-/*\r
- SHARP MZ-2800 Emulator 'EmuZ-2800'\r
-\r
- Author : Takeda.Toshiya\r
- Date : 2007.08.13 -\r
-\r
- [ virtual machine ]\r
-*/\r
-\r
-#include "mz2800.h"\r
-#include "../../emu.h"\r
-#include "../device.h"\r
-#include "../event.h"\r
-\r
-#include "../i8253.h"\r
-#include "../i8255.h"\r
-#include "../i8259.h"\r
-#include "../i286.h"\r
-#include "../io.h"\r
-#include "../mb8877.h"\r
-#include "../pcm1bit.h"\r
-#include "../rp5c01.h"\r
-//#include "../sasi.h"\r
-#include "../upd71071.h"\r
-#include "../ym2203.h"\r
-#include "../z80pio.h"\r
-#include "../z80sio.h"\r
-\r
-#ifdef USE_DEBUGGER\r
-#include "../debugger.h"\r
-#endif\r
-\r
-#include "crtc.h"\r
-#include "floppy.h"\r
-#include "joystick.h"\r
-#include "keyboard.h"\r
-#include "memory.h"\r
-#include "mouse.h"\r
-#include "reset.h"\r
-#include "serial.h"\r
-#include "sysport.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
- cpu = new I286(this, emu);\r
- pit = new I8253(this, emu);\r
- pio0 = new I8255(this, emu);\r
- pic = new I8259(this, emu);\r
- io = new IO(this, emu);\r
- fdc = new MB8877(this, emu);\r
- pcm = new PCM1BIT(this, emu);\r
- rtc = new RP5C01(this, emu); // RP-5C15\r
-// sasi = new SASI(this, emu);\r
- dma = new UPD71071(this, emu);\r
- opn = new YM2203(this, emu);\r
- pio1 = new Z80PIO(this, emu);\r
- sio = new Z80SIO(this, emu);\r
- \r
- crtc = new CRTC(this, emu);\r
- floppy = new FLOPPY(this, emu);\r
- joystick = new JOYSTICK(this, emu);\r
- keyboard = new KEYBOARD(this, emu);\r
- memory = new MEMORY(this, emu);\r
- mouse = new MOUSE(this, emu);\r
- rst = new RESET(this, emu);\r
- serial = new SERIAL(this, emu);\r
- sysport = new SYSPORT(this, emu);\r
- \r
- // set contexts\r
- event->set_context_cpu(cpu);\r
- event->set_context_sound(opn);\r
- event->set_context_sound(pcm);\r
- \r
- pit->set_constant_clock(0, 31250);\r
- pit->set_constant_clock(2, 31250);\r
- pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);\r
- pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);\r
- pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);\r
- pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);\r
- pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);\r
- pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);\r
- pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);\r
- pic->set_context_cpu(cpu);\r
- fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);\r
- fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);\r
- rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);\r
- rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);\r
-// sasi->set_context_drq(dma, SIG_UPD71071_CH0, 1);\r
-// sasi->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR4, 1);\r
- dma->set_context_memory(memory);\r
-// dma->set_context_ch0(sasi);\r
- dma->set_context_ch1(fdc);\r
- dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);\r
- opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);\r
- opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);\r
- opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);\r
- pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);\r
- pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);\r
- sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);\r
- sio->set_context_dtr1(mouse, SIG_MOUSE_DTR, 1);\r
