source/src/vm/fm7/fm7.cpp

   1
   2 /*
   3  * FM7 -> VM
   4  * (C) 2015 K.Ohta <whatisthis.sowhat _at_ gmail.com>
   5  * History:
   6  *   Feb 27, 2015 : Initial
   7  */
   8
   9 #include "fm7.h"
  10 #include "../../emu.h"
  11 #include "../../config.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14 #include "../memory.h"
  15 #include "../prnfile.h"
  16
  17 #ifdef USE_DEBUGGER
  18 #include "../debugger.h"
  19 #endif
  20 #if defined(SUPPORT_DUMMY_DEVICE_LED)
  21 #include "../dummydevice.h"
  22 #else
  23 #define SIG_DUMMYDEVICE_BIT0 0
  24 #define SIG_DUMMYDEVICE_BIT1 1
  25 #define SIG_DUMMYDEVICE_BIT2 2
  26 #endif
  27
  28 #include "../datarec.h"
  29 #include "../disk.h"
  30
  31 #include "../mc6809.h"
  32 #include "../z80.h"
  33 #include "../mb8877.h"
  34
  35 #include "../pcm1bit.h"
  36 #include "../ym2203.h"
  37 #if defined(_FM77AV_VARIANTS)
  38 #include "mb61vh010.h"
  39 #include "../beep.h"
  40 #endif
  41 #if defined(HAS_DMA)
  42 #include "hd6844.h"
  43 #endif
  44
  45 #include "./fm7_mainio.h"
  46 #include "./fm7_mainmem.h"
  47 #include "./fm7_display.h"
  48 #include "./fm7_keyboard.h"
  49 #include "./joystick.h"
  50
  51 #include "./kanjirom.h"
  52
  53 VM::VM(EMU* parent_emu): emu(parent_emu)
  54 {
  55
  56         first_device = last_device = NULL;
  57 #if defined(_FM77AV_VARIANTS)
  58         opn[0] = opn[1] = opn[2] = NULL;
  59 #else
  60         opn[0] = opn[1] = opn[2] = psg = NULL;
  61 #endif
  62         dummy = new DEVICE(this, emu);  // must be 1st device
  63         event = new EVENT(this, emu);   // must be 2nd device
  64
  65         dummycpu = new DEVICE(this, emu);
  66         maincpu = new MC6809(this, emu);
  67         subcpu = new MC6809(this, emu);
  68 #ifdef WITH_Z80
  69         z80cpu = new Z80(this, emu);
  70 #endif
  71         // basic devices
  72         kanjiclass1 = new KANJIROM(this, emu, false);
  73 #ifdef CAPABLE_KANJI_CLASS2
  74         kanjiclass2 = new KANJIROM(this, emu, true);
  75 #endif
  76         joystick  = new JOYSTICK(this, emu);
  77
  78         // I/Os
  79         drec = new DATAREC(this, emu);
  80         pcm1bit = new PCM1BIT(this, emu);
  81         fdc  = new MB8877(this, emu);
  82 #if defined(HAS_DMA)
  83         dmac = new HD6844(this, emu);
  84 #endif
  85 #if defined(_FM8)
  86         opn[0] = new YM2203(this, emu);
  87 #else
  88         opn[0] = new YM2203(this, emu); // OPN
  89         opn[1] = new YM2203(this, emu); // WHG
  90         opn[2] = new YM2203(this, emu); // THG
  91 # if !defined(_FM77AV_VARIANTS)
  92         psg = new YM2203(this, emu);
  93 # endif
  94 #endif
  95 #if defined(_FM77AV_VARIANTS)
  96         alu = new MB61VH010(this, emu);
  97         keyboard_beep = new BEEP(this, emu);
  98 #endif
  99         keyboard = new KEYBOARD(this, emu);
 100         display = new DISPLAY(this, emu);
 101         printer = new PRNFILE(this, emu);
 102         mainio  = new FM7_MAINIO(this, emu);
 103         mainmem = new FM7_MAINMEM(this, emu);
 104
 105 #if defined(SUPPORT_DUMMY_DEVICE_LED)
 106         led_terminate = new DUMMYDEVICE(this, emu);
 107 #else
 108         led_terminate = new DEVICE(this, emu);
 109 #endif
 110         //maincpu = new MC6809(this, emu);
 111         //subcpu = new MC6809(this, emu);
 112 #ifdef WITH_Z80
 113         //z80cpu = new Z80(this, emu);
 114 #endif
 115         // MEMORIES must set before initialize().
