[picodrive.git] / pico / cd / mcd.c

/*
 * PicoDrive
 * (C) notaz, 2007,2013
 *
 * This work is licensed under the terms of MAME license.
 * See COPYING file in the top-level directory.
 */

#include "../pico_int.h"
#include "../sound/ym2612.h"

extern unsigned char formatted_bram[4*0x10];

static unsigned int m68k_cycle_mult;

void (*PicoMCDopenTray)(void) = NULL;
void (*PicoMCDcloseTray)(void) = NULL;


PICO_INTERNAL void PicoInitMCD(void)
{
  SekInitS68k();
  Init_CD_Driver();
}

PICO_INTERNAL void PicoExitMCD(void)
{
  End_CD_Driver();
}

PICO_INTERNAL void PicoPowerMCD(void)
{
  int fmt_size = sizeof(formatted_bram);
  memset(Pico_mcd->prg_ram,    0, sizeof(Pico_mcd->prg_ram));
  memset(Pico_mcd->word_ram2M, 0, sizeof(Pico_mcd->word_ram2M));
  memset(Pico_mcd->pcm_ram,    0, sizeof(Pico_mcd->pcm_ram));
  memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram));
  memcpy(Pico_mcd->bram + sizeof(Pico_mcd->bram) - fmt_size,
    formatted_bram, fmt_size);
  memset(Pico_mcd->s68k_regs, 0, sizeof(Pico_mcd->s68k_regs));
  memset(&Pico_mcd->pcm, 0, sizeof(Pico_mcd->pcm));
  memset(&Pico_mcd->m, 0, sizeof(Pico_mcd->m));

  // cold reset state (tested)
  Pico_mcd->m.state_flags = PCD_ST_S68K_RST;
  Pico_mcd->m.busreq = 2;     // busreq on, s68k in reset
  Pico_mcd->s68k_regs[3] = 1; // 2M word RAM mode, m68k access
  memset(Pico_mcd->bios + 0x70, 0xff, 4);
}

PICO_INTERNAL int PicoResetMCD(void)
{
  // ??
  Reset_CD();
  LC89510_Reset();
  gfx_cd_reset();
#ifdef _ASM_CD_MEMORY_C
  //PicoMemResetCDdecode(1); // don't have to call this in 2M mode
#endif

  // use SRam.data for RAM cart
  if (PicoOpt & POPT_EN_MCD_RAMCART) {
    if (SRam.data == NULL)
      SRam.data = calloc(1, 0x12000);
  }
  else if (SRam.data != NULL) {
    free(SRam.data);
    SRam.data = NULL;
  }
  SRam.start = SRam.end = 0; // unused

  pcd_event_schedule(0, PCD_EVENT_CDC, 12500000/75);

  return 0;
}

static __inline void SekRunS68k(unsigned int to)
{
  int cyc_do;

  SekCycleAimS68k = to;
  if ((cyc_do = SekCycleAimS68k - SekCycleCntS68k) <= 0)
    return;

  SekCycleCntS68k += cyc_do;
#if defined(EMU_C68K)
  PicoCpuCS68k.cycles = cyc_do;
  CycloneRun(&PicoCpuCS68k);
  SekCycleCntS68k -= PicoCpuCS68k.cycles;
#elif defined(EMU_M68K)
  m68k_set_context(&PicoCpuMS68k);
  SekCycleCntS68k += m68k_execute(cyc_do) - cyc_do;
  m68k_set_context(&PicoCpuMM68k);
#elif defined(EMU_F68K)
  g_m68kcontext = &PicoCpuFS68k;
  SekCycleCntS68k += fm68k_emulate(cyc_do, 0, 0) - cyc_do;
  g_m68kcontext = &PicoCpuFM68k;
#endif
}


unsigned int pcd_cycles_m68k_to_s68k(unsigned int c)
{
  return (long long)c * m68k_cycle_mult >> 16;
}

