source/src/vm/fmr30/fmr30.cpp

   1 /*
   2         FUJITSU FMR-30 Emulator 'eFMR-30'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2008.12.29 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "fmr30.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../harddisk.h"
  16 #include "../i8237.h"
  17 #include "../i8251.h"
  18 #include "../i8253.h"
  19 #include "../i8259.h"
  20 //#if defined(HAS_I86)
  21 //#include "../i86.h"
  22 //#else
  23 #include "../i286.h"
  24 //#endif
  25 #include "../io.h"
  26 #include "../mb8877.h"
  27 #include "../noise.h"
  28 #include "../scsi_hdd.h"
  29 #include "../scsi_host.h"
  30 #include "../sn76489an.h"
  31
  32 #ifdef USE_DEBUGGER
  33 #include "../debugger.h"
  34 #endif
  35
  36 #include "../fmr50/bios.h"
  37 #include "cmos.h"
  38 #include "floppy.h"
  39 #include "keyboard.h"
  40 #include "./memory.h"
  41 #include "rtc.h"
  42 #include "scsi.h"
  43 #include "serial.h"
  44 #include "system.h"
  45 #include "timer.h"
  46
  47 // ----------------------------------------------------------------------------
  48 // initialize
  49 // ----------------------------------------------------------------------------
  50
  51 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  52 {
  53         // create devices
  54         first_device = last_device = NULL;
  55         dummy = new DEVICE(this, emu);  // must be 1st device
  56         dummy->set_device_name(_T("1st dummy"));
  57         event = new EVENT(this, emu);   // must be 2nd device
  58
  59         dma = new I8237(this, emu);
  60         sio_kb = new I8251(this, emu);  // keyboard
  61         sio_kb->set_device_name(_T("8251 SIO (Keyboard)"));
  62         sio_sub = new I8251(this, emu); // sub display
  63         sio_sub->set_device_name(_T("8251 SIO (Sub System)"));
  64         sio_ch1 = new I8251(this, emu); // RS-232C ch.1
  65         sio_ch1->set_device_name(_T("8251 SIO (RS-232C #1)"));
  66         sio_ch2 = new I8251(this, emu); // RS-232C ch.2
  67         sio_ch2->set_device_name(_T("8251 SIO (RS-232C #2)"));
  68         pit = new I8253(this, emu);
  69         pic = new I8259(this, emu);
  70 //#if defined(HAS_I86)
  71 //      cpu = new I86(this, emu);
  72 //#else
  73         cpu = new I286(this, emu);
  74 //#endif
  75         io = new IO(this, emu);
  76         fdc = new MB8877(this, emu);
  77         fdc->set_context_noise_seek(new NOISE(this, emu));
  78         fdc->set_context_noise_head_down(new NOISE(this, emu));
  79         fdc->set_context_noise_head_up(new NOISE(this, emu));
  80         cpu->set_device_name(_T("CPU(80C86)"));
  81
  82         scsi_host = new SCSI_HOST(this, emu);
  83         for(int i = 0; i < USE_HARD_DISK; i++) {
  84                 scsi_hdd[i] = new SCSI_HDD(this, emu);
  85                 scsi_hdd[i]->set_device_name(_T("SCSI Hard Disk Drive #%d"), i + 1);
  86                 scsi_hdd[i]->scsi_id = i;
  87                 scsi_hdd[i]->set_disk_handler(0, new HARDDISK(emu));
  88                 scsi_hdd[i]->set_context_interface(scsi_host);
  89                 scsi_host->set_context_target(scsi_hdd[i]);
  90         }
  91         psg = new SN76489AN(this, emu);
  92         if(FILEIO::IsFileExisting(create_local_path(_T("IPL.ROM")))) {
  93                 bios = NULL;
  94         } else {
  95                 bios = new BIOS(this, emu);
  96         }
  97         cmos = new CMOS(this, emu);
  98         floppy = new FLOPPY(this, emu);
  99         keyboard = new KEYBOARD(this, emu);
