source/src/vm/mz2500/mz2500.cpp

   1 /*
   2         SHARP MZ-2500 Emulator 'EmuZ-2500'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2006.11.24 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "mz2500.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../disk.h"
  17 #include "../harddisk.h"
  18 #include "../i8253.h"
  19 #include "../i8255.h"
  20 #include "../io.h"
  21 #include "../mb8877.h"
  22 #include "../mz1p17.h"
  23 #include "../noise.h"
  24 #include "../pcm1bit.h"
  25 //#include "../pcpr201.h"
  26 #include "../prnfile.h"
  27 #include "../rp5c01.h"
  28 #include "../scsi_hdd.h"
  29 #include "../scsi_host.h"
  30 #include "../w3100a.h"
  31 #include "../ym2203.h"
  32 #include "../z80.h"
  33 #include "../z80pio.h"
  34 #include "../z80sio.h"
  35
  36 #ifdef USE_DEBUGGER
  37 #include "../debugger.h"
  38 #endif
  39
  40 #include "calendar.h"
  41 #include "cmt.h"
  42 #include "crtc.h"
  43 #include "floppy.h"
  44 #include "interrupt.h"
  45 #include "joystick.h"
  46 #include "keyboard.h"
  47 #include "./memory.h"
  48 #include "mouse.h"
  49 #include "mz1e26.h"
  50 #include "mz1e30.h"
  51 #include "mz1r13.h"
  52 #include "mz1r37.h"
  53 #include "printer.h"
  54 #include "serial.h"
  55 #include "timer.h"
  56
  57 using MZ2500::CALENDAR;
  58 using MZ2500::CMT;
  59 using MZ2500::CRTC;
  60 using MZ2500::FLOPPY;
  61 using MZ2500::INTERRUPT;
  62 using MZ2500::JOYSTICK;
  63 using MZ2500::KEYBOARD;
  64 using MZ2500::MEMORY;
  65 using MZ2500::MOUSE;
  66 using MZ2500::MZ1E26;
  67 using MZ2500::MZ1E30;
  68 using MZ2500::MZ1R13;
  69 using MZ2500::MZ1R37;
  70 using MZ2500::PRINTER;
  71 using MZ2500::SERIAL;
  72 using MZ2500::TIMER;
  73
  74 // ----------------------------------------------------------------------------
  75 // initialize
  76 // ----------------------------------------------------------------------------
  77
  78 VM::VM(EMU_TEMPLATE* parent_emu) : VM_TEMPLATE(parent_emu)
  79 {
  80         // create devices
  81         first_device = last_device = NULL;
  82         dummy = new DEVICE(this, emu);  // must be 1st device
  83         event = new EVENT(this, emu);   // must be 2nd device
  84         dummy->set_device_name(_T("1st Dummy"));
  85
  86         drec = new DATAREC(this, emu);
  87         drec->set_context_noise_play(new NOISE(this, emu));
  88         drec->set_context_noise_stop(new NOISE(this, emu));
  89         drec->set_context_noise_fast(new NOISE(this, emu));
  90         pit = new I8253(this, emu);
  91         pio_i = new I8255(this, emu);
  92         io = new IO(this, emu);
  93         io->space = 0x100;
  94         fdc = new MB8877(this, emu);
  95         fdc->set_context_noise_seek(new NOISE(this, emu));
  96         fdc->set_context_noise_head_down(new NOISE(this, emu));
  97         fdc->set_context_noise_head_up(new NOISE(this, emu));
  98 #ifdef USE_DEBUGGER
  99 //      fdc->set_context_debugger(new DEBUGGER(this, emu));
 100 #endif
 101         pcm = new PCM1BIT(this, emu);
 102 #ifdef USE_DEBUGGER
 103 //      pcm->set_context_debugger(new DEBUGGER(this, emu));
 104 #endif
 105         rtc = new RP5C01(this, emu);    // RP-5C15
 106         sasi_host = new SCSI_HOST(this, emu);
 107         sasi_hdd = new SASI_HDD(this, emu);
 108         sasi_hdd->set_device_name(_T("SASI Hard Disk Drive"));
 109         sasi_hdd->scsi_id = 0;
 110 //      sasi_hdd->bytes_per_sec = 32 * 1024; // 32KB/s
 111         sasi_hdd->bytes_per_sec = 3600 / 60 * 256 * 33; // 3600rpm, 256bytes x 33sectors in track (thanks Mr.Sato)
 112         for(int i = 0; i < USE_HARD_DISK; i++) {
 113                 sasi_hdd->set_disk_handler(i, new HARDDISK(emu));
 114         }
 115         sasi_hdd->set_context_interface(sasi_host);
 116         sasi_host->set_context_target(sasi_hdd);
 117         w3100a = new W3100A(this, emu);
