// license:BSD-3-Clause // copyright-holders:hap, Mariusz Wojcieszek /* Brazilian bootleg board from 1989. Forte II Games, Industria Brasileira. MAME driver by Mariusz Wojcieszek & hap, based on information from Alexandre Souza (a.k.a. "Tabajara"). Hardware is based on MSX1, excluding i8255 PPI: 64KB RAM, largely unused 64KB EPROM (2764-15, contains hacked BIOS and game ROM) Z80 @ 3.58MHz GI AY-3-8910 TI TMS9928A (no dipswitches) Games: Pesadelo (means 'nightmare' in Portuguese), 1989 bootleg of Knightmare (Majou Densetsu in Japan) (C) 1986 Konami, originally released exclusively on MSX. This arcade conversion has been made a bit harder, eg. bonus power-ups deplete three times quicker, and the game starts at a later, more difficult level. A precise translation of the Brazilian Portuguese text displayed upon inserting a coin is: NIGHTMARE DIFFICULTY-LEVEL 2 DOES NOT ACCUMULATE CREDITS , ONLY INSERT A NEW COIN AFTER THE END OF THE GAME IN ORDER TO START THE GAME PRESS THE FIRE BUTTON. GOOD LUCK! If the coin detector is activated for a few seconds, an error message meaning STUCK COIN shows up blinking and beeping: FICHA PRESA According to Alexandre, there are more games for this board, but not found/dumped yet. */ #include "emu.h" #include "cpu/z80/z80.h" #include "video/tms9928a.h" #include "sound/ay8910.h" #include "screen.h" #include "speaker.h" class forte2_state : public driver_device { public: forte2_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } void init_pesadelo(); void pesadelo(machine_config &config); private: virtual void machine_start() override; virtual void machine_reset() override; void io_mem(address_map &map); void program_mem(address_map &map); DECLARE_READ8_MEMBER(ay8910_read_input); DECLARE_WRITE8_MEMBER(ay8910_set_input_mask); required_device m_maincpu; uint8_t m_input_mask; }; void forte2_state::program_mem(address_map &map) { map(0x0000, 0xbfff).rom(); map(0xc000, 0xffff).ram(); } void forte2_state::io_mem(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x98, 0x99).rw("tms9928a", FUNC(tms9928a_device::read), FUNC(tms9928a_device::write)); map(0xa0, 0xa1).w("aysnd", FUNC(ay8910_device::address_data_w)); map(0xa2, 0xa2).r("aysnd", FUNC(ay8910_device::data_r)); // map(0xa8, 0xa8).ram(); // Ports a8-ab are originally for communicating with the i8255 PPI on MSX. // map(0xa9, 0xab).noprw(); // Since this arcade board doesn't have one, those ports should be unmapped. } static INPUT_PORTS_START( pesadelo ) PORT_START("IN0") PORT_BIT (0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_BIT (0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_BIT (0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_BIT (0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_BIT (0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_BIT (0x20, IP_ACTIVE_LOW, IPT_START1) PORT_BIT (0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT (0x80, IP_ACTIVE_LOW, IPT_COIN1) INPUT_PORTS_END READ8_MEMBER(forte2_state::ay8910_read_input) { return ioport("IN0")->read() | (m_input_mask & 0x3f); } WRITE8_MEMBER(forte2_state::ay8910_set_input_mask) { /* PSG reg 15, writes 0 at coin insert, 0xff at boot and game over */ m_input_mask = data; } void forte2_state::machine_reset() { m_input_mask = 0xff; } void forte2_state::machine_start() { /* register for save states */ save_item(NAME(m_input_mask)); } void forte2_state::pesadelo(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, XTAL(3'579'545)); m_maincpu->set_addrmap(AS_PROGRAM, &forte2_state::program_mem); m_maincpu->set_addrmap(AS_IO, &forte2_state::io_mem); /* video hardware */ tms9928a_device &vdp(TMS9928A(config, "tms9928a", XTAL(10'738'635))); vdp.set_screen("screen"); vdp.set_vram_size(0x4000); vdp.int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); SCREEN(config, "screen", SCREEN_TYPE_RASTER); /* sound hardware */ SPEAKER(config, "mono").front_center(); ay8910_device &aysnd(AY8910(config, "aysnd", XTAL(3'579'545)/2)); aysnd.port_a_read_callback().set(FUNC(forte2_state::ay8910_read_input)); aysnd.port_b_write_callback().set(FUNC(forte2_state::ay8910_set_input_mask)); aysnd.add_route(ALL_OUTPUTS, "mono", 0.50); } void forte2_state::init_pesadelo() { uint8_t *mem = memregion("maincpu")->base(); int memsize = memregion("maincpu")->bytes(); // data swap for (int i = 0; i < memsize; i++) { mem[i] = bitswap<8>(mem[i],3,5,6,7,0,4,2,1); } // address line swap std::vector buf(&mem[0], &mem[memsize]); for (int i = 0; i < memsize; i++) { mem[bitswap<16>(i,11,9,8,13,14,15,12,7,6,5,4,3,2,1,0,10)] = buf[i]; } } ROM_START( pesadelo ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "epr2764.15", 0x00000, 0x10000, CRC(1ae2f724) SHA1(12880dd7ad82acf04861843fb9d4f0f926d18f6b) ) ROM_END GAME( 1989, pesadelo, 0, pesadelo, pesadelo, forte2_state, init_pesadelo, ROT0, "bootleg (Forte II Games)", "Pesadelo (bootleg of Konami Knightmare)", MACHINE_SUPPORTS_SAVE )