 116         maincpu->set_context_mem(mainmem);
 117         subcpu->set_context_mem(display);
 118 #ifdef WITH_Z80
 119         z80cpu->set_context_mem(mainmem);
 120 #endif
 121 #ifdef USE_DEBUGGER
 122         maincpu->set_context_debugger(new DEBUGGER(this, emu));
 123         subcpu->set_context_debugger(new DEBUGGER(this, emu));
 124 # ifdef WITH_Z80
 125         z80cpu->set_context_debugger(new DEBUGGER(this, emu));
 126 # endif
 127 #endif
 128         connect_bus();
 129         initialize();
 130 }
 131
 132 VM::~VM()
 133 {
 134         // delete all devices
 135         for(DEVICE* device = first_device; device;) {
 136                 DEVICE *next_device = device->next_device;
 137                 device->release();
 138                 delete device;
 139                 device = next_device;
 140         }
 141 }
 142
 143 DEVICE* VM::get_device(int id)
 144 {
 145         for(DEVICE* device = first_device; device; device = device->next_device) {
 146                 if(device->this_device_id == id) {
 147                         return device;
 148                 }
 149         }
 150         return NULL;
 151 }
 152
 153
 154 void VM::initialize(void)
 155 {
 156         clock_low = false;
 157
 158 }
 159
 160
 161 void VM::connect_bus(void)
 162 {
 163         uint32 mainclock;
 164         uint32 subclock;
 165
 166         /*
 167          * CLASS CONSTRUCTION
 168          *
 169          * VM
 170          *  |-> MAINCPU -> MAINMEM -> MAINIO -> MAIN DEVICES
 171          *  |             |        |
 172          *  | -> SUBCPU  -> SUBMEM  -> SUBIO -> SUB DEVICES
 173          *  | -> DISPLAY
 174          *  | -> KEYBOARD
 175          *
 176          *  MAINMEM can access SUBMEM/IO, when SUBCPU is halted.
 177          *  MAINMEM and SUBMEM can access DISPLAY and KEYBOARD with exclusive.
 178          *  MAINCPU can access MAINMEM.
 179          *  SUBCPU  can access SUBMEM.
 180          *  DISPLAY : R/W from MAINCPU and SUBCPU.
 181          *  KEYBOARD : R/W
 182          *
 183          */
 184         event->set_frames_per_sec(FRAMES_PER_SEC);
 185         event->set_lines_per_frame(LINES_PER_FRAME);
 186         event->set_context_cpu(dummycpu, (CPU_CLOCKS * 3) / 8); // MAYBE FIX With eFM77AV40/20.
 187         //event->set_context_cpu(dummycpu, (int)(4.9152 * 1000.0 * 1000.0 / 4.0));
 188
 189 #if defined(_FM8)
 190         mainclock = MAINCLOCK_SLOW;
 191         subclock = SUBCLOCK_SLOW;
 192 #else
 193         if(config.cpu_type == 0) {
 194                 // 2MHz
 195                 subclock = SUBCLOCK_NORMAL;
 196                 mainclock = MAINCLOCK_NORMAL;
 197         } else {
 198                 // 1.2MHz
 199                 mainclock = MAINCLOCK_SLOW;
 200                 subclock = SUBCLOCK_SLOW;
 201         }
 202         //if((config.dipswitch & FM7_DIPSW_CYCLESTEAL) != 0) subclock = subclock / 3;
 203 #endif
 204         event->set_context_cpu(maincpu, mainclock);
 205         event->set_context_cpu(subcpu,  subclock);
 206
 207 #ifdef WITH_Z80
 208         event->set_context_cpu(z80cpu,  4000000);
 209         z80cpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 210 #endif
 211
 212         event->set_context_sound(pcm1bit);
 213 #if defined(_FM8)
 214         event->set_context_sound(opn[0]);
 215         event->set_context_sound(drec);
 216 #else
 217 # if !defined(_FM77AV_VARIANTS)
 218         mainio->set_context_psg(psg);
 219         event->set_context_sound(psg);
 220 # endif
 221         event->set_context_sound(opn[0]);
 222         event->set_context_sound(opn[1]);
 223         event->set_context_sound(opn[2]);
 224         event->set_context_sound(drec);
 225 # if defined(_FM77AV_VARIANTS)
 226         event->set_context_sound(keyboard_beep);
 227 # endif
 228 #endif
 229         event->register_frame_event(display);
 230         //event->register_vline_event(display);
 231         //event->register_vline_event(mainio);
