[picodrive.git] / pico / sek.c

/*\r
 * PicoDrive\r
 * (c) Copyright Dave, 2004\r
 * (C) notaz, 2006-2009\r
 *\r
 * This work is licensed under the terms of MAME license.\r
 * See COPYING file in the top-level directory.\r
 */\r
\r
#include "pico_int.h"\r
#include "memory.h"\r
\r
\r
unsigned int SekCycleCnt;\r
unsigned int SekCycleAim;\r
\r
\r
/* context */\r
// Cyclone 68000\r
#ifdef EMU_C68K\r
struct Cyclone PicoCpuCM68k;\r
#endif\r
// MUSASHI 68000\r
#ifdef EMU_M68K\r
m68ki_cpu_core PicoCpuMM68k;\r
#endif\r
// FAME 68000\r
#ifdef EMU_F68K\r
M68K_CONTEXT PicoCpuFM68k;\r
#endif\r
\r
\r
/* callbacks */\r
#ifdef EMU_C68K\r
// interrupt acknowledgment\r
static int SekIntAck(int level)\r
{\r
  // try to emulate VDP's reaction to 68000 int ack\r
  if     (level == 4) { Pico.video.pending_ints  =  0;    elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
  else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
  PicoCpuCM68k.irq = 0;\r
  return CYCLONE_INT_ACK_AUTOVECTOR;\r
}\r
\r
static void SekResetAck(void)\r
{\r
  elprintf(EL_ANOMALY, "Reset encountered @ %06x", SekPc);\r
}\r
\r
static int SekUnrecognizedOpcode()\r
{\r
  unsigned int pc;\r
  pc = SekPc;\r
  elprintf(EL_ANOMALY, "Unrecognized Opcode @ %06x", pc);\r
  // see if we are still in a mapped region\r
  pc &= 0x00ffffff;\r
  if (map_flag_set(m68k_read16_map[pc >> M68K_MEM_SHIFT])) {\r
    elprintf(EL_STATUS|EL_ANOMALY, "m68k crash @%06x", pc);\r
    PicoCpuCM68k.cycles = 0;\r
    PicoCpuCM68k.state_flags |= 1;\r
    return 1;\r
  }\r
#ifdef EMU_M68K // debugging cyclone\r
  {\r
    extern int have_illegal;\r
    have_illegal = 1;\r
  }\r
#endif\r
  return 0;\r
}\r
#endif\r
\r
\r
#ifdef EMU_M68K\r
static int SekIntAckM68K(int level)\r
{\r
  if     (level == 4) { Pico.video.pending_ints  =  0;    elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
  else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
  CPU_INT_LEVEL = 0;\r
  return M68K_INT_ACK_AUTOVECTOR;\r
}\r
\r
static int SekTasCallback(void)\r
{\r
  return 0; // no writeback\r
}\r
#endif\r
\r
\r
#ifdef EMU_F68K\r
static void SekIntAckF68K(unsigned level)\r
{\r
  if     (level == 4) {\r
    Pico.video.pending_ints = 0;\r
    elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCyclesDone());\r
  }\r
  else if(level == 6) {\r
    Pico.video.pending_ints &= ~0x20;\r
    elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCyclesDone());\r
  }\r
  PicoCpuFM68k.interrupts[0] = 0;\r
}\r
#endif\r
\r
\r
PICO_INTERNAL void SekInit(void)\r
{\r
#ifdef EMU_C68K\r
  CycloneInit();\r
  memset(&PicoCpuCM68k,0,sizeof(PicoCpuCM68k));\r
  PicoCpuCM68k.IrqCallback=SekIntAck;\r
  PicoCpuCM68k.ResetCallback=SekResetAck;\r
  PicoCpuCM68k.UnrecognizedCallback=SekUnrecognizedOpcode;\r
  PicoCpuCM68k.flags=4;   // Z set\r
#endif\r
#ifdef EMU_M68K\r
  {\r
    void *oldcontext = m68ki_cpu_p;\r
    m68k_set_context(&PicoCpuMM68k);\r
    m68k_set_cpu_type(M68K_CPU_TYPE_68000);\r
    m68k_init();\r
    m68k_set_int_ack_callback(SekIntAckM68K);\r
    m68k_set_tas_instr_callback(SekTasCallback);\r
    //m68k_pulse_reset();\r
    m68k_set_context(oldcontext);\r
  }\r
#endif\r
#ifdef EMU_F68K\r
  {\r
    void *oldcontext = g_m68kcontext;\r
    g_m68kcontext = &PicoCpuFM68k;\r
    memset(&PicoCpuFM68k, 0, sizeof(PicoCpuFM68k));\r
    fm68k_init();\r
    PicoCpuFM68k.iack_handler = SekIntAckF68K;\r
    PicoCpuFM68k.sr = 0x2704; // Z flag\r
    g_m68kcontext = oldcontext;\r
  }\r
#endif\r
}\r
\r
\r
// Reset the 68000:\r
PICO_INTERNAL int SekReset(void)\r
{\r
  if (Pico.rom==NULL) return 1;\r
\r
#ifdef EMU_C68K\r
  CycloneReset(&PicoCpuCM68k);\r
#endif\r
#ifdef EMU_M68K\r
  m68k_set_context(&PicoCpuMM68k); // if we ever reset m68k, we always need it's context to be set\r
  m68ki_cpu.sp[0]=0;\r
  m68k_set_irq(0);\r
  m68k_pulse_reset();\r
  REG_USP = 0; // ?\r
#endif\r
#ifdef EMU_F68K\r
  {\r
    g_m68kcontext = &PicoCpuFM68k;\r
    fm68k_reset();\r
  }\r
#endif\r
\r
  return 0;\r
}\r
\r
void SekStepM68k(void)\r
{\r
  SekCycleAim=SekCycleCnt+1;\r
#if defined(EMU_CORE_DEBUG)\r
  SekCycleCnt+=CM_compareRun(1, 0);\r
#elif defined(EMU_C68K)\r
  PicoCpuCM68k.cycles=1;\r
  CycloneRun(&PicoCpuCM68k);\r
  SekCycleCnt+=1-PicoCpuCM68k.cycles;\r
#elif defined(EMU_M68K)\r
  SekCycleCnt+=m68k_execute(1);\r
#elif defined(EMU_F68K)\r
  SekCycleCnt+=fm68k_emulate(1, 0);\r
#endif\r
