source/src/vm/pc2001/pc2001.cpp

   1 /*
   2         NEC PC-2001 Emulator 'ePC-2001'
   3
   4         Origin : PockEmul
   5         Author : Takeda.Toshiya
   6         Date   : 2016.03.18-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "pc2001.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../datarec.h"
  17 #include "../memory.h"
  18 #include "../pcm1bit.h"
  19 #include "../upd16434.h"
  20 #include "../upd1990a.h"
  21 #include "../upd7810.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "io.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // initialize
  31 // ----------------------------------------------------------------------------
  32
  33 VM::VM(EMU* parent_emu) : emu(parent_emu)
  34 {
  35         // create devices
  36         first_device = last_device = NULL;
  37         dummy = new DEVICE(this, emu);  // must be 1st device
  38         event = new EVENT(this, emu);   // must be 2nd device
  39 #if defined(_USE_QT)
  40         dummy->set_device_name(_T("1st Dummy"));
  41         event->set_device_name(_T("EVENT"));
  42 #endif
  43
  44         drec = new DATAREC(this, emu);
  45         memory = new MEMORY(this, emu);
  46         pcm = new PCM1BIT(this, emu);
  47         lcd[0] = new UPD16434(this, emu);
  48         lcd[0]->set_device_name(_T("uPD16434 LCD Controller #0"));
  49         lcd[1] = new UPD16434(this, emu);
  50         lcd[1]->set_device_name(_T("uPD16434 LCD Controller #1"));
  51         lcd[2] = new UPD16434(this, emu);
  52         lcd[2]->set_device_name(_T("uPD16434 LCD Controller #2"));
  53         lcd[3] = new UPD16434(this, emu);
  54         lcd[3]->set_device_name(_T("uPD16434 LCD Controller #3"));
  55         rtc = new UPD1990A(this, emu);
  56         cpu = new UPD7810(this, emu);
  57 #if defined(_USE_QT)
  58         lcd[0]->set_device_name(_T("uPD16434 LCD CONTROLLER #1"));
  59         lcd[1]->set_device_name(_T("uPD16434 LCD CONTROLLER #2"));
  60         lcd[2]->set_device_name(_T("uPD16434 LCD CONTROLLER #3"));
  61         lcd[3]->set_device_name(_T("uPD16434 LCD CONTROLLER #4"));
  62         cpu->set_device_name(_T("CPU(uPD7810)"));
  63 #endif
  64
  65         io = new IO(this, emu);
  66 #if defined(_USE_QT)
  67         io->set_device_name(_T("I/O BUS"));
  68 #endif
  69         // set contexts
  70         event->set_context_cpu(cpu);
  71         event->set_context_sound(pcm);
  72         event->set_context_sound(drec);
  73 #if defined(USE_SOUND_FILES)
  74         drec->load_sound_data(DATAREC_SNDFILE_RELAY_ON,  _T("CMTPLAY.WAV"));
  75         drec->load_sound_data(DATAREC_SNDFILE_RELAY_OFF, _T("CMTSTOP.WAV"));
  76         drec->load_sound_data(DATAREC_SNDFILE_EJECT,     _T("CMTEJECT.WAV"));
  77 #endif
  78         drec->set_context_ear(io, SIG_IO_DREC_IN, 1);
  79         rtc->set_context_dout(io, SIG_IO_RTC_IN, 1);
  80         cpu->set_context_to(pcm, SIG_PCM1BIT_SIGNAL, 1);
  81
  82         io->set_context_lcd(0, lcd[0]);
  83         io->set_context_lcd(1, lcd[1]);
  84         io->set_context_lcd(2, lcd[2]);
  85         io->set_context_lcd(3, lcd[3]);
  86         io->set_context_drec(drec);
  87         io->set_context_rtc(rtc);
  88         io->set_context_cpu(cpu);
  89
  90         // memory bus
  91         memset(ram, 0xff, sizeof(ram));
  92 //      memset(ram, 0, sizeof(ram));
  93         memset(rom1, 0xff, sizeof(rom1));
  94         memset(rom2, 0xff, sizeof(rom2));
  95
  96         memory->read_bios(_T("0000-0FFF.ROM"), rom1, sizeof(rom1));
  97         memory->read_bios(_T("2000-5FFF.ROM"), rom2, sizeof(rom2));
  98
  99         memory->set_memory_r(0x0000, 0x0fff, rom1);
 100         memory->set_memory_r(0x2000, 0x5fff, rom2);
 101         memory->set_memory_rw(0xb000, 0xffff, ram);
 102
 103         // cpu bus
 104         cpu->set_context_mem(memory);
 105         cpu->set_context_io(io);
 106 #ifdef USE_DEBUGGER
 107         cpu->set_context_debugger(new DEBUGGER(this, emu));
 108 #endif
 109
 110         // initialize all devices
 111         for(DEVICE* device = first_device; device; device = device->next_device) {
 112                 device->initialize();
 113         }
 114 }
 115
 116 VM::~VM()
 117 {
 118         // delete all devices
 119         for(DEVICE* device = first_device; device;) {
 120                 DEVICE *next_device = device->next_device;
 121                 device->release();
 122                 delete device;
 123                 device = next_device;
 124         }
 125 }
 126
 127 DEVICE* VM::get_device(int id)
 128 {
 129         for(DEVICE* device = first_device; device; device = device->next_device) {
 130                 if(device->this_device_id == id) {
 131                         return device;
 132                 }
 133         }
