source/src/vm/pc2001/pc2001.cpp

   1 /*
   2         NEC PC-2001 Emulator 'ePC-2001'
   3
   4         Origin : PockEmul
   5         Author : Takeda.Toshiya
   6         Date   : 2016.03.18-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "pc2001.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../datarec.h"
  17 #include "../memory.h"
  18 #include "../noise.h"
  19 #include "../pcm1bit.h"
  20 #include "../upd16434.h"
  21 #include "../upd1990a.h"
  22 #include "../upd7810.h"
  23
  24 #ifdef USE_DEBUGGER
  25 #include "../debugger.h"
  26 #endif
  27
  28 #include "io.h"
  29
  30 // ----------------------------------------------------------------------------
  31 // initialize
  32 // ----------------------------------------------------------------------------
  33
  34 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  35 {
  36         // create devices
  37         first_device = last_device = NULL;
  38         dummy = new DEVICE(this, emu);  // must be 1st device
  39         event = new EVENT(this, emu);   // must be 2nd device
  40
  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         memory = new MEMORY(this, emu);
  46         pcm = new PCM1BIT(this, emu);
  47         lcd[0] = new UPD16434(this, emu);
  48         lcd[0]->set_device_name(_T("uPD16434 LCD Controller #0"));
  49         lcd[1] = new UPD16434(this, emu);
  50         lcd[1]->set_device_name(_T("uPD16434 LCD Controller #1"));
  51         lcd[2] = new UPD16434(this, emu);
  52         lcd[2]->set_device_name(_T("uPD16434 LCD Controller #2"));
  53         lcd[3] = new UPD16434(this, emu);
  54         lcd[3]->set_device_name(_T("uPD16434 LCD Controller #3"));
  55         rtc = new UPD1990A(this, emu);
  56         cpu = new UPD7810(this, emu);
  57
  58         io = new IO(this, emu);
  59
  60         // set contexts
  61         event->set_context_cpu(cpu);
  62         event->set_context_sound(pcm);
  63         event->set_context_sound(drec);
  64         event->set_context_sound(drec->get_context_noise_play());
  65         event->set_context_sound(drec->get_context_noise_stop());
  66         event->set_context_sound(drec->get_context_noise_fast());
  67
  68         drec->set_context_ear(io, SIG_IO_DREC_IN, 1);
  69         rtc->set_context_dout(io, SIG_IO_RTC_IN, 1);
  70         cpu->set_context_to(pcm, SIG_PCM1BIT_SIGNAL, 1);
  71
  72         io->set_context_lcd(0, lcd[0]);
  73         io->set_context_lcd(1, lcd[1]);
  74         io->set_context_lcd(2, lcd[2]);
  75         io->set_context_lcd(3, lcd[3]);
  76         io->set_context_drec(drec);
  77         io->set_context_rtc(rtc);
  78         io->set_context_cpu(cpu);
  79
  80         // memory bus
  81         memset(ram, 0xff, sizeof(ram));
  82 //      memset(ram, 0, sizeof(ram));
  83         memset(rom1, 0xff, sizeof(rom1));
  84         memset(rom2, 0xff, sizeof(rom2));
  85
  86         memory->read_bios(_T("0000-0FFF.ROM"), rom1, sizeof(rom1));
  87         memory->read_bios(_T("2000-5FFF.ROM"), rom2, sizeof(rom2));
  88
  89         memory->set_memory_r(0x0000, 0x0fff, rom1);
  90         memory->set_memory_r(0x2000, 0x5fff, rom2);
  91         memory->set_memory_rw(0xb000, 0xffff, ram);
  92
  93         // cpu bus
  94         cpu->set_context_mem(memory);
  95         cpu->set_context_io(io);
  96 #ifdef USE_DEBUGGER
  97         cpu->set_context_debugger(new DEBUGGER(this, emu));
  98 #endif
  99
 100         // initialize all devices
 101 #if defined(__GIT_REPO_VERSION)
 102         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 103 #endif
 104         for(DEVICE* device = first_device; device; device = device->next_device) {
 105                 device->initialize();
 106         }
 107         decl_state();
 108 }
 109
 110 VM::~VM()
 111 {
 112         // delete all devices
 113         for(DEVICE* device = first_device; device;) {
 114                 DEVICE *next_device = device->next_device;
 115                 device->release();
 116                 delete device;
 117                 device = next_device;
 118         }
 119 }
 120
 121 DEVICE* VM::get_device(int id)
 122 {
 123         for(DEVICE* device = first_device; device; device = device->next_device) {
 124                 if(device->this_device_id == id) {
 125                         return device;
 126                 }
 127         }
 128         return NULL;
 129 }
 130
 131 // ----------------------------------------------------------------------------
 132 // drive virtual machine
 133 // ----------------------------------------------------------------------------
 134
 135 void VM::reset()
 136 {
 137         // reset all devices
 138         for(DEVICE* device = first_device; device; device = device->next_device) {
 139                 device->reset();
 140         }
 141 }
 142
 143 void VM::run()
 144 {
 145         event->drive();
 146 }
 147
 148 // ----------------------------------------------------------------------------
 149 // debugger
 150 // ----------------------------------------------------------------------------
 151
 152 #ifdef USE_DEBUGGER
 153 DEVICE *VM::get_cpu(int index)
 154 {
 155         if(index == 0) {
 156                 return cpu;
 157         }
 158         return NULL;
 159 }
 160 #endif
