source/src/vm/bmjr/bmjr.cpp

   1 /*
   2         HITACH BASIC Master Jr Emulator 'eBASICMasterJr'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.08.28-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "bmjr.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../mc6800.h"
  17 #include "../mc6820.h"
  18 #include "../noise.h"
  19
  20 #ifdef USE_DEBUGGER
  21 #include "../debugger.h"
  22 #endif
  23
  24 #include "memory.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
  37         drec = new DATAREC(this, emu);
  38         drec->set_context_noise_play(new NOISE(this, emu));
  39         drec->set_context_noise_stop(new NOISE(this, emu));
  40         drec->set_context_noise_fast(new NOISE(this, emu));
  41         cpu = new MC6800(this, emu);
  42         pia = new MC6820(this, emu);
  43
  44         memory = new MEMORY(this, emu);
  45
  46         // Set names
  47 #if defined(_USE_QT)
  48         dummy->set_device_name(_T("1st Dummy"));
  49 #endif
  50         // set contexts
  51         event->set_context_cpu(cpu);
  52         event->set_context_sound(drec);
  53         event->set_context_sound(memory);
  54         event->set_context_sound(drec->get_context_noise_play());
  55         event->set_context_sound(drec->get_context_noise_stop());
  56         event->set_context_sound(drec->get_context_noise_fast());
  57
  58         drec->set_context_ear(memory, SIG_MEMORY_DATAREC_EAR, 1);
  59
  60         memory->set_context_drec(drec);
  61         memory->set_context_cpu(cpu);
  62         memory->set_context_pia(pia);
  63
  64         // cpu bus
  65         cpu->set_context_mem(memory);
  66 #ifdef USE_DEBUGGER
  67         cpu->set_context_debugger(new DEBUGGER(this, emu));
  68 #endif
  69
  70         // initialize all devices
  71         for(DEVICE* device = first_device; device; device = device->next_device) {
  72                 device->initialize();
  73         }
  74         decl_state();
  75 }
  76
  77 VM::~VM()
  78 {
  79         // delete all devices
  80         for(DEVICE* device = first_device; device;) {
  81                 DEVICE *next_device = device->next_device;
  82                 device->release();
  83                 delete device;
  84                 device = next_device;
  85         }
  86 }
  87
  88 DEVICE* VM::get_device(int id)
  89 {
  90         for(DEVICE* device = first_device; device; device = device->next_device) {
  91                 if(device->this_device_id == id) {
  92                         return device;
  93                 }
  94         }
  95         return NULL;
  96 }
  97
  98 // ----------------------------------------------------------------------------
  99 // drive virtual machine
 100 // ----------------------------------------------------------------------------
 101
 102 void VM::reset()
 103 {
 104         // reset all devices
 105         for(DEVICE* device = first_device; device; device = device->next_device) {
 106                 device->reset();
 107         }
 108 }
 109
 110 void VM::special_reset()
 111 {
 112         // reset all devices
 113         for(DEVICE* device = first_device; device; device = device->next_device) {
 114                 device->reset();
 115         }
 116 }
 117
 118 void VM::run()
 119 {
 120         event->drive();
 121 }
 122
 123 double VM::get_frame_rate()
 124 {
 125         return event->get_frame_rate();
 126 }
 127
 128 // ----------------------------------------------------------------------------
 129 // debugger
 130 // ----------------------------------------------------------------------------
 131
 132 #ifdef USE_DEBUGGER
 133 DEVICE *VM::get_cpu(int index)
 134 {
 135         if(index == 0) {
 136                 return cpu;
 137         }
 138         return NULL;
 139 }
 140 #endif
 141
 142 // ----------------------------------------------------------------------------
 143 // draw screen
 144 // ----------------------------------------------------------------------------
 145
 146 void VM::draw_screen()
 147 {
 148         memory->draw_screen();
 149 }
 150
 151 // ----------------------------------------------------------------------------
 152 // soud manager
 153 // ----------------------------------------------------------------------------
 154
 155 void VM::initialize_sound(int rate, int samples)
 156 {
 157         // init sound manager
 158         event->initialize_sound(rate, samples);
 159 }
 160
 161 uint16_t* VM::create_sound(int* extra_frames)
 162 {
 163         return event->create_sound(extra_frames);
