source/src/vm/pc98ha/pc98ha.cpp

   1 /*
   2         NEC PC-98LT Emulator 'ePC-98LT'
   3         NEC PC-98HA Emulator 'eHANDY98'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2008.06.09 -
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "pc98ha.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../beep.h"
  17 #include "../i8251.h"
  18 #include "../i8253.h"
  19 #include "../i8255.h"
  20 #include "../i8259.h"
  21 //#if defined(HAS_V30) || defined(HAS_I86)
  22 //# include "../i86.h"
  23 //#else
  24 # include "../i286.h"
  25 //#endif
  26 #include "../io.h"
  27 #include "../noise.h"
  28 #include "../not.h"
  29 //#include "../pcpr201.h"
  30 #include "../prnfile.h"
  31 #ifdef _PC98HA
  32 #include "../upd4991a.h"
  33 #else
  34 #include "../upd1990a.h"
  35 #endif
  36 #include "../upd71071.h"
  37 #include "../upd765a.h"
  38
  39 #ifdef USE_DEBUGGER
  40 #include "../debugger.h"
  41 #endif
  42
  43 #include "bios.h"
  44 #include "calendar.h"
  45 #include "floppy.h"
  46 #include "keyboard.h"
  47 #include "memory.h"
  48 #include "note.h"
  49
  50 // ----------------------------------------------------------------------------
  51 // initialize
  52 // ----------------------------------------------------------------------------
  53
  54 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  55 {
  56         // create devices
  57         first_device = last_device = NULL;
  58         dummy = new DEVICE(this, emu);  // must be 1st device
  59         event = new EVENT(this, emu);   // must be 2nd device
  60         dummy->set_device_name(_T("1st Dummy"));
  61
  62         beep = new BEEP(this, emu);
  63         sio_rs = new I8251(this, emu);  // for rs232c
  64         sio_rs->set_device_name(_T("8251 SIO (RS-232C)"));
  65         sio_kbd = new I8251(this, emu); // for keyboard
  66         sio_kbd->set_device_name(_T("8251 SIO (Keyboard)"));
  67         pit = new I8253(this, emu);     // V50 internal
  68         pio_sys = new I8255(this, emu); // for system port
  69         pio_sys->set_device_name(_T("8255 PIO (System)"));
  70         pio_prn = new I8255(this, emu); // for printer
  71         pio_prn->set_device_name(_T("8251 PIO (Printer)"));
  72         pic = new I8259(this, emu);     // V50 internal
  73 //#if defined(HAS_V30) || defined(HAS_I86)
  74 //      cpu = new I86(this, emu);       // V50
  75 //#else
  76         cpu = new I286(this, emu);      // V50
  77 //#endif
  78         io = new IO(this, emu);
  79         not_busy = new NOT(this, emu);
  80 #ifdef _PC98HA
  81         rtc = new UPD4991A(this, emu);
  82 #else
  83         rtc = new UPD1990A(this, emu);
  84 #endif
  85         dma = new UPD71071(this, emu);  // V50 internal
  86         fdc = new UPD765A(this, emu);
  87         fdc->set_context_noise_seek(new NOISE(this, emu));
  88         fdc->set_context_noise_head_down(new NOISE(this, emu));
  89         fdc->set_context_noise_head_up(new NOISE(this, emu));
  90         pic->set_device_name(_T("V50 PIC(i8259 COMPATIBLE)"));
  91         cpu->set_device_name(_T("CPU (V50)"));
  92         not_busy->set_device_name(_T("NOT GATE(PRINTER BUSY)"));
  93
  94         if(config.printer_type == 0) {
  95                 printer = new PRNFILE(this, emu);
  96 //      } else if(config.printer_type == 1) {
  97 //              printer = new PCPR201(this, emu);
  98         } else {
  99                 printer = dummy;
 100         }
 101
 102         bios = new BIOS(this, emu);
 103         calendar = new CALENDAR(this, emu);
 104         floppy = new FLOPPY(this, emu);
 105         keyboard = new KEYBOARD(this, emu);
 106         memory = new MEMORY(this, emu);
 107         note = new NOTE(this, emu);
 108         // set contexts
 109         event->set_context_cpu(cpu);
 110         event->set_context_sound(beep);
 111         event->set_context_sound(fdc->get_context_noise_seek());
 112         event->set_context_sound(fdc->get_context_noise_head_down());
 113         event->set_context_sound(fdc->get_context_noise_head_up());
 114 //???   sio_rs->set_context_rxrdy(pic, SIG_I8259_IR4, 1);
 115         sio_kbd->set_context_rxrdy(pic, SIG_I8259_IR1, 1);
 116 //      sio_kbd->set_context_out(keyboard, SIG_KEYBOARD_RECV);
 117         pit->set_context_ch0(pic, SIG_I8259_IR0, 1);
 118         pit->set_context_ch1(pic, SIG_I8259_IR2, 1);
 119 #ifdef _PC98HA
 120         pit->set_constant_clock(0, 2457600);
 121         pit->set_constant_clock(1, 2457600);
 122         pit->set_constant_clock(2, 2457600);
 123 #else
 124         pit->set_constant_clock(0, 1996800);
 125         pit->set_constant_clock(1, 300);        // ???