}\r
\r
PICO_INTERNAL void SekSetRealTAS(int use_real)\r
{\r
#ifdef EMU_C68K\r
  CycloneSetRealTAS(use_real);\r
#endif\r
#ifdef EMU_F68K\r
  // TODO\r
#endif\r
}\r
\r
// Pack the cpu into a common format:\r
// XXX: rename\r
PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub)\r
{\r
  unsigned int pc=0;\r
\r
#if defined(EMU_C68K)\r
  struct Cyclone *context = is_sub ? &PicoCpuCS68k : &PicoCpuCM68k;\r
  memcpy(cpu,context->d,0x40);\r
  pc=context->pc-context->membase;\r
  *(unsigned int *)(cpu+0x44)=CycloneGetSr(context);\r
  *(unsigned int *)(cpu+0x48)=context->osp;\r
  cpu[0x4c] = context->irq;\r
  cpu[0x4d] = context->state_flags & 1;\r
#elif defined(EMU_M68K)\r
  void *oldcontext = m68ki_cpu_p;\r
  m68k_set_context(is_sub ? &PicoCpuMS68k : &PicoCpuMM68k);\r
  memcpy(cpu,m68ki_cpu_p->dar,0x40);\r
  pc=m68ki_cpu_p->pc;\r
  *(unsigned int  *)(cpu+0x44)=m68k_get_reg(NULL, M68K_REG_SR);\r
  *(unsigned int  *)(cpu+0x48)=m68ki_cpu_p->sp[m68ki_cpu_p->s_flag^SFLAG_SET];\r
  cpu[0x4c] = CPU_INT_LEVEL>>8;\r
  cpu[0x4d] = CPU_STOPPED;\r
  m68k_set_context(oldcontext);\r
#elif defined(EMU_F68K)\r
  M68K_CONTEXT *context = is_sub ? &PicoCpuFS68k : &PicoCpuFM68k;\r
  memcpy(cpu,context->dreg,0x40);\r
  pc=context->pc;\r
  *(unsigned int  *)(cpu+0x44)=context->sr;\r
  *(unsigned int  *)(cpu+0x48)=context->asp;\r
  cpu[0x4c] = context->interrupts[0];\r
  cpu[0x4d] = (context->execinfo & FM68K_HALTED) ? 1 : 0;\r
#endif\r
\r
  *(unsigned int *)(cpu+0x40) = pc;\r
  *(unsigned int *)(cpu+0x50) =\r
    is_sub ? SekCycleCntS68k : SekCycleCnt;\r
}\r
\r
PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub)\r
{\r
#if defined(EMU_C68K)\r
  struct Cyclone *context = is_sub ? &PicoCpuCS68k : &PicoCpuCM68k;\r
  CycloneSetSr(context, *(unsigned int *)(cpu+0x44));\r
  context->osp=*(unsigned int *)(cpu+0x48);\r
  memcpy(context->d,cpu,0x40);\r
  context->membase = 0;\r
  context->pc = *(unsigned int *)(cpu+0x40);\r
  CycloneUnpack(context, NULL); // rebase PC\r
  context->irq = cpu[0x4c];\r
  context->state_flags = 0;\r
  if (cpu[0x4d])\r
    context->state_flags |= 1;\r
#elif defined(EMU_M68K)\r
  void *oldcontext = m68ki_cpu_p;\r
  m68k_set_context(is_sub ? &PicoCpuMS68k : &PicoCpuMM68k);\r
  m68k_set_reg(M68K_REG_SR, *(unsigned int *)(cpu+0x44));\r
  memcpy(m68ki_cpu_p->dar,cpu,0x40);\r
  m68ki_cpu_p->pc=*(unsigned int *)(cpu+0x40);\r
  m68ki_cpu_p->sp[m68ki_cpu_p->s_flag^SFLAG_SET]=*(unsigned int *)(cpu+0x48);\r
  CPU_INT_LEVEL = cpu[0x4c] << 8;\r
  CPU_STOPPED = cpu[0x4d];\r
  m68k_set_context(oldcontext);\r
#elif defined(EMU_F68K)\r
  M68K_CONTEXT *context = is_sub ? &PicoCpuFS68k : &PicoCpuFM68k;\r
  memcpy(context->dreg,cpu,0x40);\r
  context->pc =*(unsigned int *)(cpu+0x40);\r
  context->sr =*(unsigned int *)(cpu+0x44);\r
  context->asp=*(unsigned int *)(cpu+0x48);\r
  context->interrupts[0] = cpu[0x4c];\r
  context->execinfo &= ~FM68K_HALTED;\r
  if (cpu[0x4d]&1) context->execinfo |= FM68K_HALTED;\r
#endif\r
  if (is_sub)\r
    SekCycleCntS68k = *(unsigned int *)(cpu+0x50);\r
  else\r
    SekCycleCnt = *(unsigned int *)(cpu+0x50);\r
}\r
\r
\r
/* idle loop detection, not to be used in CD mode */\r
#ifdef EMU_C68K\r
#include "cpu/cyclone/tools/idle.h"\r
#endif\r
\r
static unsigned short **idledet_ptrs = NULL;\r
static int idledet_count = 0, idledet_bads = 0;\r
static int idledet_start_frame = 0;\r
\r
#if 0\r
#define IDLE_STATS 1\r
unsigned int idlehit_addrs[128], idlehit_counts[128];\r
\r
void SekRegisterIdleHit(unsigned int pc)\r
{\r
  int i;\r
  for (i = 0; i < 127 && idlehit_addrs[i]; i++) {\r
    if (idlehit_addrs[i] == pc) {\r
      idlehit_counts[i]++;\r
      return;\r
    }\r
  }\r
  idlehit_addrs[i] = pc;\r
  idlehit_counts[i] = 1;\r
  idlehit_addrs[i+1] = 0;\r
}\r
#endif\r
\r
void SekInitIdleDet(void)\r
{\r
  unsigned short **tmp = realloc(idledet_ptrs, 0x200*4);\r
  if (tmp == NULL) {\r
    free(idledet_ptrs);\r
    idledet_ptrs = NULL;\r
  }\r
  else\r
    idledet_ptrs = tmp;\r
  idledet_count = idledet_bads = 0;\r
  idledet_start_frame = Pico.m.frame_count + 360;\r
#ifdef IDLE_STATS\r
  idlehit_addrs[0] = 0;\r
#endif\r
\r
#ifdef EMU_C68K\r
  CycloneInitIdle();\r
#endif\r
#ifdef EMU_F68K\r
  fm68k_emulate(0, 1);\r
#endif\r
}\r
\r
int SekIsIdleReady(void)\r
{\r
	return (Pico.m.frame_count >= idledet_start_frame);\r
}\r
\r
int SekIsIdleCode(unsigned short *dst, int bytes)\r
