source/src/vm/pc8801/pc8801.cpp

   1 /*
   2         NEC PC-8801MA Emulator 'ePC-8801MA'
   3         NEC PC-8001mkIISR Emulator 'ePC-8001mkIISR'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2012.02.16-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "pc8801.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../i8251.h"
  17 #include "../i8255.h"
  18 #include "../pcm1bit.h"
  19 //#include "../pcpr201.h"
  20 #include "../prnfile.h"
  21 #include "../upd1990a.h"
  22 #include "../ym2203.h"
  23 #include "../z80.h"
  24
  25 #include "../disk.h"
  26 #include "../noise.h"
  27 #include "../pc80s31k.h"
  28 #include "../upd765a.h"
  29
  30 #ifdef USE_DEBUGGER
  31 #include "../debugger.h"
  32 #endif
  33
  34 #ifdef SUPPORT_PC88_PCG8100
  35 #include "../i8253.h"
  36 #endif
  37
  38 #include "pc88.h"
  39
  40 // ----------------------------------------------------------------------------
  41 // initialize
  42 // ----------------------------------------------------------------------------
  43
  44 VM::VM(EMU* parent_emu) : emu(parent_emu)
  45 {
  46         // check configs
  47         boot_mode = config.boot_mode;
  48
  49         // create devices
  50         first_device = last_device = NULL;
  51         dummy = new DEVICE(this, emu);  // must be 1st device
  52
  53         pc88event = new EVENT(this, emu);
  54         pc88event->set_device_name(_T("Event Manager (PC-8801)"));
  55 //      pc88event->set_frames_per_sec(60);
  56 //      pc88event->set_lines_per_frame(260);
  57         dummy->set_device_name(_T("1st Dummy"));
  58         pc88 = new PC88(this, emu);
  59
  60   #if defined(_PC8001) || defined(_PC8001MK2) || defined(_PC8001SR)
  61         pc88->set_device_name(_T("PC8001 MAIN"));
  62   #else
  63         pc88->set_device_name(_T("PC8801 MAIN"));
  64   #endif
  65 //      pc88->set_context_event_manager(pc88event);
  66         pc88sio = new I8251(this, emu);
  67 //      pc88sio->set_device_name(_T("8251 SIO (PC-8801)"));
  68 //      pc88sio->set_context_event_manager(pc88event);
  69         pc88pio = new I8255(this, emu);
  70 //      pc88pio->set_device_name(_T("8255 PIO (PC-8801)"));
  71 //      pc88pio->set_context_event_manager(pc88event);
  72         pc88pcm = new PCM1BIT(this, emu);
  73 //      pc88pcm->set_device_name(_T("1-Bit PCM Sound (PC-8801)"));
  74 //      pc88pcm->set_context_event_manager(pc88event);
  75         pc88rtc = new UPD1990A(this, emu);
  76 //      pc88rtc->set_device_name(_T("uPD1990A RTC (PC-8801)"));
  77 //      pc88rtc->set_context_event_manager(pc88event);
  78         // config.sound_type
  79         //      0: 44h:OPNA A4h:None            PC-8801FH/MH or later
  80         //      1: 44h:OPN  A4h:None            PC-8801mkIISR/TR/MR/FR
  81         //      2: 44h:OPN  A4h:OPNA            PC-8801mkIISR/TR/MR/FR + PC-8801-23
  82         pc88opn = new YM2203(this, emu);
  83 //      pc88opn->set_context_event_manager(pc88event);
  84 #ifdef USE_SOUND_TYPE
  85 #ifdef SUPPORT_PC88_OPNA
  86         if(config.sound_type == 0) {
  87                 pc88opn->set_device_name(_T("YM2608 OPNA"));
  88         } else {
  89                 pc88opn->set_device_name(_T("YM2203 OPN"));
  90         }
  91         pc88opn->is_ym2608 = (config.sound_type == 0);
  92 #endif
  93 #ifdef SUPPORT_PC88_SB2
  94         if(config.sound_type == 2) {
  95                 pc88sb2 = new YM2203(this, emu);
  96 #ifdef SUPPORT_PC88_OPNA
  97                 pc88sb2->set_device_name(_T("YM2608 OPNA (SB2)"));
  98                 pc88sb2->is_ym2608 = true;
  99 #else
 100                 pc88sb2->set_device_name(_T("YM2203 OPN (SB2)"));
 101 #endif
 102 //              pc88sb2->set_context_event_manager(pc88event);
 103         } else {
 104                 pc88sb2 = NULL;
 105         }
 106 #endif
 107 #endif
 108         if(config.printer_type == 0) {
 109                 pc88prn = new PRNFILE(this, emu);
