void ISystemBase.setupBase()
{
// inititalize system components
m_cpu = new MOS6502();
if (m_bLoadHELLO)
{
m_cpu.installRAMBank(60); // memory needs to go up to EFFF
}
else
{
m_cpu.installRAMBank(8);
}
m_pia = new MC6820("PIA", m_cpu, 0xD010);
// note: Apple 1 has no interrupt lines connected
m_pia.OutputB = receiveDsp;
// setup display
m_VideoInfo = new VideoInfoStruct();
m_VideoInfo.Rows = 24;
m_VideoInfo.Cols = 40;
m_VideoInfo.CharHeight = 8;
m_VideoInfo.CharWidth = 8;
m_VideoInfo.FontColor = Color.Green;
m_VideoInfo.BackColor = Color.Black;
m_iCursorX = m_iCursorY = 0;
m_ScreenBuffer = new char[m_VideoInfo.Rows][];
for (int r = 0; r < m_VideoInfo.Rows; r++)
{
m_ScreenBuffer[r] = new char[m_VideoInfo.Cols];
for (int c = 0; c < m_VideoInfo.Cols; c++)
{
m_ScreenBuffer[r][c] = ' ';
}
}
m_bNeedRefresh = false;
m_DisplayQueue = new Queue <byte>(10);
// setup keyboard
m_keymap = Apple1KeyMapFactory.Build("DE");
// load ROMs
loadROMs();
m_cpu.Reset();
}
void ISystemBase.setupBase()
{
// inititalize system components
m_cpu = new MOS6502();
m_cpu.installRAMBank(64);
m_cpu.registerMemoryAccess(0xF001, readDsp, writeDsp);
m_cpu.registerMemoryAccess(0xF004, readKbd, writeKbd);
// setup display
m_VideoInfo = new VideoInfoStruct();
m_VideoInfo.Rows = 25;
m_VideoInfo.Cols = 40;
m_VideoInfo.CharHeight = 8;
m_VideoInfo.CharWidth = 8;
m_VideoInfo.FontColor = Color.Orange;
m_VideoInfo.BackColor = Color.Black;
m_iCursorX = m_iCursorY = 0;
m_ScreenBuffer = new char[m_VideoInfo.Rows][];
for (int r = 0; r < m_VideoInfo.Rows; r++)
{
m_ScreenBuffer[r] = new char[m_VideoInfo.Cols];
for (int c = 0; c < m_VideoInfo.Cols; c++)
{
m_ScreenBuffer[r][c] = ' ';
}
}
m_bNeedRefresh = false;
m_DisplayQueue = new Queue <byte>(10);
m_KeyboardQueue = new Queue <byte>(5);
// load ROMs
loadROMs();
m_cpu.Reset();
}
void ISystemBase.setupBase()
{
// inititalize system components
m_cpu = new MOS6502();
m_cpu.installRAMBank(32);
RAMextension ram = new RAMextension(m_cpu, 0xE800, 2); // for BASIC v2
m_pia1 = new MOS6520("PIA1", m_cpu, 0xE810);
m_pia2 = new MOS6520("PIA2", m_cpu, 0xE820);
m_via = new MOS6522("VIA", m_cpu, 0xE840);
// set I/O and interupt lines
m_pia1.OutputA = receive_PIA1_A;
m_pia1.InterruptLine = m_cpu.signalInterrupt;
m_pia2.InterruptLine = m_cpu.signalInterrupt;
m_via.InterruptLine = m_cpu.signalInterrupt;
initKeyboard();
// setup display
m_VideoInfo = new VideoInfoStruct();
m_VideoInfo.Rows = 25;
m_VideoInfo.Cols = 40;
m_VideoInfo.CharHeight = 8;
m_VideoInfo.CharWidth = 8;
m_VideoInfo.FontColor = Color.Green;
m_VideoInfo.BackColor = Color.Black;
// setup screen buffer
m_ScreenBuffer = new byte[0x0800];
m_cpu.registerMemoryAccess(0x8000, 0x8800, read, write);
// load ROMs
loadROMs();
m_cpu.Reset();
}
/// <summary>
/// test MOS6502
/// http://codegolf.stackexchange.com/questions/12844/emulate-a-mos-6502-cpu
/// </summary>
public void MOS6502_AllSuiteA()
{
MOS6502 cpu = new MOS6502();
cpu.installRAMBank(64);
cpu.loadProgram("ROMs\\MOS6502_AllSuiteA.bin", 0x4000);
// point reset vector to test routine
cpu.writeMemByte(0xFFFC, 0x00);
cpu.writeMemByte(0xFFFD, 0x40);
cpu.Reset();
cpu.Flag_B = true;
cpu.runUntil(0x45C0);
byte bResult = cpu.readMemByte(0x0210);
Assert.AreEqual(0xFF, bResult);
Assert.AreEqual(0x45C0, cpu.PC);
}