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