 110 //              pc88prn->set_context_event_manager(pc88event);
 111 //      } else if(config.printer_type == 1) {
 112 //              pc88prn = new PCPR201(this, emu);
 113 //              pc88prn->set_context_event_manager(pc88event);
 114         } else {
 115                 pc88prn = dummy;
 116         }
 117
 118         dummycpu = new DEVICE(this, emu);
 119         pc88cpu = new Z80(this, emu);
 120 //      pc88cpu->set_context_event_manager(pc88event);
 121         dummycpu->set_device_name(_T("DUMMY CPU"));
 122         pc88cpu->set_device_name(_T("MAIN CPU(Z80)"));
 123
 124         pc88sub = new PC80S31K(this, emu);
 125         pc88sub->set_device_name(_T("PC-80S31K (Sub)"));
 126 //      pc88sub->set_context_event_manager(pc88event);
 127         pc88pio_sub = new I8255(this, emu);
 128         pc88pio_sub->set_device_name(_T("8255 PIO (Sub)"));
 129 //      pc88pio_sub->set_context_event_manager(pc88event);
 130         pc88fdc_sub = new UPD765A(this, emu);
 131         pc88fdc_sub->set_device_name(_T("uPD765A FDC (Sub)"));
 132 //      pc88fdc_sub->set_context_event_manager(pc88event);
 133         pc88noise_seek = new NOISE(this, emu);
 134 //      pc88noise_seek->set_context_event_manager(pc88event);
 135         pc88noise_head_down = new NOISE(this, emu);
 136 //      pc88noise_head_down->set_context_event_manager(pc88event);
 137         pc88noise_head_up = new NOISE(this, emu);
 138 //      pc88noise_head_up->set_context_event_manager(pc88event);
 139         pc88cpu_sub = new Z80(this, emu);
 140         pc88cpu_sub->set_device_name(_T("Z80 CPU (Sub)"));
 141 //      pc88cpu_sub->set_context_event_manager(pc88event);
 142
 143 #ifdef SUPPORT_PC88_PCG8100
 144         pc88pit = new I8253(this, emu);
 145 //      pc88pit->set_context_event_manager(pc88event);
 146         pc88pcm0 = new PCM1BIT(this, emu);
 147 //      pc88pcm0->set_context_event_manager(pc88event);
 148         pc88pcm1 = new PCM1BIT(this, emu);
 149 //      pc88pcm1->set_context_event_manager(pc88event);
 150         pc88pcm2 = new PCM1BIT(this, emu);
 151 //      pc88pcm2->set_context_event_manager(pc88event);
 152         pc88pit->set_device_name(_T("i8253 PIT (PCG8100)"));
 153         pc88pcm0->set_device_name(_T("SOUND #1 (PCG8100)"));
 154         pc88pcm1->set_device_name(_T("SOUND #2 (PCG8100)"));
 155         pc88pcm2->set_device_name(_T("SOUND #3 (PCG8100)"));
 156 #endif
 157
 158         pc88event->set_context_cpu(dummycpu, 3993624 / 4);
 159 #ifdef SUPPORT_PC88_HIGH_CLOCK
 160         pc88event->set_context_cpu(pc88cpu, (config.cpu_type != 0) ? 3993624 : 7987248);
 161 #else
 162         pc88event->set_context_cpu(pc88cpu, 3993624);
 163 #endif
 164         pc88event->set_context_cpu(pc88cpu_sub, 3993624);
 165         pc88event->set_context_sound(pc88opn);
 166 #ifdef SUPPORT_PC88_SB2
 167         if(pc88sb2 != NULL) {
 168                 pc88event->set_context_sound(pc88sb2);
 169         }
 170 #endif
 171         pc88event->set_context_sound(pc88pcm);
 172 #ifdef SUPPORT_PC88_PCG8100
 173         pc88event->set_context_sound(pc88pcm0);
 174         pc88event->set_context_sound(pc88pcm1);
 175         pc88event->set_context_sound(pc88pcm2);
 176 #endif
 177         pc88event->set_context_sound(pc88noise_seek);
 178         pc88event->set_context_sound(pc88noise_head_down);
 179         pc88event->set_context_sound(pc88noise_head_up);
 180         pc88->set_context_cpu(pc88cpu);
 181         pc88->set_context_opn(pc88opn);
 182 #ifdef SUPPORT_PC88_SB2
 183         pc88->set_context_sb2(pc88sb2);
 184 #endif
 185         pc88->set_context_pcm(pc88pcm);
 186         pc88->set_context_pio(pc88pio);
 187         pc88->set_context_prn(pc88prn);
 188         pc88->set_context_rtc(pc88rtc);
 189         pc88->set_context_sio(pc88sio);
 190 #ifdef SUPPORT_PC88_PCG8100
 191         pc88->set_context_pcg_pit(pc88pit);
 192         pc88->set_context_pcg_pcm0(pc88pcm0);
 193         pc88->set_context_pcg_pcm1(pc88pcm1);