 100         memory = new FMR30_MEMORY(this, emu);
 101         rtc = new RTC(this, emu);
 102         scsi = new SCSI(this, emu);
 103         serial = new SERIAL(this, emu);
 104         system = new SYSTEM(this, emu);
 105         timer = new TIMER(this, emu);
 106         // set contexts
 107         event->set_context_cpu(cpu);
 108         event->set_context_sound(psg);
 109         event->set_context_sound(fdc->get_context_noise_seek());
 110         event->set_context_sound(fdc->get_context_noise_head_down());
 111         event->set_context_sound(fdc->get_context_noise_head_up());
 112
 113         dma->set_context_memory(memory);
 114         dma->set_context_ch0(fdc);
 115         dma->set_context_ch1(scsi_host);
 116         dma->set_context_tc1(scsi, SIG_SCSI_TC, 1);
 117         sio_kb->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_KB, 1);
 118         sio_kb->set_context_txrdy(serial, SIG_SERIAL_TXRDY_KB, 1);
 119         sio_sub->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_SUB, 1);
 120         sio_sub->set_context_txrdy(serial, SIG_SERIAL_TXRDY_SUB, 1);
 121         sio_ch1->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_CH1, 1);
 122         sio_ch1->set_context_txrdy(serial, SIG_SERIAL_TXRDY_CH1, 1);
 123         sio_ch2->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_CH2, 1);
 124         sio_ch2->set_context_txrdy(serial, SIG_SERIAL_TXRDY_CH2, 1);
 125         pit->set_context_ch0(timer, SIG_TIMER_CH0, 1);
 126         pit->set_context_ch1(timer, SIG_TIMER_CH1, 1);
 127         pit->set_constant_clock(0, 1000000);
 128         pit->set_constant_clock(1, 1000000);
 129         pic->set_context_cpu(cpu);
 130         fdc->set_context_drq(dma, SIG_I8237_CH0, 1);
 131         fdc->set_context_irq(floppy, SIG_FLOPPY_IRQ, 1);
 132         scsi_host->set_context_irq(scsi, SIG_SCSI_IRQ, 1);
 133         scsi_host->set_context_drq(scsi, SIG_SCSI_DRQ, 1);
 134
 135         floppy->set_context_fdc(fdc);
 136         floppy->set_context_pic(pic);
 137         keyboard->set_context_sio(sio_kb);
 138         memory->set_context_cpu(cpu);
 139         memory->set_context_dma(dma);
 140         rtc->set_context_pic(pic);
 141         scsi->set_context_dma(dma);
 142         scsi->set_context_pic(pic);
 143         scsi->set_context_host(scsi_host);
 144         serial->set_context_pic(pic);
 145         serial->set_context_sio(sio_kb, sio_sub, sio_ch1, sio_ch2);
 146         timer->set_context_pic(pic);
 147
 148         // cpu bus
 149         cpu->set_context_mem(memory);
 150         cpu->set_context_io(io);
 151         cpu->set_context_intr(pic);
 152         if(bios) {
 153                 bios->set_context_mem(memory);
 154                 bios->set_context_io(io);
 155                 bios->set_cmos_ptr(cmos->get_cmos());
 156                 bios->set_vram_ptr(memory->get_vram());
 157                 bios->set_cvram_ptr(memory->get_cvram());
 158                 bios->set_kvram_ptr(memory->get_kvram());
 159                 cpu->set_context_bios(bios);
 160         }
 161 #ifdef SINGLE_MODE_DMA
 162         cpu->set_context_dma(dma);
 163 #endif
 164 #ifdef USE_DEBUGGER
 165         cpu->set_context_debugger(new DEBUGGER(this, emu));
 166 #endif
 167
 168         // i/o bus
 169         io->set_iomap_range_rw(0x00, 0x07, rtc);
 170         io->set_iomap_range_rw(0x08, 0x09, sio_kb);
 171         io->set_iomap_range_rw(0x0a, 0x0b, serial);
 172         io->set_iomap_range_rw(0x10, 0x11, sio_sub);
 173         io->set_iomap_range_rw(0x12, 0x13, serial);
