source/src/vm/fm7/fm7.cpp

   1 /*
   2  * FM7 -> VM
   3  * (C) 2015 K.Ohta <whatisthis.sowhat _at_ gmail.com>
   4  * History:
   5  *   Feb 27, 2015 : Initial
   6  */
   7
   8 #include "fm7.h"
   9 #include "../../emu.h"
  10 #include "../../config.h"
  11 #include "../device.h"
  12 #include "../event.h"
  13
  14 #include "../datarec.h"
  15 #include "../disk.h"
  16
  17 #include "../mc6809.h"
  18 #include "../z80.h"
  19 #include "../ym2203.h"
  20 #include "../mb8877.h"
  21
  22 #include "./fm7_mainio.h"
  23 #include "./fm7_mainmem.h"
  24 #include "./fm7_display.h"
  25 #include "./fm7_keyboard.h"
  26
  27 #include "./kanjirom.h"
  28
  29 VM::VM(EMU* parent_emu): emu(parent_emu)
  30 {
  31
  32         first_device = last_device = NULL;
  33         connect_opn = false;
  34         connect_whg = false;
  35         connect_thg = false;
  36         opn[0] = opn[1] = opn[2] = psg = NULL;
  37
  38         dummy = new DEVICE(this, emu);  // must be 1st device
  39         event = new EVENT(this, emu);   // must be 2nd device
  40
  41         dummycpu = new DEVICE(this, emu);
  42         maincpu = new MC6809(this, emu);
  43         subcpu = new MC6809(this, emu);
  44 #ifdef WITH_Z80
  45         z80cpu = new Z80(this, emu);
  46 #endif
  47         // basic devices
  48         mainmem = new FM7_MAINMEM(this, emu);
  49         mainio  = new FM7_MAINIO(this, emu);
  50
  51         display = new DISPLAY(this, emu);
  52         keyboard = new KEYBOARD(this, emu);
  53
  54         // I/Os
  55         drec = new DATAREC(this, emu);
  56         pcm1bit = new PCM1BIT(this, emu);
  57         fdc  = new MB8877(this, emu);
  58
  59         switch(config.sound_device_type) {
  60                 case 0:
  61                         break;
  62                 case 1:
  63                         connect_opn = true;
  64                         break;
  65                 case 2:
  66                         connect_whg = true;
  67                         break;
  68                 case 3:
  69                         connect_whg = true;
  70                         connect_opn = true;
  71                         break;
  72                 case 4:
  73                         connect_thg = true;
  74                         break;
  75                 case 5:
  76                         connect_thg = true;
  77                         connect_opn = true;
  78                         break;
  79                 case 6:
  80                         connect_thg = true;
  81                         connect_whg = true;
  82                         break;
  83                 case 7:
  84                         connect_thg = true;
  85                         connect_whg = true;
  86                         connect_opn = true;
  87                         break;
  88         }
  89
  90         if(config.sound_device_type != 0) {
  91                 if(connect_opn) opn[0] = new YM2203(this, emu); // OPN
  92                 if(connect_whg) opn[1] = new YM2203(this, emu); // WHG
  93                 if(connect_thg) opn[2] = new YM2203(this, emu); // THG
  94         }
  95
  96 #if !defined(_FM77AV_VARIANTS)
  97         psg = new YM2203(this, emu);
  98 #endif
  99         kanjiclass1 = new KANJIROM(this, emu, false);
 100 #ifdef CAPABLE_KANJI_CLASS2
 101         kanjiclass2 = new KANJIROM(this, emu, true);
 102 #endif
 103         connect_bus();
 104         initialize();
 105 }
 106
 107 VM::~VM()
 108 {
 109         // delete all devices
 110         for(DEVICE* device = first_device; device;) {
 111                 DEVICE *next_device = device->next_device;
 112                 device->release();
 113                 delete device;
 114                 device = next_device;
 115         }
 116 }
 117
 118 DEVICE* VM::get_device(int id)
 119 {
 120         for(DEVICE* device = first_device; device; device = device->next_device) {
 121                 if(device->this_device_id == id) {
 122                         return device;
 123                 }
 124         }
 125         return NULL;
 126 }
 127
 128
 129 void VM::initialize(void)
 130 {
 131 #if defined(_FM8) || defined(_FM7)
 132         cycle_steal = false;
 133 #else
 134         cycle_steal = true;
 135 #endif
 136         clock_low = false;
 137
 138 }
 139
 140
 141 void VM::connect_bus(void)
 142 {
 143         int i;
 144
 145         /*
 146          * CLASS CONSTRUCTION
 147          *
 148          * VM
 149          *  |-> MAINCPU -> MAINMEM -> MAINIO -> MAIN DEVICES
 150          *  |             |        |
 151          *  | -> SUBCPU  -> SUBMEM  -> SUBIO -> SUB DEVICES
 152          *  | -> DISPLAY
 153          *  | -> KEYBOARD
 154          *
 155          *  MAINMEM can access SUBMEM/IO, when SUBCPU is halted.
