source/src/vm/fm7/fm7.cpp

   1 /*
   2  * FM7 -> VM
   3  * (C) 2015 K.Ohta <whatisthis.sowhat _at_ gmail.com>
   4  * History:
   5  *   Feb 27, 2015 : Initial
   6  */
   7
   8 #include "fm7.h"
   9 #include "../../emu.h"
  10 #include "../../config.h"
  11 #include "../device.h"
  12 #include "../event.h"
  13 #include "../memory.h"
  14 #include "../prnfile.h"
  15
  16 #ifdef USE_DEBUGGER
  17 #include "../debugger.h"
  18 #endif
  19
  20 #include "../datarec.h"
  21 #include "../disk.h"
  22
  23 #include "../mc6809.h"
  24 #include "../z80.h"
  25 #include "../mb8877.h"
  26
  27 #include "../pcm1bit.h"
  28 #include "../ym2203.h"
  29 #if defined(_FM77AV_VARIANTS)
  30 #include "mb61vh010.h"
  31 #include "../beep.h"
  32 #endif
  33 #if defined(HAS_DMA)
  34 #include "hd6844.h"
  35 #endif
  36 #if defined(_FM8)
  37 #include "./bubblecasette.h"
  38 #endif
  39
  40 #if defined(USE_LED_DEVICE)
  41 #include "./dummydevice.h"
  42 #else
  43 #define SIG_DUMMYDEVICE_BIT0 0
  44 #define SIG_DUMMYDEVICE_BIT1 1
  45 #define SIG_DUMMYDEVICE_BIT2 2
  46 #endif
  47
  48 #include "./fm7_mainio.h"
  49 #include "./fm7_mainmem.h"
  50 #include "./fm7_display.h"
  51 #include "./fm7_keyboard.h"
  52 #include "./joystick.h"
  53
  54 #include "./kanjirom.h"
  55
  56 VM::VM(EMU* parent_emu): emu(parent_emu)
  57 {
  58
  59         first_device = last_device = NULL;
  60 #if defined(_FM8)
  61         psg = NULL;
  62 #else
  63 # if defined(_FM77AV_VARIANTS)
  64         opn[0] = opn[1] = opn[2] = NULL;
  65 # else
  66         opn[0] = opn[1] = opn[2] = psg = NULL;
  67 # endif
  68 #endif
  69         dummy = new DEVICE(this, emu);  // must be 1st device
  70         event = new EVENT(this, emu);   // must be 2nd device
  71
  72         dummycpu = new DEVICE(this, emu);
  73         maincpu = new MC6809(this, emu);
  74         subcpu = new MC6809(this, emu);
  75 #ifdef WITH_Z80
  76         z80cpu = new Z80(this, emu);
  77 #endif
  78         // basic devices
  79         // I/Os
  80 #if defined(HAS_DMA)
  81         dmac = new HD6844(this, emu);
  82 #endif
  83 #if defined(_FM8)
  84         psg = new YM2203(this, emu);
  85 #else
  86         opn[0] = new YM2203(this, emu); // OPN
  87         opn[1] = new YM2203(this, emu); // WHG
  88         opn[2] = new YM2203(this, emu); // THG
  89 # if !defined(_FM77AV_VARIANTS)
  90         psg = new YM2203(this, emu);
  91 # endif
  92 #endif
  93 #if defined(_FM8)
  94         for(int i = 0; i < 2; i++) bubble_casette[i] = new BUBBLECASETTE(this, emu);
  95 #endif
  96         drec = new DATAREC(this, emu);
  97         pcm1bit = new PCM1BIT(this, emu);
  98         fdc = new MB8877(this, emu);
  99         joystick  = new JOYSTICK(this, emu);
 100         printer = new PRNFILE(this, emu);
 101 #if defined(_FM77AV_VARIANTS)
 102         alu = new MB61VH010(this, emu);
 103         keyboard_beep = new BEEP(this, emu);
 104 #endif
 105         keyboard = new KEYBOARD(this, emu);
 106         display = new DISPLAY(this, emu);
 107
 108         mainio  = new FM7_MAINIO(this, emu);
 109         mainmem = new FM7_MAINMEM(this, emu);
 110
 111 #if defined(_FM8) || defined(_FM7) || defined(_FMNEW7)
 112         if((config.dipswitch & FM7_DIPSW_CONNECT_KANJIROM) != 0) {
 113                 kanjiclass1 = new KANJIROM(this, emu, false);
