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 using HC40::IO;
  29 using HC40::MEMORY;
  30
  31 // ----------------------------------------------------------------------------
  32 // initialize
  33 // ----------------------------------------------------------------------------
  34
  35 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  36 {
  37         // create devices
  38         first_device = last_device = NULL;
  39         dummy = new DEVICE(this, emu);  // must be 1st device
  40         event = new EVENT(this, emu);   // must be 2nd device
  41         dummy->set_device_name(_T("1st Dummy"));
  42
  43         beep = new BEEP(this, emu);
  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         tf20 = new PTF20(this, emu);
  49         cpu = new Z80(this, emu);
  50
  51         io = new IO(this, emu);
  52         memory = new MEMORY(this, emu);
  53         // set contexts
  54         event->set_context_cpu(cpu);
  55         event->set_context_sound(beep);
  56         event->set_context_sound(drec);
  57         event->set_context_sound(drec->get_context_noise_play());
  58         event->set_context_sound(drec->get_context_noise_stop());
  59         event->set_context_sound(drec->get_context_noise_fast());
  60
  61         drec->set_context_ear(io, SIG_IO_DREC, 1);
  62         tf20->set_context_sio(io, SIG_IO_ART);
  63
  64         io->set_context_cpu(cpu);
  65         io->set_context_mem(memory, memory->get_ram());
  66         io->set_context_tf20(tf20);
  67         io->set_context_beep(beep);
  68         io->set_context_drec(drec);
  69
  70         // cpu bus
  71         cpu->set_context_mem(memory);
  72         cpu->set_context_io(io);
  73         cpu->set_context_intr(io);
  74 #ifdef USE_DEBUGGER
  75         cpu->set_context_debugger(new DEBUGGER(this, emu));
  76 #endif
  77
  78         // initialize all devices
  79 #if defined(__GIT_REPO_VERSION)
  80         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  81 #endif
  82         for(DEVICE* device = first_device; device; device = device->next_device) {
  83                 device->initialize();
  84         }
  85 }
  86
  87 VM::~VM()
  88 {
  89         // delete all devices
  90         for(DEVICE* device = first_device; device;) {
  91                 DEVICE *next_device = device->next_device;
  92                 device->release();
  93                 delete device;
  94                 device = next_device;
  95         }
  96 }
  97
  98 DEVICE* VM::get_device(int id)
  99 {
 100         for(DEVICE* device = first_device; device; device = device->next_device) {
 101                 if(device->this_device_id == id) {
 102                         return device;
 103                 }
 104         }
 105         return NULL;
 106 }
 107
 108 // ----------------------------------------------------------------------------
 109 // drive virtual machine
 110 // ----------------------------------------------------------------------------
 111
 112 void VM::reset()
 113 {
 114         // reset all devices
 115         for(DEVICE* device = first_device; device; device = device->next_device) {
 116                 device->reset();
 117         }
 118 }
 119
 120 void VM::special_reset()
 121 {
 122         // system reset
 123         for(DEVICE* device = first_device; device; device = device->next_device) {
 124                 device->reset();
 125         }
 126         io->sysreset();
 127 }
 128
 129 void VM::run()
 130 {
 131         event->drive();
 132 }
 133
 134 // ----------------------------------------------------------------------------
 135 // debugger
 136 // ----------------------------------------------------------------------------
 137
 138 #ifdef USE_DEBUGGER
 139 DEVICE *VM::get_cpu(int index)
 140 {
 141         if(index == 0) {
 142                 return cpu;
 143         }
 144         return NULL;
 145 }
 146 #endif
 147
 148 // ----------------------------------------------------------------------------
 149 // draw screen
 150 // ----------------------------------------------------------------------------
 151
 152 void VM::draw_screen()
 153 {
 154         io->draw_screen();
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // soud manager
 159 // ----------------------------------------------------------------------------
 160
 161 void VM::initialize_sound(int rate, int samples)
 162 {
 163         // init sound manager
 164         event->initialize_sound(rate, samples);
 165
 166         // init sound gen
 167         beep->initialize_sound(rate, 1000, 8000);
 168 }
 169
 170 uint16_t* VM::create_sound(int* extra_frames)
 171 {
 172         return event->create_sound(extra_frames);
 173 }
 174
 175 int VM::get_sound_buffer_ptr()
 176 {
 177         return event->get_sound_buffer_ptr();
 178 }
 179
 180 #ifdef USE_SOUND_VOLUME
 181 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 182 {
 183         if(ch == 0) {
 184                 beep->set_volume(0, decibel_l, decibel_r);
