source/src/vm/pyuta/pyuta.cpp

   1 /*
   2         TOMY PyuTa Emulator 'ePyuTa'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2007.07.15 -
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "pyuta.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../noise.h"
  17 #include "../sn76489an.h"
  18 #include "../tms9918a.h"
  19 #include "../tms9995.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "./memory.h"
  26
  27 using PYUTA::MEMORY;
  28 // ----------------------------------------------------------------------------
  29 // initialize
  30 // ----------------------------------------------------------------------------
  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         psg = new SN76489AN(this, emu);
  45         vdp = new TMS9918A(this, emu);
  46 #ifdef USE_DEBUGGER
  47 //      psg->set_context_debugger(new DEBUGGER(this, emu));
  48         vdp->set_context_debugger(new DEBUGGER(this, emu));
  49 #endif
  50         cpu = new TMS9995(this, emu);
  51
  52         memory = new MEMORY(this, emu);
  53
  54         // set contexts
  55         event->set_context_cpu(cpu);
  56         event->set_context_sound(psg);
  57         event->set_context_sound(drec);
  58         event->set_context_sound(drec->get_context_noise_play());
  59         event->set_context_sound(drec->get_context_noise_stop());
  60         event->set_context_sound(drec->get_context_noise_fast());
  61
  62         drec->set_context_ear(memory, 0, 1);
  63         memory->set_context_cmt(drec);
  64         memory->set_context_cpu(cpu);
  65         memory->set_context_psg(psg);
  66         memory->set_context_vdp(vdp);
  67
  68         // cpu bus
  69         cpu->set_context_mem(memory);
  70         cpu->set_context_io(memory);
  71 #ifdef USE_DEBUGGER
  72         cpu->set_context_debugger(new DEBUGGER(this, emu));
  73 #endif
  74
  75         // initialize all devices
  76 #if defined(__GIT_REPO_VERSION)
  77         set_git_repo_version(__GIT_REPO_VERSION);
  78 #endif
  79         initialize_devices();
  80 }
  81
  82 VM::~VM()
  83 {
  84         // delete all devices
  85         for(DEVICE* device = first_device; device;) {
  86                 DEVICE *next_device = device->next_device;
  87                 device->release();
  88                 delete device;
  89                 device = next_device;
  90         }
  91 }
  92
  93 DEVICE* VM::get_device(int id)
  94 {
  95         for(DEVICE* device = first_device; device; device = device->next_device) {
  96                 if(device->this_device_id == id) {
  97                         return device;
  98                 }
  99         }
 100         return NULL;
 101 }
 102
 103 // ----------------------------------------------------------------------------
 104 // drive virtual machine
 105 // ----------------------------------------------------------------------------
 106
 107 void VM::reset()
 108 {
 109         // reset all devices
 110         for(DEVICE* device = first_device; device; device = device->next_device) {
 111                 device->reset();
 112         }
 113 }
 114
 115 void VM::run()
 116 {
 117         event->drive();
 118 }
 119
 120 // ----------------------------------------------------------------------------
 121 // debugger
 122 // ----------------------------------------------------------------------------
 123
 124 #ifdef USE_DEBUGGER
 125 DEVICE *VM::get_cpu(int index)
 126 {
 127         if(index == 0) {
 128                 return cpu;
 129         }
 130         return NULL;
 131 }
 132 #endif
 133
 134 // ----------------------------------------------------------------------------
 135 // draw screen
 136 // ----------------------------------------------------------------------------
 137
 138 void VM::draw_screen()
 139 {
 140         vdp->draw_screen();
 141 }
 142
 143 // ----------------------------------------------------------------------------
 144 // soud manager
 145 // ----------------------------------------------------------------------------
 146
 147 void VM::initialize_sound(int rate, int samples)
 148 {
 149         // init sound manager
 150         event->initialize_sound(rate, samples);
 151
