source/src/vm/yalky/yalky.cpp

   1 /*
   2         Yuasa Kyouiku System YALKY Emulator 'eYALKY'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2016.03.28-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "yalky.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../i8080.h"
  17 #include "../i8155.h"
  18 #include "../memory.h"
  19 #include "../noise.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "io.h"
  26
  27 // ----------------------------------------------------------------------------
  28 // initialize
  29 // ----------------------------------------------------------------------------
  30
  31 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  32 {
  33         config.sound_play_tape = false;
  34         config.wave_shaper[0] = false;
  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 I8080(this, emu);     // 8085
  47         pio = new I8155(this, emu);     // 8156
  48         memory = new MEMORY(this, emu);
  49
  50         io = new IO(this, emu);
  51
  52         // set contexts
  53         event->set_context_cpu(cpu);
  54         event->set_context_sound(drec);
  55         event->set_context_sound(drec->get_context_noise_play());
  56         event->set_context_sound(drec->get_context_noise_stop());
  57         event->set_context_sound(drec->get_context_noise_fast());
  58
  59         drec->set_context_ear(io, SIG_IO_DREC_EAR, 1);
  60         cpu->set_context_sod(drec, SIG_DATAREC_MIC, 1);
  61         pio->set_context_port_b(io, SIG_IO_PORT_B, 0xff, 0);
  62         pio->set_context_port_c(io, SIG_IO_PORT_C, 0xff, 0);
  63         pio->set_context_timer(cpu, SIG_I8085_RST7, 1);
  64         pio->set_constant_clock(CPU_CLOCKS);    // from 8085 CLOCK OUT
  65
  66         io->set_context_drec(drec);
  67         io->set_context_cpu(cpu);
  68         io->set_context_pio(pio);
  69         io->set_vram_ptr(vram);
  70
  71         // cpu bus
  72         cpu->set_context_mem(memory);
  73         cpu->set_context_io(io);
  74         cpu->set_context_intr(io);
  75 #ifdef USE_DEBUGGER
  76         cpu->set_context_debugger(new DEBUGGER(this, emu));
  77 #endif
  78
  79         // memory bus
  80         memset(rom, 0xff, sizeof(rom));
  81
  82         memory->read_bios(_T("BIOS.ROM"), rom, sizeof(rom));
  83
  84         memory->set_memory_r(0x0000, 0x1fff, rom);
  85         memory->set_memory_rw(0x4000, 0x43ff, vram);
  86         memory->set_memory_rw(0x6000, 0x60ff, ram);     // 8156
  87
  88         // initialize all devices
  89 #if defined(__GIT_REPO_VERSION)
  90         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  91 #endif
  92         for(DEVICE* device = first_device; device; device = device->next_device) {
  93                 device->initialize();
  94         }
  95         decl_state();
  96 }
  97
  98 VM::~VM()
  99 {
 100         // delete all devices
 101         for(DEVICE* device = first_device; device;) {
 102                 DEVICE *next_device = device->next_device;
 103                 device->release();
 104                 delete device;
 105                 device = next_device;
 106         }
 107 }
 108
 109 DEVICE* VM::get_device(int id)
 110 {
 111         for(DEVICE* device = first_device; device; device = device->next_device) {
 112                 if(device->this_device_id == id) {
 113                         return device;
 114                 }
 115         }
 116         return NULL;
 117 }
 118
 119 // ----------------------------------------------------------------------------
 120 // drive virtual machine
 121 // ----------------------------------------------------------------------------
 122
 123 void VM::reset()
 124 {
 125         // reset all devices
 126         for(DEVICE* device = first_device; device; device = device->next_device) {
 127                 device->reset();
 128         }
 129         pio->write_signal(SIG_I8155_PORT_A, 0xff, 0x80); // PA7=1
 130         memset(ram, 0, sizeof(ram));
 131         memset(vram, 0, sizeof(vram));
 132 }
 133
 134 void VM::special_reset()
 135 {
 136         cpu->reset();
 137 }
 138
 139 void VM::run()
 140 {
 141         event->drive();
 142 }
 143
 144 // ----------------------------------------------------------------------------
 145 // debugger
 146 // ----------------------------------------------------------------------------
 147
 148 #ifdef USE_DEBUGGER
 149 DEVICE *VM::get_cpu(int index)
 150 {
 151         if(index == 0) {
 152                 return cpu;
 153         }
 154         return NULL;
 155 }
 156 #endif
 157
 158 // ----------------------------------------------------------------------------
 159 // draw screen
 160 // ----------------------------------------------------------------------------
 161
 162 void VM::draw_screen()
 163 {
 164         io->draw_screen();
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // soud manager
 169 // ----------------------------------------------------------------------------
