source/src/vm/mz80k/mz80k.cpp

   1 /*
   2         SHARP MZ-80K/C Emulator 'EmuZ-80K'
   3         SHARP MZ-1200 Emulator 'EmuZ-1200'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2010.08.18-
   7
   8         SHARP MZ-80A Emulator 'EmuZ-80A'
   9         Modify : Hideki Suga
  10         Date   : 2014.12.10 -
  11
  12         [ virtual machine ]
  13 */
  14
  15 #include "mz80k.h"
  16 #include "../../emu.h"
  17 #include "../device.h"
  18 #include "../event.h"
  19
  20 #if defined(_MZ1200) || defined(_MZ80A)
  21 #include "../and.h"
  22 #endif
  23 #include "../datarec.h"
  24 #include "../i8253.h"
  25 #include "../i8255.h"
  26 #include "../ls393.h"
  27 #include "../mz1p17.h"
  28 #include "../noise.h"
  29 #include "../pcm1bit.h"
  30 #include "../prnfile.h"
  31 #include "../z80.h"
  32
  33 #ifdef USE_DEBUGGER
  34 #include "../debugger.h"
  35 #endif
  36
  37 #include "keyboard.h"
  38 #include "memory.h"
  39 #include "printer.h"
  40
  41 #if defined(SUPPORT_MZ80AIF)
  42 #include "../io.h"
  43 #include "../disk.h"
  44 #include "../mb8877.h"
  45 #include "mz80aif.h"
  46 #elif defined(SUPPORT_MZ80FIO)
  47 #include "../io.h"
  48 #include "../disk.h"
  49 #include "../t3444a.h"
  50 #include "mz80fio.h"
  51 #endif
  52
  53 // ----------------------------------------------------------------------------
  54 // initialize
  55 // ----------------------------------------------------------------------------
  56
  57 VM::VM(EMU* parent_emu) : emu(parent_emu)
  58 {
  59         // create devices
  60         first_device = last_device = NULL;
  61         dummy = new DEVICE(this, emu);  // must be 1st device
  62         event = new EVENT(this, emu);   // must be 2nd device
  63         dummy->set_device_name(_T("1st Dummy"));
  64
  65 #if defined(_MZ1200) || defined(_MZ80A)
  66         and_int = new AND(this, emu);
  67         and_int->set_device_name(_T("AND Gate (Interrupts)"));
  68 #endif
  69         drec = new DATAREC(this, emu);
  70         drec->set_context_noise_play(new NOISE(this, emu));
  71         drec->set_context_noise_stop(new NOISE(this, emu));
  72         drec->set_context_noise_fast(new NOISE(this, emu));
  73         ctc = new I8253(this, emu);
  74         pio = new I8255(this, emu);
  75         counter = new LS393(this, emu);
  76         pcm = new PCM1BIT(this, emu);
  77         cpu = new Z80(this, emu);
  78         counter->set_device_name(_T("74LS393 Counter (CTC/Sound)"));
  79
  80         keyboard = new KEYBOARD(this, emu);
  81         memory = new MEMORY(this, emu);
  82         printer = new PRINTER(this, emu);
  83 #if defined(SUPPORT_MZ80AIF)
  84         io = new IO(this, emu);
  85         fdc = new MB8877(this, emu);    // mb8866
  86         fdc->set_context_noise_seek(new NOISE(this, emu));
  87         fdc->set_context_noise_head_down(new NOISE(this, emu));
  88         fdc->set_context_noise_head_up(new NOISE(this, emu));
  89         mz80aif = new MZ80AIF(this, emu);
  90 #elif defined(SUPPORT_MZ80FIO)
  91         io = new IO(this, emu);
  92         fdc = new T3444A(this, emu);    // t3444m
  93         fdc->set_context_noise_seek(new NOISE(this, emu));
  94         fdc->set_context_noise_head_down(new NOISE(this, emu));
  95         fdc->set_context_noise_head_up(new NOISE(this, emu));
  96         mz80fio = new MZ80FIO(this, emu);
  97 #endif
  98
  99         // set contexts
 100         event->set_context_cpu(cpu);
 101         event->set_context_sound(pcm);
 102         event->set_context_sound(drec);
 103 #if defined(SUPPORT_MZ80AIF) || defined(SUPPORT_MZ80FIO)
 104         event->set_context_sound(fdc->get_context_noise_seek());
 105         event->set_context_sound(fdc->get_context_noise_head_down());
 106         event->set_context_sound(fdc->get_context_noise_head_up());
 107 #endif
 108         event->set_context_sound(drec->get_context_noise_play());
 109         event->set_context_sound(drec->get_context_noise_stop());
