public MOS6569(C64 c64, C64Display disp, MOS6510 CPU, SystemRam ram, CharacterRom characterRom, ColorRam colorRam)
{
_c64 = c64;
_display = disp;
_cpu = CPU;
_ram = ram;
_characterRom = characterRom;
_colorRam = colorRam;
int i;
matrix_base = 0;
char_base = 0;
bitmap_base = 0;
// Allocate GC Handles, to pin buffers
// AllocateHandles();
// Get bitmap info
//unsafe
//{
// chunky_ptr = chunky_line_start = _display.BitmapBase;
//}
_chunkyLineStartIndex = 0;
_chunkyIndex = 0;
xmod = disp.BitmapXMod;
// Initialize VIC registers
mx8 = 0;
ctrl1 = ctrl2 = 0;
lpx = lpy = 0;
me = mxe = mye = mdp = mmc = 0;
vbase = irq_flag = irq_mask = 0;
clx_spr = clx_bgr = 0;
cia_vabase = 0;
ec = b0c = b1c = b2c = b3c = mm0 = mm1 = 0;
// already 0 for .NET
//for (i = 0; i < 8; i++) mx[i] = my[i] = sc[i] = 0;
// Initialize other variables
raster_y = unchecked((UInt32)(TOTAL_RASTERS - 1));
rc = 7;
irq_raster = vc = vc_base = x_scroll = y_scroll = 0;
dy_start = ROW24_YSTART;
dy_stop = ROW24_YSTOP;
ml_index = 0;
cycle = 1;
display_idx = 0;
display_state = false;
border_on = ud_border_on = vblanking = false;
lp_triggered = draw_this_line = false;
spr_dma_on = spr_disp_on = 0;
for (i = 0; i < 8; i++)
{
mc[i] = 63;
spr_ptr[i] = 0;
}
frame_skipped = false;
skip_counter = 1;
// Preset colors
disp.InitColors(colors);
// default to black
ec_color = b0c_color = b1c_color = b2c_color = b3c_color = mm0_color = mm1_color = colors[0];
for (i = 0; i < spr_color.Length; i++) spr_color[i] = colors[0];
}
public MOS6510(C64 c64, SystemRam ram, BasicRom basicRom, KernalRom kernelRom, CharacterRom charRom, ColorRam colorRam)
{
TheC64 = c64;
_ram = ram;
_basicRom = basicRom;
_kernalRom = kernelRom;
_characterRom = charRom;
_colorRam = colorRam;
a = x = y = 0;
sp = 0xff;
n_flag = z_flag = 0;
v_flag = c_flag = d_flag = b_flag = i_flag = false;
dfff_byte = 0x55;
BALow = false;
first_irq_cycle = first_nmi_cycle = 0;
#if DEBUG_INSTRUCTIONS
debugLogger = new DebugLog(this, false);
#endif
}
public C64(EmulatorIOAdapter ioAdapter)
{
int i, j;
emulationSpeed = 0.0f;
// The thread is not yet running
thread_running = false;
quit_thyself = false;
have_a_break = false;
// Open display
TheDisplay = new C64Display(this, ioAdapter);
// Allocate RAM/ROM memory
//RAM = new byte[0x10000];
_ram = new SystemRam();
_colorRam = new ColorRam();
_basicRom = new BasicRom();
_kernalRom = new KernalRom();
_characterRom = new CharacterRom();
//Basic = new byte[0x2000];
//Kernal = new byte[0x2000];
//Char = new byte[0x1000];
//Color = new byte[0x0400];
_ram1541 = new Drive1541Ram();
_rom1541 = new Drive1541Rom();
//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);
_ram.InitializeWithPowerUpPattern();
_colorRam.InitializeWithRandomValues();
TheDisplay.Initialize();
#if false
//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);
// }
//}
#endif
// 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;
// TODO
frameTimer.Reset();
frameTimer.Start();
}