 161
 162 // ----------------------------------------------------------------------------
 163 // draw screen
 164 // ----------------------------------------------------------------------------
 165
 166 void VM::draw_screen()
 167 {
 168         for(int i = 0; i < 4; i++) {
 169                 lcd[i]->draw(60 * i);
 170         }
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // soud manager
 175 // ----------------------------------------------------------------------------
 176
 177 void VM::initialize_sound(int rate, int samples)
 178 {
 179         // init sound manager
 180         event->initialize_sound(rate, samples);
 181
 182         // init sound gen
 183         pcm->initialize_sound(rate, 8000);
 184 }
 185
 186 uint16_t* VM::create_sound(int* extra_frames)
 187 {
 188         return event->create_sound(extra_frames);
 189 }
 190
 191 int VM::get_sound_buffer_ptr()
 192 {
 193         return event->get_sound_buffer_ptr();
 194 }
 195
 196 #ifdef USE_SOUND_VOLUME
 197 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 198 {
 199         if(ch == 0) {
 200                 pcm->set_volume(0, decibel_l, decibel_r);
 201         } else if(ch == 1) {
 202                 drec->set_volume(0, decibel_l, decibel_r);
 203         } else if(ch == 2) {
 204                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 205                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 206                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 207         }
 208 }
 209 #endif
 210
 211 // ----------------------------------------------------------------------------
 212 // user interface
 213 // ----------------------------------------------------------------------------
 214
 215 void VM::play_tape(int drv, const _TCHAR* file_path)
 216 {
 217         drec->play_tape(file_path);
 218 //      drec->set_remote(true);
 219 }
 220
 221 void VM::rec_tape(int drv, const _TCHAR* file_path)
 222 {
 223         drec->rec_tape(file_path);
 224 //      drec->set_remote(true);
 225 }
 226
 227 void VM::close_tape(int drv)
 228 {
 229         emu->lock_vm();
 230         drec->close_tape();
 231         emu->unlock_vm();
 232 //      drec->set_remote(false);
 233 }
 234
 235 bool VM::is_tape_inserted(int drv)
 236 {
 237         return drec->is_tape_inserted();
 238 }
 239
 240 bool VM::is_tape_playing(int drv)
 241 {
 242         return drec->is_tape_playing();
 243 }
 244
 245 bool VM::is_tape_recording(int drv)
 246 {
 247         return drec->is_tape_recording();
 248 }
 249
 250 int VM::get_tape_position(int drv)
 251 {
 252         return drec->get_tape_position();
 253 }
 254
 255 const _TCHAR* VM::get_tape_message(int drv)
 256 {
 257         return drec->get_message();
 258 }
 259
 260 void VM::push_play(int drv)
 261 {
 262         drec->set_ff_rew(0);
 263         drec->set_remote(true);
 264 }
 265
 266 void VM::push_stop(int drv)
 267 {
 268         drec->set_remote(false);
 269 }
 270
 271 void VM::push_fast_forward(int drv)
 272 {
 273         drec->set_ff_rew(1);
 274         drec->set_remote(true);
 275 }
 276
 277 void VM::push_fast_rewind(int drv)
 278 {
 279         drec->set_ff_rew(-1);
 280         drec->set_remote(true);
 281 }
 282
 283 bool VM::is_frame_skippable()
 284 {
 285         return event->is_frame_skippable();
 286 }
 287
 288 void VM::update_config()
 289 {
 290         for(DEVICE* device = first_device; device; device = device->next_device) {
 291                 device->update_config();
 292         }
 293 }
 294
 295 #define STATE_VERSION   3
 296
 297 #include "../../statesub.h"
 298 #include "../../qt/gui/csp_logger.h"
 299 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 300
 301 void VM::decl_state(void)
 302 {
 303         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_2001_HEAD")), csp_logger);
 304         DECL_STATE_ENTRY_MULTI(void, ram, sizeof(ram));
 305         for(DEVICE* device = first_device; device; device = device->next_device) {
 306                 device->decl_state();
 307         }
 308 }
 309
 310 void VM::save_state(FILEIO* state_fio)
 311 {
 312         //state_fio->FputUint32(STATE_VERSION);
 313
 314         if(state_entry != NULL) {
 315                 state_entry->save_state(state_fio);
 316         }
 317         for(DEVICE* device = first_device; device; device = device->next_device) {
 318                 device->save_state(state_fio);
 319         }
 320         //state_fio->Fwrite(ram, sizeof(ram), 1);
 321 }
 322
 323 bool VM::load_state(FILEIO* state_fio)
 324 {
 325         //if(state_fio->FgetUint32() != STATE_VERSION) {
 326         //      return false;
 327         //}
 328         bool mb = false;
 329         if(state_entry != NULL) {
 330                 mb = state_entry->load_state(state_fio);
 331         }
 332         if(!mb) {
 333                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 334                 return false;
 335         }
 336         for(DEVICE* device = first_device; device; device = device->next_device) {
 337                 if(!device->load_state(state_fio)) {
 338                         return false;
 339                 }
 340         }
 341         //state_fio->Fread(ram, sizeof(ram), 1);
 342         return true;
 343 }
 344