public void That_Writing_a_Ram_bank_writes_bank3()
{
var ram = new RAM512();
ram.bankSettings[3].SelectedPage = 32;
ram.SetContents(0xC000, new byte[] { 1, 2, 3, 4 }, 0, 4);
Assert.AreEqual(1, ram.memory[32][0]);
Assert.AreEqual(2, ram.memory[32][1]);
Assert.AreEqual(3, ram.memory[32][2]);
Assert.AreEqual(4, ram.memory[32][3]);
}
public void ThatRAMPageGettingWorks()
{
var ram = new RAM512();
ram.bankSettings[0].SelectedPage = 10;
ram.bankSettings[1].SelectedPage = 11;
ram.bankSettings[2].SelectedPage = 12;
ram.bankSettings[3].SelectedPage = 13;
Assert.AreEqual(10, ram.GetData(ram.HandledPorts[0]));
Assert.AreEqual(11, ram.GetData(ram.HandledPorts[1]));
Assert.AreEqual(12, ram.GetData(ram.HandledPorts[2]));
Assert.AreEqual(13, ram.GetData(ram.HandledPorts[3]));
}
public void ThatRAMPageSettingWorks()
{
var ram = new RAM512();
ram.SetData(ram.HandledPorts[0], 1);
ram.SetData(ram.HandledPorts[1], 2);
ram.SetData(ram.HandledPorts[2], 3);
ram.SetData(ram.HandledPorts[3], 4);
Assert.AreEqual(1, ram.bankSettings[0].SelectedPage);
Assert.AreEqual(2, ram.bankSettings[1].SelectedPage);
Assert.AreEqual(3, ram.bankSettings[2].SelectedPage);
Assert.AreEqual(4, ram.bankSettings[3].SelectedPage);
}
public void That_Reading_ContentsWorks()
{
var ram = new RAM512();
ram.memory[0][1] = 24;
ram.memory[0][10] = 24;
ram.memory[0][20] = 24;
var b0 = ram.GetContents(0x0000, 21);
var b1 = ram.GetContents(0x4000, 21);
var b2 = ram.GetContents(0x8000, 21);
var b3 = ram.GetContents(0xC000, 21);
Assert.That(b1, Has.Length.EqualTo(21));
Assert.AreEqual(b0, b1);
Assert.AreEqual(b0, b2);
Assert.AreEqual(b0, b3);
Assert.AreEqual(24, b0[1]);
Assert.AreEqual(24, b0[10]);
Assert.AreEqual(24, b0[20]);
}
public void ThatRamIsDevidedIntoFourBanks()
{
var ram = new RAM512();
Assert.That(ram.bankSettings, Has.Length.EqualTo(4));
}