/* events */
static void pcd_cdc_event(unsigned int now)
{
  // 75Hz CDC update
  Check_CD_Command();
  pcd_event_schedule(now, PCD_EVENT_CDC, 12500000/75);
}

static void pcd_int3_timer_event(unsigned int now)
{
  if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN3) {
    elprintf(EL_INTS|EL_CD, "s68k: timer irq 3");
    SekInterruptS68k(3);
  }

  if (Pico_mcd->s68k_regs[0x31] != 0)
    pcd_event_schedule(now, PCD_EVENT_TIMER3,
      Pico_mcd->s68k_regs[0x31] * 384);
}

static void pcd_gfx_event(unsigned int now)
{
  // update gfx chip
  if (Pico_mcd->rot_comp.Reg_58 & 0x8000) {
    Pico_mcd->rot_comp.Reg_58 &= 0x7fff;
    Pico_mcd->rot_comp.Reg_64  = 0;
    if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN1) {
      elprintf(EL_INTS  |EL_CD, "s68k: gfx_cd irq 1");
      SekInterruptS68k(1);
    }
  }
}

static void pcd_dma_event(unsigned int now)
{
  int ddx = Pico_mcd->s68k_regs[4] & 7;
	Update_CDC_TRansfer(ddx);
}

typedef void (event_cb)(unsigned int now);

/* times are in s68k (12.5MHz) cycles */
unsigned int pcd_event_times[PCD_EVENT_COUNT];
static unsigned int event_time_next;
static event_cb *pcd_event_cbs[PCD_EVENT_COUNT] = {
  [PCD_EVENT_CDC]      = pcd_cdc_event,
  [PCD_EVENT_TIMER3]   = pcd_int3_timer_event,
  [PCD_EVENT_GFX]      = pcd_gfx_event,
  [PCD_EVENT_DMA]      = pcd_dma_event,
};

void pcd_event_schedule(unsigned int now, enum pcd_event event, int after)
{
  unsigned int when;

  when = now + after;
  if (when == 0) {
    // event cancelled
    pcd_event_times[event] = 0;
    return;
  }

  when |= 1;

  elprintf(EL_CD, "cd: new event #%u %u->%u", event, now, when);
  pcd_event_times[event] = when;

  if (event_time_next == 0 || CYCLES_GT(event_time_next, when))
    event_time_next = when;
}

void pcd_event_schedule_s68k(enum pcd_event event, int after)
{
  if (SekCyclesLeftS68k > after)
    SekEndRunS68k(after);

  pcd_event_schedule(SekCyclesDoneS68k(), event, after);
}

static void pcd_run_events(unsigned int until)
{
  int oldest, oldest_diff, time;
  int i, diff;

  while (1) {
    oldest = -1, oldest_diff = 0x7fffffff;

    for (i = 0; i < PCD_EVENT_COUNT; i++) {
      if (pcd_event_times[i]) {
        diff = pcd_event_times[i] - until;
        if (diff < oldest_diff) {
          oldest_diff = diff;
          oldest = i;
        }
      }
    }

    if (oldest_diff <= 0) {
      time = pcd_event_times[oldest];
      pcd_event_times[oldest] = 0;
      elprintf(EL_CD, "cd: run event #%d %u", oldest, time);
      pcd_event_cbs[oldest](time);
    }
    else if (oldest_diff < 0x7fffffff) {
      event_time_next = pcd_event_times[oldest];
      break;
    }
    else {
      event_time_next = 0;
      break;
    }
  }

  if (oldest != -1)
    elprintf(EL_CD, "cd: next event #%d at %u",
      oldest, event_time_next);
}

int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync)
{
  #define now SekCycleCntS68k
  unsigned int s68k_target =
    (unsigned long long)m68k_target * m68k_cycle_mult >> 16;
  unsigned int target;

  elprintf(EL_CD, "s68k sync to %u, %u->%u",
    m68k_target, now, s68k_target);

  if (Pico_mcd->m.busreq != 1) { /* busreq/reset */
    SekCycleCntS68k = SekCycleAimS68k = s68k_target;
    pcd_run_events(m68k_target);
    return 0;
  }

  while (CYCLES_GT(s68k_target, now)) {
    if (event_time_next && CYCLES_GE(now, event_time_next))
      pcd_run_events(now);

    target = s68k_target;
    if (event_time_next && CYCLES_GT(target, event_time_next))
      target = event_time_next;

