source/src/vm/fmr50/fmr50.cpp

   1 /*
   2         FUJITSU FMR-50 Emulator 'eFMR-50'
   3         FUJITSU FMR-60 Emulator 'eFMR-60'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2008.04.28 -
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "fmr50.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../hd46505.h"
  17 #ifdef _FMR60
  18 #include "../hd63484.h"
  19 #endif
  20 #include "../i8251.h"
  21 #include "../i8253.h"
  22 #include "../i8259.h"
  23 #if defined(HAS_I286)
  24 #include "../i286.h"
  25 #else
  26 #include "../i386.h"
  27 #endif
  28 #include "../io.h"
  29 #include "../mb8877.h"
  30 #include "../msm58321.h"
  31 #include "../pcm1bit.h"
  32 #include "../upd71071.h"
  33
  34 #ifdef USE_DEBUGGER
  35 #include "../debugger.h"
  36 #endif
  37
  38 #include "bios.h"
  39 #include "cmos.h"
  40 #include "floppy.h"
  41 #include "keyboard.h"
  42 #include "memory.h"
  43 #include "scsi.h"
  44 //#include "serial.h"
  45 #include "timer.h"
  46
  47 #include "../../fileio.h"
  48
  49 // ----------------------------------------------------------------------------
  50 // initialize
  51 // ----------------------------------------------------------------------------
  52
  53 VM::VM(EMU* parent_emu) : emu(parent_emu)
  54 {
  55 /*
  56         Machine ID & CPU ID
  57
  58         FMR-50FD/HD/LT  0xF8
  59         FMR-50FX/HX     0xE0
  60         FMR-50SFX/SHX   0xE8
  61         FMR-50LT        0xF8
  62         FMR-50NBX       0x28
  63         FMR-50NB        0x60
  64         FMR-50NE/T      0x08
  65         FMR-CARD        0x70
  66
  67         80286           0x00
  68         80386           0x01
  69         80386SX         0x03
  70         80486           0x02
  71 */
  72         static const int cpu_clock[] = {
  73 #if defined(HAS_I286)
  74                  8000000, 12000000
  75 #elif defined(HAS_I386)
  76                 16000000, 20000000
  77 #elif defined(HAS_I486)
  78                 20000000, 25000000
  79 #endif
  80         };
  81
  82 #if defined(_FMR60) && (defined(HAS_I386) || defined(HAS_I486) || defined(HAS_PENTIUM))
  83         uint8 machine_id = 0xf0;        // FMR-70/80
  84 #else
  85         uint8 machine_id = 0xf8;        // FMR-50/60
  86 #endif
  87
  88         FILEIO* fio = new FILEIO();
  89         if(fio->Fopen(emu->bios_path(_T("MACHINE.ID")), FILEIO_READ_BINARY)) {
  90                 machine_id = fio->Fgetc();
  91                 fio->Fclose();
  92         }
  93         delete fio;
  94
  95         machine_id &= ~7;
  96 #if defined(HAS_I286)
  97         machine_id |= 0;        // 286
  98 #elif defined(HAS_I386)
  99 //      machine_id |= 1;        // 386DX
 100         machine_id |= 3;        // 386SX
 101 #elif defined(HAS_I486)
 102         machine_id |= 2;        // 486SX/DX
 103 #endif
 104
 105         // create devices
 106         first_device = last_device = NULL;
 107         dummy = new DEVICE(this, emu);  // must be 1st device
 108         event = new EVENT(this, emu);   // must be 2nd device
 109
 110 #if defined(HAS_I286)
 111         cpu = new I286(this, emu);
 112 #else
 113         cpu = new I386(this, emu);
 114 #endif
 115         crtc = new HD46505(this, emu);
 116 #ifdef _FMR60
 117         acrtc = new HD63484(this, emu);
 118 #endif
 119         sio = new I8251(this, emu);
 120         pit0 = new I8253(this, emu);
 121         pit1 = new I8253(this, emu);
 122         pic = new I8259(this, emu);
 123         io = new IO(this, emu);
 124         fdc = new MB8877(this, emu);
 125         rtc = new MSM58321(this, emu);
 126         pcm = new PCM1BIT(this, emu);
 127         dma = new UPD71071(this, emu);
 128
 129         bios = new BIOS(this, emu);
 130         cmos = new CMOS(this, emu);
 131         floppy = new FLOPPY(this, emu);
 132         keyboard = new KEYBOARD(this, emu);
 133         memory = new MEMORY(this, emu);
 134         scsi = new SCSI(this, emu);
 135 //      serial = new SERIAL(this, emu);
 136         timer = new TIMER(this, emu);
 137
 138         // set contexts
 139         event->set_context_cpu(cpu, cpu_clock[config.cpu_type & 1]);
 140         event->set_context_sound(pcm);
 141
 142 /*      pic     0       timer
 143                 1       keyboard
 144                 2       rs-232c
 145                 3       ex rs-232c
 146                 4       (option)
 147                 5       (option)
 148                 6       floppy drive or dma ???
