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 "../i8237.h"
  16 #include "../i8251.h"
  17 #include "../i8253.h"
  18 #include "../i8259.h"
  19 #include "../i286.h"
  20 #include "../io.h"
  21 #include "../mb8877.h"
  22 #include "../scsi_hdd.h"
  23 #include "../scsi_host.h"
  24 #include "../sn76489an.h"
  25
  26 #ifdef USE_DEBUGGER
  27 #include "../debugger.h"
  28 #endif
  29
  30 #include "../fmr50/bios.h"
  31 #include "cmos.h"
  32 #include "floppy.h"
  33 #include "keyboard.h"
  34 #include "memory.h"
  35 #include "rtc.h"
  36 #include "scsi.h"
  37 #include "serial.h"
  38 #include "system.h"
  39 #include "timer.h"
  40
  41 // ----------------------------------------------------------------------------
  42 // initialize
  43 // ----------------------------------------------------------------------------
  44
  45 VM::VM(EMU* parent_emu) : emu(parent_emu)
  46 {
  47         // create devices
  48         first_device = last_device = NULL;
  49         dummy = new DEVICE(this, emu);  // must be 1st device
  50         event = new EVENT(this, emu);   // must be 2nd device
  51
  52         dma = new I8237(this, emu);
  53         sio_kb = new I8251(this, emu);  // keyboard
  54         sio_sub = new I8251(this, emu); // sub display
  55         sio_ch1 = new I8251(this, emu); // RS-232C ch.1
  56         sio_ch2 = new I8251(this, emu); // RS-232C ch.2
  57         pit = new I8253(this, emu);
  58         pic = new I8259(this, emu);
  59         cpu = new I286(this, emu);
  60         io = new IO(this, emu);
  61         fdc = new MB8877(this, emu);
  62 #if defined(_USE_QT)
  63         dummy->set_device_name(_T("1st Dummy"));
  64         event->set_device_name(_T("EVENT"));
  65
  66         dma->set_device_name(_T("i8237 DMAC"));
  67         sio_kb->set_device_name(_T("i8251 SIO(KEYBOARD)"));
  68         sio_sub->set_device_name(_T("i8251 SIO(SUB SYSTEM)"));
  69         sio_ch1->set_device_name(_T("i8251 SIO(RS-232C #1)"));
  70         sio_ch2->set_device_name(_T("i8251 SIO(RS-232C #2)"));
  71         pit->set_device_name(_T("i8253 PIT"));
  72         pic->set_device_name(_T("i8259 PIC"));
  73         cpu->set_device_name(_T("CPU(i8086)"));
  74 #endif
  75
  76         scsi_host = new SCSI_HOST(this, emu);
  77 #if defined(_USE_QT)
  78         scsi_host->set_device_name(_T("SCSI HOST"));
  79 #endif
  80         for(int i = 0; i < 7; i++) {
  81                 if(FILEIO::IsFileExisting(create_local_path(_T("SCSI%d.DAT"), i))) {
  82                         SCSI_HDD* scsi_hdd = new SCSI_HDD(this, emu);
  83 #if defined(_USE_QT)
  84                         char d_name[64] = {0};
  85                         snprintf(d_name, 64, "SCSI DISK #%d", i + 1);
  86                         scsi_hdd->set_device_name(d_name);
  87 #endif
  88                         scsi_hdd->scsi_id = i;
  89                         scsi_hdd->set_context_interface(scsi_host);
  90                         scsi_host->set_context_target(scsi_hdd);
  91                 }
  92         }
  93         psg = new SN76489AN(this, emu);
  94 #if defined(_USE_QT)
  95         psg->set_device_name(_T("SN76489 PSG"));
  96 #endif
  97         if(FILEIO::IsFileExisting(create_local_path(_T("IPL.ROM")))) {
  98                 bios = NULL;
  99         } else {
 100                 bios = new BIOS(this, emu);
 101 #if defined(_USE_QT)
 102                 bios->set_device_name(_T("PSEUDO BIOS"));
