// license:BSD-3-Clause // copyright-holders:Brad Oliver,Fabio Priuli /*************************************************************************** nes.c Driver file to handle emulation of the Nintendo Entertainment System (Famicom). MESS driver by Brad Oliver (bradman@pobox.com), NES sound code by Matt Conte. Based in part on the old xNes code, by Nicolas Hamel, Chuck Mason, Brad Oliver, Richard Bannister and Jeff Mitchell. ***************************************************************************/ #include "emu.h" #include "includes/nes.h" #include "cpu/m6502/n2a03.h" #include "softlist.h" #include "speaker.h" WRITE8_MEMBER(nes_state::nes_vh_sprite_dma_w) { m_ppu->spriteram_dma(space, data); } void nes_state::nes_map(address_map &map) { map(0x0000, 0x07ff).ram().mirror(0x1800); // RAM map(0x2000, 0x3fff).rw(m_ppu, FUNC(ppu2c0x_device::read), FUNC(ppu2c0x_device::write)); // PPU registers map(0x4014, 0x4014).w(FUNC(nes_state::nes_vh_sprite_dma_w)); // stupid address space hole map(0x4016, 0x4016).rw(FUNC(nes_state::nes_in0_r), FUNC(nes_state::nes_in0_w)); // IN0 - input port 1 map(0x4017, 0x4017).r(FUNC(nes_state::nes_in1_r)); // IN1 - input port 2 // 0x4100-0x5fff -> LOW HANDLER defined on a pcb base // 0x6000-0x7fff -> MID HANDLER defined on a pcb base // 0x8000-0xffff -> HIGH HANDLER defined on a pcb base } static INPUT_PORTS_START( nes ) // input devices go through slot options INPUT_PORTS_END static INPUT_PORTS_START( famicom ) // input devices go through slot options PORT_START("FLIPDISK") /* fake key */ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER) PORT_NAME("Change Disk Side") PORT_CODE(KEYCODE_SPACE) INPUT_PORTS_END void nes_state::nes(machine_config &config) { /* basic machine hardware */ n2a03_device &maincpu(N2A03(config, m_maincpu, NTSC_APU_CLOCK)); maincpu.set_addrmap(AS_PROGRAM, &nes_state::nes_map); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_refresh_hz(60.0988); // This isn't used so much to calulate the vblank duration (the PPU code tracks that manually) but to determine // the number of cycles in each scanline for the PPU scanline timer. Since the PPU has 20 vblank scanlines + 2 // non-rendering scanlines, we compensate. This ends up being 2500 cycles for the non-rendering portion, 2273 // cycles for the actual vblank period. m_screen->set_vblank_time(ATTOSECONDS_IN_USEC((113.66/(NTSC_APU_CLOCK.dvalue()/1000000)) * (ppu2c0x_device::VBLANK_LAST_SCANLINE_NTSC-ppu2c0x_device::VBLANK_FIRST_SCANLINE+1+2))); m_screen->set_size(32*8, 262); m_screen->set_visarea(0*8, 32*8-1, 0*8, 30*8-1); m_screen->set_screen_update(FUNC(nes_state::screen_update_nes)); m_screen->screen_vblank().set(FUNC(nes_state::screen_vblank_nes)); PPU_2C02(config, m_ppu); m_ppu->set_cpu_tag(m_maincpu); m_ppu->int_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); /* sound hardware */ SPEAKER(config, "mono").front_center(); maincpu.add_route(ALL_OUTPUTS, "mono", 0.90); NES_CONTROL_PORT(config, m_ctrl1, nes_control_port1_devices, "joypad"); NES_CONTROL_PORT(config, m_ctrl2, nes_control_port2_devices, "joypad"); m_ctrl1->set_screen_tag(m_screen); m_ctrl2->set_screen_tag(m_screen); NES_CART_SLOT(config, m_cartslot, NTSC_APU_CLOCK, nes_cart, nullptr); SOFTWARE_LIST(config, "cart_list").set_original("nes"); SOFTWARE_LIST(config, "ade_list").set_original("nes_ade"); // Camerica/Codemasters Aladdin Deck Enhancer mini-carts SOFTWARE_LIST(config, "ntb_list").set_original("nes_ntbrom"); // Sunsoft Nantettate! Baseball mini-carts SOFTWARE_LIST(config, "kstudio_list").set_original("nes_kstudio"); // Bandai Karaoke Studio expansion carts SOFTWARE_LIST(config, "datach_list").set_original("nes_datach"); // Bandai Datach Joint ROM System mini-carts } void nes_state::nespal(machine_config &config) { nes(config); /* basic