source/src/vm/smb80te/smb80te.cpp

   1 /*
   2         SHARP SM-B-80TE Emulator 'eSM-B-80TE'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2016.12.29-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "smb80te.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../io.h"
  17 #include "../noise.h"
  18 #include "../not.h"
  19 #include "../z80.h"
  20 #include "../z80pio.h"
  21
  22 #ifdef USE_DEBUGGER
  23 #include "../debugger.h"
  24 #endif
  25
  26 #include "memory.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // initialize
  30 // ----------------------------------------------------------------------------
  31
  32 VM::VM(EMU* parent_emu) : emu(parent_emu)
  33 {
  34         // create devices
  35         first_device = last_device = NULL;
  36         dummy = new DEVICE(this, emu);  // must be 1st device
  37         event = new EVENT(this, emu);   // must be 2nd device
  38
  39         drec = new DATAREC(this, emu);
  40         drec->set_context_noise_play(new NOISE(this, emu));
  41         drec->set_context_noise_stop(new NOISE(this, emu));
  42         drec->set_context_noise_fast(new NOISE(this, emu));
  43         io = new IO(this, emu);
  44         not_ear = new NOT(this, emu);
  45         cpu = new Z80(this, emu);
  46         pio1 = new Z80PIO(this, emu);
  47         pio1->set_device_name(_T("8255 PIO (LEDs/Keyboard/CMT)"));
  48         pio2 = new Z80PIO(this, emu);
  49         pio2->set_device_name(_T("8255 PIO (User)"));
  50
  51         memory = new MEMORY(this, emu);
  52
  53         // set contexts
  54         event->set_context_cpu(cpu);
  55         event->set_context_sound(drec);
  56         event->set_context_sound(drec->get_context_noise_play());
  57         event->set_context_sound(drec->get_context_noise_stop());
  58         event->set_context_sound(drec->get_context_noise_fast());
  59
  60         // PIO1 PA0-7   -> 7seg-LED data
  61         pio1->set_context_port_a(memory, SIG_MEMORY_PIO1_PA, 0xff, 0);
  62         // PIO1 PB0-2   <- Keyboard data
  63         // PIO1 PB3-5   -> 7seg-LED/Keyboard column
  64         pio1->set_context_port_b(memory, SIG_MEMORY_PIO1_PB, 0x38, 0);
  65         // PIO1 PB6     -> MIC
  66         pio1->set_context_port_b(drec, SIG_DATAREC_MIC, 0x40, 0);
  67         // PIO1 PB7     <- NOT <- EAR
  68         drec->set_context_ear(not_ear, SIG_NOT_INPUT, 1);
  69         not_ear->set_context_out(pio1, SIG_Z80PIO_PORT_B, 0x80);
  70
  71         memory->set_context_cpu(cpu);
  72         memory->set_context_drec(drec);
  73         memory->set_context_pio1(pio1);
  74
  75         // cpu bus
  76         cpu->set_context_mem(memory);
  77         cpu->set_context_io(io);
  78         cpu->set_context_intr(pio1);
  79
  80         // z80 family daisy chain
  81         pio1->set_context_intr(cpu, 0);
  82         pio1->set_context_child(pio2);
  83         pio2->set_context_intr(cpu, 1);
  84 #ifdef USE_DEBUGGER
  85         cpu->set_context_debugger(new DEBUGGER(this, emu));
  86 #endif
  87
  88         // i/o bus
  89         io->set_iomap_range_rw(0xd0, 0xd3, pio1);
  90         io->set_iomap_range_rw(0xd4, 0xd7, pio2);
  91         io->set_iomap_range_rw(0xd8, 0xdb, memory);
  92
  93         // initialize all devices
  94         for(DEVICE* device = first_device; device; device = device->next_device) {
  95                 device->initialize();
  96         }
  97 }
  98
  99 VM::~VM()
 100 {
 101         // delete all devices
 102         for(DEVICE* device = first_device; device;) {
 103                 DEVICE *next_device = device->next_device;
 104                 device->release();
 105                 delete device;
 106                 device = next_device;
 107         }
 108 }
 109
 110 DEVICE* VM::get_device(int id)
 111 {
 112         for(DEVICE* device = first_device; device; device = device->next_device) {
 113                 if(device->this_device_id == id) {
 114                         return device;
 115                 }
 116         }
 117         return NULL;
 118 }
 119
 120 // ----------------------------------------------------------------------------
 121 // drive virtual machine
 122 // ----------------------------------------------------------------------------
 123
 124 void VM::reset()
 125 {
 126         // reset all devices
 127         for(DEVICE* device = first_device; device; device = device->next_device) {
 128                 device->reset();
 129         }
 130 }
 131
 132 void VM::run()
 133 {
