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-rw-r--r--src/mame/drivers/destroyr.cpp564
1 files changed, 564 insertions, 0 deletions
diff --git a/src/mame/drivers/destroyr.cpp b/src/mame/drivers/destroyr.cpp
new file mode 100644
index 00000000000..9501892bbc1
--- /dev/null
+++ b/src/mame/drivers/destroyr.cpp
@@ -0,0 +1,564 @@
+// license:???
+// copyright-holders:Stefan Jokisch
+/***************************************************************************
+
+Atari Destroyer Driver
+
+TODO:
+- discrete sound
+- accurate implementation of scanline counter as documented in schematics,
+ generate irqs from there, and refresh rate 15750/262 (~60.1) instead of 60
+- missing language roms means DIP switches related to these do not function
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/m6800/m6800.h"
+
+#include "destroyr.lh"
+
+
+class destroyr_state : public driver_device
+{
+public:
+ enum
+ {
+ TIMER_DESTROYR_DIAL,
+ TIMER_DESTROYR_FRAME
+ };
+
+ destroyr_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_gfxdecode(*this, "gfxdecode"),
+ m_screen(*this, "screen"),
+ m_palette(*this, "palette"),
+ m_alpha_num_ram(*this, "alpha_nuram"),
+ m_major_obj_ram(*this, "major_obj_ram"),
+ m_minor_obj_ram(*this, "minor_obj_ram") { }
+
+ /* devices */
+ required_device<cpu_device> m_maincpu;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<screen_device> m_screen;
+ required_device<palette_device> m_palette;
+
+ /* memory pointers */
+ required_shared_ptr<UINT8> m_alpha_num_ram;
+ required_shared_ptr<UINT8> m_major_obj_ram;
+ required_shared_ptr<UINT8> m_minor_obj_ram;
+
+ /* video-related */
+ int m_cursor;
+ int m_wavemod;
+
+ /* misc */
+ int m_potmask[2];
+ int m_potsense[2];
+ int m_attract;
+ int m_motor_speed;
+ int m_noise;
+ emu_timer *m_dial_timer;
+ emu_timer *m_frame_timer;
+
+ DECLARE_WRITE8_MEMBER(misc_w);
+ DECLARE_WRITE8_MEMBER(cursor_load_w);
+ DECLARE_WRITE8_MEMBER(interrupt_ack_w);
+ DECLARE_WRITE8_MEMBER(output_w);
+ DECLARE_READ8_MEMBER(input_r);
+ DECLARE_READ8_MEMBER(scanline_r);
+
+ virtual void machine_start();
+ virtual void machine_reset();
+ DECLARE_PALETTE_INIT(destroyr);
+
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
+ TIMER_CALLBACK_MEMBER(dial_callback);
+ TIMER_CALLBACK_MEMBER(frame_callback);
+
+protected:
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+};
+
+
+UINT32 destroyr_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ int i, j;
+
+ bitmap.fill(0, cliprect);
+
+ /* draw major objects */
+ for (i = 0; i < 16; i++)
+ {
+ int attr = m_major_obj_ram[2 * i + 0] ^ 0xff;
+ int horz = m_major_obj_ram[2 * i + 1];
+
+ int num = attr & 3;
+ int scan = attr & 4;
+ int flipx = attr & 8;
+
+ if (scan == 0)
+ {
+ if (horz >= 192)
+ horz -= 256;
+ }
+ else
+ {
+ if (horz < 192)
+ continue;
+ }
+
+ m_gfxdecode->gfx(2)->transpen(bitmap,cliprect, num, 0, flipx, 0, horz, 16 * i, 0);
+ }
+
+ /* draw alpha numerics */
+ for (i = 0; i < 8; i++)
+ {
+ for (j = 0; j < 32; j++)
+ {
+ int num = m_alpha_num_ram[32 * i + j];
+
+ m_gfxdecode->gfx(0)->transpen(bitmap,cliprect, num, 0, 0, 0, 8 * j, 8 * i, 0);
+ }
+ }
+
+ /* draw minor objects */
+ for (i = 0; i < 2; i++)
+ {
+ int num = i << 4 | (m_minor_obj_ram[i + 0] & 0xf);
+ int horz = 256 - m_minor_obj_ram[i + 2];
+ int vert = 256 - m_minor_obj_ram[i + 4];
+
+ m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, num, 0, 0, 0, horz, vert, 0);
+ }
+
+ /* draw waves */
+ for (i = 0; i < 4; i++)
+ {
+ m_gfxdecode->gfx(3)->transpen(bitmap,cliprect, m_wavemod ? 1 : 0, 0, 0, 0, 64 * i, 0x4e, 0);
+ }
+
+ /* draw cursor */
+ for (i = 0; i < 256; i++)
+ {
+ if (i & 4)
+ bitmap.pix16(m_cursor ^ 0xff, i) = 7;
+ }
+ return 0;
+}
+
+
+void destroyr_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
+{
+ switch (id)
+ {
+ case TIMER_DESTROYR_DIAL:
+ dial_callback(ptr, param);
+ break;
+ case TIMER_DESTROYR_FRAME:
+ frame_callback(ptr, param);
+ break;
+ default:
+ assert_always(FALSE, "Unknown id in destroyr_state::device_timer");
+ }
+}
+
+
+TIMER_CALLBACK_MEMBER(destroyr_state::dial_callback)
+{
+ int dial = param;
+
+ /* Analog inputs come from the player's depth control potentiometer.
