source/src/vm/pc8201/pc8201.cpp

   1 /*
   2         NEC PC-8201 Emulator 'ePC-8201'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2009.03.31-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "pc8201.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../i8080.h"
  17 #include "../i8155.h"
  18 #include "../io.h"
  19 #include "../noise.h"
  20 #include "../pcm1bit.h"
  21 #include "../upd1990a.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "cmt.h"
  28 #include "keyboard.h"
  29 #include "lcd.h"
  30 #include "memory.h"
  31
  32 // ----------------------------------------------------------------------------
  33 // initialize
  34 // ----------------------------------------------------------------------------
  35
  36 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  37 {
  38         // create devices
  39         first_device = last_device = NULL;
  40         dummy = new DEVICE(this, emu);  // must be 1st device
  41         event = new EVENT(this, emu);   // must be 2nd device
  42
  43         drec = new DATAREC(this, emu);
  44         drec->set_context_noise_play(new NOISE(this, emu));
  45         drec->set_context_noise_stop(new NOISE(this, emu));
  46         drec->set_context_noise_fast(new NOISE(this, emu));
  47         cpu = new I8080(this, emu);
  48         pio = new I8155(this, emu);
  49         io = new IO(this, emu);
  50         pcm = new PCM1BIT(this, emu);
  51         rtc = new UPD1990A(this, emu);
  52
  53         cmt = new CMT(this, emu);
  54         keyboard = new KEYBOARD(this, emu);
  55         lcd = new LCD(this, emu);
  56         memory = new MEMORY(this, emu);
  57
  58         // set contexts
  59         event->set_context_cpu(cpu);
  60         event->set_context_sound(pcm);
  61         event->set_context_sound(drec);
  62         event->set_context_sound(drec->get_context_noise_play());
  63         event->set_context_sound(drec->get_context_noise_stop());
  64         event->set_context_sound(drec->get_context_noise_fast());
  65
  66         drec->set_context_ear(cpu, SIG_I8085_SID, 1);
  67         cpu->set_context_sod(cmt, SIG_CMT_SOD, 1);
  68         pio->set_context_port_a(rtc, SIG_UPD1990A_C0, 1, 0);
  69         pio->set_context_port_a(rtc, SIG_UPD1990A_C1, 2, 0);
  70         pio->set_context_port_a(rtc, SIG_UPD1990A_C2, 4, 0);
  71         pio->set_context_port_a(rtc, SIG_UPD1990A_CLK, 8, 0);
  72         pio->set_context_port_a(rtc, SIG_UPD1990A_DIN, 0x10, 0);
  73         pio->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN_L, 0xff, 0);
  74         pio->set_context_port_a(lcd, SIG_LCD_CHIPSEL_L, 0xff, 0);
  75         pio->set_context_port_b(keyboard, SIG_KEYBOARD_COLUMN_H, 1, 0);
  76         pio->set_context_port_b(lcd, SIG_LCD_CHIPSEL_H, 3, 0);
  77         pio->set_context_port_b(pcm, SIG_PCM1BIT_MUTE, 0x20, 0);
  78         pio->set_context_timer(pcm, SIG_PCM1BIT_SIGNAL, 1);
  79         pio->set_constant_clock(CPU_CLOCKS);
  80         rtc->set_context_dout(pio, SIG_I8155_PORT_C, 1);
  81         rtc->set_context_tp(cpu, SIG_I8085_RST7, 1);
  82
  83         memory->set_context_cmt(cmt);
  84         memory->set_context_drec(drec);
  85         memory->set_context_rtc(rtc);
  86
  87         // cpu bus
  88         cpu->set_context_mem(memory);
  89         cpu->set_context_io(io);
  90         cpu->set_context_intr(io);
  91 #ifdef USE_DEBUGGER
  92         cpu->set_context_debugger(new DEBUGGER(this, emu));
  93 #endif
  94
  95         // i/o bus
  96         io->set_iomap_range_w(0x90, 0x9f, memory);
  97         io->set_iomap_range_rw(0xa0, 0xaf, memory);
  98         io->set_iomap_range_rw(0xb0, 0xbf, pio);
  99         io->set_iomap_range_r(0xe0, 0xef, keyboard);
 100         io->set_iomap_range_rw(0xf0, 0xff, lcd);
 101
 102         // initialize all devices
 103 #if defined(__GIT_REPO_VERSION)
 104         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 105 #endif
 106         for(DEVICE* device = first_device; device; device = device->next_device) {
 107                 device->initialize();
 108         }
 109         decl_state();
 110         rtc->write_signal(SIG_UPD1990A_STB, 0, 0);
 111 }
 112
 113 VM::~VM()
 114 {
