source/src/vm/mz5500/mz5500.cpp

   1 /*
   2         SHARP MZ-5500 Emulator 'EmuZ-5500'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2008.04.10 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "mz5500.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../disk.h"
  16 #include "../i8237.h"
  17 #include "../i8255.h"
  18 #include "../i8259.h"
  19 //#if defined(HAS_I286) || defined(HAS_I186)
  20 #include "../i286.h"
  21 //#else
  22 //#include "../i86.h"
  23 //#endif
  24 #include "../io.h"
  25 #include "../ls393.h"
  26 #include "../mz1p17.h"
  27 #include "../noise.h"
  28 #include "../not.h"
  29 #include "../prnfile.h"
  30 #include "../rp5c01.h"
  31 #include "../upd7220.h"
  32 #include "../upd765a.h"
  33 //#include "../ym2203.h"
  34 #include "../ay_3_891x.h"
  35 #include "../z80ctc.h"
  36 #include "../z80sio.h"
  37
  38 #ifdef USE_DEBUGGER
  39 #include "../debugger.h"
  40 #endif
  41
  42 #include "display.h"
  43 #include "keyboard.h"
  44 #include "./memory.h"
  45 #include "sysport.h"
  46
  47 using MZ5500::DISPLAY;
  48 using MZ5500::KEYBOARD;
  49 using MZ5500::MEMORY;
  50 using MZ5500::SYSPORT;
  51
  52 // ----------------------------------------------------------------------------
  53 // initialize
  54 // ----------------------------------------------------------------------------
  55
  56 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  57 {
  58         // create devices
  59         first_device = last_device = NULL;
  60         dummy = new DEVICE(this, emu);  // must be 1st device
  61         event = new EVENT(this, emu);   // must be 2nd device
  62         dummy->set_device_name(_T("1st Dummy"));
  63
  64         if(config.printer_type == 0) {
  65                 printer = new PRNFILE(this, emu);
  66         } else if(config.printer_type == 1) {
  67                 printer = new MZ1P17(this, emu);
  68         } else {
  69                 printer = dummy;
  70         }
  71         dma = new I8237(this, emu);
  72         pio = new I8255(this, emu);
  73         pic = new I8259(this, emu);
  74 //#if defined(HAS_I286) || defined(HAS_I186)
  75         cpu = new I286(this, emu);
  76 //#else
  77 //      cpu = new I86(this, emu);
  78 //#endif
  79         io = new IO(this, emu);
  80         div = new LS393(this, emu);
  81         not_data0 = new NOT(this, emu);
  82         not_data0->set_device_name(_T("NOT Gate (Printer Bit0)"));
  83         not_data1 = new NOT(this, emu);
  84         not_data1->set_device_name(_T("NOT Gate (Printer Bit1)"));
  85         not_data2 = new NOT(this, emu);
  86         not_data2->set_device_name(_T("NOT Gate (Printer Bit2)"));
  87         not_data3 = new NOT(this, emu);
  88         not_data3->set_device_name(_T("NOT Gate (Printer Bit3)"));
  89         not_data4 = new NOT(this, emu);
  90         not_data4->set_device_name(_T("NOT Gate (Printer Bit4)"));
  91         not_data5 = new NOT(this, emu);
  92         not_data5->set_device_name(_T("NOT Gate (Printer Bit5)"));
  93         not_data6 = new NOT(this, emu);
  94         not_data6->set_device_name(_T("NOT Gate (Printer Bit6)"));
  95         not_data7 = new NOT(this, emu);
  96         not_data7->set_device_name(_T("NOT Gate (Printer Bit7)"));
  97         not_busy = new NOT(this, emu);
  98         not_busy->set_device_name(_T("NOT Gate (Printer Busy)"));
  99         rtc = new RP5C01(this, emu);
 100         gdc = new UPD7220(this, emu);
 101         fdc = new UPD765A(this, emu);
 102         fdc->set_context_noise_seek(new NOISE(this, emu));
