
1 changed files with 24 additions and 2 deletions
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de/darkress/pic16f84sim/microcontroller/Timer.java
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@@ -2,11 +2,13 @@ package de.darkress.pic16f84sim.microcontroller;
public class Timer public class Timer
{ {
private boolean getPrescalerAsssignment() { private static int cyclesToTimerIncrease = getPrescalerFactor();
private static boolean getPrescalerAsssignment() {
return (Memory.getOption() & 0x08) == 0x08; return (Memory.getOption() & 0x08) == 0x08;
} }
private int getPrescalerFactor() { private static int getPrescalerFactor() {
final int MULTIPLIER = 2; final int MULTIPLIER = 2;
int prescalerPower = Memory.getOption() & 0x07; int prescalerPower = Memory.getOption() & 0x07;
int prescaler = (int)Math.pow(2, prescalerPower); int prescaler = (int)Math.pow(2, prescalerPower);
@@ -16,4 +18,24 @@ public class Timer
} }
return prescaler; 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();
}
}
} }