    SekRunS68k(target);
    if (m68k_poll_sync && Pico_mcd->m.m68k_poll_cnt == 0)
      break;
  }

  return s68k_target - now;
  #undef now
}

#define pcd_run_cpus_normal pcd_run_cpus
//#define pcd_run_cpus_lockstep pcd_run_cpus

static void SekSyncM68k(void);

static inline void pcd_run_cpus_normal(int m68k_cycles)
{
  SekCycleAim += m68k_cycles;
  if (SekShouldInterrupt())
    Pico_mcd->m.m68k_poll_cnt = 0;
  else if (Pico_mcd->m.m68k_poll_cnt >= 16) {
    int s68k_left = pcd_sync_s68k(SekCycleAim, 1);
    if (s68k_left <= 0) {
      elprintf(EL_CDPOLL, "m68k poll [%02x] x%d @%06x",
        Pico_mcd->m.m68k_poll_a, Pico_mcd->m.m68k_poll_cnt, SekPc);
      SekCycleCnt = SekCycleAim;
      return;
    }
    SekCycleCnt = SekCycleAim - (s68k_left * 40220 >> 16);
  }

  SekSyncM68k();
}

static inline void pcd_run_cpus_lockstep(int m68k_cycles)
{
  unsigned int target = SekCycleAim + m68k_cycles;
  do {
    SekCycleAim += 8;
    SekSyncM68k();
    pcd_sync_s68k(SekCycleAim, 0);
  } while (CYCLES_GT(target, SekCycleAim));

  SekCycleAim = target;
}

#define PICO_CD
#define CPUS_RUN(m68k_cycles) \
  pcd_run_cpus(m68k_cycles)

#include "../pico_cmn.c"


PICO_INTERNAL void PicoFrameMCD(void)
{
  if (!(PicoOpt&POPT_ALT_RENDERER))
    PicoFrameStart();

  // ~1.63 for NTSC, ~1.645 for PAL
  if (Pico.m.pal)
    m68k_cycle_mult = ((12500000ull << 16) / (50*312*488));
  else
    m68k_cycle_mult = ((12500000ull << 16) / (60*262*488)) + 1;

  PicoFrameHints();
}

void pcd_state_loaded(void)
{
  unsigned int cycles;
  int diff;

  pcd_state_loaded_mem();

  // old savestates..
  cycles = pcd_cycles_m68k_to_s68k(SekCycleAim);
  diff = cycles - SekCycleAimS68k;
  if (diff < -1000 || diff > 1000) {
    SekCycleCntS68k = SekCycleAimS68k = cycles;
  }
  if (pcd_event_times[PCD_EVENT_CDC] == 0) {
    pcd_event_schedule(SekCycleAimS68k, PCD_EVENT_CDC, 12500000/75);

    if (Pico_mcd->s68k_regs[0x31])
      pcd_event_schedule(SekCycleAimS68k, PCD_EVENT_TIMER3,
        Pico_mcd->s68k_regs[0x31] * 384);

    if (Pico_mcd->rot_comp.Reg_58 & 0x8000) {
      Pico_mcd->rot_comp.Reg_58 &= 0x7fff;
      Pico_mcd->rot_comp.Reg_64  = 0;
      if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN1)
        SekInterruptS68k(1);
    }
    if (Pico_mcd->scd.Status_CDC & 0x08)
	    Update_CDC_TRansfer(Pico_mcd->s68k_regs[4] & 7);
  }
}

