source/src/vm/mz2800/mz2800.cpp

   1 /*
   2         SHARP MZ-2800 Emulator 'EmuZ-2800'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2007.08.13 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "mz2800.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../disk.h"
  16 #include "../harddisk.h"
  17 #include "../i8253.h"
  18 #include "../i8255.h"
  19 #include "../i8259.h"
  20 #include "../i286.h"
  21 #include "../io.h"
  22 #include "../mb8877.h"
  23 #include "../mz1p17.h"
  24 #include "../noise.h"
  25 #include "../not.h"
  26 #include "../pcm1bit.h"
  27 //#include "../pcpr201.h"
  28 #include "../prnfile.h"
  29 #include "../rp5c01.h"
  30 #include "../scsi_hdd.h"
  31 #include "../scsi_host.h"
  32 #include "../upd71071.h"
  33 #include "../ym2203.h"
  34 #include "../z80pio.h"
  35 #include "../z80sio.h"
  36
  37 #ifdef USE_DEBUGGER
  38 #include "../debugger.h"
  39 #endif
  40
  41 #include "crtc.h"
  42 #include "floppy.h"
  43 #include "joystick.h"
  44 #include "keyboard.h"
  45 #include "./memory.h"
  46 #include "mouse.h"
  47 #include "printer.h"
  48 #include "reset.h"
  49 #include "sasi.h"
  50 #include "serial.h"
  51 #include "sysport.h"
  52
  53 using MZ2800::CRTC;
  54 using MZ2800::FLOPPY;
  55 using MZ2800::JOYSTICK;
  56 using MZ2800::KEYBOARD;
  57 using MZ2800::MEMORY;
  58 using MZ2800::MOUSE;
  59 using MZ2800::PRINTER;
  60 using MZ2800::RESET;
  61 using MZ2800::SASI;
  62 using MZ2800::SERIAL;
  63 using MZ2800::SYSPORT;
  64
  65 // ----------------------------------------------------------------------------
  66 // initialize
  67 // ----------------------------------------------------------------------------
  68
  69 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  70 {
  71         // create devices
  72         first_device = last_device = NULL;
  73         dummy = new DEVICE(this, emu);  // must be 1st device
  74         event = new EVENT(this, emu);   // must be 2nd device
  75         dummy->set_device_name(_T("1st Dummy"));
  76
  77         cpu = new I286(this, emu);
  78         pit = new I8253(this, emu);
  79         pio0 = new I8255(this, emu);
  80         pic = new I8259(this, emu);
  81         io = new IO(this, emu);
  82         fdc = new MB8877(this, emu);
  83         fdc->set_context_noise_seek(new NOISE(this, emu));
  84         fdc->set_context_noise_head_down(new NOISE(this, emu));
  85         fdc->set_context_noise_head_up(new NOISE(this, emu));
  86         not_busy = new NOT(this, emu);
  87         not_busy->set_device_name(_T("NOT GATE(PRINTER BUSY)"));
  88
  89         pcm = new PCM1BIT(this, emu);
  90         rtc = new RP5C01(this, emu);    // RP-5C15
  91         sasi_host = new SCSI_HOST(this, emu);
  92         for(int i = 0; i < USE_HARD_DISK; i++) {
  93                 sasi_hdd[i] = new SASI_HDD(this, emu);
  94                 sasi_hdd[i]->set_device_name(_T("SASI Hard Disk Drive #%d"), i + 1);
  95                 sasi_hdd[i]->scsi_id = i;
  96                 sasi_hdd[i]->set_disk_handler(0, new HARDDISK(emu));
  97                 sasi_hdd[i]->set_context_interface(sasi_host);
  98                 sasi_hdd[i]->bytes_per_sec = 32 * 1024; // 32KB/s
  99                 sasi_host->set_context_target(sasi_hdd[i]);
 100         }
 101         dma = new UPD71071(this, emu);
 102         opn = new YM2203(this, emu);
 103         pio1 = new Z80PIO(this, emu);
 104         sio = new Z80SIO(this, emu);
 105
 106         crtc = new CRTC(this, emu);
 107         floppy = new FLOPPY(this, emu);
 108         joystick = new JOYSTICK(this, emu);
 109         keyboard = new KEYBOARD(this, emu);
 110         memory = new MEMORY(this, emu);
 111         mouse = new MOUSE(this, emu);
 112         printer = new PRINTER(this, emu);
 113         rst = new RESET(this, emu);
 114         sasi = new SASI(this, emu);
 115         serial = new SERIAL(this, emu);
 116         sysport = new SYSPORT(this, emu);
 117
 118         // set contexts
 119         event->set_context_cpu(cpu);
 120         event->set_context_sound(opn);
 121         event->set_context_sound(pcm);
 122         event->set_context_sound(fdc->get_context_noise_seek());
 123         event->set_context_sound(fdc->get_context_noise_head_down());
 124         event->set_context_sound(fdc->get_context_noise_head_up());
 125
 126         pit->set_constant_clock(0, 31250);
 127         pit->set_constant_clock(2, 31250);
 128         pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
 129         pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);
 130         pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);
