source/src/vm/pc8801/pc8801.cpp

   1 /*\r
   2         NEC PC-8801MA Emulator 'ePC-8801MA'\r
   3         NEC PC-8001mkIISR Emulator 'ePC-8001mkIISR'\r
   4 \r
   5         Author : Takeda.Toshiya\r
   6         Date   : 2012.02.16-\r
   7 \r
   8         [ virtual machine ]\r
   9 */\r
  10 \r
  11 #include "pc8801.h"\r
  12 #include "../../emu.h"\r
  13 #include "../device.h"\r
  14 #include "../event.h"\r
  15 \r
  16 #include "../beep.h"\r
  17 #include "../i8251.h"\r
  18 #include "../i8255.h"\r
  19 #include "../pcm1bit.h"\r
  20 #include "../upd1990a.h"\r
  21 #include "../ym2203.h"\r
  22 #include "../z80.h"\r
  23 \r
  24 #include "../disk.h"\r
  25 #include "../pc80s31k.h"\r
  26 #include "../upd765a.h"\r
  27 \r
  28 #ifdef USE_DEBUGGER\r
  29 #include "../debugger.h"\r
  30 #endif\r
  31 \r
  32 #ifdef SUPPORT_PC88_PCG8100\r
  33 #include "../i8253.h"\r
  34 #endif\r
  35 \r
  36 #include "pc88.h"\r
  37 \r
  38 #include "../../fileio.h"\r
  39 \r
  40 // ----------------------------------------------------------------------------\r
  41 // initialize\r
  42 // ----------------------------------------------------------------------------\r
  43 \r
  44 VM::VM(EMU* parent_emu) : emu(parent_emu)\r
  45 {\r
  46         // check configs\r
  47         boot_mode = config.boot_mode;\r
  48         \r
  49         // create devices\r
  50         first_device = last_device = NULL;\r
  51         dummy = new DEVICE(this, emu);  // must be 1st device\r
  52         \r
  53         pc88event = new EVENT(this, emu);\r
  54 //      pc88event->set_frames_per_sec(60);\r
  55 //      pc88event->set_lines_per_frame(260);\r
  56         \r
  57         pc88 = new PC88(this, emu);\r
  58 //      pc88->set_context_event_manager(pc88event);\r
  59         pc88beep = new BEEP(this, emu);\r
  60 //      pc88beep->set_context_event_manager(pc88event);\r
  61         pc88sio = new I8251(this, emu);\r
  62 //      pc88sio->set_context_event_manager(pc88event);\r
  63         pc88pio = new I8255(this, emu);\r
  64 //      pc88pio->set_context_event_manager(pc88event);\r
  65         pc88pcm = new PCM1BIT(this, emu);\r
  66 //      pc88pcm->set_context_event_manager(pc88event);\r
  67         pc88rtc = new UPD1990A(this, emu);\r
  68 //      pc88rtc->set_context_event_manager(pc88event);\r
  69         pc88opn = new YM2203(this, emu);\r
  70 //      pc88opn->set_context_event_manager(pc88event);\r
  71         pc88cpu = new Z80(this, emu);\r
  72 //      pc88cpu->set_context_event_manager(pc88event);\r
  73         \r
  74         pc88sub = new PC80S31K(this, emu);\r
  75 //      pc88sub->set_context_event_manager(pc88event);\r
  76         pc88pio_sub = new I8255(this, emu);\r
  77 //      pc88pio_sub->set_context_event_manager(pc88event);\r
  78         pc88fdc_sub = new UPD765A(this, emu);\r
  79 //      pc88fdc_sub->set_context_event_manager(pc88event);\r
  80         pc88cpu_sub = new Z80(this, emu);\r
  81 //      pc88cpu_sub->set_context_event_manager(pc88event);\r
  82         \r
  83 #ifdef SUPPORT_PC88_PCG8100\r
  84         pc88pit = new I8253(this, emu);\r
  85 //      pc88pit->set_context_event_manager(pc88event);\r
  86         pc88pcm0 = new PCM1BIT(this, emu);\r
  87 //      pc88pcm->set_context_event_manager(pc88event);\r
  88         pc88pcm1 = new PCM1BIT(this, emu);\r
  89 //      pc88pcm->set_context_event_manager(pc88event);\r
  90         pc88pcm2 = new PCM1BIT(this, emu);\r
  91 //      pc88pcm->set_context_event_manager(pc88event);\r