 118         opn = new YM2203(this, emu);
 119 #ifdef USE_DEBUGGER
 120         opn->set_context_debugger(new DEBUGGER(this, emu));
 121 #endif
 122         cpu = new Z80(this, emu);
 123         pio = new Z80PIO(this, emu);
 124         sio = new Z80SIO(this, emu);
 125
 126         pio_i->set_device_name(_T("i8255 PIO(CMT/CRTC)"));
 127         pio->set_device_name(_T("Z80 PIO(KEYBOARD/CRTC)"));
 128         sio->set_device_name(_T("Z80 SIO(MOUSE)"));
 129
 130
 131         calendar = new CALENDAR(this, emu);
 132         cmt = new CMT(this, emu);
 133         crtc = new CRTC(this, emu);
 134         floppy = new FLOPPY(this, emu);
 135         interrupt = new INTERRUPT(this, emu);
 136         joystick = new JOYSTICK(this, emu);
 137         keyboard = new KEYBOARD(this, emu);
 138         memory = new MEMORY(this, emu);
 139         mouse = new MOUSE(this, emu);
 140         mz1e26 = new MZ1E26(this, emu);
 141         mz1e30 = new MZ1E30(this, emu);
 142         mz1r13 = new MZ1R13(this, emu);
 143         mz1r37 = new MZ1R37(this, emu);
 144         printer = new PRINTER(this, emu);
 145         serial = new SERIAL(this, emu);
 146         timer = new TIMER(this, emu);
 147         // set contexts
 148         event->set_context_cpu(cpu, config.boot_mode ? CPU_CLOCKS_LOW : CPU_CLOCKS);
 149         event->set_context_sound(opn);
 150         event->set_context_sound(pcm);
 151         event->set_context_sound(drec);
 152         event->set_context_sound(fdc->get_context_noise_seek());
 153         event->set_context_sound(fdc->get_context_noise_head_down());
 154         event->set_context_sound(fdc->get_context_noise_head_up());
 155         event->set_context_sound(drec->get_context_noise_play());
 156         event->set_context_sound(drec->get_context_noise_stop());
 157         event->set_context_sound(drec->get_context_noise_fast());
 158
 159         drec->set_context_ear(cmt, SIG_CMT_OUT, 1);
 160         drec->set_context_remote(cmt, SIG_CMT_REMOTE, 1);
 161         drec->set_context_end(cmt, SIG_CMT_END, 1);
 162         drec->set_context_top(cmt, SIG_CMT_TOP, 1);
 163
 164         pit->set_context_ch0(interrupt, SIG_INTERRUPT_I8253, 1);
 165         pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
 166         pit->set_context_ch1(pit, SIG_I8253_CLOCK_2, 1);
 167         pit->set_constant_clock(0, 31250);
 168         pio_i->set_context_port_a(cmt, SIG_CMT_PIO_PA, 0xff, 0);
 169         pio_i->set_context_port_c(cmt, SIG_CMT_PIO_PC, 0xff, 0);
 170         pio_i->set_context_port_a(crtc, SIG_CRTC_REVERSE, 0x10, 0);
 171         pio_i->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
 172         pio_i->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
 173         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 174         //pcm->set_realtime_render(true);
 175
 176
 177         rtc->set_context_alarm(interrupt, SIG_INTERRUPT_RP5C15, 1);
 178         rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
 179         sasi_host->set_context_irq(mz1e30, SIG_MZ1E30_IRQ, 1);
 180         sasi_host->set_context_drq(mz1e30, SIG_MZ1E30_DRQ, 1);
 181         opn->set_context_port_a(floppy, SIG_FLOPPY_REVERSE, 0x02, 0);
 182         opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
 183         opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
 184         pio->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
 185         pio->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0x1f, 0);
 186         pio->set_context_port_a(memory, SIG_MEMORY_VRAM_SEL, 0xc0, 0);
 187         sio->set_context_dtr(1, mouse, SIG_MOUSE_DTR, 1);
 188
 189         calendar->set_context_rtc(rtc);
 190         cmt->set_context_pio(pio_i);
 191         cmt->set_context_drec(drec);
 192         crtc->set_context_mem(memory);
 193         crtc->set_context_int(interrupt);