 126         pit->set_constant_clock(2, 1996800);
 127 #endif
 128         pio_sys->set_context_port_c(beep, SIG_BEEP_MUTE, 8, 0);
 129         pio_prn->set_context_port_a(printer, SIG_PRINTER_DATA, 0xff, 0);
 130         pio_prn->set_context_port_c(printer, SIG_PRINTER_STROBE, 0x80, 0);
 131         if(config.printer_type == 0) {
 132                 PRNFILE *prnfile = (PRNFILE *)printer;
 133                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 134 //      } else if(config.printer_type == 1) {
 135 //              PRNFILE *pcpr201 = (PCPR201 *)printer;
 136 //              pcpr201->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 137         }
 138         not_busy->set_context_out(pio_prn, SIG_I8255_PORT_B, 4);
 139         pic->set_context_cpu(cpu);
 140 #ifdef _PC98LT
 141         rtc->set_context_dout(pio_sys, SIG_I8255_PORT_B, 1);
 142 #endif
 143         dma->set_context_memory(memory);
 144         dma->set_context_ch2(fdc);      // 1MB
 145         dma->set_context_ch3(fdc);      // 640KB
 146         fdc->set_context_irq(pic, SIG_I8259_IR6, 1);
 147         fdc->set_context_drq(dma, SIG_UPD71071_CH3, 1);
 148         fdc->raise_irq_when_media_changed = true;
 149
 150         bios->set_context_fdc(fdc);
 151         calendar->set_context_rtc(rtc);
 152         floppy->set_context_fdc(fdc);
 153         keyboard->set_context_sio(sio_kbd);
 154         note->set_context_pic(pic);
 155
 156         // cpu bus
 157         cpu->set_context_bios(bios);
 158         cpu->set_context_mem(memory);
 159         cpu->set_context_io(io);
 160         cpu->set_context_intr(pic);
 161 #ifdef SINGLE_MODE_DMA
 162         cpu->set_context_dma(dma);
 163 #endif
 164 #ifdef USE_DEBUGGER
 165         cpu->set_context_debugger(new DEBUGGER(this, emu));
 166 #endif
 167
 168         // i/o bus
 169         io->set_iomap_alias_rw(0x00, pic, 0);
 170         io->set_iomap_alias_rw(0x02, pic, 1);
 171 #ifdef _PC98HA
 172         io->set_iomap_range_rw(0x22, 0x23, calendar);
 173 #else
 174         io->set_iomap_single_w(0x20, calendar);
 175 #endif
 176         io->set_iomap_alias_rw(0x30, sio_rs, 0);
 177         io->set_iomap_alias_rw(0x32, sio_rs, 1);
 178         io->set_iomap_alias_rw(0x31, pio_sys, 0);
 179         io->set_iomap_alias_rw(0x33, pio_sys, 1);
 180         io->set_iomap_alias_rw(0x35, pio_sys, 2);
 181         io->set_iomap_alias_rw(0x37, pio_sys, 3);
 182         io->set_iomap_alias_rw(0x40, pio_prn, 0);
 183         io->set_iomap_alias_rw(0x42, pio_prn, 1);
 184         io->set_iomap_alias_rw(0x44, pio_prn, 2);
 185         io->set_iomap_alias_rw(0x46, pio_prn, 3);
 186         io->set_iomap_alias_rw(0x41, sio_kbd, 0);
 187         io->set_iomap_alias_rw(0x43, sio_kbd, 1);
 188         io->set_iomap_alias_rw(0x71, pit, 0);
 189         io->set_iomap_alias_rw(0x73, pit, 1);
 190         io->set_iomap_alias_rw(0x75, pit, 2);
 191         io->set_iomap_alias_rw(0x77, pit, 3);
 192 #if defined(_PC98LT) || defined(DOCKING_STATION)
 193         io->set_iomap_single_r(0xc8, floppy);
 194         io->set_iomap_single_rw(0xca, floppy);
 195         io->set_iomap_single_rw(0xcc, floppy);
 196         io->set_iomap_single_rw(0xbe, floppy);
 197 #endif
 198         io->set_iomap_range_rw(0xe0, 0xef, dma);
 199         io->set_iomap_single_w(0x8e1, memory);
 200         io->set_iomap_single_w(0x8e3, memory);
 201         io->set_iomap_single_w(0x8e5, memory);
 202         io->set_iomap_single_w(0x8e7, memory);
 203         io->set_iomap_single_rw(0x0c10, memory);
 204         io->set_iomap_single_w(0x0e8e, memory);
 205         io->set_iomap_single_w(0x1e8e, memory);
 206         io->set_iomap_single_rw(0x4c10, memory);
 207         io->set_iomap_single_rw(0x8c10, memory);
 208         io->set_iomap_single_rw(0xcc10, memory);
