source/src/vm/hc40/hc40.cpp

   1 /*
   2         EPSON HC-40 Emulator 'eHC-40'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2008.02.23 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "hc40.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../beep.h"
  16 #include "../datarec.h"
  17 #include "../noise.h"
  18 #include "../ptf20.h"
  19 #include "../z80.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "io.h"
  26 #include "memory.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // initialize
  30 // ----------------------------------------------------------------------------
  31
  32 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  33 {
  34         // create devices
  35         first_device = last_device = NULL;
  36         dummy = new DEVICE(this, emu);  // must be 1st device
  37         event = new EVENT(this, emu);   // must be 2nd device
  38         dummy->set_device_name(_T("1st Dummy"));
  39
  40         beep = new BEEP(this, emu);
  41         drec = new DATAREC(this, emu);
  42         drec->set_context_noise_play(new NOISE(this, emu));
  43         drec->set_context_noise_stop(new NOISE(this, emu));
  44         drec->set_context_noise_fast(new NOISE(this, emu));
  45         tf20 = new PTF20(this, emu);
  46         cpu = new Z80(this, emu);
  47
  48         io = new IO(this, emu);
  49         memory = new MEMORY(this, emu);
  50         // set contexts
  51         event->set_context_cpu(cpu);
  52         event->set_context_sound(beep);
  53         event->set_context_sound(drec);
  54         event->set_context_sound(drec->get_context_noise_play());
  55         event->set_context_sound(drec->get_context_noise_stop());
  56         event->set_context_sound(drec->get_context_noise_fast());
  57
  58         drec->set_context_ear(io, SIG_IO_DREC, 1);
  59         tf20->set_context_sio(io, SIG_IO_ART);
  60
  61         io->set_context_cpu(cpu);
  62         io->set_context_mem(memory, memory->get_ram());
  63         io->set_context_tf20(tf20);
  64         io->set_context_beep(beep);
  65         io->set_context_drec(drec);
  66
  67         // cpu bus
  68         cpu->set_context_mem(memory);
  69         cpu->set_context_io(io);
  70         cpu->set_context_intr(io);
  71 #ifdef USE_DEBUGGER
  72         cpu->set_context_debugger(new DEBUGGER(this, emu));
  73 #endif
  74
  75         // initialize all devices
  76         for(DEVICE* device = first_device; device; device = device->next_device) {
  77                 device->initialize();
  78         }
  79         decl_state();
  80 }
  81
  82 VM::~VM()
  83 {
  84         // delete all devices
  85         for(DEVICE* device = first_device; device;) {
  86                 DEVICE *next_device = device->next_device;
  87                 device->release();
  88                 delete device;
  89                 device = next_device;
  90         }
  91 }
  92
  93 DEVICE* VM::get_device(int id)
  94 {
  95         for(DEVICE* device = first_device; device; device = device->next_device) {
  96                 if(device->this_device_id == id) {
  97                         return device;
  98                 }
  99         }
 100         return NULL;
 101 }
 102
 103 // ----------------------------------------------------------------------------
 104 // drive virtual machine
 105 // ----------------------------------------------------------------------------
 106
 107 void VM::reset()
 108 {
 109         // reset all devices
 110         for(DEVICE* device = first_device; device; device = device->next_device) {
 111                 device->reset();
 112         }
 113 }
 114
 115 void VM::special_reset()
 116 {
 117         // system reset
 118         for(DEVICE* device = first_device; device; device = device->next_device) {
 119                 device->reset();
 120         }
 121         io->sysreset();
 122 }
 123
 124 void VM::run()
 125 {
 126         event->drive();
 127 }
 128
 129 // ----------------------------------------------------------------------------
 130 // debugger
 131 // ----------------------------------------------------------------------------
 132
 133 #ifdef USE_DEBUGGER
 134 DEVICE *VM::get_cpu(int index)
 135 {
 136         if(index == 0) {
 137                 return cpu;
 138         }
 139         return NULL;
 140 }
 141 #endif
 142
 143 // ----------------------------------------------------------------------------
 144 // draw screen
 145 // ----------------------------------------------------------------------------
 146
 147 void VM::draw_screen()
 148 {
 149         io->draw_screen();
 150 }
 151
 152 // ----------------------------------------------------------------------------
 153 // soud manager
 154 // ----------------------------------------------------------------------------
 155
 156 void VM::initialize_sound(int rate, int samples)
 157 {
 158         // init sound manager
 159         event->initialize_sound(rate, samples);
 160
 161         // init sound gen
 162         beep->initialize_sound(rate, 1000, 8000);
 163 }
 164
 165 uint16_t* VM::create_sound(int* extra_frames)
 166 {
 167         return event->create_sound(extra_frames);
 168 }
 169
 170 int VM::get_sound_buffer_ptr()
 171 {