 149                 7       (slave)
 150                 8       scsi
 151                 9       (option)
 152                 10      (option)
 153                 11      (option)
 154                 12      printer
 155                 13      (option)
 156                 14      (option)
 157                 15      (reserve)
 158
 159         dma     0       floppy drive
 160                 1       hard drive
 161                 2       (option)
 162                 3       (reserve)
 163 */
 164         crtc->set_context_disp(memory, SIG_MEMORY_DISP, 1);
 165         crtc->set_context_vsync(memory, SIG_MEMORY_VSYNC, 1);
 166 #ifdef _FMR60
 167         acrtc->set_vram_ptr((uint16*)memory->get_vram(), 0x80000);
 168 #endif
 169         pit0->set_context_ch0(timer, SIG_TIMER_CH0, 1);
 170         pit0->set_context_ch1(timer, SIG_TIMER_CH1, 1);
 171         pit0->set_context_ch2(pcm, SIG_PCM1BIT_SIGNAL, 1);
 172         pit0->set_constant_clock(0, 307200);
 173         pit0->set_constant_clock(1, 307200);
 174         pit0->set_constant_clock(2, 307200);
 175         pit1->set_constant_clock(1, 1228800);
 176         pic->set_context_cpu(cpu);
 177         fdc->set_context_drq(dma, SIG_UPD71071_CH0, 1);
 178         fdc->set_context_irq(floppy, SIG_FLOPPY_IRQ, 1);
 179         rtc->set_context_data(timer, SIG_TIMER_RTC, 0x0f, 0);
 180         rtc->set_context_busy(timer, SIG_TIMER_RTC, 0x80);
 181         dma->set_context_memory(memory);
 182         dma->set_context_ch0(fdc);
 183 //      dma->set_context_ch1(scsi);
 184
 185         bios->set_context_mem(memory);
 186         bios->set_context_io(io);
 187         bios->set_cmos_ptr(cmos->get_cmos());
 188         bios->set_vram_ptr(memory->get_vram());
 189         bios->set_cvram_ptr(memory->get_cvram());
 190 #ifdef _FMR60
 191         bios->set_avram_ptr(memory->get_avram());
 192 #else
 193         bios->set_kvram_ptr(memory->get_kvram());
 194 #endif
 195         floppy->set_context_fdc(fdc);
 196         floppy->set_context_pic(pic);
 197         keyboard->set_context_pic(pic);
 198         memory->set_context_cpu(cpu);
 199         memory->set_machine_id(machine_id);
 200         memory->set_context_crtc(crtc);
 201         memory->set_chregs_ptr(crtc->get_regs());
 202 //      scsi->set_context_dma(dma);
 203 //      scsi->set_context_pic(pic);
 204         timer->set_context_pcm(pcm);
 205         timer->set_context_pic(pic);
 206         timer->set_context_rtc(rtc);
 207
 208         // cpu bus
 209         cpu->set_context_mem(memory);
 210         cpu->set_context_io(io);
 211         cpu->set_context_intr(pic);
 212         cpu->set_context_bios(bios);
 213 #ifdef SINGLE_MODE_DMA
 214         cpu->set_context_dma(dma);
 215 #endif
 216 #ifdef USE_DEBUGGER
 217         cpu->set_context_debugger(new DEBUGGER(this, emu));
 218 #endif
 219
 220         // i/o bus
 221         io->set_iomap_alias_rw(0x00, pic, I8259_ADDR_CHIP0 | 0);
 222         io->set_iomap_alias_rw(0x02, pic, I8259_ADDR_CHIP0 | 1);
 223         io->set_iomap_alias_rw(0x10, pic, I8259_ADDR_CHIP1 | 0);
 224         io->set_iomap_alias_rw(0x12, pic, I8259_ADDR_CHIP1 | 1);
 225         io->set_iomap_single_rw(0x20, memory);  // reset
 226         io->set_iomap_single_r(0x21, memory);   // cpu misc
 227         io->set_iomap_single_w(0x22, memory);   // dma
 228         io->set_iomap_single_rw(0x24, memory);  // dma
 229         io->set_iomap_single_r(0x26, timer);
