source/src/vm/fm16pi/fm16pi.cpp

   1 /*
   2         FUJITSU FM16pi Emulator 'eFM16pi'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2010.12.25-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "fm16pi.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../i8251.h"
  16 #include "../i8253.h"
  17 #include "../i8255.h"
  18 #include "../i8259.h"
  19 #include "../i86.h"
  20 #include "../io.h"
  21 #include "../mb8877.h"
  22 #include "../memory.h"
  23 #include "../msm58321.h"
  24 #include "../not.h"
  25 #include "../pcm1bit.h"
  26
  27 #ifdef USE_DEBUGGER
  28 #include "../debugger.h"
  29 #endif
  30
  31 #include "sub.h"
  32
  33 // ----------------------------------------------------------------------------
  34 // initialize
  35 // ----------------------------------------------------------------------------
  36
  37 VM::VM(EMU* parent_emu) : emu(parent_emu)
  38 {
  39         // create devices
  40         first_device = last_device = NULL;
  41         dummy = new DEVICE(this, emu);  // must be 1st device
  42         event = new EVENT(this, emu);   // must be 2nd device
  43
  44         sio = new I8251(this, emu);     // for rs232c
  45         pit = new I8253(this, emu);
  46         pio = new I8255(this, emu);     // for system port
  47         pic = new I8259(this, emu);
  48         cpu = new I86(this, emu);
  49         io = new IO(this, emu);
  50         fdc = new MB8877(this, emu);
  51         memory = new MEMORY(this, emu);
  52         rtc = new MSM58321(this, emu);
  53         not_pit = new NOT(this, emu);
  54         pcm = new PCM1BIT(this, emu);
  55
  56         sub = new SUB(this, emu);
  57
  58 #if defined(_USE_QT)
  59         dummy->set_device_name(_T("1st Dummy"));
  60         event->set_device_name(_T("EVENT"));
  61         cpu->set_device_name(_T("CPU(MBL8086L)"));
  62
  63         sio->set_device_name(_T("i8251(RS-232C)"));
  64         pio->set_device_name(_T("i8259(SYSTEM PORT)"));
  65
  66         rtc->set_device_name(_T("MSM58321(RTC)"));
  67         memory->set_device_name(_T("MEMORY"));
  68
  69         sub->set_device_name(_T("SUB SYSTEM"));
  70 #endif
  71
  72         // set contexts
  73         event->set_context_cpu(cpu);
  74         event->set_context_sound(pcm);
  75 #if defined(USE_SOUND_FILES)
  76         if(fdc->load_sound_data(MB8877_SND_TYPE_SEEK, _T("FDDSEEK.WAV"))) {
  77                 event->set_context_sound(fdc);
  78         }
  79 #endif
  80 /*
  81         IRQ 0   PIT CH.0
  82         IRQ 1   SIO RXRDY
  83         IRQ 2   SIO SYNDET
  84         IRQ 3   SIO TXRDY
  85         IRQ 4   KEY IN
  86         IRQ 5   EXT IRQ
  87         IRQ 6   PRN ACK
  88         IRQ 7   FDC IRQ
  89 */
  90         sio->set_context_rxrdy(pic, SIG_I8259_IR1, 1);
  91         sio->set_context_syndet(pic, SIG_I8259_IR2, 1);
  92         sio->set_context_txrdy(pic, SIG_I8259_IR3, 1);
  93
  94 /*
  95         TIMER   Ch.0    IRQ0
  96                 Ch.1    RS-232C sclock
  97                 Ch.2    Speaker
  98 */
  99         pit->set_context_ch0(pic, SIG_I8259_IR0, 1);
 100         pit->set_context_ch0(not_pit, SIG_NOT_INPUT, 1);
 101         not_pit->set_context_out(pio, SIG_I8255_PORT_B, 0x20);
 102         pit->set_context_ch2(pcm, SIG_PCM1BIT_SIGNAL, 1);
 103         pit->set_constant_clock(0, 2457600);
 104         pit->set_constant_clock(1, 2457600);
 105         pit->set_constant_clock(2, 2457600);
 106
 107         pic->set_context_cpu(cpu);
 108
 109         rtc->set_context_data(sub, SIG_SUB_RTC, 0x0f, 0);
 110         rtc->set_context_busy(sub, SIG_SUB_RTC, 0x10);
 111
 112         fdc->set_context_irq(pic, SIG_I8259_IR7, 1);
 113         fdc->set_context_irq(pio, SIG_I8255_PORT_B, 0x40);
 114         fdc->set_context_drq(pio, SIG_I8255_PORT_B, 0x80);