{\r
  // printf("SekIsIdleCode %04x %i\n", *dst, bytes);\r
  switch (bytes)\r
  {\r
    case 2:\r
      if ((*dst & 0xf000) != 0x6000)     // not another branch\r
        return 1;\r
      break;\r
    case 4:\r
      if ( (*dst & 0xff3f) == 0x4a38 || // tst.x ($xxxx.w); tas ($xxxx.w)\r
           (*dst & 0xc1ff) == 0x0038 || // move.x ($xxxx.w), dX\r
           (*dst & 0xf13f) == 0xb038)   // cmp.x ($xxxx.w), dX\r
        return 1;\r
      if (PicoAHW & (PAHW_MCD|PAHW_32X))\r
        break;\r
      // with no addons, there should be no need to wait\r
      // for byte change anywhere\r
      if ( (*dst & 0xfff8) == 0x4a10 || // tst.b ($aX)\r
           (*dst & 0xfff8) == 0x4a28)   // tst.b ($xxxx,a0)\r
        return 1;\r
      break;\r
    case 6:\r
      if ( ((dst[1] & 0xe0) == 0xe0 && ( // RAM and\r
            *dst == 0x4a39 ||            //   tst.b ($xxxxxxxx)\r
            *dst == 0x4a79 ||            //   tst.w ($xxxxxxxx)\r
            *dst == 0x4ab9 ||            //   tst.l ($xxxxxxxx)\r
            (*dst & 0xc1ff) == 0x0039 || //   move.x ($xxxxxxxx), dX\r
            (*dst & 0xf13f) == 0xb039))||//   cmp.x ($xxxxxxxx), dX\r
            *dst == 0x0838 ||            // btst $X, ($xxxx.w) [6 byte op]\r
            (*dst & 0xffbf) == 0x0c38)   // cmpi.{b,w} $X, ($xxxx.w)\r
        return 1;\r
      break;\r
    case 8:\r
      if ( ((dst[2] & 0xe0) == 0xe0 && ( // RAM and\r
            *dst == 0x0839 ||            //   btst $X, ($xxxxxxxx.w) [8 byte op]\r
            (*dst & 0xffbf) == 0x0c39))||//   cmpi.{b,w} $X, ($xxxxxxxx)\r
            *dst == 0x0cb8)              // cmpi.l $X, ($xxxx.w)\r
        return 1;\r
      break;\r
    case 12:\r
      if (PicoAHW & (PAHW_MCD|PAHW_32X))\r
        break;\r
      if ( (*dst & 0xf1f8) == 0x3010 && // move.w (aX), dX\r
            (dst[1]&0xf100) == 0x0000 && // arithmetic\r
            (dst[3]&0xf100) == 0x0000)   // arithmetic\r
        return 1;\r
      break;\r
  }\r
\r
  return 0;\r
}\r
\r
int SekRegisterIdlePatch(unsigned int pc, int oldop, int newop, void *ctx)\r
{\r
  int is_main68k = 1;\r
  u16 *target;\r
  uptr v;\r
\r
#if   defined(EMU_C68K)\r
  struct Cyclone *cyc = ctx;\r
  is_main68k = cyc == &PicoCpuCM68k;\r
  pc -= cyc->membase;\r
#elif defined(EMU_F68K)\r
  is_main68k = ctx == &PicoCpuFM68k;\r
#endif\r
  pc &= ~0xff000000;\r
  if (!(newop&0x200))\r
  elprintf(EL_IDLE, "idle: patch %06x %04x %04x %c %c #%i", pc, oldop, newop,\r
    (newop&0x200)?'n':'y', is_main68k?'m':'s', idledet_count);\r
\r
  // XXX: probably shouldn't patch RAM too\r
  v = m68k_read16_map[pc >> M68K_MEM_SHIFT];\r
  if (!(v & 0x80000000))\r
    target = (u16 *)((v << 1) + pc);\r
  else {\r
    if (++idledet_bads > 128)\r
      return 2; // remove detector\r
    return 1; // don't patch\r
  }\r
\r
  if (idledet_count >= 0x200 && (idledet_count & 0x1ff) == 0) {\r
    unsigned short **tmp = realloc(idledet_ptrs, (idledet_count+0x200)*4);\r
    if (tmp == NULL)\r
      return 1;\r
    idledet_ptrs = tmp;\r
  }\r
\r
  idledet_ptrs[idledet_count++] = target;\r
\r
  return 0;\r
}\r
\r
void SekFinishIdleDet(void)\r
{\r
#ifdef EMU_C68K\r
  CycloneFinishIdle();\r
#endif\r
#ifdef EMU_F68K\r
  fm68k_emulate(0, 2);\r
#endif\r
  while (idledet_count > 0)\r
  {\r
    unsigned short *op = idledet_ptrs[--idledet_count];\r
    if      ((*op & 0xfd00) == 0x7100)\r
      *op &= 0xff, *op |= 0x6600;\r
    else if ((*op & 0xfd00) == 0x7500)\r
      *op &= 0xff, *op |= 0x6700;\r
    else if ((*op & 0xfd00) == 0x7d00)\r
      *op &= 0xff, *op |= 0x6000;\r
    else\r
      elprintf(EL_STATUS|EL_IDLE, "idle: don't know how to restore %04x", *op);\r
  }\r
}\r
\r
\r
#if defined(CPU_CMP_R) || defined(CPU_CMP_W)\r
#include "debug.h"\r
\r
struct ref_68k {\r
  u32 dar[16];\r
  u32 pc;\r
  u32 sr;\r
  u32 cycles;\r
  u32 pc_prev;\r
};\r
struct ref_68k ref_68ks[2];\r
static int current_68k;\r
\r
void SekTrace(int is_s68k)\r
{\r
  struct ref_68k *x68k = &ref_68ks[is_s68k];\r
  u32 pc = is_s68k ? SekPcS68k : SekPc;\r
  u32 sr = is_s68k ? SekSrS68k : SekSr;\r
  u32 cycles = is_s68k ? SekCycleCntS68k : SekCycleCnt;\r
  u32 r;\r
  u8 cmd;\r
#ifdef CPU_CMP_W\r
  int i;\r
\r
  if (is_s68k != current_68k) {\r
    current_68k = is_s68k;\r
    cmd = CTL_68K_SLAVE | current_68k;\r
    tl_write(&cmd, sizeof(cmd));\r
  }\r
  if (pc != x68k->pc) {\r