 194         pc88->set_context_pcg_pcm2(pc88pcm2);
 195 #endif
 196         pc88cpu->set_context_mem(pc88);
 197         pc88cpu->set_context_io(pc88);
 198         pc88cpu->set_context_intr(pc88);
 199 #ifdef USE_DEBUGGER
 200         pc88cpu->set_context_debugger(new DEBUGGER(this, emu));
 201 #endif
 202         pc88opn->set_context_irq(pc88, SIG_PC88_SOUND_IRQ, 1);
 203 #ifdef SUPPORT_PC88_SB2
 204         if(pc88sb2 != NULL) {
 205                 pc88sb2->set_context_irq(pc88, SIG_PC88_SB2_IRQ, 1);
 206         }
 207 #endif
 208         pc88sio->set_context_rxrdy(pc88, SIG_PC88_USART_IRQ, 1);
 209         pc88sio->set_context_out(pc88, SIG_PC88_USART_OUT);
 210
 211         pc88sub->set_context_cpu(pc88cpu_sub);
 212         pc88sub->set_context_fdc(pc88fdc_sub);
 213         pc88sub->set_context_pio(pc88pio_sub);
 214         pc88pio->set_context_port_a(pc88pio_sub, SIG_I8255_PORT_B, 0xff, 0);
 215         pc88pio->set_context_port_b(pc88pio_sub, SIG_I8255_PORT_A, 0xff, 0);
 216         pc88pio->set_context_port_c(pc88pio_sub, SIG_I8255_PORT_C, 0x0f, 4);
 217         pc88pio->set_context_port_c(pc88pio_sub, SIG_I8255_PORT_C, 0xf0, -4);
 218         pc88pio->clear_ports_by_cmdreg = true;
 219         pc88pio_sub->set_context_port_a(pc88pio, SIG_I8255_PORT_B, 0xff, 0);
 220         pc88pio_sub->set_context_port_b(pc88pio, SIG_I8255_PORT_A, 0xff, 0);
 221         pc88pio_sub->set_context_port_c(pc88pio, SIG_I8255_PORT_C, 0x0f, 4);
 222         pc88pio_sub->set_context_port_c(pc88pio, SIG_I8255_PORT_C, 0xf0, -4);
 223         pc88pio_sub->clear_ports_by_cmdreg = true;
 224         pc88fdc_sub->set_context_irq(pc88cpu_sub, SIG_CPU_IRQ, 1);
 225         pc88fdc_sub->set_context_noise_seek(pc88noise_seek);
 226         pc88fdc_sub->set_context_noise_head_down(pc88noise_head_down);
 227         pc88fdc_sub->set_context_noise_head_up(pc88noise_head_up);
 228         pc88cpu_sub->set_context_mem(pc88sub);
 229         pc88cpu_sub->set_context_io(pc88sub);
 230         pc88cpu_sub->set_context_intr(pc88sub);
 231 #ifdef USE_DEBUGGER
 232         pc88cpu_sub->set_context_debugger(new DEBUGGER(this, emu));
 233 #endif
 234
 235 #ifdef SUPPORT_PC88_PCG8100
 236         pc88pit->set_context_ch0(pc88pcm0, SIG_PCM1BIT_SIGNAL, 1);
 237         pc88pit->set_context_ch1(pc88pcm1, SIG_PCM1BIT_SIGNAL, 1);
 238         pc88pit->set_context_ch2(pc88pcm2, SIG_PCM1BIT_SIGNAL, 1);
 239         pc88pit->set_constant_clock(0, 3993624);
 240         pc88pit->set_constant_clock(1, 3993624);
 241         pc88pit->set_constant_clock(2, 3993624);
 242 #endif
 243
 244         // initialize all devices
 245         for(DEVICE* device = first_device; device; device = device->next_device) {
 246                 device->initialize();
 247         }
 248 }
 249
 250 VM::~VM()
 251 {
 252         // delete all devices
 253         for(DEVICE* device = first_device; device;) {
 254                 DEVICE *next_device = device->next_device;
 255                 device->release();
 256                 delete device;
 257                 device = next_device;
 258         }
 259 }
 260
 261 DEVICE* VM::get_device(int id)
 262 {
 263         for(DEVICE* device = first_device; device; device = device->next_device) {
 264                 if(device->this_device_id == id) {
 265                         return device;
 266                 }
 267         }
 268         return NULL;
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // drive virtual machine
 273 // ----------------------------------------------------------------------------
 274
 275 void VM::reset()
 276 {
 277         // reset all devices
 278         for(DEVICE* device = first_device; device; device = device->next_device) {
 279                 device->reset();
 280         }
 281         for(DEVICE* device = first_device; device; device = device->next_device) {
 282                 device->reset();
 283         }
 284
 285         // initial device settings