 114         } else {
 115                 kanjiclass1 = NULL;
 116         }
 117 #else
 118         kanjiclass1 = new KANJIROM(this, emu, false);
 119 #endif
 120 #ifdef CAPABLE_KANJI_CLASS2
 121         kanjiclass2 = new KANJIROM(this, emu, true);
 122 #endif
 123 #if defined(USE_LED_DEVICE)
 124         led_terminate = new DUMMYDEVICE(this, emu);
 125 #else
 126         led_terminate = new DEVICE(this, emu);
 127 #endif
 128         this->connect_bus();
 129
 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 void VM::connect_bus(void)
 154 {
 155         uint32_t mainclock;
 156         uint32_t subclock;
 157
 158         /*
 159          * CLASS CONSTRUCTION
 160          *
 161          * VM
 162          *  |-> MAINCPU -> MAINMEM -> MAINIO -> MAIN DEVICES
 163          *  |             |        |
 164          *  | -> SUBCPU  -> SUBMEM  -> SUBIO -> SUB DEVICES
 165          *  | -> DISPLAY
 166          *  | -> KEYBOARD
 167          *
 168          *  MAINMEM can access SUBMEM/IO, when SUBCPU is halted.
 169          *  MAINMEM and SUBMEM can access DISPLAY and KEYBOARD with exclusive.
 170          *  MAINCPU can access MAINMEM.
 171          *  SUBCPU  can access SUBMEM.
 172          *  DISPLAY : R/W from MAINCPU and SUBCPU.
 173          *  KEYBOARD : R/W
 174          *
 175          */
 176         event->set_frames_per_sec(FRAMES_PER_SEC);
 177         event->set_lines_per_frame(LINES_PER_FRAME);
 178         //event->set_context_cpu(dummycpu, (CPU_CLOCKS * 3) / 8); // MAYBE FIX With eFM77AV40/20.
 179         // With slow clock (for dummycpu), some softwares happen troubles,
 180         // Use faster clock for dummycpu. 20160319 K.Ohta
 181         event->set_context_cpu(dummycpu, SUBCLOCK_NORMAL);
 182
 183 #if defined(_FM8)
 184         mainclock = MAINCLOCK_SLOW;
 185         subclock = SUBCLOCK_SLOW;
 186 #else
 187         if(config.cpu_type == 0) {
 188                 // 2MHz
 189                 subclock = SUBCLOCK_NORMAL;
 190                 mainclock = MAINCLOCK_NORMAL;
 191         } else {
 192                 // 1.2MHz
 193                 mainclock = MAINCLOCK_SLOW;
 194                 subclock = SUBCLOCK_SLOW;
 195         }
 196         //if((config.dipswitch & FM7_DIPSW_CYCLESTEAL) != 0) subclock = subclock / 3;
 197 #endif
 198         event->set_context_cpu(maincpu, mainclock);
 199         event->set_context_cpu(subcpu,  subclock);
 200
 201 #ifdef WITH_Z80
 202         event->set_context_cpu(z80cpu,  4000000);
 203         z80cpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 204 #endif
 205
 206         event->set_context_sound(pcm1bit);
 207 #if defined(_FM8)
 208         event->set_context_sound(psg);
 209         event->set_context_sound(drec);
 210 #else
 211         event->set_context_sound(opn[0]);
 212         event->set_context_sound(opn[1]);
 213         event->set_context_sound(opn[2]);
 214 # if !defined(_FM77AV_VARIANTS)
 215         event->set_context_sound(psg);
 216 # endif
 217         event->set_context_sound(drec);
 218 # if defined(_FM77AV_VARIANTS)
 219         event->set_context_sound(keyboard_beep);
 220 # endif
 221 #endif
 222 #if !defined(_FM77AV_VARIANTS) && !defined(_FM77L4)
 223         event->register_frame_event(display);
 224 #endif
 225         mainio->set_context_maincpu(maincpu);
