source/src/vm/mycomz80a/mycomz80a.cpp

   1 /*
   2         Japan Electronics College MYCOMZ-80A Emulator 'eMYCOMZ-80A'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2009.05.13-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "mycomz80a.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../hd46505.h"
  17 #include "../i8255.h"
  18 #include "../io.h"
  19 #include "../msm58321.h"
  20 #include "../noise.h"
  21 #include "../sn76489an.h"
  22 #include "../z80.h"
  23
  24 #ifdef USE_DEBUGGER
  25 #include "../debugger.h"
  26 #endif
  27
  28 #include "display.h"
  29 #include "keyboard.h"
  30 #include "memory.h"
  31
  32 // ----------------------------------------------------------------------------
  33 // initialize
  34 // ----------------------------------------------------------------------------
  35
  36 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  37 {
  38         // create devices
  39         first_device = last_device = NULL;
  40         dummy = new DEVICE(this, emu);  // must be 1st device
  41         event = new EVENT(this, emu);   // must be 2nd device
  42         dummy->set_device_name(_T("1st Dummy"));
  43
  44         drec = new DATAREC(this, emu);
  45         drec->set_context_noise_play(new NOISE(this, emu));
  46         drec->set_context_noise_stop(new NOISE(this, emu));
  47         drec->set_context_noise_fast(new NOISE(this, emu));
  48         crtc = new HD46505(this, emu);
  49         pio1 = new I8255(this, emu);
  50         pio1->set_device_name(_T("8255 PIO (VRAM/Keyboard)"));
  51         pio2 = new I8255(this, emu);
  52         pio2->set_device_name(_T("8255 PIO (Display/Keyboard/CMT)"));
  53         pio3 = new I8255(this, emu);
  54         pio3->set_device_name(_T("8255 PIO (FDC/RTC)"));
  55         io = new IO(this, emu);
  56         rtc = new MSM5832(this, emu);   // MSM5832
  57         psg = new SN76489AN(this, emu);
  58         cpu = new Z80(this, emu);
  59
  60         display = new DISPLAY(this, emu);
  61         keyboard = new KEYBOARD(this, emu);
  62         memory = new MEMORY(this, emu);
  63
  64         // set contexts
  65         event->set_context_cpu(cpu);
  66         event->set_context_sound(psg);
  67         event->set_context_sound(drec);
  68         event->set_context_sound(drec->get_context_noise_play());
  69         event->set_context_sound(drec->get_context_noise_stop());
  70         event->set_context_sound(drec->get_context_noise_fast());
  71
  72         //      00      out     system control
  73         //      01      in/out  vram data
  74         //      02      out     crtc addr
  75         //      03      in/out  crtc data
  76         //      04-07   in/ou   pio1
  77         //              pa0-7   out     vram addr low, psg data
  78         //              pb0-7   in      keyboard data
  79         //              pc0-2   out     vram addr high
  80         //              pc3     out     fdc format write
  81         //              pc4     in      keyboard s2
  82         //              pc5     in      keyboard s3
  83         //              pc6     in      keyboard s4 (motor on/off)
  84         //              pc7     in      keyboard s5 (slow)
  85         //      08-0b   in/ou   pio2
  86         //              pa0     in      keyboard strobe (1=pressed)
  87         //              pa1     in      keyboard shift (1=pressed)
  88         //              pa2     in      cmt in
  89         //              pa3-6   in      printer ctrl
  90         //              pa7     in      crtc disptmg
  91         //              pb0-7   out     printer data
  92         //              pc0     out     printer strobe
  93         //              pc1     out     printer reset
  94         //              pc2     out     cmt out
  95         //              pc3     out     cmt remote
  96         //              pc4     out     psg we
  97         //              pc5     out     psg cs
  98         //              pc6     out     display chr/cg (0=chr,1=cg)
  99         //              pc7     out     display freq (0=80column,1=40column)
 100         //      0c-0f   in/ou   pio3
 101         //              pa0-6   in      fdc control
 102         //              pb0-3   in/out  rtc data
 103         //              pc0-3   out     rtc address
 104         //              pc4     out     rtc hold
 105         //              pc5     out     rtc rd
 106         //              pc6     out     rtc wr
 107         //              pc7     out     rtc cs
 108         drec->set_context_ear(pio2, SIG_I8255_PORT_A, 4);
 109         crtc->set_context_disp(pio2, SIG_I8255_PORT_A, 0x80);
