/********************************************************************
Enigma 2 (c) Zilec Electronics
driver by Pierpaolo Prazzoli and Tomasz Slanina
enigma2 (1981)
2xZ80 + AY8910
Original dedicated board
enigma2a (1984?)
Conversion applied to a Taito Space Invaders Part II board set with 1984 copyrighy. hack / Bootleg ?
enigma2b (1981)
Conversion like enigma2a, but boots with 1981 copyright and Phantoms II title
TODO:
- enigma2 - Star blinking frequency
- enigma2a + enigma2b - bad sound ROM?
*********************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "cpu/i8085/i8085.h"
#include "sound/ay8910.h"
#define LOG_PROT (0)
/* these values provide a fairly low refresh rate of around 53Hz, but
they were derived from the schemtics. The horizontal synch chain
counts from 0x0c0-0x1ff and the vertical one from 0x0d8-0x1ff. */
#define MASTER_CLOCK (10000000)
#define CPU_CLOCK (MASTER_CLOCK / 4)
#define PIXEL_CLOCK (MASTER_CLOCK / 2)
#define AY8910_CLOCK (MASTER_CLOCK / 8)
#define HCOUNTER_START (0x0c0)
#define HCOUNTER_END (0x1ff)
#define HTOTAL (HCOUNTER_END + 1 - HCOUNTER_START)
#define HBEND (0x000)
#define HBSTART (0x100)
#define VCOUNTER_START (0x0d8)
#define VCOUNTER_END (0x1ff)
#define VTOTAL (VCOUNTER_END + 1 - VCOUNTER_START)
#define VBEND (0x048)
#define VBSTART (VTOTAL)
/* the IRQ line is cleared (active LO) at these vertical sync counter
values and raised one scan line later */
#define INT_TRIGGER_COUNT_1 (0x10f)
#define INT_TRIGGER_COUNT_2 (0x18f)
#define NUM_PENS (8)
class enigma2_state : public driver_device
{
public:
enigma2_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
/* memory pointers */
UINT8 * m_videoram;
/* misc */
int m_blink_count;
UINT8 m_sound_latch;
UINT8 m_last_sound_data;
UINT8 m_protection_data;
UINT8 m_flip_screen;
emu_timer *m_interrupt_clear_timer;
emu_timer *m_interrupt_assert_timer;
/* devices */
device_t *m_maincpu;
device_t *m_audiocpu;
};
/*************************************
*
* Interrupt generation
*
*************************************/
INLINE UINT16 vpos_to_vysnc_chain_counter( int vpos )
{
return vpos + VCOUNTER_START;
}
INLINE int vysnc_chain_counter_to_vpos( UINT16 counter )
{
return counter - VCOUNTER_START;
}
static TIMER_CALLBACK( interrupt_clear_callback )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
device_set_input_line(state->m_maincpu, 0, CLEAR_LINE);
}
static TIMER_CALLBACK( interrupt_assert_callback )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
UINT16 next_counter;
int next_vpos;
/* compute vector and set the interrupt line */
int vpos = machine.primary_screen->vpos();
UINT16 counter = vpos_to_vysnc_chain_counter(vpos);
UINT8 vector = 0xc7 | ((counter & 0x80) >> 3) | ((~counter & 0x80) >> 4);
device_set_input_line_and_vector(state->m_maincpu, 0, ASSERT_LINE, vector);
/* set up for next interrupt */
if (counter == INT_TRIGGER_COUNT_1)
next_counter = INT_TRIGGER_COUNT_2;
else
next_counter = INT_TRIGGER_COUNT_1;
next_vpos = vysnc_chain_counter_to_vpos(next_counter);
state->m_interrupt_assert_timer->adjust(machine.primary_screen->time_until_pos(next_vpos));
state->m_interrupt_clear_timer->adjust(machine.primary_screen->time_until_pos(vpos + 1));
}