 156          *  MAINMEM and SUBMEM can access DISPLAY and KEYBOARD with exclusive.
 157          *  MAINCPU can access MAINMEM.
 158          *  SUBCPU  can access SUBMEM.
 159          *  DISPLAY : R/W from MAINCPU and SUBCPU.
 160          *  KEYBOARD : R/W
 161          *
 162          */
 163         event->set_frames_per_sec(60.00);
 164         event->set_lines_per_frame(400);
 165         event->set_context_cpu(dummycpu, 8000000);
 166 #if defined(_FM8)
 167         event->set_context_cpu(maincpu, MAINCLOCK_SLOW);
 168         event->set_context_cpu(subcpu,  SUBCLOCK_SLOW);
 169 #else
 170         if(config.cpu_type == 0) {
 171                 // 2MHz
 172                 event->set_context_cpu(maincpu, MAINCLOCK_NORMAL);
 173                 event->set_context_cpu(subcpu,  SUBCLOCK_NORMAL);
 174         } else {
 175                 // 1.2MHz
 176                 event->set_context_cpu(maincpu, MAINCLOCK_SLOW);
 177                 event->set_context_cpu(subcpu,  SUBCLOCK_SLOW);
 178         }
 179 #endif
 180 #ifdef WITH_Z80
 181         event->set_context_cpu(z80cpu,  4000000);
 182         z80cpu->write_signal(SIG_CPU_BUSREQ, 1, 1);
 183 #endif
 184         mainio->set_context_maincpu(maincpu);
 185         mainio->set_context_subcpu(subcpu);
 186
 187         mainio->set_context_display(display);
 188         mainio->set_context_kanjirom_class1(kanjiclass1);
 189         mainio->set_context_mainmem(mainmem);
 190
 191 #if defined(_FM77AV_VARIANTS)
 192         mainio->set_context_kanjirom_class2(kanjiclass2);
 193 #endif
 194
 195         keyboard->set_context_break_line(mainio, FM7_MAINIO_PUSH_BREAK, 0xffffffff);
 196         keyboard->set_context_mainio(mainio);
 197         keyboard->set_context_display(display);
 198
 199         drec->set_context_out(mainio, FM7_MAINIO_CMT_RECV, 0xffffffff);
 200         //drec->set_context_remote(mainio, FM7_MAINIO_CMT_REMOTE, 0xffffffff);
 201         mainio->set_context_datarec(drec);
 202
 203         display->set_context_mainio(mainio);
 204         display->set_context_subcpu(subcpu);
 205         display->set_context_keyboard(keyboard);
 206         display->set_context_kanjiclass1(kanjiclass1);
 207 #if defined(_FM77AV40) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 208         display->set_context_kanjiclass2(kanjiclass2);
 209 #endif
 210         // Palette, VSYNC, HSYNC, Multi-page, display mode.
