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         set_git_repo_version(__GIT_REPO_VERSION);
  92 #endif
  93         initialize_devices();
  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 // ----------------------------------------------------------------------------
 116 // drive virtual machine
 117 // ----------------------------------------------------------------------------
 118 void VM::run()
 119 {
 120         event->drive();
 121 }
 122
 123 // ----------------------------------------------------------------------------
 124 // debugger
 125 // ----------------------------------------------------------------------------
 126
 127 #ifdef USE_DEBUGGER
 128 DEVICE *VM::get_cpu(int index)
 129 {
 130         if(index == 0) {
 131                 return cpu;
 132         }
 133         return NULL;
 134 }
 135 #endif
 136
 137 // ----------------------------------------------------------------------------
 138 // draw screen
 139 // ----------------------------------------------------------------------------
 140
 141 void VM::draw_screen()
 142 {
 143         io->draw_screen();
 144 }
 145
 146 // ----------------------------------------------------------------------------
 147 // soud manager
 148 // ----------------------------------------------------------------------------
 149
 150 void VM::initialize_sound(int rate, int samples)
 151 {
 152         // init sound manager
 153         event->initialize_sound(rate, samples);
 154 }
 155
 156 uint16_t* VM::create_sound(int* extra_frames)
 157 {
 158         return event->create_sound(extra_frames);
 159 }
 160
 161 int VM::get_sound_buffer_ptr()
 162 {
 163         return event->get_sound_buffer_ptr();
 164 }
 165
 166 #ifdef USE_SOUND_VOLUME
 167 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 168 {
 169         if(ch == 0) {
 170                 drec->set_volume(0, decibel_l, decibel_r);
 171         } else if(ch == 1) {
 172                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 173                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 174                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 175         }
 176 }
 177 #endif
 178
 179 // ----------------------------------------------------------------------------
 180 // notify key
 181 // ----------------------------------------------------------------------------
 182
 183 void VM::key_down(int code, bool repeat)
 184 {
 185         if(!repeat) {
 186                 io->key_down(code);
 187         }
 188 }
 189
 190 void VM::key_up(int code)
 191 {
 192         io->key_up();
 193 }
 194
 195 // ----------------------------------------------------------------------------
 196 // user interface
 197 // ----------------------------------------------------------------------------
 198
 199 void VM::play_tape(int drv, const _TCHAR* file_path)
 200 {
 201         io->close_tape();
 202
 203         bool remote = drec->get_remote();
 204
 205         if(drec->play_tape(file_path) && remote) {
 206                 // if machine already sets remote on, start playing now
 207                 push_play(drv);
 208         }
 209 }
 210
 211 void VM::rec_tape(int drv, const _TCHAR* file_path)
 212 {
 213         emu->lock_vm();
 214         drec->close_tape();
 215         emu->unlock_vm();
 216         drec->set_remote(false);
 217         io->rec_tape(file_path);
 218 }
 219
 220 void VM::close_tape(int drv)
 221 {
 222         emu->lock_vm();
 223         drec->close_tape();
 224         emu->unlock_vm();
 225         drec->set_remote(false);
 226
 227         io->close_tape();
 228 }
 229
 230 bool VM::is_tape_inserted(int drv)
 231 {
 232         return drec->is_tape_inserted() || io->is_tape_inserted();
 233 }
 234
 235 bool VM::is_tape_playing(int drv)
 236 {
 237         if(drec->is_tape_inserted()) {
 238                 return drec->is_tape_playing();
 239         } else {
 240                 return io->is_tape_playing();
 241         }
 242 }
 243
 244 bool VM::is_tape_recording(int drv)
 245 {
 246         if(drec->is_tape_inserted()) {
 247                 return drec->is_tape_recording();
 248         } else {
 249                 return io->is_tape_recording();
 250         }
 251 }
 252
 253 int VM::get_tape_position(int drv)
 254 {
 255         if(drec->is_tape_inserted()) {
 256                 return drec->get_tape_position();
 257         } else {
 258                 return io->get_tape_position();
 259         }
 260 }
 261
 262 const _TCHAR* VM::get_tape_message(int drv)
 263 {
 264         if(drec->is_tape_inserted()) {
 265                 return drec->get_message();
 266         } else {
 267                 return NULL;
 268         }
 269 }
 270
 271 void VM::push_play(int drv)
 272 {
 273         if(drec->is_tape_inserted()) {
 274                 drec->set_remote(false);
 275                 drec->set_ff_rew(0);
 276                 drec->set_remote(true);
 277         }
 278 }
 279
 280 void VM::push_stop(int drv)
 281 {
 282         if(drec->is_tape_inserted()) {
 283                 drec->set_remote(false);
 284         }
 285 }
 286
 287 void VM::push_fast_forward(int drv)
 288 {
 289         if(drec->is_tape_inserted()) {
 290                 drec->set_remote(false);
 291                 drec->set_ff_rew(1);
 292                 drec->set_remote(true);
 293         }
 294 }
 295
 296 void VM::push_fast_rewind(int drv)
 297 {
 298         if(drec->is_tape_inserted()) {
 299                 drec->set_remote(false);
 300                 drec->set_ff_rew(-1);
 301                 drec->set_remote(true);
 302         }
 303 }
 304
 305 bool VM::is_frame_skippable()
 306 {
 307         return event->is_frame_skippable();
 308 }
 309
 310
 311 double VM::get_current_usec()
 312 {
 313         __UNLIKELY_IF(event == NULL) return 0.0;
 314         return event->get_current_usec();
 315 }
 316
 317 uint64_t VM::get_current_clock_uint64()
 318 {
 319         __UNLIKELY_IF(event == NULL) return (uint64_t)0;
 320         return event->get_current_clock_uint64();
 321 }
 322
 323 #define STATE_VERSION   3
 324
 325 bool VM::process_state(FILEIO* state_fio, bool loading)
 326 {
 327         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
 328                 return false;
 329         }
 330         state_fio->StateArray(ram, sizeof(ram), 1);
 331         return true;
 332 }