source/src/vm/pasopia7/pasopia7.cpp

   1 /*
   2         TOSHIBA PASOPIA 7 Emulator 'EmuPIA7'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2006.09.20 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "pasopia7.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../disk.h"
  17 #include "../hd46505.h"
  18 #include "../i8255.h"
  19 #include "../io.h"
  20 #include "../ls393.h"
  21 #include "../noise.h"
  22 #include "../not.h"
  23 #include "../pcm1bit.h"
  24 #include "../sn76489an.h"
  25 #include "../upd765a.h"
  26 #include "../z80.h"
  27 #include "../z80ctc.h"
  28 #include "../z80pio.h"
  29
  30 #ifdef USE_DEBUGGER
  31 #include "../debugger.h"
  32 #endif
  33
  34 #include "floppy.h"
  35 #include "display.h"
  36 #include "iobus.h"
  37 #include "iotrap.h"
  38 #include "keyboard.h"
  39 #include "./memory.h"
  40 #include "pac2.h"
  41
  42 using PASOPIA7::DISPLAY;
  43 using PASOPIA7::FLOPPY;
  44 using PASOPIA7::IOBUS;
  45 using PASOPIA7::IOTRAP;
  46 using PASOPIA7::KEYBOARD;
  47 using PASOPIA7::MEMORY;
  48 using PASOPIA7::PAC2;
  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
  61         drec = new DATAREC(this, emu);
  62         drec->set_context_noise_play(new NOISE(this, emu));
  63         drec->set_context_noise_stop(new NOISE(this, emu));
  64         drec->set_context_noise_fast(new NOISE(this, emu));
  65         crtc = new HD46505(this, emu);
  66         pio0 = new I8255(this, emu);
  67         pio0->set_device_name(_T("8255 PIO (Display)"));
  68         pio1 = new I8255(this, emu);
  69         pio1->set_device_name(_T("8255 PIO (Display/Memory)"));
  70         pio2 = new I8255(this, emu);
  71         pio2->set_device_name(_T("8255 PIO (Sound/Data Recorder)"));
  72         io = new IO(this, emu);
  73         flipflop = new LS393(this, emu); // LS74
  74         not_remote = new NOT(this, emu);
  75         pcm = new PCM1BIT(this, emu);
  76         psg0 = new SN76489AN(this, emu);
  77         psg0->set_device_name(_T("SN76489AN PSG #1"));
  78         psg1 = new SN76489AN(this, emu);
  79         psg1->set_device_name(_T("SN76489AN PSG #2"));
  80         fdc = new UPD765A(this, emu);
  81         fdc->set_context_noise_seek(new NOISE(this, emu));
  82         fdc->set_context_noise_head_down(new NOISE(this, emu));
  83         fdc->set_context_noise_head_up(new NOISE(this, emu));
  84         cpu = new Z80(this, emu);
  85         ctc = new Z80CTC(this, emu);
  86         pio = new Z80PIO(this, emu);
  87
  88         floppy = new FLOPPY(this, emu);
  89         display = new DISPLAY(this, emu);
  90         iobus = new IOBUS(this, emu);
  91         iotrap = new IOTRAP(this, emu);
  92         key = new KEYBOARD(this, emu);
  93         memory = new MEMORY(this, emu);
  94         pac2 = new PAC2(this, emu);
  95
  96         // set contexts
  97         event->set_context_cpu(cpu);
  98         event->set_context_sound(pcm);
  99         event->set_context_sound(psg0);
 100         event->set_context_sound(psg1);
 101         event->set_context_sound(drec);
 102         event->set_context_sound(fdc->get_context_noise_seek());
 103         event->set_context_sound(fdc->get_context_noise_head_down());
 104         event->set_context_sound(fdc->get_context_noise_head_up());
 105         event->set_context_sound(drec->get_context_noise_play());
 106         event->set_context_sound(drec->get_context_noise_stop());
 107         event->set_context_sound(drec->get_context_noise_fast());
 108
 109         drec->set_context_ear(pio2, SIG_I8255_PORT_B, 0x20);
 110         crtc->set_context_disp(pio0, SIG_I8255_PORT_B, 8);
 111         crtc->set_context_vsync(pio0, SIG_I8255_PORT_B, 0x20);
 112         pio0->set_context_port_a(display, SIG_DISPLAY_I8255_0_A, 0xff, 0);
 113         pio1->set_context_port_a(memory, SIG_MEMORY_I8255_1_A, 0xff, 0);
 114         pio1->set_context_port_b(display, SIG_DISPLAY_I8255_1_B, 0xff, 0);
 115         pio1->set_context_port_b(memory, SIG_MEMORY_I8255_1_B, 0xff, 0);
 116         pio1->set_context_port_c(display, SIG_DISPLAY_I8255_1_C, 0xff, 0);