 211         mainio->set_context_display(display);
 212
 213         //FDC
 214         mainio->set_context_fdc(fdc);
 215         fdc->set_context_irq(mainio, FM7_MAINIO_FDC_IRQ, 0x1);
 216         fdc->set_context_drq(mainio, FM7_MAINIO_FDC_DRQ, 0x1);
 217         // SOUND
 218         mainio->set_context_beep(pcm1bit);
 219         event->set_context_sound(pcm1bit);
 220
 221         if(connect_opn) {
 222                 opn[0]->set_context_irq(mainio, FM7_MAINIO_OPN_IRQ, 0xffffffff);
 223                 opn[0]->set_context_port_a(mainio, FM7_MAINIO_OPNPORTA_CHANGED, 0xff, 0);
 224                 opn[0]->set_context_port_b(mainio, FM7_MAINIO_OPNPORTB_CHANGED, 0xff, 0);
 225                 mainio->set_context_opn(opn[0], 0);
 226         }
 227         if(connect_whg) {
 228                 opn[1]->set_context_irq(mainio, FM7_MAINIO_WHG_IRQ, 0xffffffff);
 229                 mainio->set_context_opn(opn[1], 1);
 230         }
 231
 232         if(connect_thg) {
 233                 opn[2]->set_context_irq(mainio, FM7_MAINIO_THG_IRQ, 0xffffffff);
 234                 mainio->set_context_opn(opn[2], 2);
 235         }
 236
 237 #if !defined(_FM77AV_VARIANTS)
 238         if(psg != NULL) {
 239                 mainio->set_context_psg(psg);
 240                 event->set_context_sound(psg);
 241         }
 242 #endif
 243         if(connect_opn) {
 244                 event->set_context_sound(opn[0]);
 245         }
 246         if(connect_whg) {
 247                 event->set_context_sound(opn[1]);
 248         }
 249         if(connect_thg) {
 250                 event->set_context_sound(opn[2]);
 251         }
 252 #ifdef DATAREC_SOUND
 253         event->set_context_sound(drec);
 254 #endif
 255         mainmem->set_context_mainio(mainio);
 256         mainmem->set_context_display(display);
 257
 258         maincpu->set_context_mem(mainmem);
 259         subcpu->set_context_mem(display);
 260
 261         for(DEVICE* device = first_device; device; device = device->next_device) {
 262                 device->initialize();
 263         }
 264         maincpu->write_signal(SIG_CPU_BUSREQ, 0, 1);
 265         subcpu->write_signal(SIG_CPU_BUSREQ, 0, 1);
 266
 267         for(int i = 0; i < 2; i++) {
 268 #if defined(_FM77AV20) || defined(_FM77AV40SX) || defined(_FM77AV40EX) || defined(_FM77AV40SX)
 269                 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
 270 #else
 271                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 272 #endif
 273 //              fdc->set_drive_rpm(i, 300);
 274 //              fdc->set_drive_mfm(i, true);
 275         }
 276 #if defined(_FM77) || defined(_FM77L4)
 277         for(int i = 2; i < 4; i++) {
 278                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 279 //              fdc->set_drive_rpm(i, 300);
 280 //              fdc->set_drive_mfm(i, true);
 281         }
 282 #endif
 283
 284 }
 285
 286 void VM::update_config()
 287 {
 288 #if !defined(_FM8)
 289         switch(config.cpu_type){
 290                 case 0:
 291                         event->set_cpu_clock(maincpu, MAINCLOCK_NORMAL);
 292                         event->set_cpu_clock(subcpu,  SUBCLOCK_NORMAL);
 293                         break;
 294                 case 1:
 295                         event->set_cpu_clock(maincpu, MAINCLOCK_SLOW);
 296                         event->set_cpu_clock(subcpu,  SUBCLOCK_SLOW);
 297                         break;
 298         }
 299 #endif
 300         for(DEVICE* device = first_device; device; device = device->next_device) {
 301                 device->update_config();
 302         }
 303         //update_dipswitch();
 304 }
 305
 306 void VM::reset()
 307 {
 308         // reset all devices
 309         for(DEVICE* device = first_device; device; device = device->next_device) {
 310                 device->reset();
 311         }
 312         psg->SetReg(0x2e, 0);   // set prescaler
 313 }
 314
 315 void VM::special_reset()
 316 {
 317         // BREAK + RESET
 318         mainio->write_signal(FM7_MAINIO_PUSH_BREAK, 1, 1);
 319         event->register_event(mainio, EVENT_UP_BREAK, 2000.0 * 1000.0, false, NULL);
 320         mainio->reset();
 321         display->reset();