static void create_interrupt_timers( running_machine &machine )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
state->m_interrupt_clear_timer = machine.scheduler().timer_alloc(FUNC(interrupt_clear_callback));
state->m_interrupt_assert_timer = machine.scheduler().timer_alloc(FUNC(interrupt_assert_callback));
}
static void start_interrupt_timers( running_machine &machine )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
int vpos = vysnc_chain_counter_to_vpos(INT_TRIGGER_COUNT_1);
state->m_interrupt_assert_timer->adjust(machine.primary_screen->time_until_pos(vpos));
}
static MACHINE_START( enigma2 )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
create_interrupt_timers(machine);
state->m_maincpu = machine.device("maincpu");
state->m_audiocpu = machine.device("audiocpu");
state->save_item(NAME(state->m_blink_count));
state->save_item(NAME(state->m_sound_latch));
state->save_item(NAME(state->m_last_sound_data));
state->save_item(NAME(state->m_protection_data));
state->save_item(NAME(state->m_flip_screen));
}
static MACHINE_RESET( enigma2 )
{
enigma2_state *state = machine.driver_data<enigma2_state>();
cputag_set_input_line(machine, "audiocpu", INPUT_LINE_NMI, CLEAR_LINE);
state->m_last_sound_data = 0;
state->m_flip_screen = 0;
state->m_sound_latch = 0;
state->m_blink_count = 0;
start_interrupt_timers(machine);
}
/*************************************
*
* Video system
*
*************************************/
static void get_pens(pen_t *pens)
{
offs_t i;
for (i = 0; i < NUM_PENS; i++)
{
/* this color gun arrengement is supported by the flyer screenshot */
pens[i] = MAKE_RGB(pal1bit(i >> 2), pal1bit(i >> 1), pal1bit(i >> 0));
}
}
static SCREEN_UPDATE( enigma2 )
{
enigma2_state *state = screen->machine().driver_data<enigma2_state>();
pen_t pens[NUM_PENS];
const rectangle &visarea = screen->visible_area();
UINT8 *prom = screen->machine().region("proms")->base();
UINT8 *color_map_base = state->m_flip_screen ? &prom[0x0400] : &prom[0x0000];
UINT8 *star_map_base = (state->m_blink_count & 0x08) ? &prom[0x0c00] : &prom[0x0800];
UINT8 x = 0;
UINT16 bitmap_y = visarea.min_y;
UINT8 y = (UINT8)vpos_to_vysnc_chain_counter(bitmap_y);
UINT8 video_data = 0;
UINT8 fore_color = 0;
UINT8 star_color = 0;
get_pens(pens);
while (1)
{
UINT8 bit;
UINT8 color;
/* read the video RAM */
if ((x & 0x07) == 0x00)
{
offs_t color_map_address = (y >> 3 << 5) | (x >> 3);
/* the schematics shows it like this, but it doesn't work as this would
produce no stars, due to the contents of the PROM -- maybe there is
a star disabled bit somewhere that's connected here instead of flip_screen_get(screen->machine()) */
/* star_map_address = (y >> 4 << 6) | (engima2_flip_screen_get() << 5) | (x >> 3); */
offs_t star_map_address = (y >> 4 << 6) | 0x20 | (x >> 3);
offs_t videoram_address = (y << 5) | (x >> 3);
/* when the screen is flipped, all the video address bits are inverted,
and the adder at 16A is activated */
if (state->m_flip_screen) videoram_address = (~videoram_address + 0x0400) & 0x1fff;
video_data = state->m_videoram[videoram_address];
fore_color = color_map_base[color_map_address] & 0x07;
star_color = star_map_base[star_map_address] & 0x07;
}
/* plot the current pixel */
if (state->m_flip_screen)
