static Pokey()
{
for (int i = 0; i < Mame.MAXPOKEYS; i++)
_pokey[i] = new POKEYregisters();
}
public override int start(Mame.MachineSound msound)
{
intf = (POKEYinterface)msound.sound_interface;
poly9 = new byte[0x1ff + 1];
rand9 = new byte[0x1ff + 1];
poly17 = new byte[0x1ffff + 1];
rand17 = new byte[0x1ffff + 1];
/* initialize the poly counters */
poly_init(poly4, 4, 3, 1, 0x00004);
poly_init(poly5, 5, 3, 2, 0x00008);
poly_init(poly9, 9, 2, 7, 0x00080);
poly_init(poly17, 17, 7, 10, 0x18000);
/* initialize the random arrays */
rand_init(rand9, 9, 2, 7, 0x00080);
rand_init(rand17, 17, 7, 10, 0x18000);
for (int chip = 0; chip < intf.num; chip++)
{
_pokey[chip] = new POKEYregisters();
string name = "";
//memset(p, 0, sizeof(struct POKEYregisters));
_pokey[chip].samplerate_24_8 = (uint)((Mame.Machine.sample_rate) != 0 ? (intf.baseclock << 8) / Mame.Machine.sample_rate : 1);
_pokey[chip].divisor[CHAN1] = 4;
_pokey[chip].divisor[CHAN2] = 4;
_pokey[chip].divisor[CHAN3] = 4;
_pokey[chip].divisor[CHAN4] = 4;
_pokey[chip].clockmult = DIV_64;
_pokey[chip].KBCODE = 0x09; /* Atari 800 'no key' */
_pokey[chip].SKCTL = SK_RESET; /* let the RNG run after reset */
_pokey[chip].rtimer = Mame.Timer.timer_set(Mame.Timer.TIME_NEVER, chip, null);
_pokey[chip].pot_r[0] = intf.pot0_r[chip];
_pokey[chip].pot_r[1] = intf.pot1_r[chip];
_pokey[chip].pot_r[2] = intf.pot2_r[chip];
_pokey[chip].pot_r[3] = intf.pot3_r[chip];
_pokey[chip].pot_r[4] = intf.pot4_r[chip];
_pokey[chip].pot_r[5] = intf.pot5_r[chip];
_pokey[chip].pot_r[6] = intf.pot6_r[chip];
_pokey[chip].pot_r[7] = intf.pot7_r[chip];
_pokey[chip].allpot_r = intf.allpot_r[chip];
_pokey[chip].serin_r = intf.serin_r[chip];
_pokey[chip].serout_w = intf.serout_w[chip];
_pokey[chip].interrupt_cb = intf.interrupt_cb[chip];
name = Mame.sprintf(name, "Pokey #%d", chip);
_pokey[chip].channel = Mame.stream_init(name, intf.mixing_level[chip], Mame.Machine.sample_rate, chip, _update[chip]);
if (_pokey[chip].channel == -1)
{
Mame.printf("failed to initialize sound channel");
return 1;
}
}
return 0;
}