// license:BSD-3-Clause // copyright-holders:R. Belmont /*************************************************************************** Namco M74 board - "Shoot Away II" Skeleton driver by R. Belmont Main CPU: ROMless Mitsubishi M37450 rebadged as Namco C68 custom I/O CPU: TMPZ84C011 M37450 needs on-board timers implemented to go anywhere (see Mitsu '89 single-chip CPU databook on Bitsavers) ****************************************************************************/ #include "emu.h" #include "cpu/z80/tmpz84c011.h" #include "cpu/m6502/m3745x.h" #include "sound/okim6295.h" #include "machine/nvram.h" #include "screen.h" #include "speaker.h" class m74_state : public driver_device { public: m74_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_subcpu(*this, "subcpu") { } void m74(machine_config &config); private: virtual void machine_reset() override; virtual void machine_start() override; uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void c68_map(address_map &map); void sub_map(address_map &map); // devices required_device m_maincpu; required_device m_subcpu; // driver_device overrides virtual void video_start() override; }; void m74_state::machine_reset() { } void m74_state::machine_start() { } void m74_state::video_start() { } uint32_t m74_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; } void m74_state::c68_map(address_map &map) { map(0x8000, 0xffff).rom().region("maincpu", 0x0000); } void m74_state::sub_map(address_map &map) { map(0x0000, 0x7fff).rom().region("subcpu", 0); map(0x8000, 0xffff).ram(); } static INPUT_PORTS_START( m74 ) INPUT_PORTS_END void m74_state::m74(machine_config &config) { M37450(config, m_maincpu, XTAL(8'000'000)); /* C68 @ 8.0MHz - main CPU */ m_maincpu->set_addrmap(AS_PROGRAM, &m74_state::c68_map); TMPZ84C011(config, m_subcpu, XTAL(12'000'000) / 3); /* Z84C011 @ 4 MHz - sub CPU */ m_subcpu->set_addrmap(AS_PROGRAM, &m74_state::sub_map); screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500) /* not accurate */); screen.set_screen_update(FUNC(m74_state::screen_update)); screen.set_size(320, 240); screen.set_visarea(0, 319, 0, 239); SPEAKER(config, "mono").front_center(); OKIM6295(config, "oki", XTAL(1'000'000), okim6295_device::PIN7_HIGH).add_route(ALL_OUTPUTS, "mono", 1.0); } ROM_START(shootaw2) ROM_REGION(0x20000, "maincpu", 0) /* C68 / M37450 program ROM */ ROM_LOAD( "sas1_mpr0c.8l", 0x000000, 0x020000, CRC(21379550) SHA1(2f2b43ca526d1a77c80f81d0e1f22155d90f725d) ) ROM_REGION(0x80000, "subcpu", 0) /* Z84C011 program ROM */ ROM_LOAD( "sas1_spr0.7f", 0x000000, 0x080000, CRC(3bc14ba3) SHA1(7a75281621f23107c5c3c1a09831be2f8bb93540) ) ROM_REGION(0x2000, "at28c64", 0) /* AT28C64 parallel EEPROM (not yet supported by MAME) */ ROM_LOAD( "m28c64a.9l", 0x000000, 0x002000, CRC(d65d4176) SHA1(dd9b529a729685f9535ae7f060f67d75d70d9567) ) ROM_REGION(0x40000, "oki", 0) ROM_LOAD( "unknown_label.5e", 0x000000, 0x040000, CRC(fa75e91e) SHA1(d06ca906135a3f23c1f0dadff75f940ea7ca0e4a) ) ROM_END GAME( 1996, shootaw2, 0, m74, m74, m74_state, empty_init, ROT0, "Namco", "Shoot Away II", MACHINE_NOT_WORKING )