// vim:shiftwidth=2:ts=2:expandtab
Commit	Line	Data
	1	/*
	2	* PicoDrive
	3	* (C) notaz, 2007,2013
	4	*
	5	* This work is licensed under the terms of MAME license.
	6	* See COPYING file in the top-level directory.
	7	*/
	8
	9	#include "../pico_int.h"
	10	#include "../sound/ym2612.h"
	11
	12	extern unsigned char formatted_bram[4*0x10];
	13
	14	static unsigned int m68k_cycle_mult;
	15
	16	void (*PicoMCDopenTray)(void) = NULL;
	17	void (*PicoMCDcloseTray)(void) = NULL;
	18
	19
	20	PICO_INTERNAL void PicoInitMCD(void)
	21	{
	22	SekInitS68k();
	23	Init_CD_Driver();
	24	}
	25
	26	PICO_INTERNAL void PicoExitMCD(void)
	27	{
	28	End_CD_Driver();
	29	}
	30
	31	PICO_INTERNAL void PicoPowerMCD(void)
	32	{
	33	int fmt_size = sizeof(formatted_bram);
	34	memset(Pico_mcd->prg_ram, 0, sizeof(Pico_mcd->prg_ram));
	35	memset(Pico_mcd->word_ram2M, 0, sizeof(Pico_mcd->word_ram2M));
	36	memset(Pico_mcd->pcm_ram, 0, sizeof(Pico_mcd->pcm_ram));
	37	memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram));
	38	memcpy(Pico_mcd->bram + sizeof(Pico_mcd->bram) - fmt_size,
	39	formatted_bram, fmt_size);
	40	memset(Pico_mcd->s68k_regs, 0, sizeof(Pico_mcd->s68k_regs));
	41	memset(&Pico_mcd->pcm, 0, sizeof(Pico_mcd->pcm));
	42	memset(&Pico_mcd->m, 0, sizeof(Pico_mcd->m));
	43
	44	// cold reset state (tested)
	45	Pico_mcd->m.state_flags = PCD_ST_S68K_RST;
	46	Pico_mcd->m.busreq = 2; // busreq on, s68k in reset
	47	Pico_mcd->s68k_regs[3] = 1; // 2M word RAM mode, m68k access
	48	memset(Pico_mcd->bios + 0x70, 0xff, 4);
	49	}
	50
	51	PICO_INTERNAL int PicoResetMCD(void)
	52	{
	53	// ??
	54	Reset_CD();
	55	LC89510_Reset();
	56	gfx_cd_reset();
	57	#ifdef _ASM_CD_MEMORY_C
	58	//PicoMemResetCDdecode(1); // don't have to call this in 2M mode
	59	#endif
	60
	61	// use SRam.data for RAM cart
	62	if (PicoOpt & POPT_EN_MCD_RAMCART) {
	63	if (SRam.data == NULL)
	64	SRam.data = calloc(1, 0x12000);
	65	}
	66	else if (SRam.data != NULL) {
	67	free(SRam.data);
	68	SRam.data = NULL;
	69	}
	70	SRam.start = SRam.end = 0; // unused
	71
	72	pcd_event_schedule(0, PCD_EVENT_CDC, 12500000/75);
	73
	74	return 0;
	75	}
	76
	77	static __inline void SekRunS68k(unsigned int to)
	78	{
	79	int cyc_do;
	80
	81	SekCycleAimS68k = to;
	82	if ((cyc_do = SekCycleAimS68k - SekCycleCntS68k) <= 0)
	83	return;
	84
	85	SekCycleCntS68k += cyc_do;
	86	#if defined(EMU_C68K)
	87	PicoCpuCS68k.cycles = cyc_do;
	88	CycloneRun(&PicoCpuCS68k);
	89	SekCycleCntS68k -= PicoCpuCS68k.cycles;
	90	#elif defined(EMU_M68K)
	91	m68k_set_context(&PicoCpuMS68k);
	92	SekCycleCntS68k += m68k_execute(cyc_do) - cyc_do;
	93	m68k_set_context(&PicoCpuMM68k);
	94	#elif defined(EMU_F68K)
	95	g_m68kcontext = &PicoCpuFS68k;
	96	SekCycleCntS68k += fm68k_emulate(cyc_do, 0, 0) - cyc_do;
	97	g_m68kcontext = &PicoCpuFM68k;
	98	#endif
	99	}
	100
	101
	102	unsigned int pcd_cycles_m68k_to_s68k(unsigned int c)
	103	{
	104	return (long long)c * m68k_cycle_mult >> 16;
	105	}
	106
	107	/* events */
	108	static void pcd_cdc_event(unsigned int now)
	109	{
	110	// 75Hz CDC update
	111	Check_CD_Command();
	112	pcd_event_schedule(now, PCD_EVENT_CDC, 12500000/75);
	113	}
	114