  92 #endif\r
  93         \r
  94 #ifdef SUPPORT_PC88_HIGH_CLOCK\r
  95         pc88event->set_context_cpu(pc88cpu, (config.cpu_type != 0) ? 3993624 : 7987248);\r
  96 #else\r
  97         pc88event->set_context_cpu(pc88cpu, 3993624);\r
  98 #endif\r
  99         pc88event->set_context_cpu(pc88cpu_sub, 3993624);\r
 100         pc88event->set_context_sound(pc88beep);\r
 101         pc88event->set_context_sound(pc88opn);\r
 102         pc88event->set_context_sound(pc88pcm);\r
 103 #ifdef SUPPORT_PC88_PCG8100\r
 104         pc88event->set_context_sound(pc88pcm0);\r
 105         pc88event->set_context_sound(pc88pcm1);\r
 106         pc88event->set_context_sound(pc88pcm2);\r
 107 #endif\r
 108         \r
 109         pc88->set_context_beep(pc88beep);\r
 110         pc88->set_context_cpu(pc88cpu);\r
 111         pc88->set_context_opn(pc88opn);\r
 112         pc88->set_context_pcm(pc88pcm);\r
 113         pc88->set_context_pio(pc88pio);\r
 114         pc88->set_context_rtc(pc88rtc);\r
 115         pc88->set_context_sio(pc88sio);\r
 116 #ifdef SUPPORT_PC88_PCG8100\r
 117         pc88->set_context_pcg_pit(pc88pit);\r
 118         pc88->set_context_pcg_pcm0(pc88pcm0);\r
 119         pc88->set_context_pcg_pcm1(pc88pcm1);\r
 120         pc88->set_context_pcg_pcm2(pc88pcm2);\r
 121 #endif\r
 122         pc88cpu->set_context_mem(pc88);\r
 123         pc88cpu->set_context_io(pc88);\r
 124         pc88cpu->set_context_intr(pc88);\r
 125 #ifdef USE_DEBUGGER\r
 126         pc88cpu->set_context_debugger(new DEBUGGER(this, emu));\r
 127 #endif\r
 128         pc88opn->set_context_irq(pc88, SIG_PC88_SOUND_IRQ, 1);\r
 129         pc88sio->set_context_rxrdy(pc88, SIG_PC88_USART_IRQ, 1);\r
 130         pc88sio->set_context_out(pc88, SIG_PC88_USART_OUT);\r
 131         \r
 132         pc88sub->set_context_cpu(pc88cpu_sub);\r
 133         pc88sub->set_context_fdc(pc88fdc_sub);\r
 134         pc88sub->set_context_pio(pc88pio_sub);\r
 135         pc88pio->set_context_port_a(pc88pio_sub, SIG_I8255_PORT_B, 0xff, 0);\r
 136         pc88pio->set_context_port_b(pc88pio_sub, SIG_I8255_PORT_A, 0xff, 0);\r
 137         pc88pio->set_context_port_c(pc88pio_sub, SIG_I8255_PORT_C, 0x0f, 4);\r
 138         pc88pio->set_context_port_c(pc88pio_sub, SIG_I8255_PORT_C, 0xf0, -4);\r
 139         pc88pio->clear_ports_by_cmdreg = true;\r
 140         pc88pio_sub->set_context_port_a(pc88pio, SIG_I8255_PORT_B, 0xff, 0);\r
 141         pc88pio_sub->set_context_port_b(pc88pio, SIG_I8255_PORT_A, 0xff, 0);\r
 142         pc88pio_sub->set_context_port_c(pc88pio, SIG_I8255_PORT_C, 0x0f, 4);\r
 143         pc88pio_sub->set_context_port_c(pc88pio, SIG_I8255_PORT_C, 0xf0, -4);\r
 144         pc88pio_sub->clear_ports_by_cmdreg = true;\r
 145         pc88fdc_sub->set_context_irq(pc88cpu_sub, SIG_CPU_IRQ, 1);\r
 146         pc88cpu_sub->set_context_mem(pc88sub);\r
 147         pc88cpu_sub->set_context_io(pc88sub);\r
 148         pc88cpu_sub->set_context_intr(pc88sub);\r
 149 #ifdef USE_DEBUGGER\r
 150         pc88cpu_sub->set_context_debugger(new DEBUGGER(this, emu));\r
 151 #endif\r
 152         \r
 153 #ifdef SUPPORT_PC88_PCG8100\r
 154         pc88pit->set_context_ch0(pc88pcm0, SIG_PCM1BIT_SIGNAL, 1);\r
 155         pc88pit->set_context_ch1(pc88pcm1, SIG_PCM1BIT_SIGNAL, 1);\r
 156         pc88pit->set_context_ch2(pc88pcm2, SIG_PCM1BIT_SIGNAL, 1);\r
 157         pc88pit->set_constant_clock(0, 3993624);\r
 158         pc88pit->set_constant_clock(1, 3993624);\r
 159         pc88pit->set_constant_clock(2, 3993624);\r
