source/src/vm/fp200/fp200.cpp

   1 /*
   2         CASIO FP-200 Emulator 'eFP-200'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2013.03.21-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "fp200.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../i8080.h"
  17 #include "../memory.h"
  18 #include "../noise.h"
  19 #include "../rp5c01.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "./io.h"
  26
  27 // ----------------------------------------------------------------------------
  28 // initialize
  29 // ----------------------------------------------------------------------------
  30 using FP200::IO;
  31
  32 VM::VM(EMU_TEMPLATE* 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         drec = new DATAREC(this, emu);
  41         drec->set_context_noise_play(new NOISE(this, emu));
  42         drec->set_context_noise_stop(new NOISE(this, emu));
  43         drec->set_context_noise_fast(new NOISE(this, emu));
  44         cpu = new I8080(this, emu);     // i8085
  45         memory = new MEMORY(this, emu);
  46
  47         rtc = new RP5C01(this, emu);
  48
  49         io = new IO(this, emu);
  50         // set contexts
  51         event->set_context_cpu(cpu);
  52         event->set_context_sound(drec);
  53         event->set_context_sound(drec->get_context_noise_play());
  54         event->set_context_sound(drec->get_context_noise_stop());
  55         event->set_context_sound(drec->get_context_noise_fast());
  56
  57         drec->set_context_ear(io, SIG_IO_CMT, 1);
  58         cpu->set_context_sod(io, SIG_IO_SOD, 1);
  59
  60         io->set_context_cpu(cpu);
  61         io->set_context_drec(drec);
  62         io->set_context_rtc(rtc);
  63
  64         // cpu bus
  65         cpu->set_context_mem(memory);
  66         cpu->set_context_io(io);
  67         cpu->set_context_intr(io);
  68 #ifdef USE_DEBUGGER
  69         cpu->set_context_debugger(new DEBUGGER(this, emu));
  70 #endif
  71
  72         // memory bus
  73         memset(rom, 0xff, sizeof(rom));
  74         memset(ram, 0, sizeof(ram));
  75
  76         memory->read_bios(_T("BIOS.ROM"), rom, sizeof(rom));
  77
  78         FILEIO* fio = new FILEIO();
  79         if(fio->Fopen(create_local_path(_T("RAM.BIN")), FILEIO_READ_BINARY)) {
  80                 fio->Fread(ram, sizeof(ram), 1);
  81                 fio->Fclose();
  82         }
  83         delete fio;
  84
  85         memory->set_memory_r(0x0000, 0x7fff, rom);
  86         memory->set_memory_rw(0x8000, 0xffff, ram);
  87         memory->set_wait_rw(0x0000, 0xffff, 1);
  88
  89         // initialize all devices
  90 #if defined(__GIT_REPO_VERSION)
  91         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  92 #endif
  93         for(DEVICE* device = first_device; device; device = device->next_device) {
  94                 device->initialize();
  95         }
  96 }
  97
  98 VM::~VM()
  99 {
 100         FILEIO* fio = new FILEIO();
 101         if(fio->Fopen(create_local_path(_T("RAM.BIN")), FILEIO_WRITE_BINARY)) {
 102                 fio->Fwrite(ram, sizeof(ram), 1);
 103                 fio->Fclose();
 104         }
 105         delete fio;
 106
 107         // delete all devices
 108         for(DEVICE* device = first_device; device;) {
 109                 DEVICE *next_device = device->next_device;
 110                 device->release();
 111                 delete device;
 112                 device = next_device;
 113         }
 114 }
 115
 116 DEVICE* VM::get_device(int id)
 117 {
 118         for(DEVICE* device = first_device; device; device = device->next_device) {
 119                 if(device->this_device_id == id) {
 120                         return device;
 121                 }
 122         }
 123         return NULL;
 124 }
 125
 126 // ----------------------------------------------------------------------------
 127 // drive virtual machine
 128 // ----------------------------------------------------------------------------
 129
 130 void VM::reset()
 131 {
 132         // reset all devices
 133         for(DEVICE* device = first_device; device; device = device->next_device) {
 134                 device->reset();
 135         }
 136 }
 137
 138 void VM::run()
 139 {
 140         event->drive();
 141 }
 142
 143 // ----------------------------------------------------------------------------
 144 // debugger
 145 // ----------------------------------------------------------------------------
 146
 147 #ifdef USE_DEBUGGER
 148 DEVICE *VM::get_cpu(int index)
 149 {
 150         if(index == 0) {
 151                 return cpu;
 152         }
 153         return NULL;
 154 }
 155 #endif
 156
 157 // ----------------------------------------------------------------------------
 158 // draw screen
 159 // ----------------------------------------------------------------------------
 160
 161 void VM::draw_screen()
 162 {
 163         io->draw_screen();
 164 }
 165
 166 // ----------------------------------------------------------------------------
 167 // soud manager
 168 // ----------------------------------------------------------------------------
 169
 170 void VM::initialize_sound(int rate, int samples)
 171 {
 172         // init sound manager
 173         event->initialize_sound(rate, samples);
 174 }
 175
 176 uint16_t* VM::create_sound(int* extra_frames)
 177 {
 178         return event->create_sound(extra_frames);
 179 }
 180
 181 int VM::get_sound_buffer_ptr()
 182 {
 183         return event->get_sound_buffer_ptr();
 184 }
 185
 186 #ifdef USE_SOUND_VOLUME
 187 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 188 {
 189         if(ch == 0) {
 190                 drec->set_volume(0, decibel_l, decibel_r);
 191         } else if(ch == 1) {