 115         // delete all devices
 116         for(DEVICE* device = first_device; device;) {
 117                 DEVICE *next_device = device->next_device;
 118                 device->release();
 119                 delete device;
 120                 device = next_device;
 121         }
 122 }
 123
 124 DEVICE* VM::get_device(int id)
 125 {
 126         for(DEVICE* device = first_device; device; device = device->next_device) {
 127                 if(device->this_device_id == id) {
 128                         return device;
 129                 }
 130         }
 131         return NULL;
 132 }
 133
 134 // ----------------------------------------------------------------------------
 135 // drive virtual machine
 136 // ----------------------------------------------------------------------------
 137
 138 void VM::reset()
 139 {
 140         // reset all devices
 141         for(DEVICE* device = first_device; device; device = device->next_device) {
 142                 device->reset();
 143         }
 144 }
 145
 146 void VM::run()
 147 {
 148         event->drive();
 149 }
 150
 151 // ----------------------------------------------------------------------------
 152 // debugger
 153 // ----------------------------------------------------------------------------
 154
 155 #ifdef USE_DEBUGGER
 156 DEVICE *VM::get_cpu(int index)
 157 {
 158         if(index == 0) {
 159                 return cpu;
 160         }
 161         return NULL;
 162 }
 163 #endif
 164
 165 // ----------------------------------------------------------------------------
 166 // draw screen
 167 // ----------------------------------------------------------------------------
 168
 169 void VM::draw_screen()
 170 {
 171         lcd->draw_screen();
 172 }
 173
 174 // ----------------------------------------------------------------------------
 175 // soud manager
 176 // ----------------------------------------------------------------------------
 177
 178 void VM::initialize_sound(int rate, int samples)
 179 {
 180         // init sound manager
 181         event->initialize_sound(rate, samples);
 182
 183         // init sound gen
 184         pcm->initialize_sound(rate, 8000);
 185 }
 186
 187 uint16_t* VM::create_sound(int* extra_frames)
 188 {
 189         return event->create_sound(extra_frames);
 190 }
 191
 192 int VM::get_sound_buffer_ptr()
 193 {
 194         return event->get_sound_buffer_ptr();
 195 }
 196
 197 #ifdef USE_SOUND_VOLUME
 198 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 199 {
 200         if(ch == 0) {
 201                 pcm->set_volume(0, decibel_l, decibel_r);
 202         } else if(ch == 1) {
 203                 drec->set_volume(0, decibel_l, decibel_r);
 204         } else if(ch == 2) {
 205                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 206                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 207                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 208         }
 209 }
 210 #endif
 211
 212 // ----------------------------------------------------------------------------
 213 // notify key
 214 // ----------------------------------------------------------------------------
 215
 216 void VM::key_down(int code, bool repeat)
 217 {
 218         keyboard->key_down(code);
 219 }
 220
 221 void VM::key_up(int code)
 222 {
 223 }
 224
 225 bool VM::get_caps_locked()
 226 {
 227         return keyboard->get_caps_locked();
 228 }
 229
 230 bool VM::get_kana_locked()
 231 {
 232         return keyboard->get_kana_locked();
 233 }
 234
 235 // ----------------------------------------------------------------------------
 236 // user interface
 237 // ----------------------------------------------------------------------------
 238
 239 void VM::play_tape(int drv, const _TCHAR* file_path)
 240 {
 241         cmt->close_tape();
 242         drec->play_tape(file_path);
 243 //      drec->set_remote(true);
 244 }
 245
 246 void VM::rec_tape(int drv, const _TCHAR* file_path)
 247 {
 248         emu->lock_vm();
 249         drec->close_tape();
 250         emu->unlock_vm();
 251 //      drec->set_remote(false);
 252         cmt->rec_tape(file_path);
 253 }
 254
 255 void VM::close_tape(int drv)
