source/src/vm/ex80/ex80.cpp

   1 /*
   2         TOSHIBA EX-80 Emulator 'eEX-80'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.12.10-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "ex80.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../i8080.h"
  16 #include "../i8251.h"
  17 #include "../i8255.h"
  18 #include "../io.h"
  19 #include "../pcm1bit.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "cmt.h"
  26 #include "display.h"
  27 #include "keyboard.h"
  28 #include "./memory.h"
  29
  30 // ----------------------------------------------------------------------------
  31 // initialize
  32 // ----------------------------------------------------------------------------
  33
  34 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  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
  41         sio = new I8251(this, emu);
  42         pio = new I8255(this, emu);
  43         io = new IO(this, emu);
  44         pcm = new PCM1BIT(this, emu);
  45         cpu = new I8080(this, emu);
  46
  47         cmt = new CMT(this, emu);
  48         display = new DISPLAY(this, emu);
  49         keyboard = new KEYBOARD(this, emu);
  50         memory = new EX80_MEMORY(this, emu);
  51         // Set names
  52 #if defined(_USE_QT)
  53         dummy->set_device_name(_T("1st Dummy"));
  54
  55         pio->set_device_name(_T("i8255(SOUND/KEY/DISPLAY)"));
  56         sio->set_device_name(_T("i8251(CMT)"));
  57         pcm->set_device_name(_T("SOUND OUT"));
  58 #endif
  59
  60         // set contexts
  61         event->set_context_cpu(cpu);
  62         event->set_context_sound(pcm);
  63
  64         sio->set_context_out(cmt, SIG_CMT_OUT);
  65         pio->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x08, 0);
  66         pio->set_context_port_c(keyboard, SIG_KEYBOARD_COLUMN, 0x70, 0);
  67         pio->set_context_port_c(display, SIG_DISPLAY_DMA, 0x80, 0);
  68         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  69         //pcm->set_realtime_render(true);
  70
  71         cmt->set_context_sio(sio);
  72         display->set_context_cpu(cpu);
  73         display->set_ram_ptr(memory->get_ram());
  74         keyboard->set_context_pio(pio);
  75         memory->set_context_cpu(cpu);
  76
  77         // cpu bus
  78         cpu->set_context_mem(memory);
  79         cpu->set_context_io(io);
  80         cpu->set_context_intr(dummy);
  81 #ifdef USE_DEBUGGER
  82         cpu->set_context_debugger(new DEBUGGER(this, emu));
  83 #endif
  84
  85         // io bus
  86         io->set_iomap_range_rw(0xdc, 0xdd, sio);
  87         io->set_iomap_range_rw(0xf8, 0xfb, pio);
  88
  89         // initialize all devices
  90 #if defined(__GIT_REPO_VERSION)
  91         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  92 #endif
  93         for(DEVICE* device = first_device; device; device = device->next_device) {
  94                 device->initialize();
  95         }
  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 }
 130
 131 void VM::run()
 132 {
 133         event->drive();
 134 }
 135
 136 // ----------------------------------------------------------------------------
 137 // debugger
 138 // ----------------------------------------------------------------------------
 139
 140 #ifdef USE_DEBUGGER
 141 DEVICE *VM::get_cpu(int index)
 142 {
 143         if(index == 0) {
 144                 return cpu;
 145         }
 146         return NULL;
 147 }
 148 #endif
 149
 150 // ----------------------------------------------------------------------------
 151 // draw screen
 152 // ----------------------------------------------------------------------------
 153
 154 void VM::draw_screen()
 155 {
 156         display->draw_screen();
 157 }
 158
 159 int VM::max_draw_ranges()
 160 {
 161         return (config.monitor_type == 0) ? 9 : 8;
 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         // init sound gen
 174         pcm->initialize_sound(rate, 8000);
 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                 pcm->set_volume(0, decibel_l, decibel_r);
 192         }
 193 }
 194 #endif
 195
 196 // ----------------------------------------------------------------------------
 197 // user interface
 198 // ----------------------------------------------------------------------------
 199
 200 void VM::load_binary(int drv, const _TCHAR* file_path)
 201 {
 202         if(drv == 0) {
 203                 memory->load_binary(file_path);
 204         }
 205 }
 206
 207 void VM::save_binary(int drv, const _TCHAR* file_path)
 208 {
 209         if(drv == 0) {
 210                 memory->save_binary(file_path);
 211         }
 212 }
 213
 214 void VM::play_tape(int drv, const _TCHAR* file_path)
 215 {
 216         cmt->play_tape(file_path);
 217 }
 218
 219 void VM::rec_tape(int drv, const _TCHAR* file_path)
 220 {
 221         cmt->rec_tape(file_path);
 222 }
 223
 224 void VM::close_tape(int drv)
 225 {
 226         cmt->close_tape();
 227 }
 228
 229 bool VM::is_tape_inserted(int drv)
 230 {
 231         return cmt->is_tape_inserted();
 232 }
 233
 234 bool VM::is_frame_skippable()
 235 {
 236         return event->is_frame_skippable();
 237 }
 238
 239 void VM::update_config()
 240 {
 241         for(DEVICE* device = first_device; device; device = device->next_device) {
 242                 device->update_config();
 243         }
 244 }
 245
 246 #define STATE_VERSION   2
 247
 248 bool VM::process_state(FILEIO* state_fio, bool loading)
 249 {
 250         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 251                 return false;
 252         }
 253         for(DEVICE* device = first_device; device; device = device->next_device) {
 254                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 255                 // const char *name = typeid(*device).name();
 256                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 257                 const char *name = device->get_device_name();
 258                 int len = strlen(name);
 259
 260                 if(!state_fio->StateCheckInt32(len)) {
 261                         if(loading) {
 262                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 263                         }
 264                         return false;
 265                 }
 266                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 267                         if(loading) {
 268                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 269                         }
 270                         return false;
 271                 }
 272                 if(!device->process_state(state_fio, loading)) {
 273                         if(loading) {
 274                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 275                         }
 276                         return false;
 277                 }
 278         }
 279         // Machine specified.
 280         return true;
 281 }
 282