diff options
Diffstat (limited to 'src/mame/drivers/megadriv_rad.cpp')
-rw-r--r-- | src/mame/drivers/megadriv_rad.cpp | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/mame/drivers/megadriv_rad.cpp b/src/mame/drivers/megadriv_rad.cpp new file mode 100644 index 00000000000..2684e2f9434 --- /dev/null +++ b/src/mame/drivers/megadriv_rad.cpp @@ -0,0 +1,191 @@ +// 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. +static ADDRESS_MAP_START( megadriv_radica_map, AS_PROGRAM, 16, megadriv_radica_state ) + AM_RANGE(0x000000, 0x3fffff) AM_READ(read) /* Cartridge Program Rom */ + AM_RANGE(0xa00000, 0xa01fff) AM_READWRITE(megadriv_68k_read_z80_ram, megadriv_68k_write_z80_ram) + AM_RANGE(0xa02000, 0xa03fff) AM_WRITE(megadriv_68k_write_z80_ram) + AM_RANGE(0xa04000, 0xa04003) AM_READWRITE8(megadriv_68k_YM2612_read, megadriv_68k_YM2612_write, 0xffff) + AM_RANGE(0xa06000, 0xa06001) AM_WRITE(megadriv_68k_z80_bank_write) + AM_RANGE(0xa10000, 0xa1001f) AM_READWRITE(megadriv_68k_io_read, megadriv_68k_io_write) + AM_RANGE(0xa11100, 0xa11101) AM_READWRITE(megadriv_68k_check_z80_bus, megadriv_68k_req_z80_bus) + AM_RANGE(0xa11200, 0xa11201) AM_WRITE(megadriv_68k_req_z80_reset) + AM_RANGE(0xa13000, 0xa130ff) AM_READ(read_a13) + AM_RANGE(0xc00000, 0xc0001f) AM_DEVREADWRITE("gen_vdp", sega315_5313_device, vdp_r, vdp_w) + AM_RANGE(0xe00000, 0xe0ffff) AM_RAM AM_MIRROR(0x1f0000) AM_SHARE("megadrive_ram") +ADDRESS_MAP_END + +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); + m_maincpu->reset(); +} + +MACHINE_CONFIG_START(megadriv_radica_state::megadriv_radica_3button_ntsc) + MCFG_FRAGMENT_ADD(md_ntsc) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(megadriv_radica_map) + MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_3button) + MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) +MACHINE_CONFIG_END + +MACHINE_CONFIG_START(megadriv_radica_state::megadriv_radica_3button_pal) + MCFG_FRAGMENT_ADD(md_pal) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(megadriv_radica_map) + MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_3button) + MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) +MACHINE_CONFIG_END + +MACHINE_CONFIG_START(megadriv_radica_state::megadriv_radica_6button_pal) + MCFG_FRAGMENT_ADD(md_pal) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(megadriv_radica_map) + MCFG_MACHINE_START_OVERRIDE(megadriv_radica_state, megadriv_radica_6button) + MCFG_MACHINE_RESET_OVERRIDE(megadriv_radica_state, megadriv_radica) +MACHINE_CONFIG_END + + + + +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 + +DRIVER_INIT_MEMBER(megadriv_radica_state,megadriv_radica_6button_pal) +{ + DRIVER_INIT_CALL(megadrie); + // 6 button game, so overwrite 3 button io handlers + m_megadrive_io_read_data_port_ptr = read8_delegate(FUNC(md_base_state::megadrive_io_read_data_port_6button),this); + m_megadrive_io_write_data_port_ptr = write16_delegate(FUNC(md_base_state::megadrive_io_write_data_port_6button),this); +} + +// NTSC releases +CONS( 2004, rad_gen1,0, 0, megadriv_radica_3button_ntsc, megadriv_radica_3button_1player, megadriv_radica_state, 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, 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, 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 + |