    x68k->pc = pc;\r
    tl_write_uint(CTL_68K_PC, x68k->pc);\r
  }\r
  if (sr != x68k->sr) {\r
    x68k->sr = sr;\r
    tl_write_uint(CTL_68K_SR, x68k->sr);\r
  }\r
  for (i = 0; i < 16; i++) {\r
    r = is_s68k ? SekDarS68k(i) : SekDar(i);\r
    if (r != x68k->dar[i]) {\r
      x68k->dar[i] = r;\r
      tl_write_uint(CTL_68K_R + i, r);\r
    }\r
  }\r
  tl_write_uint(CTL_68K_CYCLES, cycles);\r
#else\r
  int i, bad = 0;\r
\r
  while (1)\r
  {\r
    int ret = tl_read(&cmd, sizeof(cmd));\r
    if (ret == 0) {\r
      elprintf(EL_STATUS, "EOF");\r
      exit(1);\r
    }\r
    switch (cmd) {\r
    case CTL_68K_SLAVE:\r
    case CTL_68K_SLAVE + 1:\r
      current_68k = cmd & 1;\r
      break;\r
    case CTL_68K_PC:\r
      tl_read_uint(&x68k->pc);\r
      break;\r
    case CTL_68K_SR:\r
      tl_read_uint(&x68k->sr);\r
      break;\r
    case CTL_68K_CYCLES:\r
      tl_read_uint(&x68k->cycles);\r
      goto breakloop;\r
    default:\r
      if (CTL_68K_R <= cmd && cmd < CTL_68K_R + 0x10)\r
        tl_read_uint(&x68k->dar[cmd - CTL_68K_R]);\r
      else\r
        elprintf(EL_STATUS, "invalid cmd: %02x", cmd);\r
    }\r
  }\r
\r
breakloop:\r
  if (is_s68k != current_68k) {\r
		printf("bad 68k: %d %d\n", is_s68k, current_68k);\r
    bad = 1;\r
  }\r
  if (cycles != x68k->cycles) {\r
		printf("bad cycles: %u %u\n", cycles, x68k->cycles);\r
    bad = 1;\r
  }\r
  if ((pc ^ x68k->pc) & 0xffffff) {\r
		printf("bad PC: %08x %08x\n", pc, x68k->pc);\r
    bad = 1;\r
  }\r
  if (sr != x68k->sr) {\r
		printf("bad SR:  %03x %03x\n", sr, x68k->sr);\r
    bad = 1;\r
  }\r
  for (i = 0; i < 16; i++) {\r
    r = is_s68k ? SekDarS68k(i) : SekDar(i);\r
    if (r != x68k->dar[i]) {\r
		  printf("bad %c%d: %08x %08x\n", i < 8 ? 'D' : 'A', i & 7,\r
        r, x68k->dar[i]);\r
      bad = 1;\r
    }\r
  }\r
  if (bad) {\r
    for (i = 0; i < 8; i++)\r
			printf("D%d: %08x  A%d: %08x\n", i, x68k->dar[i],\r
        i, x68k->dar[i + 8]);\r
		printf("PC: %08x, %08x\n", x68k->pc, x68k->pc_prev);\r
		printf("SR: %04x\n", x68k->sr);\r
\r
    PDebugDumpMem();\r
    exit(1);\r
  }\r
  x68k->pc_prev = x68k->pc;\r
#endif\r
}\r
#endif // CPU_CMP_*\r
\r
#if defined(EMU_M68K) && M68K_INSTRUCTION_HOOK == OPT_SPECIFY_HANDLER\r
static unsigned char op_flags[0x400000/2] = { 0, };\r
static int atexit_set = 0;\r
\r
static void make_idc(void)\r
{\r
  FILE *f = fopen("idc.idc", "w");\r
  int i;\r
  if (!f) return;\r
  fprintf(f, "#include <idc.idc>\nstatic main() {\n");\r
  for (i = 0; i < 0x400000/2; i++)\r
    if (op_flags[i] != 0)\r
      fprintf(f, "  MakeCode(0x%06x);\n", i*2);\r
  fprintf(f, "}\n");\r
  fclose(f);\r
}\r
\r
void instruction_hook(void)\r
{\r
  if (!atexit_set) {\r
    atexit(make_idc);\r
    atexit_set = 1;\r
  }\r
  if (REG_PC < 0x400000)\r
    op_flags[REG_PC/2] = 1;\r
}\r
#endif\r
\r
// vim:shiftwidth=2:ts=2:expandtab\r
Commit	Line	Data
cff531af	1	/*\r
	2	* PicoDrive\r
	3	* (c) Copyright Dave, 2004\r
	4	* (C) notaz, 2006-2009\r
	5	*\r
	6	* This work is licensed under the terms of MAME license.\r
	7	* See COPYING file in the top-level directory.\r
	8	*/\r
cc68a136	9	\r
efcba75f	10	#include "pico_int.h"\r
488c0bbf	11	#include "memory.h"\r
cc68a136	12	\r
cc68a136	13	\r
ae214f1c	14	unsigned int SekCycleCnt;\r
ae214f1c	15	unsigned int SekCycleAim;\r
cc68a136	16	\r
70357ce5	17	\r
	18	/* context */\r
	19	// Cyclone 68000\r
cc68a136	20	#ifdef EMU_C68K\r
3aa1e148	21	struct Cyclone PicoCpuCM68k;\r
cc68a136	22	#endif\r
70357ce5	23	// MUSASHI 68000\r
cc68a136	24	#ifdef EMU_M68K\r
3aa1e148	25	m68ki_cpu_core PicoCpuMM68k;\r
cc68a136	26	#endif\r
70357ce5	27	// FAME 68000\r
70357ce5	28	#ifdef EMU_F68K\r
3aa1e148	29	M68K_CONTEXT PicoCpuFM68k;\r
cc68a136	30	#endif\r
	31	\r
	32	\r
70357ce5	33	/* callbacks */\r
cc68a136	34	#ifdef EMU_C68K\r
b837b69b	35	// interrupt acknowledgment\r
0af33fe0	36	static int SekIntAck(int level)\r
cc68a136	37	{\r
cc68a136	38	// try to emulate VDP's reaction to 68000 int ack\r
69996cb7	39	if (level == 4) { Pico.video.pending_ints = 0; elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
69996cb7	40	else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
3aa1e148	41	PicoCpuCM68k.irq = 0;\r
0af33fe0	42	return CYCLONE_INT_ACK_AUTOVECTOR;\r
cc68a136	43	}\r
cc68a136	44	\r
69996cb7	45	static void SekResetAck(void)\r
cc68a136	46	{\r
69996cb7	47	elprintf(EL_ANOMALY, "Reset encountered @ %06x", SekPc);\r