 174         io->set_iomap_single_r(0x18, system);
 175         io->set_iomap_range_rw(0x1d, 0x1e, memory);
 176         io->set_iomap_range_r(0x20, 0x21, system);
 177         io->set_iomap_single_rw(0x26, memory);
 178         io->set_iomap_range_rw(0x30, 0x33, fdc);
 179         io->set_iomap_range_rw(0x34, 0x36, floppy);
 180         io->set_iomap_single_w(0x40, psg);
 181         io->set_iomap_range_rw(0x42, 0x43, timer);
 182         io->set_iomap_range_rw(0x46, 0x47, system);
 183         io->set_iomap_range_rw(0x60, 0x61, sio_ch1);
 184         io->set_iomap_range_rw(0x62, 0x66, serial);
 185         io->set_iomap_range_rw(0x70, 0x71, sio_ch2);
 186         io->set_iomap_range_rw(0x72, 0x76, serial);
 187         io->set_iomap_alias_rw(0x100, pic, I8259_ADDR_CHIP0 | 0);
 188         io->set_iomap_alias_rw(0x101, pic, I8259_ADDR_CHIP0 | 1);
 189         io->set_iomap_alias_rw(0x108, pic, I8259_ADDR_CHIP1 | 0);
 190         io->set_iomap_alias_rw(0x10a, pic, I8259_ADDR_CHIP1 | 1);
 191         io->set_iomap_range_rw(0x110, 0x11f, dma);
 192         io->set_iomap_range_w(0x120, 0x123, memory);
 193         io->set_iomap_range_rw(0x130, 0x133, pit);
 194         io->set_iomap_range_rw(0x2f0, 0x2f3, scsi);
 195         io->set_iomap_range_rw(0x300, 0x30f, memory);
 196         io->set_iomap_range_rw(0xc000, 0xdfff, cmos);
 197         io->set_iomap_single_rw(0xff00, system);
 198
 199         // initialize all devices
 200 #if defined(__GIT_REPO_VERSION)
 201         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 202 #endif
 203         for(DEVICE* device = first_device; device; device = device->next_device) {
 204                 device->initialize();
 205         }
 206         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 207                 if(!(config.last_hard_disk_path[drv][0] != _T('\0') && FILEIO::IsFileExisting(config.last_hard_disk_path[drv]))) {
 208                         create_local_path(config.last_hard_disk_path[drv], _MAX_PATH, _T("SCSI%d.DAT"), drv);
 209                 }
 210         }
 211         if(bios) {
 212                 for(int drv = 0; drv < MAX_DRIVE; drv++) {
 213                         bios->set_floppy_disk_handler(drv, fdc->get_disk_handler(drv));
 214                 }
 215                 for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 216                         bios->set_hard_disk_handler(drv, scsi_hdd[drv]->get_disk_handler(0));
 217                 }
 218         }
 219 }
 220
 221 VM::~VM()
 222 {
 223         // delete all devices
 224         for(DEVICE* device = first_device; device;) {
 225                 DEVICE *next_device = device->next_device;
 226                 device->release();
 227                 delete device;
 228                 device = next_device;
 229         }
 230 }
 231
 232 DEVICE* VM::get_device(int id)
 233 {
 234         for(DEVICE* device = first_device; device; device = device->next_device) {
 235                 if(device->this_device_id == id) {
 236                         return device;
 237                 }
 238         }
 239         return NULL;
 240 }
 241
 242 // ----------------------------------------------------------------------------
 243 // drive virtual machine
 244 // ----------------------------------------------------------------------------
 245
 246 void VM::reset()
 247 {
 248         // reset all devices
 249         for(DEVICE* device = first_device; device; device = device->next_device) {
 250                 device->reset();
 251         }
 252         // temporary fix...
