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 using JR100::MEMORY;
  30 // ----------------------------------------------------------------------------
  31 // initialize
  32 // ----------------------------------------------------------------------------
  33
  34 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  35 {
  36         // create devices
  37         first_device = last_device = NULL;
  38         dummy = new DEVICE(this, emu);  // must be 1st device
  39         event = new EVENT(this, emu);   // must be 2nd device
  40         dummy->set_device_name(_T("1st Dummy"));
  41
  42         drec = new DATAREC(this, emu);
  43         drec->set_context_noise_play(new NOISE(this, emu));
  44         drec->set_context_noise_stop(new NOISE(this, emu));
  45         drec->set_context_noise_fast(new NOISE(this, emu));
  46         //cpu = new MC6800(this, emu);  // MB8861N
  47         cpu = new MB8861(this, emu);    // MB8861N
  48         not_mic = new NOT(this, emu);
  49         not_mic->set_device_name(_T("NOT Gate (Mic)"));
  50         not_ear = new NOT(this, emu);
  51         not_ear->set_device_name(_T("NOT Gate (Ear)"));
  52         pcm = new PCM1BIT(this, emu);
  53         via = new SY6522(this, emu);
  54
  55         memory = new MEMORY(this, emu);
  56         // set contexts
  57         event->set_context_cpu(cpu);
  58         event->set_context_sound(pcm);
  59         event->set_context_sound(drec);
  60         event->set_context_sound(drec->get_context_noise_play());
  61         event->set_context_sound(drec->get_context_noise_stop());
  62         event->set_context_sound(drec->get_context_noise_fast());
  63
  64         via->set_context_port_a(memory, SIG_MEMORY_VIA_PORT_A, 0xff, 0);
  65         via->set_context_port_b(memory, SIG_MEMORY_VIA_PORT_B, 0xff, 0);
  66         via->set_context_port_b(pcm, SIG_PCM1BIT_SIGNAL, 0x80, 0);      // PB7 -> Speaker
  67         via->set_context_port_b(via, SIG_MEMORY_VIA_PORT_B, 0x80, -1);  // PB7 -> PB6
  68         via->set_context_cb2(not_mic, SIG_NOT_INPUT, 1);                // CB2 -> NOT -> MIC
  69         via->set_constant_clock(CPU_CLOCKS >> 2);
  70         not_mic->set_context_out(drec, SIG_DATAREC_MIC, 1);
  71         drec->set_context_ear(not_ear, SIG_NOT_INPUT, 1);               // EAR -> NOT -> CA1,CB1
  72         not_ear->set_context_out(via, SIG_SY6522_PORT_CA1, 1);
  73         not_ear->set_context_out(via, SIG_SY6522_PORT_CB1, 1);
  74         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  75         //pcm->set_realtime_render(true);
  76
  77         memory->set_context_via(via);
  78
  79         // cpu bus
  80         cpu->set_context_mem(memory);
  81 #ifdef USE_DEBUGGER
  82         cpu->set_context_debugger(new DEBUGGER(this, emu));
  83 #endif
  84
  85         // initialize all devices
  86 #if defined(__GIT_REPO_VERSION)
  87         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  88 #endif
  89         for(DEVICE* device = first_device; device; device = device->next_device) {
  90                 device->initialize();
  91         }
  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         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 #define STATE_VERSION   3
 302
 303 bool VM::process_state(FILEIO* state_fio, bool loading)
 304 {
 305         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 306                 return false;
 307         }
 308         for(DEVICE* device = first_device; device; device = device->next_device) {
 309                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 310                 // const char *name = typeid(*device).name();
 311                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 312                 const char *name = device->get_device_name();
 313                 int len = strlen(name);
 314
 315                 if(!state_fio->StateCheckInt32(len)) {
 316                         if(loading) {
 317                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 318                         }
 319                         return false;
 320                 }
 321                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 322                         if(loading) {
 323                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 324                         }
 325                         return false;
 326                 }
 327                 if(!device->process_state(state_fio, loading)) {
 328                         if(loading) {
 329                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 330                         }
 331                         return false;
 332                 }
 333         }
 334         return true;
 335 }