source/src/vm/fm7/fm7.cpp

   1
   2 /*
   3  * FM7 -> VM
   4  * (C) 2015 K.Ohta <whatisthis.sowhat _at_ gmail.com>
   5  * History:
   6  *   Feb 27, 2015 : Initial
   7  */
   8
   9 #include "fm7.h"
  10 #include "../../emu.h"
  11 #include "../../config.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14 #include "../memory.h"
  15 #ifdef USE_DEBUGGER
  16 #include "../debugger.h"
  17 #endif
  18
  19
  20 #include "../datarec.h"
  21 #include "../disk.h"
  22
  23 #include "../mc6809.h"
  24 #include "../z80.h"
  25 #include "../ym2203.h"
  26 #include "../mb8877.h"
  27 //#include "../beep.h"
  28 #include "../pcm1bit.h"
  29 #include "../ym2203.h"
  30 #if defined(_FM77AV_VARIANTS)
  31 #include "./mb61vh010.h"
  32 #endif
  33
  34 #include "./fm7_mainio.h"
  35 #include "./fm7_mainmem.h"
  36 #include "./fm7_display.h"
  37 #include "./fm7_keyboard.h"
  38
  39 #include "./kanjirom.h"
  40
  41 VM::VM(EMU* parent_emu): emu(parent_emu)
  42 {
  43
  44         first_device = last_device = NULL;
  45         connect_opn = false;
  46         connect_whg = false;
  47         connect_thg = false;
  48         opn[0] = opn[1] = opn[2] = psg = NULL;
  49
  50         dummy = new DEVICE(this, emu);  // must be 1st device
  51         event = new EVENT(this, emu);   // must be 2nd device
  52
  53         dummycpu = new DEVICE(this, emu);
  54         // basic devices
  55         maincpu = new MC6809(this, emu);
  56         subcpu = new MC6809(this, emu);
  57 #ifdef WITH_Z80
  58         z80cpu = new Z80(this, emu);
  59 #endif
  60         keyboard = new KEYBOARD(this, emu);
  61 #if defined(_FM77AV_VARIANTS)
  62         alu = new MB61VH010(this, emu);
  63 #endif
  64         // I/Os
  65         drec = new DATAREC(this, emu);
  66         pcm1bit = new PCM1BIT(this, emu);
  67 //      beep = new BEEP(this, emu);
  68         fdc  = new MB8877(this, emu);
  69
  70         opn[0] = new YM2203(this, emu); // OPN
  71         opn[1] = new YM2203(this, emu); // WHG
  72         opn[2] = new YM2203(this, emu); // THG
  73 #if !defined(_FM77AV_VARIANTS)
  74         psg = new YM2203(this, emu);
  75 #endif
  76         kanjiclass1 = new KANJIROM(this, emu, false);
  77 #ifdef CAPABLE_KANJI_CLASS2
  78         kanjiclass2 = new KANJIROM(this, emu, true);
  79 #endif
  80         mainio  = new FM7_MAINIO(this, emu);
  81         mainmem = new FM7_MAINMEM(this, emu);
  82         display = new DISPLAY(this, emu);
  83
  84         connect_bus();
  85         initialize();
  86 }
  87
  88 VM::~VM()
  89 {
  90         // delete all devices
  91         for(DEVICE* device = first_device; device;) {
  92                 DEVICE *next_device = device->next_device;
  93                 device->release();
  94                 delete device;
  95                 device = next_device;
  96         }
  97 }
  98
  99 DEVICE* VM::get_device(int id)
 100 {
 101         for(DEVICE* device = first_device; device; device = device->next_device) {
 102                 if(device->this_device_id == id) {
 103                         return device;
 104                 }
 105         }
 106         return NULL;
 107 }
 108
 109
 110 void VM::initialize(void)
 111 {
 112 #if defined(_FM8) || defined(_FM7)
 113         cycle_steal = false;
 114 #else
 115         cycle_steal = true;
 116 #endif
 117         clock_low = false;
 118
 119 }
 120
 121
 122 void VM::connect_bus(void)
 123 {
 124         uint32 mainclock;
 125         uint32 subclock;
 126         int i;
 127
 128         /*
 129          * CLASS CONSTRUCTION
 130          *
 131          * VM
 132          *  |-> MAINCPU -> MAINMEM -> MAINIO -> MAIN DEVICES
 133          *  |             |        |
 134          *  | -> SUBCPU  -> SUBMEM  -> SUBIO -> SUB DEVICES
 135          *  | -> DISPLAY
 136          *  | -> KEYBOARD
 137          *
 138          *  MAINMEM can access SUBMEM/IO, when SUBCPU is halted.
