diff options
Diffstat (limited to 'src/mame/drivers/enigma2.c')
-rw-r--r-- | src/mame/drivers/enigma2.c | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/src/mame/drivers/enigma2.c b/src/mame/drivers/enigma2.c new file mode 100644 index 00000000000..f4d17dff190 --- /dev/null +++ b/src/mame/drivers/enigma2.c @@ -0,0 +1,671 @@ +/******************************************************************** + +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 ) |