 115
 116         sub->set_context_cpu(cpu);
 117         sub->set_context_fdc(fdc);
 118         sub->set_context_pcm(pcm);
 119         sub->set_context_pic(pic);
 120         sub->set_context_pio(pio);
 121         sub->set_context_rtc(rtc);
 122         sub->set_vram_ptr(ram + 0x78000);
 123
 124         // cpu bus
 125         cpu->set_context_mem(memory);
 126         cpu->set_context_io(io);
 127         cpu->set_context_intr(pic);
 128 #ifdef USE_DEBUGGER
 129         cpu->set_context_debugger(new DEBUGGER(this, emu));
 130 #endif
 131
 132         // memory bus
 133         memset(ram, 0, sizeof(ram));
 134         memset(kanji, 0xff, sizeof(kanji));
 135         memset(cart, 0xff, sizeof(cart));
 136
 137         memory->read_bios(_T("BACKUP.BIN"), ram, sizeof(ram));
 138         memory->read_bios(_T("KANJI.ROM"), kanji, sizeof(kanji));
 139         memory->read_bios(_T("CART.ROM"), cart, sizeof(cart));
 140
 141         memory->set_memory_rw(0x00000, 0x6ffff, ram);
 142         memory->set_memory_rw(0x70000, 0x73fff, ram + 0x78000);
 143         memory->set_memory_rw(0x74000, 0x77fff, ram + 0x78000);
 144         memory->set_memory_rw(0x78000, 0x7bfff, ram + 0x78000);
 145         memory->set_memory_rw(0x7c000, 0x7ffff, ram + 0x78000);
 146         memory->set_memory_r(0x80000, 0xbffff, kanji);
 147         memory->set_memory_r(0xc0000, 0xfffff, cart);
 148
 149         // i/o bus
 150         io->set_iomap_alias_rw(0x00, pic, 0);
 151         io->set_iomap_alias_rw(0x02, pic, 1);
 152 /*
 153         20H     bit0-7  w       printer data
 154         22H     bit0    r       printer busy (1=busy)
 155                 bit1    r       printer error (0=error)
 156                 bit2    r       printer acknlg (0=active)
 157                 bit3    r       printer pe (1=empty)
 158                 bit4    r       printer slct (1=online)
 159                 bit5    r       timer irq (0=active)
 160                 bit6    r       fdc irq (1=active)
 161                 bit7    r       fdc drq (1=active)
 162         24H     bit0    r       datarec write protect (1=protected)
 163                 bit1    r       datarec counter pulse (4hz)
 164                 bit2    r       datarec input
 165                 bit3    r       key irq (0=active)
 166                 bit4-6  w       datarec control
 167                                 0,0,0   stop
 168                                 0,0,1   ff
 169                                 0,1,0   rec
 170                                 1,0,0   pause
 171                                 1,0,1   rew
 172                                 1,1,0   play
 173                 bit7    e       datarec output
 174 */
 175         io->set_iomap_alias_rw(0x20, pio, 0);
 176         io->set_iomap_alias_rw(0x22, pio, 1);
 177         io->set_iomap_alias_rw(0x24, pio, 2);
 178         io->set_iomap_alias_w(0x26, pio, 3);
 179
 180 /*
 181         40H     bit0-3  r       rtc data
 182                 bit4    r       rtc busy
 183                 bit5    r       bcr data
 184                 bit7    r       nmi mask (0=masked)
 185                 bit0-3  w       rtc data/addr
 186                 bit4    w       rtc cs
 187                 bit5    w       rtc addr write
 188                 bit6    w       rtc read
 189                 bit7    w       rtc write
 190         60H     bit0-6  r       kbd data
 191                 bit7    r       kbd make/break (0=make)
 192 */
 193         io->set_iomap_single_rw(0x40, sub);
 194         io->set_iomap_single_r(0x60, sub);
 195
 196         io->set_iomap_alias_rw(0x80, sio, 0);
 197         io->set_iomap_alias_rw(0x82, sio, 1);
 198
 199 /*
 200         A0H     bit0-1  w       rs-232c clock select
 201                 bit2    w       printer strobe (1=on)