cc68a136	48	}\r
	49	\r
	50	static int SekUnrecognizedOpcode()\r
	51	{\r
b4db550e	52	unsigned int pc;\r
cc68a136	53	pc = SekPc;\r
b4db550e	54	elprintf(EL_ANOMALY, "Unrecognized Opcode @ %06x", pc);\r
	55	// see if we are still in a mapped region\r
	56	pc &= 0x00ffffff;\r
	57	if (map_flag_set(m68k_read16_map[pc >> M68K_MEM_SHIFT])) {\r
	58	elprintf(EL_STATUS\|EL_ANOMALY, "m68k crash @%06x", pc);\r
3aa1e148	59	PicoCpuCM68k.cycles = 0;\r
3aa1e148	60	PicoCpuCM68k.state_flags \|= 1;\r
cc68a136	61	return 1;\r
cc68a136	62	}\r
2d0b15bb	63	#ifdef EMU_M68K // debugging cyclone\r
	64	{\r
	65	extern int have_illegal;\r
	66	have_illegal = 1;\r
	67	}\r
	68	#endif\r
cc68a136	69	return 0;\r
	70	}\r
	71	#endif\r
	72	\r
	73	\r
	74	#ifdef EMU_M68K\r
	75	static int SekIntAckM68K(int level)\r
	76	{\r
69996cb7	77	if (level == 4) { Pico.video.pending_ints = 0; elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
69996cb7	78	else if(level == 6) { Pico.video.pending_ints &= ~0x20; elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCycleCnt); }\r
cc68a136	79	CPU_INT_LEVEL = 0;\r
	80	return M68K_INT_ACK_AUTOVECTOR;\r
	81	}\r
0af33fe0	82	\r
	83	static int SekTasCallback(void)\r
	84	{\r
	85	return 0; // no writeback\r
	86	}\r
cc68a136	87	#endif\r
	88	\r
	89	\r
70357ce5	90	#ifdef EMU_F68K\r
3aa1e148	91	static void SekIntAckF68K(unsigned level)\r
70357ce5	92	{\r
c7fd7bb8	93	if (level == 4) {\r
	94	Pico.video.pending_ints = 0;\r
	95	elprintf(EL_INTS, "hack: @ %06x [%i]", SekPc, SekCyclesDone());\r
	96	}\r
	97	else if(level == 6) {\r
	98	Pico.video.pending_ints &= ~0x20;\r
	99	elprintf(EL_INTS, "vack: @ %06x [%i]", SekPc, SekCyclesDone());\r
	100	}\r
3aa1e148	101	PicoCpuFM68k.interrupts[0] = 0;\r
70357ce5	102	}\r
	103	#endif\r
	104	\r
cc68a136	105	\r
2aa27095	106	PICO_INTERNAL void SekInit(void)\r
cc68a136	107	{\r
	108	#ifdef EMU_C68K\r
	109	CycloneInit();\r
3aa1e148	110	memset(&PicoCpuCM68k,0,sizeof(PicoCpuCM68k));\r
	111	PicoCpuCM68k.IrqCallback=SekIntAck;\r
	112	PicoCpuCM68k.ResetCallback=SekResetAck;\r
	113	PicoCpuCM68k.UnrecognizedCallback=SekUnrecognizedOpcode;\r
03e4f2a3	114	PicoCpuCM68k.flags=4; // Z set\r
cc68a136	115	#endif\r
cc68a136	116	#ifdef EMU_M68K\r
	117	{\r
	118	void *oldcontext = m68ki_cpu_p;\r
3aa1e148	119	m68k_set_context(&PicoCpuMM68k);\r
cc68a136	120	m68k_set_cpu_type(M68K_CPU_TYPE_68000);\r
	121	m68k_init();\r
	122	m68k_set_int_ack_callback(SekIntAckM68K);\r
0af33fe0	123	m68k_set_tas_instr_callback(SekTasCallback);\r
9037e45d	124	//m68k_pulse_reset();\r
cc68a136	125	m68k_set_context(oldcontext);\r
	126	}\r
	127	#endif\r
70357ce5	128	#ifdef EMU_F68K\r
	129	{\r
	130	void *oldcontext = g_m68kcontext;\r
3aa1e148	131	g_m68kcontext = &PicoCpuFM68k;\r
3aa1e148	132	memset(&PicoCpuFM68k, 0, sizeof(PicoCpuFM68k));\r
03e4f2a3	133	fm68k_init();\r
3aa1e148	134	PicoCpuFM68k.iack_handler = SekIntAckF68K;\r
b5e5172d	135	PicoCpuFM68k.sr = 0x2704; // Z flag\r
70357ce5	136	g_m68kcontext = oldcontext;\r
	137	}\r
	138	#endif\r
cc68a136	139	}\r
cc68a136	140	\r
70357ce5	141	\r
cc68a136	142	// Reset the 68000:\r
2aa27095	143	PICO_INTERNAL int SekReset(void)\r
cc68a136	144	{\r
	145	if (Pico.rom==NULL) return 1;\r
	146	\r
	147	#ifdef EMU_C68K\r
5e89f0f5	148	CycloneReset(&PicoCpuCM68k);\r
cc68a136	149	#endif\r
cc68a136	150	#ifdef EMU_M68K\r
3aa1e148	151	m68k_set_context(&PicoCpuMM68k); // if we ever reset m68k, we always need it's context to be set\r
2d0b15bb	152	m68ki_cpu.sp[0]=0;\r
2d0b15bb	153	m68k_set_irq(0);\r
b837b69b	154	m68k_pulse_reset();\r
99464b62	155	REG_USP = 0; // ?\r
cc68a136	156	#endif\r
70357ce5	157	#ifdef EMU_F68K\r
70357ce5	158	{\r
3aa1e148	159	g_m68kcontext = &PicoCpuFM68k;\r
03e4f2a3	160	fm68k_reset();\r
70357ce5	161	}\r
70357ce5	162	#endif\r
cc68a136	163	\r
	164	return 0;\r
	165	}\r
	166	\r
5f9a0d16	167	void SekStepM68k(void)\r
	168	{\r
	169	SekCycleAim=SekCycleCnt+1;\r
	170	#if defined(EMU_CORE_DEBUG)\r
	171	SekCycleCnt+=CM_compareRun(1, 0);\r
	172	#elif defined(EMU_C68K)\r
	173	PicoCpuCM68k.cycles=1;\r
	174	CycloneRun(&PicoCpuCM68k);\r
	175	SekCycleCnt+=1-PicoCpuCM68k.cycles;\r
	176	#elif defined(EMU_M68K)\r
	177	SekCycleCnt+=m68k_execute(1);\r
	178	#elif defined(EMU_F68K)\r
99ade2ee	179	SekCycleCnt+=fm68k_emulate(1, 0);\r
5f9a0d16	180	#endif\r
5f9a0d16	181	}\r
cc68a136	182	\r
eff55556	183	PICO_INTERNAL void SekSetRealTAS(int use_real)\r