 209         io->set_iomap_single_rw(0x0810, note);
 210         io->set_iomap_single_rw(0x0812, note);
 211         io->set_iomap_single_r(0x0f8e, note);
 212         io->set_iomap_single_r(0x5e8e, note);
 213         io->set_iomap_single_rw(0x8810, note);
 214         io->set_iomap_single_w(0xc810, note);
 215
 216         // initialize all devices
 217 #if defined(__GIT_REPO_VERSION)
 218         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 219 #endif
 220         for(DEVICE* device = first_device; device; device = device->next_device) {
 221                 device->initialize();
 222         }
 223         decl_state();
 224 }
 225
 226 VM::~VM()
 227 {
 228         // delete all devices
 229         for(DEVICE* device = first_device; device;) {
 230                 DEVICE *next_device = device->next_device;
 231                 device->release();
 232                 delete device;
 233                 device = next_device;
 234         }
 235 }
 236
 237 DEVICE* VM::get_device(int id)
 238 {
 239         for(DEVICE* device = first_device; device; device = device->next_device) {
 240                 if(device->this_device_id == id) {
 241                         return device;
 242                 }
 243         }
 244         return NULL;
 245 }
 246
 247 // ----------------------------------------------------------------------------
 248 // drive virtual machine
 249 // ----------------------------------------------------------------------------
 250
 251 void VM::reset()
 252 {
 253         // reset all devices
 254         for(DEVICE* device = first_device; device; device = device->next_device) {
 255                 device->reset();
 256         }
 257
 258         // initial device settings
 259         pio_sys->write_signal(SIG_I8255_PORT_A, 0xe3, 0xff);
 260         pio_sys->write_signal(SIG_I8255_PORT_B, 0xe0, 0xff);
 261 #ifdef _PC98HA
 262         pio_prn->write_signal(SIG_I8255_PORT_B, 0xde, 0xff);
 263 #else
 264         pio_prn->write_signal(SIG_I8255_PORT_B, 0xfc, 0xff);
 265 #endif
 266         beep->write_signal(SIG_BEEP_ON, 1, 1);
 267         beep->write_signal(SIG_BEEP_MUTE, 1, 1);
 268 }
 269
 270 void VM::run()
 271 {
 272         event->drive();
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // debugger
 277 // ----------------------------------------------------------------------------
 278
 279 #ifdef USE_DEBUGGER
 280 DEVICE *VM::get_cpu(int index)
 281 {
 282         if(index == 0) {
 283                 return cpu;
 284         }
 285         return NULL;
 286 }
 287 #endif
 288
 289 // ----------------------------------------------------------------------------
 290 // draw screen
 291 // ----------------------------------------------------------------------------
 292
 293 void VM::draw_screen()
 294 {
 295         memory->draw_screen();
 296 }
 297
 298 // ----------------------------------------------------------------------------
 299 // soud manager
 300 // ----------------------------------------------------------------------------
 301
 302 void VM::initialize_sound(int rate, int samples)
 303 {
 304         // init sound manager
 305         event->initialize_sound(rate, samples);
 306
 307         // init sound gen
 308         beep->initialize_sound(rate, 2400, 8000);
 309 }
 310
 311 uint16_t* VM::create_sound(int* extra_frames)
 312 {
 313         return event->create_sound(extra_frames);
 314 }
 315
 316 int VM::get_sound_buffer_ptr()
 317 {
 318         return event->get_sound_buffer_ptr();
 319 }
 320
 321 #ifdef USE_SOUND_VOLUME
 322 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 323 {
 324         if(ch == 0) {
 325                 beep->set_volume(0, decibel_l, decibel_r);
 326         } else if(ch == 1) {
