/******************************************************************** 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(); device_set_input_line(state->m_maincpu, 0, CLEAR_LINE); } static TIMER_CALLBACK( interrupt_assert_callback ) { enigma2_state *state = machine.driver_data(); 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(); 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(); 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(); 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(); 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(); 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(); 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(); 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(); /* 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(); 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(); 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(); 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(); 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 )