2433f409	184	{\r
	185	#ifdef EMU_C68K\r
	186	CycloneSetRealTAS(use_real);\r
	187	#endif\r
70357ce5	188	#ifdef EMU_F68K\r
	189	// TODO\r
	190	#endif\r
2433f409	191	}\r
2433f409	192	\r
b4db550e	193	// Pack the cpu into a common format:\r
	194	// XXX: rename\r
	195	PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub)\r
	196	{\r
	197	unsigned int pc=0;\r
	198	\r
	199	#if defined(EMU_C68K)\r
	200	struct Cyclone *context = is_sub ? &PicoCpuCS68k : &PicoCpuCM68k;\r
	201	memcpy(cpu,context->d,0x40);\r
	202	pc=context->pc-context->membase;\r
	203	(unsigned int )(cpu+0x44)=CycloneGetSr(context);\r
	204	(unsigned int )(cpu+0x48)=context->osp;\r
	205	cpu[0x4c] = context->irq;\r
	206	cpu[0x4d] = context->state_flags & 1;\r
	207	#elif defined(EMU_M68K)\r
	208	void *oldcontext = m68ki_cpu_p;\r
	209	m68k_set_context(is_sub ? &PicoCpuMS68k : &PicoCpuMM68k);\r
	210	memcpy(cpu,m68ki_cpu_p->dar,0x40);\r
	211	pc=m68ki_cpu_p->pc;\r
	212	(unsigned int )(cpu+0x44)=m68k_get_reg(NULL, M68K_REG_SR);\r
	213	(unsigned int )(cpu+0x48)=m68ki_cpu_p->sp[m68ki_cpu_p->s_flag^SFLAG_SET];\r
	214	cpu[0x4c] = CPU_INT_LEVEL>>8;\r
	215	cpu[0x4d] = CPU_STOPPED;\r
	216	m68k_set_context(oldcontext);\r
	217	#elif defined(EMU_F68K)\r
	218	M68K_CONTEXT *context = is_sub ? &PicoCpuFS68k : &PicoCpuFM68k;\r
	219	memcpy(cpu,context->dreg,0x40);\r
	220	pc=context->pc;\r
	221	(unsigned int )(cpu+0x44)=context->sr;\r
	222	(unsigned int )(cpu+0x48)=context->asp;\r
	223	cpu[0x4c] = context->interrupts[0];\r
	224	cpu[0x4d] = (context->execinfo & FM68K_HALTED) ? 1 : 0;\r
	225	#endif\r
	226	\r
6a98f03e	227	(unsigned int )(cpu+0x40) = pc;\r
ae214f1c	228	(unsigned int )(cpu+0x50) =\r
ae214f1c	229	is_sub ? SekCycleCntS68k : SekCycleCnt;\r
b4db550e	230	}\r
	231	\r
	232	PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub)\r
	233	{\r
	234	#if defined(EMU_C68K)\r
	235	struct Cyclone *context = is_sub ? &PicoCpuCS68k : &PicoCpuCM68k;\r
	236	CycloneSetSr(context, (unsigned int )(cpu+0x44));\r
	237	context->osp=(unsigned int )(cpu+0x48);\r
	238	memcpy(context->d,cpu,0x40);\r
	239	context->membase = 0;\r
	240	context->pc = (unsigned int )(cpu+0x40);\r
	241	CycloneUnpack(context, NULL); // rebase PC\r
	242	context->irq = cpu[0x4c];\r
	243	context->state_flags = 0;\r
	244	if (cpu[0x4d])\r
	245	context->state_flags \|= 1;\r
	246	#elif defined(EMU_M68K)\r
	247	void *oldcontext = m68ki_cpu_p;\r
	248	m68k_set_context(is_sub ? &PicoCpuMS68k : &PicoCpuMM68k);\r
	249	m68k_set_reg(M68K_REG_SR, (unsigned int )(cpu+0x44));\r
	250	memcpy(m68ki_cpu_p->dar,cpu,0x40);\r
	251	m68ki_cpu_p->pc=(unsigned int )(cpu+0x40);\r
	252	m68ki_cpu_p->sp[m68ki_cpu_p->s_flag^SFLAG_SET]=(unsigned int )(cpu+0x48);\r
	253	CPU_INT_LEVEL = cpu[0x4c] << 8;\r
	254	CPU_STOPPED = cpu[0x4d];\r
	255	m68k_set_context(oldcontext);\r
	256	#elif defined(EMU_F68K)\r
	257	M68K_CONTEXT *context = is_sub ? &PicoCpuFS68k : &PicoCpuFM68k;\r
	258	memcpy(context->dreg,cpu,0x40);\r
	259	context->pc =(unsigned int )(cpu+0x40);\r
	260	context->sr =(unsigned int )(cpu+0x44);\r
	261	context->asp=(unsigned int )(cpu+0x48);\r
	262	context->interrupts[0] = cpu[0x4c];\r
	263	context->execinfo &= ~FM68K_HALTED;\r
	264	if (cpu[0x4d]&1) context->execinfo \|= FM68K_HALTED;\r
	265	#endif\r
ae214f1c	266	if (is_sub)\r
	267	SekCycleCntS68k = (unsigned int )(cpu+0x50);\r
	268	else\r
	269	SekCycleCnt = (unsigned int )(cpu+0x50);\r
b4db550e	270	}\r
b4db550e	271	\r
5f9a0d16	272	\r
053fd9b4	273	/* idle loop detection, not to be used in CD mode */\r
053fd9b4	274	#ifdef EMU_C68K\r
d4d62665	275	#include "cpu/cyclone/tools/idle.h"\r
053fd9b4	276	#endif\r
053fd9b4	277	\r
488c0bbf	278	static unsigned short **idledet_ptrs = NULL;\r
053fd9b4	279	static int idledet_count = 0, idledet_bads = 0;\r
0219d379	280	static int idledet_start_frame = 0;\r
053fd9b4	281	\r
5ed2a20e	282	#if 0\r
	283	#define IDLE_STATS 1\r
	284	unsigned int idlehit_addrs[128], idlehit_counts[128];\r
	285	\r
	286	void SekRegisterIdleHit(unsigned int pc)\r
	287	{\r
	288	int i;\r
	289	for (i = 0; i < 127 && idlehit_addrs[i]; i++) {\r
	290	if (idlehit_addrs[i] == pc) {\r
	291	idlehit_counts[i]++;\r
	292	return;\r
	293	}\r
	294	}\r
	295	idlehit_addrs[i] = pc;\r
	296	idlehit_counts[i] = 1;\r
	297	idlehit_addrs[i+1] = 0;\r
	298	}\r
	299	#endif\r
	300	\r
053fd9b4	301	void SekInitIdleDet(void)\r
053fd9b4	302	{\r
