source/src/vm/mz2800/mz2800.cpp

   1 /*
   2         SHARP MZ-2800 Emulator 'EmuZ-2800'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2007.08.13 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "mz2800.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../i8253.h"
  16 #include "../i8255.h"
  17 #include "../i8259.h"
  18 #include "../i286.h"
  19 #include "../io.h"
  20 #include "../mb8877.h"
  21 #include "../mz1p17.h"
  22 #include "../noise.h"
  23 #include "../not.h"
  24 #include "../pcm1bit.h"
  25 //#include "../pcpr201.h"
  26 #include "../prnfile.h"
  27 #include "../rp5c01.h"
  28 //#include "../sasi.h"
  29 #include "../upd71071.h"
  30 #include "../ym2203.h"
  31 #include "../z80pio.h"
  32 #include "../z80sio.h"
  33
  34 #ifdef USE_DEBUGGER
  35 #include "../debugger.h"
  36 #endif
  37
  38 #include "crtc.h"
  39 #include "floppy.h"
  40 #include "joystick.h"
  41 #include "keyboard.h"
  42 #include "memory.h"
  43 #include "mouse.h"
  44 #include "printer.h"
  45 #include "reset.h"
  46 #include "serial.h"
  47 #include "sysport.h"
  48
  49 // ----------------------------------------------------------------------------
  50 // initialize
  51 // ----------------------------------------------------------------------------
  52
  53 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  54 {
  55         // create devices
  56         first_device = last_device = NULL;
  57         dummy = new DEVICE(this, emu);  // must be 1st device
  58         event = new EVENT(this, emu);   // must be 2nd device
  59         dummy->set_device_name(_T("1st Dummy"));
  60
  61         cpu = new I286(this, emu);
  62         pit = new I8253(this, emu);
  63         pio0 = new I8255(this, emu);
  64         pic = new I8259(this, emu);
  65         io = new IO(this, emu);
  66         fdc = new MB8877(this, emu);
  67         fdc->set_context_noise_seek(new NOISE(this, emu));
  68         fdc->set_context_noise_head_down(new NOISE(this, emu));
  69         fdc->set_context_noise_head_up(new NOISE(this, emu));
  70         not_busy = new NOT(this, emu);
  71         not_busy->set_device_name(_T("NOT GATE(PRINTER BUSY)"));
  72
  73         pcm = new PCM1BIT(this, emu);
  74         rtc = new RP5C01(this, emu);    // RP-5C15
  75 //      sasi = new SASI(this, emu);
  76         dma = new UPD71071(this, emu);
  77         opn = new YM2203(this, emu);
  78         pio1 = new Z80PIO(this, emu);
  79         sio = new Z80SIO(this, emu);
  80
  81         crtc = new CRTC(this, emu);
  82         floppy = new FLOPPY(this, emu);
  83         joystick = new JOYSTICK(this, emu);
  84         keyboard = new KEYBOARD(this, emu);
  85         memory = new MEMORY(this, emu);
  86         mouse = new MOUSE(this, emu);
  87         printer = new PRINTER(this, emu);
  88         rst = new RESET(this, emu);
  89         serial = new SERIAL(this, emu);
  90         sysport = new SYSPORT(this, emu);
  91
  92         // set contexts
  93         event->set_context_cpu(cpu);
  94         event->set_context_sound(opn);
  95         event->set_context_sound(pcm);
  96         event->set_context_sound(fdc->get_context_noise_seek());
  97         event->set_context_sound(fdc->get_context_noise_head_down());
  98         event->set_context_sound(fdc->get_context_noise_head_up());
  99
 100         pit->set_constant_clock(0, 31250);
 101         pit->set_constant_clock(2, 31250);
 102         pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
 103         pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);
 104         pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);
 105         pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);
 106         pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);
 107         pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
 108         pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
 109         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
 110         //pcm->set_realtime_render(true);
 111
 112
 113         pic->set_context_cpu(cpu);
 114         fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);
 115         fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);
 116         not_busy->set_context_out(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 1);
 117         rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);
 118         rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
 119 //      sasi->set_context_drq(dma, SIG_UPD71071_CH0, 1);
 120 //      sasi->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR4, 1);
 121         dma->set_context_memory(memory);
 122 //      dma->set_context_ch0(sasi);
 123         dma->set_context_ch1(fdc);
 124         dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);
 125         opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);
 126         opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
 127         opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
 128         pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
 129         pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);
 130         sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);
 131         sio->set_context_dtr(1, mouse, SIG_MOUSE_DTR, 1);