 139          *  MAINMEM and SUBMEM can access DISPLAY and KEYBOARD with exclusive.
 140          *  MAINCPU can access MAINMEM.
 141          *  SUBCPU  can access SUBMEM.
 142          *  DISPLAY : R/W from MAINCPU and SUBCPU.
 143          *  KEYBOARD : R/W
 144          *
 145          */
 146         event->set_frames_per_sec(60.00);
 147         event->set_lines_per_frame(400);
 148 #if defined(_FM77AV40) || defined(_FM77AV20)
 149         event->set_context_cpu(dummycpu, MAINCLOCK_FAST_MMR * 2);
 150 #else
 151         event->set_context_cpu(dummycpu, SUBCLOCK_NORMAL * 2);
 152 #endif
 153
 154 #if defined(_FM8)
 155         mainclock = MAINCLOCK_SLOW;
 156         subclock = SUBCLOCK_SLOW;
 157 #else
 158         if(config.cpu_type == 0) {
 159                 // 2MHz
 160                 subclock = SUBCLOCK_NORMAL;
 161                 mainclock = MAINCLOCK_NORMAL;
 162         } else {
 163                 // 1.2MHz
 164                 mainclock = MAINCLOCK_SLOW;
 165                 subclock = SUBCLOCK_SLOW;
 166         }
 167 #endif
 168 #if defined(_FM77AV40) || defined(_FM77AV20)
 169         event->set_context_cpu(maincpu, MAINCLOCK_FAST_MMR);
 170 #else
 171         event->set_context_cpu(maincpu, MAINCLOCK_NORMAL);
 172 #endif
 173         event->set_context_cpu(subcpu,  SUBCLOCK_NORMAL);
 174
 175 #ifdef WITH_Z80
 176         event->set_context_cpu(z80cpu,  4000000);
 177         z80cpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 178 #endif
 179
 180         event->set_context_sound(pcm1bit);
 181 #if !defined(_FM77AV_VARIANTS)
 182         mainio->set_context_psg(psg);
 183         event->set_context_sound(psg);
 184 #endif
 185         event->set_context_sound(opn[0]);
 186         event->set_context_sound(opn[1]);
 187         event->set_context_sound(opn[2]);
 188         event->set_context_sound(drec);
 189         //event->register_vline_event(display);
 190         event->register_frame_event(display);
 191         //event->register_vline_event(mainio);
 192
 193         mainio->set_context_maincpu(maincpu);
 194         mainio->set_context_subcpu(subcpu);
 195
 196         mainio->set_context_display(display);
 197         mainio->set_context_kanjirom_class1(kanjiclass1);
 198         mainio->set_context_mainmem(mainmem);
 199         mainio->set_context_keyboard(keyboard);
 200
 201 #if defined(CAPABLE_KANJI_CLASS2)
 202         mainio->set_context_kanjirom_class2(kanjiclass2);
 203 #endif
 204
 205         keyboard->set_context_break_line(mainio, FM7_MAINIO_PUSH_BREAK, 0xffffffff);
 206         keyboard->set_context_mainio(mainio);
 207         keyboard->set_context_display(display);
 208
 209         keyboard->set_context_rxrdy(keyboard, SIG_FM7KEY_RXRDY, 0x01);
 210         keyboard->set_context_rxrdy(display, SIG_FM7KEY_RXRDY, 0x01);
 211
 212         keyboard->set_context_key_ack(keyboard, SIG_FM7KEY_ACK, 0x01);
 213         keyboard->set_context_key_ack(display, SIG_FM7KEY_ACK, 0x01);
 214
 215         drec->set_context_out(mainio, FM7_MAINIO_CMT_RECV, 0xffffffff);
 216         //drec->set_context_remote(mainio, FM7_MAINIO_CMT_REMOTE, 0xffffffff);
 217         mainio->set_context_datarec(drec);
 218         mainmem->set_context_mainio(mainio);
 219         mainmem->set_context_display(display);
 220         mainmem->set_context_maincpu(maincpu);
 221
 222         display->set_context_mainio(mainio);
 223         display->set_context_subcpu(subcpu);
 224         display->set_context_keyboard(keyboard);
 225         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 226
 227         display->set_context_kanjiclass1(kanjiclass1);
 228 #if defined(CAPABLE_KANJI_CLASS2)
 229         display->set_context_kanjiclass2(kanjiclass2);
 230 #endif
 231 #if defined(_FM77AV_VARIANTS)
 232         display->set_context_alu(alu);
 233         alu->set_context_memory(display);
 234 #endif
 235         // Palette, VSYNC, HSYNC, Multi-page, display mode.