 134         return NULL;
 135 }
 136
 137 // ----------------------------------------------------------------------------
 138 // drive virtual machine
 139 // ----------------------------------------------------------------------------
 140
 141 void VM::reset()
 142 {
 143         // reset all devices
 144         for(DEVICE* device = first_device; device; device = device->next_device) {
 145                 device->reset();
 146         }
 147 }
 148
 149 void VM::run()
 150 {
 151         event->drive();
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // debugger
 156 // ----------------------------------------------------------------------------
 157
 158 #ifdef USE_DEBUGGER
 159 DEVICE *VM::get_cpu(int index)
 160 {
 161         if(index == 0) {
 162                 return cpu;
 163         }
 164         return NULL;
 165 }
 166 #endif
 167
 168 // ----------------------------------------------------------------------------
 169 // draw screen
 170 // ----------------------------------------------------------------------------
 171
 172 void VM::draw_screen()
 173 {
 174         for(int i = 0; i < 4; i++) {
 175                 lcd[i]->draw(60 * i);
 176         }
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // soud manager
 181 // ----------------------------------------------------------------------------
 182
 183 void VM::initialize_sound(int rate, int samples)
 184 {
 185         // init sound manager
 186         event->initialize_sound(rate, samples);
 187
 188         // init sound gen
 189         pcm->initialize_sound(rate, 8000);
 190 }
 191
 192 uint16_t* VM::create_sound(int* extra_frames)
 193 {
 194         return event->create_sound(extra_frames);
 195 }
 196
 197 int VM::get_sound_buffer_ptr()
 198 {
 199         return event->get_sound_buffer_ptr();
 200 }
 201
 202 #ifdef USE_SOUND_VOLUME
 203 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 204 {
 205         if(ch == 0) {
 206                 pcm->set_volume(0, decibel_l, decibel_r);
 207         } else if(ch == 1) {
 208                 drec->set_volume(0, decibel_l, decibel_r);
 209         }
 210 #if defined(USE_SOUND_FILES)
 211          else if(ch == 2) {
 212                  for(int i = 0; i < DATAREC_SNDFILE_END; i++) {
 213                          drec->set_volume(i + 2, decibel_l, decibel_r);
 214                  }
 215          }
 216 #endif
 217 }
 218 #endif
 219
 220 // ----------------------------------------------------------------------------
 221 // user interface
 222 // ----------------------------------------------------------------------------
 223
 224 void VM::play_tape(const _TCHAR* file_path)
 225 {
 226         drec->play_tape(file_path);
 227         drec->write_signal(SIG_DATAREC_REMOTE, 1, 1);
 228 }
 229
 230 void VM::rec_tape(const _TCHAR* file_path)
 231 {
 232         drec->rec_tape(file_path);
 233         drec->write_signal(SIG_DATAREC_REMOTE, 1, 1);
 234 }
 235
 236 void VM::close_tape()
 237 {
 238 #if defined(USE_SOUND_FILES)
 239         drec->write_signal(SIG_SOUNDER_ADD + DATAREC_SNDFILE_EJECT, 1, 1);
 240 #endif
 241         emu->lock_vm();
 242         drec->close_tape();
 243         emu->unlock_vm();
 244         drec->write_signal(SIG_DATAREC_REMOTE, 0, 0);
 245 }
 246
 247 bool VM::is_tape_inserted()
 248 {
 249         return drec->is_tape_inserted();
 250 }
 251
 252 bool VM::is_tape_playing()
 253 {
 254         return drec->is_tape_playing();
 255 }
 256
 257 bool VM::is_tape_recording()
 258 {
 259         return drec->is_tape_recording();
 260 }
 261
 262 int VM::get_tape_position()
 263 {
 264         return drec->get_tape_position();
 265 }
 266
 267 bool VM::is_frame_skippable()
 268 {
 269         return event->is_frame_skippable();
 270 }
 271
 272 void VM::update_config()
 273 {
 274         for(DEVICE* device = first_device; device; device = device->next_device) {
 275                 device->update_config();
 276         }
 277 }
 278
 279 #define STATE_VERSION   1
 280
 281 void VM::save_state(FILEIO* state_fio)
 282 {
 283         state_fio->FputUint32(STATE_VERSION);
 284
 285         for(DEVICE* device = first_device; device; device = device->next_device) {
 286                 device->save_state(state_fio);
 287         }
 288         state_fio->Fwrite(ram, sizeof(ram), 1);
 289 }
 290
 291 bool VM::load_state(FILEIO* state_fio)
 292 {
 293         if(state_fio->FgetUint32() != STATE_VERSION) {
 294                 return false;
 295         }
 296         for(DEVICE* device = first_device; device; device = device->next_device) {
 297                 if(!device->load_state(state_fio)) {
 298                         return false;
 299                 }
 300         }
 301         state_fio->Fread(ram, sizeof(ram), 1);
 302         return true;
 303 }
 304