source/src/vm/fm16beta/fm16beta.cpp

   1 /*
   2         FUJITSU FM16beta Emulator 'eFM16beta'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2017.12.28-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "fm16beta.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../disk.h"
  16 #include "../hd46505.h"
  17 #include "../i8237.h"
  18 #include "../i8251.h"
  19 #include "../i8259.h"
  20 #include "../i286.h"
  21 #include "../io.h"
  22 #include "../mb8877.h"
  23 #include "../mc6809.h"
  24 #include "../mc6840.h"
  25 #include "../msm58321.h"
  26 #include "../noise.h"
  27 #include "../pcm1bit.h"
  28
  29 #ifdef USE_DEBUGGER
  30 #include "../debugger.h"
  31 #endif
  32
  33 #include "cmos.h"
  34 #include "keyboard.h"
  35 #include "mainbus.h"
  36 #include "sub.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // initialize
  40 // ----------------------------------------------------------------------------
  41
  42 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  43 {
  44         // create devices
  45         first_device = last_device = NULL;
  46         dummy = new DEVICE(this, emu);  // must be 1st device
  47         event = new EVENT(this, emu);   // must be 2nd device
  48
  49         crtc = new HD46505(this, emu);
  50         cpu = new I286(this, emu);
  51         io = new IO(this, emu);
  52         dma = new I8237(this, emu);
  53         sio = new I8251(this, emu);
  54         pic = new I8259(this, emu);
  55         fdc_2hd = new MB8877(this, emu);
  56         fdc_2hd->set_context_noise_seek(new NOISE(this, emu));
  57         fdc_2hd->set_context_noise_head_down(new NOISE(this, emu));
  58         fdc_2hd->set_context_noise_head_up(new NOISE(this, emu));
  59         fdc_2d = new MB8877(this, emu);
  60         fdc_2d->set_context_noise_seek(new NOISE(this, emu));
  61         fdc_2d->set_context_noise_head_down(new NOISE(this, emu));
  62         fdc_2d->set_context_noise_head_up(new NOISE(this, emu));
  63         subcpu = new MC6809(this, emu);
  64         ptm = new MC6840(this, emu);
  65         rtc = new MSM58321(this, emu);
  66         pcm = new PCM1BIT(this, emu);
  67
  68         cmos = new CMOS(this, emu);
  69         keyboard = new KEYBOARD(this, emu);
  70         mainbus = new MAINBUS(this, emu);
  71
  72
  73
  74
  75
  76         subbus = new SUB(this, emu);
  77
  78         // set contexts
  79         event->set_context_cpu(cpu, 8000000);
  80         event->set_context_cpu(subcpu, 2000000);
  81         event->set_context_sound(pcm);
  82         event->set_context_sound(fdc_2hd->get_context_noise_seek());
  83         event->set_context_sound(fdc_2hd->get_context_noise_head_down());
  84         event->set_context_sound(fdc_2hd->get_context_noise_head_up());
  85         event->set_context_sound(fdc_2d->get_context_noise_seek());
  86         event->set_context_sound(fdc_2d->get_context_noise_head_down());
  87         event->set_context_sound(fdc_2d->get_context_noise_head_up());
  88
  89         keyboard->set_context_main(mainbus);
  90 #ifdef HAS_I286
  91         mainbus->set_context_cpu(cpu);
  92 #endif
  93         mainbus->set_context_dma(dma);
  94         mainbus->set_context_fdc_2hd(fdc_2hd);
  95         mainbus->set_context_fdc_2d(fdc_2d);
  96         mainbus->set_context_pic(pic);
  97         mainbus->set_context_pcm(pcm);
  98         mainbus->set_context_rtc(rtc);
  99         mainbus->set_context_sub(subbus);
 100         mainbus->set_context_keyboard(keyboard);
 101
 102         dma->set_context_memory(mainbus);
 103         dma->set_context_ch0(fdc_2d);
 104         dma->set_context_ch1(fdc_2hd);
 105
 106         sio->set_context_txrdy(mainbus, SIG_MAIN_IRQ0_TX, 1);
 107         sio->set_context_rxrdy(mainbus, SIG_MAIN_IRQ0_RX, 1);
 108         sio->set_context_syndet(mainbus, SIG_MAIN_IRQ0_SYN, 1);
 109
 110         fdc_2hd->set_context_irq(mainbus, SIG_MAIN_IRQ5, 1);
 111         fdc_2hd->set_context_drq(mainbus, SIG_MAIN_DRQ_2HD, 1);
 112         fdc_2hd->set_context_drq(dma, SIG_I8237_CH1, 1);
 113
 114         fdc_2d->set_context_irq(mainbus, SIG_MAIN_IRQ4, 1);
 115         fdc_2d->set_context_drq(mainbus, SIG_MAIN_DRQ_2D, 1);
 116         fdc_2d->set_context_drq(dma, SIG_I8237_CH0, 1);
 117
 118         ptm->set_context_ch0(pcm, SIG_PCM1BIT_SIGNAL, 1);
 119         ptm->set_context_irq(mainbus, SIG_MAIN_IRQ8, 1);
 120         ptm->set_internal_clock(19200); // temporary
 121         ptm->set_external_clock(0, 19200);
 122         ptm->set_external_clock(1, 19200);
 123         ptm->set_external_clock(2, 19200);
 124
 125         rtc->set_context_data(mainbus, SIG_MAIN_RTC_DATA, 0x0f, 0);
 126         rtc->set_context_busy(mainbus, SIG_MAIN_RTC_BUSY, 0x80);
