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 #include "./joystick.h"
  39
  40 #include "./kanjirom.h"
  41
  42 VM::VM(EMU* parent_emu): emu(parent_emu)
  43 {
  44
  45         first_device = last_device = NULL;
  46         connect_opn = false;
  47         connect_whg = false;
  48         connect_thg = false;
  49         opn[0] = opn[1] = opn[2] = psg = NULL;
  50
  51         dummy = new DEVICE(this, emu);  // must be 1st device
  52         event = new EVENT(this, emu);   // must be 2nd device
  53
  54         dummycpu = new DEVICE(this, emu);
  55         kanjiclass1 = new KANJIROM(this, emu, false);
  56 #ifdef CAPABLE_KANJI_CLASS2
  57         kanjiclass2 = new KANJIROM(this, emu, true);
  58 #endif
  59         joystick  = new JOYSTICK(this, emu);
  60
  61         // I/Os
  62         drec = new DATAREC(this, emu);
  63         pcm1bit = new PCM1BIT(this, emu);
  64 //      beep = new BEEP(this, emu);
  65         fdc  = new MB8877(this, emu);
  66
  67         opn[0] = new YM2203(this, emu); // OPN
  68         opn[1] = new YM2203(this, emu); // WHG
  69         opn[2] = new YM2203(this, emu); // THG
  70 #if !defined(_FM77AV_VARIANTS)
  71         psg = new YM2203(this, emu);
  72 #endif
  73         display = new DISPLAY(this, emu);
  74         mainio  = new FM7_MAINIO(this, emu);
  75         mainmem = new FM7_MAINMEM(this, emu);
  76         keyboard = new KEYBOARD(this, emu);
  77 #if defined(_FM77AV_VARIANTS)
  78         alu = new MB61VH010(this, emu);
  79 #endif
  80
  81         // basic devices
  82         subcpu = new MC6809(this, emu);
  83 #ifdef WITH_Z80
  84         z80cpu = new Z80(this, emu);
  85 #endif
  86         maincpu = new MC6809(this, emu);
  87         connect_bus();
  88         initialize();
  89 }
  90
  91 VM::~VM()
  92 {
  93         // delete all devices
  94         for(DEVICE* device = first_device; device;) {
  95                 DEVICE *next_device = device->next_device;
  96                 device->release();
  97                 delete device;
  98                 device = next_device;
  99         }
 100 }
 101
 102 DEVICE* VM::get_device(int id)
 103 {
 104         for(DEVICE* device = first_device; device; device = device->next_device) {
 105                 if(device->this_device_id == id) {
 106                         return device;
 107                 }
 108         }
 109         return NULL;
 110 }
 111
 112
 113 void VM::initialize(void)
 114 {
 115 #if defined(_FM8) || defined(_FM7)
 116         cycle_steal = false;
 117 #else
 118         cycle_steal = true;
 119 #endif
 120         clock_low = false;
 121
 122 }
 123
 124
 125 void VM::connect_bus(void)
 126 {
 127         uint32 mainclock;
 128         uint32 subclock;
 129         int i;
 130
 131         /*
 132          * CLASS CONSTRUCTION
 133          *
 134          * VM
 135          *  |-> MAINCPU -> MAINMEM -> MAINIO -> MAIN DEVICES
 136          *  |             |        |
 137          *  | -> SUBCPU  -> SUBMEM  -> SUBIO -> SUB DEVICES
 138          *  | -> DISPLAY
 139          *  | -> KEYBOARD
 140          *
 141          *  MAINMEM can access SUBMEM/IO, when SUBCPU is halted.
 142          *  MAINMEM and SUBMEM can access DISPLAY and KEYBOARD with exclusive.
 143          *  MAINCPU can access MAINMEM.
 144          *  SUBCPU  can access SUBMEM.
 145          *  DISPLAY : R/W from MAINCPU and SUBCPU.