- \r
- crtc->set_context_pic(pic);\r
- crtc->set_context_pio(pio0);\r
- crtc->set_vram_ptr(memory->get_vram());\r
- crtc->set_tvram_ptr(memory->get_tvram());\r
- crtc->set_kanji_ptr(memory->get_kanji());\r
- crtc->set_pcg_ptr(memory->get_pcg());\r
- floppy->set_context_fdc(fdc);\r
- keyboard->set_context_pio0(pio0);\r
- keyboard->set_context_pio1(pio1);\r
- memory->set_context_crtc(crtc);\r
- mouse->set_context_sio(sio);\r
- serial->set_context_sio(sio);\r
- sysport->set_context_pit(pit);\r
- sysport->set_context_sio(sio);\r
- \r
- // cpu bus\r
- cpu->set_context_mem(memory);\r
- cpu->set_context_io(io);\r
- cpu->set_context_intr(pic);\r
-#ifdef SINGLE_MODE_DMA\r
- cpu->set_context_dma(dma);\r
-#endif\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(0x70, 0x7f, dma);\r
- io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);\r
- io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);\r
- io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);\r
- io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);\r
- io->set_iomap_range_rw(0x8c, 0x8d, memory);\r
- io->set_iovalue_single_r(0x8e, 0xff); // dipswitch\r
- io->set_flipflop_single_rw(0x8f, 0x00); // shut\r
- io->set_iomap_range_rw(0xa0, 0xa3, serial);\r
- for(uint32 p = 0xae; p <= 0x1fae; p += 0x100) {\r
- io->set_iomap_single_w(p, crtc);\r
- }\r
-// io->set_iomap_single_rw(0xaf, sasi);\r
- io->set_iomap_range_rw(0xb0, 0xb3, serial);\r
- io->set_iomap_single_r(0xbe, sysport);\r
- io->set_iomap_range_rw(0xc8, 0xc9, opn);\r
- io->set_iovalue_single_r(0xca, 0x7f); // voice communication ???\r
- for(uint32 p = 0xcc; p <= 0xfcc; p += 0x100) {\r
- io->set_iomap_alias_rw(p, rtc, p >> 8);\r
- }\r
- io->set_iomap_single_w(0xcd, serial);\r
- io->set_iomap_single_rw(0xce, memory);\r
- io->set_iomap_range_rw(0xd8, 0xdb, fdc);\r
- io->set_iomap_range_w(0xdc, 0xdf, floppy);\r
- io->set_iomap_range_rw(0xe0, 0xe3, pio0);\r
- io->set_iomap_range_rw(0xe4, 0xe7, pit);\r
- io->set_iomap_range_rw(0xe8, 0xeb, pio1);\r
- io->set_iomap_single_rw(0xef, joystick);\r
-// io->set_iomap_range_w(0xf0, 0xf3, sysport);\r
- io->set_iomap_single_w(0x170, crtc);\r
- io->set_iomap_single_w(0x172, crtc);\r
- io->set_iomap_single_w(0x174, crtc);\r
- io->set_iomap_single_w(0x176, crtc);\r
- io->set_iomap_range_w(0x178, 0x17b, crtc);\r
- io->set_iomap_single_w(0x270, crtc);\r
- io->set_iomap_single_w(0x272, crtc);\r
- io->set_iomap_single_rw(0x274, memory);\r
- \r
- // initialize all devices\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->initialize();\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
- // temporary fix...\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->reset();\r
- }\r
- \r
- // set initial port status\r
- pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);\r
- opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);\r
-}\r
-\r
-void VM::cpu_reset()\r
-{\r
- cpu->reset();\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
- crtc->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
- opn->init(rate, 2000000, samples, 0, -8);\r
- pcm->init(rate, 4096);\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_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
-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
+/*