 286         pc88opn->set_reg(0x29, 3); // for Misty Blue
 287         pc88pio->write_signal(SIG_I8255_PORT_C, 0, 0xff);
 288         pc88pio_sub->write_signal(SIG_I8255_PORT_C, 0, 0xff);
 289 }
 290
 291 void VM::run()
 292 {
 293         pc88event->drive();
 294 }
 295
 296 double VM::get_frame_rate()
 297 {
 298         return pc88event->get_frame_rate();
 299 }
 300
 301 // ----------------------------------------------------------------------------
 302 // debugger
 303 // ----------------------------------------------------------------------------
 304
 305 #ifdef USE_DEBUGGER
 306 DEVICE *VM::get_cpu(int index)
 307 {
 308         if(index == 0) {
 309                 return pc88cpu;
 310         } else if(index == 1) {
 311                 return pc88cpu_sub;
 312         }
 313         return NULL;
 314 }
 315 #endif
 316
 317 // ----------------------------------------------------------------------------
 318 // draw screen
 319 // ----------------------------------------------------------------------------
 320
 321 void VM::draw_screen()
 322 {
 323         pc88->draw_screen();
 324 }
 325
 326 // ----------------------------------------------------------------------------
 327 // soud manager
 328 // ----------------------------------------------------------------------------
 329
 330 void VM::initialize_sound(int rate, int samples)
 331 {
 332         // init sound manager
 333         pc88event->initialize_sound(rate, samples);
 334
 335         // init sound gen
 336 #ifdef SUPPORT_PC88_OPNA
 337         if(pc88opn->is_ym2608) {
 338                 pc88opn->initialize_sound(rate, 7987248, samples, 0, 0);
 339         } else
 340 #endif
 341         pc88opn->initialize_sound(rate, 3993624, samples, 0, 0);
 342 #ifdef SUPPORT_PC88_SB2
 343         if(pc88sb2 != NULL) {
 344 #ifdef SUPPORT_PC88_OPNA
 345                 if(pc88sb2->is_ym2608) {
 346                         pc88sb2->initialize_sound(rate, 7987248, samples, 0, 0);
 347                 } else
 348 #endif
 349                 pc88sb2->initialize_sound(rate, 3993624, samples, 0, 0);
 350         }
 351 #endif
 352         pc88pcm->initialize_sound(rate, 8000);
 353 #ifdef SUPPORT_PC88_PCG8100
 354         pc88pcm0->initialize_sound(rate, 8000);
 355         pc88pcm1->initialize_sound(rate, 8000);
 356         pc88pcm2->initialize_sound(rate, 8000);
 357 #endif
 358 }
 359
 360 uint16_t* VM::create_sound(int* extra_frames)
 361 {
 362         return pc88event->create_sound(extra_frames);
 363 }
 364
 365 int VM::get_sound_buffer_ptr()
 366 {
 367         return pc88event->get_sound_buffer_ptr();
 368 }
 369
 370 #ifdef USE_SOUND_VOLUME
 371 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 372 {
 373         if(ch-- == 0) {
 374                 pc88opn->set_volume(0, decibel_l, decibel_r);
 375         } else if(ch-- == 0) {
 376                 pc88opn->set_volume(1, decibel_l, decibel_r);
 377 #ifdef SUPPORT_PC88_OPNA
 378         } else if(ch-- == 0) {
 379                 pc88opn->set_volume(2, decibel_l, decibel_r);
 380         } else if(ch-- == 0) {
 381                 pc88opn->set_volume(3, decibel_l, decibel_r);
 382 #endif
 383 #ifdef SUPPORT_PC88_SB2
 384         } else if(ch-- == 0) {
 385                 if(pc88sb2 != NULL) {
 386                         pc88sb2->set_volume(0, decibel_l, decibel_r);
 387                 }
 388         } else if(ch-- == 0) {
 389                 if(pc88sb2 != NULL) {
 390                         pc88sb2->set_volume(1, decibel_l, decibel_r);
 391                 }
 392         } else if(ch-- == 0) {
 393                 if(pc88sb2 != NULL) {
 394                         pc88sb2->set_volume(2, decibel_l, decibel_r);
 395                 }
 396         } else if(ch-- == 0) {
 397                 if(pc88sb2 != NULL) {
 398                         pc88sb2->set_volume(3, decibel_l, decibel_r);
 399                 }
 400 #endif
 401 #ifdef SUPPORT_PC88_PCG8100