 103 #endif
 104         }
 105         cmos = new CMOS(this, emu);
 106         floppy = new FLOPPY(this, emu);
 107         keyboard = new KEYBOARD(this, emu);
 108         memory = new MEMORY(this, emu);
 109         rtc = new RTC(this, emu);
 110         scsi = new SCSI(this, emu);
 111         serial = new SERIAL(this, emu);
 112         system = new SYSTEM(this, emu);
 113         timer = new TIMER(this, emu);
 114 #if defined(_USE_QT)
 115         cmos->set_device_name(_T("CMOS RAM"));
 116         floppy->set_device_name(_T("FLOPPY I/F"));
 117         keyboard->set_device_name(_T("KEYBOARD"));
 118         memory->set_device_name(_T("MEMORY"));
 119         rtc->set_device_name(_T("RTC"));
 120         scsi->set_device_name(_T("SCSI I/F"));
 121         serial->set_device_name(_T("SERIAL I/F"));
 122         system->set_device_name(_T("SYSTEM I/O"));
 123         timer->set_device_name(_T("TIMER I/F"));
 124 #endif
 125         // set contexts
 126         event->set_context_cpu(cpu);
 127         event->set_context_sound(psg);
 128
 129         dma->set_context_memory(memory);
 130         dma->set_context_ch0(fdc);
 131         dma->set_context_ch1(scsi_host);
 132         dma->set_context_tc1(scsi, SIG_SCSI_TC, 1);
 133         sio_kb->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_KB, 1);
 134         sio_kb->set_context_txrdy(serial, SIG_SERIAL_TXRDY_KB, 1);
 135         sio_sub->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_SUB, 1);
 136         sio_sub->set_context_txrdy(serial, SIG_SERIAL_TXRDY_SUB, 1);
 137         sio_ch1->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_CH1, 1);
 138         sio_ch1->set_context_txrdy(serial, SIG_SERIAL_TXRDY_CH1, 1);
 139         sio_ch2->set_context_rxrdy(serial, SIG_SERIAL_RXRDY_CH2, 1);
 140         sio_ch2->set_context_txrdy(serial, SIG_SERIAL_TXRDY_CH2, 1);
 141         pit->set_context_ch0(timer, SIG_TIMER_CH0, 1);
 142         pit->set_context_ch1(timer, SIG_TIMER_CH1, 1);
 143         pit->set_constant_clock(0, 1000000);
 144         pit->set_constant_clock(1, 1000000);
 145         pic->set_context_cpu(cpu);
 146         fdc->set_context_drq(dma, SIG_I8237_CH0, 1);
 147         fdc->set_context_irq(floppy, SIG_FLOPPY_IRQ, 1);
 148         scsi_host->set_context_irq(scsi, SIG_SCSI_IRQ, 1);
 149         scsi_host->set_context_drq(scsi, SIG_SCSI_DRQ, 1);
 150
 151         floppy->set_context_fdc(fdc);
 152         floppy->set_context_pic(pic);
 153         keyboard->set_context_sio(sio_kb);
 154         memory->set_context_cpu(cpu);
 155         memory->set_context_dma(dma);
 156         rtc->set_context_pic(pic);
 157         scsi->set_context_dma(dma);
 158         scsi->set_context_pic(pic);
 159         scsi->set_context_host(scsi_host);
 160         serial->set_context_pic(pic);
 161         serial->set_context_sio(sio_kb, sio_sub, sio_ch1, sio_ch2);
 162         timer->set_context_pic(pic);
 163
 164         // cpu bus
 165         cpu->set_context_mem(memory);
 166         cpu->set_context_io(io);
 167         cpu->set_context_intr(pic);
 168         if(bios) {
 169                 bios->set_context_mem(memory);
 170                 bios->set_context_io(io);
 171                 bios->set_cmos_ptr(cmos->get_cmos());
 172                 bios->set_vram_ptr(memory->get_vram());
 173                 bios->set_cvram_ptr(memory->get_cvram());
 174                 bios->set_kvram_ptr(memory->get_kvram());