 134         event->drive();
 135 }
 136
 137 double VM::get_frame_rate()
 138 {
 139         return event->get_frame_rate();
 140 }
 141
 142 // ----------------------------------------------------------------------------
 143 // debugger
 144 // ----------------------------------------------------------------------------
 145
 146 #ifdef USE_DEBUGGER
 147 DEVICE *VM::get_cpu(int index)
 148 {
 149         if(index == 0) {
 150                 return cpu;
 151         }
 152         return NULL;
 153 }
 154 #endif
 155
 156 // ----------------------------------------------------------------------------
 157 // draw screen
 158 // ----------------------------------------------------------------------------
 159
 160 void VM::draw_screen()
 161 {
 162         memory->draw_screen();
 163 }
 164
 165 // ----------------------------------------------------------------------------
 166 // soud manager
 167 // ----------------------------------------------------------------------------
 168
 169 void VM::initialize_sound(int rate, int samples)
 170 {
 171         // init sound manager
 172         event->initialize_sound(rate, samples);
 173 }
 174
 175 uint16_t* VM::create_sound(int* extra_frames)
 176 {
 177         return event->create_sound(extra_frames);
 178 }
 179
 180 int VM::get_sound_buffer_ptr()
 181 {
 182         return event->get_sound_buffer_ptr();
 183 }
 184
 185 #ifdef USE_SOUND_VOLUME
 186 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 187 {
 188         if(ch == 0) {
 189                 drec->set_volume(0, decibel_l, decibel_r);
 190         } else if(ch == 1) {
 191                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 192                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 193                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 194         }
 195 }
 196 #endif
 197
 198 // ----------------------------------------------------------------------------
 199 // notify key
 200 // ----------------------------------------------------------------------------
 201
 202 void VM::key_down(int code, bool repeat)
 203 {
 204         if(code == 0x97 && !repeat) {
 205                 reset();
 206         }
 207 }
 208
 209 void VM::key_up(int code)
 210 {
 211 }
 212
 213 // ----------------------------------------------------------------------------
 214 // user interface
 215 // ----------------------------------------------------------------------------
 216
 217 void VM::play_tape(const _TCHAR* file_path)
 218 {
 219         drec->play_tape(file_path);
 220         drec->set_remote(true);
 221 }
 222
 223 void VM::rec_tape(const _TCHAR* file_path)
 224 {
 225         drec->rec_tape(file_path);
 226         drec->set_remote(true);
 227 }
 228
 229 void VM::close_tape()
 230 {
 231         emu->lock_vm();
 232         drec->close_tape();
 233         emu->unlock_vm();
 234         drec->set_remote(false);
 235 }
 236
 237 bool VM::is_tape_inserted()
 238 {
 239         return drec->is_tape_inserted();
 240 }
 241
 242 bool VM::is_tape_playing()
 243 {
 244         return drec->is_tape_playing();
 245 }
 246
 247 bool VM::is_tape_recording()
 248 {
 249         return drec->is_tape_recording();
 250 }
 251
 252 int VM::get_tape_position()
 253 {
 254         return drec->get_tape_position();
 255 }
 256
 257 const _TCHAR* VM::get_tape_message()
 258 {
 259         return drec->get_message();
 260 }
 261
 262 void VM::load_binary(int drv, const _TCHAR* file_path)
 263 {
 264         if(drv == 0) {
 265                 memory->load_ram(file_path);
 266         }
 267 }
 268
 269 void VM::save_binary(int drv, const _TCHAR* file_path)
 270 {
 271         if(drv == 0) {
 272                 memory->save_ram(file_path);
 273         }
 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   2
 289
 290 void VM::save_state(FILEIO* state_fio)
 291 {
 292         state_fio->FputUint32(STATE_VERSION);
 293
 294         for(DEVICE* device = first_device; device; device = device->next_device) {
 295                 device->save_state(state_fio);
 296         }
 297 }
 298
 299 bool VM::load_state(FILEIO* state_fio)
 300 {
 301         if(state_fio->FgetUint32() != STATE_VERSION) {
 302                 return false;
 303         }
 304         for(DEVICE* device = first_device; device; device = device->next_device) {
 305                 if(!device->load_state(state_fio)) {
 306                         return false;
 307                 }
 308         }
 309         return true;
 310 }
 311