 256 {
 257         emu->lock_vm();
 258         drec->close_tape();
 259         emu->unlock_vm();
 260 //      drec->set_remote(false);
 261         cmt->close_tape();
 262 }
 263
 264 bool VM::is_tape_inserted(int drv)
 265 {
 266         return drec->is_tape_inserted() || cmt->is_tape_inserted();
 267 }
 268
 269 bool VM::is_tape_playing(int drv)
 270 {
 271         if(drec->is_tape_inserted()) {
 272                 return drec->is_tape_playing();
 273         } else {
 274                 return cmt->is_tape_playing();
 275         }
 276 }
 277
 278 bool VM::is_tape_recording(int drv)
 279 {
 280         if(drec->is_tape_inserted()) {
 281                 return drec->is_tape_recording();
 282         } else {
 283                 return cmt->is_tape_recording();
 284         }
 285 }
 286
 287 int VM::get_tape_position(int drv)
 288 {
 289         if(drec->is_tape_inserted()) {
 290                 return drec->get_tape_position();
 291         } else {
 292                 return cmt->get_tape_position();
 293         }
 294 }
 295
 296 const _TCHAR* VM::get_tape_message(int drv)
 297 {
 298         if(drec->is_tape_inserted()) {
 299                 return drec->get_message();
 300         } else {
 301                 return NULL;
 302         }
 303 }
 304
 305 void VM::push_play(int drv)
 306 {
 307         if(drec->is_tape_inserted()) {
 308                 drec->set_ff_rew(0);
 309                 drec->set_remote(true);
 310         }
 311 }
 312
 313 void VM::push_stop(int drv)
 314 {
 315         if(drec->is_tape_inserted()) {
 316                 drec->set_remote(false);
 317         }
 318 }
 319
 320 void VM::push_fast_forward(int drv)
 321 {
 322         if(drec->is_tape_inserted()) {
 323                 drec->set_ff_rew(1);
 324                 drec->set_remote(true);
 325         }
 326 }
 327
 328 void VM::push_fast_rewind(int drv)
 329 {
 330         if(drec->is_tape_inserted()) {
 331                 drec->set_ff_rew(-1);
 332                 drec->set_remote(true);
 333         }
 334 }
 335
 336 bool VM::is_frame_skippable()
 337 {
 338         return event->is_frame_skippable();
 339 }
 340
 341 void VM::update_config()
 342 {
 343         for(DEVICE* device = first_device; device; device = device->next_device) {
 344                 device->update_config();
 345         }
 346 }
 347
 348 #define STATE_VERSION   3
 349
 350 #include "../../statesub.h"
 351 #include "../../qt/gui/csp_logger.h"
 352 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 353
 354 void VM::decl_state(void)
 355 {
 356 #if defined(_PC8201)
 357         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_8201_HEAD")), csp_logger);
 358 #elif defined(_PC8201A)
 359         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_8201A_HEAD")), csp_logger);
 360 #else
 361         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_8201_SERIES_HEAD")), csp_logger);
 362 #endif
 363
 364         for(DEVICE* device = first_device; device; device = device->next_device) {
 365                 device->decl_state();
 366         }
 367 }
 368
 369 void VM::save_state(FILEIO* state_fio)
 370 {
 371         //state_fio->FputUint32(STATE_VERSION);
 372
 373         if(state_entry != NULL) {
 374                 state_entry->save_state(state_fio);
 375         }
 376         for(DEVICE* device = first_device; device; device = device->next_device) {
 377                 device->save_state(state_fio);
 378         }
 379 }
 380
 381 bool VM::load_state(FILEIO* state_fio)
 382 {
 383         //if(state_fio->FgetUint32() != STATE_VERSION) {
 384         //      return false;
 385         //}
 386         bool mb = false;
 387         if(state_entry != NULL) {
 388                 mb = state_entry->load_state(state_fio);
 389         }
 390         if(!mb) {
 391                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 392                 return false;
 393         }
 394         for(DEVICE* device = first_device; device; device = device->next_device) {
 395                 if(!device->load_state(state_fio)) {
 396                         return false;
 397                 }
 398         }
 399         return true;
 400 }
 401