 175                 cpu->set_context_bios(bios);
 176         }
 177 #ifdef SINGLE_MODE_DMA
 178         cpu->set_context_dma(dma);
 179 #endif
 180 #ifdef USE_DEBUGGER
 181         cpu->set_context_debugger(new DEBUGGER(this, emu));
 182 #endif
 183
 184         // i/o bus
 185         io->set_iomap_range_rw(0x00, 0x07, rtc);
 186         io->set_iomap_range_rw(0x08, 0x09, sio_kb);
 187         io->set_iomap_range_rw(0x0a, 0x0b, serial);
 188         io->set_iomap_range_rw(0x10, 0x11, sio_sub);
 189         io->set_iomap_range_rw(0x12, 0x13, serial);
 190         io->set_iomap_single_r(0x18, system);
 191         io->set_iomap_range_rw(0x1d, 0x1e, memory);
 192         io->set_iomap_range_r(0x20, 0x21, system);
 193         io->set_iomap_single_rw(0x26, memory);
 194         io->set_iomap_range_rw(0x30, 0x33, fdc);
 195         io->set_iomap_range_rw(0x34, 0x36, floppy);
 196         io->set_iomap_single_w(0x40, psg);
 197         io->set_iomap_range_rw(0x42, 0x43, timer);
 198         io->set_iomap_range_rw(0x46, 0x47, system);
 199         io->set_iomap_range_rw(0x60, 0x61, sio_ch1);
 200         io->set_iomap_range_rw(0x62, 0x66, serial);
 201         io->set_iomap_range_rw(0x70, 0x71, sio_ch2);
 202         io->set_iomap_range_rw(0x72, 0x76, serial);
 203         io->set_iomap_alias_rw(0x100, pic, I8259_ADDR_CHIP0 | 0);
 204         io->set_iomap_alias_rw(0x101, pic, I8259_ADDR_CHIP0 | 1);
 205         io->set_iomap_alias_rw(0x108, pic, I8259_ADDR_CHIP1 | 0);
 206         io->set_iomap_alias_rw(0x10a, pic, I8259_ADDR_CHIP1 | 1);
 207         io->set_iomap_range_rw(0x110, 0x11f, dma);
 208         io->set_iomap_range_w(0x120, 0x123, memory);
 209         io->set_iomap_range_rw(0x130, 0x133, pit);
 210         io->set_iomap_range_rw(0x2f0, 0x2f3, scsi);
 211         io->set_iomap_range_rw(0x300, 0x30f, memory);
 212         io->set_iomap_range_rw(0xc000, 0xdfff, cmos);
 213         io->set_iomap_single_rw(0xff00, system);
 214
 215         // initialize all devices
 216         for(DEVICE* device = first_device; device; device = device->next_device) {
 217                 device->initialize();
 218         }
 219         if(bios) {
 220                 for(int i = 0; i < MAX_DRIVE; i++) {
 221                         bios->set_disk_handler(i, fdc->get_disk_handler(i));
 222                 }
 223         }
 224 }
 225
 226 VM::~VM()
 227 {
 228         // delete all devices
 229         for(DEVICE* device = first_device; device;) {
 230                 DEVICE *next_device = device->next_device;
 231                 device->release();
 232                 delete device;
 233                 device = next_device;
 234         }
 235 }
 236
 237 DEVICE* VM::get_device(int id)
 238 {
 239         for(DEVICE* device = first_device; device; device = device->next_device) {
 240                 if(device->this_device_id == id) {
 241                         return device;
 242                 }
 243         }
 244         return NULL;
 245 }
 246
 247 // ----------------------------------------------------------------------------
 248 // drive virtual machine
 249 // ----------------------------------------------------------------------------
 250
 251 void VM::reset()
 252 {
 253         // reset all devices
 254         for(DEVICE* device = first_device; device; device = device->next_device) {
 255                 device->reset();
 256         }
 257         // temporary fix...