 160 #endif\r
 161         \r
 162         // initialize all devices\r
 163         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 164                 device->initialize();\r
 165         }\r
 166 }\r
 167 \r
 168 VM::~VM()\r
 169 {\r
 170         // delete all devices\r
 171         for(DEVICE* device = first_device; device;) {\r
 172                 DEVICE *next_device = device->next_device;\r
 173                 device->release();\r
 174                 delete device;\r
 175                 device = next_device;\r
 176         }\r
 177 }\r
 178 \r
 179 DEVICE* VM::get_device(int id)\r
 180 {\r
 181         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 182                 if(device->this_device_id == id) {\r
 183                         return device;\r
 184                 }\r
 185         }\r
 186         return NULL;\r
 187 }\r
 188 \r
 189 // ----------------------------------------------------------------------------\r
 190 // drive virtual machine\r
 191 // ----------------------------------------------------------------------------\r
 192 \r
 193 void VM::reset()\r
 194 {\r
 195         // reset all devices\r
 196         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 197                 device->reset();\r
 198         }\r
 199         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 200                 device->reset();\r
 201         }\r
 202         \r
 203         // initial device settings\r
 204         pc88opn->SetReg(0x29, 3); // for Misty Blue\r
 205         pc88pio->write_signal(SIG_I8255_PORT_C, 0, 0xff);\r
 206         pc88pio_sub->write_signal(SIG_I8255_PORT_C, 0, 0xff);\r
 207 }\r
 208 \r
 209 void VM::run()\r
 210 {\r
 211         pc88event->drive();\r
 212 }\r
 213 \r
 214 double VM::frame_rate()\r
 215 {\r
 216         return pc88event->frame_rate();\r
 217 }\r
 218 \r
 219 // ----------------------------------------------------------------------------\r
 220 // debugger\r
 221 // ----------------------------------------------------------------------------\r
 222 \r
 223 #ifdef USE_DEBUGGER\r
 224 DEVICE *VM::get_cpu(int index)\r
 225 {\r
 226         if(index == 0) {\r
 227                 return pc88cpu;\r
 228         } else if(index == 1) {\r
 229                 return pc88cpu_sub;\r
 230         }\r
 231         return NULL;\r
 232 }\r
 233 #endif\r
 234 \r
 235 // ----------------------------------------------------------------------------\r
 236 // draw screen\r
 237 // ----------------------------------------------------------------------------\r
 238 \r
 239 void VM::draw_screen()\r
 240 {\r
 241         pc88->draw_screen();\r
 242 }\r
 243 \r
 244 int VM::access_lamp()\r
 245 {\r
 246         return pc88fdc_sub->read_signal(0);\r
 247 }\r
 248 \r
 249 // ----------------------------------------------------------------------------\r
 250 // soud manager\r
 251 // ----------------------------------------------------------------------------\r
 252 \r
 253 void VM::initialize_sound(int rate, int samples)\r
 254 {\r
 255         // init sound manager\r
 256         pc88event->initialize_sound(rate, samples);\r
 257         \r
 258         // init sound gen\r
 259         pc88beep->init(rate, 2400, 8000);\r
 260 #ifdef HAS_YM2608\r
 261         pc88opn->init(rate, 7987248, samples, 0, 0);\r
 262 #else\r
 263         pc88opn->init(rate, 3993624, samples, 0, 0);\r
 264 #endif\r
 265         pc88pcm->init(rate, 8000);\r
 266 #ifdef SUPPORT_PC88_PCG8100\r