 146          *  KEYBOARD : R/W
 147          *
 148          */
 149         event->set_frames_per_sec(60.00);
 150         event->set_lines_per_frame(400);
 151 #if defined(_FM77AV40) || defined(_FM77AV20)
 152         event->set_context_cpu(dummycpu, MAINCLOCK_FAST_MMR * 2);
 153 #else
 154         event->set_context_cpu(dummycpu, SUBCLOCK_NORMAL * 2);
 155 #endif
 156
 157 #if defined(_FM8)
 158         mainclock = MAINCLOCK_SLOW;
 159         subclock = SUBCLOCK_SLOW;
 160 #else
 161         if(config.cpu_type == 0) {
 162                 // 2MHz
 163                 subclock = SUBCLOCK_NORMAL;
 164                 mainclock = MAINCLOCK_NORMAL;
 165         } else {
 166                 // 1.2MHz
 167                 mainclock = MAINCLOCK_SLOW;
 168                 subclock = SUBCLOCK_SLOW;
 169         }
 170 #endif
 171 #if defined(_FM77AV40) || defined(_FM77AV20)
 172         event->set_context_cpu(maincpu, MAINCLOCK_FAST_MMR);
 173 #else
 174         event->set_context_cpu(maincpu, MAINCLOCK_NORMAL);
 175 #endif
 176         event->set_context_cpu(subcpu,  SUBCLOCK_NORMAL);
 177
 178 #ifdef WITH_Z80
 179         event->set_context_cpu(z80cpu,  4000000);
 180         z80cpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 181 #endif
 182
 183         event->set_context_sound(pcm1bit);
 184 #if !defined(_FM77AV_VARIANTS)
 185         mainio->set_context_psg(psg);
 186         event->set_context_sound(psg);
 187 #endif
 188         event->set_context_sound(opn[0]);
 189         event->set_context_sound(opn[1]);
 190         event->set_context_sound(opn[2]);
 191         event->set_context_sound(drec);
 192         //event->register_vline_event(display);
 193         event->register_frame_event(display);
 194         //event->register_vline_event(mainio);
 195
 196         mainio->set_context_maincpu(maincpu);
 197         mainio->set_context_subcpu(subcpu);
 198
 199         mainio->set_context_display(display);
 200         mainio->set_context_kanjirom_class1(kanjiclass1);
 201         mainio->set_context_mainmem(mainmem);
 202         mainio->set_context_keyboard(keyboard);
 203
 204 #if defined(CAPABLE_KANJI_CLASS2)
 205         mainio->set_context_kanjirom_class2(kanjiclass2);
 206 #endif
 207
 208         keyboard->set_context_break_line(mainio, FM7_MAINIO_PUSH_BREAK, 0xffffffff);
 209         keyboard->set_context_int_line(mainio, FM7_MAINIO_KEYBOARDIRQ, 0xffffffff);
 210         keyboard->set_context_int_line(display, SIG_FM7_SUB_KEY_FIRQ, 0xffffffff);
 211
 212         //keyboard->set_context_rxrdy(keyboard, SIG_FM7KEY_RXRDY, 0x01);
 213         keyboard->set_context_rxrdy(display, SIG_FM7KEY_RXRDY, 0x01);
 214
 215         //keyboard->set_context_key_ack(keyboard, SIG_FM7KEY_ACK, 0x01);
 216         keyboard->set_context_key_ack(display, SIG_FM7KEY_ACK, 0x01);
 217
 218         drec->set_context_out(mainio, FM7_MAINIO_CMT_RECV, 0xffffffff);
 219         //drec->set_context_remote(mainio, FM7_MAINIO_CMT_REMOTE, 0xffffffff);
 220         mainio->set_context_datarec(drec);
 221         mainmem->set_context_mainio(mainio);
 222         mainmem->set_context_display(display);
 223         mainmem->set_context_maincpu(maincpu);
 224
 225         display->set_context_mainio(mainio);
 226         display->set_context_subcpu(subcpu);
 227         display->set_context_keyboard(keyboard);
 228         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 229         subcpu->set_context_bus_halt(mainmem, SIG_FM7_SUB_HALT, 0xffffffff);
 230
 231         display->set_context_kanjiclass1(kanjiclass1);
 232 #if defined(CAPABLE_KANJI_CLASS2)
 233         display->set_context_kanjiclass2(kanjiclass2);
 234 #endif
 235 #if defined(_FM77AV_VARIANTS)
 236         display->set_context_alu(alu);
 237         alu->set_context_memory(display);
 238 #endif
 239         // Palette, VSYNC, HSYNC, Multi-page, display mode.