 226         mainio->set_context_subcpu(subcpu);
 227
 228         mainio->set_context_display(display);
 229 #if defined(_FM8) || defined(_FM7) || defined(_FMNEW7)
 230         if((config.dipswitch & FM7_DIPSW_CONNECT_KANJIROM) != 0) {
 231                 mainio->set_context_kanjirom_class1(kanjiclass1);
 232         }
 233 #else
 234         mainio->set_context_kanjirom_class1(kanjiclass1);
 235 #endif
 236         mainio->set_context_mainmem(mainmem);
 237         mainio->set_context_keyboard(keyboard);
 238         mainio->set_context_printer(printer);
 239         mainio->set_context_printer_reset(printer, SIG_PRINTER_RESET, 0xffffffff);
 240         mainio->set_context_printer_strobe(printer, SIG_PRINTER_STROBE, 0xffffffff);
 241         mainio->set_context_printer_select(printer, SIG_PRINTER_SELECT, 0xffffffff);
 242 #if defined(CAPABLE_KANJI_CLASS2)
 243         mainio->set_context_kanjirom_class2(kanjiclass2);
 244 #endif
 245 #if defined(_FM8)
 246         for(int i = 0; i < 2; i++) mainio->set_context_bubble(bubble_casette[i], i);
 247 #endif
 248         keyboard->set_context_break_line(mainio, FM7_MAINIO_PUSH_BREAK, 0xffffffff);
 249         keyboard->set_context_int_line(mainio, FM7_MAINIO_KEYBOARDIRQ, 0xffffffff);
 250         keyboard->set_context_int_line(display, SIG_FM7_SUB_KEY_FIRQ, 0xffffffff);
 251 #if defined(_FM77AV_VARIANTS)
 252         keyboard->set_context_beep(keyboard_beep);
 253 #endif
 254         keyboard->set_context_rxrdy(display, SIG_FM7KEY_RXRDY, 0x01);
 255         keyboard->set_context_key_ack(display, SIG_FM7KEY_ACK, 0x01);
 256         keyboard->set_context_ins_led( led_terminate, SIG_DUMMYDEVICE_BIT0, 0xffffffff);
 257         keyboard->set_context_caps_led(led_terminate, SIG_DUMMYDEVICE_BIT1, 0xffffffff);
 258         keyboard->set_context_kana_led(led_terminate, SIG_DUMMYDEVICE_BIT2, 0xffffffff);
 259
 260         drec->set_context_ear(mainio, FM7_MAINIO_CMT_RECV, 0xffffffff);
 261         //drec->set_context_remote(mainio, FM7_MAINIO_CMT_REMOTE, 0xffffffff);
 262         mainio->set_context_datarec(drec);
 263
 264         mainmem->set_context_mainio(mainio);
 265         mainmem->set_context_display(display);
 266         mainmem->set_context_maincpu(maincpu);
 267 #if defined(CAPABLE_DICTROM)
 268         mainmem->set_context_kanjirom_class1(kanjiclass1);
 269 #endif
 270         display->set_context_mainio(mainio);
 271         display->set_context_subcpu(subcpu);
 272         display->set_context_keyboard(keyboard);
 273
 274         mainio->set_context_clock_status(mainmem, FM7_MAINIO_CLOCKMODE, 0xffffffff);
 275         mainio->set_context_clock_status(display, SIG_DISPLAY_CLOCK, 0xffffffff);
 276
 277         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 278         subcpu->set_context_bus_halt(mainmem, SIG_FM7_SUB_HALT, 0xffffffff);
 279
 280 #if defined(_FM77_VARIANTS) || defined(_FM77AV_VARIANTS)
 281         display->set_context_kanjiclass1(kanjiclass1);
 282 #endif
 283 #if defined(CAPABLE_KANJI_CLASS2)
 284         display->set_context_kanjiclass2(kanjiclass2);
 285 #endif
 286 #if defined(_FM77AV_VARIANTS)
 287         display->set_context_alu(alu);
 288         alu->set_context_memory(display);
 289 #endif
 290         // Palette, VSYNC, HSYNC, Multi-page, display mode.
