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 I80286(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 < array_length(sasi_hdd); 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]->bytes_per_sec = 32 * 1024; // 32KB/s
  97                 sasi_hdd[i]->set_context_interface(sasi_host);
  98                 sasi_host->set_context_target(sasi_hdd[i]);
  99         }
 100         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 101                 sasi_hdd[drv >> 1]->set_disk_handler(drv & 1, new HARDDISK(emu));
 102         }
 103         dma = new UPD71071(this, emu);
 104 #ifdef USE_DEBUGGER
 105         dma->set_context_debugger(new DEBUGGER(this, emu));
 106 #endif
 107         opn = new YM2203(this, emu);
 108 #ifdef USE_DEBUGGER
 109         opn->set_context_debugger(new DEBUGGER(this, emu));
 110 #endif
 111         pio1 = new Z80PIO(this, emu);
 112         sio = new Z80SIO(this, emu);
 113
 114         crtc = new CRTC(this, emu);
 115         floppy = new FLOPPY(this, emu);
 116         joystick = new JOYSTICK(this, emu);
 117         keyboard = new KEYBOARD(this, emu);
 118         memory = new MEMORY(this, emu);
 119         mouse = new MOUSE(this, emu);
 120         printer = new PRINTER(this, emu);
 121         rst = new RESET(this, emu);
 122         sasi = new SASI(this, emu);
 123         serial = new SERIAL(this, emu);
 124         sysport = new SYSPORT(this, emu);
 125
 126         // set contexts
 127         event->set_context_cpu(cpu);
 128         event->set_context_sound(opn);
 129         event->set_context_sound(pcm);
 130         event->set_context_sound(fdc->get_context_noise_seek());
 131         event->set_context_sound(fdc->get_context_noise_head_down());
 132         event->set_context_sound(fdc->get_context_noise_head_up());
 133
 134         pit->set_constant_clock(0, 31250);
 135         pit->set_constant_clock(2, 31250);
 136         pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
 137         pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);
 138         pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);
 139         pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);
 140         pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);
 141         pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
 142         pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
 143         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 144         //pcm->set_realtime_render(true);
 145
 146
 147         pic->set_context_cpu(cpu);
 148         fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);
 149         fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);
 150         not_busy->set_context_out(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 1);
 151         rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);
 152         rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
 153         sasi_host->set_context_bsy(sasi, SIG_SASI_BSY, 1);
 154         sasi_host->set_context_cd (sasi, SIG_SASI_CXD, 1);
 155         sasi_host->set_context_io (sasi, SIG_SASI_IXO, 1);
 156         sasi_host->set_context_msg(sasi, SIG_SASI_MSG, 1);
 157         sasi_host->set_context_req(sasi, SIG_SASI_REQ, 1);
 158         sasi_host->set_context_ack(sasi, SIG_SASI_ACK, 1);
 159         dma->set_context_memory(memory);
 160         dma->set_context_ch0(sasi);
 161         dma->set_context_ch1(fdc);
 162         dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);
 163         dma->set_context_tc(sasi, SIG_SASI_TC, 1);
 164         opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);
 165         opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
 166         opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
 167         pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
 168         pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);
 169         sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);
 170         sio->set_context_dtr(1, mouse, SIG_MOUSE_DTR, 1);
 171
 172         crtc->set_context_pic(pic);
 173         crtc->set_context_pio(pio0);
 174         crtc->set_vram_ptr(memory->get_vram());
 175         crtc->set_tvram_ptr(memory->get_tvram());
 176         crtc->set_kanji_ptr(memory->get_kanji());
 177         crtc->set_pcg_ptr(memory->get_pcg());
 178         floppy->set_context_fdc(fdc);
 179         keyboard->set_context_pio0(pio0);
 180         keyboard->set_context_pio1(pio1);
 181         memory->set_context_crtc(crtc);
 182         mouse->set_context_sio(sio);
 183         if(config.printer_type == 0) {
 184                 PRNFILE *prnfile = new PRNFILE(this, emu);
 185                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 186                 printer->set_context_prn(prnfile);
 187         } else if(config.printer_type == 1) {
 188                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 189                 mz1p17->mode = MZ1P17_MODE_MZ1;
 190                 mz1p17->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 191                 printer->set_context_prn(mz1p17);
 192 //      } else if(config.printer_type == 2) {
 193 //              PCPR201 *pcpr201 = new PCPR201(this, emu);
 194 //              pcpr201->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 195 //              printer->set_context_prn(pcpr201);
 196         } else {
 197                 printer->set_context_prn(dummy);
 198         }
 199         sasi->set_context_host(sasi_host);
 200         sasi->set_context_dma(dma);
 201         sasi->set_context_pic(pic);
 202         serial->set_context_sio(sio);
 203         sysport->set_context_pit(pit);
 204         sysport->set_context_sio(sio);
 205
 206         // cpu bus
 207         cpu->set_context_mem(memory);
 208         cpu->set_context_io(io);
 209         cpu->set_context_intr(pic);
 210 #ifdef SINGLE_MODE_DMA
 211         cpu->set_context_dma(dma);
 212 #endif
 213 #ifdef USE_DEBUGGER
 214         cpu->set_context_debugger(new DEBUGGER(this, emu));
 215 #endif
 216
 217         // i/o bus
 218         io->set_iomap_range_rw(0x70, 0x7f, dma);
 219         io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);
 220         io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);
 221         io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);
 222         io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);
 223         io->set_iomap_range_rw(0x8c, 0x8d, memory);
 224         io->set_iovalue_single_r(0x8e, 0xff);   // dipswitch
 225         io->set_flipflop_single_rw(0x8f, 0x00); // shut
 226         io->set_iomap_range_rw(0xa0, 0xa3, serial);
 227         for(uint32_t p = 0xae; p <= 0x1fae; p += 0x100) {
 228                 io->set_iomap_single_w(p, crtc);
 229         }
 230         io->set_iomap_range_rw(0xa4, 0xa5, sasi);
 231         io->set_iomap_range_rw(0xb0, 0xb3, serial);
 232         io->set_iomap_single_r(0xbe, sysport);
 233         io->set_iomap_range_rw(0xc8, 0xc9, opn);
 234         io->set_iovalue_single_r(0xca, 0x7f);   // voice communication ???