 132
 133         crtc->set_context_pic(pic);
 134         crtc->set_context_pio(pio0);
 135         crtc->set_vram_ptr(memory->get_vram());
 136         crtc->set_tvram_ptr(memory->get_tvram());
 137         crtc->set_kanji_ptr(memory->get_kanji());
 138         crtc->set_pcg_ptr(memory->get_pcg());
 139         floppy->set_context_fdc(fdc);
 140         keyboard->set_context_pio0(pio0);
 141         keyboard->set_context_pio1(pio1);
 142         memory->set_context_crtc(crtc);
 143         mouse->set_context_sio(sio);
 144         if(config.printer_type == 0) {
 145                 PRNFILE *prnfile = new PRNFILE(this, emu);
 146                 prnfile->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 147                 printer->set_context_prn(prnfile);
 148         } else if(config.printer_type == 1) {
 149                 MZ1P17 *mz1p17 = new MZ1P17(this, emu);
 150                 mz1p17->mode = MZ1P17_MODE_MZ1;
 151                 mz1p17->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 152                 printer->set_context_prn(mz1p17);
 153 //      } else if(config.printer_type == 2) {
 154 //              PCPR201 *pcpr201 = new PCPR201(this, emu);
 155 //              pcpr201->set_context_busy(not_busy, SIG_NOT_INPUT, 1);
 156 //              printer->set_context_prn(pcpr201);
 157         } else {
 158                 printer->set_context_prn(dummy);
 159         }
 160         serial->set_context_sio(sio);
 161         sysport->set_context_pit(pit);
 162         sysport->set_context_sio(sio);
 163
 164         // cpu bus
 165         cpu->set_context_mem(memory);
 166         cpu->set_context_io(io);
 167         cpu->set_context_intr(pic);
 168 #ifdef SINGLE_MODE_DMA
 169         cpu->set_context_dma(dma);
 170 #endif
 171 #ifdef USE_DEBUGGER
 172         cpu->set_context_debugger(new DEBUGGER(this, emu));
 173 #endif
 174
 175         // i/o bus
 176         io->set_iomap_range_rw(0x70, 0x7f, dma);
 177         io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);
 178         io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);
 179         io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);
 180         io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);
 181         io->set_iomap_range_rw(0x8c, 0x8d, memory);
 182         io->set_iovalue_single_r(0x8e, 0xff);   // dipswitch
 183         io->set_flipflop_single_rw(0x8f, 0x00); // shut
 184         io->set_iomap_range_rw(0xa0, 0xa3, serial);
 185         for(uint32_t p = 0xae; p <= 0x1fae; p += 0x100) {
 186                 io->set_iomap_single_w(p, crtc);
 187         }
 188 //      io->set_iomap_single_rw(0xaf, sasi);
 189         io->set_iomap_range_rw(0xb0, 0xb3, serial);
 190         io->set_iomap_single_r(0xbe, sysport);
 191         io->set_iomap_range_rw(0xc8, 0xc9, opn);
 192         io->set_iovalue_single_r(0xca, 0x7f);   // voice communication ???
 193         for(uint32_t p = 0xcc; p <= 0xfcc; p += 0x100) {
 194                 io->set_iomap_alias_rw(p, rtc, p >> 8);
 195         }
 196         io->set_iomap_single_w(0xcd, serial);
 197         io->set_iomap_single_rw(0xce, memory);
 198         io->set_iomap_range_rw(0xd8, 0xdb, fdc);
 199         io->set_iomap_range_w(0xdc, 0xdf, floppy);
 200         io->set_iomap_range_rw(0xe0, 0xe3, pio0);
 201         io->set_iomap_range_rw(0xe4, 0xe7, pit);
 202         io->set_iomap_range_rw(0xe8, 0xeb, pio1);
 203         io->set_iomap_single_rw(0xef, joystick);
 204 //      io->set_iomap_range_w(0xf0, 0xf3, sysport);
 205         io->set_iomap_single_w(0x170, crtc);
 206         io->set_iomap_single_w(0x172, crtc);
 207         io->set_iomap_single_w(0x174, crtc);
 208         io->set_iomap_single_w(0x176, crtc);
 209         io->set_iomap_range_w(0x178, 0x17b, crtc);
 210         io->set_iomap_range_rw(0x1fe, 0x1ff, printer);
 211         io->set_iomap_single_w(0x270, crtc);
 212         io->set_iomap_single_w(0x272, crtc);
 213         io->set_iomap_single_rw(0x274, memory);
 214
 215         // initialize all devices
 216         for(DEVICE* device = first_device; device; device = device->next_device) {
 217                 device->initialize();
 218         }
 219         decl_state();
 220 }
 221
 222 VM::~VM()
 223 {
 224         // delete all devices
 225         for(DEVICE* device = first_device; device;) {
 226                 DEVICE *next_device = device->next_device;
 227                 device->release();
 228                 delete device;
 229                 device = next_device;
 230         }
 231 }
 232
 233 DEVICE* VM::get_device(int id)
 234 {
 235         for(DEVICE* device = first_device; device; device = device->next_device) {
 236                 if(device->this_device_id == id) {
 237                         return device;
 238                 }
 239         }
 240         return NULL;
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // drive virtual machine
 245 // ----------------------------------------------------------------------------
 246
 247 void VM::reset()
 248 {
 249         // reset all devices
 250         for(DEVICE* device = first_device; device; device = device->next_device) {
 251                 device->reset();
 252         }
 253         // temporary fix...