 232
 233         mainio->set_context_maincpu(maincpu);
 234         mainio->set_context_subcpu(subcpu);
 235
 236         mainio->set_context_display(display);
 237         mainio->set_context_kanjirom_class1(kanjiclass1);
 238         mainio->set_context_mainmem(mainmem);
 239         mainio->set_context_keyboard(keyboard);
 240         mainio->set_context_printer(printer);
 241
 242 #if defined(CAPABLE_KANJI_CLASS2)
 243         mainio->set_context_kanjirom_class2(kanjiclass2);
 244 #endif
 245
 246         keyboard->set_context_break_line(mainio, FM7_MAINIO_PUSH_BREAK, 0xffffffff);
 247         keyboard->set_context_int_line(mainio, FM7_MAINIO_KEYBOARDIRQ, 0xffffffff);
 248         keyboard->set_context_int_line(display, SIG_FM7_SUB_KEY_FIRQ, 0xffffffff);
 249 #if defined(_FM77AV_VARIANTS)
 250         keyboard->set_context_beep(keyboard_beep);
 251 #endif
 252         keyboard->set_context_rxrdy(display, SIG_FM7KEY_RXRDY, 0x01);
 253         keyboard->set_context_key_ack(display, SIG_FM7KEY_ACK, 0x01);
 254         keyboard->set_context_ins_led( led_terminate, SIG_DUMMYDEVICE_BIT0, 0xffffffff);
 255         keyboard->set_context_caps_led(led_terminate, SIG_DUMMYDEVICE_BIT1, 0xffffffff);
 256         keyboard->set_context_kana_led(led_terminate, SIG_DUMMYDEVICE_BIT2, 0xffffffff);
 257
 258         drec->set_context_ear(mainio, FM7_MAINIO_CMT_RECV, 0xffffffff);
 259         //drec->set_context_remote(mainio, FM7_MAINIO_CMT_REMOTE, 0xffffffff);
 260         mainio->set_context_datarec(drec);
 261         mainmem->set_context_mainio(mainio);
 262         mainmem->set_context_display(display);
 263         mainmem->set_context_maincpu(maincpu);
 264 #if defined(CAPABLE_DICTROM)
 265         mainmem->set_context_kanjirom_class1(kanjiclass1);
 266 #endif
 267         display->set_context_mainio(mainio);
 268         display->set_context_subcpu(subcpu);
 269         display->set_context_keyboard(keyboard);
 270         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 271         subcpu->set_context_bus_halt(mainmem, SIG_FM7_SUB_HALT, 0xffffffff);
 272
 273         display->set_context_kanjiclass1(kanjiclass1);
 274 #if defined(CAPABLE_KANJI_CLASS2)
 275         display->set_context_kanjiclass2(kanjiclass2);
 276 #endif
 277 #if defined(_FM77AV_VARIANTS)
 278         display->set_context_alu(alu);
 279         alu->set_context_memory(display);
 280 #endif
 281         // Palette, VSYNC, HSYNC, Multi-page, display mode.
 282         mainio->set_context_display(display);
 283
 284         //FDC
 285         mainio->set_context_fdc(fdc);
 286         fdc->set_context_irq(mainio, FM7_MAINIO_FDC_IRQ, 0x1);
 287         fdc->set_context_drq(mainio, FM7_MAINIO_FDC_DRQ, 0x1);
 288         // SOUND
 289         mainio->set_context_beep(pcm1bit);
 290 #if defined(_FM8)
 291         mainio->set_context_opn(opn[0], 0);
 292 #else
 293         opn[0]->set_context_irq(mainio, FM7_MAINIO_OPN_IRQ, 0xffffffff);
 294         mainio->set_context_opn(opn[0], 0);
 295         //joystick->set_context_opn(opn[0]);
 296         mainio->set_context_joystick(joystick);
 297         opn[0]->set_context_port_b(joystick, FM7_JOYSTICK_MOUSE_STROBE, 0xff, 0);
 298
 299         opn[1]->set_context_irq(mainio, FM7_MAINIO_WHG_IRQ, 0xffffffff);
 300         mainio->set_context_opn(opn[1], 1);
 301         opn[2]->set_context_irq(mainio, FM7_MAINIO_THG_IRQ, 0xffffffff);
 302         mainio->set_context_opn(opn[2], 2);
 303 #endif
 304         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 305         subcpu->set_context_bus_clr(display, SIG_FM7_SUB_USE_CLR, 0x0000000f);
 306
 307         event->register_frame_event(joystick);
 308 #if defined(HAS_DMA)
 309         dmac->set_context_src(fdc, 0);
 310         dmac->set_context_dst(mainmem, 0);
 311         dmac->set_context_int_line(mainio, 0, FM7_MAINIO_DMA_INT, 0xffffffff);
 312         dmac->set_context_drq_line(maincpu, 1, SIG_CPU_BUSREQ, 0xffffffff);