 235         for(uint32_t p = 0xcc; p <= 0xfcc; p += 0x100) {
 236                 io->set_iomap_alias_rw(p, rtc, p >> 8);
 237         }
 238         io->set_iomap_single_w(0xcd, serial);
 239         io->set_iomap_single_rw(0xce, memory);
 240         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 241         io->set_iomap_range_w(0xdc, 0xdf, floppy);
 242         io->set_iomap_range_rw(0xe0, 0xe3, pio0);
 243         io->set_iomap_range_rw(0xe4, 0xe7, pit);
 244         io->set_iomap_range_rw(0xe8, 0xeb, pio1);
 245         io->set_iomap_single_rw(0xef, joystick);
 246 //      io->set_iomap_range_w(0xf0, 0xf3, sysport);
 247         io->set_iomap_single_w(0x170, crtc);
 248         io->set_iomap_single_w(0x172, crtc);
 249         io->set_iomap_single_w(0x174, crtc);
 250         io->set_iomap_single_w(0x176, crtc);
 251         io->set_iomap_range_w(0x178, 0x17b, crtc);
 252         io->set_iomap_range_rw(0x1fe, 0x1ff, printer);
 253         io->set_iomap_single_w(0x270, crtc);
 254         io->set_iomap_single_w(0x272, crtc);
 255         io->set_iomap_single_rw(0x274, memory);
 256
 257         // initialize all devices
 258 #if defined(__GIT_REPO_VERSION)
 259         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 260 #endif
 261         for(DEVICE* device = first_device; device; device = device->next_device) {
 262                 device->initialize();
 263         }
 264         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 265                 if(!(config.last_hard_disk_path[drv][0] != _T('\0') && FILEIO::IsFileExisting(config.last_hard_disk_path[drv]))) {
 266                         create_local_path(config.last_hard_disk_path[drv], _MAX_PATH, _T("SASI%d.DAT"), drv);
 267                 }
 268         }
 269 }
 270
 271 VM::~VM()
 272 {
 273         // delete all devices
 274         for(DEVICE* device = first_device; device;) {
 275                 DEVICE *next_device = device->next_device;
 276                 device->release();
 277                 delete device;
 278                 device = next_device;
 279         }
 280 }
 281
 282 DEVICE* VM::get_device(int id)
 283 {
 284         for(DEVICE* device = first_device; device; device = device->next_device) {
 285                 if(device->this_device_id == id) {
 286                         return device;
 287                 }
 288         }
 289         return NULL;
 290 }
 291
 292 // ----------------------------------------------------------------------------
 293 // drive virtual machine
 294 // ----------------------------------------------------------------------------
 295
 296 void VM::reset()
 297 {
 298         // reset all devices
 299         for(DEVICE* device = first_device; device; device = device->next_device) {
 300                 device->reset();
 301         }
 302         // temporary fix...