 185         } else if(ch == 1) {
 186                 drec->set_volume(0, decibel_l, decibel_r);
 187         } else if(ch == 2) {
 188                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 189                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 190                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 191         }
 192 }
 193 #endif
 194
 195 // ----------------------------------------------------------------------------
 196 // notify key
 197 // ----------------------------------------------------------------------------
 198
 199 void VM::key_down(int code, bool repeat)
 200 {
 201         io->key_down(code);
 202 }
 203
 204 void VM::key_up(int code)
 205 {
 206         io->key_up(code);
 207 }
 208
 209 // ----------------------------------------------------------------------------
 210 // user interface
 211 // ----------------------------------------------------------------------------
 212
 213 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
 214 {
 215         tf20->open_disk(drv, file_path, bank);
 216 }
 217
 218 void VM::close_floppy_disk(int drv)
 219 {
 220         tf20->close_disk(drv);
 221 }
 222
 223 bool VM::is_floppy_disk_inserted(int drv)
 224 {
 225         return tf20->is_disk_inserted(drv);
 226 }
 227
 228 void VM::is_floppy_disk_protected(int drv, bool value)
 229 {
 230         tf20->is_disk_protected(drv, value);
 231 }
 232
 233 bool VM::is_floppy_disk_protected(int drv)
 234 {
 235         return tf20->is_disk_protected(drv);
 236 }
 237
 238 uint32_t VM::is_floppy_disk_accessed()
 239 {
 240         return tf20->read_signal(0);
 241 }
 242
 243 void VM::play_tape(int drv, const _TCHAR* file_path)
 244 {
 245         drec->play_tape(file_path);
 246 //      drec->set_remote(true);
 247 }
 248
 249 void VM::rec_tape(int drv, const _TCHAR* file_path)
 250 {
 251         drec->rec_tape(file_path);
 252 //      drec->set_remote(true);
 253 }
 254
 255 void VM::close_tape(int drv)
 256 {
 257         emu->lock_vm();
 258         drec->close_tape();
 259         emu->unlock_vm();
 260 //      drec->set_remote(false);
 261 }
 262
 263 bool VM::is_tape_inserted(int drv)
 264 {
 265         return drec->is_tape_inserted();
 266 }
 267
 268 bool VM::is_tape_playing(int drv)
 269 {
 270         return drec->is_tape_playing();
 271 }
 272
 273 bool VM::is_tape_recording(int drv)
 274 {
 275         return drec->is_tape_recording();
 276 }
 277
 278 int VM::get_tape_position(int drv)
 279 {
 280         return drec->get_tape_position();
 281 }
 282
 283 const _TCHAR* VM::get_tape_message(int drv)
 284 {
 285         return drec->get_message();
 286 }
 287
 288 void VM::push_play(int drv)
 289 {
 290         drec->set_ff_rew(0);
 291         drec->set_remote(true);
 292 }
 293
 294 void VM::push_stop(int drv)
 295 {
 296         drec->set_remote(false);
 297 }
 298
 299 void VM::push_fast_forward(int drv)
 300 {
 301         drec->set_ff_rew(1);
 302         drec->set_remote(true);
 303 }
 304
 305 void VM::push_fast_rewind(int drv)
 306 {
 307         drec->set_ff_rew(-1);
 308         drec->set_remote(true);
 309 }
 310
 311 bool VM::is_frame_skippable()
 312 {
 313         return event->is_frame_skippable();
 314 }
 315
 316 void VM::update_config()
 317 {
 318         for(DEVICE* device = first_device; device; device = device->next_device) {
 319                 device->update_config();
 320         }
 321 }
 322
 323 #define STATE_VERSION   3
 324
 325 bool VM::process_state(FILEIO* state_fio, bool loading)
 326 {
 327         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 328                 return false;
 329         }
 330         for(DEVICE* device = first_device; device; device = device->next_device) {
 331                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 332                 // const char *name = typeid(*device).name();
 333                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 334                 const char *name = device->get_device_name();
 335                 int len = strlen(name);
 336
 337                 if(!state_fio->StateCheckInt32(len)) {
 338                         if(loading) {
 339                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 340                         }
 341                         return false;
 342                 }
 343                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 344                         if(loading) {
 345                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 346                         }
 347                         return false;
 348                 }
 349                 if(!device->process_state(state_fio, loading)) {
 350                         if(loading) {
 351                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 352                         }
 353                         return false;
 354                 }
 355         }
 356         return true;
 357 }