+ SHARP MZ-2800 Emulator 'EmuZ-2800'
+
+ Author : Takeda.Toshiya
+ Date : 2007.08.13 -
+
+ [ virtual machine ]
+*/
+
+#include "mz2800.h"
+#include "../../emu.h"
+#include "../device.h"
+#include "../event.h"
+
+#include "../i8253.h"
+#include "../i8255.h"
+#include "../i8259.h"
+#include "../i286.h"
+#include "../io.h"
+#include "../mb8877.h"
+#include "../pcm1bit.h"
+#include "../rp5c01.h"
+//#include "../sasi.h"
+#include "../upd71071.h"
+#include "../ym2203.h"
+#include "../z80pio.h"
+#include "../z80sio.h"
+
+#ifdef USE_DEBUGGER
+#include "../debugger.h"
+#endif
+
+#include "crtc.h"
+#include "floppy.h"
+#include "joystick.h"
+#include "keyboard.h"
+#include "memory.h"
+#include "mouse.h"
+#include "reset.h"
+#include "serial.h"
+#include "sysport.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
+
+ cpu = new I286(this, emu);
+ pit = new I8253(this, emu);
+ pio0 = new I8255(this, emu);
+ pic = new I8259(this, emu);
+ io = new IO(this, emu);
+ fdc = new MB8877(this, emu);
+ pcm = new PCM1BIT(this, emu);
+ rtc = new RP5C01(this, emu); // RP-5C15
+// sasi = new SASI(this, emu);
+ dma = new UPD71071(this, emu);
+ opn = new YM2203(this, emu);
+ pio1 = new Z80PIO(this, emu);
+ sio = new Z80SIO(this, emu);
+
+ crtc = new CRTC(this, emu);
+ floppy = new FLOPPY(this, emu);
+ joystick = new JOYSTICK(this, emu);
+ keyboard = new KEYBOARD(this, emu);
+ memory = new MEMORY(this, emu);
+ mouse = new MOUSE(this, emu);
+ rst = new RESET(this, emu);
+ serial = new SERIAL(this, emu);
+ sysport = new SYSPORT(this, emu);
+
+ // set contexts
+ event->set_context_cpu(cpu);
+ event->set_context_sound(opn);
+ event->set_context_sound(pcm);
+
+ pit->set_constant_clock(0, 31250);
+ pit->set_constant_clock(2, 31250);
+ pit->set_context_ch0(pit, SIG_I8253_CLOCK_1, 1);
+ pit->set_context_ch0(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 1);
+ pit->set_context_ch1(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 1);
+ pit->set_context_ch2(pic, SIG_I8259_CHIP1 | SIG_I8259_IR0, 1);
+ pio0->set_context_port_c(rst, SIG_RESET_CONTROL, 0xff, 0);
+ pio0->set_context_port_c(crtc, SIG_CRTC_MASK, 0x01, 0);
+ pio0->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x04, 0);
+ pic->set_context_cpu(cpu);
+ fdc->set_context_drq(dma, SIG_UPD71071_CH1, 1);
+ fdc->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR5, 1);
+ rtc->set_context_alarm(pic, SIG_I8259_CHIP1 | SIG_I8259_IR2, 1);
+ rtc->set_context_pulse(opn, SIG_YM2203_PORT_B, 8);
+// sasi->set_context_drq(dma, SIG_UPD71071_CH0, 1);
+// sasi->set_context_irq(pic, SIG_I8259_CHIP0 | SIG_I8259_IR4, 1);
+ dma->set_context_memory(memory);
+// dma->set_context_ch0(sasi);
+ dma->set_context_ch1(fdc);
+ dma->set_context_tc(pic, SIG_I8259_CHIP0 | SIG_I8259_IR3, 1);
+ opn->set_context_irq(pic, SIG_I8259_CHIP1 | SIG_I8259_IR7, 1);
+ opn->set_context_port_a(crtc, SIG_CRTC_PALLETE, 0x04, 0);
+ opn->set_context_port_a(mouse, SIG_MOUSE_SEL, 0x08, 0);
+ pio1->set_context_port_a(crtc, SIG_CRTC_COLUMN_SIZE, 0x20, 0);
+ pio1->set_context_port_a(keyboard, SIG_KEYBOARD_COLUMN, 0xff, 0);
+ sio->set_context_intr(pic, SIG_I8259_CHIP0 | SIG_I8259_IR2);
+ sio->set_context_dtr1(mouse, SIG_MOUSE_DTR, 1);
+
+ crtc->set_context_pic(pic);
+ crtc->set_context_pio(pio0);
+ crtc->set_vram_ptr(memory->get_vram());