488c0bbf	303	unsigned short *tmp = realloc(idledet_ptrs, 0x2004);\r
053fd9b4	304	if (tmp == NULL) {\r
488c0bbf	305	free(idledet_ptrs);\r
488c0bbf	306	idledet_ptrs = NULL;\r
053fd9b4	307	}\r
053fd9b4	308	else\r
488c0bbf	309	idledet_ptrs = tmp;\r
053fd9b4	310	idledet_count = idledet_bads = 0;\r
053fd9b4	311	idledet_start_frame = Pico.m.frame_count + 360;\r
5ed2a20e	312	#ifdef IDLE_STATS\r
	313	idlehit_addrs[0] = 0;\r
	314	#endif\r
053fd9b4	315	\r
053fd9b4	316	#ifdef EMU_C68K\r
	317	CycloneInitIdle();\r
	318	#endif\r
c060a9ab	319	#ifdef EMU_F68K\r
99ade2ee	320	fm68k_emulate(0, 1);\r
c060a9ab	321	#endif\r
053fd9b4	322	}\r
053fd9b4	323	\r
0219d379	324	int SekIsIdleReady(void)\r
	325	{\r
	326	return (Pico.m.frame_count >= idledet_start_frame);\r
	327	}\r
	328	\r
053fd9b4	329	int SekIsIdleCode(unsigned short *dst, int bytes)\r
053fd9b4	330	{\r
8187ba84	331	// printf("SekIsIdleCode %04x %i\n", *dst, bytes);\r
053fd9b4	332	switch (bytes)\r
053fd9b4	333	{\r
5ed2a20e	334	case 2:\r
	335	if ((*dst & 0xf000) != 0x6000) // not another branch\r
	336	return 1;\r
	337	break;\r
053fd9b4	338	case 4:\r
0219d379	339	if ( (*dst & 0xff3f) == 0x4a38 \|\| // tst.x ($xxxx.w); tas ($xxxx.w)\r
	340	(*dst & 0xc1ff) == 0x0038 \|\| // move.x ($xxxx.w), dX\r
	341	(*dst & 0xf13f) == 0xb038) // cmp.x ($xxxx.w), dX\r
	342	return 1;\r
	343	if (PicoAHW & (PAHW_MCD\|PAHW_32X))\r
	344	break;\r
	345	// with no addons, there should be no need to wait\r
	346	// for byte change anywhere\r
	347	if ( (*dst & 0xfff8) == 0x4a10 \|\| // tst.b ($aX)\r
	348	(*dst & 0xfff8) == 0x4a28) // tst.b ($xxxx,a0)\r
053fd9b4	349	return 1;\r
	350	break;\r
	351	case 6:\r
b0677887	352	if ( ((dst[1] & 0xe0) == 0xe0 && ( // RAM and\r
	353	*dst == 0x4a39 \|\| // tst.b ($xxxxxxxx)\r
	354	*dst == 0x4a79 \|\| // tst.w ($xxxxxxxx)\r
	355	*dst == 0x4ab9 \|\| // tst.l ($xxxxxxxx)\r
	356	(*dst & 0xc1ff) == 0x0039 \|\| // move.x ($xxxxxxxx), dX\r
	357	(*dst & 0xf13f) == 0xb039))\|\|// cmp.x ($xxxxxxxx), dX\r
	358	*dst == 0x0838 \|\| // btst $X, ($xxxx.w) [6 byte op]\r
	359	(*dst & 0xffbf) == 0x0c38) // cmpi.{b,w} $X, ($xxxx.w)\r
053fd9b4	360	return 1;\r
	361	break;\r
	362	case 8:\r
b0677887	363	if ( ((dst[2] & 0xe0) == 0xe0 && ( // RAM and\r
	364	*dst == 0x0839 \|\| // btst $X, ($xxxxxxxx.w) [8 byte op]\r
	365	(*dst & 0xffbf) == 0x0c39))\|\|// cmpi.{b,w} $X, ($xxxxxxxx)\r
	366	*dst == 0x0cb8) // cmpi.l $X, ($xxxx.w)\r
053fd9b4	367	return 1;\r
	368	break;\r
	369	case 12:\r
0219d379	370	if (PicoAHW & (PAHW_MCD\|PAHW_32X))\r
	371	break;\r
	372	if ( (*dst & 0xf1f8) == 0x3010 && // move.w (aX), dX\r
b0677887	373	(dst[1]&0xf100) == 0x0000 && // arithmetic\r
b0677887	374	(dst[3]&0xf100) == 0x0000) // arithmetic\r
053fd9b4	375	return 1;\r
	376	break;\r
	377	}\r
	378	\r
	379	return 0;\r
	380	}\r
	381	\r
5ed2a20e	382	int SekRegisterIdlePatch(unsigned int pc, int oldop, int newop, void *ctx)\r
053fd9b4	383	{\r
5ed2a20e	384	int is_main68k = 1;\r
488c0bbf	385	u16 *target;\r
	386	uptr v;\r
	387	\r
5ed2a20e	388	#if defined(EMU_C68K)\r
	389	struct Cyclone *cyc = ctx;\r
	390	is_main68k = cyc == &PicoCpuCM68k;\r
	391	pc -= cyc->membase;\r
	392	#elif defined(EMU_F68K)\r
	393	is_main68k = ctx == &PicoCpuFM68k;\r
053fd9b4	394	#endif\r
053fd9b4	395	pc &= ~0xff000000;\r
0219d379	396	if (!(newop&0x200))\r
5ed2a20e	397	elprintf(EL_IDLE, "idle: patch %06x %04x %04x %c %c #%i", pc, oldop, newop,\r
	398	(newop&0x200)?'n':'y', is_main68k?'m':'s', idledet_count);\r
	399	\r
488c0bbf	400	// XXX: probably shouldn't patch RAM too\r
	401	v = m68k_read16_map[pc >> M68K_MEM_SHIFT];\r
	402	if (!(v & 0x80000000))\r
	403	target = (u16 *)((v << 1) + pc);\r
	404	else {\r
	405	if (++idledet_bads > 128)\r
	406	return 2; // remove detector\r
053fd9b4	407	return 1; // don't patch\r
	408	}\r
	409	\r
	410	if (idledet_count >= 0x200 && (idledet_count & 0x1ff) == 0) {\r
488c0bbf	411	unsigned short *tmp = realloc(idledet_ptrs, (idledet_count+0x200)4);\r
	412	if (tmp == NULL)\r
	413	return 1;\r
	414	idledet_ptrs = tmp;\r
053fd9b4	415	}\r
053fd9b4	416	\r
488c0bbf	417	idledet_ptrs[idledet_count++] = target;\r
b0677887	418	\r
053fd9b4	419	return 0;\r
	420	}\r
	421	\r
	422	void SekFinishIdleDet(void)\r
	423	{\r
053fd9b4	424	#ifdef EMU_C68K\r
053fd9b4	425	CycloneFinishIdle();\r
c060a9ab	426	#endif\r
c060a9ab	427	#ifdef EMU_F68K\r
99ade2ee	428	fm68k_emulate(0, 2);\r
053fd9b4	429	#endif\r
