source/src/vm/smc777/smc777.cpp

   1 /*
   2         SONY SMC-70 Emulator 'eSMC-70'
   3         SONY SMC-777 Emulator 'eSMC-777'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2015.08.13-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "smc777.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../datarec.h"
  17 #include "../disk.h"
  18 #include "../hd46505.h"
  19 #include "../mb8877.h"
  20 #if defined(_SMC70)
  21 #include "../msm58321.h"
  22 #endif
  23 #include "../noise.h"
  24 #include "../pcm1bit.h"
  25 #if defined(_SMC777)
  26 #include "../sn76489an.h"
  27 #endif
  28 #include "../z80.h"
  29
  30 #ifdef USE_DEBUGGER
  31 #include "../debugger.h"
  32 #endif
  33
  34 #include "memory.h"
  35
  36 using SMC777::MEMORY;
  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         dummy->set_device_name(_T("1st Dummy"));
  49
  50         drec = new DATAREC(this, emu);
  51         drec->set_context_noise_play(new NOISE(this, emu));
  52         drec->set_context_noise_stop(new NOISE(this, emu));
  53         drec->set_context_noise_fast(new NOISE(this, emu));
  54         crtc = new HD46505(this, emu);
  55         fdc = new MB8877(this, emu);
  56         fdc->set_context_noise_seek(new NOISE(this, emu));
  57         fdc->set_context_noise_head_down(new NOISE(this, emu));
  58         fdc->set_context_noise_head_up(new NOISE(this, emu));
  59 #ifdef USE_DEBUGGER
  60         fdc->set_context_debugger(new DEBUGGER(this, emu));
  61 #endif
  62 #if defined(_SMC70)
  63         rtc = new MSM58321(this, emu);
  64 #endif
  65         pcm = new PCM1BIT(this, emu);
  66 #ifdef USE_DEBUGGER
  67         pcm->set_context_debugger(new DEBUGGER(this, emu));
  68 #endif
  69 #if defined(_SMC777)
  70         psg = new SN76489AN(this, emu);
  71 #ifdef USE_DEBUGGER
  72         psg->set_context_debugger(new DEBUGGER(this, emu));
  73 #endif
  74 #endif
  75         cpu = new Z80(this, emu);
  76
  77         memory = new MEMORY(this, emu);
  78
  79         // set contexts
  80         event->set_context_cpu(cpu);
  81         event->set_context_sound(pcm);
  82 #if defined(_SMC777)
  83         event->set_context_sound(psg);
  84 #endif
  85         event->set_context_sound(drec);
  86         event->set_context_sound(fdc->get_context_noise_seek());
  87         event->set_context_sound(fdc->get_context_noise_head_down());
  88         event->set_context_sound(fdc->get_context_noise_head_up());
  89         event->set_context_sound(drec->get_context_noise_play());
  90         event->set_context_sound(drec->get_context_noise_stop());
  91         event->set_context_sound(drec->get_context_noise_fast());
  92
  93         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  94         //pcm->set_realtime_render(true);
  95
  96         drec->set_context_ear(memory, SIG_MEMORY_DATAREC_IN, 1);
  97         crtc->set_context_disp(memory, SIG_MEMORY_CRTC_DISP, 1);
  98         crtc->set_context_vsync(memory, SIG_MEMORY_CRTC_VSYNC, 1);
  99         fdc->set_context_drq(memory, SIG_MEMORY_FDC_DRQ, 1);
 100         fdc->set_context_irq(memory, SIG_MEMORY_FDC_IRQ, 1);
 101 #if defined(_SMC70)
 102         rtc->set_context_data(memory, SIG_MEMORY_RTC_DATA, 0x0f, 0);
 103         rtc->set_context_busy(memory, SIG_MEMORY_RTC_BUSY, 1);
 104 #endif
 105
 106         memory->set_context_cpu(cpu);
 107         memory->set_context_crtc(crtc, crtc->get_regs());
 108         memory->set_context_drec(drec);
 109         memory->set_context_fdc(fdc);
 110         memory->set_context_pcm(pcm);
 111 #if defined(_SMC70)
 112         memory->set_context_rtc(rtc);
 113 #elif defined(_SMC777)
 114         memory->set_context_psg(psg);
 115 #endif
 116
 117         // cpu bus
 118         cpu->set_context_mem(memory);
 119         cpu->set_context_io(memory);
 120         cpu->set_context_intr(dummy);
 121 #ifdef USE_DEBUGGER
 122         cpu->set_context_debugger(new DEBUGGER(this, emu));
 123 #endif
 124
 125         // initialize all devices
 126 #if defined(__GIT_REPO_VERSION)
 127         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 128 #endif
 129         for(DEVICE* device = first_device; device; device = device->next_device) {
 130                 device->initialize();
 131         }
 132         for(int i = 0; i < MAX_DRIVE; i++) {
 133                 fdc->set_drive_type(i, DRIVE_TYPE_2DD); // 1DD
 134                 fdc->set_drive_rpm(i, 600);
 135         }
 136         fdc->write_signal(SIG_MB8877_MOTOR, 1, 1);
 137 }
 138
 139 VM::~VM()
 140 {
 141         // delete all devices
