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 // ----------------------------------------------------------------------------
  43 // initialize
  44 // ----------------------------------------------------------------------------
  45
  46 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  47 {
  48         // create devices
  49         first_device = last_device = NULL;
  50         dummy = new DEVICE(this, emu);  // must be 1st device
  51         event = new EVENT(this, emu);   // must be 2nd device
  52
  53         drec = new DATAREC(this, emu);
  54         drec->set_context_noise_play(new NOISE(this, emu));
  55         drec->set_context_noise_stop(new NOISE(this, emu));
  56         drec->set_context_noise_fast(new NOISE(this, emu));
  57         crtc = new HD46505(this, emu);
  58         pio0 = new I8255(this, emu);
  59         pio0->set_device_name(_T("8255 PIO (Display)"));
  60         pio1 = new I8255(this, emu);
  61         pio1->set_device_name(_T("8255 PIO (Display/Memory)"));
  62         pio2 = new I8255(this, emu);
  63         pio2->set_device_name(_T("8255 PIO (Sound/Data Recorder)"));
  64         io = new IO(this, emu);
  65         flipflop = new LS393(this, emu); // LS74
  66         not_remote = new NOT(this, emu);
  67         pcm = new PCM1BIT(this, emu);
  68         psg0 = new SN76489AN(this, emu);
  69         psg0->set_device_name(_T("SN76489AN PSG #1"));
  70         psg1 = new SN76489AN(this, emu);
  71         psg1->set_device_name(_T("SN76489AN PSG #2"));
  72         fdc = new UPD765A(this, emu);
  73         fdc->set_context_noise_seek(new NOISE(this, emu));
  74         fdc->set_context_noise_head_down(new NOISE(this, emu));
  75         fdc->set_context_noise_head_up(new NOISE(this, emu));
  76         cpu = new Z80(this, emu);
  77         ctc = new Z80CTC(this, emu);
  78         pio = new Z80PIO(this, emu);
  79
  80         floppy = new FLOPPY(this, emu);
  81         display = new DISPLAY(this, emu);
  82         iobus = new IOBUS(this, emu);
  83         iotrap = new IOTRAP(this, emu);
  84         key = new KEYBOARD(this, emu);
  85         memory = new PASOPIA7_MEMORY(this, emu);
  86         pac2 = new PAC2(this, emu);
  87
  88         // set contexts
  89         event->set_context_cpu(cpu);
  90         event->set_context_sound(pcm);
  91         event->set_context_sound(psg0);
  92         event->set_context_sound(psg1);
  93         event->set_context_sound(drec);
  94         event->set_context_sound(fdc->get_context_noise_seek());
  95         event->set_context_sound(fdc->get_context_noise_head_down());
  96         event->set_context_sound(fdc->get_context_noise_head_up());
  97         event->set_context_sound(drec->get_context_noise_play());
  98         event->set_context_sound(drec->get_context_noise_stop());
  99         event->set_context_sound(drec->get_context_noise_fast());
 100
 101         drec->set_context_ear(pio2, SIG_I8255_PORT_B, 0x20);
 102         crtc->set_context_disp(pio0, SIG_I8255_PORT_B, 8);
 103         crtc->set_context_vsync(pio0, SIG_I8255_PORT_B, 0x20);
 104         pio0->set_context_port_a(display, SIG_DISPLAY_I8255_0_A, 0xff, 0);
 105         pio1->set_context_port_a(memory, SIG_MEMORY_I8255_1_A, 0xff, 0);
 106         pio1->set_context_port_b(display, SIG_DISPLAY_I8255_1_B, 0xff, 0);
 107         pio1->set_context_port_b(memory, SIG_MEMORY_I8255_1_B, 0xff, 0);
 108         pio1->set_context_port_c(display, SIG_DISPLAY_I8255_1_C, 0xff, 0);
 109         pio1->set_context_port_c(memory, SIG_MEMORY_I8255_1_C, 0xff, 0);
 110         pio2->set_context_port_a(pcm, SIG_PCM1BIT_MUTE, 0x02, 0);
 111         pio2->set_context_port_a(psg0, SIG_SN76489AN_MUTE, 0x02, 0);
 112         pio2->set_context_port_a(psg1, SIG_SN76489AN_MUTE, 0x02, 0);
 113         pio2->set_context_port_a(drec, SIG_DATAREC_MIC, 0x10, 0);
 114         pio2->set_context_port_a(not_remote, SIG_NOT_INPUT, 0x20, 0);