 402         } else if(ch-- == 0) {
 403                 pc88pcm0->set_volume(0, decibel_l, decibel_r);
 404                 pc88pcm1->set_volume(0, decibel_l, decibel_r);
 405                 pc88pcm2->set_volume(0, decibel_l, decibel_r);
 406 #endif
 407         } else if(ch-- == 0) {
 408                 pc88pcm->set_volume(0, decibel_l, decibel_r);
 409         } else if(ch-- == 0) {
 410                 pc88noise_seek->set_volume(0, decibel_l, decibel_r);
 411                 pc88noise_head_down->set_volume(0, decibel_l, decibel_r);
 412                 pc88noise_head_up->set_volume(0, decibel_l, decibel_r);
 413         }
 414 }
 415 #endif
 416
 417 // ----------------------------------------------------------------------------
 418 // notify key
 419 // ----------------------------------------------------------------------------
 420
 421 void VM::key_down(int code, bool repeat)
 422 {
 423         pc88->key_down(code, repeat);
 424 }
 425
 426 void VM::key_up(int code)
 427 {
 428 }
 429
 430 bool VM::get_caps_locked()
 431 {
 432         return pc88->get_caps_locked();
 433 }
 434
 435 bool VM::get_kana_locked()
 436 {
 437         return pc88->get_kana_locked();
 438 }
 439
 440 // ----------------------------------------------------------------------------
 441 // user interface
 442 // ----------------------------------------------------------------------------
 443
 444 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 445 {
 446         pc88fdc_sub->open_disk(drv, file_path, bank);
 447 }
 448
 449 void VM::close_floppy_disk(int drv)
 450 {
 451         pc88fdc_sub->close_disk(drv);
 452 }
 453
 454 bool VM::is_floppy_disk_inserted(int drv)
 455 {
 456         return pc88fdc_sub->is_disk_inserted(drv);
 457 }
 458
 459 void VM::is_floppy_disk_protected(int drv, bool value)
 460 {
 461         pc88fdc_sub->is_disk_protected(drv, value);
 462 }
 463
 464 bool VM::is_floppy_disk_protected(int drv)
 465 {
 466         return pc88fdc_sub->is_disk_protected(drv);
 467 }
 468
 469 uint32_t VM::is_floppy_disk_accessed()
 470 {
 471         return pc88fdc_sub->read_signal(0);
 472 }
 473
 474 void VM::play_tape(int drv, const _TCHAR* file_path)
 475 {
 476         pc88->play_tape(file_path);
 477 }
 478
 479 void VM::rec_tape(int drv, const _TCHAR* file_path)
 480 {
 481         pc88->rec_tape(file_path);
 482 }
 483
 484 void VM::close_tape(int drv)
 485 {
 486         pc88->close_tape();
 487 }
 488
 489 bool VM::is_tape_inserted(int drv)
 490 {
 491         return pc88->is_tape_inserted();
 492 }
 493
 494 bool VM::is_frame_skippable()
 495 {
 496 //      return event->is_frame_skippable();
 497         return pc88->is_frame_skippable();
 498 }
 499
 500 void VM::update_config()
 501 {
 502         if(boot_mode != config.boot_mode) {
 503                 // boot mode is changed !!!
 504                 boot_mode = config.boot_mode;
 505                 reset();
 506         } else {
 507                 for(DEVICE* device = first_device; device; device = device->next_device) {
 508                         device->update_config();
 509                 }
 510         }
 511 }
 512
 513 #define STATE_VERSION   7
 514
 515 void VM::save_state(FILEIO* state_fio)
 516 {
 517         state_fio->FputUint32(STATE_VERSION);
 518
 519         for(DEVICE* device = first_device; device; device = device->next_device) {
 520                 device->save_state(state_fio);
 521         }
 522         state_fio->FputInt32(boot_mode);
 523 }
 524
 525 bool VM::load_state(FILEIO* state_fio)
 526 {
 527         if(state_fio->FgetUint32() != STATE_VERSION) {
 528                 return false;
 529         }
 530         for(DEVICE* device = first_device; device; device = device->next_device) {
 531                 if(!device->load_state(state_fio)) {
 532                         return false;
 533                 }
 534         }
 535         boot_mode = state_fio->FgetInt32();
 536         return true;
 537 }
 538