 313         mainio->set_context_dmac(dmac);
 314 #endif
 315         for(DEVICE* device = first_device; device; device = device->next_device) {
 316                 device->initialize();
 317         }
 318         for(int i = 0; i < 2; i++) {
 319 #if defined(_FM77AV20) || defined(_FM77AV40SX) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 320                 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 321 #else
 322                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 323 #endif
 324 #if defined(_FM77AV_VARIANTS)
 325                 fdc->set_drive_rpm(i, 360);
 326 #else
 327                 fdc->set_drive_rpm(i, 360);
 328 #endif
 329                 fdc->set_drive_mfm(i, true);
 330         }
 331 #if defined(_FM77) || defined(_FM77L4)
 332         for(int i = 2; i < 4; i++) {
 333                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 334                 fdc->set_drive_rpm(i, 360);
 335                 fdc->set_drive_mfm(i, true);
 336         }
 337 #endif
 338
 339 }
 340
 341 void VM::update_config()
 342 {
 343         uint32 vol1, vol2, tmpv;
 344         int ii, i_limit;
 345
 346 #if defined(SIG_YM2203_LVOLUME) && defined(SIG_YM2203_RVOLUME)
 347 # if defined(USE_MULTIPLE_SOUNDCARDS)
 348         i_limit = USE_MULTIPLE_SOUNDCARDS - 1;
 349 # else
 350 #  if !defined(_FM77AV_VARIANTS) && !defined(_FM8)
 351         i_limit = 4;
 352 #  elif defined(_FM8)
 353         i_limit = 2; // PSG Only
 354 #  else
 355         i_limit = 3;
 356 #  endif
 357 # endif
 358
 359         for(ii = 0; ii < i_limit; ii++) {
 360                 if(config.multiple_speakers) { //
 361 # if defined(USE_MULTIPLE_SOUNDCARDS)
 362                         vol1 = (config.sound_device_level[ii] + 32768) >> 8;
 363 # else
 364                         vol1 = 256;
 365 # endif //
 366
 367                         vol2 = vol1 >> 2;
 368                 } else {
 369 # if defined(USE_MULTIPLE_SOUNDCARDS)
 370                         vol1 = vol2 = (config.sound_device_level[ii] + 32768) >> 8;
 371 # else
 372                         vol1 = vol2 = 256;
 373 # endif
 374                 }
 375                 switch(ii) {
 376                 case 0: // OPN
 377                         break;
 378                 case 1: // WHG
 379                 case 3: // PSG
 380                         tmpv = vol1;
 381                         vol1 = vol2;
 382                         vol2 = tmpv;
 383                         break;
 384                 case 2: // THG
 385                         vol2 = vol1;
 386                         break;
 387                 default:
 388                         break;
 389                 }
 390                 if(ii < i_limit) {
 391                         opn[ii]->write_signal(SIG_YM2203_LVOLUME, vol1, 0xffffffff); // OPN: LEFT
 392                         opn[ii]->write_signal(SIG_YM2203_RVOLUME, vol2, 0xffffffff); // OPN: RIGHT
 393                 }
 394         }
 395 #endif
 396 #if defined(USE_MULTIPLE_SOUNDCARDS) && defined(DATAREC_SOUND)
 397         drec->write_signal(SIG_DATAREC_VOLUME, (config.sound_device_level[USE_MULTIPLE_SOUNDCARDS - 1] + 32768) >> 3, 0xffffffff);
 398 #endif
 399         for(DEVICE* device = first_device; device; device = device->next_device) {
 400                 device->update_config();
 401         }
 402         //update_dipswitch();
 403 }
 404
 405 void VM::reset()
 406 {
 407         // reset all devices
 408         for(DEVICE* device = first_device; device; device = device->next_device) {
 409                 device->reset();
 410         }
 411         //subcpu->reset();
 412         //maincpu->reset();
 413
 414         opn[0]->SetReg(0x2e, 0);        // set prescaler
 415 #if !defined(_FM8)
 416         opn[1]->SetReg(0x2e, 0);        // set prescaler
 417         opn[2]->SetReg(0x2e, 0);        // set prescaler
 418 #endif
 419         // Init OPN/PSG.