{
bit = video_data & 0x80;
video_data = video_data << 1;
}
else
{
bit = video_data & 0x01;
video_data = video_data >> 1;
}
if (bit)
color = fore_color;
else
/* stars only appear at certain positions */
color = ((x & y & 0x0f) == 0x0f) ? star_color : 0;
*BITMAP_ADDR32(bitmap, bitmap_y, x) = pens[color];
/* next pixel */
x = x + 1;
/* end of line? */
if (x == 0)
{
/* end of screen? */
if (bitmap_y == visarea.max_y)
break;
/* next row */
y = y + 1;
bitmap_y = bitmap_y + 1;
}
}
state->m_blink_count++;
return 0;
}
static SCREEN_UPDATE( enigma2a )
{
enigma2_state *state = screen->machine().driver_data<enigma2_state>();
UINT8 x = 0;
const rectangle &visarea = screen->visible_area();
UINT16 bitmap_y = visarea.min_y;
UINT8 y = (UINT8)vpos_to_vysnc_chain_counter(bitmap_y);
UINT8 video_data = 0;
while (1)
{
UINT8 bit;
pen_t pen;
/* read the video RAM */
if ((x & 0x07) == 0x00)
{
offs_t videoram_address = (y << 5) | (x >> 3);
/* when the screen is flipped, all the video address bits are inverted,
and the adder at 16A is activated */
if (state->m_flip_screen) videoram_address = (~videoram_address + 0x0400) & 0x1fff;
video_data = state->m_videoram[videoram_address];
}
/* plot the current pixel */
if (state->m_flip_screen)
{
bit = video_data & 0x80;
video_data = video_data << 1;
}
else
{
bit = video_data & 0x01;
video_data = video_data >> 1;
}
pen = bit ? RGB_WHITE : RGB_BLACK;
*BITMAP_ADDR32(bitmap, bitmap_y, x) = pen;
/* next pixel */
x = x + 1;
/* end of line? */
if (x == 0)
{
/* end of screen? */
if (bitmap_y == visarea.max_y)
break;
/* next row */
y = y + 1;
bitmap_y = bitmap_y + 1;
}
}
return 0;
}
static READ8_HANDLER( dip_switch_r )
{
enigma2_state *state = space->machine().driver_data<enigma2_state>();
UINT8 ret = 0x00;
if (LOG_PROT) logerror("DIP SW Read: %x at %x (prot data %x)\n", offset, cpu_get_pc(&space->device()), state->m_protection_data);
switch (offset)
{
case 0x01:
/* For the DIP switches to be read, protection_data must be
0xff on reset. The AY8910 reset ensures this. */
if (state->m_protection_data != 0xff)
ret = state->m_protection_data ^ 0x88;
else
ret = input_port_read(space->machine(), "DSW");
break;
case 0x02:
if (cpu_get_pc(&space->device()) == 0x07e5)
ret = 0xaa;
else
ret = 0xf4;
break;
case 0x35: ret = 0x38; break;
case 0x51: ret = 0xaa; break;
case 0x79: ret = 0x38; break;
}
return ret;
}
static WRITE8_HANDLER( sound_data_w )
{
enigma2_state *state = space->machine().driver_data<enigma2_state>();
/* clock sound latch shift register on rising edge of D2 */
if (!(data & 0x04) && (state->m_last_sound_data & 0x04))
state->m_sound_latch = (state->m_sound_latch << 1) | (~data & 0x01);
device_set_input_line(state->m_audiocpu, INPUT_LINE_NMI, (data & 0x02) ? ASSERT_LINE : CLEAR_LINE);
state->m_last_sound_data = data;
}
static READ8_DEVICE_HANDLER( sound_latch_r )
{
enigma2_state *state = device->machine().driver_data<enigma2_state>();
return BITSWAP8(state->m_sound_latch,0,1,2,3,4,5,6,7);
}
static WRITE8_DEVICE_HANDLER( protection_data_w )
{
enigma2_state *state = device->machine().driver_data<enigma2_state>();
if (LOG_PROT) logerror("%s: Protection Data Write: %x\n", device->machine().describe_context(), data);