 131         pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);
 132         pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);
 133         pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
 134         pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
 135         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 136         //pcm->set_realtime_render(true);
 137
 138
 139         pic->set_context_cpu(cpu);
 140         fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);
 141         fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);
 142         not_busy->set_context_out(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 1);
 143         rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);
 144         rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
 145         sasi_host->set_context_irq(sasi, SIG_SASI_IRQ, 1);
 146         sasi_host->set_context_drq(sasi, SIG_SASI_DRQ, 1);
 147         dma->set_context_memory(memory);
 148         dma->set_context_ch0(sasi);
 149         dma->set_context_ch1(fdc);
 150         dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);
 151         opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);
 152         opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
 153         opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
 154         pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
 155         pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);
 156         sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);
 157         sio->set_context_dtr(1, mouse, SIG_MOUSE_DTR, 1);
 158
 159         crtc->set_context_pic(pic);
 160         crtc->set_context_pio(pio0);
 161         crtc->set_vram_ptr(memory->get_vram());
 162         crtc->set_tvram_ptr(memory->get_tvram());
 163         crtc->set_kanji_ptr(memory->get_kanji());
 164         crtc->set_pcg_ptr(memory->get_pcg());
 165         floppy->set_context_fdc(fdc);
 166         keyboard->set_context_pio0(pio0);
 167         keyboard->set_context_pio1(pio1);
 168         memory->set_context_crtc(crtc);
 169         mouse->set_context_sio(sio);
 170         if(config.printer_type == 0) {
 171                 PRNFILE *prnfile = new PRNFILE(this, emu);
 172                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 173                 printer->set_context_prn(prnfile);
 174         } else if(config.printer_type == 1) {
 175                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 176                 mz1p17->mode = MZ1P17_MODE_MZ1;
 177                 mz1p17->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 178                 printer->set_context_prn(mz1p17);
 179 //      } else if(config.printer_type == 2) {
 180 //              PCPR201 *pcpr201 = new PCPR201(this, emu);
 181 //              pcpr201->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 182 //              printer->set_context_prn(pcpr201);
 183         } else {
 184                 printer->set_context_prn(dummy);
 185         }
 186         sasi->set_context_host(sasi_host);
 187         sasi->set_context_dma(dma);
 188         sasi->set_context_pic(pic);
 189         serial->set_context_sio(sio);
 190         sysport->set_context_pit(pit);
 191         sysport->set_context_sio(sio);
 192
 193         // cpu bus
 194         cpu->set_context_mem(memory);
 195         cpu->set_context_io(io);
 196         cpu->set_context_intr(pic);
 197 #ifdef SINGLE_MODE_DMA
 198         cpu->set_context_dma(dma);
 199 #endif
 200 #ifdef USE_DEBUGGER
 201         cpu->set_context_debugger(new DEBUGGER(this, emu));
 202 #endif
 203
 204         // i/o bus
 205         io->set_iomap_range_rw(0x70, 0x7f, dma);
 206         io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);
 207         io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);
 208         io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);
 209         io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);
 210         io->set_iomap_range_rw(0x8c, 0x8d, memory);
 211         io->set_iovalue_single_r(0x8e, 0xff);   // dipswitch
 212         io->set_flipflop_single_rw(0x8f, 0x00); // shut
 213         io->set_iomap_range_rw(0xa0, 0xa3, serial);
 214         for(uint32_t p = 0xae; p <= 0x1fae; p += 0x100) {
 215                 io->set_iomap_single_w(p, crtc);
 216         }
 217         io->set_iomap_range_rw(0xa4, 0xa5, sasi);
 218         io->set_iomap_range_rw(0xb0, 0xb3, serial);
 219         io->set_iomap_single_r(0xbe, sysport);
 220         io->set_iomap_range_rw(0xc8, 0xc9, opn);
 221         io->set_iovalue_single_r(0xca, 0x7f);   // voice communication ???