 115         pio2->set_context_port_a(iotrap, SIG_IOTRAP_I8255_2_A, 0xff, 0);
 116         pio2->set_context_port_c(iotrap, SIG_IOTRAP_I8255_2_C, 0xff, 0);
 117         flipflop->set_context_1qa(pcm, SIG_PCM1BIT_SIGNAL, 1);
 118         not_remote->set_context_out(drec, SIG_DATAREC_REMOTE, 1);
 119         fdc->set_context_irq(floppy, SIG_FLOPPY_INTR, 1);
 120         ctc->set_context_zc0(ctc, SIG_Z80CTC_TRIG_1, 1);
 121         ctc->set_context_zc1(flipflop, SIG_LS393_CLK, 1);
 122         ctc->set_context_zc2(ctc, SIG_Z80CTC_TRIG_3, 1);
 123         ctc->set_constant_clock(0, CPU_CLOCKS);
 124         ctc->set_constant_clock(2, CPU_CLOCKS);
 125         pio->set_context_port_a(pcm, SIG_PCM1BIT_ON, 0x80, 0);
 126         pio->set_context_port_a(key, SIG_KEYBOARD_Z80PIO_A, 0xff, 0);
 127
 128         display->set_vram_ptr(memory->get_vram());
 129         display->set_pal_ptr(memory->get_pal());
 130         display->set_regs_ptr(crtc->get_regs());
 131         floppy->set_context_fdc(fdc);
 132         iobus->set_context_io(io);
 133         iobus->set_ram_ptr(memory->get_ram());
 134         iotrap->set_context_cpu(cpu);
 135         iotrap->set_context_pio2(pio2);
 136         key->set_context_pio(pio);
 137         memory->set_context_iobus(iobus);
 138         memory->set_context_pio0(pio0);
 139         memory->set_context_pio2(pio2);
 140
 141         // cpu bus
 142         cpu->set_context_mem(memory);
 143         cpu->set_context_io(iobus);
 144         cpu->set_context_intr(ctc);
 145 #ifdef USE_DEBUGGER
 146         cpu->set_context_debugger(new DEBUGGER(this, emu));
 147 #endif
 148
 149         // z80 family daisy chain
 150         ctc->set_context_intr(cpu, 0);
 151         ctc->set_context_child(pio);
 152         pio->set_context_intr(cpu, 1);
 153
 154         // i/o bus
 155         io->set_iomap_range_rw(0x08, 0x0b, pio0);
 156         io->set_iomap_range_rw(0x0c, 0x0f, pio1);
 157         io->set_iomap_range_rw(0x10, 0x11, crtc);
 158         io->set_iomap_range_rw(0x18, 0x1b, pac2);
 159         io->set_iomap_range_rw(0x20, 0x23, pio2);
 160         io->set_iomap_range_rw(0x28, 0x2b, ctc);
 161         io->set_iomap_alias_rw(0x30, pio, 0);
 162         io->set_iomap_alias_rw(0x31, pio, 2);
 163         io->set_iomap_alias_w(0x32, pio, 1);
 164         io->set_iomap_alias_w(0x33, pio, 3);
 165         io->set_iomap_single_w(0x3a, psg0);
 166         io->set_iomap_single_w(0x3b, psg1);
 167         io->set_iomap_single_w(0x3c, memory);
 168         io->set_iomap_single_w(0xe0, floppy);
 169         io->set_iomap_single_w(0xe2, floppy);
 170         io->set_iomap_range_rw(0xe4, 0xe5, fdc);
 171         io->set_iomap_single_rw(0xe6, floppy);
 172
 173         // initialize and reset all devices except the event manager
 174 #if defined(__GIT_REPO_VERSION)
 175         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 176 #endif
 177         for(DEVICE* device = first_device; device; device = device->next_device) {
 178                 device->initialize();
 179         }
 180         for(DEVICE* device = first_device; device; device = device->next_device) {
 181 //              if(device->this_device_id != event->this_device_id) {
 182                         device->reset();
 183 //              }
 184         }
 185         for(int i = 0; i < 4; i++) {
 186                 fdc->set_drive_type(i, DRIVE_TYPE_2D);
 187         }
 188 }
 189
 190 VM::~VM()
 191 {
 192         // delete all devices
 193         for(DEVICE* device = first_device; device;) {
 194                 DEVICE *next_device = device->next_device;
 195                 device->release();
 196                 delete device;
 197                 device = next_device;
 198         }
 199 }
 200
 201 DEVICE* VM::get_device(int id)
 202 {
 203         for(DEVICE* device = first_device; device; device = device->next_device) {
 204                 if(device->this_device_id == id) {
