// license:BSD-3-Clause // copyright-holders:David Haywood /* Radica 'Mega Drive' and 'Genesis' clones these were mini battery operated "TV Game" consoles with wired in controller and no cartslot fully licensed by Sega reproduction 'System on a Chip' hardware, not perfect, flaws will need emulating eventually. not dumped Genesis Volume 2 Genesis SF2 / GnG (PAL one is locked to PAL) Outrun 2019 (probably identical ROM to MD version, just custom controller) more? */ #include "emu.h" #include "includes/megadriv.h" #include "includes/megadriv_rad.h" // todo, use actual MD map, easier once maps are part of base class. void megadriv_radica_state::megadriv_radica_map(address_map &map) { map(0x000000, 0x3fffff).r(FUNC(megadriv_radica_state::read)); /* Cartridge Program Rom */ map(0xa00000, 0xa01fff).rw(FUNC(megadriv_radica_state::megadriv_68k_read_z80_ram), FUNC(megadriv_radica_state::megadriv_68k_write_z80_ram)); map(0xa02000, 0xa03fff).w(FUNC(megadriv_radica_state::megadriv_68k_write_z80_ram)); map(0xa04000, 0xa04003).rw(FUNC(megadriv_radica_state::megadriv_68k_YM2612_read), FUNC(megadriv_radica_state::megadriv_68k_YM2612_write)); map(0xa06000, 0xa06001).w(FUNC(megadriv_radica_state::megadriv_68k_z80_bank_write)); map(0xa10000, 0xa1001f).rw(FUNC(megadriv_radica_state::megadriv_68k_io_read), FUNC(megadriv_radica_state::megadriv_68k_io_write)); map(0xa11100, 0xa11101).rw(FUNC(megadriv_radica_state::megadriv_68k_check_z80_bus), FUNC(megadriv_radica_state::megadriv_68k_req_z80_bus)); map(0xa11200, 0xa11201).w(FUNC(megadriv_radica_state::megadriv_68k_req_z80_reset)); map(0xa13000, 0xa130ff).r(FUNC(megadriv_radica_state::read_a13)); map(0xc00000, 0xc0001f).rw(m_vdp, FUNC(sega315_5313_device::vdp_r), FUNC(sega315_5313_device::vdp_w)); map(0xe00000, 0xe0ffff).ram().mirror(0x1f0000).share("megadrive_ram"); } READ16_MEMBER(megadriv_radica_state::read) { return m_rom[(((m_bank * 0x10000) + (offset << 1)) & (0x400000 - 1))/2]; } READ16_MEMBER(megadriv_radica_state::read_a13) { if (offset < 0x80) m_bank = offset & 0x3f; // low bit gets set when selecting cannon fodder or mega lo mania in the rad_ssoc set, pointing to the wrong area, but rad_gen1 needs it for the menu // as they're standalones it could just be different logic if (m_bank != 0x3f) m_bank &= 0x3e; return 0; } // controller is wired directly into unit, no controller slots static INPUT_PORTS_START( megadriv_radica_3button ) PORT_INCLUDE( md_common ) PORT_MODIFY("PAD1") PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START1 ) PORT_MODIFY("PAD2") PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START2 ) INPUT_PORTS_END // the 6-in-1 and Sonic Gold units really only have a single wired controller, and no way to connect a 2nd one, despite having some 2 player games! static INPUT_PORTS_START( megadriv_radica_3button_1player ) PORT_INCLUDE( megadriv_radica_3button ) PORT_MODIFY("PAD2") PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNUSED ) INPUT_PORTS_END static INPUT_PORTS_START( megadriv_radica_6button ) PORT_INCLUDE( megadriv_radica_3button ) PORT_START("EXTRA1") /* Extra buttons for Joypad 1 (6 button + start + mode) NOT READ DIRECTLY */ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(1) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(1) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("EXTRA2") /* Extra buttons for Joypad 2 (6 button + start + mode) NOT READ DIRECTLY */ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(2) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(2) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("IN0") PORT_START("UNK") INPUT_PORTS_END