 322 }
 323
 324 void VM::run()
 325 {
 326         event->drive();
 327 }
 328
 329 double VM::frame_rate()
 330 {
 331         return event->frame_rate();
 332 }
 333
 334 // ----------------------------------------------------------------------------
 335 // debugger
 336 // ----------------------------------------------------------------------------
 337
 338 #ifdef USE_DEBUGGER
 339 DEVICE *VM::get_cpu(int index)
 340 {
 341         if(index == 0) {
 342                 return maincpu;
 343         } else if(index == 1) {
 344                 return subcpu;
 345         }
 346 #if defined(_WITH_Z80)
 347         else if(index == 2) {
 348                 return z80cpu;
 349         }
 350 #endif
 351         return NULL;
 352 }
 353 #endif
 354
 355 // ----------------------------------------------------------------------------
 356 // draw screen
 357 // ----------------------------------------------------------------------------
 358
 359 void VM::draw_screen()
 360 {
 361         display->draw_screen();
 362 }
 363
 364 int VM::access_lamp()
 365 {
 366         uint32 status = fdc->read_signal(0);
 367         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 368 }
 369
 370 void VM::initialize_sound(int rate, int samples)
 371 {
 372         // init sound manager
 373         event->initialize_sound(rate, samples);
 374         // init sound gen
 375         if(connect_opn) opn[0]->init(rate, 1228800, samples, 0, 0);
 376         if(connect_whg) opn[1]->init(rate, 1228800, samples, 0, 0);
 377         if(connect_thg) opn[2]->init(rate, 1228800, samples, 0, 0);
 378 #if !defined(_FM77AV_VARIANTS)
 379         psg->init(rate, 1228800, samples, 0, 0);
 380 #endif
 381         pcm1bit->init(rate, 8000);
 382         //drec->init_pcm(rate, 0);
 383 }
 384
 385 uint16* VM::create_sound(int* extra_frames)
 386 {
 387         uint16* p = event->create_sound(extra_frames);
 388         return p;
 389 }
 390
 391 int VM::sound_buffer_ptr()
 392 {
 393         int pos = event->sound_buffer_ptr();
 394         return pos;
 395 }
 396
 397 // ----------------------------------------------------------------------------
 398 // notify key
 399 // ----------------------------------------------------------------------------
 400
 401 void VM::key_down(int code, bool repeat)
 402 {
 403         if(!repeat) {
 404                 keyboard->key_down(code);
 405         }
 406 }
 407
 408 void VM::key_up(int code)
 409 {
 410         keyboard->key_up(code);
 411 }
 412
 413 // ----------------------------------------------------------------------------
 414 // user interface
 415 // ----------------------------------------------------------------------------
 416
 417 void VM::open_disk(int drv, _TCHAR* file_path, int bank)
 418 {
 419         fdc->open_disk(drv, file_path, bank);
 420 }
 421
 422 void VM::close_disk(int drv)
 423 {
 424         fdc->close_disk(drv);
 425 }
 426
 427 bool VM::disk_inserted(int drv)
 428 {
 429         return fdc->disk_inserted(drv);
 430 }
 431
 432 void VM::write_protect_fd(int drv, bool flag)
 433 {
 434         fdc->write_protect_fd(drv, flag);
 435 }
 436
 437 bool VM::is_write_protect_fd(int drv)
 438 {
 439         return fdc->is_write_protect_fd(drv);
 440 }
 441
 442 void VM::play_tape(_TCHAR* file_path)
 443 {
 444         bool value = drec->play_tape(file_path);
 445 }
 446
 447 void VM::rec_tape(_TCHAR* file_path)
 448 {
 449         bool value = drec->rec_tape(file_path);
 450 }
 451
 452 void VM::close_tape()
 453 {
 454         drec->close_tape();
 455 }
 456
 457 bool VM::tape_inserted()
 458 {
 459         return drec->tape_inserted();
 460 }
 461
 462 int VM::get_tape_ptr(void)
 463 {
 464         return drec->get_tape_ptr();
 465 }
 466
 467 bool VM::now_skip()
 468 {
 469         return event->now_skip();
 470 }
 471
 472 void VM::update_dipswitch()
 473 {
 474         // bit0         0=High 1=Standard
 475         // bit2         0=5"2D 1=5"2HD
 476   //    io->set_iovalue_single_r(0x1ff0, (config.monitor_type & 1) | ((config.drive_type & 1) << 2));
 477 }
 478
 479 void VM::set_cpu_clock(DEVICE *cpu, uint32 clocks) {
 480         event->set_cpu_clock(cpu, clocks);
 481 }
 482
 483 #define STATE_VERSION   1
 484