source/src/vm/phc25/phc25.cpp

   1 /*
   2         SANYO PHC-25 Emulator 'ePHC-25'
   3         SEIKO MAP-1010 Emulator 'eMAP-1010'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2010.08.03-
   7
   8         [ virtual machine ]
   9 */
  10
  11 #include "phc25.h"
  12 #include "../../emu.h"
  13 #include "../device.h"
  14 #include "../event.h"
  15
  16 #include "../datarec.h"
  17 #include "../io.h"
  18 #include "../mc6847.h"
  19 #include "../noise.h"
  20 #include "../not.h"
  21 //#include "../ym2203.h"
  22 #include "../ay_3_891x.h"
  23 #include "../z80.h"
  24
  25 #ifdef USE_DEBUGGER
  26 #include "../debugger.h"
  27 #endif
  28
  29 #include "joystick.h"
  30 #include "keyboard.h"
  31 #include "./memory.h"
  32 #include "./system.h"
  33
  34 using PHC25::JOYSTICK;
  35 using PHC25::KEYBOARD;
  36 using PHC25::MEMORY;
  37 using PHC25::SYSTEM;
  38
  39 // ----------------------------------------------------------------------------
  40 // initialize
  41 // ----------------------------------------------------------------------------
  42
  43 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  44 {
  45         // create devices
  46         first_device = last_device = NULL;
  47         dummy = new DEVICE(this, emu);  // must be 1st device
  48         event = new EVENT(this, emu);   // must be 2nd device
  49         dummy->set_device_name(_T("1st Dummy"));
  50
  51         drec = new DATAREC(this, emu);
  52         drec->set_context_noise_play(new NOISE(this, emu));
  53         drec->set_context_noise_stop(new NOISE(this, emu));
  54         drec->set_context_noise_fast(new NOISE(this, emu));
  55         io = new IO(this, emu);
  56         vdp = new MC6847(this, emu);
  57         not_vsync = new NOT(this, emu);
  58 //      psg = new YM2203(this, emu);
  59         psg = new AY_3_891X(this, emu);
  60         cpu = new Z80(this, emu);
  61         not_vsync->set_device_name(_T("NOT GATE(VSYNC)"));
  62
  63         joystick = new JOYSTICK(this, emu);
  64         keyboard = new KEYBOARD(this, emu);
  65         memory = new MEMORY(this, emu);
  66         system = new SYSTEM(this, emu);
  67         // set contexts
  68         event->set_context_cpu(cpu);
  69         event->set_context_sound(psg);
  70         event->set_context_sound(drec);
  71         event->set_context_sound(drec->get_context_noise_play());
  72         event->set_context_sound(drec->get_context_noise_stop());
  73         event->set_context_sound(drec->get_context_noise_fast());
  74
  75         vdp->load_font_image(create_local_path(_T("FONT.ROM")));
  76         vdp->set_vram_ptr(memory->get_vram(), 0x1800);
  77 //      vdp->set_context_cpu(cpu);
  78         vdp->set_context_vsync(not_vsync, SIG_NOT_INPUT, 1);
  79         not_vsync->set_context_out(cpu, SIG_CPU_IRQ, 1);
  80
  81         vdp->set_context_vsync(system, SIG_SYSTEM_PORT, 0x10);
  82         drec->set_context_ear(system, SIG_SYSTEM_PORT, 0x20);
  83         // bit6: printer busy
  84         vdp->set_context_hsync(system, SIG_SYSTEM_PORT, 0x80);
  85
  86         joystick->set_context_psg(psg);
  87 #ifdef _MAP1010
  88         memory->set_context_keyboard(keyboard);
  89 #endif
  90         system->set_context_drec(drec);
  91         system->set_context_vdp(vdp);
  92
  93         // cpu bus
  94         cpu->set_context_mem(memory);
  95         cpu->set_context_io(io);
  96         cpu->set_context_intr(dummy);
  97 #ifdef USE_DEBUGGER
  98         cpu->set_context_debugger(new DEBUGGER(this, emu));
  99 #endif
 100
 101         // i/o bus
 102         io->set_iomap_single_rw(0x40, system);
 103 #ifndef _MAP1010
 104         io->set_iomap_range_r(0x80, 0x88, keyboard);
 105 #endif
 106         io->set_iomap_alias_w(0xc0, psg, 1);    // PSG data
 107         io->set_iomap_alias_w(0xc1, psg, 0);    // PSG ch
 108 //      io->set_iomap_alias_r(0xc0, psg, 1);
 109         io->set_iomap_alias_r(0xc1, psg, 1);    // PSG data
 110
 111         // initialize all devices
 112 #if defined(__GIT_REPO_VERSION)
 113         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
 114 #endif
 115         for(DEVICE* device = first_device; device; device = device->next_device) {
 116                 device->initialize();
 117         }
 118 }
 119
 120 VM::~VM()
 121 {
 122         // delete all devices
 123         for(DEVICE* device = first_device; device;) {
 124                 DEVICE *next_device = device->next_device;
 125                 device->release();
 126                 delete device;
 127                 device = next_device;
 128         }
 129 }
 130
 131 DEVICE* VM::get_device(int id)
 132 {
 133         for(DEVICE* device = first_device; device; device = device->next_device) {
 134                 if(device->this_device_id == id) {
 135                         return device;
 136                 }
 137         }
 138         return NULL;
 139 }
 140
 141 // ----------------------------------------------------------------------------
 142 // drive virtual machine
 143 // ----------------------------------------------------------------------------
 144
 145 void VM::reset()
 146 {
 147         // reset all devices
 148         for(DEVICE* device = first_device; device; device = device->next_device) {
 149                 device->reset();
 150         }
 151 }
 152
 153 void VM::run()
 154 {
 155         event->drive();
 156 }
 157