 267         pc88pcm0->init(rate, 8000);\r
 268         pc88pcm1->init(rate, 8000);\r
 269         pc88pcm2->init(rate, 8000);\r
 270 #endif\r
 271 }\r
 272 \r
 273 uint16* VM::create_sound(int* extra_frames)\r
 274 {\r
 275         return pc88event->create_sound(extra_frames);\r
 276 }\r
 277 \r
 278 int VM::sound_buffer_ptr()\r
 279 {\r
 280         return pc88event->sound_buffer_ptr();\r
 281 }\r
 282 \r
 283 // ----------------------------------------------------------------------------\r
 284 // notify key\r
 285 // ----------------------------------------------------------------------------\r
 286 \r
 287 void VM::key_down(int code, bool repeat)\r
 288 {\r
 289         pc88->key_down(code, repeat);\r
 290 }\r
 291 \r
 292 void VM::key_up(int code)\r
 293 {\r
 294 }\r
 295 \r
 296 // ----------------------------------------------------------------------------\r
 297 // user interface\r
 298 // ----------------------------------------------------------------------------\r
 299 \r
 300 void VM::open_disk(int drv, _TCHAR* file_path, int offset)\r
 301 {\r
 302         pc88fdc_sub->open_disk(drv, file_path, offset);\r
 303 }\r
 304 \r
 305 void VM::close_disk(int drv)\r
 306 {\r
 307         pc88fdc_sub->close_disk(drv);\r
 308 }\r
 309 \r
 310 bool VM::disk_inserted(int drv)\r
 311 {\r
 312         return pc88fdc_sub->disk_inserted(drv);\r
 313 }\r
 314 void VM::write_protect_fd(int drv, bool flag)\r
 315 {\r
 316         pc88fdc_sub->write_protect_fd(drv, flag);\r
 317 }\r
 318 bool VM::is_write_protect_fd(int drv)\r
 319 {\r
 320         return pc88fdc_sub->is_write_protect_fd(drv);\r
 321 }\r
 322 \r
 323 void VM::play_tape(_TCHAR* file_path)\r
 324 {\r
 325         pc88->play_tape(file_path);\r
 326 }\r
 327 \r
 328 void VM::rec_tape(_TCHAR* file_path)\r
 329 {\r
 330         pc88->rec_tape(file_path);\r
 331 }\r
 332 \r
 333 void VM::close_tape()\r
 334 {\r
 335         pc88->close_tape();\r
 336 }\r
 337 \r
 338 bool VM::tape_inserted()\r
 339 {\r
 340         return pc88->tape_inserted();\r
 341 }\r
 342 \r
 343 bool VM::now_skip()\r
 344 {\r
 345 //      return event->now_skip();\r
 346         return pc88->now_skip();\r
 347 }\r
 348 \r
 349 void VM::update_config()\r
 350 {\r
 351         if(boot_mode != config.boot_mode) {\r
 352                 // boot mode is changed !!!\r
 353                 boot_mode = config.boot_mode;\r
 354                 reset();\r
 355         } else {\r
 356                 for(DEVICE* device = first_device; device; device = device->next_device) {\r
 357                         device->update_config();\r
 358                 }\r
 359         }\r
 360 }\r
 361 \r
 362 #define STATE_VERSION   1\r
 363 \r
 364 void VM::save_state(FILEIO* state_fio)\r
 365 {\r
 366         state_fio->FputUint32(STATE_VERSION);\r
 367         \r
 368         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 369                 device->save_state(state_fio);\r
 370         }\r
 371         state_fio->FputInt32(boot_mode);\r
 372 }\r
 373 \r
 374 bool VM::load_state(FILEIO* state_fio)\r
 375 {\r
 376         if(state_fio->FgetUint32() != STATE_VERSION) {\r
 377                 return false;\r
 378         }\r
 379         for(DEVICE* device = first_device; device; device = device->next_device) {\r
 380                 if(!device->load_state(state_fio)) {\r
 381                         return false;\r
 382                 }\r
 383         }\r
 384         boot_mode = state_fio->FgetInt32();\r
 385         return true;\r
 386 }\r
 387 \r