 254         for(DEVICE* device = first_device; device; device = device->next_device) {
 255                 device->reset();
 256         }
 257
 258         // set initial port status
 259         pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);
 260         opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);
 261 }
 262
 263 void VM::cpu_reset()
 264 {
 265         cpu->reset();
 266 }
 267
 268 void VM::run()
 269 {
 270         event->drive();
 271 }
 272
 273 // ----------------------------------------------------------------------------
 274 // debugger
 275 // ----------------------------------------------------------------------------
 276
 277 #ifdef USE_DEBUGGER
 278 DEVICE *VM::get_cpu(int index)
 279 {
 280         if(index == 0) {
 281                 return cpu;
 282         }
 283         return NULL;
 284 }
 285 #endif
 286
 287 // ----------------------------------------------------------------------------
 288 // draw screen
 289 // ----------------------------------------------------------------------------
 290
 291 void VM::draw_screen()
 292 {
 293         crtc->draw_screen();
 294 }
 295
 296 // ----------------------------------------------------------------------------
 297 // soud manager
 298 // ----------------------------------------------------------------------------
 299
 300 void VM::initialize_sound(int rate, int samples)
 301 {
 302         // init sound manager
 303         event->initialize_sound(rate, samples);
 304
 305         // init sound gen
 306         opn->initialize_sound(rate, 2000000, samples, 0, -8);
 307         pcm->initialize_sound(rate, 4096);
 308 }
 309
 310 uint16_t* VM::create_sound(int* extra_frames)
 311 {
 312         return event->create_sound(extra_frames);
 313 }
 314
 315 int VM::get_sound_buffer_ptr()
 316 {
 317         return event->get_sound_buffer_ptr();
 318 }
 319
 320 #ifdef USE_SOUND_VOLUME
 321 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 322 {
 323         if(ch == 0) {
 324                 opn->set_volume(0, decibel_l, decibel_r);
 325         } else if(ch == 1) {
 326                 opn->set_volume(1, decibel_l, decibel_r);
 327         } else if(ch == 2) {
 328                 pcm->set_volume(0, decibel_l, decibel_r);
 329         } else if(ch == 3) {
 330                 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
 331                 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
 332                 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
 333         }
 334 }
 335 #endif
 336
 337 // ----------------------------------------------------------------------------
 338 // user interface
 339 // ----------------------------------------------------------------------------
 340
 341 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 342 {
 343         fdc->open_disk(drv, file_path, bank);
 344 }
 345
 346 void VM::close_floppy_disk(int drv)
 347 {
 348         fdc->close_disk(drv);
 349 }
 350
 351 bool VM::is_floppy_disk_inserted(int drv)
 352 {
 353         return fdc->is_disk_inserted(drv);
 354 }
 355
 356 void VM::is_floppy_disk_protected(int drv, bool value)
 357 {
 358         fdc->is_disk_protected(drv, value);
 359 }
 360
 361 bool VM::is_floppy_disk_protected(int drv)
 362 {
 363         return fdc->is_disk_protected(drv);
 364 }
 365
 366 uint32_t VM::is_floppy_disk_accessed()
 367 {
 368         return fdc->read_signal(0);
 369 }
 370
 371 bool VM::is_frame_skippable()
 372 {
 373         return event->is_frame_skippable();
 374 }
 375
 376 void VM::update_config()
 377 {
 378         for(DEVICE* device = first_device; device; device = device->next_device) {
 379                 device->update_config();
 380         }
 381 }
 382
 383 #define STATE_VERSION   4
 384
 385 #include "../../statesub.h"
 386 #include "../../qt/gui/csp_logger.h"
 387 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 388
 389 void VM::decl_state(void)
 390 {
 391         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::MZ_2800_HEAD")), csp_logger);
 392         for(DEVICE* device = first_device; device; device = device->next_device) {
 393                 device->decl_state();
 394         }
 395 }
 396
 397 void VM::save_state(FILEIO* state_fio)
 398 {
 399         //state_fio->FputUint32(STATE_VERSION);
 400
 401         if(state_entry != NULL) {
 402                 state_entry->save_state(state_fio);
 403         }
 404         for(DEVICE* device = first_device; device; device = device->next_device) {
 405                 device->save_state(state_fio);
 406         }
 407 }
 408
 409 bool VM::load_state(FILEIO* state_fio)
 410 {
 411         //if(state_fio->FgetUint32() != STATE_VERSION) {
 412         //      return false;
 413         //}
 414         bool mb = false;
 415         if(state_entry != NULL) {
 416                 mb = state_entry->load_state(state_fio);
 417         }
 418         if(!mb) {
 419                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 420                 return false;
 421         }
 422         for(DEVICE* device = first_device; device; device = device->next_device) {
 423                 if(!device->load_state(state_fio)) {
 424                         return false;
 425                 }
 426         }
 427         return true;
 428 }
 429