 142         for(DEVICE* device = first_device; device;) {
 143                 DEVICE *next_device = device->next_device;
 144                 device->release();
 145                 delete device;
 146                 device = next_device;
 147         }
 148 }
 149
 150 DEVICE* VM::get_device(int id)
 151 {
 152         for(DEVICE* device = first_device; device; device = device->next_device) {
 153                 if(device->this_device_id == id) {
 154                         return device;
 155                 }
 156         }
 157         return NULL;
 158 }
 159
 160 // ----------------------------------------------------------------------------
 161 // drive virtual machine
 162 // ----------------------------------------------------------------------------
 163
 164 void VM::reset()
 165 {
 166         // reset all devices
 167         for(DEVICE* device = first_device; device; device = device->next_device) {
 168                 device->reset();
 169         }
 170         memory->warm_start = false;
 171 }
 172
 173 void VM::special_reset()
 174 {
 175         // reset all devices
 176         for(DEVICE* device = first_device; device; device = device->next_device) {
 177                 device->reset();
 178         }
 179         memory->warm_start = true;
 180 }
 181
 182 void VM::run()
 183 {
 184         event->drive();
 185 }
 186
 187 double VM::get_frame_rate()
 188 {
 189         return event->get_frame_rate();
 190 }
 191
 192 // ----------------------------------------------------------------------------
 193 // debugger
 194 // ----------------------------------------------------------------------------
 195
 196 #ifdef USE_DEBUGGER
 197 DEVICE *VM::get_cpu(int index)
 198 {
 199         if(index == 0) {
 200                 return cpu;
 201         }
 202         return NULL;
 203 }
 204 #endif
 205
 206 // ----------------------------------------------------------------------------
 207 // draw screen
 208 // ----------------------------------------------------------------------------
 209
 210 void VM::draw_screen()
 211 {
 212         memory->draw_screen();
 213 }
 214
 215 // ----------------------------------------------------------------------------
 216 // soud manager
 217 // ----------------------------------------------------------------------------
 218
 219 void VM::initialize_sound(int rate, int samples)
 220 {
 221         // init sound manager
 222         event->initialize_sound(rate, samples);
 223
 224         // init sound gen
 225         pcm->initialize_sound(rate, 5000);
 226 #if defined(_SMC777)
 227         psg->initialize_sound(rate, CPU_CLOCKS, 5000);
 228 #endif
 229 }
 230
 231 uint16_t* VM::create_sound(int* extra_frames)
 232 {
 233         return event->create_sound(extra_frames);
 234 }
 235
 236 int VM::get_sound_buffer_ptr()
 237 {
 238         return event->get_sound_buffer_ptr();
 239 }
 240
 241 #ifdef USE_SOUND_VOLUME
 242 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 243 {
 244 #if defined(_SMC777)
 245         if(ch-- == 0) {
 246                 psg->set_volume(0, decibel_l, decibel_r);
 247         } else
 248 #endif
 249         if(ch-- == 0) {
 250                 pcm->set_volume(0, decibel_l, decibel_r);
 251         } else if(ch-- == 0) {
 252                 drec->set_volume(0, decibel_l, decibel_r);
 253         } else if(ch-- == 0) {
 254                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 255                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 256                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 257         } else if(ch-- == 0) {
 258                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 259                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 260                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 261         }
 262 }
 263 #endif
 264
 265 // ----------------------------------------------------------------------------
 266 // notify key
 267 // ----------------------------------------------------------------------------
 268
 269 void VM::key_down(int code, bool repeat)
 270 {
 271         if(!repeat) {
 272                 memory->key_down_up(code, true);
 273         }
 274 }
 275
 276 void VM::key_up(int code)
 277 {
 278         memory->key_down_up(code, false);
 279 }
 280
 281 bool VM::get_caps_locked()
 282 {
 283         return memory->get_caps_locked();
 284 }
 285
 286 bool VM::get_kana_locked()
 287 {
 288         return memory->get_kana_locked();
 289 }
 290
 291 // ----------------------------------------------------------------------------