 291         mainio->set_context_display(display);
 292
 293         //FDC
 294         fdc->set_context_irq(mainio, FM7_MAINIO_FDC_IRQ, 0x1);
 295         fdc->set_context_drq(mainio, FM7_MAINIO_FDC_DRQ, 0x1);
 296         mainio->set_context_fdc(fdc);
 297         // SOUND
 298         mainio->set_context_beep(pcm1bit);
 299 #if defined(_FM8)
 300         mainio->set_context_psg(psg);
 301 #else
 302 # if !defined(_FM77AV_VARIANTS)
 303         mainio->set_context_psg(psg);
 304 # endif
 305         opn[0]->set_context_irq(mainio, FM7_MAINIO_OPN_IRQ, 0xffffffff);
 306         mainio->set_context_opn(opn[0], 0);
 307         //joystick->set_context_opn(opn[0]);
 308         mainio->set_context_joystick(joystick);
 309         opn[0]->set_context_port_b(joystick, FM7_JOYSTICK_MOUSE_STROBE, 0xff, 0);
 310
 311         opn[1]->set_context_irq(mainio, FM7_MAINIO_WHG_IRQ, 0xffffffff);
 312         mainio->set_context_opn(opn[1], 1);
 313         opn[2]->set_context_irq(mainio, FM7_MAINIO_THG_IRQ, 0xffffffff);
 314         mainio->set_context_opn(opn[2], 2);
 315 #endif
 316         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 317         subcpu->set_context_bus_clr(display, SIG_FM7_SUB_USE_CLR, 0x0000000f);
 318
 319         event->register_frame_event(joystick);
 320 #if defined(HAS_DMA)
 321         dmac->set_context_src(fdc, 0);
 322         dmac->set_context_dst(mainmem, 0);
 323         dmac->set_context_int_line(mainio, 0, FM7_MAINIO_DMA_INT, 0xffffffff);
 324         dmac->set_context_drq_line(maincpu, 1, SIG_CPU_BUSREQ, 0xffffffff);
 325         mainio->set_context_dmac(dmac);
 326 #endif
 327
 328         // MEMORIES must set before initialize().
 329         maincpu->set_context_mem(mainmem);
 330         subcpu->set_context_mem(display);
 331 #ifdef WITH_Z80
 332         z80cpu->set_context_mem(mainmem);
 333 #endif
 334 #ifdef USE_DEBUGGER
 335         maincpu->set_context_debugger(new DEBUGGER(this, emu));
 336         subcpu->set_context_debugger(new DEBUGGER(this, emu));
 337 # ifdef WITH_Z80
 338         z80cpu->set_context_debugger(new DEBUGGER(this, emu));
 339 # endif
 340 #endif
 341         for(DEVICE* device = first_device; device; device = device->next_device) {
 342                 device->initialize();
 343         }
 344
 345         // Disks
 346         for(int i = 0; i < 2; i++) {
 347 #if defined(_FM77AV20) || defined(_FM77AV20EX) || \
 348         defined(_FM77AV40SX) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 349                 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 350 #else
 351                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 352 #endif
 353                 fdc->set_drive_rpm(i, 360);
 354                 fdc->set_drive_mfm(i, true);
 355         }
 356 #if defined(_FM77) || defined(_FM77L4)
 357         for(int i = 2; i < 4; i++) {
 358                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 359                 fdc->set_drive_rpm(i, 360);
 360                 fdc->set_drive_mfm(i, true);
 361         }
 362 #endif
 363
 364 }
 365
 366 void VM::update_config()
 367 {
 368         uint32_t vol1, vol2, tmpv;
 369         int ii, i_limit;
 370
 371         for(DEVICE* device = first_device; device; device = device->next_device) {
 372                 device->update_config();
 373         }
 374         //update_dipswitch();
 375 }
 376
 377 void VM::reset()
 378 {
 379         // reset all devices
 380         for(DEVICE* device = first_device; device; device = device->next_device) {
 381                 device->reset();
 382         }
 383 #if !defined(_FM77AV_VARIANTS) || defined(_FM8)
 384         psg->set_reg(0x27, 0); // stop timer
 385         psg->set_reg(0x2e, 0);  // set prescaler
