source/src/vm/rx78/rx78.cpp

   1 /*
   2         BANDAI RX-78 Emulator 'eRX-78'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2006.08.21 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "rx78.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../io.h"
  17 #include "../noise.h"
  18 #include "../sn76489an.h"
  19 #include "../z80.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "cmt.h"
  26 #include "keyboard.h"
  27 #include "memory.h"
  28 #include "printer.h"
  29 #include "vdp.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // initialize
  33 // ----------------------------------------------------------------------------
  34
  35 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  36 {
  37         // create devices
  38         first_device = last_device = NULL;
  39         dummy = new DEVICE(this, emu);  // must be 1st device
  40         event = new EVENT(this, emu);   // must be 2nd device
  41         dummy->set_device_name(_T("1st Dummy"));
  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         io = new IO(this, emu);
  48         psg = new SN76489AN(this, emu);
  49         cpu = new Z80(this, emu);
  50
  51         cmt = new CMT(this, emu);
  52         key = new KEYBOARD(this, emu);
  53         memory = new MEMORY(this, emu);
  54         prt = new PRINTER(this, emu);
  55         vdp = new VDP(this, emu);
  56
  57         // set contexts
  58         event->set_context_cpu(cpu);
  59         event->set_context_sound(psg);
  60         event->set_context_sound(drec);
  61         event->set_context_sound(drec->get_context_noise_play());
  62         event->set_context_sound(drec->get_context_noise_stop());
  63         event->set_context_sound(drec->get_context_noise_fast());
  64
  65         drec->set_context_ear(cmt, SIG_CMT_IN, 1);
  66         cmt->set_context_drec(drec);
  67         vdp->set_context_cpu(cpu);
  68         vdp->set_vram_ptr(memory->get_vram());
  69
  70         // cpu bus
  71         cpu->set_context_mem(memory);
  72         cpu->set_context_io(io);
  73         cpu->set_context_intr(dummy);
  74 #ifdef USE_DEBUGGER
  75         cpu->set_context_debugger(new DEBUGGER(this, emu));
  76 #endif
  77
  78         // i/o bus
  79         io->set_iomap_range_rw(0xe2, 0xe3, prt);
  80         io->set_iomap_single_rw(0xf0, cmt);
  81         io->set_iomap_range_w(0xf1, 0xf2, memory);
  82         io->set_iomap_single_rw(0xf4, key);
  83         io->set_iomap_range_w(0xf5, 0xfc, vdp);
  84         io->set_iomap_single_w(0xfe, vdp);
  85         io->set_iomap_single_w(0xff, psg);
  86
  87         // initialize all devices
  88 #if defined(__GIT_REPO_VERSION)
  89         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  90 #endif
  91         for(DEVICE* device = first_device; device; device = device->next_device) {
  92                 device->initialize();
  93         }
  94         decl_state();
  95 }
  96
  97 VM::~VM()
  98 {
  99         // delete all devices
 100         for(DEVICE* device = first_device; device;) {
 101                 DEVICE *next_device = device->next_device;
 102                 device->release();
 103                 delete device;
 104                 device = next_device;
 105         }
 106 }
 107
 108 DEVICE* VM::get_device(int id)
 109 {
 110         for(DEVICE* device = first_device; device; device = device->next_device) {
 111                 if(device->this_device_id == id) {
 112                         return device;
 113                 }
 114         }
 115         return NULL;
 116 }
 117
 118 // ----------------------------------------------------------------------------
 119 // debugger
 120 // ----------------------------------------------------------------------------
 121
 122 #ifdef USE_DEBUGGER
 123 DEVICE *VM::get_cpu(int index)
 124 {
 125         if(index == 0) {
 126                 return cpu;
 127         }
 128         return NULL;
 129 }
 130 #endif
 131
 132 // ----------------------------------------------------------------------------
 133 // drive virtual machine
 134 // ----------------------------------------------------------------------------
 135
 136 void VM::reset()
 137 {
 138         // reset all devices
 139         for(DEVICE* device = first_device; device; device = device->next_device) {
 140                 device->reset();
 141         }
 142 }
 143
 144 void VM::run()
 145 {
 146         event->drive();
 147 }
 148
 149 // ----------------------------------------------------------------------------
 150 // draw screen
 151 // ----------------------------------------------------------------------------
 152
 153 void VM::draw_screen()
 154 {
 155         vdp->draw_screen();
 156 }
 157
 158 // ----------------------------------------------------------------------------
 159 // soud manager
 160 // ----------------------------------------------------------------------------
 161
 162 void VM::initialize_sound(int rate, int samples)
 163 {
 164         // init sound manager
 165         event->initialize_sound(rate, samples);
 166
 167         // init sound gen
 168         psg->initialize_sound(rate, 3579545, 8000);
 169 }
 170
 171 uint16_t* VM::create_sound(int* extra_frames)
 172 {
 173         return event->create_sound(extra_frames);
 174 }
 175
 176 int VM::get_sound_buffer_ptr()
 177 {
 178         return event->get_sound_buffer_ptr();
 179 }
 180
 181 #ifdef USE_SOUND_VOLUME
 182 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 183 {
 184         if(ch == 0) {
 185                 psg->set_volume(0, decibel_l, decibel_r);
 186         } else if(ch == 1) {
 187                 drec->set_volume(0, decibel_l, decibel_r);
 188         } else if(ch == 2) {
 189                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 190                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 191                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 192         }
 193 }
 194 #endif
 195
 196 // ----------------------------------------------------------------------------
 197 // user interface
 198 // ----------------------------------------------------------------------------
 199
 200 void VM::open_cart(int drv, const _TCHAR* file_path)
 201 {
 202         if(drv == 0) {
 203                 memory->open_cart(file_path);
 204                 reset();
 205         }
 206 }
 207
 208 void VM::close_cart(int drv)
 209 {
 210         if(drv == 0) {
 211                 memory->close_cart();
 212                 reset();
 213         }
 214 }
 215
 216 bool VM::is_cart_inserted(int drv)
 217 {
 218         if(drv == 0) {
 219                 return memory->is_cart_inserted();
 220         } else {
 221                 return false;
 222         }
 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         for(DEVICE* device = first_device; device; device = device->next_device) {
 301                 device->update_config();
 302         }
 303 }
 304
 305 #define STATE_VERSION   3
 306
 307 #include "../../statesub.h"
 308 #include "../../qt/gui/csp_logger.h"
 309 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 310
 311 void VM::decl_state(void)
 312 {
 313         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::RX_78_HEAD")), csp_logger);
 314         for(DEVICE* device = first_device; device; device = device->next_device) {
 315                 device->decl_state();
 316         }
 317 }
 318
 319 void VM::save_state(FILEIO* state_fio)
 320 {
 321         //state_fio->FputUint32(STATE_VERSION);
 322
 323         if(state_entry != NULL) {
 324                 state_entry->save_state(state_fio);
 325         }
 326         for(DEVICE* device = first_device; device; device = device->next_device) {
 327                 device->save_state(state_fio);
 328         }
 329 }
 330
 331 bool VM::load_state(FILEIO* state_fio)
 332 {
 333         //if(state_fio->FgetUint32() != STATE_VERSION) {
 334         //      return false;
 335         //}
 336         bool mb = false;
 337         if(state_entry != NULL) {
 338                 mb = state_entry->load_state(state_fio);
 339         }
 340         if(!mb) {
 341                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 342                 return false;
 343         }
 344         for(DEVICE* device = first_device; device; device = device->next_device) {
 345                 if(!device->load_state(state_fio)) {
 346                         return false;
 347                 }
 348         }
 349         return true;
 350 }
 351