 194         crtc->set_context_pio(pio_i);
 195         crtc->set_vram_ptr(memory->get_vram());
 196         crtc->set_tvram_ptr(memory->get_tvram());
 197         crtc->set_kanji_ptr(memory->get_kanji());
 198         crtc->set_pcg_ptr(memory->get_pcg());
 199         floppy->set_context_fdc(fdc);
 200         keyboard->set_context_pio_i(pio_i);
 201         keyboard->set_context_pio(pio);
 202         memory->set_context_cpu(cpu);
 203         memory->set_context_crtc(crtc);
 204         mouse->set_context_sio(sio);
 205         mz1e30->set_context_host(sasi_host);
 206         if(config.printer_type == 0) {
 207                 printer->set_context_prn(new PRNFILE(this, emu));
 208         } else if(config.printer_type == 1) {
 209                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 210                 mz1p17->mode = MZ1P17_MODE_MZ1;
 211                 printer->set_context_prn(mz1p17);
 212 //      } else if(config.printer_type == 2) {
 213 //              printer->set_context_prn(new PCPR201(this, emu));
 214         } else {
 215                 printer->set_context_prn(dummy);
 216         }
 217         serial->set_context_sio(sio);
 218         timer->set_context_pit(pit);
 219
 220         // cpu bus
 221         cpu->set_context_mem(memory);
 222         cpu->set_context_io(io);
 223         cpu->set_context_intr(pio);
 224 #ifdef USE_DEBUGGER
 225         cpu->set_context_debugger(new DEBUGGER(this, emu));
 226 #endif
 227
 228         // z80 family daisy chain
 229         pio->set_context_intr(cpu, 0);
 230         pio->set_context_child(sio);
 231         sio->set_context_intr(cpu, 1);
 232         sio->set_context_child(interrupt);
 233         interrupt->set_context_intr(cpu, 2);
 234
 235         // i/o bus
 236         io->set_iomap_range_rw(0x60, 0x63, w3100a);
 237         io->set_iomap_range_rw(0xa0, 0xa3, serial);
 238         io->set_iomap_range_rw(0xa4, 0xa5, mz1e30);
 239         io->set_iomap_range_rw(0xa8, 0xa9, mz1e30);
 240         io->set_iomap_range_rw(0xac, 0xad, mz1r37);
 241         io->set_iomap_single_w(0xae, crtc);
 242         io->set_iomap_range_rw(0xb0, 0xb3, serial);
 243         io->set_iomap_range_rw(0xb4, 0xb5, memory);
 244         io->set_iomap_single_w(0xb7, memory);
 245         io->set_iomap_range_rw(0xb8, 0xb9, mz1r13);
 246         io->set_iomap_range_rw(0xbc, 0xbf, crtc);
 247         io->set_iomap_range_w(0xc6, 0xc7, interrupt);
 248         io->set_iomap_range_rw(0xc8, 0xc9, opn);
 249         io->set_iomap_single_rw(0xca, mz1e26);
 250         io->set_iomap_single_rw(0xcc, calendar);
 251         io->set_iomap_single_w(0xcd, serial);
 252         io->set_iomap_range_w(0xce, 0xcf, memory);
 253         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 254         io->set_iomap_range_w(0xdc, 0xdd, floppy);
 255         io->set_iomap_range_rw(0xe0, 0xe3, pio_i);
 256         io->set_iomap_range_rw(0xe4, 0xe7, pit);
 257         io->set_iomap_range_rw(0xe8, 0xeb, pio);
 258         io->set_iomap_single_rw(0xef, joystick);
 259         io->set_iomap_range_w(0xf0, 0xf3, timer);
 260         io->set_iomap_range_rw(0xf4, 0xf7, crtc);
 261         io->set_iomap_range_rw(0xfe, 0xff, printer);
 262
 263         if(config.boot_mode == 0) {
 264                 io->set_iowait_range_rw(0xd8, 0xdf, 1); // nfdcs
 265                 io->set_iowait_range_rw(0xe8, 0xeb, 1); // npioc
 266         }
 267         io->set_iowait_range_rw(0xc8, 0xc9, 1); // nopnc
 268         io->set_iowait_single_rw(0xcc, 3);      // nrtcs
 269
 270         // initialize all devices
 271 #if defined(__GIT_REPO_VERSION)
 272         set_git_repo_version(__GIT_REPO_VERSION);
 273 #endif
 274         initialize_devices();
 275
 276         for(int drv = 0; drv < MAX_DRIVE; drv++) {
 277 //              if(config.drive_type) {
 278 //                      fdc->set_drive_type(drv, DRIVE_TYPE_2D);
