/******************************************************************** Enigma 2 (c) Zilec Electronics driver by Pierpaolo Prazzoli and Tomasz Slanina Two sets: Enigma2 (1981) 2xZ80 + AY8910 Enigma2a (1984?) Conversion applied to a Taito Space Invaders Part II board set. Bootleg ? TODO: - enigma2 - Star blinking frequency - enigma2a - bad sound ROM *********************************************************************/ #include "driver.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) static UINT8 *enigma2_ram; static UINT8 sound_latch; static UINT8 last_sound_data; static UINT8 protection_data; static UINT8 engima2_flip_screen; /************************************* * * Interrupt generation * *************************************/ static emu_timer *interrupt_clear_timer; static emu_timer *interrupt_assert_timer; 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 ) { cpunum_set_input_line(0, 0, CLEAR_LINE); } static TIMER_CALLBACK( interrupt_assert_callback ) { UINT16 next_counter; int next_vpos; /* compute vector and set the interrupt line */ int vpos = video_screen_get_vpos(0); UINT16 counter = vpos_to_vysnc_chain_counter(vpos); UINT8 vector = 0xc7 | ((counter & 0x80) >> 3) | ((~counter & 0x80) >> 4); cpunum_set_input_line_and_vector(0, 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); timer_adjust(interrupt_assert_timer, video_screen_get_time_until_pos(0, next_vpos, 0), 0, attotime_zero); timer_adjust(interrupt_clear_timer, video_screen_get_time_until_pos(0, vpos + 1, 0), 0, attotime_zero); } static void create_interrupt_timers(void) { interrupt_clear_timer = timer_alloc(interrupt_clear_callback); interrupt_assert_timer = timer_alloc(interrupt_assert_callback); } static void start_interrupt_timers(void) { int vpos = vysnc_chain_counter_to_vpos(INT_TRIGGER_COUNT_1); timer_adjust(interrupt_assert_timer, video_screen_get_time_until_pos(0, vpos, 0), 0, attotime_zero); } static MACHINE_START( enigma2 ) { create_interrupt_timers(); } static MACHINE_RESET( enigma2 ) { last_sound_data = 0; cpunum_set_input_line(1, INPUT_LINE_NMI, CLEAR_LINE); engima2_flip_screen = 0; start_interrupt_timers(); } /************************************* * * 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 VIDEO_UPDATE( enigma2 ) { static int blink_count; pen_t pens[NUM_PENS]; UINT8 *color_map_base = engima2_flip_screen ? &memory_region(REGION_PROMS)[0x0400] : memory_region(REGION_PROMS); UINT8 *star_map_base = (blink_count & 0x08) ? &memory_region(REGION_PROMS)[0x0c00] : &memory_region(REGION_PROMS)[0x0800]; UINT8 x = 0; UINT16 bitmap_y = machine->screen[screen].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 */ /* star_map_address = (y >> 4 << 6) | (engima2_flip_screen << 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 (engima2_flip_screen) videoram_address = (~videoram_address + 0x0400) & 0x1fff; video_data = enigma2_ram[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 (engima2_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 == machine->screen[screen].visarea.max_y) { break; } /* next row */ y = y + 1; bitmap_y = bitmap_y + 1; } } blink_count++; return 0; } static VIDEO_UPDATE( enigma2a ) { UINT8 x = 0; UINT16 bitmap_y = machine->screen[screen].