+ The voltage is compared to a voltage ramp provided by a discrete
+ analog circuit that conditions the VBLANK signal. When the ramp
+ voltage exceeds the input voltage an NMI signal is generated. The
+ computer then reads the VSYNC data functions to tell where the
+ cursor should be located. */
+
+ m_potsense[dial] = 1;
+
+ if (m_potmask[dial])
+ {
+ m_maincpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
+ }
+}
+
+
+TIMER_CALLBACK_MEMBER(destroyr_state::frame_callback)
+{
+ m_potsense[0] = 0;
+ m_potsense[1] = 0;
+
+ /* PCB supports two dials, but cab has only got one */
+ m_dial_timer->adjust(m_screen->time_until_pos(ioport("PADDLE")->read()));
+ m_frame_timer->adjust(m_screen->time_until_pos(0));
+}
+
+
+void destroyr_state::machine_reset()
+{
+ timer_set(m_screen->time_until_pos(0), TIMER_DESTROYR_FRAME);
+
+ m_cursor = 0;
+ m_wavemod = 0;
+ m_potmask[0] = 0;
+ m_potmask[1] = 0;
+ m_potsense[0] = 0;
+ m_potsense[1] = 0;
+ m_attract = 0;
+ m_motor_speed = 0;
+ m_noise = 0;
+}
+
+
+WRITE8_MEMBER(destroyr_state::misc_w)
+{
+ /* bits 0 to 2 connect to the sound circuits */
+ m_attract = data & 0x01;
+ m_noise = data & 0x02;
+ m_motor_speed = data & 0x04;
+ m_potmask[0] = data & 0x08;
+ m_wavemod = data & 0x10;
+ m_potmask[1] = data & 0x20;
+
+ coin_lockout_w(machine(), 0, !m_attract);
+ coin_lockout_w(machine(), 1, !m_attract);
+}
+
+
+WRITE8_MEMBER(destroyr_state::cursor_load_w)
+{
+ m_cursor = data;
+ watchdog_reset_w(space, offset, data);
+}
+
+
+WRITE8_MEMBER(destroyr_state::interrupt_ack_w)
+{
+ m_maincpu->set_input_line(0, CLEAR_LINE);
+}
+
+
+WRITE8_MEMBER(destroyr_state::output_w)
+{
+ if (offset & 8) misc_w(space, 8, data);
+
+ else switch (offset & 7)
+ {
+ case 0:
+ set_led_status(machine(), 0, data & 1);
+ break;
+ case 1:
+ set_led_status(machine(), 1, data & 1); /* no second LED present on cab */
+ break;
+ case 2:
+ /* bit 0 => songate */
+ break;
+ case 3:
+ /* bit 0 => launch */
+ break;
+ case 4:
+ /* bit 0 => explosion */
+ break;
+ case 5:
+ /* bit 0 => sonar */
+ break;
+ case 6:
+ /* bit 0 => high explosion */
+ break;
+ case 7:
+ /* bit 0 => low explosion */
+ break;
+ }
+}
+
+
+READ8_MEMBER(destroyr_state::input_r)
+{
+ if (offset & 1)
+ {
+ return ioport("IN1")->read();
+ }
+
+ else
+ {
+ UINT8 ret = ioport("IN0")->read();
+
+ if (m_potsense[0] && m_potmask[0])
+ ret |= 4;
+ if (m_potsense[1] && m_potmask[1])
+ ret |= 8;
+
+ return ret;
+ }
+}
+
+
+READ8_MEMBER(destroyr_state::scanline_r)
+{
+ return m_screen->vpos();
+}
+
+
+static ADDRESS_MAP_START( destroyr_map, AS_PROGRAM, 8, destroyr_state )
+ ADDRESS_MAP_GLOBAL_MASK(0x7fff)
+ AM_RANGE(0x0000, 0x00ff) AM_MIRROR(0xf00) AM_RAM
