source/src/vm/familybasic/familybasic.cpp

   1 /*
   2         Nintendo Family BASIC Emulator 'eFamilyBASIC'
   3
   4         Origin : nester
   5         Author : Takeda.Toshiya
   6         Date   : 2010.08.11-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "familybasic.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../datarec.h"
  17 #include "../m6502.h"
  18 #include "../noise.h"
  19 #include "../ym2413.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "memory.h"
  26 #include "apu.h"
  27 #include "ppu.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // initialize
  31 // ----------------------------------------------------------------------------
  32
  33 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  34 {
  35         // check configs
  36 //      boot_mode = config.boot_mode;
  37         boot_mode = -1;
  38
  39         // create devices
  40         first_device = last_device = NULL;
  41         dummy = new DEVICE(this, emu);  // must be 1st device
  42         event = new EVENT(this, emu);   // must be 2nd device
  43
  44         drec = new DATAREC(this, emu);
  45         drec->set_context_noise_play(new NOISE(this, emu));
  46         drec->set_context_noise_stop(new NOISE(this, emu));
  47         drec->set_context_noise_fast(new NOISE(this, emu));
  48 //      cpu = new M6502(this, emu);
  49         opll = new YM2413(this, emu);
  50
  51         memory = new MEMORY(this, emu);
  52         apu = new APU(this, emu);
  53         ppu = new PPU(this, emu);
  54         cpu = new N2A03(this, emu); // cpu shoud be reset after other device
  55
  56         dummy->set_device_name(_T("1st Dummy"));
  57
  58         // set contexts
  59         event->set_context_cpu(cpu);
  60         event->set_context_sound(apu);
  61         event->set_context_sound(drec);
  62         event->set_context_sound(opll);
  63         event->set_context_sound(drec->get_context_noise_play());
  64         event->set_context_sound(drec->get_context_noise_stop());
  65         event->set_context_sound(drec->get_context_noise_fast());
  66
  67         memory->set_context_cpu(cpu);
  68         memory->set_context_apu(apu);
  69         memory->set_context_ppu(ppu);
  70         memory->set_context_drec(drec);
  71         memory->set_context_opll(opll);
  72         memory->set_spr_ram_ptr(ppu->get_spr_ram());
  73         apu->set_context_cpu(cpu);
  74         apu->set_context_memory(memory);
  75         ppu->set_context_cpu(cpu);
  76         ppu->set_context_memory(memory);
  77
  78         // cpu bus
  79         cpu->set_context_mem(memory);
  80         cpu->set_context_intr(dummy);
  81 #ifdef USE_DEBUGGER
  82         cpu->set_context_debugger(new DEBUGGER(this, emu));
  83 #endif
  84
  85         // initialize all devices
  86 #if defined(__GIT_REPO_VERSION)
  87         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  88 #endif
  89         for(DEVICE* device = first_device; device; device = device->next_device) {
  90                 device->initialize();
  91         }
  92         decl_state();
  93 }
  94
  95 VM::~VM()
  96 {
  97         // delete all devices
  98         for(DEVICE* device = first_device; device;) {
  99                 DEVICE *next_device = device->next_device;
 100                 device->release();
 101                 delete device;
 102                 device = next_device;
 103         }
 104 }
 105
 106 DEVICE* VM::get_device(int id)
 107 {
 108         for(DEVICE* device = first_device; device; device = device->next_device) {
 109                 if(device->this_device_id == id) {
 110                         return device;
 111                 }
 112         }
 113         return NULL;
 114 }
 115
 116 // ----------------------------------------------------------------------------
 117 // drive virtual machine
 118 // ----------------------------------------------------------------------------
 119
 120 void VM::reset()
 121 {
 122         // load basic rom
 123         if(boot_mode != config.boot_mode) {
 124                 if(boot_mode != -1) {
 125                         memory->save_backup();
 126                 }
 127                 if(config.boot_mode == 0) {
 128                         memory->load_rom_image(_T("BASIC_V2.NES"));
 129                         ppu->load_rom_image(_T("BASIC_V2.NES"));
 130                 } else if(config.boot_mode == 1) {
 131                         memory->load_rom_image(_T("BASIC_V3.NES"));
 132                         ppu->load_rom_image(_T("BASIC_V3.NES"));
 133                 } else if(config.boot_mode == 2) {
 134                         memory->load_rom_image(_T("PLAYBOX_BASIC.NES"));
 135                         ppu->load_rom_image(_T("PLAYBOX_BASIC.NES"));
 136                 } else if(config.boot_mode == 3) {
 137                         memory->load_rom_image(_T("VRC7_BASIC_V2.NES"));
 138                         ppu->load_rom_image(_T("VRC7_BASIC_V2.NES"));
 139                 } else if(config.boot_mode == 4) {
 140                         memory->load_rom_image(_T("VRC7_BASIC_V3.NES"));
 141                         ppu->load_rom_image(_T("VRC7_BASIC_V3.NES"));
 142                 } else if(config.boot_mode == 5) {
 143                         memory->load_rom_image(_T("MMC5_BASIC_V3.NES"));
 144                         ppu->load_rom_image(_T("MMC5_BASIC_V3.NES"));
 145                 }
 146                 boot_mode = config.boot_mode;
 147         }
 148
 149         // reset all devices
 150         for(DEVICE* device = first_device; device; device = device->next_device) {
 151                 device->reset();
 152         }
 153 }
 154
 155 void VM::run()
 156 {
 157         event->drive();
 158 }
 159
 160 // ----------------------------------------------------------------------------
 161 // debugger
 162 // ----------------------------------------------------------------------------