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 (engima2_flip_screen) videoram_address = (~videoram_address + 0x0400) & 0x1fff; video_data = enigma2_ram[videoram_address]; } /* plot the current pixel */ if (engima2_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 == machine->screen[screen].visarea.max_y) { break; } /* next row */ y = y + 1; bitmap_y = bitmap_y + 1; } } return 0; } static READ8_HANDLER( dip_switch_r ) { UINT8 ret = 0x00; if (LOG_PROT) logerror("DIP SW Read: %x at %x (prot data %x)\n", offset, activecpu_get_pc(), protection_data); switch (offset) { case 0x01: if (protection_data != 0xff) ret = protection_data ^ 0x88; else ret = readinputport(2); break; case 0x02: if (activecpu_get_pc() == 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 ) { /* clock sound latch shift register on rising edge of D2 */ if (!(data & 0x04) && (last_sound_data & 0x04)) { sound_latch = (sound_latch << 1) | (~data & 0x01); } cpunum_set_input_line(1, INPUT_LINE_NMI, (data & 0x02) ? ASSERT_LINE : CLEAR_LINE); last_sound_data = data; } static READ8_HANDLER( sound_latch_r ) { return BITSWAP8(sound_latch,0,1,2,3,4,5,6,7); } static WRITE8_HANDLER( protection_data_w ) { if (LOG_PROT) logerror("Protection Data Write: %x at %x\n", data, safe_activecpu_get_pc()); protection_data = data; } static WRITE8_HANDLER( enigma2_flip_screen_w ) { engima2_flip_screen = ((data >> 5) & 0x01) && ((readinputport(2) & 0x20) == 0x20); } static UINT32 p1_controls_r(void *param) { return readinputportbytag("P1CONTROLS"); } static UINT32 p2_controls_r(void *param) { if (engima2_flip_screen) return readinputportbytag("P2CONTROLS"); else return readinputportbytag("P1CONTROLS"); } static struct AY8910interface ay8910_interface = { sound_latch_r, 0, 0, protection_data_w }; static ADDRESS_MAP_START( engima2_main_cpu_map, ADDRESS_SPACE_PROGRAM, 8 ) ADDRESS_MAP_FLAGS( AMEF_ABITS(15) ) AM_RANGE(0x0000, 0x1fff) AM_ROM AM_WRITENOP AM_RANGE(0x2000, 0x3fff) AM_MIRROR(0x4000) AM_RAM AM_BASE(&enigma2_ram) AM_RANGE(0x4000, 0x4fff) AM_ROM AM_WRITENOP AM_RANGE(0x5000, 0x57ff) AM_READWRITE(dip_switch_r, MWA8_NOP) AM_RANGE(0x5800, 0x5800) AM_MIRROR(0x07f8) AM_NOP AM_RANGE(0x5801, 0x5801) AM_MIRROR(0x07f8) AM_READWRITE(input_port_0_r, MWA8_NOP) AM_RANGE(0x5802, 0x5802) AM_MIRROR(0x07f8) AM_READWRITE(input_port_1_r, MWA8_NOP) AM_RANGE(0x5803, 0x5803) AM_MIRROR(0x07f8) AM_READWRITE(MRA8_NOP, sound_data_w) AM_RANGE(0x5804, 0x5804) AM_MIRROR(0x07f8) AM_NOP AM_RANGE(0x5805, 0x5805) AM_MIRROR(0x07f8) AM_READWRITE(MRA8_NOP, enigma2_flip_screen_w) AM_RANGE(0x5806, 0x5807) AM_MIRROR(0x07f8) AM_NOP ADDRESS_MAP_END static ADDRESS_MAP_START( engima2a_main_cpu_map, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x1fff) AM_ROM AM_WRITENOP AM_RANGE(0x2000, 0x3fff) AM_MIRROR(0x4000) AM_RAM AM_BASE(&enigma2_ram) AM_RANGE(0x4000, 0x4fff) AM_ROM AM_WRITENOP AM_RANGE(0x5000, 0x57ff) AM_READWRITE(dip_switch_r, MWA8_NOP) AM_RANGE(0x5800, 0x5fff) AM_NOP ADDRESS_MAP_END static ADDRESS_MAP_START( engima2a_main_cpu_io_map, ADDRESS_SPACE_IO, 8 ) ADDRESS_MAP_FLAGS( AMEF_ABITS(3) ) AM_RANGE(0x00, 0x00) AM_NOP AM_RANGE(0x01, 0x01) AM_READWRITE(input_port_0_r, MWA8_NOP) AM_RANGE(0x02, 0x02) AM_READWRITE(input_port_1_r, MWA8_NOP) AM_RANGE(0x03, 0x03) AM_READWRITE(MRA8_NOP, sound_data_w) AM_RANGE(0x04, 0x04) AM_NOP AM_RANGE(0x05, 0x05) AM_READWRITE(MRA8_NOP, enigma2_flip_screen_w) AM_RANGE(0x06, 0x07) AM_NOP ADDRESS_MAP_END static ADDRESS_MAP_START( engima2_audio_cpu_map, ADDRESS_SPACE_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, 0xa000) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_control_port_0_w) AM_RANGE(0xa001, 