 117         pio1->set_context_port_c(memory, SIG_MEMORY_I8255_1_C, 0xff, 0);
 118         pio2->set_context_port_a(pcm, SIG_PCM1BIT_MUTE, 0x02, 0);
 119         pio2->set_context_port_a(psg0, SIG_SN76489AN_MUTE, 0x02, 0);
 120         pio2->set_context_port_a(psg1, SIG_SN76489AN_MUTE, 0x02, 0);
 121         pio2->set_context_port_a(drec, SIG_DATAREC_MIC, 0x10, 0);
 122         pio2->set_context_port_a(not_remote, SIG_NOT_INPUT, 0x20, 0);
 123         pio2->set_context_port_a(iotrap, SIG_IOTRAP_I8255_2_A, 0xff, 0);
 124         pio2->set_context_port_c(iotrap, SIG_IOTRAP_I8255_2_C, 0xff, 0);
 125         flipflop->set_context_1qa(pcm, SIG_PCM1BIT_SIGNAL, 1);
 126         not_remote->set_context_out(drec, SIG_DATAREC_REMOTE, 1);
 127         fdc->set_context_irq(floppy, SIG_FLOPPY_INTR, 1);
 128         ctc->set_context_zc0(ctc, SIG_Z80CTC_TRIG_1, 1);
 129         ctc->set_context_zc1(flipflop, SIG_LS393_CLK, 1);
 130         ctc->set_context_zc2(ctc, SIG_Z80CTC_TRIG_3, 1);
 131         ctc->set_constant_clock(0, CPU_CLOCKS);
 132         ctc->set_constant_clock(2, CPU_CLOCKS);
 133         pio->set_context_port_a(pcm, SIG_PCM1BIT_ON, 0x80, 0);
 134         pio->set_context_port_a(key, SIG_KEYBOARD_Z80PIO_A, 0xff, 0);
 135
 136         display->set_vram_ptr(memory->get_vram());
 137         display->set_pal_ptr(memory->get_pal());
 138         display->set_regs_ptr(crtc->get_regs());
 139         floppy->set_context_fdc(fdc);
 140         iobus->set_context_io(io);
 141         iobus->set_ram_ptr(memory->get_ram());
 142         iotrap->set_context_cpu(cpu);
 143         iotrap->set_context_pio2(pio2);
 144         key->set_context_pio(pio);
 145         memory->set_context_iobus(iobus);
 146         memory->set_context_pio0(pio0);
 147         memory->set_context_pio2(pio2);
 148
 149         // cpu bus
 150         cpu->set_context_mem(memory);
 151         cpu->set_context_io(iobus);
 152         cpu->set_context_intr(ctc);
 153 #ifdef USE_DEBUGGER
 154         cpu->set_context_debugger(new DEBUGGER(this, emu));
 155 #endif
 156
 157         // z80 family daisy chain
 158         ctc->set_context_intr(cpu, 0);
 159         ctc->set_context_child(pio);
 160         pio->set_context_intr(cpu, 1);
 161
 162         // i/o bus
 163         io->set_iomap_range_rw(0x08, 0x0b, pio0);
 164         io->set_iomap_range_rw(0x0c, 0x0f, pio1);
 165         io->set_iomap_range_rw(0x10, 0x11, crtc);
 166         io->set_iomap_range_rw(0x18, 0x1b, pac2);
 167         io->set_iomap_range_rw(0x20, 0x23, pio2);
 168         io->set_iomap_range_rw(0x28, 0x2b, ctc);
 169         io->set_iomap_alias_rw(0x30, pio, 0);
 170         io->set_iomap_alias_rw(0x31, pio, 2);
 171         io->set_iomap_alias_w(0x32, pio, 1);
 172         io->set_iomap_alias_w(0x33, pio, 3);
 173         io->set_iomap_single_w(0x3a, psg0);
 174         io->set_iomap_single_w(0x3b, psg1);
 175         io->set_iomap_single_w(0x3c, memory);
 176         io->set_iomap_single_w(0xe0, floppy);
 177         io->set_iomap_single_w(0xe2, floppy);
 178         io->set_iomap_range_rw(0xe4, 0xe5, fdc);
 179         io->set_iomap_single_rw(0xe6, floppy);
 180
 181         // initialize and reset all devices except the event manager
 182 #if defined(__GIT_REPO_VERSION)
 183         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 184 #endif
 185         for(DEVICE* device = first_device; device; device = device->next_device) {
 186                 device->initialize();
 187         }
 188         for(DEVICE* device = first_device; device; device = device->next_device) {
 189 //              if(device->this_device_id != event->this_device_id) {
 190                         device->reset();
 191 //              }
 192         }
 193         for(int i = 0; i < 4; i++) {
 194                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 195         }
 196 }
 197
 198 VM::~VM()
 199 {
 200         // delete all devices
 201         for(DEVICE* device = first_device; device;) {
 202                 DEVICE *next_device = device->next_device;
 203                 device->release();
