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         for(DEVICE* device = first_device; device; device = device->next_device) {
  90                 device->initialize();
  91         }
  92         decl_state();
  93 }
  94
  95 VM::~VM()
  96 {
  97         // delete all devices
  98         for(DEVICE* device = first_device; device;) {
  99                 DEVICE *next_device = device->next_device;
 100                 device->release();
 101                 delete device;
 102                 device = next_device;
 103         }
 104 }
 105
 106 DEVICE* VM::get_device(int id)
 107 {
 108         for(DEVICE* device = first_device; device; device = device->next_device) {
 109                 if(device->this_device_id == id) {
 110                         return device;
 111                 }
 112         }
 113         return NULL;
 114 }
 115
 116 // ----------------------------------------------------------------------------
 117 // drive virtual machine
 118 // ----------------------------------------------------------------------------
 119
 120 void VM::reset()
 121 {
 122         // reset all devices
 123         for(DEVICE* device = first_device; device; device = device->next_device) {
 124                 device->reset();
 125         }
 126         pio->write_signal(SIG_I8155_PORT_A, 0xff, 0x80); // PA7=1
 127         memset(ram, 0, sizeof(ram));
 128         memset(vram, 0, sizeof(vram));
 129 }
 130
 131 void VM::special_reset()
 132 {
 133         cpu->reset();
 134 }
 135
 136 void VM::run()
 137 {
 138         event->drive();
 139 }
 140
 141 // ----------------------------------------------------------------------------
 142 // debugger
 143 // ----------------------------------------------------------------------------
 144
 145 #ifdef USE_DEBUGGER
 146 DEVICE *VM::get_cpu(int index)
 147 {
 148         if(index == 0) {
 149                 return cpu;
 150         }
 151         return NULL;
 152 }
 153 #endif
 154
 155 // ----------------------------------------------------------------------------
 156 // draw screen
 157 // ----------------------------------------------------------------------------
 158
 159 void VM::draw_screen()
 160 {
 161         io->draw_screen();
 162 }
 163
 164 // ----------------------------------------------------------------------------
 165 // soud manager
 166 // ----------------------------------------------------------------------------
 167
 168 void VM::initialize_sound(int rate, int samples)
 169 {
 170         // init sound manager
 171         event->initialize_sound(rate, samples);
 172 }
 173
 174 uint16_t* VM::create_sound(int* extra_frames)
 175 {
 176         return event->create_sound(extra_frames);
 177 }
 178
 179 int VM::get_sound_buffer_ptr()
 180 {
 181         return event->get_sound_buffer_ptr();
 182 }
 183
 184 #ifdef USE_SOUND_VOLUME
 185 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 186 {
 187         if(ch == 0) {
 188                 drec->set_volume(0, decibel_l, decibel_r);
 189         } else if(ch == 1) {
 190                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 191                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 192                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 193         }
 194 }
 195 #endif
 196
 197 // ----------------------------------------------------------------------------
 198 // user interface
 199 // ----------------------------------------------------------------------------
 200
 201 void VM::play_tape(int drv, const _TCHAR* file_path)
 202 {
 203         if(drec->play_tape(file_path)) {
 204                 drec->set_remote(true);
 205                 io->open_tape();
 206         }
 207 }
 208
 209 void VM::rec_tape(int drv, const _TCHAR* file_path)
 210 {
 211         if(drec->rec_tape(file_path)) {
 212                 drec->set_remote(true);
 213                 io->open_tape();
 214         }
 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   4
 286
 287 #include "../../statesub.h"
 288 #include "../../qt/gui/csp_logger.h"
 289 extern CSP_Logger DLL_PREFIX_I *csp_logger;
 290
 291 void VM::decl_state(void)
 292 {
 293
 294         state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::YALKY_HEAD")), csp_logger);
 295         DECL_STATE_ENTRY_1D_ARRAY(ram, sizeof(ram));
 296         DECL_STATE_ENTRY_1D_ARRAY(vram, sizeof(vram));
 297         for(DEVICE* device = first_device; device; device = device->next_device) {
 298                 device->decl_state();
 299         }
 300 }
 301
 302 void VM::save_state(FILEIO* state_fio)
 303 {
 304         //state_fio->FputUint32(STATE_VERSION);
 305
 306         if(state_entry != NULL) {
 307                 state_entry->save_state(state_fio);
 308         }
 309         for(DEVICE* device = first_device; device; device = device->next_device) {
 310                 device->save_state(state_fio);
 311         }
 312         //state_fio->Fwrite(ram, sizeof(ram), 1);
 313         //state_fio->Fwrite(vram, sizeof(vram), 1);
 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         //state_fio->Fread(ram, sizeof(ram), 1);
 335         //state_fio->Fread(vram, sizeof(vram), 1);
 336         return true;
 337 }
 338