 303         for(DEVICE* device = first_device; device; device = device->next_device) {
 304                 device->reset();
 305         }
 306
 307         // set initial port status
 308         pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);
 309         opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);
 310 }
 311
 312 void VM::cpu_reset()
 313 {
 314         cpu->reset();
 315 }
 316
 317 void VM::run()
 318 {
 319         event->drive();
 320 }
 321
 322 // ----------------------------------------------------------------------------
 323 // debugger
 324 // ----------------------------------------------------------------------------
 325
 326 #ifdef USE_DEBUGGER
 327 DEVICE *VM::get_cpu(int index)
 328 {
 329         if(index == 0) {
 330                 return cpu;
 331         }
 332         return NULL;
 333 }
 334 #endif
 335
 336 // ----------------------------------------------------------------------------
 337 // draw screen
 338 // ----------------------------------------------------------------------------
 339
 340 void VM::draw_screen()
 341 {
 342         crtc->draw_screen();
 343 }
 344
 345 // ----------------------------------------------------------------------------
 346 // soud manager
 347 // ----------------------------------------------------------------------------
 348
 349 void VM::initialize_sound(int rate, int samples)
 350 {
 351         // init sound manager
 352         event->initialize_sound(rate, samples);
 353
 354         // init sound gen
 355         opn->initialize_sound(rate, 2000000, samples, 0, -8);
 356         pcm->initialize_sound(rate, 4096);
 357 }
 358
 359 uint16_t* VM::create_sound(int* extra_frames)
 360 {
 361         return event->create_sound(extra_frames);
 362 }
 363
 364 int VM::get_sound_buffer_ptr()
 365 {
 366         return event->get_sound_buffer_ptr();
 367 }
 368
 369 #ifdef USE_SOUND_VOLUME
 370 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 371 {
 372         if(ch == 0) {
 373                 opn->set_volume(0, decibel_l, decibel_r);
 374         } else if(ch == 1) {
 375                 opn->set_volume(1, decibel_l, decibel_r);
 376         } else if(ch == 2) {
 377                 pcm->set_volume(0, decibel_l, decibel_r);
 378         } else if(ch == 3) {
 379                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 380                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 381                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 382         }
 383 }
 384 #endif
 385
 386 // ----------------------------------------------------------------------------
 387 // user interface
 388 // ----------------------------------------------------------------------------
 389
 390 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 391 {
 392         fdc->open_disk(drv, file_path, bank);
 393
 394         if(fdc->get_media_type(drv) == MEDIA_TYPE_2DD) {
 395                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2D) {
 396                         fdc->set_drive_type(drv, DRIVE_TYPE_2DD);
 397                 }
 398         } else if(fdc->get_media_type(drv) == MEDIA_TYPE_2D) {
 399                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2DD) {
 400                         fdc->set_drive_type(drv, DRIVE_TYPE_2D);
 401                 }
 402         }
 403 }
 404
 405 void VM::close_floppy_disk(int drv)
 406 {
 407         fdc->close_disk(drv);
 408 }
 409
 410 bool VM::is_floppy_disk_inserted(int drv)
 411 {
 412         return fdc->is_disk_inserted(drv);
 413 }
 414
 415 void VM::is_floppy_disk_protected(int drv, bool value)
 416 {
 417         fdc->is_disk_protected(drv, value);
 418 }
 419
 420 bool VM::is_floppy_disk_protected(int drv)
 421 {
 422         return fdc->is_disk_protected(drv);
 423 }
 424
 425 uint32_t VM::is_floppy_disk_accessed()
 426 {
 427         return fdc->read_signal(0);
 428 }
 429
 430 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 431 {
 432         if(drv < USE_HARD_DISK) {
 433                 sasi_hdd[drv >> 1]->open(drv & 1, file_path, 1024);
 434         }
 435 }
 436
 437 void VM::close_hard_disk(int drv)
 438 {
 439         if(drv < USE_HARD_DISK) {
 440                 sasi_hdd[drv >> 1]->close(drv & 1);
 441         }
 442 }
 443
 444 bool VM::is_hard_disk_inserted(int drv)
 445 {
 446         if(drv < USE_HARD_DISK) {
 447                 return sasi_hdd[drv >> 1]->mounted(drv & 1);
 448         }
 449         return false;
 450 }
 451
 452 uint32_t VM::is_hard_disk_accessed()
 453 {
 454         uint32_t status = 0;
 455
 456         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 457                 if(sasi_hdd[drv >> 1]->accessed(drv & 1)) {
 458                         status |= 1 << drv;
 459                 }
 460         }
 461         return status;
 462 }
 463
 464 bool VM::is_frame_skippable()
 465 {
 466         return event->is_frame_skippable();
 467 }
 468
 469 void VM::update_config()
 470 {
 471         for(DEVICE* device = first_device; device; device = device->next_device) {
 472                 device->update_config();
 473         }
 474 }
 475
 476 #define STATE_VERSION   8
 477
 478 bool VM::process_state(FILEIO* state_fio, bool loading)
 479 {
 480         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 481                 return false;
 482         }
 483         for(DEVICE* device = first_device; device; device = device->next_device) {
 484                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 485                 // const char *name = typeid(*device).name();
 486                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 487                 const char *name = device->get_device_name();
 488                 int len = strlen(name);
 489
 490                 if(!state_fio->StateCheckInt32(len)) {
 491                         if(loading) {
 492                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 493                         }
 494                         return false;
 495                 }
 496                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 497                         if(loading) {
 498                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 499                         }
 500                         return false;
 501                 }
 502                 if(!device->process_state(state_fio, loading)) {
 503                         if(loading) {
 504                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 505                         }
 506                         return false;
 507                 }
 508         }
 509         // Machine specified.
 510         return true;
 511 }