source/src/vm/hc40/hc40.cpp

   1 /*
   2         EPSON HC-40 Emulator 'eHC-40'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2008.02.23 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "hc40.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../beep.h"
  16 #include "../datarec.h"
  17 #include "../noise.h"
  18 #include "../ptf20.h"
  19 #include "../z80.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "io.h"
  26 #include "memory.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // initialize
  30 // ----------------------------------------------------------------------------
  31
  32 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  33 {
  34         // create devices
  35         first_device = last_device = NULL;
  36         dummy = new DEVICE(this, emu);  // must be 1st device
  37         event = new EVENT(this, emu);   // must be 2nd device
  38         dummy->set_device_name(_T("1st Dummy"));
  39
  40         beep = new BEEP(this, emu);
  41         drec = new DATAREC(this, emu);
  42         drec->set_context_noise_play(new NOISE(this, emu));
  43         drec->set_context_noise_stop(new NOISE(this, emu));
  44         drec->set_context_noise_fast(new NOISE(this, emu));
  45         tf20 = new PTF20(this, emu);
  46         cpu = new Z80(this, emu);
  47
  48         io = new IO(this, emu);
  49         memory = new MEMORY(this, emu);
  50         // set contexts
  51         event->set_context_cpu(cpu);
  52         event->set_context_sound(beep);
  53         event->set_context_sound(drec);
  54         event->set_context_sound(drec->get_context_noise_play());
  55         event->set_context_sound(drec->get_context_noise_stop());
  56         event->set_context_sound(drec->get_context_noise_fast());
  57
  58         drec->set_context_ear(io, SIG_IO_DREC, 1);
  59         tf20->set_context_sio(io, SIG_IO_ART);
  60
  61         io->set_context_cpu(cpu);
  62         io->set_context_mem(memory, memory->get_ram());
  63         io->set_context_tf20(tf20);
  64         io->set_context_beep(beep);
  65         io->set_context_drec(drec);
  66
  67         // cpu bus
  68         cpu->set_context_mem(memory);
  69         cpu->set_context_io(io);
  70         cpu->set_context_intr(io);
  71 #ifdef USE_DEBUGGER
  72         cpu->set_context_debugger(new DEBUGGER(this, emu));
  73 #endif
  74
  75         // initialize all devices
  76 #if defined(__GIT_REPO_VERSION)
  77         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  78 #endif
  79         for(DEVICE* device = first_device; device; device = device->next_device) {
  80                 device->initialize();
  81         }
  82         decl_state();
  83 }
  84
  85 VM::~VM()
  86 {
  87         // delete all devices
  88         for(DEVICE* device = first_device; device;) {
  89                 DEVICE *next_device = device->next_device;
  90                 device->release();
  91                 delete device;
  92                 device = next_device;
  93         }
  94 }
  95
  96 DEVICE* VM::get_device(int id)
  97 {
  98         for(DEVICE* device = first_device; device; device = device->next_device) {
  99                 if(device->this_device_id == id) {
 100                         return device;
 101                 }
 102         }
 103         return NULL;
 104 }
 105
 106 // ----------------------------------------------------------------------------
 107 // drive virtual machine
 108 // ----------------------------------------------------------------------------
 109
 110 void VM::reset()
 111 {
 112         // reset all devices
 113         for(DEVICE* device = first_device; device; device = device->next_device) {
 114                 device->reset();
 115         }
 116 }
 117
 118 void VM::special_reset()
 119 {
 120         // system reset
 121         for(DEVICE* device = first_device; device; device = device->next_device) {
 122                 device->reset();
 123         }
 124         io->sysreset();
 125 }
 126
 127 void VM::run()
 128 {
 129         event->drive();
 130 }
 131
 132 // ----------------------------------------------------------------------------
 133 // debugger
 134 // ----------------------------------------------------------------------------
 135
 136 #ifdef USE_DEBUGGER
 137 DEVICE *VM::get_cpu(int index)
 138 {
 139         if(index == 0) {
 140                 return cpu;
 141         }
 142         return NULL;
 143 }
 144 #endif
 145
 146 // ----------------------------------------------------------------------------
 147 // draw screen
 148 // ----------------------------------------------------------------------------
 149
 150 void VM::draw_screen()
 151 {
 152         io->draw_screen();
 153 }
 154
 155 // ----------------------------------------------------------------------------
 156 // soud manager
 157 // ----------------------------------------------------------------------------
 158
 159 void VM::initialize_sound(int rate, int samples)
 160 {
 161         // init sound manager
 162         event->initialize_sound(rate, samples);
 163
 164         // init sound gen
 165         beep->initialize_sound(rate, 1000, 8000);
 166 }
 167
 168 uint16_t* VM::create_sound(int* extra_frames)
 169 {
 170         return event->create_sound(extra_frames);
 171 }
 172
 173 int VM::get_sound_buffer_ptr()
 174 {
 175         return event->get_sound_buffer_ptr();
 176 }
 177
 178 #ifdef USE_SOUND_VOLUME
 179 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 180 {
 181         if(ch == 0) {
 182                 beep->set_volume(0, decibel_l, decibel_r);
 183         } else if(ch == 1) {
 184                 drec->set_volume(0, decibel_l, decibel_r);