 386         psg->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 387 #endif
 388 #if !defined(_FM8)
 389         for(int i = 0; i < 3; i++) {
 390                 opn[i]->set_reg(0x27, 0); // stop timer
 391                 opn[i]->set_reg(0x2e, 0);       // set prescaler
 392                 opn[i]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 393         }
 394 #endif
 395 }
 396
 397 void VM::special_reset()
 398 {
 399         // BREAK + RESET
 400         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 401         mainio->reset();
 402         mainmem->reset();
 403
 404 #if defined(FM77AV_VARIANTS)
 405         mainio->write_signal(FM7_MAINIO_HOT_RESET, 1, 1);
 406 #endif
 407         display->reset();
 408         subcpu->reset();
 409         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 410         maincpu->reset();
 411         event->register_event(mainio, EVENT_UP_BREAK, 10000.0 * 1000.0, false, NULL);
 412 }
 413
 414 void VM::run()
 415 {
 416         event->drive();
 417 }
 418
 419 double VM::get_frame_rate()
 420 {
 421         return event->get_frame_rate();
 422 }
 423
 424 #if defined(USE_LED_DEVICE)
 425 uint32_t VM::get_led_status()
 426 {
 427         return led_terminate->read_signal(SIG_DUMMYDEVICE_READWRITE);
 428 }
 429 #endif // USE_LED_DEVICE
 430
 431
 432 // ----------------------------------------------------------------------------
 433 // debugger
 434 // ----------------------------------------------------------------------------
 435
 436 #ifdef USE_DEBUGGER
 437 DEVICE *VM::get_cpu(int index)
 438 {
 439         if(index == 0) {
 440                 return maincpu;
 441         } else if(index == 1) {
 442                 return subcpu;
 443         }
 444 #if defined(_WITH_Z80)
 445         else if(index == 2) {
 446                 return z80cpu;
 447         }
 448 #endif
 449         return NULL;
 450 }
 451 #endif
 452
 453 // ----------------------------------------------------------------------------
 454 // draw screen
 455 // ----------------------------------------------------------------------------
 456
 457 void VM::draw_screen()
 458 {
 459         display->draw_screen();
 460 }
 461
 462 uint32_t VM::get_access_lamp_status()
 463 {
 464         uint32_t status = fdc->read_signal(0xff);
 465         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 466 }
 467
 468 void VM::initialize_sound(int rate, int samples)
 469 {
 470         // init sound manager
 471         event->initialize_sound(rate, samples);
 472         // init sound gen
 473 #if defined(_FM8)
 474         psg->initialize_sound(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 475 #else
 476         opn[0]->initialize_sound(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 477         opn[1]->initialize_sound(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 478         opn[2]->initialize_sound(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 479 # if !defined(_FM77AV_VARIANTS)
 480         psg->initialize_sound(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 481 # endif
 482 # if defined(_FM77AV_VARIANTS)
 483         keyboard_beep->initialize_sound(rate, 2400.0, 512);
 484 # endif
 485 #endif
 486         pcm1bit->initialize_sound(rate, 2000);
 487         //drec->initialize_sound(rate, 0);
 488 }
 489
 490 uint16* VM::create_sound(int* extra_frames)
 491 {
 492         uint16* p = event->create_sound(extra_frames);
 493         return p;
 494 }
 495
 496 int VM::get_sound_buffer_ptr()
 497 {
 498         int pos = event->get_sound_buffer_ptr();
 499         return pos;
 500 }
 501
 502 #ifdef USE_SOUND_VOLUME
 503 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 504 {