 163
 164 #ifdef USE_DEBUGGER
 165 DEVICE *VM::get_cpu(int index)
 166 {
 167         if(index == 0) {
 168                 return cpu;
 169         }
 170         return NULL;
 171 }
 172 #endif
 173
 174 // ----------------------------------------------------------------------------
 175 // draw screen
 176 // ----------------------------------------------------------------------------
 177
 178 void VM::draw_screen()
 179 {
 180         ppu->draw_screen();
 181 }
 182
 183 // ----------------------------------------------------------------------------
 184 // soud manager
 185 // ----------------------------------------------------------------------------
 186
 187 void VM::initialize_sound(int rate, int samples)
 188 {
 189         // init sound manager
 190         event->initialize_sound(rate, samples);
 191
 192         // init sound gen
 193         apu->initialize_sound(rate, samples);
 194         opll->initialize_sound(rate, 3579545, samples);
 195 }
 196
 197 uint16_t* VM::create_sound(int* extra_frames)
 198 {
 199         return event->create_sound(extra_frames);
 200 }
 201
 202 int VM::get_sound_buffer_ptr()
 203 {
 204         return event->get_sound_buffer_ptr();
 205 }
 206
 207 #ifdef USE_SOUND_VOLUME
 208 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 209 {
 210         if(ch == 0) {
 211                 apu->set_volume(0, decibel_l, decibel_r);
 212         } else if(ch == 1) {
 213                 opll->set_volume(0, decibel_l, decibel_r);
 214         } else if(ch == 2) {
 215                 drec->set_volume(0, decibel_l, decibel_r);
 216         } else if(ch == 3) {
 217                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 218                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 219                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 220         }
 221 }
 222 #endif
 223
 224 // ----------------------------------------------------------------------------
 225 // user interface
 226 // ----------------------------------------------------------------------------
 227
 228 void VM::play_tape(int drv, const _TCHAR* file_path)
 229 {
 230         drec->play_tape(file_path);
 231 //      drec->set_remote(true);
 232 }
 233
 234 void VM::rec_tape(int drv, const _TCHAR* file_path)
 235 {
 236         drec->rec_tape(file_path);
 237 //      drec->set_remote(true);
 238 }
 239
 240 void VM::close_tape(int drv)
 241 {
 242         emu->lock_vm();
 243         drec->close_tape();
 244         emu->unlock_vm();
 245 //      drec->set_remote(false);
 246 }
 247
 248 bool VM::is_tape_inserted(int drv)
 249 {
 250         return drec->is_tape_inserted();
 251 }
 252
 253 bool VM::is_tape_playing(int drv)
 254 {
 255         return drec->is_tape_playing();
 256 }
 257
 258 bool VM::is_tape_recording(int drv)
 259 {
 260         return drec->is_tape_recording();
 261 }
 262
 263 int VM::get_tape_position(int drv)
 264 {
 265         return drec->get_tape_position();
 266 }
 267
 268 const _TCHAR* VM::get_tape_message(int drv)
 269 {
 270         return drec->get_message();
 271 }
 272
 273 void VM::push_play(int drv)
 274 {
 275         drec->set_ff_rew(0);
 276         drec->set_remote(true);
 277 }
 278
 279 void VM::push_stop(int drv)
 280 {
 281         drec->set_remote(false);
 282 }
 283
 284 void VM::push_fast_forward(int drv)
 285 {
 286         drec->set_ff_rew(1);
 287         drec->set_remote(true);
 288 }
 289
 290 void VM::push_fast_rewind(int drv)
 291 {
 292         drec->set_ff_rew(-1);
 293         drec->set_remote(true);
 294 }
 295
 296 bool VM::is_frame_skippable()
 297 {
 298         return event->is_frame_skippable();
 299 }
 300
 301 void VM::update_config()
 302 {
 303         if(boot_mode != config.boot_mode) {
 304                 // boot mode is changed !!!
 305 //              boot_mode = config.boot_mode;
 306                 reset();
 307         } else {
 308                 for(DEVICE* device = first_device; device; device = device->next_device) {
 309                         device->update_config();
 310                 }
 311         }
 312 }
 313
 314 #define STATE_VERSION   5
 315
 316 #include "../../statesub.h"
 317 #include "../../qt/gui/csp_logger.h"
 318 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 319
 320 void VM::decl_state(void)
 321 {
 322         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::FAMILY_BASIC_HEAD")), csp_logger);
 323         DECL_STATE_ENTRY_INT32(boot_mode);
 324
 325         for(DEVICE* device = first_device; device; device = device->next_device) {
 326                 device->decl_state();
 327         }
 328 }
 329 void VM::save_state(FILEIO* state_fio)
 330 {
 331         //state_fio->FputUint32(STATE_VERSION);
 332
 333         if(state_entry != NULL) {
 334                 state_entry->save_state(state_fio);
 335         }
 336         for(DEVICE* device = first_device; device; device = device->next_device) {
 337                 device->save_state(state_fio);
 338         }
 339         //state_fio->FputInt32(boot_mode); // Move to decl_state().
 340 }
 341
 342 bool VM::load_state(FILEIO* state_fio)
 343 {
 344         //if(state_fio->FgetUint32() != STATE_VERSION) {
 345         //      return false;
 346         //}
 347         bool mb = false;
 348         if(state_entry != NULL) {
 349                 mb = state_entry->load_state(state_fio);
 350         }
 351         if(!mb) {
 352                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 353                 return false;
 354         }
 355         for(DEVICE* device = first_device; device; device = device->next_device) {
 356                 if(!device->load_state(state_fio)) {
 357                         return false;
 358                 }
 359         }
 360         //boot_mode = state_fio->FgetInt32();
 361         return true;
 362 }
 363