 202                 bit3    w       printer irq reset (0=reset)
 203                 bit4    w       timer irq reset (0=reset)
 204                 bit5    w       power off (1=power off)
 205                 bit6    w       speaker on/off (1=on)
 206                 bit7    w       nmi mask (0=masked)
 207 */
 208         io->set_iomap_single_w(0xa0, sub);
 209
 210 /*
 211         C0H     bit0-7  r       fdc status register
 212                 bit0-7  w       fdc command register
 213         C2H     bit0-7  rw      fdc track register
 214         C4H     bit0-7  rw      fdc sector register
 215         C6H     bit0-7  rw      fdc data register
 216         C8H     bit0    rw      floppy side register
 217         CAH     bit0-1  rw      floppy drive number
 218                 bit6    rw      floppy drive disable (1=disable)
 219                 bit7    rw      floppy motor on/off (1=on)
 220 */
 221         io->set_iomap_alias_rw(0xc0, fdc, 0);
 222         io->set_iomap_alias_rw(0xc2, fdc, 1);
 223         io->set_iomap_alias_rw(0xc4, fdc, 2);
 224         io->set_iomap_alias_rw(0xc6, fdc, 3);
 225         io->set_iomap_single_rw(0xc8, sub);
 226         io->set_iomap_single_rw(0xca, sub);
 227
 228         io->set_iomap_alias_rw(0xe0, pit, 0);
 229         io->set_iomap_alias_rw(0xe2, pit, 1);
 230         io->set_iomap_alias_rw(0xe4, pit, 2);
 231         io->set_iomap_alias_w(0xe6, pit, 3);
 232
 233 /*
 234         400H    bit0    w       memory write protect 20000H-47FFFH
 235                 bit1    w       memory write protect 48000H-6FFFFH
 236 */
 237
 238         // initialize all devices
 239         for(DEVICE* device = first_device; device; device = device->next_device) {
 240                 device->initialize();
 241         }
 242         pcm->set_realtime_render(true);
 243 }
 244
 245 VM::~VM()
 246 {
 247         // save memory
 248         memory->write_bios(_T("BACKUP.BIN"), ram, sizeof(ram));
 249
 250         // delete all devices
 251         for(DEVICE* device = first_device; device;) {
 252                 DEVICE *next_device = device->next_device;
 253                 device->release();
 254                 delete device;
 255                 device = next_device;
 256         }
 257 }
 258
 259 DEVICE* VM::get_device(int id)
 260 {
 261         for(DEVICE* device = first_device; device; device = device->next_device) {
 262                 if(device->this_device_id == id) {
 263                         return device;
 264                 }
 265         }
 266         return NULL;
 267 }
 268
 269 // ----------------------------------------------------------------------------
 270 // drive virtual machine
 271 // ----------------------------------------------------------------------------
 272
 273 void VM::reset()
 274 {
 275         // reset all devices
 276         for(DEVICE* device = first_device; device; device = device->next_device) {
 277                 device->reset();
 278         }
 279
 280         // initial device settings
 281         pio->write_signal(SIG_I8255_PORT_B, 0x3f, 0xff);        // printer disconnected
 282         pio->write_signal(SIG_I8255_PORT_C, 0x0c, 0x0f);
 283 }
 284
 285 void VM::notify_power_off()
 286 {
 287 //      emu->out_debug_log(_T("--- POWER OFF ---\n"));
 288         sub->notify_power_off();
 289 }
 290
 291 void VM::run()
 292 {
 293         event->drive();
 294 }
 295
 296 // ----------------------------------------------------------------------------
 297 // debugger
 298 // ----------------------------------------------------------------------------
 299
 300 #ifdef USE_DEBUGGER
 301 DEVICE *VM::get_cpu(int index)
 302 {
 303         if(index == 0) {
 304                 return cpu;
 305         }
 306         return NULL;
 307 }
 308 #endif
 309