 240         mainio->set_context_display(display);
 241
 242         //FDC
 243         mainio->set_context_fdc(fdc);
 244         fdc->set_context_irq(mainio, FM7_MAINIO_FDC_IRQ, 0x1);
 245         fdc->set_context_drq(mainio, FM7_MAINIO_FDC_DRQ, 0x1);
 246         // SOUND
 247         mainio->set_context_beep(pcm1bit);
 248         //mainio->set_context_beep(beep);
 249
 250         opn[0]->set_context_irq(mainio, FM7_MAINIO_OPN_IRQ, 0xffffffff);
 251         mainio->set_context_opn(opn[0], 0);
 252         //joystick->set_context_opn(opn[0]);
 253         mainio->set_context_joystick(joystick);
 254         opn[0]->set_context_port_b(joystick, FM7_JOYSTICK_MOUSE_STROBE, 0xff, 0);
 255
 256         opn[1]->set_context_irq(mainio, FM7_MAINIO_WHG_IRQ, 0xffffffff);
 257         mainio->set_context_opn(opn[1], 1);
 258         opn[2]->set_context_irq(mainio, FM7_MAINIO_THG_IRQ, 0xffffffff);
 259         mainio->set_context_opn(opn[2], 2);
 260
 261         subcpu->set_context_bus_halt(display, SIG_FM7_SUB_HALT, 0xffffffff);
 262         subcpu->set_context_bus_clr(display, SIG_FM7_SUB_USE_CLR, 0x0000000f);
 263
 264         maincpu->set_context_mem(mainmem);
 265         subcpu->set_context_mem(display);
 266 #ifdef USE_DEBUGGER
 267         maincpu->set_context_debugger(new DEBUGGER(this, emu));
 268         subcpu->set_context_debugger(new DEBUGGER(this, emu));
 269 #endif
 270         event->register_frame_event(joystick);
 271         for(DEVICE* device = first_device; device; device = device->next_device) {
 272                 device->initialize();
 273         }
 274         //maincpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 275         //subcpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 276
 277         for(int i = 0; i < 2; i++) {
 278 #if defined(_FM77AV20) || defined(_FM77AV40SX) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 279                 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 280 #else
 281                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 282 #endif
 283                 fdc->set_drive_rpm(i, 360);
 284                 fdc->set_drive_mfm(i, true);
 285         }
 286 #if defined(_FM77) || defined(_FM77L4)
 287         for(int i = 2; i < 4; i++) {
 288                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 289 //              fdc->set_drive_rpm(i, 300);
 290 //              fdc->set_drive_mfm(i, true);
 291         }
 292 #endif
 293
 294 }
 295
 296 void VM::update_config()
 297 {
 298 #if !defined(_FM8)
 299         switch(config.cpu_type){
 300                 case 0:
 301                         event->set_secondary_cpu_clock(maincpu, MAINCLOCK_NORMAL);
 302                         break;
 303                 case 1:
 304                         event->set_secondary_cpu_clock(maincpu, MAINCLOCK_SLOW);
 305                         break;
 306         }
 307 #endif
 308
 309         for(DEVICE* device = first_device; device; device = device->next_device) {
 310                 device->update_config();
 311         }
 312         //update_dipswitch();
 313 }
 314
 315 void VM::reset()
 316 {
 317         // reset all devices
 318         for(DEVICE* device = first_device; device; device = device->next_device) {
 319                 device->reset();
 320         }
 321         opn[0]->SetReg(0x2e, 0);        // set prescaler
 322         opn[1]->SetReg(0x2e, 0);        // set prescaler
 323         opn[2]->SetReg(0x2e, 0);        // set prescaler
 324
 325         // Init OPN/PSG.
 326         // Parameters from XM7.
 327         opn[0]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 328         opn[1]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 329         opn[2]->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 330
 331 #if !defined(_FM77AV_VARIANTS)
 332         psg->SetReg(0x27, 0); // stop timer
 333         psg->SetReg(0x2e, 0);   // set prescaler
 334         psg->write_signal(SIG_YM2203_MUTE, 0x00, 0x01); // Okay?