	115	static void pcd_int3_timer_event(unsigned int now)
	116	{
	117	if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN3) {
	118	elprintf(EL_INTS\|EL_CD, "s68k: timer irq 3");
	119	SekInterruptS68k(3);
	120	}
	121
	122	if (Pico_mcd->s68k_regs[0x31] != 0)
	123	pcd_event_schedule(now, PCD_EVENT_TIMER3,
	124	Pico_mcd->s68k_regs[0x31] * 384);
	125	}
	126
	127	static void pcd_gfx_event(unsigned int now)
	128	{
	129	// update gfx chip
	130	if (Pico_mcd->rot_comp.Reg_58 & 0x8000) {
	131	Pico_mcd->rot_comp.Reg_58 &= 0x7fff;
	132	Pico_mcd->rot_comp.Reg_64 = 0;
	133	if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN1) {
	134	elprintf(EL_INTS \|EL_CD, "s68k: gfx_cd irq 1");
	135	SekInterruptS68k(1);
	136	}
	137	}
	138	}
	139
	140	static void pcd_dma_event(unsigned int now)
	141	{
	142	int ddx = Pico_mcd->s68k_regs[4] & 7;
	143	Update_CDC_TRansfer(ddx);
	144	}
	145
	146	typedef void (event_cb)(unsigned int now);
	147
	148	/* times are in s68k (12.5MHz) cycles */
	149	unsigned int pcd_event_times[PCD_EVENT_COUNT];
	150	static unsigned int event_time_next;
	151	static event_cb *pcd_event_cbs[PCD_EVENT_COUNT] = {
	152	[PCD_EVENT_CDC] = pcd_cdc_event,
	153	[PCD_EVENT_TIMER3] = pcd_int3_timer_event,
	154	[PCD_EVENT_GFX] = pcd_gfx_event,
	155	[PCD_EVENT_DMA] = pcd_dma_event,
	156	};
	157
	158	void pcd_event_schedule(unsigned int now, enum pcd_event event, int after)
	159	{
	160	unsigned int when;
	161
	162	when = now + after;
	163	if (when == 0) {
	164	// event cancelled
	165	pcd_event_times[event] = 0;
	166	return;
	167	}
	168
	169	when \|= 1;
	170
	171	elprintf(EL_CD, "cd: new event #%u %u->%u", event, now, when);
	172	pcd_event_times[event] = when;
	173
	174	if (event_time_next == 0 \|\| CYCLES_GT(event_time_next, when))
	175	event_time_next = when;
	176	}
	177
	178	void pcd_event_schedule_s68k(enum pcd_event event, int after)
	179	{
	180	if (SekCyclesLeftS68k > after)
	181	SekEndRunS68k(after);
	182
	183	pcd_event_schedule(SekCyclesDoneS68k(), event, after);
	184	}
	185
	186	static void pcd_run_events(unsigned int until)
	187	{
	188	int oldest, oldest_diff, time;
	189	int i, diff;
	190
	191	while (1) {
	192	oldest = -1, oldest_diff = 0x7fffffff;
	193
	194	for (i = 0; i < PCD_EVENT_COUNT; i++) {
	195	if (pcd_event_times[i]) {
	196	diff = pcd_event_times[i] - until;
	197	if (diff < oldest_diff) {
	198	oldest_diff = diff;
	199	oldest = i;
	200	}
	201	}
	202	}
	203
	204	if (oldest_diff <= 0) {
	205	time = pcd_event_times[oldest];
	206	pcd_event_times[oldest] = 0;
	207	elprintf(EL_CD, "cd: run event #%d %u", oldest, time);
	208	pcd_event_cbs[oldest](time);
	209	}
	210	else if (oldest_diff < 0x7fffffff) {
	211	event_time_next = pcd_event_times[oldest];
	212	break;
	213	}
	214	else {
	215	event_time_next = 0;
	216	break;
	217	}
	218	}
	219
	220	if (oldest != -1)
	221	elprintf(EL_CD, "cd: next event #%d at %u",
	222	oldest, event_time_next);
	223	}
	224
	225	int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync)
	226	{
	227	#define now SekCycleCntS68k
	228	unsigned int s68k_target =
	229	(unsigned long long)m68k_target * m68k_cycle_mult >> 16;
	230	unsigned int target;
	231