 420         // Parameters from XM7.
 421         opn[0]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 422 #if !defined(_FM8)
 423         opn[1]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 424         opn[2]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 425 # if !defined(_FM77AV_VARIANTS)
 426         psg->SetReg(0x27, 0); // stop timer
 427         psg->SetReg(0x2e, 0);   // set prescaler
 428         psg->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 429 # endif
 430 #endif
 431 }
 432
 433 void VM::special_reset()
 434 {
 435         // BREAK + RESET
 436         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 437         mainio->reset();
 438         mainmem->reset();
 439
 440 #if defined(FM77AV_VARIANTS)
 441         mainio->write_signal(FM7_MAINIO_HOT_RESET, 1, 1);
 442 #endif
 443         display->reset();
 444         subcpu->reset();
 445         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 446         maincpu->reset();
 447         event->register_event(mainio, EVENT_UP_BREAK, 10000.0 * 1000.0, false, NULL);
 448 }
 449
 450 void VM::run()
 451 {
 452         event->drive();
 453 }
 454
 455 double VM::frame_rate()
 456 {
 457         return event->frame_rate();
 458 }
 459
 460 #if defined(SUPPORT_DUMMY_DEVICE_LED)
 461 uint32 VM::get_led_status()
 462 {
 463         return led_terminate->read_signal(SIG_DUMMYDEVICE_READWRITE);
 464 }
 465 #endif // SUPPORT_DUMMY_DEVICE_LED
 466
 467
 468 // ----------------------------------------------------------------------------
 469 // debugger
 470 // ----------------------------------------------------------------------------
 471
 472 #ifdef USE_DEBUGGER
 473 DEVICE *VM::get_cpu(int index)
 474 {
 475         if(index == 0) {
 476                 return maincpu;
 477         } else if(index == 1) {
 478                 return subcpu;
 479         }
 480 #if defined(_WITH_Z80)
 481         else if(index == 2) {
 482                 return z80cpu;
 483         }
 484 #endif
 485         return NULL;
 486 }
 487 #endif
 488
 489 // ----------------------------------------------------------------------------
 490 // draw screen
 491 // ----------------------------------------------------------------------------
 492
 493 void VM::draw_screen()
 494 {
 495         display->draw_screen();
 496 }
 497
 498 int VM::access_lamp()
 499 {
 500         uint32 status = fdc->read_signal(0);
 501         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 502 }
 503
 504 void VM::initialize_sound(int rate, int samples)
 505 {
 506         // init sound manager
 507         event->initialize_sound(rate, samples);
 508         // init sound gen
 509 #if defined(_FM8)
 510         opn[0]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 511 #else
 512         opn[0]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 513         opn[1]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 514         opn[2]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 515 # if !defined(_FM77AV_VARIANTS)
 516         psg->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 517 # endif
 518 # if defined(_FM77AV_VARIANTS)
 519         keyboard_beep->init(rate, 2400.0, 512);
 520 # endif
 521 #endif
 522         pcm1bit->init(rate, 2000);
 523         //drec->init_pcm(rate, 0);
 524 }
 525
 526 uint16* VM::create_sound(int* extra_frames)
 527 {
 528         uint16* p = event->create_sound(extra_frames);
 529         return p;
 530 }
 531
 532 int VM::sound_buffer_ptr()
 533 {
 534         int pos = event->sound_buffer_ptr();
 535         return pos;
 536 }
 537
 538 // ----------------------------------------------------------------------------
 539 // notify key
 540 // ----------------------------------------------------------------------------
 541
 542 void VM::key_down(int code, bool repeat)
 543 {
 544         if(!repeat) {
 545                 keyboard->key_down(code);
 546         }
 547 }
 548
 549 void VM::key_up(int code)
 550 {
 551         keyboard->key_up(code);
 552 }
 553
 554 // ----------------------------------------------------------------------------
 555 // user interface
 556 // ----------------------------------------------------------------------------
 557
 558 void VM::open_disk(int drv, const _TCHAR* file_path, int bank)
 559 {
 560         fdc->open_disk(drv, file_path, bank);
