source/src/vm/jr100/jr100.cpp

   1 /*
   2         National JR-100 Emulator 'eJR-100'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.08.27-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "jr100.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 //#include "../mc6800.h"
  17 #include "../mb8861.h"
  18 #include "../noise.h"
  19 #include "../not.h"
  20 #include "../pcm1bit.h"
  21 #include "../sy6522.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "memory.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // initialize
  31 // ----------------------------------------------------------------------------
  32
  33 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  34 {
  35         // create devices
  36         first_device = last_device = NULL;
  37         dummy = new DEVICE(this, emu);  // must be 1st device
  38         event = new EVENT(this, emu);   // must be 2nd device
  39         dummy->set_device_name(_T("1st Dummy"));
  40
  41         drec = new DATAREC(this, emu);
  42         drec->set_context_noise_play(new NOISE(this, emu));
  43         drec->set_context_noise_stop(new NOISE(this, emu));
  44         drec->set_context_noise_fast(new NOISE(this, emu));
  45         //cpu = new MC6800(this, emu);  // MB8861N
  46         cpu = new MB8861(this, emu);    // MB8861N
  47         not_mic = new NOT(this, emu);
  48         not_mic->set_device_name(_T("NOT Gate (Mic)"));
  49         not_ear = new NOT(this, emu);
  50         not_ear->set_device_name(_T("NOT Gate (Ear)"));
  51         pcm = new PCM1BIT(this, emu);
  52         via = new SY6522(this, emu);
  53
  54         memory = new MEMORY(this, emu);
  55         // set contexts
  56         event->set_context_cpu(cpu);
  57         event->set_context_sound(pcm);
  58         event->set_context_sound(drec);
  59         event->set_context_sound(drec->get_context_noise_play());
  60         event->set_context_sound(drec->get_context_noise_stop());
  61         event->set_context_sound(drec->get_context_noise_fast());
  62
  63         via->set_context_port_a(memory, SIG_MEMORY_VIA_PORT_A, 0xff, 0);
  64         via->set_context_port_b(memory, SIG_MEMORY_VIA_PORT_B, 0xff, 0);
  65         via->set_context_port_b(pcm, SIG_PCM1BIT_SIGNAL, 0x80, 0);      // PB7 -> Speaker
  66         via->set_context_port_b(via, SIG_MEMORY_VIA_PORT_B, 0x80, -1);  // PB7 -> PB6
  67         via->set_context_cb2(not_mic, SIG_NOT_INPUT, 1);                // CB2 -> NOT -> MIC
  68         via->set_constant_clock(CPU_CLOCKS >> 2);
  69         not_mic->set_context_out(drec, SIG_DATAREC_MIC, 1);
  70         drec->set_context_ear(not_ear, SIG_NOT_INPUT, 1);               // EAR -> NOT -> CA1,CB1
  71         not_ear->set_context_out(via, SIG_SY6522_PORT_CA1, 1);
  72         not_ear->set_context_out(via, SIG_SY6522_PORT_CB1, 1);
  73         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  74         //pcm->set_realtime_render(true);
  75
  76         memory->set_context_via(via);
  77
  78         // cpu bus
  79         cpu->set_context_mem(memory);
  80 #ifdef USE_DEBUGGER
  81         cpu->set_context_debugger(new DEBUGGER(this, emu));
  82 #endif
  83
  84         // initialize all devices
  85 #if defined(__GIT_REPO_VERSION)
  86         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  87 #endif
  88         for(DEVICE* device = first_device; device; device = device->next_device) {
  89                 device->initialize();
  90         }
  91         decl_state();
  92 }
  93
  94 VM::~VM()
  95 {
  96         // delete all devices
  97         for(DEVICE* device = first_device; device;) {
  98                 DEVICE *next_device = device->next_device;
  99                 device->release();
 100                 delete device;
 101                 device = next_device;
 102         }
 103 }
 104
 105 DEVICE* VM::get_device(int id)
 106 {
 107         for(DEVICE* device = first_device; device; device = device->next_device) {
 108                 if(device->this_device_id == id) {
 109                         return device;
 110                 }
 111         }
 112         return NULL;
 113 }
 114
 115 // ----------------------------------------------------------------------------
 116 // drive virtual machine
 117 // ----------------------------------------------------------------------------
 118
 119 void VM::reset()
 120 {
 121         // reset all devices
 122         for(DEVICE* device = first_device; device; device = device->next_device) {
 123                 device->reset();
 124         }
 125 }
 126
 127 void VM::special_reset()
 128 {
 129         // reset all devices
 130         for(DEVICE* device = first_device; device; device = device->next_device) {
 131                 device->reset();
 132         }
 133 }
 134
 135 void VM::run()
 136 {
 137         event->drive();
 138 }
 139
 140 double VM::get_frame_rate()
 141 {
 142         return event->get_frame_rate();
 143 }
 144
 145 // ----------------------------------------------------------------------------
 146 // debugger
 147 // ----------------------------------------------------------------------------
 148
 149 #ifdef USE_DEBUGGER
 150 DEVICE *VM::get_cpu(int index)
 151 {