 103         fdc->set_context_noise_head_down(new NOISE(this, emu));
 104         fdc->set_context_noise_head_up(new NOISE(this, emu));
 105 //      psg = new YM2203(this, emu);
 106         psg = new AY_3_891X(this, emu); // AY-3-8912
 107         ctc0 = new Z80CTC(this, emu);
 108 #if defined(_MZ6500) || defined(_MZ6550)
 109         ctc1 = new Z80CTC(this, emu);
 110 #endif
 111         sio = new Z80SIO(this, emu);
 112
 113         display = new DISPLAY(this, emu);
 114         keyboard = new KEYBOARD(this, emu);
 115         memory = new MEMORY(this, emu);
 116         sysport = new SYSPORT(this, emu);
 117
 118         // set contexts
 119         event->set_context_cpu(cpu);
 120         event->set_context_sound(psg);
 121         event->set_context_sound(fdc->get_context_noise_seek());
 122         event->set_context_sound(fdc->get_context_noise_head_down());
 123         event->set_context_sound(fdc->get_context_noise_head_up());
 124
 125         if(config.printer_type == 0) {
 126                 PRNFILE *prnfile = (PRNFILE *)printer;
 127                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 128                 prnfile->set_context_ack(pio, SIG_I8255_PORT_C, 0x40);
 129         } else if(config.printer_type == 1) {
 130                 MZ1P17 *mz1p17 = (MZ1P17 *)printer;
 131                 mz1p17->mode = MZ1P17_MODE_MZ1;
 132                 mz1p17->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 133                 mz1p17->set_context_ack(pio, SIG_I8255_PORT_C, 0x40);
 134         }
 135         dma->set_context_memory(memory);
 136         dma->set_context_ch1(fdc);
 137         pio->set_context_port_a(not_data0, SIG_NOT_INPUT, 0x01, 0);
 138         pio->set_context_port_a(not_data1, SIG_NOT_INPUT, 0x02, 0);
 139         pio->set_context_port_a(not_data2, SIG_NOT_INPUT, 0x04, 0);
 140         pio->set_context_port_a(not_data3, SIG_NOT_INPUT, 0x08, 0);
 141         pio->set_context_port_a(not_data4, SIG_NOT_INPUT, 0x10, 0);
 142         pio->set_context_port_a(not_data5, SIG_NOT_INPUT, 0x20, 0);
 143         pio->set_context_port_a(not_data6, SIG_NOT_INPUT, 0x40, 0);
 144         pio->set_context_port_a(not_data7, SIG_NOT_INPUT, 0x80, 0);
 145         pio->set_context_port_c(keyboard, SIG_KEYBOARD_INPUT, 0x03, 0);
 146         pio->set_context_port_c(pic, SIG_I8259_IR2 | SIG_I8259_CHIP0, 0x08, 0);
 147         pio->set_context_port_c(printer, SIG_PRINTER_STROBE, 0x20, 0);
 148         pic->set_context_cpu(cpu);
 149         div->set_context_2qb(ctc0, SIG_Z80CTC_TRIG_3, 1);
 150 #if defined(_MZ6500) || defined(_MZ6550)
 151         div->set_context_1qb(ctc1, SIG_Z80CTC_TRIG_0, 1);
 152         div->set_context_2qb(ctc1, SIG_Z80CTC_TRIG_1, 1);
 153         div->set_context_2qb(ctc1, SIG_Z80CTC_TRIG_2, 1);
 154         div->set_context_2qd(ctc1, SIG_Z80CTC_TRIG_3, 1);
 155 #endif
 156         rtc->set_context_alarm(pic, SIG_I8259_IR0 | SIG_I8259_CHIP1, 1);
 157         gdc->set_vram_ptr(memory->get_vram(), 0x80000);
 158         gdc->set_context_vsync(pic, SIG_I8259_IR0 | SIG_I8259_CHIP0, 1);
 159         fdc->set_context_irq(pic, SIG_I8259_IR1 | SIG_I8259_CHIP1, 1);
 160         fdc->set_context_drq(dma, SIG_I8237_CH1, 1);
 161         psg->set_context_port_a(pic, SIG_I8259_IR7 | SIG_I8259_CHIP0, 0x20, 0);
 162         psg->set_context_port_a(pic, SIG_I8259_IR7 | SIG_I8259_CHIP1, 0x40, 0);
 163         psg->set_context_port_a(memory, SIG_MEMORY_BANK, 0xe0, 0);
 164         ctc0->set_context_intr(pic, SIG_I8259_IR5 | SIG_I8259_CHIP0);
 165         ctc0->set_context_zc0(div, SIG_LS393_CLK, 1);