 279 //              } else {
 280                         fdc->set_drive_type(drv, DRIVE_TYPE_2DD);
 281 //              }
 282         }
 283         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 284                 if(!(config.last_hard_disk_path[drv][0] != _T('\0') && FILEIO::IsFileExisting(config.last_hard_disk_path[drv]))) {
 285                         create_local_path(config.last_hard_disk_path[drv], _MAX_PATH, _T("SASI%d.DAT"), drv);
 286                 }
 287         }
 288         boot_mode = config.boot_mode;
 289         monitor_type = config.monitor_type;
 290 }
 291
 292 VM::~VM()
 293 {
 294         // delete all devices
 295         for(DEVICE* device = first_device; device;) {
 296                 DEVICE *next_device = device->next_device;
 297                 device->release();
 298                 delete device;
 299                 device = next_device;
 300         }
 301 }
 302
 303 DEVICE* VM::get_device(int id)
 304 {
 305         for(DEVICE* device = first_device; device; device = device->next_device) {
 306                 if(device->this_device_id == id) {
 307                         return device;
 308                 }
 309         }
 310         return NULL;
 311 }
 312
 313 // ----------------------------------------------------------------------------
 314 // drive virtual machine
 315 // ----------------------------------------------------------------------------
 316
 317 void VM::reset()
 318 {
 319         // reset all devices
 320         for(DEVICE* device = first_device; device; device = device->next_device) {
 321                 device->reset();
 322         }
 323
 324         // set initial port status
 325         uint8_t port_b = 0x37;
 326         if(boot_mode == 1) {
 327                 port_b &= ~0x10;
 328         } else if(boot_mode == 2) {
 329                 port_b &= ~0x20;
 330         }
 331         if(monitor_type & 2) {
 332                 port_b |= 0x40;
 333         }
 334         opn->write_signal(SIG_YM2203_PORT_B, port_b, 0xff);
 335 }
 336
 337 void VM::special_reset(int num)
 338 {
 339         // reset all devices
 340 //      for(DEVICE* device = first_device; device; device = device->next_device) {
 341 //              device->special_reset();
 342 //      }
 343         memory->special_reset(num);
 344         cpu->special_reset(num);
 345 }
 346
 347 void VM::run()
 348 {
 349         event->drive();
 350 }
 351
 352 double VM::get_frame_rate()
 353 {
 354         return event->get_frame_rate();
 355 }
 356
 357 // ----------------------------------------------------------------------------
 358 // debugger
 359 // ----------------------------------------------------------------------------
 360
 361 #ifdef USE_DEBUGGER
 362 DEVICE *VM::get_cpu(int index)
 363 {
 364         if(index == 0) {
 365                 return cpu;
 366         }
 367         return NULL;
 368 }
 369 #endif
 370
 371 // ----------------------------------------------------------------------------
 372 // draw screen
 373 // ----------------------------------------------------------------------------
 374
 375 void VM::draw_screen()
 376 {
 377         crtc->draw_screen();
 378 }
 379
 380 // ----------------------------------------------------------------------------
 381 // soud manager
 382 // ----------------------------------------------------------------------------
 383
 384 void VM::initialize_sound(int rate, int samples)
 385 {
 386         // init sound manager
 387         event->initialize_sound(rate, samples);
 388
 389         // init sound gen
 390         opn->initialize_sound(rate, 2000000, samples, 0, -8);
 391         pcm->initialize_sound(rate, 4096);
 392 }
 393
 394 uint16_t* VM::create_sound(int* extra_frames)
 395 {
 396         return event->create_sound(extra_frames);
 397 }
 398