 170
 171 void VM::initialize_sound(int rate, int samples)
 172 {
 173         // init sound manager
 174         event->initialize_sound(rate, samples);
 175 }
 176
 177 uint16_t* VM::create_sound(int* extra_frames)
 178 {
 179         return event->create_sound(extra_frames);
 180 }
 181
 182 int VM::get_sound_buffer_ptr()
 183 {
 184         return event->get_sound_buffer_ptr();
 185 }
 186
 187 #ifdef USE_SOUND_VOLUME
 188 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 189 {
 190         if(ch == 0) {
 191                 drec->set_volume(0, decibel_l, decibel_r);
 192         } else if(ch == 1) {
 193                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 194                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 195                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 196         }
 197 }
 198 #endif
 199
 200 // ----------------------------------------------------------------------------
 201 // user interface
 202 // ----------------------------------------------------------------------------
 203
 204 void VM::play_tape(int drv, const _TCHAR* file_path)
 205 {
 206         if(drec->play_tape(file_path)) {
 207                 drec->set_remote(true);
 208                 io->open_tape();
 209         }
 210 }
 211
 212 void VM::rec_tape(int drv, const _TCHAR* file_path)
 213 {
 214         if(drec->rec_tape(file_path)) {
 215                 drec->set_remote(true);
 216                 io->open_tape();
 217         }
 218 }
 219
 220 void VM::close_tape(int drv)
 221 {
 222         emu->lock_vm();
 223         drec->close_tape();
 224         emu->unlock_vm();
 225         drec->set_remote(false);
 226 }
 227
 228 bool VM::is_tape_inserted(int drv)
 229 {
 230         return drec->is_tape_inserted();
 231 }
 232
 233 bool VM::is_tape_playing(int drv)
 234 {
 235         return drec->is_tape_playing();
 236 }
 237
 238 bool VM::is_tape_recording(int drv)
 239 {
 240         return drec->is_tape_recording();
 241 }
 242
 243 int VM::get_tape_position(int drv)
 244 {
 245         return drec->get_tape_position();
 246 }
 247
 248 const _TCHAR* VM::get_tape_message(int drv)
 249 {
 250         return drec->get_message();
 251 }
 252
 253 void VM::push_play(int drv)
 254 {
 255         drec->set_ff_rew(0);
 256         drec->set_remote(true);
 257 }
 258
 259 void VM::push_stop(int drv)
 260 {
 261         drec->set_remote(false);
 262 }
 263
 264 void VM::push_fast_forward(int drv)
 265 {
 266         drec->set_ff_rew(1);
 267         drec->set_remote(true);
 268 }
 269
 270 void VM::push_fast_rewind(int drv)
 271 {
 272         drec->set_ff_rew(-1);
 273         drec->set_remote(true);
 274 }
 275
 276 bool VM::is_frame_skippable()
 277 {
 278         return event->is_frame_skippable();
 279 }
 280
 281 void VM::update_config()
 282 {
 283         for(DEVICE* device = first_device; device; device = device->next_device) {
 284                 device->update_config();
 285         }
 286 }
 287
 288 #define STATE_VERSION   4
 289
 290 #include "../../statesub.h"
 291 #include "../../qt/gui/csp_logger.h"
 292 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 293
 294 void VM::decl_state(void)
 295 {
 296
 297         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::YALKY_HEAD")), csp_logger);
 298         DECL_STATE_ENTRY_1D_ARRAY(ram, sizeof(ram));
 299         DECL_STATE_ENTRY_1D_ARRAY(vram, sizeof(vram));
 300         for(DEVICE* device = first_device; device; device = device->next_device) {
 301                 device->decl_state();
 302         }
 303 }
 304
 305 void VM::save_state(FILEIO* state_fio)
 306 {
 307         //state_fio->FputUint32(STATE_VERSION);
 308
 309         if(state_entry != NULL) {
 310                 state_entry->save_state(state_fio);
 311         }
 312         for(DEVICE* device = first_device; device; device = device->next_device) {
 313                 device->save_state(state_fio);
 314         }
 315         //state_fio->Fwrite(ram, sizeof(ram), 1);
 316         //state_fio->Fwrite(vram, sizeof(vram), 1);
 317 }
 318
 319 bool VM::load_state(FILEIO* state_fio)
 320 {
 321         //if(state_fio->FgetUint32() != STATE_VERSION) {
 322         //      return false;
 323         //}
 324         bool mb = false;
 325         if(state_entry != NULL) {
 326                 mb = state_entry->load_state(state_fio);
 327         }
 328         if(!mb) {
 329                 emu->out_debug_log("INFO: HEADER DATA ERROR");
 330                 return false;
 331         }
 332         for(DEVICE* device = first_device; device; device = device->next_device) {
 333                 if(!device->load_state(state_fio)) {
 334                         return false;
 335                 }
 336         }
 337         //state_fio->Fread(ram, sizeof(ram), 1);
 338         //state_fio->Fread(vram, sizeof(vram), 1);
 339         return true;
 340 }
 341