source/src/vm/jr800/jr800.cpp

   1 /*
   2         National JR-800 Emulator 'eJR-800'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2017.03.13-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "jr800.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../hd44102.h"
  17 //#include "../mc6800.h"
  18 #include "../hd6301.h"
  19 #include "../memory.h"
  20 #include "../noise.h"
  21 #include "../pcm1bit.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "io.h"
  28
  29 // ----------------------------------------------------------------------------
  30 // initialize
  31 // ----------------------------------------------------------------------------
  32
  33 VM::VM(EMU* parent_emu) : emu(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
  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         for(int i = 0; i < 8; i++) {
  45                 lcd[i] = new HD44102(this, emu);
  46         }
  47 //      cpu = new MC6800(this, emu);
  48         cpu = new HD6301(this, emu);
  49         memory = new MEMORY(this, emu);
  50         pcm = new PCM1BIT(this, emu);
  51
  52         io = new IO(this, emu);
  53
  54         // set contexts
  55         event->set_context_cpu(cpu);
  56         event->set_context_sound(drec);
  57         event->set_context_sound(pcm);
  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 //      cpu->set_context_port1(drec, SIG_DATAREC_MIC, 0x01, 0);
  63         cpu->set_context_port1(pcm, SIG_PCM1BIT_ON, 0x08, 0);
  64         cpu->set_context_port1(pcm, SIG_PCM1BIT_SIGNAL, 0x10, 0);
  65
  66         for(int i = 0; i < 8; i++) {
  67                 io->set_context_lcd(i, lcd[i]);
  68         }
  69
  70         // cpu bus
  71         cpu->set_context_mem(memory);
  72 #ifdef USE_DEBUGGER
  73         cpu->set_context_debugger(new DEBUGGER(this, emu));
  74 #endif
  75
  76         // memory bus
  77         memset(ram, 0x00, sizeof(ram));
  78         memset(rom, 0xff, sizeof(rom));
  79
  80         memory->read_bios(_T("BASIC.ROM"), rom, sizeof(rom));
  81
  82         memory->set_memory_rw(0x2000, 0x7fff, ram);
  83         memory->set_memory_r(0x8000, 0xffff, rom);
  84         memory->set_memory_mapped_io_rw(0x0a00, 0x0bff, io);
  85         memory->set_memory_mapped_io_rw(0x0d00, 0x0fff, io);
  86
  87         // initialize all devices
  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         cpu->write_signal(SIG_MC6801_PORT_1, 0x00, 0xff);
 126         cpu->write_signal(SIG_MC6801_PORT_2, 0x00, 0xff);
 127         cpu->write_signal(SIG_MC6801_PORT_3, 0x00, 0xff);
 128         cpu->write_signal(SIG_MC6801_PORT_4, 0x00, 0xff);
 129 }
 130
 131 void VM::run()
 132 {
 133         event->drive();
 134 }
 135
 136 // ----------------------------------------------------------------------------
 137 // debugger
 138 // ----------------------------------------------------------------------------
 139
 140 #ifdef USE_DEBUGGER
 141 DEVICE *VM::get_cpu(int index)
 142 {
 143         if(index == 0) {
 144                 return cpu;
 145         }
 146         return NULL;
 147 }
 148 #endif
 149
 150 // ----------------------------------------------------------------------------
 151 // draw screen
 152 // ----------------------------------------------------------------------------
 153
 154 void VM::draw_screen()
 155 {
 156         for(int y = 0; y < 2; y++) {
 157                 for(int x = 0; x < 4; x++) {
 158                         lcd[x + 4 * y]->screen_update(50 * x - 4, 32 * y, y == 0);
 159                 }
 160         }
 161 }
 162
 163 // ----------------------------------------------------------------------------
 164 // soud manager
 165 // ----------------------------------------------------------------------------
 166
 167 void VM::initialize_sound(int rate, int samples)
 168 {
 169         // init sound manager
 170         event->initialize_sound(rate, samples);
 171
 172         // init sound gen
 173         pcm->initialize_sound(rate, 8000);
 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                 pcm->set_volume(0, decibel_l, decibel_r);
 191         } if(ch == 1) {
 192                 drec->set_volume(0, decibel_l, decibel_r);
 193         } else if(ch == 2) {
 194                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 195                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 196                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 197         }
 198 }
 199 #endif
 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::JR_800_HEAD")));
 292         DECL_STATE_ENTRY_MULTI(void, ram, sizeof(ram));
 293         for(DEVICE* device = first_device; device; device = device->next_device) {
 294                 device->decl_state();
 295         }
 296 }
 297
 298 void VM::save_state(FILEIO* state_fio)
 299 {
 300         //state_fio->FputUint32(STATE_VERSION);
 301         if(state_entry != NULL) {
 302                 state_entry->save_state(state_fio);
 303         }
 304
 305         for(DEVICE* device = first_device; device; device = device->next_device) {
 306                 device->save_state(state_fio);
 307         }
 308         //state_fio->Fwrite(ram, sizeof(ram), 1);
 309 }
 310
 311 bool VM::load_state(FILEIO* state_fio)
 312 {
 313         //if(state_fio->FgetUint32() != STATE_VERSION) {
 314         //      return false;
 315         //}
 316         bool mb = false;
 317         if(state_entry != NULL) {
 318                 mb = state_entry->load_state(state_fio);
 319         }
 320         if(!mb) {
 321                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 322                 return false;
 323         }
 324         for(DEVICE* device = first_device; device; device = device->next_device) {
 325                 if(!device->load_state(state_fio)) {
 326                         return false;
 327                 }
 328         }
 329         //state_fio->Fread(ram, sizeof(ram), 1);
 330         return true;
 331 }
 332