 399 int VM::get_sound_buffer_ptr()
 400 {
 401         return event->get_sound_buffer_ptr();
 402 }
 403
 404 #ifdef USE_SOUND_VOLUME
 405 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 406 {
 407         if(ch == 0) {
 408                 opn->set_volume(0, decibel_l, decibel_r);
 409         } else if(ch == 1) {
 410                 opn->set_volume(1, decibel_l, decibel_r);
 411         } else if(ch == 2) {
 412                 pcm->set_volume(0, decibel_l, decibel_r);
 413         } else if(ch == 3) {
 414                 drec->set_volume(0, decibel_l, decibel_r);
 415         } else if(ch == 4) {
 416                 drec->set_volume(1, decibel_l, decibel_r);
 417         } else if(ch == 5) {
 418                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 419                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 420                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 421         } else if(ch == 6) {
 422                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 423                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 424                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 425         }
 426 }
 427 #endif
 428
 429 // ----------------------------------------------------------------------------
 430 // socket
 431 // ----------------------------------------------------------------------------
 432
 433 void VM::notify_socket_connected(int ch)
 434 {
 435         w3100a->notify_connected(ch);
 436 }
 437
 438 void VM::notify_socket_disconnected(int ch)
 439 {
 440         w3100a->notify_disconnected(ch);
 441 }
 442
 443 uint8_t* VM::get_socket_send_buffer(int ch, int* size)
 444 {
 445         return w3100a->get_send_buffer(ch, size);
 446 }
 447
 448 void VM::inc_socket_send_buffer_ptr(int ch, int size)
 449 {
 450         w3100a->inc_send_buffer_ptr(ch, size);
 451 }
 452
 453 uint8_t* VM::get_socket_recv_buffer0(int ch, int* size0, int* size1)
 454 {
 455         return w3100a->get_recv_buffer0(ch, size0, size1);
 456 }
 457
 458 uint8_t* VM::get_socket_recv_buffer1(int ch)
 459 {
 460         return w3100a->get_recv_buffer1(ch);
 461 }
 462
 463 void VM::inc_socket_recv_buffer_ptr(int ch, int size)
 464 {
 465         w3100a->inc_recv_buffer_ptr(ch, size);
 466 }
 467
 468 // ----------------------------------------------------------------------------
 469 // user interface
 470 // ----------------------------------------------------------------------------
 471
 472 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 473 {
 474         fdc->open_disk(drv, file_path, bank);
 475
 476         if(fdc->get_media_type(drv) == MEDIA_TYPE_2DD) {
 477                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2D) {
 478                         fdc->set_drive_type(drv, DRIVE_TYPE_2DD);
 479                 }
 480         } else if(fdc->get_media_type(drv) == MEDIA_TYPE_2D) {
 481                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2DD) {
 482                         fdc->set_drive_type(drv, DRIVE_TYPE_2D);
 483                 }
 484         }
 485 }
 486
 487 void VM::close_floppy_disk(int drv)
 488 {
 489         fdc->close_disk(drv);
 490 }
 491
 492 bool VM::is_floppy_disk_inserted(int drv)
 493 {
 494         return fdc->is_disk_inserted(drv);
 495 }
 496
 497 void VM::is_floppy_disk_protected(int drv, bool value)
 498 {
 499         fdc->is_disk_protected(drv, value);
 500 }
 501
 502 bool VM::is_floppy_disk_protected(int drv)
 503 {
 504         return fdc->is_disk_protected(drv);
 505 }
 506
 507 uint32_t VM::is_floppy_disk_accessed()
 508 {
 509         return fdc->read_signal(0);
 510 }
 511
 512 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 513 {
 514         if(drv < USE_HARD_DISK) {
 515                 sasi_hdd->open(drv, file_path, 256);
 516         }
 517 }
 518