 335 #endif
 336 }
 337
 338 void VM::special_reset()
 339 {
 340         // BREAK + RESET
 341         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 342         mainio->reset();
 343         mainmem->reset();
 344
 345 #if defined(FM77AV_VARIANTS)
 346         mainio->write_signal(FM7_MAINIO_HOT_RESET, 1, 1);
 347 #endif
 348         display->reset();
 349         maincpu->reset();
 350         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 351         event->register_event(mainio, EVENT_UP_BREAK, 10000.0 * 1000.0, false, NULL);
 352 }
 353
 354 void VM::run()
 355 {
 356         event->drive();
 357 }
 358
 359 double VM::frame_rate()
 360 {
 361         return event->frame_rate();
 362 }
 363
 364 // ----------------------------------------------------------------------------
 365 // debugger
 366 // ----------------------------------------------------------------------------
 367
 368 #ifdef USE_DEBUGGER
 369 DEVICE *VM::get_cpu(int index)
 370 {
 371         if(index == 0) {
 372                 return maincpu;
 373         } else if(index == 1) {
 374                 return subcpu;
 375         }
 376 #if defined(_WITH_Z80)
 377         else if(index == 2) {
 378                 return z80cpu;
 379         }
 380 #endif
 381         return NULL;
 382 }
 383 #endif
 384
 385 // ----------------------------------------------------------------------------
 386 // draw screen
 387 // ----------------------------------------------------------------------------
 388
 389 void VM::draw_screen()
 390 {
 391         display->draw_screen();
 392 }
 393
 394 int VM::access_lamp()
 395 {
 396         uint32 status = fdc->read_signal(0);
 397         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 398 }
 399
 400 void VM::initialize_sound(int rate, int samples)
 401 {
 402         // init sound manager
 403         event->initialize_sound(rate, samples);
 404         // init sound gen
 405         opn[0]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 406         opn[1]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 407         opn[2]->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 408 #if !defined(_FM77AV_VARIANTS)
 409         psg->init(rate, (int)(4.9152 * 1000.0 * 1000.0 / 4.0), samples, 0, 0);
 410 #endif
 411         pcm1bit->init(rate, 2000);
 412         //drec->init_pcm(rate, 0);
 413 }
 414
 415 uint16* VM::create_sound(int* extra_frames)
 416 {
 417         uint16* p = event->create_sound(extra_frames);
 418         return p;
 419 }
 420
 421 int VM::sound_buffer_ptr()
 422 {
 423         int pos = event->sound_buffer_ptr();
 424         return pos;
 425 }
 426
 427 // ----------------------------------------------------------------------------
 428 // notify key
 429 // ----------------------------------------------------------------------------
 430
 431 void VM::key_down(int code, bool repeat)
 432 {
 433         if(!repeat) {
 434                 keyboard->key_down(code);
 435         }
 436 }
 437
 438 void VM::key_up(int code)
 439 {
 440         keyboard->key_up(code);
 441 }
 442
 443 // ----------------------------------------------------------------------------
 444 // user interface
 445 // ----------------------------------------------------------------------------
 446
 447 void VM::open_disk(int drv, _TCHAR* file_path, int bank)
 448 {
 449         fdc->open_disk(drv, file_path, bank);
 450 }
 451
 452 void VM::close_disk(int drv)
 453 {
 454         fdc->close_disk(drv);
 455 }
 456
 457 bool VM::disk_inserted(int drv)
 458 {
 459         return fdc->disk_inserted(drv);
 460 }
 461
 462 #if defined(USE_DISK_WRITE_PROTECT)
 463 void VM::write_protect_fd(int drv, bool flag)
 464 {
 465         fdc->write_protect_fd(drv, flag);
 466 }
 467
 468 bool VM::is_write_protect_fd(int drv)
 469 {
 470         return fdc->is_write_protect_fd(drv);
 471 }
 472 #endif
 473
 474 void VM::play_tape(_TCHAR* file_path)
 475 {
 476         bool value = drec->play_tape(file_path);
 477 }
 478
 479 void VM::rec_tape(_TCHAR* file_path)
 480 {
 481         bool value = drec->rec_tape(file_path);
 482 }
 483
 484 void VM::close_tape()
 485 {
 486         drec->close_tape();
 487 }
 488
 489 bool VM::tape_inserted()
 490 {
 491         return drec->tape_inserted();
 492 }
 493
 494 #if defined(USE_TAPE_PTR)
 495 int VM::get_tape_ptr(void)
 496 {
 497         return drec->get_tape_ptr();
 498 }
 499 #endif
 500
 501 bool VM::now_skip()
 502 {
 503         return event->now_skip();
 504 }
 505
 506 void VM::update_dipswitch()
 507 {
 508         // bit0         0=High 1=Standard
 509         // bit2         0=5"2D 1=5"2HD
 510   //    io->set_iovalue_single_r(0x1ff0, (config.monitor_type & 1) | ((config.drive_type & 1) << 2));
 511 }
 512
 513 void VM::set_cpu_clock(DEVICE *cpu, uint32 clocks) {
 514         event->set_secondary_cpu_clock(cpu, clocks);
 515 }
 516
 517 #define STATE_VERSION   1
 518