 192                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 193                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 194                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 195         }
 196 }
 197 #endif
 198
 199 // ----------------------------------------------------------------------------
 200 // notify key
 201 // ----------------------------------------------------------------------------
 202
 203 void VM::key_down(int code, bool repeat)
 204 {
 205         if(!repeat) {
 206                 io->key_down(code);
 207         }
 208 }
 209
 210 void VM::key_up(int code)
 211 {
 212         io->key_up();
 213 }
 214
 215 // ----------------------------------------------------------------------------
 216 // user interface
 217 // ----------------------------------------------------------------------------
 218
 219 void VM::play_tape(int drv, const _TCHAR* file_path)
 220 {
 221         io->close_tape();
 222
 223         bool remote = drec->get_remote();
 224
 225         if(drec->play_tape(file_path) && remote) {
 226                 // if machine already sets remote on, start playing now
 227                 push_play(drv);
 228         }
 229 }
 230
 231 void VM::rec_tape(int drv, const _TCHAR* file_path)
 232 {
 233         emu->lock_vm();
 234         drec->close_tape();
 235         emu->unlock_vm();
 236         drec->set_remote(false);
 237         io->rec_tape(file_path);
 238 }
 239
 240 void VM::close_tape(int drv)
 241 {
 242         emu->lock_vm();
 243         drec->close_tape();
 244         emu->unlock_vm();
 245         drec->set_remote(false);
 246
 247         io->close_tape();
 248 }
 249
 250 bool VM::is_tape_inserted(int drv)
 251 {
 252         return drec->is_tape_inserted() || io->is_tape_inserted();
 253 }
 254
 255 bool VM::is_tape_playing(int drv)
 256 {
 257         if(drec->is_tape_inserted()) {
 258                 return drec->is_tape_playing();
 259         } else {
 260                 return io->is_tape_playing();
 261         }
 262 }
 263
 264 bool VM::is_tape_recording(int drv)
 265 {
 266         if(drec->is_tape_inserted()) {
 267                 return drec->is_tape_recording();
 268         } else {
 269                 return io->is_tape_recording();
 270         }
 271 }
 272
 273 int VM::get_tape_position(int drv)
 274 {
 275         if(drec->is_tape_inserted()) {
 276                 return drec->get_tape_position();
 277         } else {
 278                 return io->get_tape_position();
 279         }
 280 }
 281
 282 const _TCHAR* VM::get_tape_message(int drv)
 283 {
 284         if(drec->is_tape_inserted()) {
 285                 return drec->get_message();
 286         } else {
 287                 return NULL;
 288         }
 289 }
 290
 291 void VM::push_play(int drv)
 292 {
 293         if(drec->is_tape_inserted()) {
 294                 drec->set_remote(false);
 295                 drec->set_ff_rew(0);
 296                 drec->set_remote(true);
 297         }
 298 }
 299
 300 void VM::push_stop(int drv)
 301 {
 302         if(drec->is_tape_inserted()) {
 303                 drec->set_remote(false);
 304         }
 305 }
 306
 307 void VM::push_fast_forward(int drv)
 308 {
 309         if(drec->is_tape_inserted()) {
 310                 drec->set_remote(false);
 311                 drec->set_ff_rew(1);
 312                 drec->set_remote(true);
 313         }
 314 }
 315
 316 void VM::push_fast_rewind(int drv)
 317 {
 318         if(drec->is_tape_inserted()) {
 319                 drec->set_remote(false);
 320                 drec->set_ff_rew(-1);
 321                 drec->set_remote(true);
 322         }
 323 }
 324
 325 bool VM::is_frame_skippable()
 326 {
 327         return event->is_frame_skippable();
 328 }
 329
 330 void VM::update_config()
 331 {
 332         for(DEVICE* device = first_device; device; device = device->next_device) {
 333                 device->update_config();
 334         }
 335 }
 336
 337 double VM::get_current_usec()
 338 {
 339         if(event == NULL) return 0.0;
 340         return event->get_current_usec();
 341 }
 342
 343 uint64_t VM::get_current_clock_uint64()
 344 {
 345                 if(event == NULL) return (uint64_t)0;
 346                 return event->get_current_clock_uint64();
 347 }
 348
 349 #define STATE_VERSION   3
 350
 351 bool VM::process_state(FILEIO* state_fio, bool loading)
 352 {
 353         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 354                 return false;
 355         }
 356         for(DEVICE* device = first_device; device; device = device->next_device) {
 357                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 358                 // const char *name = typeid(*device).name();
 359                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 360                 const char *name = device->get_device_name();
 361                 int len = strlen(name);
 362
 363                 if(!state_fio->StateCheckInt32(len)) {
 364                         if(loading) {
 365                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 366                         }
 367                         return false;
 368                 }
 369                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 370                         if(loading) {
 371                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 372                         }
 373                         return false;
 374                 }
 375                 if(!device->process_state(state_fio, loading)) {
 376                         if(loading) {
 377                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 378                         }
 379                         return false;
 380                 }
 381         }
 382         state_fio->StateArray(ram, sizeof(ram), 1);
 383         return true;
 384 }