 158 // ----------------------------------------------------------------------------
 159 // debugger
 160 // ----------------------------------------------------------------------------
 161
 162 #ifdef USE_DEBUGGER
 163 DEVICE *VM::get_cpu(int index)
 164 {
 165         if(index == 0) {
 166                 return cpu;
 167         }
 168         return NULL;
 169 }
 170 #endif
 171
 172 // ----------------------------------------------------------------------------
 173 // draw screen
 174 // ----------------------------------------------------------------------------
 175
 176 void VM::draw_screen()
 177 {
 178         vdp->draw_screen();
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // soud manager
 183 // ----------------------------------------------------------------------------
 184
 185 void VM::initialize_sound(int rate, int samples)
 186 {
 187         // init sound manager
 188         event->initialize_sound(rate, samples);
 189
 190         // init sound gen
 191         psg->initialize_sound(rate, 1996750, samples, 0, 0);
 192 }
 193
 194 uint16_t* VM::create_sound(int* extra_frames)
 195 {
 196         return event->create_sound(extra_frames);
 197 }
 198
 199 int VM::get_sound_buffer_ptr()
 200 {
 201         return event->get_sound_buffer_ptr();
 202 }
 203
 204 #ifdef USE_SOUND_VOLUME
 205 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 206 {
 207         if(ch == 0) {
 208                 psg->set_volume(1, decibel_l, decibel_r);
 209         } else if(ch == 1) {
 210                 drec->set_volume(0, decibel_l, decibel_r);
 211         } else if(ch == 2) {
 212                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 213                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 214                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 215         }
 216 }
 217 #endif
 218
 219 // ----------------------------------------------------------------------------
 220 // user interface
 221 // ----------------------------------------------------------------------------
 222
 223 void VM::play_tape(int drv, const _TCHAR* file_path)
 224 {
 225         drec->play_tape(file_path);
 226 //      drec->set_remote(true);
 227 }
 228
 229 void VM::rec_tape(int drv, const _TCHAR* file_path)
 230 {
 231         drec->rec_tape(file_path);
 232 //      drec->set_remote(true);
 233 }
 234
 235 void VM::close_tape(int drv)
 236 {
 237         emu->lock_vm();
 238         drec->close_tape();
 239         emu->unlock_vm();
 240 //      drec->set_remote(false);
 241 }
 242
 243 bool VM::is_tape_inserted(int drv)
 244 {
 245         return drec->is_tape_inserted();
 246 }
 247
 248 bool VM::is_tape_playing(int drv)
 249 {
 250         return drec->is_tape_playing();
 251 }
 252
 253 bool VM::is_tape_recording(int drv)
 254 {
 255         return drec->is_tape_recording();
 256 }
 257
 258 int VM::get_tape_position(int drv)
 259 {
 260         return drec->get_tape_position();
 261 }
 262
 263 const _TCHAR* VM::get_tape_message(int drv)
 264 {
 265         return drec->get_message();
 266 }
 267
 268 void VM::push_play(int drv)
 269 {
 270         drec->set_ff_rew(0);
 271         drec->set_remote(true);
 272 }
 273
 274 void VM::push_stop(int drv)
 275 {
 276         drec->set_remote(false);
 277 }
 278
 279 void VM::push_fast_forward(int drv)
 280 {
 281         drec->set_ff_rew(1);
 282         drec->set_remote(true);
 283 }
 284
 285 void VM::push_fast_rewind(int drv)
 286 {
 287         drec->set_ff_rew(-1);
 288         drec->set_remote(true);
 289 }
 290
 291 bool VM::is_frame_skippable()
 292 {
 293         return event->is_frame_skippable();
 294 }
 295
 296 void VM::update_config()
 297 {
 298         for(DEVICE* device = first_device; device; device = device->next_device) {
 299                 device->update_config();
 300         }
 301 }
 302
 303 #define STATE_VERSION   4
 304
 305 bool VM::process_state(FILEIO* state_fio, bool loading)
 306 {
 307         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 308                 return false;
 309         }
 310         for(DEVICE* device = first_device; device; device = device->next_device) {
 311                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 312                 // const char *name = typeid(*device).name();
 313                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 314                 const char *name = device->get_device_name();
 315                 int len = strlen(name);
 316
 317                 if(!state_fio->StateCheckInt32(len)) {
 318                         if(loading) {
 319                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 320                         }
 321                         return false;
 322                 }
 323                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 324                         if(loading) {
 325                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 326                         }
 327                         return false;
 328                 }
 329                 if(!device->process_state(state_fio, loading)) {
 330                         if(loading) {
 331                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 332                         }
 333                         return false;
 334                 }
 335         }
 336         // Machine specified.
 337         return true;
 338 }