 505 #if !defined(_FM77AV_VARIANTS)
 506         if(ch-- == 0) {
 507                 psg->set_volume(0, decibel_l, decibel_r);
 508                 psg->set_volume(1, decibel_l, decibel_r);
 509         } else
 510 #endif
 511 #if !defined(_FM8)
 512         if(ch-- == 0) {
 513                 opn[0]->set_volume(0, decibel_l, decibel_r);
 514         } else if(ch-- == 0) {
 515                 opn[0]->set_volume(1, decibel_l, decibel_r);
 516         } else if(ch-- == 0) {
 517                 opn[1]->set_volume(0, decibel_l, decibel_r);
 518         } else if(ch-- == 0) {
 519                 opn[1]->set_volume(1, decibel_l, decibel_r);
 520         } else if(ch-- == 0) {
 521                 opn[2]->set_volume(0, decibel_l, decibel_r);
 522         } else if(ch-- == 0) {
 523                 opn[2]->set_volume(1, decibel_l, decibel_r);
 524         } else
 525 #endif
 526         if(ch-- == 0) {
 527                 pcm1bit->set_volume(0, decibel_l, decibel_r);
 528         } else if(ch-- == 0) {
 529                 drec->set_volume(0, decibel_l, decibel_r);
 530         }
 531 #if defined(_FM77AV_VARIANTS)
 532          else if(ch-- == 0) {
 533                 keyboard_beep->set_volume(0, decibel_l, decibel_r);
 534         }
 535 #endif
 536 }
 537 #endif
 538
 539 // ----------------------------------------------------------------------------
 540 // notify key
 541 // ----------------------------------------------------------------------------
 542
 543 void VM::key_down(int code, bool repeat)
 544 {
 545         if(!repeat) {
 546                 keyboard->key_down(code);
 547         }
 548 }
 549
 550 void VM::key_up(int code)
 551 {
 552         keyboard->key_up(code);
 553 }
 554
 555 // ----------------------------------------------------------------------------
 556 // user interface
 557 // ----------------------------------------------------------------------------
 558
 559 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 560 {
 561         fdc->open_disk(drv, file_path, bank);
 562 }
 563
 564 void VM::close_floppy_disk(int drv)
 565 {
 566         fdc->close_disk(drv);
 567 }
 568
 569 bool VM::is_floppy_disk_inserted(int drv)
 570 {
 571         return fdc->is_disk_inserted(drv);
 572 }
 573
 574 void VM::is_floppy_disk_protected(int drv, bool value)
 575 {
 576         fdc->is_disk_protected(drv, value);
 577 }
 578
 579 bool VM::is_floppy_disk_protected(int drv)
 580 {
 581         return fdc->is_disk_protected(drv);
 582 }
 583
 584 void VM::play_tape(const _TCHAR* file_path)
 585 {
 586         drec->play_tape(file_path);
 587 }
 588
 589 void VM::rec_tape(const _TCHAR* file_path)
 590 {
 591         drec->rec_tape(file_path);
 592 }
 593
 594 void VM::close_tape()
 595 {
 596         drec->close_tape();
 597 }
 598
 599 bool VM::is_tape_inserted()
 600 {
 601         return drec->is_tape_inserted();
 602 }
 603
 604 bool VM::is_tape_playing()
 605 {
 606         return drec->is_tape_playing();
 607 }
 608
 609 bool VM::is_tape_recording()
 610 {
 611         return drec->is_tape_recording();
 612 }
 613
 614 int VM::get_tape_position()
 615 {
 616         return drec->get_tape_position();
 617 }
 618
 619 void VM::push_play()
 620 {
 621         drec->set_ff_rew(0);
 622         drec->set_remote(true);
 623 }
 624
 625
 626 void VM::push_stop()
 627 {
 628         drec->set_remote(false);
 629 }
 630
 631 void VM::push_fast_forward()
 632 {
 633         drec->set_ff_rew(1);
 634         drec->set_remote(true);
 635 }
 636
 637 void VM::push_fast_rewind()
 638 {
 639         drec->set_ff_rew(-1);
 640         drec->set_remote(true);
 641 }
 642
 643 void VM::push_apss_forward()
 644 {
 645         drec->do_apss(1);
 646 }