 166         ctc0->set_context_zc1(sio, SIG_Z80SIO_TX_CLK_CH0, 1);
 167         ctc0->set_context_zc1(sio, SIG_Z80SIO_RX_CLK_CH0, 1);
 168         ctc0->set_context_zc2(sio, SIG_Z80SIO_TX_CLK_CH1, 1);
 169         ctc0->set_context_zc2(sio, SIG_Z80SIO_RX_CLK_CH1, 1);
 170 #if defined(_MZ6500) || defined(_MZ6550)
 171         ctc0->set_context_child(ctc1);
 172         ctc1->set_context_intr(pic, SIG_I8259_IR5 | SIG_I8259_CHIP0);
 173 #endif
 174         sio->set_context_intr(pic, SIG_I8259_IR1 | SIG_I8259_CHIP0);
 175
 176         not_data0->set_context_out(printer, SIG_PRINTER_DATA, 0x01);
 177         not_data1->set_context_out(printer, SIG_PRINTER_DATA, 0x02);
 178         not_data2->set_context_out(printer, SIG_PRINTER_DATA, 0x04);
 179         not_data3->set_context_out(printer, SIG_PRINTER_DATA, 0x08);
 180         not_data4->set_context_out(printer, SIG_PRINTER_DATA, 0x10);
 181         not_data5->set_context_out(printer, SIG_PRINTER_DATA, 0x20);
 182         not_data6->set_context_out(printer, SIG_PRINTER_DATA, 0x40);
 183         not_data7->set_context_out(printer, SIG_PRINTER_DATA, 0x80);
 184         not_busy->set_context_out(pio, SIG_I8255_PORT_B, 0x01);
 185         display->set_vram_ptr(memory->get_vram());
 186         display->set_sync_ptr(gdc->get_sync());
 187         display->set_ra_ptr(gdc->get_ra());
 188         display->set_cs_ptr(gdc->get_cs());
 189         display->set_ead_ptr(gdc->get_ead());
 190         keyboard->set_context_pio(pio);
 191         keyboard->set_context_pic(pic);
 192         memory->set_context_cpu(cpu);
 193         sysport->set_context_fdc(fdc);
 194         sysport->set_context_ctc(ctc0);
 195         sysport->set_context_sio(sio);
 196
 197         // cpu bus
 198         cpu->set_context_mem(memory);
 199         cpu->set_context_io(io);
 200         cpu->set_context_intr(pic);
 201 #ifdef SINGLE_MODE_DMA
 202         cpu->set_context_dma(dma);
 203 #endif
 204 #ifdef USE_DEBUGGER
 205         cpu->set_context_debugger(new DEBUGGER(this, emu));
 206 #endif
 207
 208         // i/o bus
 209         io->set_iomap_range_rw(0x00, 0x0f, dma);
 210         io->set_iomap_range_rw(0x10, 0x1f, pio);
 211         io->set_iomap_range_rw(0x20, 0x2f, fdc);
 212         for(int i = 0x30; i < 0x40; i += 2) {
 213                 io->set_iomap_alias_rw(i, pic, I8259_ADDR_CHIP0 | ((i >> 1) & 1));
 214         }
 215         for(int i = 0x40; i < 0x50; i += 2) {
 216                 io->set_iomap_alias_rw(i, pic, I8259_ADDR_CHIP1 | ((i >> 1) & 1));
 217         }
 218         io->set_iomap_range_w(0x50, 0x5f, memory);
 219         io->set_iomap_range_r(0x60, 0x6f, sysport);
 220         io->set_iomap_range_w(0x70, 0x7f, sysport);
 221 #if defined(_MZ6500) || defined(_MZ6550)
 222         io->set_iomap_single_rw(0xcd, memory);
 223 #endif
 224         for(int i = 0x100; i < 0x110; i += 2) {
 225                 io->set_iomap_alias_rw(i, gdc, (i >> 1) & 1);
 226         }
 227         io->set_iomap_range_rw(0x110, 0x17f, display);
 228         io->set_iomap_range_rw(0x200, 0x20f, sio);
 229         io->set_iomap_range_rw(0x210, 0x21f, ctc0);
 230         io->set_iomap_range_rw(0x220, 0x22f, rtc);
 231         for(int i = 0x230; i < 0x240; i++) {
 232                 io->set_iomap_alias_rw(i, psg, ~i & 1);
 233         }
 234         io->set_iomap_range_r(0x240, 0x25f, sysport);
 235         io->set_iomap_range_w(0x260, 0x26f, sysport);
 236         io->set_iomap_range_r(0x270, 0x27f, sysport);
 237
 238         // initialize all devices
 239 #if defined(__GIT_REPO_VERSION)
 240         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 241 #endif
