-/*\r
- SEGA GAME GEAR Emulator 'yaGAME GEAR'\r
-\r
- Author : tanam\r
- Date : 2013.08.24-\r
-\r
- [ virtual machine ]\r
-*/\r
-\r
-#include "gamegear.h"\r
-#include "../../emu.h"\r
-#include "../device.h"\r
-#include "../event.h"\r
-\r
-#include "../datarec.h"\r
-#include "../disk.h"\r
-#include "../i8251.h"\r
-#include "../i8255.h"\r
-#include "../io.h"\r
-#include "../sn76489an.h"\r
-#include "../315-5124.h"\r
-#include "../upd765a.h"\r
-#include "../z80.h"\r
-\r
-#ifdef USE_DEBUGGER\r
-#include "../debugger.h"\r
-#endif\r
-\r
-#include "keyboard.h"\r
-#include "memory.h"\r
-#include "system.h"\r
-\r
-// ----------------------------------------------------------------------------\r
-// initialize\r
-// ----------------------------------------------------------------------------\r
-\r
-VM::VM(EMU* parent_emu) : emu(parent_emu)\r
-{\r
- // create devices\r
- first_device = last_device = NULL;\r
- dummy = new DEVICE(this, emu); // must be 1st device\r
- event = new EVENT(this, emu); // must be 2nd device\r
- \r
- drec = new DATAREC(this, emu);\r
- sio = new I8251(this, emu);\r
- pio_k = new I8255(this, emu);\r
- pio_f = new I8255(this, emu);\r
- io = new IO(this, emu);\r
- psg = new SN76489AN(this, emu);\r
- vdp = new _315_5124(this, emu);\r
- fdc = new UPD765A(this, emu);\r
- cpu = new Z80(this, emu);\r
- \r
- key = new KEYBOARD(this, emu);\r
- memory = new MEMORY(this, emu);\r
- system = new SYSTEM(this, emu);\r
-\r
- // set contexts\r
- event->set_context_cpu(cpu);\r
- event->set_context_sound(psg);\r
- \r
- drec->set_context_out(pio_k, SIG_I8255_PORT_B, 0x80);\r
- pio_k->set_context_port_c(key, SIG_KEYBOARD_COLUMN, 0x07, 0);\r
- pio_k->set_context_port_c(drec, SIG_DATAREC_REMOTE, 0x08, 0);\r
- pio_k->set_context_port_c(drec, SIG_DATAREC_OUT, 0x10, 0);\r
- pio_f->set_context_port_c(fdc, SIG_UPD765A_MOTOR_NEG, 2, 0);\r
- pio_f->set_context_port_c(fdc, SIG_UPD765A_TC, 4, 0);\r
- pio_f->set_context_port_c(fdc, SIG_UPD765A_RESET, 8, 0);\r
- pio_f->set_context_port_c(memory, SIG_MEMORY_SEL, 0x40, 0);\r
- fdc->set_context_irq(pio_f, SIG_I8255_PORT_A, 1);\r
- fdc->set_context_index(pio_f, SIG_I8255_PORT_A, 4);\r
- \r
- key->set_context_cpu(cpu);\r
- key->set_context_pio(pio_k);\r
- system->set_context_key(key);\r
- vdp->set_context_psg(psg);\r
- vdp->set_context_key(key);\r
-/// vdp->set_context_cpu(cpu);\r
-\r
- // cpu bus\r
- cpu->set_context_mem(memory);\r
- cpu->set_context_io(io);\r
- cpu->set_context_intr(system);\r
-#ifdef USE_DEBUGGER\r
- cpu->set_context_debugger(new DEBUGGER(this, emu));\r
-#endif\r
-\r
- // i/o bus\r
- io->set_iomap_range_rw(0x00, 0x06, system); // GG START\r
- io->set_iomap_single_w(0x80, system); // COL TENKEY\r
- io->set_iomap_single_w(0xc0, system); // COL JOYPAD\r
- io->set_iomap_range_rw(0xfc, 0xfe, system); // COL JOYPAD\r
- io->set_iomap_range_rw(0xff, 0xff, psg); // COL PSG\r
- io->set_iomap_range_rw(0x7e, 0x7f, vdp); // SG VDP\r
- io->set_iomap_range_rw(0xbe, 0xbf, vdp); // SG VDP\r
- io->set_iomap_range_rw(0xdc, 0xdf, pio_k); // SG KEY\r
- io->set_iomap_range_rw(0xe0, 0xe3, fdc); // SG FDD\r
- io->set_iomap_range_rw(0xe4, 0xe7, pio_f); // SG FDD\r
- io->set_iomap_range_rw(0xe8, 0xe9, sio); // SG SERIAL\r
-\r
- // initialize all devices\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->initialize();\r
- }\r
-\r
- // BIOS\r
- memory->bios();\r
-\r
- for(int i = 0; i < 4; i++) {\r
