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 // ----------------------------------------------------------------------------
  54 // initialize
  55 // ----------------------------------------------------------------------------
  56
  57 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  58 {
  59         // create devices
  60         first_device = last_device = NULL;
  61         dummy = new DEVICE(this, emu);  // must be 1st device
  62         event = new EVENT(this, emu);   // must be 2nd device
  63         dummy->set_device_name(_T("1st Dummy"));
  64
  65         cpu = new I286(this, emu);
  66         pit = new I8253(this, emu);
  67         pio0 = new I8255(this, emu);
  68         pic = new I8259(this, emu);
  69         io = new IO(this, emu);
  70         fdc = new MB8877(this, emu);
  71         fdc->set_context_noise_seek(new NOISE(this, emu));
  72         fdc->set_context_noise_head_down(new NOISE(this, emu));
  73         fdc->set_context_noise_head_up(new NOISE(this, emu));
  74         not_busy = new NOT(this, emu);
  75         not_busy->set_device_name(_T("NOT GATE(PRINTER BUSY)"));
  76
  77         pcm = new PCM1BIT(this, emu);
  78         rtc = new RP5C01(this, emu);    // RP-5C15
  79         sasi_host = new SCSI_HOST(this, emu);
  80         for(int i = 0; i < USE_HARD_DISK; i++) {
  81                 sasi_hdd[i] = new SASI_HDD(this, emu);
  82                 sasi_hdd[i]->set_device_name(_T("SASI Hard Disk Drive #%d"), i + 1);
  83                 sasi_hdd[i]->scsi_id = i;
  84                 sasi_hdd[i]->set_disk_handler(0, new HARDDISK(emu));
  85                 sasi_hdd[i]->set_context_interface(sasi_host);
  86                 sasi_hdd[i]->bytes_per_sec = 32 * 1024; // 32KB/s
  87                 sasi_host->set_context_target(sasi_hdd[i]);
  88         }
  89         dma = new UPD71071(this, emu);
  90         opn = new YM2203(this, emu);
  91         pio1 = new Z80PIO(this, emu);
  92         sio = new Z80SIO(this, emu);
  93
  94         crtc = new CRTC(this, emu);
  95         floppy = new FLOPPY(this, emu);
  96         joystick = new JOYSTICK(this, emu);
  97         keyboard = new KEYBOARD(this, emu);
  98         memory = new MZ2800_MEMORY(this, emu);
  99         mouse = new MOUSE(this, emu);
 100         printer = new PRINTER(this, emu);
 101         rst = new RESET(this, emu);
 102         sasi = new SASI(this, emu);
 103         serial = new SERIAL(this, emu);
 104         sysport = new SYSPORT(this, emu);
 105
 106         // set contexts
 107         event->set_context_cpu(cpu);
 108         event->set_context_sound(opn);
 109         event->set_context_sound(pcm);
 110         event->set_context_sound(fdc->get_context_noise_seek());
 111         event->set_context_sound(fdc->get_context_noise_head_down());
 112         event->set_context_sound(fdc->get_context_noise_head_up());
 113
 114         pit->set_constant_clock(0, 31250);
 115         pit->set_constant_clock(2, 31250);
 116         pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
 117         pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);
 118         pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);
 119         pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);
 120         pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);
 121         pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
 122         pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
 123         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 124         //pcm->set_realtime_render(true);
 125
 126
 127         pic->set_context_cpu(cpu);
 128         fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);
 129         fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);
 130         not_busy->set_context_out(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 1);
 131         rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);
