/* Brazilian bootleg board from 1989. Forte II Games, Industria Brasileira.
MAME driver by Mariusz Wojcieszek & hap, based on information from Alexandre.
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 rough translation of the text after inserting a coin: Coins won't accumulate,
insert a new coin after the game is over if you want another play.
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"
class forte2_state : public driver_device
{
public:
forte2_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
UINT8 m_input_mask;
};
static ADDRESS_MAP_START( program_mem, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0xbfff) AM_ROM
AM_RANGE(0xc000, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( io_mem, AS_IO, 8 )
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x98, 0x98) AM_DEVREADWRITE_MODERN( "tms9928a", tms9928a_device, vram_read, vram_write )
AM_RANGE(0x99, 0x99) AM_DEVREADWRITE_MODERN( "tms9928a", tms9928a_device, register_read, register_write )
AM_RANGE(0xa0, 0xa1) AM_DEVWRITE("aysnd", ay8910_address_data_w)
AM_RANGE(0xa2, 0xa2) AM_DEVREAD("aysnd", ay8910_r)
/* Ports a8-ab are originally for communicating with the i8255 PPI on MSX.
Since this arcade board doesn't have one, those ports should be unmapped. */
// AM_RANGE(0xa8, 0xa8) AM_RAM
// AM_RANGE(0xa9, 0xab) AM_NOP
ADDRESS_MAP_END
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
static READ8_DEVICE_HANDLER(forte2_ay8910_read_input)
{
forte2_state *state = device->machine().driver_data<forte2_state>();
return input_port_read(device->machine(), "IN0") | (state->m_input_mask&0x3f);
}
static WRITE8_DEVICE_HANDLER( forte2_ay8910_set_input_mask )
{
forte2_state *state = device->machine().driver_data<forte2_state>();
/* PSG reg 15, writes 0 at coin insert, 0xff at boot and game over */
state->m_input_mask = data;
}
static const ay8910_interface forte2_ay8910_interface =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_HANDLER(forte2_ay8910_read_input),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_HANDLER(forte2_ay8910_set_input_mask)
};
static WRITE_LINE_DEVICE_HANDLER(vdp_interrupt)
{
cputag_set_input_line(device->machine(), "maincpu", 0, (state ? HOLD_LINE : CLEAR_LINE));
}
static TMS9928A_INTERFACE(forte2_tms9928a_interface)
{
"screen",
0x4000,
DEVCB_LINE(vdp_interrupt)
};
static SCREEN_UPDATE( forte2 )
{
tms9928a_device *tms9928a = screen->machine().device<tms9928a_device>( "tms9928a" );
tms9928a->update( bitmap, cliprect );
return 0;
}
static MACHINE_RESET( forte2 )
{
forte2_state *state = machine.driver_data<forte2_state>();
state->m_input_mask = 0xff;
}
static MACHINE_START( forte2 )
{
forte2_state *state = machine.driver_data<forte2_state>();
/* register for save states */
state_save_register_global(machine, state->m_input_mask);
}
static MACHINE_CONFIG_START( pesadelo, forte2_state )
MCFG_CPU_ADD("maincpu", Z80, XTAL_3_579545MHz)
MCFG_CPU_PROGRAM_MAP(program_mem)
MCFG_CPU_IO_MAP(io_mem)
MCFG_MACHINE_START( forte2 )
MCFG_MACHINE_RESET( forte2 )
/* video hardware */
MCFG_TMS9928A_ADD( "tms9928a", TMS9928A, forte2_tms9928a_interface )
MCFG_TMS9928A_SCREEN_ADD_NTSC( "screen" )
MCFG_SCREEN_UPDATE( forte2 )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd", AY8910, (float)XTAL_3_579545MHz/2)
MCFG_SOUND_CONFIG(forte2_ay8910_interface)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_CONFIG_END
static DRIVER_INIT(pesadelo)
{
int i;
UINT8 *mem = machine.region("maincpu")->base();
int memsize = machine.region("maincpu")->bytes();
UINT8 *buf;
// data swap
for ( i = 0; i < memsize; i++ )
{
mem[i] = BITSWAP8(mem[i],3,5,6,7,0,4,2,1);
}
// address line swap
buf = auto_alloc_array(machine, UINT8, memsize);
memcpy(buf, mem, memsize);
for ( i = 0; i < memsize; i++ )
{
mem[BITSWAP16(i,11,9,8,13,14,15,12,7,6,5,4,3,2,1,0,10)] = buf[i];
}
auto_free(machine, buf);
}
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, pesadelo, ROT0, "bootleg (Forte II Games) / Konami", "Pesadelo (bootleg of Knightmare on MSX)", GAME_SUPPORTS_SAVE )