 327                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 328                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 329                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 330         }
 331 }
 332 #endif
 333
 334 // ----------------------------------------------------------------------------
 335 // notify key
 336 // ----------------------------------------------------------------------------
 337
 338 void VM::key_down(int code, bool repeat)
 339 {
 340         keyboard->key_down(code);
 341 }
 342
 343 void VM::key_up(int code)
 344 {
 345         keyboard->key_up(code);
 346 }
 347
 348 bool VM::get_caps_locked()
 349 {
 350         return keyboard->get_caps_locked();
 351 }
 352
 353 bool VM::get_kana_locked()
 354 {
 355         return keyboard->get_kana_locked();
 356 }
 357
 358 // ----------------------------------------------------------------------------
 359 // user interface
 360 // ----------------------------------------------------------------------------
 361
 362 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 363 {
 364         fdc->open_disk(drv, file_path, bank);
 365 }
 366
 367 void VM::close_floppy_disk(int drv)
 368 {
 369         fdc->close_disk(drv);
 370 }
 371
 372 bool VM::is_floppy_disk_inserted(int drv)
 373 {
 374         return fdc->is_disk_inserted(drv);
 375 }
 376
 377 void VM::is_floppy_disk_protected(int drv, bool value)
 378 {
 379         fdc->is_disk_protected(drv, value);
 380 }
 381
 382 bool VM::is_floppy_disk_protected(int drv)
 383 {
 384         return fdc->is_disk_protected(drv);
 385 }
 386
 387 uint32_t VM::is_floppy_disk_accessed()
 388 {
 389         return fdc->read_signal(0);
 390 }
 391
 392 bool VM::is_frame_skippable()
 393 {
 394         return event->is_frame_skippable();
 395 }
 396
 397 void VM::update_config()
 398 {
 399         for(DEVICE* device = first_device; device; device = device->next_device) {
 400                 device->update_config();
 401         }
 402 }
 403
 404 #define STATE_VERSION   6
 405
 406 #include "../../statesub.h"
 407 #include "../../qt/gui/csp_logger.h"
 408 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 409
 410 void VM::decl_state(void)
 411 {
 412 #if defined(_PC98HA)
 413         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_98HA_HEAD")), csp_logger);
 414 #elif defined(_PC98LT)
 415         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_98LT_HEAD")), csp_logger);
 416 #else
 417         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_98LT_SERIES_HEAD")), csp_logger);
 418 #endif
 419
 420         for(DEVICE* device = first_device; device; device = device->next_device) {
 421                 device->decl_state();
 422         }
 423 }
 424
 425 void VM::save_state(FILEIO* state_fio)
 426 {
 427         //state_fio->FputUint32(STATE_VERSION);
 428
 429         if(state_entry != NULL) {
 430                 state_entry->save_state(state_fio);
 431         }
 432         for(DEVICE* device = first_device; device; device = device->next_device) {
 433                 device->save_state(state_fio);
 434         }
 435 }
 436
 437 bool VM::load_state(FILEIO* state_fio)
 438 {
 439         //if(state_fio->FgetUint32() != STATE_VERSION) {
 440         //      return false;
 441         //}
 442         bool mb = false;
 443         if(state_entry != NULL) {
 444                 mb = state_entry->load_state(state_fio);
 445         }
 446         if(!mb) {
 447                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 448                 return false;
 449         }
 450         for(DEVICE* device = first_device; device; device = device->next_device) {
 451                 if(!device->load_state(state_fio)) {
 452                         return false;
 453                 }
 454         }
 455         return true;
 456 }
 457