 110         event->set_context_sound(drec->get_context_noise_fast());
 111
 112 #if defined(_MZ1200) || defined(_MZ80A)
 113         and_int->set_context_out(cpu, SIG_CPU_IRQ, 1);
 114         and_int->set_mask(SIG_AND_BIT_0 | SIG_AND_BIT_1);
 115 #endif
 116         drec->set_context_ear(pio, SIG_I8255_PORT_C, 0x20);
 117         drec->set_context_remote(pio, SIG_I8255_PORT_C, 0x10);
 118         ctc->set_context_ch0(counter, SIG_LS393_CLK, 1);
 119         ctc->set_context_ch1(ctc, SIG_I8253_CLOCK_2, 1);
 120 #if defined(_MZ1200) || defined(_MZ80A)
 121         ctc->set_context_ch2(and_int, SIG_AND_BIT_0, 1);
 122 #else
 123         ctc->set_context_ch2(cpu, SIG_CPU_IRQ, 1);
 124 #endif
 125         ctc->set_constant_clock(0, 2000000);
 126         ctc->set_constant_clock(1, 31250);
 127         pio->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0x0f, 0);
 128         pio->set_context_port_c(memory, SIG_MEMORY_VGATE, 1, 0);
 129         pio->set_context_port_c(drec, SIG_DATAREC_MIC, 2, 0);
 130 #if defined(_MZ1200) || defined(_MZ80A)
 131         pio->set_context_port_c(and_int, SIG_AND_BIT_1, 4, 0);
 132 #endif
 133         pio->set_context_port_c(drec, SIG_DATAREC_TRIG, 8, 0);
 134         counter->set_context_1qa(pcm, SIG_PCM1BIT_SIGNAL, 1);
 135         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 136         //pcm->set_realtime_render(true);
 137
 138         keyboard->set_context_pio(pio);
 139         memory->set_context_ctc(ctc);
 140         memory->set_context_pio(pio);
 141
 142 #if defined(SUPPORT_MZ80AIF)
 143         fdc->set_context_irq(memory, SIG_MEMORY_FDC_IRQ, 1);
 144         fdc->set_context_drq(memory, SIG_MEMORY_FDC_DRQ, 1);
 145         mz80aif->set_context_fdc(fdc);
 146 #elif defined(SUPPORT_MZ80FIO)
 147         mz80fio->set_context_fdc(fdc);
 148 #endif
 149
 150         if(config.printer_type == 0) {
 151                 printer->set_context_prn(new PRNFILE(this, emu));
 152         } else if(config.printer_type == 1) {
 153                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 154                 mz1p17->mode = MZ1P17_MODE_MZ80P4;
 155                 printer->set_context_prn(mz1p17);
 156         } else {
 157                 printer->set_context_prn(dummy);
 158         }
 159
 160         // cpu bus
 161         cpu->set_context_mem(memory);
 162 #if defined(SUPPORT_MZ80AIF) || defined(SUPPORT_MZ80FIO)
 163         cpu->set_context_io(io);
 164 #else
 165         cpu->set_context_io(dummy);
 166 #endif
 167         cpu->set_context_intr(dummy);
 168 #ifdef USE_DEBUGGER
 169         cpu->set_context_debugger(new DEBUGGER(this, emu));
 170 #endif
 171
 172         // i/o bus
 173 #if defined(SUPPORT_MZ80AIF)
 174         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 175         io->set_iomap_range_w(0xdc, 0xdd, mz80aif);
 176 #elif defined(SUPPORT_MZ80FIO)
 177         io->set_iomap_range_rw(0xf8, 0xfb, mz80fio);
 178 #endif
 179         io->set_iomap_range_rw(0xfe, 0xff, printer);
 180
 181         // initialize all devices
 182         for(DEVICE* device = first_device; device; device = device->next_device) {
 183                 device->initialize();
 184         }
 185 }
 186
 187 VM::~VM()
 188 {
 189         // delete all devices
 190         for(DEVICE* device = first_device; device;) {
 191                 DEVICE *next_device = device->next_device;
 192                 device->release();
 193                 delete device;
 194                 device = next_device;
 195         }
 196 }
 197
 198 DEVICE* VM::get_device(int id)
 199 {
 200         for(DEVICE* device = first_device; device; device = device->next_device) {
 201                 if(device->this_device_id == id) {
 202                         return device;
 203                 }
 204         }
 205         return NULL;
 206 }
 207
 208 // ----------------------------------------------------------------------------
 209 // drive virtual machine
 210 // ----------------------------------------------------------------------------