 236         mainio->set_context_display(display);
 237
 238         //FDC
 239         mainio->set_context_fdc(fdc);
 240         fdc->set_context_irq(mainio, FM7_MAINIO_FDC_IRQ, 0x1);
 241         fdc->set_context_drq(mainio, FM7_MAINIO_FDC_DRQ, 0x1);
 242         // SOUND
 243         mainio->set_context_beep(pcm1bit);
 244         //mainio->set_context_beep(beep);
 245
 246         opn[0]->set_context_irq(mainio, FM7_MAINIO_OPN_IRQ, 0xffffffff);
 247         //opn[0]->set_context_port_a(mainio, FM7_MAINIO_OPNPORTA_CHANGED, 0xff, 0);
 248         //opn[0]->set_context_port_b(mainio, FM7_MAINIO_OPNPORTB_CHANGED, 0xff, 0);
 249         mainio->set_context_opn(opn[0], 0);
 250         opn[1]->set_context_irq(mainio, FM7_MAINIO_WHG_IRQ, 0xffffffff);
 251         mainio->set_context_opn(opn[1], 1);
 252         opn[2]->set_context_irq(mainio, FM7_MAINIO_THG_IRQ, 0xffffffff);
 253         mainio->set_context_opn(opn[2], 2);
 254
 255         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 256         subcpu->set_context_bus_clr(display, SIG_FM7_SUB_USE_CLR, 0x0000000f);
 257
 258         maincpu->set_context_mem(mainmem);
 259         subcpu->set_context_mem(display);
 260 #ifdef USE_DEBUGGER
 261         maincpu->set_context_debugger(new DEBUGGER(this, emu));
 262         subcpu->set_context_debugger(new DEBUGGER(this, emu));
 263 #endif
 264
 265         for(DEVICE* device = first_device; device; device = device->next_device) {
 266                 device->initialize();
 267         }
 268         //maincpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 269         //subcpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 270
 271         for(int i = 0; i < 2; i++) {
 272 #if defined(_FM77AV20) || defined(_FM77AV40SX) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 273                 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 274 #else
 275                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 276 #endif
 277                 fdc->set_drive_rpm(i, 360);
 278                 fdc->set_drive_mfm(i, true);
 279         }
 280 #if defined(_FM77) || defined(_FM77L4)
 281         for(int i = 2; i < 4; i++) {
 282                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 283 //              fdc->set_drive_rpm(i, 300);
 284 //              fdc->set_drive_mfm(i, true);
 285         }
 286 #endif
 287
 288 }
 289
 290 void VM::update_config()
 291 {
 292 #if !defined(_FM8)
 293         switch(config.cpu_type){
 294                 case 0:
 295                         event->set_secondary_cpu_clock(maincpu, MAINCLOCK_NORMAL);
 296                         break;
 297                 case 1:
 298                         event->set_secondary_cpu_clock(maincpu, MAINCLOCK_SLOW);
 299                         break;
 300         }
 301 #endif
 302
 303         for(DEVICE* device = first_device; device; device = device->next_device) {
 304                 device->update_config();
 305         }
 306         //update_dipswitch();
 307 }
 308
 309 void VM::reset()
 310 {
 311         // reset all devices
 312         for(DEVICE* device = first_device; device; device = device->next_device) {
 313                 device->reset();
 314         }
 315         opn[0]->SetReg(0x2e, 0);        // set prescaler
 316         opn[1]->SetReg(0x2e, 0);        // set prescaler
 317         opn[2]->SetReg(0x2e, 0);        // set prescaler
 318
 319         // Init OPN/PSG.
 320         // Parameters from XM7.