 310 // ----------------------------------------------------------------------------
 311 // draw screen
 312 // ----------------------------------------------------------------------------
 313
 314 void VM::draw_screen()
 315 {
 316         sub->draw_screen();
 317 }
 318
 319 uint32_t VM::get_access_lamp_status()
 320 {
 321         uint32_t status = fdc->read_signal(0);
 322         return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 323 }
 324
 325 // ----------------------------------------------------------------------------
 326 // soud manager
 327 // ----------------------------------------------------------------------------
 328
 329 void VM::initialize_sound(int rate, int samples)
 330 {
 331         // init sound manager
 332         event->initialize_sound(rate, samples);
 333
 334         // init sound gen
 335         pcm->initialize_sound(rate, 8000);
 336 }
 337
 338 uint16_t* VM::create_sound(int* extra_frames)
 339 {
 340         return event->create_sound(extra_frames);
 341 }
 342
 343 int VM::get_sound_buffer_ptr()
 344 {
 345         return event->get_sound_buffer_ptr();
 346 }
 347
 348 #ifdef USE_SOUND_VOLUME
 349 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 350 {
 351         if(ch == 0) {
 352                 pcm->set_volume(0, decibel_l, decibel_r);
 353         }
 354 #if defined(USE_SOUND_FILES)
 355         else if(ch == 1) {
 356                 fdc->set_volume(0, decibel_l, decibel_r);
 357         }
 358 #endif
 359 }
 360 #endif
 361
 362 // ----------------------------------------------------------------------------
 363 // notify key
 364 // ----------------------------------------------------------------------------
 365
 366 void VM::key_down(int code, bool repeat)
 367 {
 368         sub->key_down(code);
 369 }
 370
 371 void VM::key_up(int code)
 372 {
 373         sub->key_up(code);
 374 }
 375
 376 // ----------------------------------------------------------------------------
 377 // user interface
 378 // ----------------------------------------------------------------------------
 379
 380 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 381 {
 382         fdc->open_disk(drv, file_path, bank);
 383 }
 384
 385 void VM::close_floppy_disk(int drv)
 386 {
 387         fdc->close_disk(drv);
 388 }
 389
 390 bool VM::is_floppy_disk_inserted(int drv)
 391 {
 392         return fdc->is_disk_inserted(drv);
 393 }
 394
 395 void VM::is_floppy_disk_protected(int drv, bool value)
 396 {
 397         fdc->is_disk_protected(drv, value);
 398 }
 399
 400 bool VM::is_floppy_disk_protected(int drv)
 401 {
 402         return fdc->is_disk_protected(drv);
 403 }
 404
 405 bool VM::is_frame_skippable()
 406 {
 407         return event->is_frame_skippable();
 408 }
 409
 410 void VM::update_config()
 411 {
 412         for(DEVICE* device = first_device; device; device = device->next_device) {
 413                 device->update_config();
 414         }
 415 }
 416
 417 #define STATE_VERSION   1
 418
 419 void VM::save_state(FILEIO* state_fio)
 420 {
 421         state_fio->FputUint32(STATE_VERSION);
 422
 423         for(DEVICE* device = first_device; device; device = device->next_device) {
 424                 device->save_state(state_fio);
 425         }
 426         state_fio->Fwrite(ram, sizeof(ram), 1);
 427 }
 428
 429 bool VM::load_state(FILEIO* state_fio)
 430 {
 431         if(state_fio->FgetUint32() != STATE_VERSION) {
 432                 return false;
 433         }
 434         for(DEVICE* device = first_device; device; device = device->next_device) {
 435                 if(!device->load_state(state_fio)) {
 436                         return false;
 437                 }
 438         }
 439         state_fio->Fread(ram, sizeof(ram), 1);
 440         return true;
 441 }
 442