 211
 212 void VM::reset()
 213 {
 214         // reset all devices
 215         for(DEVICE* device = first_device; device; device = device->next_device) {
 216                 device->reset();
 217         }
 218 #if defined(SUPPORT_MZ80AIF)
 219         for(int i = 0; i < MAX_DRIVE; i++) {
 220                 if(config.drive_type) {
 221                         fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 222                 } else {
 223                         fdc->set_drive_type(i, DRIVE_TYPE_2D);
 224                 }
 225         }
 226 #elif defined(SUPPORT_MZ80FIO)
 227         for(int i = 0; i < MAX_DRIVE; i++) {
 228                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 229 //              fdc->set_drive_mfm(i, false);
 230         }
 231 #endif
 232 #if defined(_MZ1200) || defined(_MZ80A)
 233         and_int->write_signal(SIG_AND_BIT_0, 0, 1);     // CLOCK = L
 234         and_int->write_signal(SIG_AND_BIT_1, 1, 1);     // INTMASK = H
 235 #endif
 236 }
 237
 238 void VM::run()
 239 {
 240         event->drive();
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // debugger
 245 // ----------------------------------------------------------------------------
 246
 247 #ifdef USE_DEBUGGER
 248 DEVICE *VM::get_cpu(int index)
 249 {
 250         if(index == 0) {
 251                 return cpu;
 252         }
 253         return NULL;
 254 }
 255 #endif
 256
 257 // ----------------------------------------------------------------------------
 258 // draw screen
 259 // ----------------------------------------------------------------------------
 260
 261 void VM::draw_screen()
 262 {
 263         memory->draw_screen();
 264 }
 265
 266 // ----------------------------------------------------------------------------
 267 // soud manager
 268 // ----------------------------------------------------------------------------
 269
 270 void VM::initialize_sound(int rate, int samples)
 271 {
 272         // init sound manager
 273         event->initialize_sound(rate, samples);
 274
 275         // init sound gen
 276         pcm->initialize_sound(rate, 8000);
 277 }
 278
 279 uint16_t* VM::create_sound(int* extra_frames)
 280 {
 281         return event->create_sound(extra_frames);
 282 }
 283
 284 int VM::get_sound_buffer_ptr()
 285 {
 286         return event->get_sound_buffer_ptr();
 287 }
 288
 289 #ifdef USE_SOUND_VOLUME
 290 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 291 {
 292         if(ch-- == 0) {
 293                 pcm->set_volume(0, decibel_l, decibel_r);
 294         } else if(ch-- == 0) {
 295                 drec->set_volume(0, decibel_l, decibel_r);
 296 #if defined(SUPPORT_MZ80AIF) || defined(SUPPORT_MZ80FIO)
 297         } else if(ch-- == 0) {
 298                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 299                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 300                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 301 #endif
 302         } else if(ch-- == 0) {
 303                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 304                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 305                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 306         }
 307 }
 308 #endif
 309
 310 // ----------------------------------------------------------------------------
 311 // notify key
 312 // ----------------------------------------------------------------------------
 313
 314 void VM::key_down(int code, bool repeat)
 315 {
 316         if(!repeat) {
 317                 keyboard->key_down(code);
 318         }
 319 }
 320
 321 void VM::key_up(int code)
 322 {
 323 //      keyboard->key_up(code);
 324 }
 325
 326 bool VM::get_caps_locked()
 327 {
 328         return keyboard->get_caps_locked();
 329 }
 330
 331 bool VM::get_kana_locked()
 332 {
 333         return keyboard->get_kana_locked();
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // user interface
