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         for(DEVICE* device = first_device; device; device = device->next_device) {
  87                 device->initialize();
  88         }
  89         decl_state();
  90 }
  91
  92 VM::~VM()
  93 {
  94         // delete all devices
  95         for(DEVICE* device = first_device; device;) {
  96                 DEVICE *next_device = device->next_device;
  97                 device->release();
  98                 delete device;
  99                 device = next_device;
 100         }
 101 }
 102
 103 DEVICE* VM::get_device(int id)
 104 {
 105         for(DEVICE* device = first_device; device; device = device->next_device) {
 106                 if(device->this_device_id == id) {
 107                         return device;
 108                 }
 109         }
 110         return NULL;
 111 }
 112
 113 // ----------------------------------------------------------------------------
 114 // drive virtual machine
 115 // ----------------------------------------------------------------------------
 116
 117 void VM::reset()
 118 {
 119         // load basic rom
 120         if(boot_mode != config.boot_mode) {
 121                 if(boot_mode != -1) {
 122                         memory->save_backup();
 123                 }
 124                 if(config.boot_mode == 0) {
 125                         memory->load_rom_image(_T("BASIC_V2.NES"));
 126                         ppu->load_rom_image(_T("BASIC_V2.NES"));
 127                 } else if(config.boot_mode == 1) {
 128                         memory->load_rom_image(_T("BASIC_V3.NES"));
 129                         ppu->load_rom_image(_T("BASIC_V3.NES"));
 130                 } else if(config.boot_mode == 2) {
 131                         memory->load_rom_image(_T("PLAYBOX_BASIC.NES"));
 132                         ppu->load_rom_image(_T("PLAYBOX_BASIC.NES"));
 133                 } else if(config.boot_mode == 3) {
 134                         memory->load_rom_image(_T("VRC7_BASIC_V2.NES"));
 135                         ppu->load_rom_image(_T("VRC7_BASIC_V2.NES"));
 136                 } else if(config.boot_mode == 4) {
 137                         memory->load_rom_image(_T("VRC7_BASIC_V3.NES"));
 138                         ppu->load_rom_image(_T("VRC7_BASIC_V3.NES"));
 139                 } else if(config.boot_mode == 5) {
 140                         memory->load_rom_image(_T("MMC5_BASIC_V3.NES"));
 141                         ppu->load_rom_image(_T("MMC5_BASIC_V3.NES"));
 142                 }
 143                 boot_mode = config.boot_mode;
 144         }
 145
 146         // reset all devices
 147         for(DEVICE* device = first_device; device; device = device->next_device) {
 148                 device->reset();
 149         }
 150 }
 151
 152 void VM::run()
 153 {
 154         event->drive();
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // debugger
 159 // ----------------------------------------------------------------------------
 160
 161 #ifdef USE_DEBUGGER
 162 DEVICE *VM::get_cpu(int index)
 163 {
 164         if(index == 0) {
 165                 return cpu;
 166         }
 167         return NULL;
 168 }
 169 #endif
 170
 171 // ----------------------------------------------------------------------------
 172 // draw screen
 173 // ----------------------------------------------------------------------------
 174
 175 void VM::draw_screen()
 176 {
 177         ppu->draw_screen();
 178 }
 179
 180 // ----------------------------------------------------------------------------
 181 // soud manager
 182 // ----------------------------------------------------------------------------
 183
 184 void VM::initialize_sound(int rate, int samples)
 185 {
 186         // init sound manager
 187         event->initialize_sound(rate, samples);
 188
 189         // init sound gen
 190         apu->initialize_sound(rate, samples);
 191         opll->initialize_sound(rate, 3579545, samples);
 192 }
 193
 194 uint16_t* VM::create_sound(int* extra_frames)
 195 {
 196         return event->create_sound(extra_frames);
 197 }
 198
 199 int VM::get_sound_buffer_ptr()
 200 {
 201         return event->get_sound_buffer_ptr();
 202 }
 203
 204 #ifdef USE_SOUND_VOLUME
 205 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 206 {
 207         if(ch == 0) {
 208                 apu->set_volume(0, decibel_l, decibel_r);
 209         } else if(ch == 1) {