+ AM_RANGE(0x1000, 0x1fff) AM_READWRITE(input_r, output_w)
+ AM_RANGE(0x2000, 0x2fff) AM_READ_PORT("IN2")
+ AM_RANGE(0x3000, 0x30ff) AM_MIRROR(0xf00) AM_WRITEONLY AM_SHARE("alpha_nuram")
+ AM_RANGE(0x4000, 0x401f) AM_MIRROR(0xfe0) AM_WRITEONLY AM_SHARE("major_obj_ram")
+ AM_RANGE(0x5000, 0x5000) AM_MIRROR(0xff8) AM_WRITE(cursor_load_w)
+ AM_RANGE(0x5001, 0x5001) AM_MIRROR(0xff8) AM_WRITE(interrupt_ack_w)
+ AM_RANGE(0x5002, 0x5007) AM_MIRROR(0xff8) AM_WRITEONLY AM_SHARE("minor_obj_ram")
+ AM_RANGE(0x6000, 0x6fff) AM_READ(scanline_r)
+ AM_RANGE(0x7000, 0x7fff) AM_ROM
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( destroyr )
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) /* call 7400 */
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED ) /* potsense1 */
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED ) /* potsense2 */
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_DIPNAME( 0xc0, 0x80, "Extended Play" ) PORT_DIPLOCATION("SW2:8,7")
+ PORT_DIPSETTING( 0x40, "1500 points" )
+ PORT_DIPSETTING( 0x80, "2500 points" )
+ PORT_DIPSETTING( 0xc0, "3500 points" )
+ PORT_DIPSETTING( 0x00, "never" )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_TILT )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Speed Control") PORT_TOGGLE
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+ PORT_SERVICE( 0x08, IP_ACTIVE_LOW )
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
+
+ PORT_START("IN2")
+ PORT_DIPNAME( 0x03, 0x02, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW:4,3")
+ PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x0c, 0x08, "Play Time" ) PORT_DIPLOCATION("SW:2,1")
+ PORT_DIPSETTING( 0x00, "50 seconds" )
+ PORT_DIPSETTING( 0x04, "75 seconds" )
+ PORT_DIPSETTING( 0x08, "100 seconds" )
+ PORT_DIPSETTING( 0x0c, "125 seconds" )
+ PORT_DIPNAME( 0x30, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("SW2:5,6")
+ PORT_DIPSETTING( 0x30, DEF_STR( German ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( French ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Spanish ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( English ) )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("PADDLE")
+ PORT_BIT( 0xff, 0x00, IPT_PADDLE_V ) PORT_MINMAX(0,160) PORT_SENSITIVITY(30) PORT_KEYDELTA(10) PORT_CENTERDELTA(0) PORT_REVERSE
+INPUT_PORTS_END
+
+
+static const gfx_layout destroyr_alpha_num_layout =
+{
+ 8, 8, /* width, height */
+ 64, /* total */
+ 1, /* planes */
+ { 0 }, /* plane offsets */
+ {
+ 0x4, 0x5, 0x6, 0x7, 0xC, 0xD, 0xE, 0xF
+ },
+ {
+ 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70
+ },
+ 0x80 /* increment */
+};
+
+
+static const gfx_layout destroyr_minor_object_layout =