 222         for(uint32_t p = 0xcc; p <= 0xfcc; p += 0x100) {
 223                 io->set_iomap_alias_rw(p, rtc, p >> 8);
 224         }
 225         io->set_iomap_single_w(0xcd, serial);
 226         io->set_iomap_single_rw(0xce, memory);
 227         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 228         io->set_iomap_range_w(0xdc, 0xdf, floppy);
 229         io->set_iomap_range_rw(0xe0, 0xe3, pio0);
 230         io->set_iomap_range_rw(0xe4, 0xe7, pit);
 231         io->set_iomap_range_rw(0xe8, 0xeb, pio1);
 232         io->set_iomap_single_rw(0xef, joystick);
 233 //      io->set_iomap_range_w(0xf0, 0xf3, sysport);
 234         io->set_iomap_single_w(0x170, crtc);
 235         io->set_iomap_single_w(0x172, crtc);
 236         io->set_iomap_single_w(0x174, crtc);
 237         io->set_iomap_single_w(0x176, crtc);
 238         io->set_iomap_range_w(0x178, 0x17b, crtc);
 239         io->set_iomap_range_rw(0x1fe, 0x1ff, printer);
 240         io->set_iomap_single_w(0x270, crtc);
 241         io->set_iomap_single_w(0x272, crtc);
 242         io->set_iomap_single_rw(0x274, memory);
 243
 244         // initialize all devices
 245 #if defined(__GIT_REPO_VERSION)
 246         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 247 #endif
 248         for(DEVICE* device = first_device; device; device = device->next_device) {
 249                 device->initialize();
 250         }
 251 }
 252
 253 VM::~VM()
 254 {
 255         // delete all devices
 256         for(DEVICE* device = first_device; device;) {
 257                 DEVICE *next_device = device->next_device;
 258                 device->release();
 259                 delete device;
 260                 device = next_device;
 261         }
 262         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 263                 if(!(config.last_hard_disk_path[drv][0] != _T('\0') && FILEIO::IsFileExisting(config.last_hard_disk_path[drv]))) {
 264                         create_local_path(config.last_hard_disk_path[drv], _MAX_PATH, _T("SASI%d.DAT"), drv);
 265                 }
 266         }
 267 }
 268
 269 DEVICE* VM::get_device(int id)
 270 {
 271         for(DEVICE* device = first_device; device; device = device->next_device) {
 272                 if(device->this_device_id == id) {
 273                         return device;
 274                 }
 275         }
 276         return NULL;
 277 }
 278
 279 // ----------------------------------------------------------------------------
 280 // drive virtual machine
 281 // ----------------------------------------------------------------------------
 282
 283 void VM::reset()
 284 {
 285         // reset all devices
 286         for(DEVICE* device = first_device; device; device = device->next_device) {
 287                 device->reset();
 288         }
 289         // temporary fix...
 290         for(DEVICE* device = first_device; device; device = device->next_device) {
 291                 device->reset();
 292         }
 293
 294         // set initial port status
 295         pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);
 296         opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);
 297 }
 298
 299 void VM::cpu_reset()
 300 {
 301         cpu->reset();
 302 }
 303
 304 void VM::run()
 305 {
 306         event->drive();
 307 }
 308
 309 // ----------------------------------------------------------------------------
 310 // debugger
 311 // ----------------------------------------------------------------------------
 312
 313 #ifdef USE_DEBUGGER
 314 DEVICE *VM::get_cpu(int index)
 315 {
 316         if(index == 0) {
 317                 return cpu;
 318         }
 319         return NULL;
 320 }
 321 #endif
 322
 323 // ----------------------------------------------------------------------------
 324 // draw screen
 325 // ----------------------------------------------------------------------------
 326
 327 void VM::draw_screen()
 328 {
 329         crtc->draw_screen();
 330 }
 331
 332 // ----------------------------------------------------------------------------
 333 // soud manager
 334 // ----------------------------------------------------------------------------
 335
 336 void VM::initialize_sound(int rate, int samples)
 337 {
 338         // init sound manager
 339         event->initialize_sound(rate, samples);
 340
 341         // init sound gen
 342         opn->initialize_sound(rate, 2000000, samples, 0, -8);
 343         pcm->initialize_sound(rate, 4096);
 344 }
 345
 346 uint16_t* VM::create_sound(int* extra_frames)
 347 {
 348         return event->create_sound(extra_frames);
 349 }
 350
 351 int VM::get_sound_buffer_ptr()
 352 {
 353         return event->get_sound_buffer_ptr();
 354 }
 355
 356 #ifdef USE_SOUND_VOLUME