 210                 opll->set_volume(0, decibel_l, decibel_r);
 211         } else if(ch == 2) {
 212                 drec->set_volume(0, decibel_l, decibel_r);
 213         } else if(ch == 3) {
 214                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 215                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 216                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 217         }
 218 }
 219 #endif
 220
 221 // ----------------------------------------------------------------------------
 222 // user interface
 223 // ----------------------------------------------------------------------------
 224
 225 void VM::play_tape(int drv, const _TCHAR* file_path)
 226 {
 227         drec->play_tape(file_path);
 228 //      drec->set_remote(true);
 229 }
 230
 231 void VM::rec_tape(int drv, const _TCHAR* file_path)
 232 {
 233         drec->rec_tape(file_path);
 234 //      drec->set_remote(true);
 235 }
 236
 237 void VM::close_tape(int drv)
 238 {
 239         emu->lock_vm();
 240         drec->close_tape();
 241         emu->unlock_vm();
 242 //      drec->set_remote(false);
 243 }
 244
 245 bool VM::is_tape_inserted(int drv)
 246 {
 247         return drec->is_tape_inserted();
 248 }
 249
 250 bool VM::is_tape_playing(int drv)
 251 {
 252         return drec->is_tape_playing();
 253 }
 254
 255 bool VM::is_tape_recording(int drv)
 256 {
 257         return drec->is_tape_recording();
 258 }
 259
 260 int VM::get_tape_position(int drv)
 261 {
 262         return drec->get_tape_position();
 263 }
 264
 265 const _TCHAR* VM::get_tape_message(int drv)
 266 {
 267         return drec->get_message();
 268 }
 269
 270 void VM::push_play(int drv)
 271 {
 272         drec->set_ff_rew(0);
 273         drec->set_remote(true);
 274 }
 275
 276 void VM::push_stop(int drv)
 277 {
 278         drec->set_remote(false);
 279 }
 280
 281 void VM::push_fast_forward(int drv)
 282 {
 283         drec->set_ff_rew(1);
 284         drec->set_remote(true);
 285 }
 286
 287 void VM::push_fast_rewind(int drv)
 288 {
 289         drec->set_ff_rew(-1);
 290         drec->set_remote(true);
 291 }
 292
 293 bool VM::is_frame_skippable()
 294 {
 295         return event->is_frame_skippable();
 296 }
 297
 298 void VM::update_config()
 299 {
 300         if(boot_mode != config.boot_mode) {
 301                 // boot mode is changed !!!
 302 //              boot_mode = config.boot_mode;
 303                 reset();
 304         } else {
 305                 for(DEVICE* device = first_device; device; device = device->next_device) {
 306                         device->update_config();
 307                 }
 308         }
 309 }
 310
 311 #define STATE_VERSION   5
 312
 313 #include "../../statesub.h"
 314 #include "../../qt/gui/csp_logger.h"
 315 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 316
 317 void VM::decl_state(void)
 318 {
 319         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::FAMILY_BASIC_HEAD")), csp_logger);
 320         DECL_STATE_ENTRY_INT32(boot_mode);
 321
 322         for(DEVICE* device = first_device; device; device = device->next_device) {
 323                 device->decl_state();
 324         }
 325 }
 326 void VM::save_state(FILEIO* state_fio)
 327 {
 328         //state_fio->FputUint32(STATE_VERSION);
 329
 330         if(state_entry != NULL) {
 331                 state_entry->save_state(state_fio);
 332         }
 333         for(DEVICE* device = first_device; device; device = device->next_device) {
 334                 device->save_state(state_fio);
 335         }
 336         //state_fio->FputInt32(boot_mode); // Move to decl_state().
 337 }
 338
 339 bool VM::load_state(FILEIO* state_fio)
 340 {
 341         //if(state_fio->FgetUint32() != STATE_VERSION) {
 342         //      return false;
 343         //}
 344         bool mb = false;
 345         if(state_entry != NULL) {
 346                 mb = state_entry->load_state(state_fio);
 347         }
 348         if(!mb) {
 349                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 350                 return false;
 351         }
 352         for(DEVICE* device = first_device; device; device = device->next_device) {
 353                 if(!device->load_state(state_fio)) {
 354                         return false;
 355                 }
 356         }
 357         //boot_mode = state_fio->FgetInt32();
 358         return true;
 359 }
 360