0xa001) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_write_port_0_w) AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_READ(AY8910_read_port_0_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 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, 0) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START 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, 0) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START 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_TAG("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_TAG("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 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, 0) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START 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, 0) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START 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_TAG("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_TAG("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_DRIVER_START( enigma2 ) /* basic machine hardware */ MDRV_CPU_ADD_TAG("main", Z80, CPU_CLOCK) MDRV_CPU_PROGRAM_MAP(engima2_main_cpu_map,0) MDRV_CPU_ADD(Z80, 2500000) MDRV_CPU_VBLANK_INT(irq0_line_hold,8) MDRV_CPU_PROGRAM_MAP(engima2_audio_cpu_map,0) MDRV_MACHINE_START(enigma2) MDRV_MACHINE_RESET(enigma2) /* video hardware */ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) MDRV_VIDEO_UPDATE(enigma2) MDRV_SCREEN_ADD("main", 0) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_RGB32) MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART) /* audio hardware */ MDRV_SPEAKER_STANDARD_MONO("mono") MDRV_SOUND_ADD(AY8910, AY8910_CLOCK) MDRV_SOUND_CONFIG(ay8910_interface) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) MACHINE_DRIVER_END static MACHINE_DRIVER_START( enigma2a ) /* basic machine hardware */ MDRV_CPU_ADD_TAG("main", 8080, CPU_CLOCK) MDRV_CPU_PROGRAM_MAP(engima2a_main_cpu_map,0) MDRV_CPU_IO_MAP(engima2a_main_cpu_io_map,0) MDRV_CPU_ADD(Z80, 2500000) MDRV_CPU_VBLANK_INT(irq0_line_hold,8) MDRV_CPU_PROGRAM_MAP(engima2_audio_cpu_map,0) MDRV_MACHINE_START(enigma2) MDRV_MACHINE_RESET(enigma2) /* video hardware */ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) MDRV_VIDEO_UPDATE(enigma2a) MDRV_SCREEN_ADD("main", 0) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_RGB32) MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART) /* audio hardware */ MDRV_SPEAKER_STANDARD_MONO("mono") MDRV_SOUND_ADD(AY8910, AY8910_CLOCK) MDRV_SOUND_CONFIG(ay8910_interface) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) MACHINE_DRIVER_END ROM_START( enigma2 ) ROM_REGION( 0x10000, REGION_CPU1, 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, REGION_CPU2, 0 ) ROM_LOAD( "enigma2.s", 0x0000, 0x1000, CRC(68fd8c54) SHA1(69996d5dfd996f0aacb26e397bef314204a2a88a) ) ROM_REGION( 0x1000, REGION_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, REGION_CPU1, 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, REGION_CPU2, 0 ) ROM_LOAD( "sound.bin", 0x0000, 0x0800, BAD_DUMP CRC(5f092d3c) SHA1(17c70f6af1b5560a45e6b1bdb330a98b27570fe9) ) ROM_END static DRIVER_INIT(enigma2) { offs_t i; for(i = 0; i < 0x2000; i++) { memory_region(REGION_CPU2)[i] = BITSWAP8(memory_region(REGION_CPU2)[i],4,5,6,0,7,1,3,2); } } GAME( 1981, enigma2, 0, enigma2, enigma2, enigma2, ROT270, "GamePlan (Zilec Electronics license)", "Enigma II", 0 ) GAME( 1984, enigma2a, enigma2, enigma2a, enigma2a, enigma2, ROT270, "Zilec Electronics", "Enigma II (Space Invaders hardware)", 0 )