 110         pio1->set_context_port_a(display, SIG_DISPLAY_ADDR_L, 0xff, 0);
 111         pio1->set_context_port_a(psg, SIG_SN76489AN_DATA, 0xff, 0);
 112         pio1->set_context_port_c(display, SIG_DISPLAY_ADDR_H, 7, 0);
 113         pio2->set_context_port_c(drec, SIG_DATAREC_MIC, 4, 0);
 114         pio2->set_context_port_c(drec, SIG_DATAREC_REMOTE, 8, 0);
 115         pio2->set_context_port_c(psg, SIG_SN76489AN_WE, 0x10, 0);
 116         pio2->set_context_port_c(psg, SIG_SN76489AN_CS, 0x20, 0);
 117         pio2->set_context_port_c(display, SIG_DISPLAY_MODE, 0xc0, 0);
 118         pio3->set_context_port_b(rtc, SIG_MSM58321_DATA, 0x0f, 0);
 119         pio3->set_context_port_c(rtc, SIG_MSM5832_ADDR, 0x0f, 0);
 120         pio3->set_context_port_c(rtc, SIG_MSM5832_HOLD, 0x10, 0);
 121         pio3->set_context_port_c(rtc, SIG_MSM58321_READ, 0x20, 0);
 122         pio3->set_context_port_c(rtc, SIG_MSM58321_WRITE, 0x40, 0);
 123         pio3->set_context_port_c(rtc, SIG_MSM58321_CS, 0x80, 0);
 124         rtc->set_context_data(pio3, SIG_I8255_PORT_B, 0x0f, 0);
 125
 126         display->set_context_crtc(crtc);
 127         display->set_regs_ptr(crtc->get_regs());
 128         keyboard->set_context_cpu(cpu);
 129         keyboard->set_context_pio1(pio1);
 130         keyboard->set_context_pio2(pio2);
 131
 132         // cpu bus
 133         cpu->set_context_mem(memory);
 134         cpu->set_context_io(io);
 135         cpu->set_context_intr(dummy);
 136 #ifdef USE_DEBUGGER
 137         cpu->set_context_debugger(new DEBUGGER(this, emu));
 138 #endif
 139
 140         // i/o bus
 141         io->set_iomap_single_w(0x00, memory);
 142         io->set_iomap_single_rw(0x01, display);
 143         io->set_iomap_range_rw(0x02, 0x03, crtc);
 144         io->set_iomap_range_rw(0x04, 0x07, pio1);
 145         io->set_iomap_range_rw(0x08, 0x0b, pio2);
 146         io->set_iomap_range_rw(0x0c, 0x0f, pio3);
 147
 148         // initialize all devices
 149         for(DEVICE* device = first_device; device; device = device->next_device) {
 150                 device->initialize();
 151         }
 152         decl_state();
 153 }
 154
 155 VM::~VM()
 156 {
 157         // delete all devices
 158         for(DEVICE* device = first_device; device;) {
 159                 DEVICE *next_device = device->next_device;
 160                 device->release();
 161                 delete device;
 162                 device = next_device;
 163         }
 164 }
 165
 166 DEVICE* VM::get_device(int id)
 167 {
 168         for(DEVICE* device = first_device; device; device = device->next_device) {
 169                 if(device->this_device_id == id) {
 170                         return device;
 171                 }
 172         }
 173         return NULL;
 174 }
 175
 176 // ----------------------------------------------------------------------------
 177 // drive virtual machine
 178 // ----------------------------------------------------------------------------
 179
 180 void VM::reset()
 181 {
 182         // reset all devices
 183         for(DEVICE* device = first_device; device; device = device->next_device) {
 184                 device->reset();
 185         }
 186 }
 187
 188 void VM::run()
 189 {
 190         event->drive();
 191 }
 192
 193 double VM::get_frame_rate()
 194 {
 195         return event->get_frame_rate();
 196 }
 197
 198 // ----------------------------------------------------------------------------
 199 // debugger
 200 // ----------------------------------------------------------------------------
 201
 202 #ifdef USE_DEBUGGER
 203 DEVICE *VM::get_cpu(int index)
 204 {
 205         if(index == 0) {
 206                 return cpu;
 207         }
 208         return NULL;
 209 }
 210 #endif
 211
 212 // ----------------------------------------------------------------------------
 213 // draw screen
 214 // ----------------------------------------------------------------------------
 215
 216 void VM::draw_screen()
 217 {
 218         display->draw_screen();
 219 }
 220
 221 // ----------------------------------------------------------------------------
 222 // soud manager
 223 // ----------------------------------------------------------------------------
 224
 225 void VM::initialize_sound(int rate, int samples)
 226 {
 227         // init sound manager
 228         event->initialize_sound(rate, samples);
 229
 230         // init sound gen
 231         psg->initialize_sound(rate, 2500800, 10000);
 232 }
 233
 234 uint16_t* VM::create_sound(int* extra_frames)
 235 {
 236         return event->create_sound(extra_frames);
 237 }
 238
 239 int VM::get_sound_buffer_ptr()
 240 {
 241         return event->get_sound_buffer_ptr();
 242 }
 243
 244 #ifdef USE_SOUND_VOLUME