 204                 delete device;
 205                 device = next_device;
 206         }
 207 }
 208
 209 DEVICE* VM::get_device(int id)
 210 {
 211         for(DEVICE* device = first_device; device; device = device->next_device) {
 212                 if(device->this_device_id == id) {
 213                         return device;
 214                 }
 215         }
 216         return NULL;
 217 }
 218
 219 // ----------------------------------------------------------------------------
 220 // drive virtual machine
 221 // ----------------------------------------------------------------------------
 222
 223 void VM::reset()
 224 {
 225         // reset all devices
 226 //      for(DEVICE* device = first_device; device; device = device->next_device) {
 227 //              device->reset();
 228 //      }
 229         event->reset();
 230         memory->reset();
 231         iotrap->do_reset();
 232
 233         // set initial port status
 234 #ifdef _LCD
 235         pio0->write_signal(SIG_I8255_PORT_B, 0, (0x10 | 0x40));
 236 #else
 237         pio0->write_signal(SIG_I8255_PORT_B, 0x10, (0x10 | 0x40));
 238 #endif
 239         pcm->write_signal(SIG_PCM1BIT_ON, 0, 1);
 240 }
 241
 242 void VM::run()
 243 {
 244         event->drive();
 245 }
 246
 247 double VM::get_frame_rate()
 248 {
 249         return event->get_frame_rate();
 250 }
 251
 252 // ----------------------------------------------------------------------------
 253 // debugger
 254 // ----------------------------------------------------------------------------
 255
 256 #ifdef USE_DEBUGGER
 257 DEVICE *VM::get_cpu(int index)
 258 {
 259         if(index == 0) {
 260                 return cpu;
 261         }
 262         return NULL;
 263 }
 264 #endif
 265
 266 // ----------------------------------------------------------------------------
 267 // draw screen
 268 // ----------------------------------------------------------------------------
 269
 270 void VM::draw_screen()
 271 {
 272         display->draw_screen();
 273 }
 274
 275 // ----------------------------------------------------------------------------
 276 // soud manager
 277 // ----------------------------------------------------------------------------
 278
 279 void VM::initialize_sound(int rate, int samples)
 280 {
 281         // init sound manager
 282         event->initialize_sound(rate, samples);
 283
 284         // init sound gen
 285         pcm->initialize_sound(rate, 3600);
 286         psg0->initialize_sound(rate, 1996800, 3600);
 287         psg1->initialize_sound(rate, 1996800, 3600);
 288 }
 289
 290 uint16_t* VM::create_sound(int* extra_frames)
 291 {
 292         return event->create_sound(extra_frames);
 293 }
 294
 295 int VM::get_sound_buffer_ptr()
 296 {
 297         return event->get_sound_buffer_ptr();
 298 }
 299
 300 #ifdef USE_SOUND_VOLUME
 301 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 302 {
 303         if(ch == 0) {
 304                 psg0->set_volume(0, decibel_l, decibel_r);
 305         } else if(ch == 1) {
 306                 psg1->set_volume(0, decibel_l, decibel_r);
 307         } else if(ch == 2) {
 308                 pcm->set_volume(0, decibel_l, decibel_r);
 309         } else if(ch == 3) {
 310                 drec->set_volume(0, decibel_l, decibel_r);
 311         } else if(ch == 4) {
 312                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 313                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 314                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 315         } else if(ch == 5) {
 316                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 317                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 318                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 319         }
 320 }
 321 #endif
 322
 323 // ----------------------------------------------------------------------------
 324 // user interface
 325 // ----------------------------------------------------------------------------
 326
 327 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 328 {