machine hardware */ m_maincpu->set_clock(PAL_APU_CLOCK); PPU_2C07(config.replace(), m_ppu); m_ppu->set_cpu_tag(m_maincpu); m_ppu->int_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); m_cartslot->set_clock(PAL_APU_CLOCK); /* video hardware */ m_screen->set_refresh_hz(50.0070); m_screen->set_vblank_time(ATTOSECONDS_IN_USEC((106.53/(PAL_APU_CLOCK.dvalue()/1000000)) * (ppu2c0x_device::VBLANK_LAST_SCANLINE_PAL-ppu2c0x_device::VBLANK_FIRST_SCANLINE+1+2))); m_screen->set_size(32*8, 312); m_screen->set_visarea(0*8, 32*8-1, 0*8, 30*8-1); } void nes_state::famicom(machine_config &config) { nes(config); NES_CONTROL_PORT(config.replace(), m_ctrl1, fc_control_port1_devices, "joypad"); NES_CONTROL_PORT(config.replace(), m_ctrl2, fc_control_port2_devices, "joypad"); NES_CONTROL_PORT(config, m_exp, fc_expansion_devices, nullptr); m_ctrl1->set_screen_tag(m_screen); m_ctrl2->set_screen_tag(m_screen); m_exp->set_screen_tag(m_screen); SOFTWARE_LIST(config, "flop_list").set_original("famicom_flop"); SOFTWARE_LIST(config, "cass_list").set_original("famicom_cass"); } void nes_state::nespalc(machine_config &config) { nespal(config); m_maincpu->set_clock(PALC_APU_CLOCK); m_maincpu->set_addrmap(AS_PROGRAM, &nes_state::nes_map); /* UMC 6538 and friends -- extends time for rendering dummy scanlines */ PPU_PALC(config.replace(), m_ppu); m_ppu->set_cpu_tag(m_maincpu); m_ppu->int_callback().set_inputline("maincpu", INPUT_LINE_NMI); m_cartslot->set_clock(PALC_APU_CLOCK); /* video hardware */ m_screen->set_refresh_hz(50.0070); m_screen->set_vblank_time(ATTOSECONDS_IN_USEC((113.66/(PALC_APU_CLOCK.dvalue()/1000000)) * (ppu2c0x_device::VBLANK_LAST_SCANLINE_PAL-ppu2c0x_device::VBLANK_FIRST_SCANLINE_PALC+1+2))); } void nes_state::famipalc(machine_config &config) { nespalc(config); NES_CONTROL_PORT(config.replace(), m_ctrl1, fc_control_port1_devices, "joypad"); NES_CONTROL_PORT(config.replace(), m_ctrl2, fc_control_port2_devices, "joypad"); NES_CONTROL_PORT(config, m_exp, fc_expansion_devices, nullptr); m_ctrl1->set_screen_tag(m_screen); m_ctrl2->set_screen_tag(m_screen); m_exp->set_screen_tag(m_screen); SOFTWARE_LIST(config, "cass_list").set_original("famicom_cass"); } void nes_state::suborkbd(machine_config &config) { famipalc(config); /* TODO: emulate the parallel port bus! */ m_exp->set_default_option("subor_keyboard"); m_exp->set_fixed(true); } void nes_state::setup_disk(nes_disksys_device *slot) { if (slot) { address_space &space = m_maincpu->space(AS_PROGRAM); // Set up memory handlers space.install_read_handler(0x4020, 0x40ff, read8sm_delegate(*slot, FUNC(nes_disksys_device::read_ex))); space.install_write_handler(0x4020, 0x40ff, write8sm_delegate(*slot, FUNC(nes_disksys_device::write_ex))); space.install_read_handler(0x4100, 0x5fff, read8sm_delegate(*slot, FUNC(device_nes_cart_interface::read_l))); space.install_write_handler(0x4100, 0x5fff, write8sm_delegate(*slot, FUNC(device_nes_cart_interface::write_l))); space.install_read_handler(0x6000, 0x7fff, read8sm_delegate(*slot, FUNC(nes_disksys_device::read_m))); space.install_write_handler(0x6000, 0x7fff, write8sm_delegate(*slot, FUNC(nes_disksys_device::write_m))); space.install_read_handler(0x8000, 0xffff, read8sm_delegate(*slot, FUNC(nes_disksys_device::read_h))); space.install_write_handler(0x8000, 0xffff, write8sm_delegate(*slot, FUNC(nes_disksys_device::write_h))); slot->vram_alloc(0x2000); slot->prgram_alloc(0x8000); slot->pcb_start(machine(), m_ciram.get(), false); m_ppu->space(AS_PROGRAM).install_readwrite_handler(0, 0x1fff, read8sm_delegate(*slot, FUNC(device_nes_cart_interface::chr_r)), write8sm_delegate(*slot, FUNC(device_nes_cart_interface::chr_w))); m_ppu->space(AS_PROGRAM).install_readwrite_handler(0x2000, 