 245 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 246 {
 247         if(ch == 0) {
 248                 psg->set_volume(0, decibel_l, decibel_r);
 249         } else if(ch == 1) {
 250                 drec->set_volume(0, decibel_l, decibel_r);
 251         } else if(ch == 2) {
 252                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 253                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 254                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 255         }
 256 }
 257 #endif
 258
 259 // ----------------------------------------------------------------------------
 260 // notify key
 261 // ----------------------------------------------------------------------------
 262
 263 void VM::key_down(int code, bool repeat)
 264 {
 265         keyboard->key_down(code);
 266 }
 267
 268 void VM::key_up(int code)
 269 {
 270         keyboard->key_up(code);
 271 }
 272
 273 bool VM::get_caps_locked()
 274 {
 275         return keyboard->get_caps_locked();
 276 }
 277
 278 bool VM::get_kana_locked()
 279 {
 280         return keyboard->get_kana_locked();
 281 }
 282
 283 // ----------------------------------------------------------------------------
 284 // user interface
 285 // ----------------------------------------------------------------------------
 286
 287 void VM::play_tape(int drv, const _TCHAR* file_path)
 288 {
 289         drec->play_tape(file_path);
 290 //      drec->set_remote(true);
 291 }
 292
 293 void VM::rec_tape(int drv, const _TCHAR* file_path)
 294 {
 295         drec->rec_tape(file_path);
 296 //      drec->set_remote(true);
 297 }
 298
 299 void VM::close_tape(int drv)
 300 {
 301         emu->lock_vm();
 302         drec->close_tape();
 303         emu->unlock_vm();
 304 //      drec->set_remote(false);
 305 }
 306
 307 bool VM::is_tape_inserted(int drv)
 308 {
 309         return drec->is_tape_inserted();
 310 }
 311
 312 bool VM::is_tape_playing(int drv)
 313 {
 314         return drec->is_tape_playing();
 315 }
 316
 317 bool VM::is_tape_recording(int drv)
 318 {
 319         return drec->is_tape_recording();
 320 }
 321
 322 int VM::get_tape_position(int drv)
 323 {
 324         return drec->get_tape_position();
 325 }
 326
 327 const _TCHAR* VM::get_tape_message(int drv)
 328 {
 329         return drec->get_message();
 330 }
 331
 332 void VM::push_play(int drv)
 333 {
 334         drec->set_ff_rew(0);
 335         drec->set_remote(true);
 336 }
 337
 338 void VM::push_stop(int drv)
 339 {
 340         drec->set_remote(false);
 341 }
 342
 343 void VM::push_fast_forward(int drv)
 344 {
 345         drec->set_ff_rew(1);
 346         drec->set_remote(true);
 347 }
 348
 349 void VM::push_fast_rewind(int drv)
 350 {
 351         drec->set_ff_rew(-1);
 352         drec->set_remote(true);
 353 }
 354
 355 bool VM::is_frame_skippable()
 356 {
 357         return event->is_frame_skippable();
 358 }
 359
 360 void VM::update_config()
 361 {
 362         for(DEVICE* device = first_device; device; device = device->next_device) {
 363                 device->update_config();
 364         }
 365 }
 366
 367 #define STATE_VERSION   3
 368
 369 #include "../../statesub.h"
 370 #include "../../qt/gui/csp_logger.h"
 371 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 372
 373 void VM::decl_state(void)
 374 {
 375         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::MYCOM_Z80A_HEAD")), csp_logger);
 376         for(DEVICE* device = first_device; device; device = device->next_device) {
 377                 device->decl_state();
 378         }
 379 }
 380
 381 void VM::save_state(FILEIO* state_fio)
 382 {
 383         //state_fio->FputUint32(STATE_VERSION);
 384
 385         if(state_entry != NULL) {
 386                 state_entry->save_state(state_fio);
 387         }
 388         for(DEVICE* device = first_device; device; device = device->next_device) {
 389                 device->save_state(state_fio);
 390         }
 391 }
 392
 393 bool VM::load_state(FILEIO* state_fio)
 394 {
 395         //if(state_fio->FgetUint32() != STATE_VERSION) {
 396         //      return false;
 397         //}
 398         bool mb = false;
 399         if(state_entry != NULL) {
 400                 mb = state_entry->load_state(state_fio);
 401         }
 402         if(!mb) {
 403                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 404                 return false;
 405         }
 406         for(DEVICE* device = first_device; device; device = device->next_device) {
 407                 if(!device->load_state(state_fio)) {
 408                         return false;
 409                 }
 410         }
 411         return true;
 412 }
 413