 132         rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
 133         sasi_host->set_context_irq(sasi, SIG_SASI_IRQ, 1);
 134         sasi_host->set_context_drq(sasi, SIG_SASI_DRQ, 1);
 135         dma->set_context_memory(memory);
 136         dma->set_context_ch0(sasi);
 137         dma->set_context_ch1(fdc);
 138         dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);
 139         opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);
 140         opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
 141         opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
 142         pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
 143         pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);
 144         sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);
 145         sio->set_context_dtr(1, mouse, SIG_MOUSE_DTR, 1);
 146
 147         crtc->set_context_pic(pic);
 148         crtc->set_context_pio(pio0);
 149         crtc->set_vram_ptr(memory->get_vram());
 150         crtc->set_tvram_ptr(memory->get_tvram());
 151         crtc->set_kanji_ptr(memory->get_kanji());
 152         crtc->set_pcg_ptr(memory->get_pcg());
 153         floppy->set_context_fdc(fdc);
 154         keyboard->set_context_pio0(pio0);
 155         keyboard->set_context_pio1(pio1);
 156         memory->set_context_crtc(crtc);
 157         mouse->set_context_sio(sio);
 158         if(config.printer_type == 0) {
 159                 PRNFILE *prnfile = new PRNFILE(this, emu);
 160                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 161                 printer->set_context_prn(prnfile);
 162         } else if(config.printer_type == 1) {
 163                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 164                 mz1p17->mode = MZ1P17_MODE_MZ1;
 165                 mz1p17->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 166                 printer->set_context_prn(mz1p17);
 167 //      } else if(config.printer_type == 2) {
 168 //              PCPR201 *pcpr201 = new PCPR201(this, emu);
 169 //              pcpr201->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 170 //              printer->set_context_prn(pcpr201);
 171         } else {
 172                 printer->set_context_prn(dummy);
 173         }
 174         sasi->set_context_host(sasi_host);
 175         sasi->set_context_dma(dma);
 176         sasi->set_context_pic(pic);
 177         serial->set_context_sio(sio);
 178         sysport->set_context_pit(pit);
 179         sysport->set_context_sio(sio);
 180
 181         // cpu bus
 182         cpu->set_context_mem(memory);
 183         cpu->set_context_io(io);
 184         cpu->set_context_intr(pic);
 185 #ifdef SINGLE_MODE_DMA
 186         cpu->set_context_dma(dma);
 187 #endif
 188 #ifdef USE_DEBUGGER
 189         cpu->set_context_debugger(new DEBUGGER(this, emu));
 190 #endif
 191
 192         // i/o bus
 193         io->set_iomap_range_rw(0x70, 0x7f, dma);
 194         io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);
 195         io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);
 196         io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);
 197         io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);
 198         io->set_iomap_range_rw(0x8c, 0x8d, memory);
 199         io->set_iovalue_single_r(0x8e, 0xff);   // dipswitch
 200         io->set_flipflop_single_rw(0x8f, 0x00); // shut
 201         io->set_iomap_range_rw(0xa0, 0xa3, serial);
 202         for(uint32_t p = 0xae; p <= 0x1fae; p += 0x100) {
 203                 io->set_iomap_single_w(p, crtc);
 204         }
 205         io->set_iomap_range_rw(0xa4, 0xa5, sasi);
 206         io->set_iomap_range_rw(0xb0, 0xb3, serial);
 207         io->set_iomap_single_r(0xbe, sysport);
 208         io->set_iomap_range_rw(0xc8, 0xc9, opn);
 209         io->set_iovalue_single_r(0xca, 0x7f);   // voice communication ???