 164 }
 165
 166 int VM::get_sound_buffer_ptr()
 167 {
 168         return event->get_sound_buffer_ptr();
 169 }
 170
 171 #ifdef USE_SOUND_VOLUME
 172 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 173 {
 174         if(ch == 0) {
 175                 memory->set_volume(0, decibel_l, decibel_r);
 176         } else if(ch == 1) {
 177                 drec->set_volume(0, decibel_l, decibel_r);
 178         } else if(ch == 2) {
 179                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 180                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 181                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 182         }
 183 }
 184 #endif
 185
 186 // ----------------------------------------------------------------------------
 187 // notify key
 188 // ----------------------------------------------------------------------------
 189
 190 void VM::key_down(int code, bool repeat)
 191 {
 192         if(!repeat) {
 193                 memory->key_down(code);
 194         }
 195 }
 196
 197 void VM::key_up(int code)
 198 {
 199 }
 200
 201 // ----------------------------------------------------------------------------
 202 // user interface
 203 // ----------------------------------------------------------------------------
 204
 205 void VM::play_tape(int drv, const _TCHAR* file_path)
 206 {
 207         drec->play_tape(file_path);
 208 //      drec->set_remote(true);
 209 }
 210
 211 void VM::rec_tape(int drv, const _TCHAR* file_path)
 212 {
 213         drec->rec_tape(file_path);
 214 //      drec->set_remote(true);
 215 }
 216
 217 void VM::close_tape(int drv)
 218 {
 219         emu->lock_vm();
 220         drec->close_tape();
 221         emu->unlock_vm();
 222 //      drec->set_remote(false);
 223 }
 224
 225 bool VM::is_tape_inserted(int drv)
 226 {
 227         return drec->is_tape_inserted();
 228 }
 229
 230 bool VM::is_tape_playing(int drv)
 231 {
 232         return drec->is_tape_playing();
 233 }
 234
 235 bool VM::is_tape_recording(int drv)
 236 {
 237         return drec->is_tape_recording();
 238 }
 239
 240 int VM::get_tape_position(int drv)
 241 {
 242         return drec->get_tape_position();
 243 }
 244
 245 const _TCHAR* VM::get_tape_message(int drv)
 246 {
 247         return drec->get_message();
 248 }
 249
 250 void VM::push_play(int drv)
 251 {
 252         drec->set_ff_rew(0);
 253         drec->set_remote(true);
 254 }
 255
 256 void VM::push_stop(int drv)
 257 {
 258         drec->set_remote(false);
 259 }
 260
 261 void VM::push_fast_forward(int drv)
 262 {
 263         drec->set_ff_rew(1);
 264         drec->set_remote(true);
 265 }
 266
 267 void VM::push_fast_rewind(int drv)
 268 {
 269         drec->set_ff_rew(-1);
 270         drec->set_remote(true);
 271 }
 272
 273 bool VM::is_frame_skippable()
 274 {
 275         return event->is_frame_skippable();
 276 }
 277
 278 void VM::update_config()
 279 {
 280         for(DEVICE* device = first_device; device; device = device->next_device) {
 281                 device->update_config();
 282         }
 283 }
 284
 285 #define STATE_VERSION   3
 286
 287 #include "../../statesub.h"
 288
 289 void VM::decl_state(void)
 290 {
 291         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::BASIC_MASTER_HEAD")));
 292         for(DEVICE* device = first_device; device; device = device->next_device) {
 293                 device->decl_state();
 294         }
 295 }
 296
 297 void VM::save_state(FILEIO* state_fio)
 298 {
 299         //state_fio->FputUint32(STATE_VERSION);
 300
 301         if(state_entry != NULL) {
 302                 state_entry->save_state(state_fio);
 303         }
 304         for(DEVICE* device = first_device; device; device = device->next_device) {
 305                 device->save_state(state_fio);
 306         }
 307 }
 308
 309 bool VM::load_state(FILEIO* state_fio)
 310 {
 311         //if(state_fio->FgetUint32() != STATE_VERSION) {
 312         //      return false;
 313         //}
 314         bool mb = false;
 315         if(state_entry != NULL) {
 316                 mb = state_entry->load_state(state_fio);
 317         }
 318         if(!mb) {
 319                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 320                 return false;
 321         }
 322         for(DEVICE* device = first_device; device; device = device->next_device) {
 323                 if(!device->load_state(state_fio)) {
 324                         return false;
 325                 }
 326         }
 327         return true;
 328 }
 329