 242         for(DEVICE* device = first_device; device; device = device->next_device) {
 243                 device->initialize();
 244         }
 245         for(int i = 0; i < 4; i++) {
 246 #if defined(_MZ6500) || defined(_MZ6550)
 247                 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
 248 #else
 249                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 250 #endif
 251         }
 252 }
 253
 254 VM::~VM()
 255 {
 256         // delete all devices
 257         for(DEVICE* device = first_device; device;) {
 258                 DEVICE *next_device = device->next_device;
 259                 device->release();
 260                 delete device;
 261                 device = next_device;
 262         }
 263 }
 264
 265 DEVICE* VM::get_device(int id)
 266 {
 267         for(DEVICE* device = first_device; device; device = device->next_device) {
 268                 if(device->this_device_id == id) {
 269                         return device;
 270                 }
 271         }
 272         return NULL;
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // drive virtual machine
 277 // ----------------------------------------------------------------------------
 278
 279 void VM::reset()
 280 {
 281         // reset all devices
 282         for(DEVICE* device = first_device; device; device = device->next_device) {
 283                 device->reset();
 284         }
 285         not_busy->write_signal(SIG_NOT_INPUT, 0, 0);            // busy = low
 286         pio->write_signal(SIG_I8255_PORT_B, 0x03, 0x07);        // busy = ~(low), pe = ~(low), pdtr = ~(high)
 287         pio->write_signal(SIG_I8255_PORT_C, 0x40, 0x40);        // ack = high
 288 }
 289
 290 void VM::special_reset()
 291 {
 292         // nmi
 293         cpu->write_signal(SIG_CPU_NMI, 1, 1);
 294         sysport->nmi_reset();
 295 }
 296
 297 void VM::run()
 298 {
 299         event->drive();
 300 }
 301
 302 double VM::get_frame_rate()
 303 {
 304         return event->get_frame_rate();
 305 }
 306
 307 // ----------------------------------------------------------------------------
 308 // debugger
 309 // ----------------------------------------------------------------------------
 310
 311 #ifdef USE_DEBUGGER
 312 DEVICE *VM::get_cpu(int index)
 313 {
 314         if(index == 0) {
 315                 return cpu;
 316         }
 317         return NULL;
 318 }
 319 #endif
 320
 321 // ----------------------------------------------------------------------------
 322 // draw screen
 323 // ----------------------------------------------------------------------------
 324
 325 void VM::draw_screen()
 326 {
 327         display->draw_screen();
 328 }
 329
 330 // ----------------------------------------------------------------------------
 331 // soud manager
 332 // ----------------------------------------------------------------------------
 333
 334 void VM::initialize_sound(int rate, int samples)
 335 {
 336         // init sound manager
 337         event->initialize_sound(rate, samples);
 338
 339         // init sound gen
 340         psg->initialize_sound(rate, 4000000, samples, 0, 0);
 341 }
 342
 343 uint16_t* VM::create_sound(int* extra_frames)
 344 {
 345         return event->create_sound(extra_frames);
 346 }
 347
 348 int VM::get_sound_buffer_ptr()
 349 {
 350         return event->get_sound_buffer_ptr();
 351 }
 352
 353 #ifdef USE_SOUND_VOLUME
 354 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 355 {
 356         if(ch == 0) {
 357                 psg->set_volume(1, decibel_l, decibel_r);