+{
+ 16, 16, /* width, height */
+ 32, /* total */
+ 1, /* planes */
+ { 0 }, /* plane offsets */
+ {
+ 0x04, 0x05, 0x06, 0x07, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x14, 0x15, 0x16, 0x17, 0x1C, 0x1D, 0x1E, 0x1F
+ },
+ {
+ 0x000, 0x020, 0x040, 0x060, 0x080, 0x0a0, 0x0c0, 0x0e0,
+ 0x100, 0x120, 0x140, 0x160, 0x180, 0x1a0, 0x1c0, 0x1e0
+ },
+ 0x200 /* increment */
+};
+
+static const UINT32 destroyr_major_object_layout_xoffset[64] =
+{
+ 0x00, 0x02, 0x04, 0x06, 0x08, 0x0A, 0x0C, 0x0E,
+ 0x10, 0x12, 0x14, 0x16, 0x18, 0x1A, 0x1C, 0x1E,
+ 0x20, 0x22, 0x24, 0x26, 0x28, 0x2A, 0x2C, 0x2E,
+ 0x30, 0x32, 0x34, 0x36, 0x38, 0x3A, 0x3C, 0x3E,
+ 0x40, 0x42, 0x44, 0x46, 0x48, 0x4A, 0x4C, 0x4E,
+ 0x50, 0x52, 0x54, 0x56, 0x58, 0x5A, 0x5C, 0x5E,
+ 0x60, 0x62, 0x64, 0x66, 0x68, 0x6A, 0x6C, 0x6E,
+ 0x70, 0x72, 0x74, 0x76, 0x78, 0x7A, 0x7C, 0x7E
+};
+
+static const gfx_layout destroyr_major_object_layout =
+{
+ 64, 16, /* width, height */
+ 4, /* total */
+ 2, /* planes */
+ { 1, 0 }, /* plane offsets */
+ EXTENDED_XOFFS,
+ {
+ 0x000, 0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380,
+ 0x400, 0x480, 0x500, 0x580, 0x600, 0x680, 0x700, 0x780
+ },
+ 0x0800, /* increment */
+ destroyr_major_object_layout_xoffset,
+ NULL
+};
+
+static const UINT32 destroyr_waves_layout_xoffset[64] =
+{
+ 0x00, 0x01, 0x02, 0x03, 0x08, 0x09, 0x0A, 0x0B,
+ 0x10, 0x11, 0x12, 0x13, 0x18, 0x19, 0x1A, 0x1B,
+ 0x20, 0x21, 0x22, 0x23, 0x28, 0x29, 0x2A, 0x2B,
+ 0x30, 0x31, 0x32, 0x33, 0x38, 0x39, 0x3A, 0x3B,
+ 0x40, 0x41, 0x42, 0x43, 0x48, 0x49, 0x4A, 0x4B,
+ 0x50, 0x51, 0x52, 0x53, 0x58, 0x59, 0x5A, 0x5B,
+ 0x60, 0x61, 0x62, 0x63, 0x68, 0x69, 0x6A, 0x6B,
+ 0x70, 0x71, 0x72, 0x73, 0x78, 0x79, 0x7A, 0x7B
+};
+
+static const gfx_layout destroyr_waves_layout =
+{
+ 64, 2, /* width, height */
+ 2, /* total */
+ 1, /* planes */
+ { 0 },
+ EXTENDED_XOFFS,
+ { 0x00, 0x80 },
+ 0x04, /* increment */
+ destroyr_waves_layout_xoffset,
+ NULL
+};
+
+
+static GFXDECODE_START( destroyr )
+ GFXDECODE_ENTRY( "gfx1", 0, destroyr_alpha_num_layout, 4, 1 )
+ GFXDECODE_ENTRY( "gfx2", 0, destroyr_minor_object_layout, 4, 1 )
+ GFXDECODE_ENTRY( "gfx3", 0, destroyr_major_object_layout, 0, 1 )
+ GFXDECODE_ENTRY( "gfx4", 0, destroyr_waves_layout, 4, 1 )
+GFXDECODE_END
+
+
+PALETTE_INIT_MEMBER(destroyr_state, destroyr)
+{
+ palette.set_pen_color(0, rgb_t(0x00, 0x00, 0x00)); /* major objects */
+ palette.set_pen_color(1, rgb_t(0x50, 0x50, 0x50));
+ palette.set_pen_color(2, rgb_t(0xAF, 0xAF, 0xAF));
+ palette.set_pen_color(3, rgb_t(0xFF ,0xFF, 0xFF));
+ palette.set_pen_color(4, rgb_t(0x00, 0x00, 0x00)); /* alpha numerics, waves, minor objects */