 561 }
 562
 563 void VM::close_disk(int drv)
 564 {
 565         fdc->close_disk(drv);
 566 }
 567
 568 bool VM::disk_inserted(int drv)
 569 {
 570         return fdc->disk_inserted(drv);
 571 }
 572
 573 void VM::set_disk_protected(int drv, bool value)
 574 {
 575         fdc->set_disk_protected(drv, value);
 576 }
 577
 578 bool VM::get_disk_protected(int drv)
 579 {
 580         return fdc->get_disk_protected(drv);
 581 }
 582
 583 void VM::play_tape(const _TCHAR* file_path)
 584 {
 585         drec->play_tape(file_path);
 586 }
 587
 588 void VM::rec_tape(const _TCHAR* file_path)
 589 {
 590         drec->rec_tape(file_path);
 591 }
 592
 593 void VM::close_tape()
 594 {
 595         drec->close_tape();
 596 }
 597
 598 bool VM::tape_inserted()
 599 {
 600         return drec->tape_inserted();
 601 }
 602
 603 bool VM::tape_playing()
 604 {
 605         return drec->tape_playing();
 606 }
 607
 608 bool VM::tape_recording()
 609 {
 610         return drec->tape_recording();
 611 }
 612
 613 int VM::tape_position()
 614 {
 615         return drec->tape_position();
 616 }
 617
 618 void VM::push_play()
 619 {
 620         drec->set_ff_rew(0);
 621         drec->set_remote(true);
 622 }
 623
 624
 625 void VM::push_stop()
 626 {
 627         drec->set_remote(false);
 628 }
 629
 630 void VM::push_fast_forward()
 631 {
 632         drec->set_ff_rew(1);
 633         drec->set_remote(true);
 634 }
 635
 636 void VM::push_fast_rewind()
 637 {
 638         drec->set_ff_rew(-1);
 639         drec->set_remote(true);
 640 }
 641
 642 void VM::push_apss_forward()
 643 {
 644         drec->do_apss(1);
 645 }
 646
 647 void VM::push_apss_rewind()
 648 {
 649         drec->do_apss(-1);
 650 }
 651
 652 bool VM::now_skip()
 653 {
 654         return event->now_skip();
 655 }
 656
 657 void VM::update_dipswitch()
 658 {
 659         // bit0         0=High 1=Standard
 660         // bit2         0=5"2D 1=5"2HD
 661   //    io->set_iovalue_single_r(0x1ff0, (config.monitor_type & 1) | ((config.drive_type & 1) << 2));
 662 }
 663
 664 void VM::set_cpu_clock(DEVICE *cpu, uint32 clocks) {
 665         event->set_secondary_cpu_clock(cpu, clocks);
 666 }
 667
 668 #define STATE_VERSION   2
 669 void VM::save_state(FILEIO* state_fio)
 670 {
 671         state_fio->FputUint32_BE(STATE_VERSION);
 672
 673         for(DEVICE* device = first_device; device; device = device->next_device) {
 674                 device->save_state(state_fio);
 675         }
 676         { // V1
 677                 state_fio->FputBool(clock_low);
 678         }
 679 }
 680
 681 bool VM::load_state(FILEIO* state_fio)
 682 {
 683         uint32 version = state_fio->FgetUint32_BE();
 684         int i = 1;
 685         if(version > STATE_VERSION) {
 686                 return false;
 687         }
 688         for(DEVICE* device = first_device; device; device = device->next_device) {
 689                 if(!device->load_state(state_fio)) {
 690                         printf("Load Error: DEVID=%d\n", device->this_device_id);
 691                         return false;
 692                 }
 693         }
 694         if(version >= 1) {// V1
 695                 clock_low   = state_fio->FgetBool();
 696                 if(version == 2) return true;
 697         }
 698         return false;
 699 }
 700
 701 #ifdef USE_DIG_RESOLUTION
 702 void VM::get_screen_resolution(int *w, int *h)
 703 {
 704         switch(display->get_screen_mode()) {
 705         case DISPLAY_MODE_8_200L:
 706         case DISPLAY_MODE_8_200L_TEXT:
 707                 *w = 640;
 708                 *h = 200;
 709                 break;
 710         case DISPLAY_MODE_8_400L:
 711         case DISPLAY_MODE_8_400L_TEXT:
 712                 *w = 640;
 713                 *h = 400;
 714                 break;
 715         case DISPLAY_MODE_4096:
 716         case DISPLAY_MODE_256k:
 717                 *w = 320;
 718                 *h = 200;
 719                 break;
 720         default:
 721                 *w = 640;
 722                 *h = 200;
 723                 break;
 724         }
 725 }
 726 #endif
 727
 728 bool VM::screen_changed()
 729 {
 730         bool f = true;
 731 #if defined(USE_MINIMUM_RENDERING)
 732         f = display->screen_update();
 733         display->reset_screen_update();
 734 #endif
 735         return f;
 736 }