 253         for(DEVICE* device = first_device; device; device = device->next_device) {
 254                 device->reset();
 255         }
 256
 257         // set devices
 258         sio_kb->write_signal(SIG_I8251_DSR, 1, 1);
 259         sio_sub->write_signal(SIG_I8251_DSR, 0, 0);
 260 }
 261
 262 void VM::run()
 263 {
 264         event->drive();
 265 }
 266
 267 // ----------------------------------------------------------------------------
 268 // debugger
 269 // ----------------------------------------------------------------------------
 270
 271 #ifdef USE_DEBUGGER
 272 DEVICE *VM::get_cpu(int index)
 273 {
 274         if(index == 0) {
 275                 return cpu;
 276         }
 277         return NULL;
 278 }
 279 #endif
 280
 281 // ----------------------------------------------------------------------------
 282 // draw screen
 283 // ----------------------------------------------------------------------------
 284
 285 void VM::draw_screen()
 286 {
 287         memory->draw_screen();
 288 }
 289
 290 // ----------------------------------------------------------------------------
 291 // soud manager
 292 // ----------------------------------------------------------------------------
 293
 294 void VM::initialize_sound(int rate, int samples)
 295 {
 296         // init sound manager
 297         event->initialize_sound(rate, samples);
 298
 299         // init sound gen
 300         psg->initialize_sound(rate, 125000, 10000);
 301 }
 302
 303 uint16_t* VM::create_sound(int* extra_frames)
 304 {
 305         return event->create_sound(extra_frames);
 306 }
 307
 308 int VM::get_sound_buffer_ptr()
 309 {
 310         return event->get_sound_buffer_ptr();
 311 }
 312
 313 #ifdef USE_SOUND_VOLUME
 314 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 315 {
 316         if(ch == 0) {
 317                 psg->set_volume(0, decibel_l, decibel_r);
 318         } else if(ch == 1) {
 319                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 320                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 321                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 322         }
 323 }
 324 #endif
 325
 326 // ----------------------------------------------------------------------------
 327 // notify key
 328 // ----------------------------------------------------------------------------
 329
 330 void VM::key_down(int code, bool repeat)
 331 {
 332         keyboard->key_down(code);
 333 }
 334
 335 void VM::key_up(int code)
 336 {
 337         keyboard->key_up(code);
 338 }
 339
 340 // ----------------------------------------------------------------------------
 341 // user interface
 342 // ----------------------------------------------------------------------------
 343
 344 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 345 {
 346         fdc->open_disk(drv, file_path, bank);
 347         floppy->change_disk(drv);
 348 }
 349
 350 void VM::close_floppy_disk(int drv)
 351 {
 352         fdc->close_disk(drv);
 353 }
 354
 355 bool VM::is_floppy_disk_inserted(int drv)
 356 {
 357         return fdc->is_disk_inserted(drv);
 358 }
 359
 360 void VM::is_floppy_disk_protected(int drv, bool value)
 361 {
 362         fdc->is_disk_protected(drv, value);
 363 }
 364
 365 bool VM::is_floppy_disk_protected(int drv)
 366 {
 367         return fdc->is_disk_protected(drv);
 368 }
 369
 370 uint32_t VM::is_floppy_disk_accessed()
 371 {
 372         uint32_t status = fdc->read_signal(0);
 373         if(bios) {
 374                 status |= bios->read_signal(0);
 375         }
 376         return status;
 377 }
 378
 379 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 380 {
 381         if(drv < USE_HARD_DISK) {
 382                 scsi_hdd[drv]->open(0, file_path, 512);
 383         }
 384 }
 385
 386 void VM::close_hard_disk(int drv)
 387 {
 388         if(drv < USE_HARD_DISK) {
 389                 scsi_hdd[drv]->close(0);
 390         }
 391 }
 392
 393 bool VM::is_hard_disk_inserted(int drv)
 394 {
 395         if(drv < USE_HARD_DISK) {
 396                 return scsi_hdd[drv]->mounted(0);
 397         }
 398         return false;
 399 }
 400
 401 uint32_t VM::is_hard_disk_accessed()
 402 {
 403         uint32_t status = 0;
 404
 405         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 406                 if(scsi_hdd[drv]->accessed(0)) {
 407                         status |= 1 << drv;
 408                 }
 409         }
 410         return status;
 411 }
 412
 413 bool VM::is_frame_skippable()
 414 {
 415         return event->is_frame_skippable();
 416 }
 417
 418 void VM::update_config()
 419 {
 420         for(DEVICE* device = first_device; device; device = device->next_device) {
 421                 device->update_config();
 422         }
 423 }
 424
 425 #define STATE_VERSION   7
 426
 427 bool VM::process_state(FILEIO* state_fio, bool loading)
 428 {
 429         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 430                 return false;
 431         }
 432         for(DEVICE* device = first_device; device; device = device->next_device) {
 433                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 434                 // const char *name = typeid(*device).name();
 435                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 436                 const char *name = device->get_device_name();
 437                 int len = strlen(name);
 438
 439                 if(!state_fio->StateCheckInt32(len)) {
 440                         if(loading) {
 441                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 442                         }
 443                         return false;
 444                 }
 445                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 446                         if(loading) {
 447                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 448                         }
 449                         return false;
 450                 }
 451                 if(!device->process_state(state_fio, loading)) {
 452                         if(loading) {
 453                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 454                         }
 455                         return false;
 456                 }
 457         }
 458         return true;
 459 }