 329         fdc->open_disk(drv, file_path, bank);
 330 }
 331
 332 void VM::close_floppy_disk(int drv)
 333 {
 334         fdc->close_disk(drv);
 335 }
 336
 337 bool VM::is_floppy_disk_inserted(int drv)
 338 {
 339         return fdc->is_disk_inserted(drv);
 340 }
 341
 342 void VM::is_floppy_disk_protected(int drv, bool value)
 343 {
 344         fdc->is_disk_protected(drv, value);
 345 }
 346
 347 bool VM::is_floppy_disk_protected(int drv)
 348 {
 349         return fdc->is_disk_protected(drv);
 350 }
 351
 352 uint32_t VM::is_floppy_disk_accessed()
 353 {
 354         return fdc->read_signal(0);
 355 }
 356
 357 void VM::play_tape(int drv, const _TCHAR* file_path)
 358 {
 359         drec->play_tape(file_path);
 360 //      drec->set_remote(true);
 361 }
 362
 363 void VM::rec_tape(int drv, const _TCHAR* file_path)
 364 {
 365         drec->rec_tape(file_path);
 366 //      drec->set_remote(true);
 367 }
 368
 369 void VM::close_tape(int drv)
 370 {
 371         emu->lock_vm();
 372         drec->close_tape();
 373         emu->unlock_vm();
 374 //      drec->set_remote(false);
 375 }
 376
 377 bool VM::is_tape_inserted(int drv)
 378 {
 379         return drec->is_tape_inserted();
 380 }
 381
 382 bool VM::is_tape_playing(int drv)
 383 {
 384         return drec->is_tape_playing();
 385 }
 386
 387 bool VM::is_tape_recording(int drv)
 388 {
 389         return drec->is_tape_recording();
 390 }
 391
 392 int VM::get_tape_position(int drv)
 393 {
 394         return drec->get_tape_position();
 395 }
 396
 397 const _TCHAR* VM::get_tape_message(int drv)
 398 {
 399         return drec->get_message();
 400 }
 401
 402 void VM::push_play(int drv)
 403 {
 404         drec->set_ff_rew(0);
 405         drec->set_remote(true);
 406 }
 407
 408 void VM::push_stop(int drv)
 409 {
 410         drec->set_remote(false);
 411 }
 412
 413 void VM::push_fast_forward(int drv)
 414 {
 415         drec->set_ff_rew(1);
 416         drec->set_remote(true);
 417 }
 418
 419 void VM::push_fast_rewind(int drv)
 420 {
 421         drec->set_ff_rew(-1);
 422         drec->set_remote(true);
 423 }
 424
 425 void VM::load_binary(int drv, const _TCHAR* file_path)
 426 {
 427         pac2->open_rampac2(drv, file_path);
 428 }
 429
 430 bool VM::is_frame_skippable()
 431 {
 432         return event->is_frame_skippable();
 433 }
 434
 435 void VM::update_config()
 436 {
 437         for(DEVICE* device = first_device; device; device = device->next_device) {
 438                 device->update_config();
 439         }
 440 }
 441
 442 #define STATE_VERSION   3
 443
 444 bool VM::process_state(FILEIO* state_fio, bool loading)
 445 {
 446         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 447                 return false;
 448         }
 449         for(DEVICE* device = first_device; device; device = device->next_device) {
 450                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 451                 // const char *name = typeid(*device).name();
 452                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 453                 const char *name = device->get_device_name();
 454                 int len = strlen(name);
 455
 456                 if(!state_fio->StateCheckInt32(len)) {
 457                         if(loading) {
 458                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 459                         }
 460                         return false;
 461                 }
 462                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 463                         if(loading) {
 464                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 465                         }
 466                         return false;
 467                 }
 468                 if(!device->process_state(state_fio, loading)) {
 469                         if(loading) {
 470                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 471                         }
 472                         return false;
 473                 }
 474         }
 475         return true;
 476 }