 321         opn[0]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 322         opn[1]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 323         opn[2]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 324
 325 #if !defined(_FM77AV_VARIANTS)
 326         psg->SetReg(0x27, 0); // stop timer
 327         psg->SetReg(0x2e, 0);   // set prescaler
 328         psg->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 329 #endif
 330 }
 331
 332 void VM::special_reset()
 333 {
 334         // BREAK + RESET
 335         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 336         mainio->reset();
 337         mainmem->reset();
 338
 339         display->reset();
 340         subcpu->reset();
 341         maincpu->reset();
 342         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 343         event->register_event(mainio, EVENT_UP_BREAK, 10000.0 * 1000.0, false, NULL);
 344 }
 345
 346 void VM::run()
 347 {
 348         event->drive();
 349 }
 350
 351 double VM::frame_rate()
 352 {
 353         return event->frame_rate();
 354 }
 355
 356 // ----------------------------------------------------------------------------
 357 // debugger
 358 // ----------------------------------------------------------------------------
 359
 360 #ifdef USE_DEBUGGER
 361 DEVICE *VM::get_cpu(int index)
 362 {
 363         if(index == 0) {
 364                 return maincpu;
 365         } else if(index == 1) {
 366                 return subcpu;
 367         }
 368 #if defined(_WITH_Z80)
 369         else if(index == 2) {
 370                 return z80cpu;
 371         }
 372 #endif
 373         return NULL;
 374 }
 375 #endif
 376
 377 // ----------------------------------------------------------------------------
 378 // draw screen
 379 // ----------------------------------------------------------------------------
 380
 381 void VM::draw_screen()
 382 {
 383         display->draw_screen();
 384 }
 385
 386 int VM::access_lamp()
 387 {
 388         uint32 status = fdc->read_signal(0);
 389         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 390 }
 391
 392 void VM::initialize_sound(int rate, int samples)
 393 {
 394         // init sound manager
 395         event->initialize_sound(rate, samples);
 396         // init sound gen
 397         opn[0]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 398         opn[1]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 399         opn[2]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 400 #if !defined(_FM77AV_VARIANTS)
 401         psg->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 402 #endif
 403         pcm1bit->init(rate, 2000);
 404         //drec->init_pcm(rate, 0);
 405 }
 406
 407 uint16* VM::create_sound(int* extra_frames)
 408 {
 409         uint16* p = event->create_sound(extra_frames);
 410         return p;
 411 }
 412
 413 int VM::sound_buffer_ptr()
 414 {
 415         int pos = event->sound_buffer_ptr();
 416         return pos;
 417 }
 418
 419 // ----------------------------------------------------------------------------
 420 // notify key
 421 // ----------------------------------------------------------------------------
 422
 423 void VM::key_down(int code, bool repeat)
 424 {
 425         if(!repeat) {
 426                 keyboard->key_down(code);
 427         }
 428 }
 429
 430 void VM::key_up(int code)
 431 {
 432         keyboard->key_up(code);
 433 }
 434
 435 // ----------------------------------------------------------------------------
 436 // user interface
 437 // ----------------------------------------------------------------------------
 438
 439 void VM::open_disk(int drv, _TCHAR* file_path, int bank)
 440 {
 441         fdc->open_disk(drv, file_path, bank);
 442 }
 443
 444 void VM::close_disk(int drv)
 445 {
 446         fdc->close_disk(drv);
 447 }
 448
 449 bool VM::disk_inserted(int drv)
 450 {
 451         return fdc->disk_inserted(drv);
 452 }
 453
 454 #if defined(USE_DISK_WRITE_PROTECT)
 455 void VM::write_protect_fd(int drv, bool flag)
 456 {
 457         fdc->write_protect_fd(drv, flag);
 458 }
 459
 460 bool VM::is_write_protect_fd(int drv)
 461 {
 462         return fdc->is_write_protect_fd(drv);
 463 }
 464 #endif
 465
 466 void VM::play_tape(_TCHAR* file_path)
 467 {
 468         bool value = drec->play_tape(file_path);
 469 }
 470
 471 void VM::rec_tape(_TCHAR* file_path)
 472 {
 473         bool value = drec->rec_tape(file_path);
 474 }
 475
 476 void VM::close_tape()
 477 {
 478         drec->close_tape();
 479 }
 480
 481 bool VM::tape_inserted()
 482 {
 483         return drec->tape_inserted();
 484 }
 485
 486 #if defined(USE_TAPE_PTR)
 487 int VM::get_tape_ptr(void)
 488 {
 489         return drec->get_tape_ptr();
 490 }
 491 #endif
 492
 493 bool VM::now_skip()
 494 {
 495         return event->now_skip();
 496 }
 497
 498 void VM::update_dipswitch()
 499 {
 500         // bit0         0=High 1=Standard
 501         // bit2         0=5"2D 1=5"2HD
 502   //    io->set_iovalue_single_r(0x1ff0, (config.monitor_type & 1) | ((config.drive_type & 1) << 2));
 503 }
 504
 505 void VM::set_cpu_clock(DEVICE *cpu, uint32 clocks) {
 506         event->set_secondary_cpu_clock(cpu, clocks);
 507 }
 508
 509 #define STATE_VERSION   1
 510