 230         io->set_iomap_single_r(0x27, timer);
 231         io->set_iomap_single_r(0x30, memory);   // cpu id
 232         io->set_iomap_alias_rw(0x40, pit0, 0);
 233         io->set_iomap_alias_rw(0x42, pit0, 1);
 234         io->set_iomap_alias_rw(0x44, pit0, 2);
 235         io->set_iomap_alias_rw(0x46, pit0, 3);
 236         io->set_iomap_alias_rw(0x50, pit1, 0);
 237         io->set_iomap_alias_rw(0x52, pit1, 1);
 238         io->set_iomap_alias_rw(0x54, pit1, 2);
 239         io->set_iomap_alias_rw(0x56, pit1, 3);
 240         io->set_iomap_single_rw(0x60, timer);
 241         io->set_iomap_single_rw(0x70, timer);
 242         io->set_iomap_single_w(0x80, timer);
 243 #ifdef _FMRCARD
 244         io->set_iomap_single_w(0x90, cmos);
 245 #endif
 246         io->set_iomap_range_rw(0xa0, 0xaf, dma);
 247         io->set_iomap_alias_rw(0x200, fdc, 0);
 248         io->set_iomap_alias_rw(0x202, fdc, 1);
 249         io->set_iomap_alias_rw(0x204, fdc, 2);
 250         io->set_iomap_alias_rw(0x206, fdc, 3);
 251         io->set_iomap_single_rw(0x208, floppy);
 252         io->set_iomap_single_rw(0x20c, floppy);
 253         io->set_iomap_single_rw(0x400, memory); // crtc
 254         io->set_iomap_single_rw(0x402, memory); // crtc
 255         io->set_iomap_single_rw(0x404, memory); // crtc
 256         io->set_iomap_single_w(0x408, memory);  // crtc
 257         io->set_iomap_single_rw(0x40a, memory); // crtc
 258         io->set_iomap_single_rw(0x40c, memory); // crtc
 259         io->set_iomap_single_rw(0x40e, memory); // crtc
 260         io->set_iomap_alias_rw(0x500, crtc, 0);
 261         io->set_iomap_alias_rw(0x502, crtc, 1);
 262 #ifdef _FMR60
 263         io->set_iomap_range_rw(0x520, 0x523, acrtc);
 264 #endif
 265         io->set_iomap_single_rw(0x600, keyboard);
 266         io->set_iomap_single_rw(0x602, keyboard);
 267         io->set_iomap_single_rw(0x604, keyboard);
 268         io->set_iomap_alias_rw(0xa00, sio, 0);
 269         io->set_iomap_alias_rw(0xa02, sio, 1);
 270 //      io->set_iomap_single_r(0xa04, serial);
 271 //      io->set_iomap_single_r(0xa06, serial);
 272 //      io->set_iomap_single_w(0xa08, serial);
 273         io->set_iomap_single_rw(0xc30, scsi);
 274         io->set_iomap_single_rw(0xc32, scsi);
 275         io->set_iomap_range_rw(0x3000, 0x3fff, cmos);
 276         io->set_iomap_range_rw(0xfd98, 0xfd9f, memory); // crtc
 277         io->set_iomap_single_rw(0xfda0, memory);        // crtc
 278
 279         // initialize all devices
 280         for(DEVICE* device = first_device; device; device = device->next_device) {
 281                 device->initialize();
 282         }
 283         for(int i = 0; i < MAX_DRIVE; i++) {
 284                 bios->set_disk_handler(i, fdc->get_disk_handler(i));
 285         }
 286 }
 287
 288 VM::~VM()
 289 {
 290         // delete all devices
 291         for(DEVICE* device = first_device; device;) {
 292                 DEVICE *next_device = device->next_device;
 293                 device->release();
 294                 delete device;
 295                 device = next_device;
 296         }
 297 }
 298
 299 DEVICE* VM::get_device(int id)
 300 {
 301         for(DEVICE* device = first_device; device; device = device->next_device) {
 302                 if(device->this_device_id == id) {
 303                         return device;
 304                 }
 305         }
 306         return NULL;