- fdc->set_drive_type(i, DRIVE_TYPE_2D);\r
- }\r
-}\r
-\r
-VM::~VM()\r
-{\r
- // delete all devices\r
- for(DEVICE* device = first_device; device;) {\r
- DEVICE *next_device = device->next_device;\r
- device->release();\r
- delete device;\r
- device = next_device;\r
- }\r
-}\r
-\r
-DEVICE* VM::get_device(int id)\r
-{\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- if(device->this_device_id == id) {\r
- return device;\r
- }\r
- }\r
- return NULL;\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// drive virtual machine\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::reset()\r
-{\r
- // reset all devices\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->reset();\r
- }\r
-}\r
-\r
-void VM::run()\r
-{\r
- event->drive();\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// debugger\r
-// ----------------------------------------------------------------------------\r
-\r
-#ifdef USE_DEBUGGER\r
-DEVICE *VM::get_cpu(int index)\r
-{\r
- if(index == 0) {\r
- return cpu;\r
- }\r
- return NULL;\r
-}\r
-#endif\r
-\r
-// ----------------------------------------------------------------------------\r
-// draw screen\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::draw_screen()\r
-{\r
- vdp->draw_screen();\r
-}\r
-\r
-int VM::access_lamp()\r
-{\r
- uint32 status = fdc->read_signal(0);\r
- return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// soud manager\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::initialize_sound(int rate, int samples)\r
-{\r
- // init sound manager\r
- event->initialize_sound(rate, samples);\r
- \r
- // init sound gen\r
- psg->init(rate, 3579545, 4000);\r
-}\r
-\r
-uint16* VM::create_sound(int* extra_frames)\r
-{\r
- return event->create_sound(extra_frames);\r
-}\r
-\r
-int VM::sound_buffer_ptr()\r
-{\r
- return event->sound_buffer_ptr();\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// user interface\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::open_cart(int drv, _TCHAR* file_path)\r
-{\r
- if(drv == 0) {\r
- memory->open_cart(file_path);\r
- if (strstr(file_path, ".col") || \r
- strstr(file_path, ".COL")) {\r
- vdp->set_console(0x00);\r
- vdp->set_context_irq(cpu, SIG_CPU_NMI, 1);\r
- memory->bios();\r
- } else {\r
- vdp->set_context_irq(cpu, SIG_CPU_IRQ, 1);\r
- if (strstr(file_path, ".gg") || \r
- strstr(file_path, ".GG")) vdp->set_console(0x40);\r
- else\r
- vdp->set_console(0x20);\r
- }\r
- reset();\r
- }\r
-}\r
-\r
-void VM::close_cart(int drv)\r
-{\r
- if(drv == 0) {\r
- memory->close_cart();\r
- reset();\r
- }\r
-}\r
-\r
-bool VM::cart_inserted(int drv)\r
-{\r
- if(drv == 0) {\r
- return memory->cart_inserted();\r
- } else {\r
- return false;\r
- }\r
-}\r
-\r
-void VM::open_disk(int drv, _TCHAR* file_path, int offset)\r
-{\r
- fdc->open_disk(drv, file_path, offset);\r
-}\r
-\r
-void VM::close_disk(int drv)\r
-{\r
- fdc->close_disk(drv);\r
-}\r
-\r
-bool VM::disk_inserted(int drv)\r
-{\r
- return fdc->disk_inserted(drv);\r
-}\r
-\r
-void VM::play_tape(_TCHAR* file_path)\r
-{\r
- drec->play_tape(file_path);\r
-}\r
-\r
-void VM::rec_tape(_TCHAR* file_path)\r
-{\r
- drec->rec_tape(file_path);\r
-}\r
-\r
-void VM::close_tape()\r
-{\r
- drec->close_tape();\r
-}\r
-\r
-bool VM::tape_inserted()\r
-{\r
- return drec->tape_inserted();\r
-}\r
-\r
-bool VM::now_skip()\r
-{\r
- return event->now_skip();\r
-}\r
-\r
-void VM::update_config()\r