 358         } else if(ch == 1) {
 359                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 360                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 361                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 362         }
 363 }
 364 #endif
 365
 366 // ----------------------------------------------------------------------------
 367 // notify key
 368 // ----------------------------------------------------------------------------
 369
 370 void VM::key_down(int code, bool repeat)
 371 {
 372         keyboard->key_down(code);
 373 }
 374
 375 void VM::key_up(int code)
 376 {
 377 //      keyboard->key_up(code);
 378 }
 379
 380 bool VM::get_caps_locked()
 381 {
 382         return keyboard->get_caps_locked();
 383 }
 384
 385 bool VM::get_kana_locked()
 386 {
 387         return keyboard->get_kana_locked();
 388 }
 389
 390 // ----------------------------------------------------------------------------
 391 // user interface
 392 // ----------------------------------------------------------------------------
 393
 394 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 395 {
 396         fdc->open_disk(drv, file_path, bank);
 397 }
 398
 399 void VM::close_floppy_disk(int drv)
 400 {
 401         fdc->close_disk(drv);
 402 }
 403
 404 bool VM::is_floppy_disk_inserted(int drv)
 405 {
 406         return fdc->is_disk_inserted(drv);
 407 }
 408
 409 void VM::is_floppy_disk_protected(int drv, bool value)
 410 {
 411         fdc->is_disk_protected(drv, value);
 412 }
 413
 414 bool VM::is_floppy_disk_protected(int drv)
 415 {
 416         return fdc->is_disk_protected(drv);
 417 }
 418
 419 uint32_t VM::is_floppy_disk_accessed()
 420 {
 421         return fdc->read_signal(0);
 422 }
 423
 424 bool VM::is_frame_skippable()
 425 {
 426         return event->is_frame_skippable();
 427 }
 428
 429 void VM::update_config()
 430 {
 431         for(DEVICE* device = first_device; device; device = device->next_device) {
 432                 device->update_config();
 433         }
 434 }
 435
 436 #define STATE_VERSION   5
 437
 438 bool VM::process_state(FILEIO* state_fio, bool loading)
 439 {
 440         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 441                 return false;
 442         }
 443         for(DEVICE* device = first_device; device; device = device->next_device) {
 444                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 445                 // const char *name = typeid(*device).name();
 446                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 447                 const char *name = device->get_device_name();
 448                 int len = strlen(name);
 449
 450                 if(!state_fio->StateCheckInt32(len)) {
 451                         if(loading) {
 452                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 453                         }
 454                         return false;
 455                 }
 456                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 457                         if(loading) {
 458                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 459                         }
 460                         return false;
 461                 }
 462                 if(!device->process_state(state_fio, loading)) {
 463                         if(loading) {
 464                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 465                         }
 466                         return false;
 467                 }
 468         }
 469         return true;
 470 }