+ crtc->set_tvram_ptr(memory->get_tvram());
+ crtc->set_kanji_ptr(memory->get_kanji());
+ crtc->set_pcg_ptr(memory->get_pcg());
+ floppy->set_context_fdc(fdc);
+ keyboard->set_context_pio0(pio0);
+ keyboard->set_context_pio1(pio1);
+ memory->set_context_crtc(crtc);
+ mouse->set_context_sio(sio);
+ serial->set_context_sio(sio);
+ sysport->set_context_pit(pit);
+ sysport->set_context_sio(sio);
+
+ // cpu bus
+ cpu->set_context_mem(memory);
+ cpu->set_context_io(io);
+ cpu->set_context_intr(pic);
+#ifdef SINGLE_MODE_DMA
+ cpu->set_context_dma(dma);
+#endif
+#ifdef USE_DEBUGGER
+ cpu->set_context_debugger(new DEBUGGER(this, emu));
+#endif
+
+ // i/o bus
+ io->set_iomap_range_rw(0x70, 0x7f, dma);
+ io->set_iomap_alias_rw(0x80, pic, I8259_ADDR_CHIP0 | 0);
+ io->set_iomap_alias_rw(0x81, pic, I8259_ADDR_CHIP0 | 1);
+ io->set_iomap_alias_rw(0x82, pic, I8259_ADDR_CHIP1 | 0);
+ io->set_iomap_alias_rw(0x83, pic, I8259_ADDR_CHIP1 | 1);
+ io->set_iomap_range_rw(0x8c, 0x8d, memory);
+ io->set_iovalue_single_r(0x8e, 0xff); // dipswitch
+ io->set_flipflop_single_rw(0x8f, 0x00); // shut
+ io->set_iomap_range_rw(0xa0, 0xa3, serial);
+ for(uint32 p = 0xae; p <= 0x1fae; p += 0x100) {
+ io->set_iomap_single_w(p, crtc);
+ }
+// io->set_iomap_single_rw(0xaf, sasi);
+ io->set_iomap_range_rw(0xb0, 0xb3, serial);
+ io->set_iomap_single_r(0xbe, sysport);
+ io->set_iomap_range_rw(0xc8, 0xc9, opn);
+ io->set_iovalue_single_r(0xca, 0x7f); // voice communication ???
+ for(uint32 p = 0xcc; p <= 0xfcc; p += 0x100) {
+ io->set_iomap_alias_rw(p, rtc, p >> 8);
+ }
+ io->set_iomap_single_w(0xcd, serial);
+ io->set_iomap_single_rw(0xce, memory);
+ io->set_iomap_range_rw(0xd8, 0xdb, fdc);
+ io->set_iomap_range_w(0xdc, 0xdf, floppy);
+ io->set_iomap_range_rw(0xe0, 0xe3, pio0);
+ io->set_iomap_range_rw(0xe4, 0xe7, pit);
+ io->set_iomap_range_rw(0xe8, 0xeb, pio1);
+ io->set_iomap_single_rw(0xef, joystick);
+// io->set_iomap_range_w(0xf0, 0xf3, sysport);
+ io->set_iomap_single_w(0x170, crtc);
+ io->set_iomap_single_w(0x172, crtc);
+ io->set_iomap_single_w(0x174, crtc);
+ io->set_iomap_single_w(0x176, crtc);
+ io->set_iomap_range_w(0x178, 0x17b, crtc);
+ io->set_iomap_single_w(0x270, crtc);
+ io->set_iomap_single_w(0x272, crtc);
+ io->set_iomap_single_rw(0x274, memory);
+
+ // initialize all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->initialize();
+ }
+}
+
+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();
+ }
+ // temporary fix...
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->reset();
+ }
+
+ // set initial port status
+ pio0->write_signal(SIG_I8255_PORT_B, 0x7c, 0xff);
+ opn->write_signal(SIG_YM2203_PORT_B, 0x37, 0xff);
+}
+
+void VM::cpu_reset()
+{
+ cpu->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()
+{
+ crtc->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
+ opn->init(rate, 2000000, samples, 0, -8);
+ pcm->init(rate, 4096);
+}
+
+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_disk(int drv, _TCHAR* file_path, int offset)
+{
+ fdc->open_disk(drv, file_path, offset);
+}
+
+void VM::close_disk(int drv)
+{
+ fdc->close_disk(drv);
+}
+
+bool VM::disk_inserted(int drv)
+{
+ return fdc->disk_inserted(drv);
+}
+
+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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