-{\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->update_config();\r
- }\r
-}\r
-\r
+/*
+ SEGA GAME GEAR Emulator 'yaGAME GEAR'
+
+ Author : tanam
+ Date : 2013.08.24-
+
+ [ virtual machine ]
+*/
+
+#include "gamegear.h"
+#include "../../emu.h"
+#include "../device.h"
+#include "../event.h"
+
+#include "../datarec.h"
+#include "../disk.h"
+#include "../i8251.h"
+#include "../i8255.h"
+#include "../io.h"
+#include "../sn76489an.h"
+#include "../315-5124.h"
+#include "../upd765a.h"
+#include "../z80.h"
+
+#ifdef USE_DEBUGGER
+#include "../debugger.h"
+#endif
+
+#include "keyboard.h"
+#include "memory.h"
+#include "system.h"
+
+// ----------------------------------------------------------------------------
+// initialize
+// ----------------------------------------------------------------------------
+
+VM::VM(EMU* parent_emu) : emu(parent_emu)
+{
+ // create devices
+ first_device = last_device = NULL;
+ dummy = new DEVICE(this, emu); // must be 1st device
+ event = new EVENT(this, emu); // must be 2nd device
+
+ drec = new DATAREC(this, emu);
+ sio = new I8251(this, emu);
+ pio_k = new I8255(this, emu);
+ pio_f = new I8255(this, emu);
+ io = new IO(this, emu);
+ psg = new SN76489AN(this, emu);
+ vdp = new _315_5124(this, emu);
+ fdc = new UPD765A(this, emu);
+ cpu = new Z80(this, emu);
+
+ key = new KEYBOARD(this, emu);
+ memory = new MEMORY(this, emu);
+ system = new SYSTEM(this, emu);
+
+ // set contexts
+ event->set_context_cpu(cpu);
+ event->set_context_sound(psg);
+ event->set_context_sound(drec);
+
+ drec->set_context_out(pio_k, SIG_I8255_PORT_B, 0x80);
+ pio_k->set_context_port_c(key, SIG_KEYBOARD_COLUMN, 0x07, 0);
+ pio_k->set_context_port_c(drec, SIG_DATAREC_REMOTE, 0x08, 0);
+ pio_k->set_context_port_c(drec, SIG_DATAREC_OUT, 0x10, 0);
+ pio_f->set_context_port_c(fdc, SIG_UPD765A_MOTOR_NEG, 2, 0);
+ pio_f->set_context_port_c(fdc, SIG_UPD765A_TC, 4, 0);
+ pio_f->set_context_port_c(fdc, SIG_UPD765A_RESET, 8, 0);
+ pio_f->set_context_port_c(memory, SIG_MEMORY_SEL, 0x40, 0);
+ fdc->set_context_irq(pio_f, SIG_I8255_PORT_A, 1);
+ fdc->set_context_index(pio_f, SIG_I8255_PORT_A, 4);
+
+ key->set_context_cpu(cpu);
+ key->set_context_pio(pio_k);
+ system->set_context_key(key);
+ vdp->set_context_psg(psg);
+ vdp->set_context_key(key);
+/// vdp->set_context_cpu(cpu);
+
+ // cpu bus
+ cpu->set_context_mem(memory);
+ cpu->set_context_io(io);
+ cpu->set_context_intr(system);
+#ifdef USE_DEBUGGER
+ cpu->set_context_debugger(new DEBUGGER(this, emu));
+#endif
+
+ // i/o bus
+ io->set_iomap_range_rw(0x00, 0x06, system); // GG START
+ io->set_iomap_single_w(0x80, system); // COL TENKEY
+ io->set_iomap_single_w(0xc0, system); // COL JOYPAD
+ io->set_iomap_range_rw(0xfc, 0xfe, system); // COL JOYPAD
+ io->set_iomap_range_rw(0xff, 0xff, psg); // COL PSG
+ io->set_iomap_range_rw(0x7e, 0x7f, vdp); // SG VDP
+ io->set_iomap_range_rw(0xbe, 0xbf, vdp); // SG VDP
+ io->set_iomap_range_rw(0xdc, 0xdf, pio_k); // SG KEY
+ io->set_iomap_range_rw(0xe0, 0xe3, fdc); // SG FDD
+ io->set_iomap_range_rw(0xe4, 0xe7, pio_f); // SG FDD
+ io->set_iomap_range_rw(0xe8, 0xe9, sio); // SG SERIAL
+
+ // initialize all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->initialize();
+ }
+
+ // BIOS
+ memory->bios();
+
+ for(int i = 0; i < 4; i++) {
+ fdc->set_drive_type(i, DRIVE_TYPE_2D);
+ }
+}
+
+VM::~VM()
+{
+ // delete all devices
+ for(DEVICE* device = first_device; device;) {