 647
 648 void VM::push_apss_rewind()
 649 {
 650         drec->do_apss(-1);
 651 }
 652
 653 bool VM::is_frame_skippable()
 654 {
 655         return event->is_frame_skippable();
 656 }
 657
 658 void VM::update_dipswitch()
 659 {
 660         // bit0         0=High 1=Standard
 661         // bit2         0=5"2D 1=5"2HD
 662   //    io->set_iovalue_single_r(0x1ff0, (config.monitor_type & 1) | ((config.drive_type & 1) << 2));
 663 }
 664
 665 void VM::set_cpu_clock(DEVICE *cpu, uint32_t clocks) {
 666         event->set_secondary_cpu_clock(cpu, clocks);
 667 }
 668
 669 #if defined(USE_BUBBLE1)
 670 void VM::open_bubble_casette(int drv, _TCHAR *path, int bank)
 671 {
 672         if((drv >= 2) || (drv < 0)) return;
 673         if(bubble_casette[drv] == NULL) return;
 674         bubble_casette[drv]->open(path, bank);
 675 }
 676
 677 void VM::close_bubble_casette(int drv)
 678 {
 679         if((drv >= 2) || (drv < 0)) return;
 680         if(bubble_casette[drv] == NULL) return;
 681         bubble_casette[drv]->close();
 682 }
 683
 684 bool VM::is_bubble_casette_inserted(int drv)
 685 {
 686         if((drv >= 2) || (drv < 0)) return false;
 687         if(bubble_casette[drv] == NULL) return false;
 688         return bubble_casette[drv]->is_bubble_inserted();
 689 }
 690
 691 bool VM::is_bubble_casette_protected(int drv)
 692 {
 693         if((drv >= 2) || (drv < 0)) return false;
 694         if(bubble_casette[drv] == NULL) return false;
 695         return bubble_casette[drv]->is_bubble_protected();
 696 }
 697
 698 void VM::is_bubble_casette_protected(int drv, bool flag)
 699 {
 700         if((drv >= 2) || (drv < 0)) return;
 701         if(bubble_casette[drv] == NULL) return;
 702         bubble_casette[drv]->set_bubble_protect(flag);
 703 }
 704 #endif
 705
 706
 707 #define STATE_VERSION   3
 708 void VM::save_state(FILEIO* state_fio)
 709 {
 710         state_fio->FputUint32_BE(STATE_VERSION);
 711         for(DEVICE* device = first_device; device; device = device->next_device) {
 712                 device->save_state(state_fio);
 713         }
 714 }
 715
 716 bool VM::load_state(FILEIO* state_fio)
 717 {
 718         uint32_t version = state_fio->FgetUint32_BE();
 719         int i = 1;
 720         if(version != STATE_VERSION) {
 721                 return false;
 722         }
 723         for(DEVICE* device = first_device; device; device = device->next_device) {
 724                 if(!device->load_state(state_fio)) {
 725                         printf("Load Error: DEVID=%d\n", device->this_device_id);
 726                         return false;
 727                 }
 728         }
 729         return true;
 730 }
 731
 732 #ifdef USE_DIG_RESOLUTION
 733 void VM::get_screen_resolution(int *w, int *h)
 734 {
 735         switch(display->get_screen_mode()) {
 736         case DISPLAY_MODE_8_200L:
 737         case DISPLAY_MODE_8_200L_TEXT:
 738                 *w = 640;
 739                 *h = 200;
 740                 break;
 741         case DISPLAY_MODE_8_400L:
 742         case DISPLAY_MODE_8_400L_TEXT:
 743                 *w = 640;
 744                 *h = 400;
 745                 break;
 746         case DISPLAY_MODE_4096:
 747         case DISPLAY_MODE_256k:
 748                 *w = 320;
 749                 *h = 200;
 750                 break;
 751         default:
 752                 *w = 640;
 753                 *h = 200;
 754                 break;
 755         }
 756 }
 757 #endif
 758
 759 bool VM::is_screen_changed()
 760 {
 761         bool f = true;
 762 #if defined(USE_MINIMUM_RENDERING)
 763         f = display->screen_update();
 764         display->reset_screen_update();
 765 #endif
 766         return f;
 767 }