0x3eff, read8sm_delegate(*slot, FUNC(device_nes_cart_interface::nt_r)), write8sm_delegate(*slot, FUNC(device_nes_cart_interface::nt_w))); m_ppu->set_scanline_callback(*slot, FUNC(device_nes_cart_interface::scanline_irq)); m_ppu->set_hblank_callback(*slot, FUNC(nes_disksys_device::hblank_irq)); m_ppu->set_latch(*slot, FUNC(device_nes_cart_interface::ppu_latch)); } } MACHINE_START_MEMBER( nes_state, fds ) { m_ciram = std::make_unique(0x800); m_io_disksel = ioport("FLIPDISK"); setup_disk(m_disk); // register saves save_item(NAME(m_last_frame_flip)); save_pointer(NAME(m_ciram), 0x800); } MACHINE_RESET_MEMBER( nes_state, fds ) { // Reset the mapper variables m_disk->pcb_reset(); // the rest is the same as for nes/famicom/dendy m_maincpu->reset(); } void nes_state::fds(machine_config &config) { famicom(config); MCFG_MACHINE_START_OVERRIDE(nes_state, fds) MCFG_MACHINE_RESET_OVERRIDE(nes_state, fds) config.device_remove("nes_slot"); NES_DISKSYS(config, "disk", 0); config.device_remove("cart_list"); config.device_remove("cass_list"); config.device_remove("ade_list"); config.device_remove("ntb_list"); config.device_remove("kstudio_list"); config.device_remove("datach_list"); } MACHINE_START_MEMBER( nes_state, famitwin ) { // start the base nes stuff machine_start(); // if there is no cart inserted, setup the disk expansion instead if (!m_cartslot->exists()) { setup_disk(m_disk); // replace the famicom disk ROM with the famicom twin one (until we modernize the floppy drive) m_maincpu->space(AS_PROGRAM).install_read_bank(0xe000, 0xffff, "ftbios"); membank("ftbios")->set_base(machine().root_device().memregion("maincpu")->base() + 0xe000); } } MACHINE_RESET_MEMBER( nes_state, famitwin ) { // Reset the mapper variables. Will also mark the char-gen ram as dirty m_cartslot->pcb_reset(); // if there is no cart inserted, initialize the disk expansion instead if (!m_cartslot->exists()) m_disk->pcb_reset(); // the rest is the same as for nes/famicom/dendy m_maincpu->reset(); } void nes_state::famitwin(machine_config &config) { famicom(config); MCFG_MACHINE_START_OVERRIDE( nes_state, famitwin ) MCFG_MACHINE_RESET_OVERRIDE( nes_state, famitwin ) m_cartslot->set_must_be_loaded(false); NES_DISKSYS(config, "disk", 0); } ROM_START( nes ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( nespal ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( famicom ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END #define rom_fds rom_famicom ROM_START( famitwin ) ROM_REGION( 0x10000, "maincpu", 0 ) /* Main RAM */ ROM_LOAD( "rp2c33a-02.bin", 0xe000, 0x2000, CRC(4df24a6c) SHA1(e4e41472c454f928e53eb10e0509bf7d1146ecc1) ) // "Famicom" logo instead of Nintendo logo ROM_END ROM_START( m82 ) ROM_REGION( 0x14000, "maincpu", 0 ) /* Main RAM + program banks */ /* Banks to be mapped at 0xe000? More investigations needed... */ ROM_LOAD( "m82_v1_0.bin", 0x10000, 0x4000, CRC(7d56840a) SHA1(cbd2d14fa073273ba58367758f40d67fd8a9106d) ) ROM_END ROM_START( m82p ) /* same as m82 */ ROM_REGION( 0x14000, "maincpu", 0 ) /* Main RAM + program banks */ /* Banks to be mapped at 0xe000? More investigations needed... */ ROM_LOAD( "m82_v1_0.bin", 0x10000, 0x4000, CRC(7d56840a) SHA1(cbd2d14fa073273ba58367758f40d67fd8a9106d) ) ROM_END // see http://www.disgruntleddesigner.com/chrisc/drpcjr/index.html // and http://www.disgruntleddesigner.com/chrisc/drpcjr/DrPCJrMemMap.txt ROM_START( drpcjr ) ROM_REGION( 0x18000, "maincpu", 0 ) /* Main RAM + program banks */ /* 4 banks to be mapped in 0xe000-0xffff (or 8 banks to be mapped in 0xe000-0xefff & 0xf000-0xffff). Banks selected by writing at 0x4180 */ ROM_LOAD("drpcjr_bios.bin", 0x10000, 0x8000, CRC(c8fbef89) SHA1(2cb0a817b31400cdf27817d09bae7e69f41b062b) ) // bios vers. 1.0a // Not sure if we should support this: hacked version 1.5a by Chris Covell