 210         for(uint32_t p = 0xcc; p <= 0xfcc; p += 0x100) {
 211                 io->set_iomap_alias_rw(p, rtc, p >> 8);
 212         }
 213         io->set_iomap_single_w(0xcd, serial);
 214         io->set_iomap_single_rw(0xce, memory);
 215         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 216         io->set_iomap_range_w(0xdc, 0xdf, floppy);
 217         io->set_iomap_range_rw(0xe0, 0xe3, pio0);
 218         io->set_iomap_range_rw(0xe4, 0xe7, pit);
 219         io->set_iomap_range_rw(0xe8, 0xeb, pio1);
 220         io->set_iomap_single_rw(0xef, joystick);
 221 //      io->set_iomap_range_w(0xf0, 0xf3, sysport);
 222         io->set_iomap_single_w(0x170, crtc);
 223         io->set_iomap_single_w(0x172, crtc);
 224         io->set_iomap_single_w(0x174, crtc);
 225         io->set_iomap_single_w(0x176, crtc);
 226         io->set_iomap_range_w(0x178, 0x17b, crtc);
 227         io->set_iomap_range_rw(0x1fe, 0x1ff, printer);
 228         io->set_iomap_single_w(0x270, crtc);
 229         io->set_iomap_single_w(0x272, crtc);
 230         io->set_iomap_single_rw(0x274, memory);
 231
 232         // initialize all devices
 233 #if defined(__GIT_REPO_VERSION)
 234         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 235 #endif
 236         for(DEVICE* device = first_device; device; device = device->next_device) {
 237                 device->initialize();
 238         }
 239 }
 240
 241 VM::~VM()
 242 {
 243         // delete all devices
 244         for(DEVICE* device = first_device; device;) {
 245                 DEVICE *next_device = device->next_device;
 246                 device->release();
 247                 delete device;
 248                 device = next_device;
 249         }
 250         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 251                 if(!(config.last_hard_disk_path[drv][0] != _T('\0') && FILEIO::IsFileExisting(config.last_hard_disk_path[drv]))) {
 252                         create_local_path(config.last_hard_disk_path[drv], _MAX_PATH, _T("SASI%d.DAT"), drv);
 253                 }
 254         }
 255 }
 256
 257 DEVICE* VM::get_device(int id)
 258 {
 259         for(DEVICE* device = first_device; device; device = device->next_device) {
 260                 if(device->this_device_id == id) {
 261                         return device;
 262                 }
 263         }
 264         return NULL;
 265 }
 266
 267 // ----------------------------------------------------------------------------
 268 // drive virtual machine
 269 // ----------------------------------------------------------------------------
 270
 271 void VM::reset()
 272 {
 273         // reset all devices
 274         for(DEVICE* device = first_device; device; device = device->next_device) {
 275                 device->reset();
 276         }
 277         // temporary fix...
 278         for(DEVICE* device = first_device; device; device = device->next_device) {
 279                 device->reset();
 280         }
 281
 282         // set initial port status
 283         pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);
 284         opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);
 285 }
 286
 287 void VM::cpu_reset()
 288 {
 289         cpu->reset();
 290 }
 291
 292 void VM::run()
 293 {
 294         event->drive();
 295 }
 296
 297 // ----------------------------------------------------------------------------
 298 // debugger
 299 // ----------------------------------------------------------------------------
 300
 301 #ifdef USE_DEBUGGER
 302 DEVICE *VM::get_cpu(int index)
 303 {
 304         if(index == 0) {
 305                 return cpu;
 306         }
 307         return NULL;
 308 }
 309 #endif
 310
 311 // ----------------------------------------------------------------------------
 312 // draw screen
 313 // ----------------------------------------------------------------------------
 314
 315 void VM::draw_screen()
 316 {
 317         crtc->draw_screen();
 318 }
 319
 320 // ----------------------------------------------------------------------------
 321 // soud manager
 322 // ----------------------------------------------------------------------------
 323
 324 void VM::initialize_sound(int rate, int samples)
 325 {
 326         // init sound manager
 327         event->initialize_sound(rate, samples);
 328
 329         // init sound gen
 330         opn->initialize_sound(rate, 2000000, samples, 0, -8);
 331         pcm->initialize_sound(rate, 4096);
 332 }
 333
 334 uint16_t* VM::create_sound(int* extra_frames)
 335 {
 336         return event->create_sound(extra_frames);
 337 }
 338
 339 int VM::get_sound_buffer_ptr()
 340 {
 341         return event->get_sound_buffer_ptr();
 342 }
 343
 344 #ifdef USE_SOUND_VOLUME