state->m_protection_data = data;
}
static WRITE8_HANDLER( enigma2_flip_screen_w )
{
enigma2_state *state = space->machine().driver_data<enigma2_state>();
state->m_flip_screen = ((data >> 5) & 0x01) && ((input_port_read(space->machine(), "DSW") & 0x20) == 0x20);
}
static CUSTOM_INPUT( p1_controls_r )
{
return input_port_read(field.machine(), "P1CONTROLS");
}
static CUSTOM_INPUT( p2_controls_r )
{
enigma2_state *state = field.machine().driver_data<enigma2_state>();
if (state->m_flip_screen)
return input_port_read(field.machine(), "P2CONTROLS");
else
return input_port_read(field.machine(), "P1CONTROLS");
}
static const ay8910_interface ay8910_config =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_HANDLER(sound_latch_r),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_HANDLER(protection_data_w)
};
static ADDRESS_MAP_START( engima2_main_cpu_map, AS_PROGRAM, 8 )
ADDRESS_MAP_GLOBAL_MASK(0x7fff)
AM_RANGE(0x0000, 0x1fff) AM_ROM AM_WRITENOP
AM_RANGE(0x2000, 0x3fff) AM_MIRROR(0x4000) AM_RAM AM_BASE_MEMBER(enigma2_state, m_videoram)
AM_RANGE(0x4000, 0x4fff) AM_ROM AM_WRITENOP
AM_RANGE(0x5000, 0x57ff) AM_READ(dip_switch_r) AM_WRITENOP
AM_RANGE(0x5800, 0x5800) AM_MIRROR(0x07f8) AM_NOP
AM_RANGE(0x5801, 0x5801) AM_MIRROR(0x07f8) AM_READ_PORT("IN0") AM_WRITENOP
AM_RANGE(0x5802, 0x5802) AM_MIRROR(0x07f8) AM_READ_PORT("IN1") AM_WRITENOP
AM_RANGE(0x5803, 0x5803) AM_MIRROR(0x07f8) AM_READNOP AM_WRITE(sound_data_w)
AM_RANGE(0x5804, 0x5804) AM_MIRROR(0x07f8) AM_NOP
AM_RANGE(0x5805, 0x5805) AM_MIRROR(0x07f8) AM_READNOP AM_WRITE(enigma2_flip_screen_w)
AM_RANGE(0x5806, 0x5807) AM_MIRROR(0x07f8) AM_NOP
ADDRESS_MAP_END
static ADDRESS_MAP_START( engima2a_main_cpu_map, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_ROM AM_WRITENOP
AM_RANGE(0x2000, 0x3fff) AM_MIRROR(0x4000) AM_RAM AM_BASE_MEMBER(enigma2_state, m_videoram)
AM_RANGE(0x4000, 0x4fff) AM_ROM AM_WRITENOP
AM_RANGE(0x5000, 0x57ff) AM_READ(dip_switch_r) AM_WRITENOP
AM_RANGE(0x5800, 0x5fff) AM_NOP
ADDRESS_MAP_END
static ADDRESS_MAP_START( engima2a_main_cpu_io_map, AS_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0x7)
AM_RANGE(0x00, 0x00) AM_NOP
AM_RANGE(0x01, 0x01) AM_READ_PORT("IN0") AM_WRITENOP
AM_RANGE(0x02, 0x02) AM_READ_PORT("IN1") AM_WRITENOP
AM_RANGE(0x03, 0x03) AM_READNOP AM_WRITE(sound_data_w)
AM_RANGE(0x04, 0x04) AM_NOP
AM_RANGE(0x05, 0x05) AM_READNOP AM_WRITE(enigma2_flip_screen_w)
AM_RANGE(0x06, 0x07) AM_NOP
ADDRESS_MAP_END
static ADDRESS_MAP_START( engima2_audio_cpu_map, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0x0fff) AM_MIRROR(0x1000) AM_ROM AM_WRITENOP
AM_RANGE(0x2000, 0x7fff) AM_NOP
AM_RANGE(0x8000, 0x83ff) AM_MIRROR(0x1c00) AM_RAM
AM_RANGE(0xa000, 0xa001) AM_MIRROR(0x1ffc) AM_DEVWRITE("aysnd", ay8910_address_data_w)
AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_DEVREAD("aysnd", ay8910_r)
AM_RANGE(0xa003, 0xa003) AM_MIRROR(0x1ffc) AM_NOP
AM_RANGE(0xc000, 0xffff) AM_NOP
ADDRESS_MAP_END
static INPUT_PORTS_START( enigma2 )
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x78, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(p1_controls_r, NULL)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x78, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(p2_controls_r, NULL)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x1c, 0x00, "Skill level" )