 292 // user interface
 293 // ----------------------------------------------------------------------------
 294
 295 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 296 {
 297         fdc->open_disk(drv, file_path, bank);
 298 }
 299
 300 void VM::close_floppy_disk(int drv)
 301 {
 302         fdc->close_disk(drv);
 303 }
 304
 305 bool VM::is_floppy_disk_inserted(int drv)
 306 {
 307         return fdc->is_disk_inserted(drv);
 308 }
 309
 310 void VM::is_floppy_disk_protected(int drv, bool value)
 311 {
 312         fdc->is_disk_protected(drv, value);
 313 }
 314
 315 bool VM::is_floppy_disk_protected(int drv)
 316 {
 317         return fdc->is_disk_protected(drv);
 318 }
 319
 320 uint32_t VM::is_floppy_disk_accessed()
 321 {
 322         return fdc->read_signal(0);
 323 }
 324
 325 void VM::play_tape(int drv, const _TCHAR* file_path)
 326 {
 327         bool remote = drec->get_remote();
 328
 329         if(drec->play_tape(file_path) && remote) {
 330                 // if machine already sets remote on, start playing now
 331                 push_play(drv);
 332         }
 333 }
 334
 335 void VM::rec_tape(int drv, const _TCHAR* file_path)
 336 {
 337         bool remote = drec->get_remote();
 338
 339         if(drec->rec_tape(file_path) && remote) {
 340                 // if machine already sets remote on, start recording now
 341                 push_play(drv);
 342         }
 343 }
 344
 345 void VM::close_tape(int drv)
 346 {
 347         emu->lock_vm();
 348         drec->close_tape();
 349         emu->unlock_vm();
 350         drec->set_remote(false);
 351 }
 352
 353 bool VM::is_tape_inserted(int drv)
 354 {
 355         return drec->is_tape_inserted();
 356 }
 357
 358 bool VM::is_tape_playing(int drv)
 359 {
 360         return drec->is_tape_playing();
 361 }
 362
 363 bool VM::is_tape_recording(int drv)
 364 {
 365         return drec->is_tape_recording();
 366 }
 367
 368 int VM::get_tape_position(int drv)
 369 {
 370         return drec->get_tape_position();
 371 }
 372
 373 const _TCHAR* VM::get_tape_message(int drv)
 374 {
 375         return drec->get_message();
 376 }
 377
 378 void VM::push_play(int drv)
 379 {
 380         drec->set_remote(false);
 381         drec->set_ff_rew(0);
 382         drec->set_remote(true);
 383 }
 384
 385 void VM::push_stop(int drv)
 386 {
 387         drec->set_remote(false);
 388 }
 389
 390 void VM::push_fast_forward(int drv)
 391 {
 392         drec->set_remote(false);
 393         drec->set_ff_rew(1);
 394         drec->set_remote(true);
 395 }
 396
 397 void VM::push_fast_rewind(int drv)
 398 {
 399         drec->set_remote(false);
 400         drec->set_ff_rew(-1);
 401         drec->set_remote(true);
 402 }
 403
 404 bool VM::is_frame_skippable()
 405 {
 406         return event->is_frame_skippable();
 407 }
 408
 409 void VM::update_config()
 410 {
 411         for(DEVICE* device = first_device; device; device = device->next_device) {
 412                 device->update_config();
 413         }
 414 }
 415
 416 #define STATE_VERSION   4
 417
 418 bool VM::process_state(FILEIO* state_fio, bool loading)
 419 {
 420         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 421                 return false;
 422         }
 423         for(DEVICE* device = first_device; device; device = device->next_device) {
 424                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 425                 // const char *name = typeid(*device).name();
 426                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 427                 const char *name = device->get_device_name();
 428                 int len = strlen(name);
 429
 430                 if(!state_fio->StateCheckInt32(len)) {
 431                         if(loading) {
 432                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 433                         }
 434                         return false;
 435                 }
 436                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 437                         if(loading) {
 438                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 439                         }
 440                         return false;
 441                 }
 442                 if(!device->process_state(state_fio, loading)) {
 443                         if(loading) {
 444                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 445                         }
 446                         return false;
 447                 }
 448         }
 449         // Machine specified.
 450         return true;
 451 }