 519 void VM::close_hard_disk(int drv)
 520 {
 521         if(drv < USE_HARD_DISK) {
 522                 sasi_hdd->close(drv);
 523         }
 524 }
 525
 526 bool VM::is_hard_disk_inserted(int drv)
 527 {
 528         if(drv < USE_HARD_DISK) {
 529                 return sasi_hdd->mounted(drv);
 530         }
 531         return false;
 532 }
 533
 534 uint32_t VM::is_hard_disk_accessed()
 535 {
 536         uint32_t status = 0;
 537
 538         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 539                 if(sasi_hdd->accessed(drv)) {
 540                         status |= 1 << drv;
 541                 }
 542         }
 543         return status;
 544 }
 545
 546 void VM::play_tape(int drv, const _TCHAR* file_path)
 547 {
 548         bool remote = drec->get_remote();
 549         bool opened = drec->play_tape(file_path);
 550
 551         if(opened && remote) {
 552                 // if machine already sets remote on, start playing now
 553                 push_play(drv);
 554         }
 555         cmt->close_tape();
 556         cmt->play_tape(opened);
 557 }
 558
 559 void VM::rec_tape(int drv, const _TCHAR* file_path)
 560 {
 561         bool remote = drec->get_remote();
 562         bool opened = drec->rec_tape(file_path);
 563
 564         if(opened && remote) {
 565                 // if machine already sets remote on, start recording now
 566                 push_play(drv);
 567         }
 568         cmt->close_tape();
 569         cmt->rec_tape(opened);
 570 }
 571
 572 void VM::close_tape(int drv)
 573 {
 574         emu->lock_vm();
 575         drec->close_tape();
 576         emu->unlock_vm();
 577         drec->set_remote(false);
 578         cmt->close_tape();
 579 }
 580
 581 bool VM::is_tape_inserted(int drv)
 582 {
 583         return drec->is_tape_inserted();
 584 }
 585
 586 bool VM::is_tape_playing(int drv)
 587 {
 588         return drec->is_tape_playing();
 589 }
 590
 591 bool VM::is_tape_recording(int drv)
 592 {
 593         return drec->is_tape_recording();
 594 }
 595
 596 int VM::get_tape_position(int drv)
 597 {
 598         return drec->get_tape_position();
 599 }
 600
 601 const _TCHAR* VM::get_tape_message(int drv)
 602 {
 603         return drec->get_message();
 604 }
 605
 606 void VM::push_play(int drv)
 607 {
 608         drec->set_remote(false);
 609         drec->set_ff_rew(0);
 610         drec->set_remote(true);
 611 }
 612
 613 void VM::push_stop(int drv)
 614 {
 615         drec->set_remote(false);
 616 }
 617
 618 void VM::push_fast_forward(int drv)
 619 {
 620         drec->set_remote(false);
 621         drec->set_ff_rew(1);
 622         drec->set_remote(true);
 623 }
 624
 625 void VM::push_fast_rewind(int drv)
 626 {
 627         drec->set_remote(false);
 628         drec->set_ff_rew(-1);
 629         drec->set_remote(true);
 630 }
 631
 632 bool VM::is_frame_skippable()
 633 {
 634         return event->is_frame_skippable();
 635 }
 636
 637 void VM::update_config()
 638 {
 639         for(DEVICE* device = first_device; device; device = device->next_device) {
 640                 device->update_config();
 641         }
 642 }
 643
 644 double VM::get_current_usec()
 645 {
 646         if(event == NULL) return 0.0;
 647         return event->get_current_usec();
 648 }
 649
 650 uint64_t VM::get_current_clock_uint64()
 651 {
 652                 if(event == NULL) return (uint64_t)0;
 653                 return event->get_current_clock_uint64();
 654 }
 655
 656 #define STATE_VERSION   9
 657
 658 bool VM::process_state(FILEIO* state_fio, bool loading)
 659 {
 660         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
 661                 return false;
 662         }
 663         // Machine specified.
 664         state_fio->StateValue(boot_mode);
 665         state_fio->StateValue(monitor_type);
 666         return true;
 667 }