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 "../rp5c01.h"
  19
  20 #ifdef USE_DEBUGGER
  21 #include "../debugger.h"
  22 #endif
  23
  24 #include "io.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // initialize
  28 // ----------------------------------------------------------------------------
  29
  30 VM::VM(EMU* parent_emu) : emu(parent_emu)
  31 {
  32         // create devices
  33         first_device = last_device = NULL;
  34         dummy = new DEVICE(this, emu);  // must be 1st device
  35         event = new EVENT(this, emu);   // must be 2nd device
  36 #if defined(_USE_QT)
  37         dummy->set_device_name(_T("1st Dummy"));
  38         event->set_device_name(_T("EVENT"));
  39 #endif
  40         drec = new DATAREC(this, emu);
  41         cpu = new I8080(this, emu);     // i8085
  42         memory = new MEMORY(this, emu);
  43         rtc = new RP5C01(this, emu);
  44
  45         io = new IO(this, emu);
  46 #if defined(_USE_QT)
  47         cpu->set_device_name(_T("CPU(i8080)"));
  48         memory->set_device_name(_T("MEMORY"));
  49         rtc->set_device_name(_T("RP5C01 RTC"));
  50 #endif
  51         // set contexts
  52         event->set_context_cpu(cpu);
  53         event->set_context_sound(drec);
  54 #if defined(USE_SOUND_FILES)
  55         drec->load_sound_data(DATAREC_SNDFILE_PLAY,  _T("CMTPLAY.WAV"));
  56         drec->load_sound_data(DATAREC_SNDFILE_STOP,  _T("CMTSTOP.WAV"));
  57         drec->load_sound_data(DATAREC_SNDFILE_EJECT, _T("CMTEJECT.WAV"));
  58 #endif
  59
  60         drec->set_context_ear(io, SIG_IO_CMT, 1);
  61         cpu->set_context_sod(io, SIG_IO_SOD, 1);
  62
  63         io->set_context_cpu(cpu);
  64         io->set_context_drec(drec);
  65         io->set_context_rtc(rtc);
  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         // memory bus
  76         memset(rom, 0xff, sizeof(rom));
  77         memset(ram, 0, sizeof(ram));
  78
  79         memory->read_bios(_T("BIOS.ROM"), rom, sizeof(rom));
  80
  81         FILEIO* fio = new FILEIO();
  82         if(fio->Fopen(create_local_path(_T("RAM.BIN")), FILEIO_READ_BINARY)) {
  83                 fio->Fread(ram, sizeof(ram), 1);
  84                 fio->Fclose();
  85         }
  86         delete fio;
  87
  88         memory->set_memory_r(0x0000, 0x7fff, rom);
  89         memory->set_memory_rw(0x8000, 0xffff, ram);
  90         memory->set_wait_rw(0x0000, 0xffff, 1);
  91
  92         // initialize all devices
  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         }
 192 #if defined(USE_SOUND_FILES)
 193         else if(ch == 1) {
 194                 drec->set_volume(2 + DATAREC_SNDFILE_EJECT, decibel_l, decibel_r);
 195         }
 196 #endif
 197 }
 198 #endif
 199
 200 // ----------------------------------------------------------------------------
 201 // notify key
 202 // ----------------------------------------------------------------------------
 203
 204 void VM::key_down(int code, bool repeat)
 205 {
 206         if(!repeat) {
 207                 io->key_down(code);
 208         }
 209 }
 210
 211 void VM::key_up(int code)
 212 {
 213         io->key_up();
 214 }
 215
 216 // ----------------------------------------------------------------------------
 217 // user interface
 218 // ----------------------------------------------------------------------------
 219
 220 void VM::play_tape(const _TCHAR* file_path)
 221 {
 222         io->close_tape();
 223         drec->play_tape(file_path);
 224 }
 225
 226 void VM::rec_tape(const _TCHAR* file_path)
 227 {
 228         drec->close_tape();
 229         io->rec_tape(file_path);
 230 }
 231
 232 void VM::close_tape()
 233 {
 234 #if defined(USE_SOUND_FILES)
 235         drec->write_signal(SIG_SOUNDER_ADD + DATAREC_SNDFILE_EJECT, 1, 1);
 236 #endif
 237         emu->lock_vm();
 238         drec->close_tape();
 239         emu->unlock_vm();
 240         io->close_tape();
 241 }
 242
 243 bool VM::is_tape_inserted()
 244 {
 245         return drec->is_tape_inserted() || io->is_tape_inserted();
 246 }
 247
 248 bool VM::is_tape_playing()
 249 {
 250         return drec->is_tape_playing();
 251 }
 252
 253 bool VM::is_tape_recording()
 254 {
 255         return drec->is_tape_recording();
 256 }
 257
 258 int VM::get_tape_position()
 259 {
 260         return drec->get_tape_position();
 261 }
 262
 263 bool VM::is_frame_skippable()
 264 {
 265         return event->is_frame_skippable();
 266 }
 267
 268 void VM::update_config()
 269 {
 270         for(DEVICE* device = first_device; device; device = device->next_device) {
 271                 device->update_config();
 272         }
 273 }
 274
 275 #define STATE_VERSION   1
 276
 277 void VM::save_state(FILEIO* state_fio)
 278 {
 279         state_fio->FputUint32(STATE_VERSION);
 280
 281         for(DEVICE* device = first_device; device; device = device->next_device) {
 282                 device->save_state(state_fio);
 283         }
 284         state_fio->Fwrite(ram, sizeof(ram), 1);
 285 }
 286
 287 bool VM::load_state(FILEIO* state_fio)
 288 {
 289         if(state_fio->FgetUint32() != STATE_VERSION) {
 290                 return false;
 291         }
 292         for(DEVICE* device = first_device; device; device = device->next_device) {
 293                 if(!device->load_state(state_fio)) {
 294                         return false;
 295                 }
 296         }
 297         state_fio->Fread(ram, sizeof(ram), 1);
 298         return true;
 299 }
 300