PORT_DIPSETTING( 0x00, "1" )
PORT_DIPSETTING( 0x04, "2" )
PORT_DIPSETTING( 0x0c, "3" )
PORT_DIPSETTING( 0x08, "4" )
PORT_DIPSETTING( 0x10, "5" )
PORT_DIPSETTING( 0x14, "6" )
PORT_DIPNAME( 0x20, 0x00, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x20, DEF_STR( Cocktail ) )
PORT_DIPNAME( 0x40, 0x40, "Number of invaders" )
PORT_DIPSETTING( 0x40, "16" )
PORT_DIPSETTING( 0x00, "32" )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_START("P1CONTROLS")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("P2CONTROLS")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
INPUT_PORTS_END
static INPUT_PORTS_START( enigma2a )
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x70, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(p1_controls_r, NULL)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x70, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(p2_controls_r, NULL)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x1c, 0x00, "Skill level" )
PORT_DIPSETTING( 0x00, "1" )
PORT_DIPSETTING( 0x04, "2" )
PORT_DIPSETTING( 0x0c, "3" )
PORT_DIPSETTING( 0x08, "4" )
PORT_DIPSETTING( 0x10, "5" )
PORT_DIPSETTING( 0x14, "6" )
PORT_DIPNAME( 0x20, 0x00, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x20, DEF_STR( Cocktail ) )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_START("P1CONTROLS")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
PORT_BIT( 0xf8, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("P2CONTROLS")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
PORT_BIT( 0xf8, IP_ACTIVE_HIGH, IPT_UNUSED )
INPUT_PORTS_END
static MACHINE_CONFIG_START( enigma2, enigma2_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, CPU_CLOCK)
MCFG_CPU_PROGRAM_MAP(engima2_main_cpu_map)
MCFG_CPU_ADD("audiocpu", Z80, 2500000)
MCFG_CPU_PROGRAM_MAP(engima2_audio_cpu_map)
MCFG_CPU_PERIODIC_INT(irq0_line_hold,8*52)
MCFG_MACHINE_START(enigma2)
MCFG_MACHINE_RESET(enigma2)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_RGB32)
MCFG_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART)
MCFG_SCREEN_UPDATE(enigma2)
/* audio hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd", AY8910, AY8910_CLOCK)
MCFG_SOUND_CONFIG(ay8910_config)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
static MACHINE_CONFIG_START( enigma2a, enigma2_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8080, CPU_CLOCK)
MCFG_CPU_PROGRAM_MAP(engima2a_main_cpu_map)
MCFG_CPU_IO_MAP(engima2a_main_cpu_io_map)
MCFG_CPU_ADD("audiocpu", Z80, 2500000)
MCFG_CPU_PROGRAM_MAP(engima2_audio_cpu_map)
MCFG_CPU_PERIODIC_INT(irq0_line_hold,8*52)
MCFG_MACHINE_START(enigma2)
MCFG_MACHINE_RESET(enigma2)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_RGB32)
MCFG_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART)
MCFG_SCREEN_UPDATE(enigma2a)
/* audio hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd", AY8910, AY8910_CLOCK)
MCFG_SOUND_CONFIG(ay8910_config)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
ROM_START( enigma2 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "1.5d", 0x0000, 0x0800, CRC(499749de) SHA1(401928ff41d3b4cbb68e6ad3bf3be4a10ae1781f) )