 152         // init sound gen
 153         psg->initialize_sound(rate, 3579545, 8000);
 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                 psg->set_volume(0, decibel_l, decibel_r);
 171         } else if(ch == 1) {
 172                 drec->set_volume(0, decibel_l, decibel_r);
 173         } else if(ch == 2) {
 174                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 175                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 176                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 177         }
 178 }
 179 #endif
 180
 181 // ----------------------------------------------------------------------------
 182 // user interface
 183 // ----------------------------------------------------------------------------
 184
 185 void VM::open_cart(int drv, const _TCHAR* file_path)
 186 {
 187         if(drv == 0) {
 188                 memory->open_cart(file_path);
 189                 reset();
 190         }
 191 }
 192
 193 void VM::close_cart(int drv)
 194 {
 195         if(drv == 0) {
 196                 memory->close_cart();
 197                 reset();
 198         }
 199 }
 200
 201 bool VM::is_cart_inserted(int drv)
 202 {
 203         if(drv == 0) {
 204                 return memory->is_cart_inserted();
 205         } else {
 206                 return false;
 207         }
 208 }
 209
 210 void VM::play_tape(int drv, const _TCHAR* file_path)
 211 {
 212         bool remote = drec->get_remote();
 213
 214         if(drec->play_tape(file_path) && remote) {
 215                 // if machine already sets remote on, start playing now
 216                 push_play(drv);
 217         }
 218 }
 219
 220 void VM::rec_tape(int drv, const _TCHAR* file_path)
 221 {
 222         bool remote = drec->get_remote();
 223
 224         if(drec->rec_tape(file_path) && remote) {
 225                 // if machine already sets remote on, start recording now
 226                 push_play(drv);
 227         }
 228 }
 229
 230 void VM::close_tape(int drv)
 231 {
 232         emu->lock_vm();
 233         drec->close_tape();
 234         emu->unlock_vm();
 235         drec->set_remote(false);
 236 }
 237
 238 bool VM::is_tape_inserted(int drv)
 239 {
 240         return drec->is_tape_inserted();
 241 }
 242
 243 bool VM::is_tape_playing(int drv)
 244 {
 245         return drec->is_tape_playing();
 246 }
 247
 248 bool VM::is_tape_recording(int drv)
 249 {
 250         return drec->is_tape_recording();
 251 }
 252
 253 int VM::get_tape_position(int drv)
 254 {
 255         return drec->get_tape_position();
 256 }
 257
 258 const _TCHAR* VM::get_tape_message(int drv)
 259 {
 260         return drec->get_message();
 261 }
 262
 263 void VM::push_play(int drv)
 264 {
 265         drec->set_remote(false);
 266         drec->set_ff_rew(0);
 267         drec->set_remote(true);
 268 }
 269
 270 void VM::push_stop(int drv)
 271 {
 272         drec->set_remote(false);
 273 }
 274
 275 void VM::push_fast_forward(int drv)
 276 {
 277         drec->set_remote(false);
 278         drec->set_ff_rew(1);
 279         drec->set_remote(true);
 280 }
 281
 282 void VM::push_fast_rewind(int drv)
 283 {
 284         drec->set_remote(false);
 285         drec->set_ff_rew(-1);
 286         drec->set_remote(true);
 287 }
 288
 289 bool VM::is_frame_skippable()
 290 {
 291         return event->is_frame_skippable();
 292 }
 293
 294 void VM::update_config()
 295 {
 296         for(DEVICE* device = first_device; device; device = device->next_device) {
 297                 device->update_config();
 298         }
 299 }
 300
 301 double VM::get_current_usec()
 302 {
 303         if(event == NULL) return 0.0;
 304         return event->get_current_usec();
 305 }
 306
 307 uint64_t VM::get_current_clock_uint64()
 308 {
 309                 if(event == NULL) return (uint64_t)0;
 310                 return event->get_current_clock_uint64();
 311 }
 312
 313 #define STATE_VERSION   5
 314
 315 bool VM::process_state(FILEIO* state_fio, bool loading)
 316 {
 317         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
 318                 return false;
 319         }
 320         // Machine specified.
 321         return true;
 322 }