+ DEVICE *next_device = device->next_device;
+ device->release();
+ delete device;
+ device = next_device;
+ }
+}
+
+DEVICE* VM::get_device(int id)
+{
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ if(device->this_device_id == id) {
+ return device;
+ }
+ }
+ return NULL;
+}
+
+// ----------------------------------------------------------------------------
+// drive virtual machine
+// ----------------------------------------------------------------------------
+
+void VM::reset()
+{
+ // reset all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->reset();
+ }
+}
+
+void VM::run()
+{
+ event->drive();
+}
+
+// ----------------------------------------------------------------------------
+// debugger
+// ----------------------------------------------------------------------------
+
+#ifdef USE_DEBUGGER
+DEVICE *VM::get_cpu(int index)
+{
+ if(index == 0) {
+ return cpu;
+ }
+ return NULL;
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// draw screen
+// ----------------------------------------------------------------------------
+
+void VM::draw_screen()
+{
+ vdp->draw_screen();
+}
+
+int VM::access_lamp()
+{
+ uint32 status = fdc->read_signal(0);
+ return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
+}
+
+// ----------------------------------------------------------------------------
+// soud manager
+// ----------------------------------------------------------------------------
+
+void VM::initialize_sound(int rate, int samples)
+{
+ // init sound manager
+ event->initialize_sound(rate, samples);
+
+ // init sound gen
+ psg->init(rate, 3579545, 4000);
+}
+
+uint16* VM::create_sound(int* extra_frames)
+{
+ return event->create_sound(extra_frames);
+}
+
+int VM::sound_buffer_ptr()
+{
+ return event->sound_buffer_ptr();
+}
+
+// ----------------------------------------------------------------------------
+// user interface
+// ----------------------------------------------------------------------------
+
+void VM::open_cart(int drv, _TCHAR* file_path)
+{
+ if(drv == 0) {
+ memory->open_cart(file_path);
+ if (strstr(file_path, ".col") ||
+ strstr(file_path, ".COL")) {
+ vdp->set_console(0x00);
+ vdp->set_context_irq(cpu, SIG_CPU_NMI, 1);
+ memory->bios();
+ } else {
+ vdp->set_context_irq(cpu, SIG_CPU_IRQ, 1);
+ if (strstr(file_path, ".gg") ||
+ strstr(file_path, ".GG")) vdp->set_console(0x40);
+ else
+ vdp->set_console(0x20);
+ }
+ reset();
+ }
+}
+
+void VM::close_cart(int drv)
+{
+ if(drv == 0) {
+ memory->close_cart();
+ reset();
+ }
+}
+
+bool VM::cart_inserted(int drv)
+{
+ if(drv == 0) {
+ return memory->cart_inserted();
+ } else {
+ return false;
+ }
+}
+
+void VM::open_disk(int drv, _TCHAR* file_path, int bank)
+{
+ fdc->open_disk(drv, file_path, bank);
+}
+
+void VM::close_disk(int drv)
+{
+ fdc->close_disk(drv);
+}
+
+bool VM::disk_inserted(int drv)
+{
+ return fdc->disk_inserted(drv);
+}
+
+void VM::play_tape(_TCHAR* file_path)
+{
+ drec->play_tape(file_path);
+}
+
+void VM::rec_tape(_TCHAR* file_path)
+{
+ drec->rec_tape(file_path);
+}
+
+void VM::close_tape()
+{
+ drec->close_tape();
+}
+
+bool VM::tape_inserted()
+{
+ return drec->tape_inserted();
+}
+
+bool VM::now_skip()
+{
+ return event->now_skip();
+}
+
+void VM::update_config()
+{
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->update_config();
+ }
+}
+
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