 307 }
 308
 309 // ----------------------------------------------------------------------------
 310 // drive virtual machine
 311 // ----------------------------------------------------------------------------
 312
 313 void VM::reset()
 314 {
 315         // reset all devices
 316         for(DEVICE* device = first_device; device; device = device->next_device) {
 317                 device->reset();
 318         }
 319         // temporary fix...
 320         for(DEVICE* device = first_device; device; device = device->next_device) {
 321                 device->reset();
 322         }
 323 }
 324
 325 void VM::run()
 326 {
 327         event->drive();
 328 }
 329
 330 // ----------------------------------------------------------------------------
 331 // debugger
 332 // ----------------------------------------------------------------------------
 333
 334 #ifdef USE_DEBUGGER
 335 DEVICE *VM::get_cpu(int index)
 336 {
 337         if(index == 0) {
 338                 return cpu;
 339         }
 340         return NULL;
 341 }
 342 #endif
 343
 344 // ----------------------------------------------------------------------------
 345 // draw screen
 346 // ----------------------------------------------------------------------------
 347
 348 void VM::draw_screen()
 349 {
 350         memory->draw_screen();
 351 }
 352
 353 int VM::access_lamp()
 354 {
 355         uint32 status = fdc->read_signal(0) | bios->read_signal(0);
 356         return (status & 0x10) ? 4 : (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
 357 }
 358
 359 // ----------------------------------------------------------------------------
 360 // soud manager
 361 // ----------------------------------------------------------------------------
 362
 363 void VM::initialize_sound(int rate, int samples)
 364 {
 365         // init sound manager
 366         event->initialize_sound(rate, samples);
 367
 368         // init sound gen
 369         pcm->init(rate, 8000);
 370 }
 371
 372 uint16* VM::create_sound(int* extra_frames)
 373 {
 374         return event->create_sound(extra_frames);
 375 }
 376
 377 int VM::sound_buffer_ptr()
 378 {
 379         return event->sound_buffer_ptr();
 380 }
 381
 382 // ----------------------------------------------------------------------------
 383 // notify key
 384 // ----------------------------------------------------------------------------
 385
 386 void VM::key_down(int code, bool repeat)
 387 {
 388         keyboard->key_down(code);
 389 }
 390
 391 void VM::key_up(int code)
 392 {
 393         keyboard->key_up(code);
 394 }
 395
 396 // ----------------------------------------------------------------------------
 397 // user interface
 398 // ----------------------------------------------------------------------------
 399
 400 void VM::open_disk(int drv, _TCHAR* file_path, int offset)
 401 {
 402         fdc->open_disk(drv, file_path, offset);
 403         floppy->change_disk(drv);
 404 }
 405
 406 void VM::close_disk(int drv)
 407 {
 408         fdc->close_disk(drv);
 409 }
 410
 411 bool VM::disk_inserted(int drv)
 412 {
 413         return fdc->disk_inserted(drv);
 414 }
 415
 416 bool VM::now_skip()
 417 {
 418         return event->now_skip();
 419 }
 420
 421 void VM::update_config()
 422 {
 423         for(DEVICE* device = first_device; device; device = device->next_device) {
 424                 device->update_config();
 425         }
 426 }
 427