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