 127
 128         crtc->set_context_disp(subbus, SIG_SUB_DISP, 1);
 129         crtc->set_context_vsync(subbus, SIG_SUB_VSYNC, 1);
 130
 131         subbus->addr_max = 0x10000;
 132         subbus->bank_size = 0x80;
 133         subbus->set_context_crtc(crtc);
 134         subbus->set_chregs_ptr(crtc->get_regs());
 135         subbus->set_context_pcm(pcm);
 136         subbus->set_context_main(mainbus);
 137         subbus->set_context_subcpu(subcpu);
 138         subbus->set_context_keyboard(keyboard);
 139
 140         // cpu bus
 141         cpu->set_context_mem(mainbus);
 142         cpu->set_context_io(io);
 143         cpu->set_context_intr(pic);
 144 #ifdef SINGLE_MODE_DMA
 145         cpu->set_context_dma(dma);
 146 #endif
 147         subcpu->set_context_mem(subbus);
 148 #ifdef USE_DEBUGGER
 149         cpu->set_context_debugger(new DEBUGGER(this, emu));
 150         subcpu->set_context_debugger(new DEBUGGER(this, emu));
 151 #endif
 152
 153
 154         // i/o bus
 155         io->set_iomap_range_rw(0x0000, 0x0001, pic);
 156         io->set_iomap_range_rw(0x0010, 0x001f, dma);
 157         io->set_iomap_range_w(0x0020, 0x0023, mainbus); // dma bank regs
 158 #ifdef HAS_I286
 159         io->set_iomap_single_rw(0x0060, mainbus);               // reset
 160 #endif
 161
 162         io->set_iomap_range_rw(0xf000, 0xf7ff, cmos);
 163         io->set_iomap_range_rw(0xfc80, 0xfcff, subbus); // shared ram
 164
 165         io->set_iomap_range_r(0xfd00, 0xfd01, keyboard);
 166         io->set_iomap_range_rw(0xfd02, 0xfd05, mainbus);
 167
 168         io->set_iomap_range_rw(0xfd06, 0xfd07, sio);
 169
 170         io->set_iomap_single_rw(0xfd0f, mainbus);
 171
 172         io->set_iomap_range_rw(0xfd10, 0xfd11, mainbus);
 173
 174         io->set_iomap_range_rw(0xfd18, 0xfd1b, fdc_2d);
 175         io->set_iomap_range_rw(0xfd1c, 0xfd1f, mainbus);
 176
 177         io->set_iomap_range_r(0xfd20, 0xfd22, subbus);  // attention
 178
 179         io->set_iomap_single_rw(0xfd2c, mainbus);
 180
 181         io->set_iomap_range_rw(0xfd30, 0xfd33, fdc_2hd);
 182         io->set_iomap_range_rw(0xfd34, 0xfd37, mainbus);
 183
 184         io->set_iomap_range_rw(0xfd38, 0xfd3f, ptm);
 185         io->set_iomap_range_rw(0xfd98, 0xfd9f, subbus);
 186         io->set_iomap_single_w(0xfda0, subbus);
 187         io->set_iomap_single_r(0xfda0, mainbus);
 188
 189
 190         // initialize all devices
 191 #if defined(__GIT_REPO_VERSION)
 192         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 193 #endif
 194         for(DEVICE* device = first_device; device; device = device->next_device) {
 195                 device->initialize();
 196         }
 197         decl_state();
 198
 199         for(int i = 0; i < 4; i++) {
 200                 fdc_2hd->set_drive_type(i, DRIVE_TYPE_2HD);
 201                 fdc_2d->set_drive_type(i, DRIVE_TYPE_2D);
 202         }
 203         fdc_2hd->get_disk_handler(0)->drive_num = 0;
 204         fdc_2hd->get_disk_handler(1)->drive_num = 1;
 205         fdc_2d->get_disk_handler(0)->drive_num = 2;
 206         fdc_2d->get_disk_handler(1)->drive_num = 3;
 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
 241         emu->out_debug_log(_T("----- RESET -----\n"));
 242
 243 }
 244
 245 void VM::run()
 246 {
 247         event->drive();
 248 }
 249
 250 // ----------------------------------------------------------------------------
 251 // debugger
 252 // ----------------------------------------------------------------------------
 253
 254 #ifdef USE_DEBUGGER
 255 DEVICE *VM::get_cpu(int index)
 256 {
 257         if(index == 0) {
 258                 return cpu;
 259         } else if(index == 1) {
 260                 return subcpu;
 261         }
 262         return NULL;
 263 }
 264 #endif
 265
 266 // ----------------------------------------------------------------------------
 267 // draw screen
 268 // ----------------------------------------------------------------------------
 269
 270 void VM::draw_screen()
 271 {
 272         subbus->draw_screen();
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // soud manager
 277 // ----------------------------------------------------------------------------
 278
 279 void VM::initialize_sound(int rate, int samples)
 280 {
 281         // init sound manager
 282         event->initialize_sound(rate, samples);
 283
 284         // init sound gen
 285         pcm->initialize_sound(rate, 8000);
 286 }
 287
 288 uint16_t* VM::create_sound(int* extra_frames)
 289 {
 290         return event->create_sound(extra_frames);
 291 }
 292
 293 int VM::get_sound_buffer_ptr()
 294 {
 295         return event->get_sound_buffer_ptr();
 296 }
 297
 298 #ifdef USE_SOUND_VOLUME