with bugfixes and GameGenie support // ROM_LOAD("drpcjr_v1_5_gg.bin", 0x10000, 0x8000, CRC(98f2033b) SHA1(93c114da787a19279d1a46667c2f69b49e25d4f1) ) ROM_END ROM_START( iq501 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( iq502 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( dendy ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( dendy2 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( gchinatv ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END ROM_START( sb486 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) /* Main RAM */ ROM_END /*************************************************************************** Game driver(s) ***************************************************************************/ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME // Nintendo Entertainment System hardware CONS( 1985, nes, 0, 0, nes, nes, nes_state, empty_init, "Nintendo", "Nintendo Entertainment System / Famicom (NTSC)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1987, nespal, nes, 0, nespal, nes, nes_state, empty_init, "Nintendo", "Nintendo Entertainment System (PAL)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) // M82 Display Unit // supports up to twelve cartridge slots CONS( 198?, m82, nes, 0, nes, nes, nes_state, empty_init, "Nintendo", "M82 Display Unit (NTSC)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) CONS( 198?, m82p, nes, 0, nespal, nes, nes_state, empty_init, "Nintendo", "M82 Display Unit (PAL)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // Famicom hardware CONS( 1983, famicom, 0, nes, famicom, famicom, nes_state, init_famicom, "Nintendo", "Famicom", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1983, fds, famicom, 0, fds, famicom, nes_state, init_famicom, "Nintendo", "Famicom (w/ Disk System add-on)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1986, famitwin, famicom, 0, famitwin, famicom, nes_state, init_famicom, "Sharp", "Famicom Twin", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) // Clone hardware // Many knockoffs using derivatives of the UMC board design, later incorporated into single CMOS chips, were manufactured before and past the end of the Famicom's timeline. // !! PAL clones documented here !! // Famicom-based CONS( 1992, iq501, 0, nes, famipalc, nes, nes_state, init_famicom, "Micro Genius", "IQ-501", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1992, iq502, 0, nes, famipalc, nes, nes_state, init_famicom, "Micro Genius", "IQ-502", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1992, dendy, iq501, 0, famipalc, nes, nes_state, init_famicom, "Steepler", "Dendy Classic 1", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 1992, dendy2, iq502, 0, famipalc, nes, nes_state, init_famicom, "Steepler", "Dendy Classic 2", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) CONS( 198?, gchinatv, 0, nes, famipalc, nes, nes_state, init_famicom, "Golden China", "Golden China TV Game", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) // Subor/Xiao Ba Wang hardware and derivatives // These clones implement a keyboard and a parallel port for printing from a word processor. Later models have mice, PS/2 ports, serial ports and a floppy drive. CONS( 1993, sb486, 0, nes, suborkbd, nes, nes_state, init_famicom, "Subor", "SB-486", MACHINE_IMPERFECT_GRAPHICS | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // !! NTSC clones documented here !! // Famicom-based // Bung hardware // Mice, keyboard, etc, including a floppy drive that allows you to run games with a selection of 4 internal "mappers" available on the system. CONS( 1996, drpcjr, 0, nes, famicom, famicom, nes_state, init_famicom, "Bung", "Doctor PC Jr", MACHINE_IMPERFECT_GRAPHICS | MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )