source/src/vm/m5/m5.cpp

   1 /*
   2         SORD m5 Emulator 'Emu5'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2006.08.18 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "m5.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../io.h"
  17 #include "../memory.h"
  18 #include "../noise.h"
  19 #include "../sn76489an.h"
  20 #include "../tms9918a.h"
  21 #include "../z80.h"
  22 #include "../z80ctc.h"
  23
  24 #ifdef USE_DEBUGGER
  25 #include "../debugger.h"
  26 #endif
  27
  28 #include "cmt.h"
  29 #include "keyboard.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         memory = new MEMORY(this, emu);
  49         psg = new SN76489AN(this, emu);
  50         vdp = new TMS9918A(this, emu);
  51         cpu = new Z80(this, emu);
  52         ctc = new Z80CTC(this, emu);
  53
  54         cmt = new CMT(this, emu);
  55         key = new KEYBOARD(this, emu);
  56         // set contexts
  57         event->set_context_cpu(cpu);
  58         event->set_context_sound(psg);
  59         event->set_context_sound(drec);
  60         event->set_context_sound(drec->get_context_noise_play());
  61         event->set_context_sound(drec->get_context_noise_stop());
  62         event->set_context_sound(drec->get_context_noise_fast());
  63
  64         drec->set_context_ear(cmt, SIG_CMT_IN, 1);
  65         drec->set_context_end(cmt, SIG_CMT_EOT, 1);
  66         vdp->set_context_irq(ctc, SIG_Z80CTC_TRIG_3, 1);
  67         cmt->set_context_drec(drec);
  68
  69         // cpu bus
  70         cpu->set_context_mem(memory);
  71         cpu->set_context_io(io);
  72         cpu->set_context_intr(ctc);
  73 #ifdef USE_DEBUGGER
  74         cpu->set_context_debugger(new DEBUGGER(this, emu));
  75 #endif
  76
  77         // z80 family daisy chain
  78         ctc->set_context_intr(cpu, 0);
  79
  80         // memory bus
  81         memset(ram, 0, sizeof(ram));
  82         memset(ext, 0, sizeof(ext));
  83         memset(ipl, 0xff, sizeof(ipl));
  84         memset(cart, 0xff, sizeof(cart));
  85
  86         memory->read_bios(_T("IPL.ROM"), ipl, sizeof(ipl));
  87
  88         memory->set_memory_r(0x0000, 0x1fff, ipl);
  89         memory->set_memory_r(0x2000, 0x6fff, cart);
  90         memory->set_memory_rw(0x7000, 0x7fff, ram);
  91         memory->set_memory_rw(0x8000, 0xffff, ext);
  92
  93         // i/o bus
  94         io->set_iomap_range_rw(0x00, 0x03, ctc);
  95         io->set_iomap_range_rw(0x10, 0x11, vdp);
  96         io->set_iomap_single_w(0x20, psg);
  97         io->set_iomap_range_r(0x30, 0x37, key);
  98         io->set_iomap_single_w(0x40, cmt);
  99         io->set_iomap_single_rw(0x50, cmt);
 100
 101         // FD5 floppy drive uint
 102         subcpu = NULL;
 103 #ifdef USE_DEBUGGER
 104 //      subcpu->set_context_debugger(new DEBUGGER(this, emu));
 105 #endif
 106
 107         // initialize all devices
 108 #if defined(__GIT_REPO_VERSION)
 109         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 110 #endif
 111         for(DEVICE* device = first_device; device; device = device->next_device) {
 112                 device->initialize();
 113         }
 114         decl_state();
 115         inserted = false;
 116 }
 117
 118 VM::~VM()
 119 {
 120         // delete all devices
 121         for(DEVICE* device = first_device; device;) {
 122                 DEVICE *next_device = device->next_device;
 123                 device->release();
 124                 delete device;
 125                 device = next_device;
 126         }
 127 }
 128
 129 DEVICE* VM::get_device(int id)
 130 {
 131         for(DEVICE* device = first_device; device; device = device->next_device) {
 132                 if(device->this_device_id == id) {
 133                         return device;
 134                 }
 135         }
 136         return NULL;
 137 }
 138
 139 // ----------------------------------------------------------------------------
 140 // drive virtual machine
 141 // ----------------------------------------------------------------------------
 142
 143 void VM::reset()
 144 {
 145         // reset all devices
 146         for(DEVICE* device = first_device; device; device = device->next_device) {
 147                 device->reset();
 148         }
 149 }
 150
 151 void VM::run()
 152 {
 153         event->drive();
 154 }
 155
 156 // ----------------------------------------------------------------------------
 157 // debugger
 158 // ----------------------------------------------------------------------------
 159
 160 #ifdef USE_DEBUGGER
 161 DEVICE *VM::get_cpu(int index)
 162 {
 163         if(index == 0) {
 164                 return cpu;
 165         } else if(index == 1) {
 166                 return subcpu;
 167         }
 168         return NULL;
 169 }
 170 #endif
 171
 172 // ----------------------------------------------------------------------------
 173 // draw screen
 174 // ----------------------------------------------------------------------------
 175
 176 void VM::draw_screen()
 177 {
 178         vdp->draw_screen();
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // soud manager
 183 // ----------------------------------------------------------------------------
 184
 185 void VM::initialize_sound(int rate, int samples)
 186 {
 187         // init sound manager
 188         event->initialize_sound(rate, samples);
 189
 190         // init sound gen
 191         psg->initialize_sound(rate, 3579545, 8000);
 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                 psg->set_volume(0, decibel_l, decibel_r);
 209         } else if(ch == 1) {
 210                 drec->set_volume(0, decibel_l, decibel_r);
 211         } else if(ch == 2) {
 212                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 213                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 214                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 215         }
 216 }
 217 #endif
 218
 219 // ----------------------------------------------------------------------------
 220 // user interface
 221 // ----------------------------------------------------------------------------
 222
 223 void VM::open_cart(int drv, const _TCHAR* file_path)
 224 {
 225         if(drv == 0) {
 226                 memset(cart, 0xff, sizeof(cart));
 227                 inserted = memory->read_image(file_path, cart, sizeof(cart));
 228                 reset();
 229         }
 230 }
 231
 232 void VM::close_cart(int drv)
 233 {
 234         if(drv == 0) {
 235                 memset(cart, 0xff, sizeof(cart));
 236                 inserted = false;
 237                 reset();
 238         }
 239 }
 240
 241 bool VM::is_cart_inserted(int drv)
 242 {
 243         if(drv == 0) {
 244                 return inserted;
 245         } else {
 246                 return false;
 247         }
 248 }
 249
 250 void VM::play_tape(int drv, const _TCHAR* file_path)
 251 {
 252         drec->play_tape(file_path);
 253 //      drec->set_remote(true);
 254 }
 255
 256 void VM::rec_tape(int drv, const _TCHAR* file_path)
 257 {
 258         drec->rec_tape(file_path);
 259 //      drec->set_remote(true);
 260 }
 261
 262 void VM::close_tape(int drv)
 263 {
 264         emu->lock_vm();
 265         drec->close_tape();
 266         emu->unlock_vm();
 267 //      drec->set_remote(false);
 268 }
 269
 270 bool VM::is_tape_inserted(int drv)
 271 {
 272         return drec->is_tape_inserted();
 273 }
 274
 275 bool VM::is_tape_playing(int drv)
 276 {
 277         return drec->is_tape_playing();
 278 }
 279
 280 bool VM::is_tape_recording(int drv)
 281 {
 282         return drec->is_tape_recording();
 283 }
 284
 285 int VM::get_tape_position(int drv)
 286 {
 287         return drec->get_tape_position();
 288 }
 289
 290 const _TCHAR* VM::get_tape_message(int drv)
 291 {
 292         return drec->get_message();
 293 }
 294
 295 void VM::push_play(int drv)
 296 {
 297         drec->set_ff_rew(0);
 298         drec->set_remote(true);
 299 }
 300
 301 void VM::push_stop(int drv)
 302 {
 303         drec->set_remote(false);
 304 }
 305
 306 void VM::push_fast_forward(int drv)
 307 {
 308         drec->set_ff_rew(1);
 309         drec->set_remote(true);
 310 }
 311
 312 void VM::push_fast_rewind(int drv)
 313 {
 314         drec->set_ff_rew(-1);
 315         drec->set_remote(true);
 316 }
 317
 318 bool VM::is_frame_skippable()
 319 {
 320         return event->is_frame_skippable();
 321 }
 322
 323 void VM::update_config()
 324 {
 325         for(DEVICE* device = first_device; device; device = device->next_device) {
 326                 device->update_config();
 327         }
 328 }
 329
 330 #define STATE_VERSION   3
 331
 332 #include "../../statesub.h"
 333 #include "../../qt/gui/csp_logger.h"
 334 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 335
 336 void VM::decl_state(void)
 337 {
 338         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::M5_HEAD")), csp_logger);
 339         DECL_STATE_ENTRY_1D_ARRAY(ram, sizeof(ram));
 340         DECL_STATE_ENTRY_1D_ARRAY(ext, sizeof(ext));
 341         DECL_STATE_ENTRY_BOOL(inserted);
 342
 343         for(DEVICE* device = first_device; device; device = device->next_device) {
 344                 device->decl_state();
 345         }
 346 }
 347
 348 void VM::save_state(FILEIO* state_fio)
 349 {
 350         //state_fio->FputUint32(STATE_VERSION);
 351
 352         if(state_entry != NULL) {
 353                 state_entry->save_state(state_fio);
 354         }
 355         for(DEVICE* device = first_device; device; device = device->next_device) {
 356                 device->save_state(state_fio);
 357         }
 358         //state_fio->Fwrite(ram, sizeof(ram), 1);
 359         //state_fio->Fwrite(ext, sizeof(ext), 1);
 360         //state_fio->FputBool(inserted);
 361 }
 362
 363 bool VM::load_state(FILEIO* state_fio)
 364 {
 365         //if(state_fio->FgetUint32() != STATE_VERSION) {
 366         //      return false;
 367         //}
 368         bool mb = false;
 369         if(state_entry != NULL) {
 370                 mb = state_entry->load_state(state_fio);
 371         }
 372         if(!mb) {
 373                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 374                 return false;
 375         }
 376         for(DEVICE* device = first_device; device; device = device->next_device) {
 377                 if(!device->load_state(state_fio)) {
 378                         return false;
 379                 }
 380         }
 381         //state_fio->Fread(ram, sizeof(ram), 1);
 382         //state_fio->Fread(ext, sizeof(ext), 1);
 383         //inserted = state_fio->FgetBool();
 384         return true;
 385 }
 386