 299 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 300 {
 301         if(ch == 0) {
 302                 pcm->set_volume(0, decibel_l, decibel_r);
 303         } else if(ch == 1) {
 304                 fdc_2hd->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 305                 fdc_2hd->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 306                 fdc_2hd->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 307                 fdc_2d->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 308                 fdc_2d->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 309                 fdc_2d->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 310         }
 311 }
 312 #endif
 313
 314 // ----------------------------------------------------------------------------
 315 // notify key
 316 // ----------------------------------------------------------------------------
 317
 318 void VM::key_down(int code, bool repeat)
 319 {
 320         keyboard->key_down(code);
 321 }
 322
 323 void VM::key_up(int code)
 324 {
 325         keyboard->key_up(code);
 326 }
 327
 328 // ----------------------------------------------------------------------------
 329 // user interface
 330 // ----------------------------------------------------------------------------
 331
 332 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 333 {
 334         if(drv < 2) {
 335                 fdc_2hd->open_disk(drv, file_path, bank);
 336         } else if(drv < 4) {
 337                 fdc_2d->open_disk(drv - 2, file_path, bank);
 338         }
 339 }
 340
 341 void VM::close_floppy_disk(int drv)
 342 {
 343         if(drv < 2) {
 344                 fdc_2hd->close_disk(drv);
 345         } else if(drv < 4) {
 346                 fdc_2d->close_disk(drv - 2);
 347         }
 348 }
 349
 350 bool VM::is_floppy_disk_inserted(int drv)
 351 {
 352         if(drv < 2) {
 353                 return fdc_2hd->is_disk_inserted(drv);
 354         } else if(drv < 4) {
 355                 return fdc_2d->is_disk_inserted(drv - 2);
 356         }
 357         return false;
 358 }
 359
 360 void VM::is_floppy_disk_protected(int drv, bool value)
 361 {
 362         if(drv < 2) {
 363                 fdc_2hd->is_disk_protected(drv, value);
 364         } else if(drv < 4) {
 365                 fdc_2d->is_disk_protected(drv - 2, value);
 366         }
 367 }
 368
 369 bool VM::is_floppy_disk_protected(int drv)
 370 {
 371         if(drv < 2) {
 372                 return fdc_2hd->is_disk_protected(drv);
 373         } else if(drv < 4) {
 374                 return fdc_2d->is_disk_protected(drv - 2);
 375         }
 376         return false;
 377 }
 378
 379 uint32_t VM::is_floppy_disk_accessed()
 380 {
 381         return (fdc_2hd->read_signal(0) & 3) | ((fdc_2d->read_signal(0) & 3) << 2);
 382 }
 383
 384 bool VM::is_frame_skippable()
 385 {
 386         return event->is_frame_skippable();
 387 }
 388
 389 void VM::update_config()
 390 {
 391         for(DEVICE* device = first_device; device; device = device->next_device) {
 392                 device->update_config();
 393         }
 394 }
 395
 396 #define STATE_VERSION   1
 397
 398 #include "../../statesub.h"
 399 #include "../../qt/gui/csp_logger.h"
 400 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 401
 402 void VM::decl_state(void)
 403 {
 404         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::FM16BETA_HEAD")), csp_logger);
 405         for(DEVICE* device = first_device; device; device = device->next_device) {
 406                 device->decl_state();
 407         }
 408 }
 409
 410 void VM::save_state(FILEIO* state_fio)
 411 {
 412         //state_fio->FputUint32(STATE_VERSION);
 413
 414         if(state_entry != NULL) {
 415                 state_entry->save_state(state_fio);
 416         }
 417         for(DEVICE* device = first_device; device; device = device->next_device) {
 418                 device->save_state(state_fio);
 419         }
 420 }
 421
 422 bool VM::load_state(FILEIO* state_fio)
 423 {
 424         //if(state_fio->FgetUint32() != STATE_VERSION) {
 425         //      return false;
 426         //}
 427         bool mb = false;
 428         if(state_entry != NULL) {
 429                 mb = state_entry->load_state(state_fio);
 430         }
 431         if(!mb) {
 432                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 433                 return false;
 434         }
 435         for(DEVICE* device = first_device; device; device = device->next_device) {
 436                 if(!device->load_state(state_fio)) {
 437                         return false;
 438                 }
 439         }
 440         return true;
 441 }
 442