 185         } else if(ch == 2) {
 186                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 187                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 188                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 189         }
 190 }
 191 #endif
 192
 193 // ----------------------------------------------------------------------------
 194 // notify key
 195 // ----------------------------------------------------------------------------
 196
 197 void VM::key_down(int code, bool repeat)
 198 {
 199         io->key_down(code);
 200 }
 201
 202 void VM::key_up(int code)
 203 {
 204         io->key_up(code);
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // user interface
 209 // ----------------------------------------------------------------------------
 210
 211 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 212 {
 213         tf20->open_disk(drv, file_path, bank);
 214 }
 215
 216 void VM::close_floppy_disk(int drv)
 217 {
 218         tf20->close_disk(drv);
 219 }
 220
 221 bool VM::is_floppy_disk_inserted(int drv)
 222 {
 223         return tf20->is_disk_inserted(drv);
 224 }
 225
 226 void VM::is_floppy_disk_protected(int drv, bool value)
 227 {
 228         tf20->is_disk_protected(drv, value);
 229 }
 230
 231 bool VM::is_floppy_disk_protected(int drv)
 232 {
 233         return tf20->is_disk_protected(drv);
 234 }
 235
 236 uint32_t VM::is_floppy_disk_accessed()
 237 {
 238         return tf20->read_signal(0);
 239 }
 240
 241 void VM::play_tape(int drv, const _TCHAR* file_path)
 242 {
 243         drec->play_tape(file_path);
 244 //      drec->set_remote(true);
 245 }
 246
 247 void VM::rec_tape(int drv, const _TCHAR* file_path)
 248 {
 249         drec->rec_tape(file_path);
 250 //      drec->set_remote(true);
 251 }
 252
 253 void VM::close_tape(int drv)
 254 {
 255         emu->lock_vm();
 256         drec->close_tape();
 257         emu->unlock_vm();
 258 //      drec->set_remote(false);
 259 }
 260
 261 bool VM::is_tape_inserted(int drv)
 262 {
 263         return drec->is_tape_inserted();
 264 }
 265
 266 bool VM::is_tape_playing(int drv)
 267 {
 268         return drec->is_tape_playing();
 269 }
 270
 271 bool VM::is_tape_recording(int drv)
 272 {
 273         return drec->is_tape_recording();
 274 }
 275
 276 int VM::get_tape_position(int drv)
 277 {
 278         return drec->get_tape_position();
 279 }
 280
 281 const _TCHAR* VM::get_tape_message(int drv)
 282 {
 283         return drec->get_message();
 284 }
 285
 286 void VM::push_play(int drv)
 287 {
 288         drec->set_ff_rew(0);
 289         drec->set_remote(true);
 290 }
 291
 292 void VM::push_stop(int drv)
 293 {
 294         drec->set_remote(false);
 295 }
 296
 297 void VM::push_fast_forward(int drv)
 298 {
 299         drec->set_ff_rew(1);
 300         drec->set_remote(true);
 301 }
 302
 303 void VM::push_fast_rewind(int drv)
 304 {
 305         drec->set_ff_rew(-1);
 306         drec->set_remote(true);
 307 }
 308
 309 bool VM::is_frame_skippable()
 310 {
 311         return event->is_frame_skippable();
 312 }
 313
 314 void VM::update_config()
 315 {
 316         for(DEVICE* device = first_device; device; device = device->next_device) {
 317                 device->update_config();
 318         }
 319 }
 320
 321 #define STATE_VERSION   3
 322
 323 #include "../../statesub.h"
 324 #include "../../qt/gui/csp_logger.h"
 325 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 326
 327 void VM::decl_state(void)
 328 {
 329         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::HC_40_HEAD")), csp_logger);
 330         for(DEVICE* device = first_device; device; device = device->next_device) {
 331                 device->decl_state();
 332         }
 333 }
 334
 335 void VM::save_state(FILEIO* state_fio)
 336 {
 337         //state_fio->FputUint32(STATE_VERSION);
 338
 339         if(state_entry != NULL) {
 340                 state_entry->save_state(state_fio);
 341         }
 342         for(DEVICE* device = first_device; device; device = device->next_device) {
 343                 device->save_state(state_fio);
 344         }
 345 }
 346
 347 bool VM::load_state(FILEIO* state_fio)
 348 {
 349         //if(state_fio->FgetUint32() != STATE_VERSION) {
 350         //      return false;
 351         //}
 352         bool mb = false;
 353         if(state_entry != NULL) {
 354                 mb = state_entry->load_state(state_fio);
 355         }
 356         if(!mb) {
 357                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 358                 return false;
 359         }
 360         for(DEVICE* device = first_device; device; device = device->next_device) {
 361                 if(!device->load_state(state_fio)) {
 362                         return false;
 363                 }
 364         }
 365         return true;
 366 }
 367
 368 bool VM::process_state(FILEIO* state_fio, bool loading)
 369 {
 370         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 371                 return false;
 372         }
 373         for(DEVICE* device = first_device; device; device = device->next_device) {
 374                 const char *name = typeid(*device).name() + 6; // skip "class "
 375                 int len = strlen(name);
 376
 377                 if(!state_fio->StateCheckInt32(len)) {
 378                         return false;
 379                 }
 380                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 381                         return false;
 382                 }
 383                 if(!device->process_state(state_fio, loading)) {
 384                         return false;
 385                 }
 386         }
 387         return true;
 388 }