 172         return event->get_sound_buffer_ptr();
 173 }
 174
 175 #ifdef USE_SOUND_VOLUME
 176 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 177 {
 178         if(ch == 0) {
 179                 beep->set_volume(0, decibel_l, decibel_r);
 180         } else if(ch == 1) {
 181                 drec->set_volume(0, decibel_l, decibel_r);
 182         } else if(ch == 2) {
 183                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 184                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 185                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 186         }
 187 }
 188 #endif
 189
 190 // ----------------------------------------------------------------------------
 191 // notify key
 192 // ----------------------------------------------------------------------------
 193
 194 void VM::key_down(int code, bool repeat)
 195 {
 196         io->key_down(code);
 197 }
 198
 199 void VM::key_up(int code)
 200 {
 201         io->key_up(code);
 202 }
 203
 204 // ----------------------------------------------------------------------------
 205 // user interface
 206 // ----------------------------------------------------------------------------
 207
 208 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 209 {
 210         tf20->open_disk(drv, file_path, bank);
 211 }
 212
 213 void VM::close_floppy_disk(int drv)
 214 {
 215         tf20->close_disk(drv);
 216 }
 217
 218 bool VM::is_floppy_disk_inserted(int drv)
 219 {
 220         return tf20->is_disk_inserted(drv);
 221 }
 222
 223 void VM::is_floppy_disk_protected(int drv, bool value)
 224 {
 225         tf20->is_disk_protected(drv, value);
 226 }
 227
 228 bool VM::is_floppy_disk_protected(int drv)
 229 {
 230         return tf20->is_disk_protected(drv);
 231 }
 232
 233 uint32_t VM::is_floppy_disk_accessed()
 234 {
 235         return tf20->read_signal(0);
 236 }
 237
 238 void VM::play_tape(int drv, const _TCHAR* file_path)
 239 {
 240         drec->play_tape(file_path);
 241 //      drec->set_remote(true);
 242 }
 243
 244 void VM::rec_tape(int drv, const _TCHAR* file_path)
 245 {
 246         drec->rec_tape(file_path);
 247 //      drec->set_remote(true);
 248 }
 249
 250 void VM::close_tape(int drv)
 251 {
 252         emu->lock_vm();
 253         drec->close_tape();
 254         emu->unlock_vm();
 255 //      drec->set_remote(false);
 256 }
 257
 258 bool VM::is_tape_inserted(int drv)
 259 {
 260         return drec->is_tape_inserted();
 261 }
 262
 263 bool VM::is_tape_playing(int drv)
 264 {
 265         return drec->is_tape_playing();
 266 }
 267
 268 bool VM::is_tape_recording(int drv)
 269 {
 270         return drec->is_tape_recording();
 271 }
 272
 273 int VM::get_tape_position(int drv)
 274 {
 275         return drec->get_tape_position();
 276 }
 277
 278 const _TCHAR* VM::get_tape_message(int drv)
 279 {
 280         return drec->get_message();
 281 }
 282
 283 void VM::push_play(int drv)
 284 {
 285         drec->set_ff_rew(0);
 286         drec->set_remote(true);
 287 }
 288
 289 void VM::push_stop(int drv)
 290 {
 291         drec->set_remote(false);
 292 }
 293
 294 void VM::push_fast_forward(int drv)
 295 {
 296         drec->set_ff_rew(1);
 297         drec->set_remote(true);
 298 }
 299
 300 void VM::push_fast_rewind(int drv)
 301 {
 302         drec->set_ff_rew(-1);
 303         drec->set_remote(true);
 304 }
 305
 306 bool VM::is_frame_skippable()
 307 {
 308         return event->is_frame_skippable();
 309 }
 310
 311 void VM::update_config()
 312 {
 313         for(DEVICE* device = first_device; device; device = device->next_device) {
 314                 device->update_config();
 315         }
 316 }
 317
 318 #define STATE_VERSION   3
 319
 320 #include "../../statesub.h"
 321 #include "../../qt/gui/csp_logger.h"
 322 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 323
 324 void VM::decl_state(void)
 325 {
 326         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::HC_40_HEAD")), csp_logger);
 327         for(DEVICE* device = first_device; device; device = device->next_device) {
 328                 device->decl_state();
 329         }
 330 }
 331
 332 void VM::save_state(FILEIO* state_fio)
 333 {
 334         //state_fio->FputUint32(STATE_VERSION);
 335
 336         if(state_entry != NULL) {
 337                 state_entry->save_state(state_fio);
 338         }
 339         for(DEVICE* device = first_device; device; device = device->next_device) {
 340                 device->save_state(state_fio);
 341         }
 342 }
 343
 344 bool VM::load_state(FILEIO* state_fio)
 345 {
 346         //if(state_fio->FgetUint32() != STATE_VERSION) {
 347         //      return false;
 348         //}
 349         bool mb = false;
 350         if(state_entry != NULL) {
 351                 mb = state_entry->load_state(state_fio);
 352         }
 353         if(!mb) {
 354                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 355                 return false;
 356         }
 357         for(DEVICE* device = first_device; device; device = device->next_device) {
 358                 if(!device->load_state(state_fio)) {
 359                         return false;
 360                 }
 361         }
 362         return true;
 363 }
 364