 345 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 346 {
 347         if(ch == 0) {
 348                 opn->set_volume(0, decibel_l, decibel_r);
 349         } else if(ch == 1) {
 350                 opn->set_volume(1, decibel_l, decibel_r);
 351         } else if(ch == 2) {
 352                 pcm->set_volume(0, decibel_l, decibel_r);
 353         } else if(ch == 3) {
 354                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 355                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 356                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 357         }
 358 }
 359 #endif
 360
 361 // ----------------------------------------------------------------------------
 362 // user interface
 363 // ----------------------------------------------------------------------------
 364
 365 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 366 {
 367         fdc->open_disk(drv, file_path, bank);
 368
 369         if(fdc->get_media_type(drv) == MEDIA_TYPE_2DD) {
 370                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2D) {
 371                         fdc->set_drive_type(drv, DRIVE_TYPE_2DD);
 372                 }
 373         } else if(fdc->get_media_type(drv) == MEDIA_TYPE_2D) {
 374                 if(fdc->get_drive_type(drv) == DRIVE_TYPE_2DD) {
 375                         fdc->set_drive_type(drv, DRIVE_TYPE_2D);
 376                 }
 377         }
 378 }
 379
 380 void VM::close_floppy_disk(int drv)
 381 {
 382         fdc->close_disk(drv);
 383 }
 384
 385 bool VM::is_floppy_disk_inserted(int drv)
 386 {
 387         return fdc->is_disk_inserted(drv);
 388 }
 389
 390 void VM::is_floppy_disk_protected(int drv, bool value)
 391 {
 392         fdc->is_disk_protected(drv, value);
 393 }
 394
 395 bool VM::is_floppy_disk_protected(int drv)
 396 {
 397         return fdc->is_disk_protected(drv);
 398 }
 399
 400 uint32_t VM::is_floppy_disk_accessed()
 401 {
 402         return fdc->read_signal(0);
 403 }
 404
 405 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 406 {
 407         if(drv < USE_HARD_DISK) {
 408                 sasi_hdd[drv]->open(0, file_path, 1024);
 409         }
 410 }
 411
 412 void VM::close_hard_disk(int drv)
 413 {
 414         if(drv < USE_HARD_DISK) {
 415                 sasi_hdd[drv]->close(0);
 416         }
 417 }
 418
 419 bool VM::is_hard_disk_inserted(int drv)
 420 {
 421         if(drv < USE_HARD_DISK) {
 422                 return sasi_hdd[drv]->mounted(0);
 423         }
 424         return false;
 425 }
 426
 427 uint32_t VM::is_hard_disk_accessed()
 428 {
 429         uint32_t status = 0;
 430
 431         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 432                 if(sasi_hdd[drv]->accessed(0)) {
 433                         status |= 1 << drv;
 434                 }
 435         }
 436         return status;
 437 }
 438
 439 bool VM::is_frame_skippable()
 440 {
 441         return event->is_frame_skippable();
 442 }
 443
 444 void VM::update_config()
 445 {
 446         for(DEVICE* device = first_device; device; device = device->next_device) {
 447                 device->update_config();
 448         }
 449 }
 450
 451 #define STATE_VERSION   5
 452
 453 bool VM::process_state(FILEIO* state_fio, bool loading)
 454 {
 455         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 456                 return false;
 457         }
 458         for(DEVICE* device = first_device; device; device = device->next_device) {
 459                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 460                 // const char *name = typeid(*device).name();
 461                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 462                 const char *name = device->get_device_name();
 463                 int len = strlen(name);
 464
 465                 if(!state_fio->StateCheckInt32(len)) {
 466                         if(loading) {
 467                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 468                         }
 469                         return false;
 470                 }
 471                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 472                         if(loading) {
 473                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 474                         }
 475                         return false;
 476                 }
 477                 if(!device->process_state(state_fio, loading)) {
 478                         if(loading) {
 479                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 480                         }
 481                         return false;
 482                 }
 483         }
 484         // Machine specified.
 485         return true;
 486 }