 357 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 358 {
 359         if(ch == 0) {
 360                 opn->set_volume(0, decibel_l, decibel_r);
 361         } else if(ch == 1) {
 362                 opn->set_volume(1, decibel_l, decibel_r);
 363         } else if(ch == 2) {
 364                 pcm->set_volume(0, decibel_l, decibel_r);
 365         } else if(ch == 3) {
 366                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 367                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 368                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 369         }
 370 }
 371 #endif
 372
 373 // ----------------------------------------------------------------------------
 374 // user interface
 375 // ----------------------------------------------------------------------------
 376
 377 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 378 {
 379         fdc->open_disk(drv, file_path, bank);
 380
 381         if(fdc->get_media_type(drv) == MEDIA_TYPE_2DD) {
 382                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2D) {
 383                         fdc->set_drive_type(drv, DRIVE_TYPE_2DD);
 384                 }
 385         } else if(fdc->get_media_type(drv) == MEDIA_TYPE_2D) {
 386                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2DD) {
 387                         fdc->set_drive_type(drv, DRIVE_TYPE_2D);
 388                 }
 389         }
 390 }
 391
 392 void VM::close_floppy_disk(int drv)
 393 {
 394         fdc->close_disk(drv);
 395 }
 396
 397 bool VM::is_floppy_disk_inserted(int drv)
 398 {
 399         return fdc->is_disk_inserted(drv);
 400 }
 401
 402 void VM::is_floppy_disk_protected(int drv, bool value)
 403 {
 404         fdc->is_disk_protected(drv, value);
 405 }
 406
 407 bool VM::is_floppy_disk_protected(int drv)
 408 {
 409         return fdc->is_disk_protected(drv);
 410 }
 411
 412 uint32_t VM::is_floppy_disk_accessed()
 413 {
 414         return fdc->read_signal(0);
 415 }
 416
 417 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 418 {
 419         if(drv < USE_HARD_DISK) {
 420                 sasi_hdd[drv]->open(0, file_path, 1024);
 421         }
 422 }
 423
 424 void VM::close_hard_disk(int drv)
 425 {
 426         if(drv < USE_HARD_DISK) {
 427                 sasi_hdd[drv]->close(0);
 428         }
 429 }
 430
 431 bool VM::is_hard_disk_inserted(int drv)
 432 {
 433         if(drv < USE_HARD_DISK) {
 434                 return sasi_hdd[drv]->mounted(0);
 435         }
 436         return false;
 437 }
 438
 439 uint32_t VM::is_hard_disk_accessed()
 440 {
 441         uint32_t status = 0;
 442
 443         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 444                 if(sasi_hdd[drv]->accessed(0)) {
 445                         status |= 1 << drv;
 446                 }
 447         }
 448         return status;
 449 }
 450
 451 bool VM::is_frame_skippable()
 452 {
 453         return event->is_frame_skippable();
 454 }
 455
 456 void VM::update_config()
 457 {
 458         for(DEVICE* device = first_device; device; device = device->next_device) {
 459                 device->update_config();
 460         }
 461 }
 462
 463 #define STATE_VERSION   5
 464
 465 bool VM::process_state(FILEIO* state_fio, bool loading)
 466 {
 467         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 468                 return false;
 469         }
 470         for(DEVICE* device = first_device; device; device = device->next_device) {
 471                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 472                 // const char *name = typeid(*device).name();
 473                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 474                 const char *name = device->get_device_name();
 475                 int len = strlen(name);
 476
 477                 if(!state_fio->StateCheckInt32(len)) {
 478                         if(loading) {
 479                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 480                         }
 481                         return false;
 482                 }
 483                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 484                         if(loading) {
 485                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 486                         }
 487                         return false;
 488                 }
 489                 if(!device->process_state(state_fio, loading)) {
 490                         if(loading) {
 491                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 492                         }
 493                         return false;
 494                 }
 495         }
 496         // Machine specified.
 497         return true;
 498 }