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_TEMPLATE* 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         io->space = 0x100;
  57         vdp = new MC6847(this, emu);
  58         not_vsync = new NOT(this, emu);
  59         psg = new AY_3_891X(this, emu);
  60 #ifdef USE_DEBUGGER
  61         psg->set_context_debugger(new DEBUGGER(this, emu));
  62 #endif
  63         cpu = new Z80(this, emu);
  64         not_vsync->set_device_name(_T("NOT GATE(VSYNC)"));
  65
  66         joystick = new JOYSTICK(this, emu);
  67         keyboard = new KEYBOARD(this, emu);
  68         memory = new MEMORY(this, emu);
  69         system = new SYSTEM(this, emu);
  70         // set contexts
  71         event->set_context_cpu(cpu);
  72         event->set_context_sound(psg);
  73         event->set_context_sound(drec);
  74         event->set_context_sound(drec->get_context_noise_play());
  75         event->set_context_sound(drec->get_context_noise_stop());
  76         event->set_context_sound(drec->get_context_noise_fast());
  77
  78         vdp->load_font_image(create_local_path(_T("FONT.ROM")));
  79         vdp->set_vram_ptr(memory->get_vram(), 0x1800);
  80 //      vdp->set_context_cpu(cpu);
  81         vdp->set_context_vsync(not_vsync, SIG_NOT_INPUT, 1);
  82         not_vsync->set_context_out(cpu, SIG_CPU_IRQ, 1);
  83
  84         vdp->set_context_vsync(system, SIG_SYSTEM_PORT, 0x10);
  85         drec->set_context_ear(system, SIG_SYSTEM_PORT, 0x20);
  86         // bit6: printer busy
  87         vdp->set_context_hsync(system, SIG_SYSTEM_PORT, 0x80);
  88
  89         joystick->set_context_psg(psg);
  90 #ifdef _MAP1010
  91         memory->set_context_keyboard(keyboard);
  92 #endif
  93         system->set_context_drec(drec);
  94         system->set_context_vdp(vdp);
  95
  96         // cpu bus
  97         cpu->set_context_mem(memory);
  98         cpu->set_context_io(io);
  99         cpu->set_context_intr(dummy);
 100 #ifdef USE_DEBUGGER
 101         cpu->set_context_debugger(new DEBUGGER(this, emu));
 102 #endif
 103
 104         // i/o bus
 105         io->set_iomap_single_rw(0x40, system);
 106 #ifndef _MAP1010
 107         io->set_iomap_range_r(0x80, 0x88, keyboard);
 108 #endif
 109         io->set_iomap_alias_w(0xc0, psg, 1);    // PSG data
 110         io->set_iomap_alias_w(0xc1, psg, 0);    // PSG ch
 111 //      io->set_iomap_alias_r(0xc0, psg, 1);
 112         io->set_iomap_alias_r(0xc1, psg, 1);    // PSG data
 113
 114         // initialize all devices
 115 #if defined(__GIT_REPO_VERSION)
 116         set_git_repo_version(__GIT_REPO_VERSION);
 117 #endif
 118         initialize_devices();
 119 }
 120
 121 VM::~VM()
 122 {
 123         // delete all devices
 124         for(DEVICE* device = first_device; device;) {
 125                 DEVICE *next_device = device->next_device;
 126                 device->release();
 127                 delete device;
 128                 device = next_device;
 129         }
 130 }
 131
 132 DEVICE* VM::get_device(int id)
 133 {
 134         for(DEVICE* device = first_device; device; device = device->next_device) {
 135                 if(device->this_device_id == id) {
 136                         return device;
 137                 }
 138         }
 139         return NULL;
 140 }
 141
 142 // ----------------------------------------------------------------------------
 143 // drive virtual machine
 144 // ----------------------------------------------------------------------------
 145
 146 void VM::reset()
 147 {
 148         // reset all devices
 149         for(DEVICE* device = first_device; device; device = device->next_device) {
 150                 device->reset();
 151         }
 152 }
 153
 154 void VM::run()
 155 {
 156         event->drive();
 157 }
 158
 159 // ----------------------------------------------------------------------------
 160 // debugger
 161 // ----------------------------------------------------------------------------
 162
 163 #ifdef USE_DEBUGGER
 164 DEVICE *VM::get_cpu(int index)
 165 {
 166         if(index == 0) {
 167                 return cpu;
 168         }
 169         return NULL;
 170 }
 171 #endif
 172
 173 // ----------------------------------------------------------------------------
 174 // draw screen
 175 // ----------------------------------------------------------------------------
 176