 205                         return device;
 206                 }
 207         }
 208         return NULL;
 209 }
 210
 211 // ----------------------------------------------------------------------------
 212 // drive virtual machine
 213 // ----------------------------------------------------------------------------
 214
 215 void VM::reset()
 216 {
 217         // reset all devices
 218 //      for(DEVICE* device = first_device; device; device = device->next_device) {
 219 //              device->reset();
 220 //      }
 221         event->reset();
 222         memory->reset();
 223         iotrap->do_reset();
 224
 225         // set initial port status
 226 #ifdef _LCD
 227         pio0->write_signal(SIG_I8255_PORT_B, 0, (0x10 | 0x40));
 228 #else
 229         pio0->write_signal(SIG_I8255_PORT_B, 0x10, (0x10 | 0x40));
 230 #endif
 231         pcm->write_signal(SIG_PCM1BIT_ON, 0, 1);
 232 }
 233
 234 void VM::run()
 235 {
 236         event->drive();
 237 }
 238
 239 double VM::get_frame_rate()
 240 {
 241         return event->get_frame_rate();
 242 }
 243
 244 // ----------------------------------------------------------------------------
 245 // debugger
 246 // ----------------------------------------------------------------------------
 247
 248 #ifdef USE_DEBUGGER
 249 DEVICE *VM::get_cpu(int index)
 250 {
 251         if(index == 0) {
 252                 return cpu;
 253         }
 254         return NULL;
 255 }
 256 #endif
 257
 258 // ----------------------------------------------------------------------------
 259 // draw screen
 260 // ----------------------------------------------------------------------------
 261
 262 void VM::draw_screen()
 263 {
 264         display->draw_screen();
 265 }
 266
 267 // ----------------------------------------------------------------------------
 268 // soud manager
 269 // ----------------------------------------------------------------------------
 270
 271 void VM::initialize_sound(int rate, int samples)
 272 {
 273         // init sound manager
 274         event->initialize_sound(rate, samples);
 275
 276         // init sound gen
 277         pcm->initialize_sound(rate, 3600);
 278         psg0->initialize_sound(rate, 1996800, 3600);
 279         psg1->initialize_sound(rate, 1996800, 3600);
 280 }
 281
 282 uint16_t* VM::create_sound(int* extra_frames)
 283 {
 284         return event->create_sound(extra_frames);
 285 }
 286
 287 int VM::get_sound_buffer_ptr()
 288 {
 289         return event->get_sound_buffer_ptr();
 290 }
 291
 292 #ifdef USE_SOUND_VOLUME
 293 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 294 {
 295         if(ch == 0) {
 296                 psg0->set_volume(0, decibel_l, decibel_r);
 297         } else if(ch == 1) {
 298                 psg1->set_volume(0, decibel_l, decibel_r);
 299         } else if(ch == 2) {
 300                 pcm->set_volume(0, decibel_l, decibel_r);
 301         } else if(ch == 3) {
 302                 drec->set_volume(0, decibel_l, decibel_r);
 303         } else if(ch == 4) {
 304                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 305                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 306                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 307         } else if(ch == 5) {
 308                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 309                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 310                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 311         }
 312 }
 313 #endif
 314
 315 // ----------------------------------------------------------------------------
 316 // user interface
 317 // ----------------------------------------------------------------------------
 318
 319 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 320 {
 321         fdc->open_disk(drv, file_path, bank);
 322 }
 323
 324 void VM::close_floppy_disk(int drv)
 325 {