	430	while (idledet_count > 0)\r
	431	{\r
488c0bbf	432	unsigned short *op = idledet_ptrs[--idledet_count];\r
053fd9b4	433	if ((*op & 0xfd00) == 0x7100)\r
	434	op &= 0xff, op \|= 0x6600;\r
	435	else if ((*op & 0xfd00) == 0x7500)\r
	436	op &= 0xff, op \|= 0x6700;\r
	437	else if ((*op & 0xfd00) == 0x7d00)\r
	438	op &= 0xff, op \|= 0x6000;\r
	439	else\r
	440	elprintf(EL_STATUS\|EL_IDLE, "idle: don't know how to restore %04x", *op);\r
	441	}\r
053fd9b4	442	}\r
	443	\r
	444	\r
12da51c2	445	#if defined(CPU_CMP_R) \|\| defined(CPU_CMP_W)\r
	446	#include "debug.h"\r
	447	\r
	448	struct ref_68k {\r
	449	u32 dar[16];\r
	450	u32 pc;\r
	451	u32 sr;\r
	452	u32 cycles;\r
	453	u32 pc_prev;\r
	454	};\r
	455	struct ref_68k ref_68ks[2];\r
	456	static int current_68k;\r
	457	\r
	458	void SekTrace(int is_s68k)\r
	459	{\r
	460	struct ref_68k *x68k = &ref_68ks[is_s68k];\r
	461	u32 pc = is_s68k ? SekPcS68k : SekPc;\r
	462	u32 sr = is_s68k ? SekSrS68k : SekSr;\r
	463	u32 cycles = is_s68k ? SekCycleCntS68k : SekCycleCnt;\r
	464	u32 r;\r
	465	u8 cmd;\r
	466	#ifdef CPU_CMP_W\r
	467	int i;\r
	468	\r
	469	if (is_s68k != current_68k) {\r
	470	current_68k = is_s68k;\r
	471	cmd = CTL_68K_SLAVE \| current_68k;\r
	472	tl_write(&cmd, sizeof(cmd));\r
	473	}\r
	474	if (pc != x68k->pc) {\r
	475	x68k->pc = pc;\r
	476	tl_write_uint(CTL_68K_PC, x68k->pc);\r
	477	}\r
	478	if (sr != x68k->sr) {\r
	479	x68k->sr = sr;\r
	480	tl_write_uint(CTL_68K_SR, x68k->sr);\r
	481	}\r
	482	for (i = 0; i < 16; i++) {\r
	483	r = is_s68k ? SekDarS68k(i) : SekDar(i);\r
	484	if (r != x68k->dar[i]) {\r
	485	x68k->dar[i] = r;\r
	486	tl_write_uint(CTL_68K_R + i, r);\r
	487	}\r
	488	}\r
	489	tl_write_uint(CTL_68K_CYCLES, cycles);\r
	490	#else\r
	491	int i, bad = 0;\r
	492	\r
	493	while (1)\r
	494	{\r
	495	int ret = tl_read(&cmd, sizeof(cmd));\r
	496	if (ret == 0) {\r
	497	elprintf(EL_STATUS, "EOF");\r
	498	exit(1);\r
	499	}\r
	500	switch (cmd) {\r
	501	case CTL_68K_SLAVE:\r
	502	case CTL_68K_SLAVE + 1:\r
	503	current_68k = cmd & 1;\r
	504	break;\r
	505	case CTL_68K_PC:\r
	506	tl_read_uint(&x68k->pc);\r
	507	break;\r
	508	case CTL_68K_SR:\r
509	tl_read_uint(&x68k->sr);\r
510	break;\r
511	case CTL_68K_CYCLES:\r
512	tl_read_uint(&x68k->cycles);\r
513	goto breakloop;\r
514	default:\r
515	if (CTL_68K_R <= cmd && cmd < CTL_68K_R + 0x10)\r
516	tl_read_uint(&x68k->dar[cmd - CTL_68K_R]);\r
517	else\r
518	elprintf(EL_STATUS, "invalid cmd: %02x", cmd);\r
519	}\r
520	}\r
521	\r
522	breakloop:\r
523	if (is_s68k != current_68k) {\r
524	printf("bad 68k: %d %d\n", is_s68k, current_68k);\r
525	bad = 1;\r
526	}\r
527	if (cycles != x68k->cycles) {\r
528	printf("bad cycles: %u %u\n", cycles, x68k->cycles);\r
529	bad = 1;\r
530	}\r
531	if ((pc ^ x68k->pc) & 0xffffff) {\r
532	printf("bad PC: %08x %08x\n", pc, x68k->pc);\r
533	bad = 1;\r
534	}\r
535	if (sr != x68k->sr) {\r
536	printf("bad SR: %03x %03x\n", sr, x68k->sr);\r
537	bad = 1;\r
538	}\r
539	for (i = 0; i < 16; i++) {\r
540	r = is_s68k ? SekDarS68k(i) : SekDar(i);\r
541	if (r != x68k->dar[i]) {\r
542	printf("bad %c%d: %08x %08x\n", i < 8 ? 'D' : 'A', i & 7,\r
543	r, x68k->dar[i]);\r
544	bad = 1;\r
545	}\r
546	}\r
547	if (bad) {\r
548	for (i = 0; i < 8; i++)\r
549	printf("D%d: %08x A%d: %08x\n", i, x68k->dar[i],\r
550	i, x68k->dar[i + 8]);\r
551	printf("PC: %08x, %08x\n", x68k->pc, x68k->pc_prev);\r
a39743e3	552	printf("SR: %04x\n", x68k->sr);\r
12da51c2	553	\r
	554	PDebugDumpMem();\r
	555	exit(1);\r
	556	}\r
	557	x68k->pc_prev = x68k->pc;\r
	558	#endif\r
	559	}\r
	560	#endif // CPU_CMP_*\r
	561	\r
6cab49fd	562	#if defined(EMU_M68K) && M68K_INSTRUCTION_HOOK == OPT_SPECIFY_HANDLER\r
	563	static unsigned char op_flags[0x400000/2] = { 0, };\r
	564	static int atexit_set = 0;\r
	565	\r
	566	static void make_idc(void)\r
	567	{\r
	568	FILE *f = fopen("idc.idc", "w");\r
	569	int i;\r
	570	if (!f) return;\r
	571	fprintf(f, "#include <idc.idc>\nstatic main() {\n");\r
	572	for (i = 0; i < 0x400000/2; i++)\r
	573	if (op_flags[i] != 0)\r
	574	fprintf(f, " MakeCode(0x%06x);\n", i*2);\r
	575	fprintf(f, "}\n");\r
	576	fclose(f);\r
	577	}\r
	578	\r
	579	void instruction_hook(void)\r
	580	{\r
	581	if (!atexit_set) {\r
	582	atexit(make_idc);\r
	583	atexit_set = 1;\r
	584	}\r
	585	if (REG_PC < 0x400000)\r
	586	op_flags[REG_PC/2] = 1;\r
	587	}\r
	588	#endif\r
12da51c2	589	\r
12da51c2	590	// vim:shiftwidth=2:ts=2:expandtab\r