 258         for(DEVICE* device = first_device; device; device = device->next_device) {
 259                 device->reset();
 260         }
 261
 262         // set devices
 263         sio_kb->write_signal(SIG_I8251_DSR, 1, 1);
 264         sio_sub->write_signal(SIG_I8251_DSR, 0, 0);
 265 }
 266
 267 void VM::run()
 268 {
 269         event->drive();
 270 }
 271
 272 // ----------------------------------------------------------------------------
 273 // debugger
 274 // ----------------------------------------------------------------------------
 275
 276 #ifdef USE_DEBUGGER
 277 DEVICE *VM::get_cpu(int index)
 278 {
 279         if(index == 0) {
 280                 return cpu;
 281         }
 282         return NULL;
 283 }
 284 #endif
 285
 286 // ----------------------------------------------------------------------------
 287 // draw screen
 288 // ----------------------------------------------------------------------------
 289
 290 void VM::draw_screen()
 291 {
 292         memory->draw_screen();
 293 }
 294
 295 uint32_t VM::get_access_lamp_status()
 296 {
 297         uint32_t status_fdd = fdc->read_signal(0);
 298         uint32_t status_hdd = scsi_host->read_signal(0);
 299         if(bios) {
 300                 uint32_t status = bios->read_signal(0);
 301                 status_fdd |= status & 0x0f;
 302                 status_hdd |= status >> 4;
 303         }
 304         return (status_hdd) ? 4 : (status_fdd & (1 | 4)) ? 1 : (status_fdd & (2 | 8)) ? 2 : 0;
 305 }
 306
 307 // ----------------------------------------------------------------------------
 308 // soud manager
 309 // ----------------------------------------------------------------------------
 310
 311 void VM::initialize_sound(int rate, int samples)
 312 {
 313         // init sound manager
 314         event->initialize_sound(rate, samples);
 315
 316         // init sound gen
 317         psg->initialize_sound(rate, 125000, 10000);
 318 }
 319
 320 uint16_t* VM::create_sound(int* extra_frames)
 321 {
 322         return event->create_sound(extra_frames);
 323 }
 324
 325 int VM::get_sound_buffer_ptr()
 326 {
 327         return event->get_sound_buffer_ptr();
 328 }
 329
 330 #ifdef USE_SOUND_VOLUME
 331 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 332 {
 333         if(ch == 0) {
 334                 psg->set_volume(0, decibel_l, decibel_r);
 335         }
 336 }
 337 #endif
 338
 339 // ----------------------------------------------------------------------------
 340 // notify key
 341 // ----------------------------------------------------------------------------
 342
 343 void VM::key_down(int code, bool repeat)
 344 {
 345         keyboard->key_down(code);
 346 }
 347
 348 void VM::key_up(int code)
 349 {
 350         keyboard->key_up(code);
 351 }
 352
 353 // ----------------------------------------------------------------------------
 354 // user interface
 355 // ----------------------------------------------------------------------------
 356
 357 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 358 {
 359         fdc->open_disk(drv, file_path, bank);
 360         floppy->change_disk(drv);
 361 }
 362
 363 void VM::close_floppy_disk(int drv)
 364 {
 365         fdc->close_disk(drv);
 366 }
 367
 368 bool VM::is_floppy_disk_inserted(int drv)
 369 {
 370         return fdc->is_disk_inserted(drv);
 371 }
 372
 373 void VM::is_floppy_disk_protected(int drv, bool value)
 374 {
 375         fdc->is_disk_protected(drv, value);
 376 }
 377
 378 bool VM::is_floppy_disk_protected(int drv)
 379 {
 380         return fdc->is_disk_protected(drv);
 381 }
 382
 383 bool VM::is_frame_skippable()
 384 {
 385         return event->is_frame_skippable();
 386 }
 387
 388 void VM::update_config()
 389 {
 390         for(DEVICE* device = first_device; device; device = device->next_device) {
 391                 device->update_config();
 392         }
 393 }
 394
 395 #define STATE_VERSION   3
 396
 397 void VM::save_state(FILEIO* state_fio)
 398 {
 399         state_fio->FputUint32(STATE_VERSION);
 400
 401         for(DEVICE* device = first_device; device; device = device->next_device) {
 402                 device->save_state(state_fio);
 403         }
 404 }
 405
 406 bool VM::load_state(FILEIO* state_fio)
 407 {
 408         if(state_fio->FgetUint32() != STATE_VERSION) {
 409                 return false;
 410         }
 411         for(DEVICE* device = first_device; device; device = device->next_device) {
 412                 if(!device->load_state(state_fio)) {
 413                         return false;
 414                 }
 415         }
 416         return true;
 417 }
 418