 177 void VM::draw_screen()
 178 {
 179         vdp->draw_screen();
 180 }
 181
 182 // ----------------------------------------------------------------------------
 183 // soud manager
 184 // ----------------------------------------------------------------------------
 185
 186 void VM::initialize_sound(int rate, int samples)
 187 {
 188         // init sound manager
 189         event->initialize_sound(rate, samples);
 190
 191         // init sound gen
 192         psg->initialize_sound(rate, 1996750, samples, 0, 0);
 193 }
 194
 195 uint16_t* VM::create_sound(int* extra_frames)
 196 {
 197         return event->create_sound(extra_frames);
 198 }
 199
 200 int VM::get_sound_buffer_ptr()
 201 {
 202         return event->get_sound_buffer_ptr();
 203 }
 204
 205 #ifdef USE_SOUND_VOLUME
 206 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 207 {
 208         if(ch == 0) {
 209                 psg->set_volume(1, decibel_l, decibel_r);
 210         } else if(ch == 1) {
 211                 drec->set_volume(0, decibel_l, decibel_r);
 212         } else if(ch == 2) {
 213                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 214                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 215                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 216         }
 217 }
 218 #endif
 219
 220 // ----------------------------------------------------------------------------
 221 // user interface
 222 // ----------------------------------------------------------------------------
 223
 224 void VM::play_tape(int drv, const _TCHAR* file_path)
 225 {
 226         bool remote = drec->get_remote();
 227
 228         if(drec->play_tape(file_path) && remote) {
 229                 // if machine already sets remote on, start playing now
 230                 push_play(drv);
 231         }
 232 }
 233
 234 void VM::rec_tape(int drv, const _TCHAR* file_path)
 235 {
 236         bool remote = drec->get_remote();
 237
 238         if(drec->rec_tape(file_path) && remote) {
 239                 // if machine already sets remote on, start recording now
 240                 push_play(drv);
 241         }
 242 }
 243
 244 void VM::close_tape(int drv)
 245 {
 246         emu->lock_vm();
 247         drec->close_tape();
 248         emu->unlock_vm();
 249         drec->set_remote(false);
 250 }
 251
 252 bool VM::is_tape_inserted(int drv)
 253 {
 254         return drec->is_tape_inserted();
 255 }
 256
 257 bool VM::is_tape_playing(int drv)
 258 {
 259         return drec->is_tape_playing();
 260 }
 261
 262 bool VM::is_tape_recording(int drv)
 263 {
 264         return drec->is_tape_recording();
 265 }
 266
 267 int VM::get_tape_position(int drv)
 268 {
 269         return drec->get_tape_position();
 270 }
 271
 272 const _TCHAR* VM::get_tape_message(int drv)
 273 {
 274         return drec->get_message();
 275 }
 276
 277 void VM::push_play(int drv)
 278 {
 279         drec->set_remote(false);
 280         drec->set_ff_rew(0);
 281         drec->set_remote(true);
 282 }
 283
 284 void VM::push_stop(int drv)
 285 {
 286         drec->set_remote(false);
 287 }
 288
 289 void VM::push_fast_forward(int drv)
 290 {
 291         drec->set_remote(false);
 292         drec->set_ff_rew(1);
 293         drec->set_remote(true);
 294 }
 295
 296 void VM::push_fast_rewind(int drv)
 297 {
 298         drec->set_remote(false);
 299         drec->set_ff_rew(-1);
 300         drec->set_remote(true);
 301 }
 302
 303 bool VM::is_frame_skippable()
 304 {
 305         return event->is_frame_skippable();
 306 }
 307
 308 void VM::update_config()
 309 {
 310         for(DEVICE* device = first_device; device; device = device->next_device) {
 311                 device->update_config();
 312         }
 313 }
 314
 315 double VM::get_current_usec()
 316 {
 317         if(event == NULL) return 0.0;
 318         return event->get_current_usec();
 319 }
 320
 321 uint64_t VM::get_current_clock_uint64()
 322 {
 323                 if(event == NULL) return (uint64_t)0;
 324                 return event->get_current_clock_uint64();
 325 }
 326
 327 #define STATE_VERSION   5
 328
 329 bool VM::process_state(FILEIO* state_fio, bool loading)
 330 {
 331         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
 332                 return false;
 333         }
 334         // Machine specified.
 335         return true;
 336 }