 326         fdc->close_disk(drv);
 327 }
 328
 329 bool VM::is_floppy_disk_inserted(int drv)
 330 {
 331         return fdc->is_disk_inserted(drv);
 332 }
 333
 334 void VM::is_floppy_disk_protected(int drv, bool value)
 335 {
 336         fdc->is_disk_protected(drv, value);
 337 }
 338
 339 bool VM::is_floppy_disk_protected(int drv)
 340 {
 341         return fdc->is_disk_protected(drv);
 342 }
 343
 344 uint32_t VM::is_floppy_disk_accessed()
 345 {
 346         return fdc->read_signal(0);
 347 }
 348
 349 void VM::play_tape(int drv, const _TCHAR* file_path)
 350 {
 351         drec->play_tape(file_path);
 352 //      drec->set_remote(true);
 353 }
 354
 355 void VM::rec_tape(int drv, const _TCHAR* file_path)
 356 {
 357         drec->rec_tape(file_path);
 358 //      drec->set_remote(true);
 359 }
 360
 361 void VM::close_tape(int drv)
 362 {
 363         emu->lock_vm();
 364         drec->close_tape();
 365         emu->unlock_vm();
 366 //      drec->set_remote(false);
 367 }
 368
 369 bool VM::is_tape_inserted(int drv)
 370 {
 371         return drec->is_tape_inserted();
 372 }
 373
 374 bool VM::is_tape_playing(int drv)
 375 {
 376         return drec->is_tape_playing();
 377 }
 378
 379 bool VM::is_tape_recording(int drv)
 380 {
 381         return drec->is_tape_recording();
 382 }
 383
 384 int VM::get_tape_position(int drv)
 385 {
 386         return drec->get_tape_position();
 387 }
 388
 389 const _TCHAR* VM::get_tape_message(int drv)
 390 {
 391         return drec->get_message();
 392 }
 393
 394 void VM::push_play(int drv)
 395 {
 396         drec->set_ff_rew(0);
 397         drec->set_remote(true);
 398 }
 399
 400 void VM::push_stop(int drv)
 401 {
 402         drec->set_remote(false);
 403 }
 404
 405 void VM::push_fast_forward(int drv)
 406 {
 407         drec->set_ff_rew(1);
 408         drec->set_remote(true);
 409 }
 410
 411 void VM::push_fast_rewind(int drv)
 412 {
 413         drec->set_ff_rew(-1);
 414         drec->set_remote(true);
 415 }
 416
 417 void VM::load_binary(int drv, const _TCHAR* file_path)
 418 {
 419         pac2->open_rampac2(drv, file_path);
 420 }
 421
 422 bool VM::is_frame_skippable()
 423 {
 424         return event->is_frame_skippable();
 425 }
 426
 427 void VM::update_config()
 428 {
 429         for(DEVICE* device = first_device; device; device = device->next_device) {
 430                 device->update_config();
 431         }
 432 }
 433
 434 #define STATE_VERSION   3
 435
 436 bool VM::process_state(FILEIO* state_fio, bool loading)
 437 {
 438         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 439                 return false;
 440         }
 441         for(DEVICE* device = first_device; device; device = device->next_device) {
 442                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 443                 // const char *name = typeid(*device).name();
 444                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 445                 const char *name = device->get_device_name();
 446                 int len = strlen(name);
 447
 448                 if(!state_fio->StateCheckInt32(len)) {
 449                         if(loading) {
 450                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 451                         }
 452                         return false;
 453                 }
 454                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 455                         if(loading) {
 456                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 457                         }
 458                         return false;
 459                 }
 460                 if(!device->process_state(state_fio, loading)) {
 461                         if(loading) {
 462                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 463                         }
 464                         return false;
 465                 }
 466         }
 467         return true;
 468 }