	232	elprintf(EL_CD, "s68k sync to %u, %u->%u",
	233	m68k_target, now, s68k_target);
	234
	235	if (Pico_mcd->m.busreq != 1) { /* busreq/reset */
	236	SekCycleCntS68k = SekCycleAimS68k = s68k_target;
	237	pcd_run_events(m68k_target);
	238	return 0;
	239	}
	240
	241	while (CYCLES_GT(s68k_target, now)) {
	242	if (event_time_next && CYCLES_GE(now, event_time_next))
	243	pcd_run_events(now);
	244
	245	target = s68k_target;
	246	if (event_time_next && CYCLES_GT(target, event_time_next))
	247	target = event_time_next;
	248
	249	SekRunS68k(target);
	250	if (m68k_poll_sync && Pico_mcd->m.m68k_poll_cnt == 0)
	251	break;
	252	}
	253
	254	return s68k_target - now;
	255	#undef now
	256	}
	257
	258	#define pcd_run_cpus_normal pcd_run_cpus
	259	//#define pcd_run_cpus_lockstep pcd_run_cpus
	260
	261	static void SekSyncM68k(void);
	262
	263	static inline void pcd_run_cpus_normal(int m68k_cycles)
	264	{
	265	SekCycleAim += m68k_cycles;
	266	if (SekShouldInterrupt())
	267	Pico_mcd->m.m68k_poll_cnt = 0;
	268	else if (Pico_mcd->m.m68k_poll_cnt >= 16) {
	269	int s68k_left = pcd_sync_s68k(SekCycleAim, 1);
	270	if (s68k_left <= 0) {
	271	elprintf(EL_CDPOLL, "m68k poll [%02x] x%d @%06x",
	272	Pico_mcd->m.m68k_poll_a, Pico_mcd->m.m68k_poll_cnt, SekPc);
	273	SekCycleCnt = SekCycleAim;
	274	return;
	275	}
	276	SekCycleCnt = SekCycleAim - (s68k_left * 40220 >> 16);
	277	}
	278
	279	SekSyncM68k();
	280	}
	281
	282	static inline void pcd_run_cpus_lockstep(int m68k_cycles)
	283	{
	284	unsigned int target = SekCycleAim + m68k_cycles;
	285	do {
	286	SekCycleAim += 8;
	287	SekSyncM68k();
	288	pcd_sync_s68k(SekCycleAim, 0);
	289	} while (CYCLES_GT(target, SekCycleAim));
	290
	291	SekCycleAim = target;
	292	}
	293
	294	#define PICO_CD
	295	#define CPUS_RUN(m68k_cycles) \
	296	pcd_run_cpus(m68k_cycles)
	297
	298	#include "../pico_cmn.c"
	299
	300
	301	PICO_INTERNAL void PicoFrameMCD(void)
	302	{
	303	if (!(PicoOpt&POPT_ALT_RENDERER))
	304	PicoFrameStart();
	305
	306	// ~1.63 for NTSC, ~1.645 for PAL
	307	if (Pico.m.pal)
	308	m68k_cycle_mult = ((12500000ull << 16) / (50312488));
	309	else
	310	m68k_cycle_mult = ((12500000ull << 16) / (60262488)) + 1;
	311
	312	PicoFrameHints();
	313	}
	314
	315	void pcd_state_loaded(void)
	316	{
	317	unsigned int cycles;
	318	int diff;
	319
	320	pcd_state_loaded_mem();
	321
	322	// old savestates..
	323	cycles = pcd_cycles_m68k_to_s68k(SekCycleAim);
	324	diff = cycles - SekCycleAimS68k;
	325	if (diff < -1000 \|\| diff > 1000) {
	326	SekCycleCntS68k = SekCycleAimS68k = cycles;
	327	}
	328	if (pcd_event_times[PCD_EVENT_CDC] == 0) {
	329	pcd_event_schedule(SekCycleAimS68k, PCD_EVENT_CDC, 12500000/75);
	330
	331	if (Pico_mcd->s68k_regs[0x31])
	332	pcd_event_schedule(SekCycleAimS68k, PCD_EVENT_TIMER3,
	333	Pico_mcd->s68k_regs[0x31] * 384);
	334
	335	if (Pico_mcd->rot_comp.Reg_58 & 0x8000) {
	336	Pico_mcd->rot_comp.Reg_58 &= 0x7fff;
	337	Pico_mcd->rot_comp.Reg_64 = 0;
	338	if (Pico_mcd->s68k_regs[0x33] & PCDS_IEN1)
	339	SekInterruptS68k(1);
	340	}
	341	if (Pico_mcd->scd.Status_CDC & 0x08)
	342	Update_CDC_TRansfer(Pico_mcd->s68k_regs[4] & 7);
	343	}
	344	}
	345
	346	// vim:shiftwidth=2:ts=2:expandtab