ROM_LOAD( "2.7d", 0x0800, 0x0800, CRC(173c1329) SHA1(3f1ad46d0e58ab236e4ff2b385d09fbf113627da) )
ROM_LOAD( "3.8d", 0x1000, 0x0800, CRC(c7d3e6b1) SHA1(43f7c3a02b46747998260d5469248f21714fe12b) )
ROM_LOAD( "4.10d", 0x1800, 0x0800, CRC(c6a7428c) SHA1(3503f09856655c5973fb89f60d1045fe41012aa9) )
ROM_LOAD( "5.11d", 0x4000, 0x0800, CRC(098ac15b) SHA1(cce28a2540a9eabb473391fff92895129ae41751) )
ROM_LOAD( "6.13d", 0x4800, 0x0800, CRC(240a9d4b) SHA1(ca1c69fafec0471141ce1254ddfaef54fecfcbf0) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "enigma2.s", 0x0000, 0x1000, CRC(68fd8c54) SHA1(69996d5dfd996f0aacb26e397bef314204a2a88a) )
ROM_REGION( 0x1000, "proms", 0 ) /* color map/star map */
ROM_LOAD( "7.11f", 0x0000, 0x0800, CRC(409b5aad) SHA1(1b774a70f725637458ed68df9ed42476291b0e43) )
ROM_LOAD( "8.13f", 0x0800, 0x0800, CRC(e9cb116d) SHA1(41da4f46c5614ec3345c233467ebad022c6b0bf5) )
ROM_END
ROM_START( enigma2a )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "36_en1.bin", 0x0000, 0x0800, CRC(15f44806) SHA1(4a2f7bc91d4edf7a069e0865d964371c97af0a0a) )
ROM_LOAD( "35_en2.bin", 0x0800, 0x0800, CRC(e841072f) SHA1(6ab02fd9fdeac5ab887cd25eee3d6b70ab01f849) )
ROM_LOAD( "34_en3.bin", 0x1000, 0x0800, CRC(43d06cf4) SHA1(495af05d54c0325efb67347f691e64d194645d85) )
ROM_LOAD( "33_en4.bin", 0x1800, 0x0800, CRC(8879a430) SHA1(c97f44bef3741eef74e137d2459e79f1b3a90457) )
ROM_LOAD( "5.11d", 0x4000, 0x0800, CRC(098ac15b) SHA1(cce28a2540a9eabb473391fff92895129ae41751) )
ROM_LOAD( "6.13d", 0x4800, 0x0800, CRC(240a9d4b) SHA1(ca1c69fafec0471141ce1254ddfaef54fecfcbf0) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sound.bin", 0x0000, 0x0800, BAD_DUMP CRC(5f092d3c) SHA1(17c70f6af1b5560a45e6b1bdb330a98b27570fe9) )
ROM_END
ROM_START( enigma2b )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "ic36.bin", 0x0000, 0x0800, CRC(71dc9ecc) SHA1(a41260259cf0a36b01b5e8ad35cf968e920d22d9) )
ROM_LOAD( "ic35.bin", 0x0800, 0x0800, CRC(e841072f) SHA1(6ab02fd9fdeac5ab887cd25eee3d6b70ab01f849) )
ROM_LOAD( "ic34.bin", 0x1000, 0x0800, CRC(1384073d) SHA1(7a3a910c0431e680cc952a10a040b02f3df0532a) )
ROM_LOAD( "ic33.bin", 0x1800, 0x0800, CRC(ac6c2410) SHA1(d35565a5ffe795d0c36970bd9c2f948bf79e0ed8) )
ROM_LOAD( "ic32.bin", 0x4000, 0x0800, CRC(098ac15b) SHA1(cce28a2540a9eabb473391fff92895129ae41751) )
ROM_LOAD( "ic42.bin", 0x4800, 0x0800, CRC(240a9d4b) SHA1(ca1c69fafec0471141ce1254ddfaef54fecfcbf0) )
/* this rom was completely broken on this pcb.. */
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "sound.bin", 0x0000, 0x0800, BAD_DUMP CRC(5f092d3c) SHA1(17c70f6af1b5560a45e6b1bdb330a98b27570fe9) )
ROM_END
static DRIVER_INIT(enigma2)
{
offs_t i;
UINT8 *rom = machine.region("audiocpu")->base();
for(i = 0; i < 0x2000; i++)
{
rom[i] = BITSWAP8(rom[i],4,5,6,0,7,1,3,2);
}
}
GAME( 1981, enigma2, 0, enigma2, enigma2, enigma2, ROT270, "Game Plan (Zilec Electronics license)", "Enigma II", GAME_SUPPORTS_SAVE )
GAME( 1984, enigma2a, enigma2, enigma2a, enigma2a, enigma2, ROT270, "Zilec Electronics", "Enigma II (Space Invaders hardware)", GAME_SUPPORTS_SAVE )
GAME( 1981, enigma2b, enigma2, enigma2a, enigma2a, enigma2, ROT270, "Zilec Electronics", "Phantoms II (Space Invaders hardware)", GAME_SUPPORTS_SAVE )