MACHINE_START_MEMBER(megadriv_radica_state, megadriv_radica_6button) { MACHINE_START_CALL_MEMBER(megadriv); m_vdp->stop_timers(); m_io_pad_6b[0] = ioport("EXTRA1"); m_io_pad_6b[1] = ioport("EXTRA2"); m_io_pad_6b[2] = ioport("IN0"); m_io_pad_6b[3] = ioport("UNK"); // setup timers for 6 button pads for (int i = 0; i < 3; i++) m_io_timeout[i] = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(md_base_state::io_timeout_timer_callback),this), (void*)(uintptr_t)i); save_item(NAME(m_bank)); } MACHINE_START_MEMBER(megadriv_radica_state, megadriv_radica_3button) { MACHINE_START_CALL_MEMBER(megadriv); m_vdp->stop_timers(); save_item(NAME(m_bank)); } MACHINE_RESET_MEMBER(megadriv_radica_state, megadriv_radica) { m_bank = 0; MACHINE_RESET_CALL_MEMBER(megadriv); } void megadriv_radica_state::megadriv_radica_3button_ntsc(machine_config &config) { md_ntsc(config); m_maincpu->set_addrmap(AS_PROGRAM, &megadriv_radica_state::megadriv_radica_map); MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_3button) MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) } void megadriv_radica_state::megadriv_radica_3button_pal(machine_config &config) { md_pal(config); m_maincpu->set_addrmap(AS_PROGRAM, &megadriv_radica_state::megadriv_radica_map); MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_3button) MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) } void megadriv_radica_state::megadriv_radica_6button_pal(machine_config &config) { md_pal(config); m_maincpu->set_addrmap(AS_PROGRAM, &megadriv_radica_state::megadriv_radica_map); MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_6button) MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) } ROM_START( rad_sf ) ROM_REGION( 0x400000, "maincpu", 0 ) ROM_LOAD16_WORD_SWAP( "radicasf.bin", 0x000000, 0x400000, CRC(868afb44) SHA1(f4339e36272c18b1d49aa4095127ed18e0961df6) ) ROM_END ROM_START( rad_gen1 ) ROM_REGION( 0x400000, "maincpu", 0 ) ROM_LOAD16_WORD_SWAP( "radicav1.bin", 0x000000, 0x400000, CRC(3b4c8438) SHA1(5ed9c053f9ebc8d4bf571d57e562cf347585d158) ) ROM_END ROM_START( rad_ssoc ) ROM_REGION( 0x400000, "maincpu", 0 ) ROM_LOAD( "sensiblesoccer.bin", 0x000000, 0x400000, CRC(b8745ab3) SHA1(0ab3f26e5ffd288e5a3a5db676951b9095299eb0) ) // should be byteswapped? ROM_END void megadriv_radica_state::init_megadriv_radica_6button_pal() { init_megadrie(); // 6 button game, so overwrite 3 button io handlers m_megadrive_io_read_data_port_ptr = read8_delegate(*this, FUNC(md_base_state::megadrive_io_read_data_port_6button)); m_megadrive_io_write_data_port_ptr = write16_delegate(*this, FUNC(md_base_state::megadrive_io_write_data_port_6button)); } // NTSC releases CONS( 2004, rad_gen1, 0, 0, megadriv_radica_3button_ntsc, megadriv_radica_3button_1player, megadriv_radica_state, init_megadriv, "Radica / Sega", "Genesis Collection Volume 1 (Radica, Arcade Legends) (USA)", 0) // PAL releases CONS( 2004, rad_sf, 0, 0, megadriv_radica_6button_pal, megadriv_radica_6button, megadriv_radica_state, init_megadriv_radica_6button_pal, "Radica / Capcom / Sega", "Street Fighter II: Special Champion Edition [Ghouls'n Ghosts] (Radica, Arcade Legends) (Europe)", 0) // SF2 game is region locked, US version ROM is definitely different CONS( 2004, rad_ssoc, 0, 0, megadriv_radica_3button_pal, megadriv_radica_3button, megadriv_radica_state, init_megadrie, "Radica / Sensible Software / Sega", "Sensible Soccer plus [Cannon Fodder, Mega lo Mania] (Radica, Arcade Legends) (Europe)", 0) // still branded as Arcade Legends even if none of these were ever arcade games