 152         if(index == 0) {
 153                 return cpu;
 154         }
 155         return NULL;
 156 }
 157 #endif
 158
 159 // ----------------------------------------------------------------------------
 160 // draw screen
 161 // ----------------------------------------------------------------------------
 162
 163 void VM::draw_screen()
 164 {
 165         memory->draw_screen();
 166 }
 167
 168 // ----------------------------------------------------------------------------
 169 // soud manager
 170 // ----------------------------------------------------------------------------
 171
 172 void VM::initialize_sound(int rate, int samples)
 173 {
 174         // init sound manager
 175         event->initialize_sound(rate, samples);
 176
 177         // init sound gen
 178         pcm->initialize_sound(rate, 5000);
 179 }
 180
 181 uint16_t* VM::create_sound(int* extra_frames)
 182 {
 183         return event->create_sound(extra_frames);
 184 }
 185
 186 int VM::get_sound_buffer_ptr()
 187 {
 188         return event->get_sound_buffer_ptr();
 189 }
 190
 191 #ifdef USE_SOUND_VOLUME
 192 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 193 {
 194         if(ch == 0) {
 195                 pcm->set_volume(0, decibel_l, decibel_r);
 196         } else if(ch == 1) {
 197                 drec->set_volume(0, decibel_l, decibel_r);
 198         } else if(ch == 2) {
 199                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 200                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 201                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 202         }
 203 }
 204 #endif
 205
 206 // ----------------------------------------------------------------------------
 207 // user interface
 208 // ----------------------------------------------------------------------------
 209
 210 void VM::play_tape(int drv, const _TCHAR* file_path)
 211 {
 212         drec->play_tape(file_path);
 213 //      drec->set_remote(true);
 214 }
 215
 216 void VM::rec_tape(int drv, const _TCHAR* file_path)
 217 {
 218         drec->rec_tape(file_path);
 219 //      drec->set_remote(true);
 220 }
 221
 222 void VM::close_tape(int drv)
 223 {
 224         emu->lock_vm();
 225         drec->close_tape();
 226         emu->unlock_vm();
 227 //      drec->set_remote(false);
 228 }
 229
 230 bool VM::is_tape_inserted(int drv)
 231 {
 232         return drec->is_tape_inserted();
 233 }
 234
 235 bool VM::is_tape_playing(int drv)
 236 {
 237         return drec->is_tape_playing();
 238 }
 239
 240 bool VM::is_tape_recording(int drv)
 241 {
 242         return drec->is_tape_recording();
 243 }
 244
 245 int VM::get_tape_position(int drv)
 246 {
 247         return drec->get_tape_position();
 248 }
 249
 250 const _TCHAR* VM::get_tape_message(int drv)
 251 {
 252         return drec->get_message();
 253 }
 254
 255 void VM::push_play(int drv)
 256 {
 257         drec->set_ff_rew(0);
 258         drec->set_remote(true);
 259 }
 260
 261 void VM::push_stop(int drv)
 262 {
 263         drec->set_remote(false);
 264 }
 265
 266 void VM::push_fast_forward(int drv)
 267 {
 268         drec->set_ff_rew(1);
 269         drec->set_remote(true);
 270 }
 271
 272 void VM::push_fast_rewind(int drv)
 273 {
 274         drec->set_ff_rew(-1);
 275         drec->set_remote(true);
 276 }
 277
 278 bool VM::is_frame_skippable()
 279 {
 280         return event->is_frame_skippable();
 281 }
 282
 283 void VM::update_config()
 284 {
 285         for(DEVICE* device = first_device; device; device = device->next_device) {
 286                 device->update_config();
 287         }
 288 }
 289
 290 #define STATE_VERSION   3
 291
 292 #include "../../statesub.h"
 293 #include "../../qt/gui/csp_logger.h"
 294 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 295
 296 void VM::decl_state(void)
 297 {
 298         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::JR_100_HEAD")), csp_logger);
 299         for(DEVICE* device = first_device; device; device = device->next_device) {
 300                 device->decl_state();
 301         }
 302 }
 303
 304 void VM::save_state(FILEIO* state_fio)
 305 {
 306         //state_fio->FputUint32(STATE_VERSION);
 307
 308         if(state_entry != NULL) {
 309                 state_entry->save_state(state_fio);
 310         }
 311         for(DEVICE* device = first_device; device; device = device->next_device) {
 312                 device->save_state(state_fio);
 313         }
 314 }
 315
 316 bool VM::load_state(FILEIO* state_fio)
 317 {
 318         //if(state_fio->FgetUint32() != STATE_VERSION) {
 319         //      return false;
 320         //}
 321         bool mb = false;
 322         if(state_entry != NULL) {
 323                 mb = state_entry->load_state(state_fio);
 324         }
 325         if(!mb) {
 326                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 327                 return false;
 328         }
 329         for(DEVICE* device = first_device; device; device = device->next_device) {
 330                 if(!device->load_state(state_fio)) {
 331                         return false;
 332                 }
 333         }
 334         return true;
 335 }
 336