public IEC(C64Display display)
{
the_display = display;
int i;
// Create drives 8..11
for (i = 0; i < drive.Length; i++)
{
drive[i] = null; // Important because UpdateLEDs is called from the drive constructors (via set_error)
}
if (!GlobalPrefs.ThePrefs.Emul1541Proc)
{
DriveType[] prefDrives = GlobalPrefs.ThePrefs.DriveType;
for (i = 0; i < prefDrives.Length; i++)
{
if (prefDrives[i] == DriveType.DRVTYPE_DIR)
{
drive[i] = new FSDrive(this, GlobalPrefs.ThePrefs.DrivePath[i]);
}
else if (prefDrives[i] == DriveType.DRVTYPE_D64)
{
drive[i] = new D64Drive(this, GlobalPrefs.ThePrefs.DrivePath[i]);
}
else
{
drive[i] = new T64Drive(this, GlobalPrefs.ThePrefs.DrivePath[i]);
}
}
}
listener_active = talker_active = false;
listening = false;
}
const bool BALow = false; // used for the EmulateCycle.cs file to ignore this condition
#endregion
#region public methods
public MOS6502_1541(C64 c64, Job1541 job, C64Display disp, byte[] Ram, byte[] Rom)
{
the_c64 = c64;
the_job = job;
the_display = disp;
ram = Ram;
rom = Rom;
a = x = y = 0;
sp = 0xff;
n_flag = z_flag = 0;
v_flag = d_flag = c_flag = false;
i_flag = true;
via1_t1c = via1_t1l = via1_t2c = via1_t2l = 0;
via1_sr = 0;
via2_t1c = via2_t1l = via2_t2c = via2_t2l = 0;
via2_sr = 0;
first_irq_cycle = 0;
Idle = false;
}
public C64()
{
int i, j;
// The thread is not yet running
thread_running = false;
quit_thyself = false;
have_a_break = false;
// Open display
TheDisplay = new C64Display(this);
TheDisplay.Initialize();
// Allocate RAM/ROM memory
RAM = new byte[0x10000];
Basic = new byte[0x2000];
Kernal = new byte[0x2000];
Char = new byte[0x1000];
Color = new byte[0x0400];
RAM1541 = new byte[0x0800];
ROM1541 = new byte[0x4000];
// Create the chips
TheCPU = new MOS6510(this, RAM, Basic, Kernal, Char, Color);
TheJob1541 = new Job1541(RAM1541);
TheCPU1541 = new MOS6502_1541(this, TheJob1541, TheDisplay, RAM1541, ROM1541);
TheVIC = TheCPU.TheVIC = new MOS6569(this, TheDisplay, TheCPU, RAM, Char, Color);
TheSID = TheCPU.TheSID = new MOS6581(this);
TheCIA1 = TheCPU.TheCIA1 = new MOS6526_1(TheCPU, TheVIC);
TheCIA2 = TheCPU.TheCIA2 = TheCPU1541.TheCIA2 = new MOS6526_2(TheCPU, TheVIC, TheCPU1541);
TheIEC = TheCPU.TheIEC = new IEC(TheDisplay);
TheREU = TheCPU.TheREU = new REU(TheCPU);
unsafe
{
fixed(byte *pRAM = RAM, pColor = Color)
{
byte *p = pRAM;
// Initialize RAM with powerup pattern
for (i = 0; i < 512; i++)
{
for (j = 0; j < 64; j++)
{
*p++ = 0;
}
for (j = 0; j < 64; j++)
{
*p++ = 0xff;
}
}
Random rand = new Random();
p = pColor;
// Initialize color RAM with random values
for (i = 0; i < 1024; i++)
{
*p++ = (byte)(rand.Next() & 0x0f);
}
}
}
// Open joystick drivers if required
open_close_joysticks(false, false, GlobalPrefs.ThePrefs.Joystick1On, GlobalPrefs.ThePrefs.Joystick2On);
joykey = 0xff;
CycleCounter = 0;
// No need to check for state change.
state_change = false;
frameTimer.Reset();
frameTimer.Start();
}