package ch.epfl.gameboj.component.memory;

import java.util.Arrays;

import ch.epfl.gameboj.Preconditions;

public final class Ram {

    private final Byte[] memory;

    public Ram(int size) throws IllegalArgumentException{
        if (size < 0) {
            throw new IllegalArgumentException();
        }else {
            memory = new Byte[size];
        }

    }

    public int size() {
        return memory.length;
    }

    public final int read(int index) throws IndexOutOfBoundsException {
      return Byte.toUnsignedInt(memory[java.util.Objects.checkIndex(index,memory.length)]);
    }

    public void write(int index, int value) {
        memory[java.util.Objects.checkIndex(index,memory.length)] = (byte) Preconditions.checkBits8(value);
    }
}