--- /dev/null
+/*
+ CASIO FX-9000P Emulator 'eFX-9000P'
+
+ Author : Takeda.Toshiya
+ Date : 2022.03.25-
+
+ [ virtual machine ]
+*/
+
+#include "fx9000p.h"
+#include "../../emu.h"
+#include "../device.h"
+#include "../event.h"
+
+#include "../datarec.h"
+#include "../hd46505.h"
+#include "../memory.h"
+#include "../noise.h"
+#include "../z80.h"
+
+#ifdef USE_DEBUGGER
+#include "../debugger.h"
+#endif
+
+#include "io.h"
+
+// ----------------------------------------------------------------------------
+// initialize
+// ----------------------------------------------------------------------------
+
+VM::VM(EMU* parent_emu) : VM_TEMPLATE(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);
+ drec->set_context_noise_play(new NOISE(this, emu));
+ drec->set_context_noise_stop(new NOISE(this, emu));
+ drec->set_context_noise_fast(new NOISE(this, emu));
+ crtc = new HD46505(this, emu);
+ memory = new MEMORY(this, emu);
+ cpu = new Z80(this, emu);
+
+ io = new IO(this, emu);
+
+ // set contexts
+ event->set_context_cpu(cpu);
+ event->set_context_sound(drec);
+ event->set_context_sound(drec->get_context_noise_play());
+ event->set_context_sound(drec->get_context_noise_stop());
+ event->set_context_sound(drec->get_context_noise_fast());
+
+ drec->set_context_ear(io, SIG_IO_EAR, 1);
+ crtc->set_context_disp(io, SIG_IO_DISP, 1);
+
+ io->set_context_cpu(cpu);
+ io->set_context_crtc(crtc);
+ io->set_context_drec(drec);
+
+ // cpu bus
+ cpu->set_context_mem(memory);
+ cpu->set_context_io(io);
+ cpu->set_context_intr(dummy);
+#ifdef USE_DEBUGGER
+ cpu->set_context_debugger(new DEBUGGER(this, emu));
+#endif
+
+ // memory bus
+ memset(basic, 0xff, sizeof(basic));
+ memset(op1, 0xff, sizeof(op1));
+ memset(vram, 0x00, sizeof(vram));
+#if 0
+ memset(dram, 0x00, sizeof(dram));
+ memset(cmos, 0x00, sizeof(cmos));
+#else
+ // initial ram contents ???
+ for(int i = 0; i < sizeof(dram); i++) {
+ dram[i] = (0x2e + i) & 0xff;
+ }
+ for(int i = 0; i < sizeof(cmos); i++) {
+ cmos[i] = (0x2e + i) & 0xff;
+ }
+#endif
+
+ memory->read_bios(_T("BASIC.ROM"), basic, sizeof(basic));
+ memory->read_bios(_T("OP1.ROM"), op1, sizeof(op1));
+ memory->read_bios(_T("RAM.BIN"), cmos, sizeof(cmos));
+
+ memory->set_memory_r(0x0000, 0x2fff, basic);
+ memory->set_memory_r(0x5000, 0x5fff, op1);
+ memory->set_memory_mapped_io_rw(0x6000, 0x6fff, io);
+ memory->set_memory_rw(0x7000, 0x7fff, vram);
+ memory->set_memory_rw(0x8000, 0xbfff, dram);
+ memory->set_memory_rw(0xc000, 0xefff, cmos);
+
+ // initialize all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->initialize();
+ }
+}
+
+VM::~VM()
+{
+ memory->write_bios(_T("RAM.BIN"), cmos, sizeof(cmos));
+
+ // 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()
+{
+ io->draw_screen(vram);
+}
+
+
+// ----------------------------------------------------------------------------
+// notify key
+// ----------------------------------------------------------------------------
+
+void VM::key_down(int code, bool repeat)
+{
+ if(!repeat) {
+ io->key_down(code);
+ }
+}
+
+void VM::key_up(int code)
+{
+}
+
+// ----------------------------------------------------------------------------
+// soud manager
+// ----------------------------------------------------------------------------
+
+void VM::initialize_sound(int rate, int samples)
+{
+ // init sound manager
+ event->initialize_sound(rate, samples);
+}
+
+uint16_t* VM::create_sound(int* extra_frames)
+{
+ return event->create_sound(extra_frames);
+}
+
+int VM::get_sound_buffer_ptr()
+{
+ return event->get_sound_buffer_ptr();
+}
+
+#ifdef USE_SOUND_VOLUME
+void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
+{
+ if(ch == 0) {
+ drec->set_volume(0, decibel_l, decibel_r);
+ } else if(ch == 1) {
+ drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
+ drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
+ drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
+ }
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// user interface
+// ----------------------------------------------------------------------------
+
+void VM::play_tape(int drv, const _TCHAR* file_path)
+{
+ bool remote = drec->get_remote();
+
+ if(drec->play_tape(file_path) && remote) {
+ // if machine already sets remote on, start playing now
+ push_play(drv);
+ }
+}
+
+void VM::rec_tape(int drv, const _TCHAR* file_path)
+{
+ bool remote = drec->get_remote();
+
+ if(drec->rec_tape(file_path) && remote) {
+ // if machine already sets remote on, start recording now
+ push_play(drv);
+ }
+}
+
+void VM::close_tape(int drv)
+{
+ emu->lock_vm();
+ drec->close_tape();
+ emu->unlock_vm();
+ drec->set_remote(false);
+}
+
+bool VM::is_tape_inserted(int drv)
+{
+ return drec->is_tape_inserted();
+}
+
+bool VM::is_tape_playing(int drv)
+{
+ return drec->is_tape_playing();
+}
+
+bool VM::is_tape_recording(int drv)
+{
+ return drec->is_tape_recording();
+}
+
+int VM::get_tape_position(int drv)
+{
+ return drec->get_tape_position();
+}
+
+const _TCHAR* VM::get_tape_message(int drv)
+{
+ return drec->get_message();
+}
+
+void VM::push_play(int drv)
+{
+ drec->set_remote(false);
+ drec->set_ff_rew(0);
+ drec->set_remote(true);
+}
+
+void VM::push_stop(int drv)
+{
+ drec->set_remote(false);
+}
+
+void VM::push_fast_forward(int drv)
+{
+ drec->set_remote(false);
+ drec->set_ff_rew(1);
+ drec->set_remote(true);
+}
+
+void VM::push_fast_rewind(int drv)
+{
+ drec->set_remote(false);
+ drec->set_ff_rew(-1);
+ drec->set_remote(true);
+}
+
+bool VM::is_frame_skippable()
+{
+ return event->is_frame_skippable();
+}
+
+void VM::update_config()
+{
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->update_config();
+ }
+}
+
+#define STATE_VERSION 1
+
+bool VM::process_state(FILEIO* state_fio, bool loading)
+{
+ if(!state_fio->StateCheckUint32(STATE_VERSION)) {
+ return false;
+ }
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ const _TCHAR *name = char_to_tchar(typeid(*device).name() + 6); // skip "class "
+ int len = (int)_tcslen(name);
+
+ if(!state_fio->StateCheckInt32(len)) {
+ return false;
+ }
+ if(!state_fio->StateCheckBuffer(name, len, 1)) {
+ return false;
+ }
+ if(!device->process_state(state_fio, loading)) {
+ return false;
+ }
+ }
+ state_fio->StateArray(vram, sizeof(vram), 1);
+ state_fio->StateArray(dram, sizeof(dram), 1);
+ state_fio->StateArray(cmos, sizeof(cmos), 1);
+ return true;
+}
+
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