 338 // ----------------------------------------------------------------------------
 339
 340 #if defined(SUPPORT_MZ80AIF) || defined(SUPPORT_MZ80FIO)
 341 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 342 {
 343         fdc->open_disk(drv, file_path, bank);
 344 }
 345
 346 void VM::close_floppy_disk(int drv)
 347 {
 348         fdc->close_disk(drv);
 349 }
 350
 351 bool VM::is_floppy_disk_inserted(int drv)
 352 {
 353         return fdc->is_disk_inserted(drv);
 354 }
 355
 356 void VM::is_floppy_disk_protected(int drv, bool value)
 357 {
 358         fdc->is_disk_protected(drv, value);
 359 }
 360
 361 bool VM::is_floppy_disk_protected(int drv)
 362 {
 363         return fdc->is_disk_protected(drv);
 364 }
 365
 366 uint32_t VM::is_floppy_disk_accessed()
 367 {
 368         return fdc->read_signal(0);
 369 }
 370 #endif
 371
 372
 373 void VM::play_tape(int drv, const _TCHAR* file_path)
 374 {
 375         drec->play_tape(file_path);
 376 //      drec->set_remote(true);
 377 }
 378
 379 void VM::rec_tape(int drv, const _TCHAR* file_path)
 380 {
 381         drec->rec_tape(file_path);
 382 //      drec->set_remote(true);
 383 }
 384
 385 void VM::close_tape(int drv)
 386 {
 387         emu->lock_vm();
 388         drec->close_tape();
 389         emu->unlock_vm();
 390 //      drec->set_remote(false);
 391 }
 392
 393 bool VM::is_tape_inserted(int drv)
 394 {
 395         return drec->is_tape_inserted();
 396 }
 397
 398 bool VM::is_tape_playing(int drv)
 399 {
 400         return drec->is_tape_playing();
 401 }
 402
 403 bool VM::is_tape_recording(int drv)
 404 {
 405         return drec->is_tape_recording();
 406 }
 407
 408 int VM::get_tape_position(int drv)
 409 {
 410         return drec->get_tape_position();
 411 }
 412
 413 const _TCHAR* VM::get_tape_message(int drv)
 414 {
 415         return drec->get_message();
 416 }
 417
 418 void VM::push_play(int drv)
 419 {
 420         drec->set_ff_rew(0);
 421         drec->set_remote(true);
 422 }
 423
 424 void VM::push_stop(int drv)
 425 {
 426         drec->set_remote(false);
 427 }
 428
 429 void VM::push_fast_forward(int drv)
 430 {
 431         drec->set_ff_rew(1);
 432         drec->set_remote(true);
 433 }
 434
 435 void VM::push_fast_rewind(int drv)
 436 {
 437         drec->set_ff_rew(-1);
 438         drec->set_remote(true);
 439 }
 440
 441 bool VM::is_frame_skippable()
 442 {
 443         return event->is_frame_skippable();
 444 }
 445
 446 void VM::update_config()
 447 {
 448         for(DEVICE* device = first_device; device; device = device->next_device) {
 449                 device->update_config();
 450         }
 451 }
 452
 453 #define STATE_VERSION   7
 454
 455 #include "../../statesub.h"
 456
 457 void VM::decl_state(void)
 458 {
 459         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::MZ80_SERIES_HEAD")));
 460
 461         for(DEVICE* device = first_device; device; device = device->next_device) {
 462                 device->decl_state();
 463         }
 464 }
 465
 466 void VM::save_state(FILEIO* state_fio)
 467 {
 468         //state_fio->FputUint32(STATE_VERSION);
 469         if(state_entry != NULL) {
 470                 state_entry->save_state(state_fio);
 471         }
 472         for(DEVICE* device = first_device; device; device = device->next_device) {
 473                 device->save_state(state_fio);
 474         }
 475 }
 476
 477 bool VM::load_state(FILEIO* state_fio)
 478 {
 479         bool mb = false;
 480         if(state_entry != NULL) {
 481                 mb = state_entry->save_state(state_fio);
 482         }
 483         if(!mb) return false;
 484         //if(state_fio->FgetUint32() != STATE_VERSION) {
 485         //      return false;
 486         //}
 487         for(DEVICE* device = first_device; device; device = device->next_device) {
 488                 if(!device->load_state(state_fio)) {
 489                         return false;
 490                 }
 491         }
 492         return true;
 493 }
 494