+ palette.set_pen_color(5, rgb_t(0xFF, 0xFF, 0xFF));
+ palette.set_pen_color(6, rgb_t(0x00, 0x00, 0x00)); /* cursor */
+ palette.set_pen_color(7, rgb_t(0x78, 0x78, 0x78));
+}
+
+
+void destroyr_state::machine_start()
+{
+ m_dial_timer = timer_alloc(TIMER_DESTROYR_DIAL);
+ m_frame_timer = timer_alloc(TIMER_DESTROYR_FRAME);
+
+ save_item(NAME(m_cursor));
+ save_item(NAME(m_wavemod));
+ save_item(NAME(m_attract));
+ save_item(NAME(m_motor_speed));
+ save_item(NAME(m_noise));
+ save_item(NAME(m_potmask));
+ save_item(NAME(m_potsense));
+}
+
+static MACHINE_CONFIG_START( destroyr, destroyr_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M6800, XTAL_12_096MHz / 16)
+ MCFG_CPU_PROGRAM_MAP(destroyr_map)
+ MCFG_CPU_PERIODIC_INT_DRIVER(destroyr_state, irq0_line_assert, 4*60)
+
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_SIZE(256, 262)
+ MCFG_SCREEN_VISIBLE_AREA(0, 255, 0, 239)
+ MCFG_SCREEN_UPDATE_DRIVER(destroyr_state, screen_update)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", destroyr)
+ MCFG_PALETTE_ADD("palette", 8)
+ MCFG_PALETTE_INIT_OWNER(destroyr_state, destroyr)
+
+ /* sound hardware */
+MACHINE_CONFIG_END
+
+
+ROM_START( destroyr )
+ ROM_REGION( 0x8000, "maincpu", 0 ) /* program code */
+ ROM_LOAD( "030138.rom",0x7000, 0x0800, NO_DUMP ) // optional add-on translation rom
+ ROM_LOAD( "030146-01.c3", 0x7800, 0x0800, CRC(e560c712) SHA1(0505ab57eee5421b4ff4e87d14505e02b18fd54c) )
+
+ ROM_REGION( 0x0400, "gfx1", 0 ) /* alpha numerics */
+ ROM_LOAD( "030135-01.p4", 0x0000, 0x0400, CRC(184824cf) SHA1(713cfd1d41ef7b1c345ea0038b652c4ba3f08301) )
+
+ ROM_REGION( 0x0800, "gfx2", 0 ) /* minor objects */
+ ROM_LOAD( "030132-01.f4", 0x0000, 0x0400, CRC(e09d3d55) SHA1(b26013397ef2cb32d0416ecb118387b9c2dffa9a) )
+ ROM_LOAD( "030132-01.k4", 0x0400, 0x0400, CRC(e09d3d55) SHA1(b26013397ef2cb32d0416ecb118387b9c2dffa9a) ) // identical to f4
+
+ ROM_REGION( 0x0400, "gfx3", 0 ) /* major objects */
+ ROM_LOAD_NIB_HIGH( "030134-01.p8", 0x0000, 0x0400, CRC(6259e007) SHA1(049f5f7160305cb4f4b499dd113cb11eea73fc95) )
+ ROM_LOAD_NIB_LOW ( "030133-01.n8", 0x0000, 0x0400, CRC(108d3e2c) SHA1(8c993369d37c6713670483af78e6d04d38f4b4fc) )
+
+ ROM_REGION( 0x0020, "gfx4", 0 ) /* waves */
+ ROM_LOAD( "030136-01.k2", 0x0000, 0x0020, CRC(532c11b1) SHA1(18ab5369a3f2cfcc9a44f38fa8649524bea5b203) )
+
+ ROM_REGION( 0x0100, "user1", 0 ) /* sync (used for vsync/vblank signals, not hooked up yet) */
+ ROM_LOAD( "030131-01.m1", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) )
+ROM_END
+
+ROM_START( destroyr1 )
+ ROM_REGION( 0x8000, "maincpu", 0 ) /* program code */
+ ROM_LOAD( "030138.rom",0x7000, 0x0800, NO_DUMP ) // optional add-on translation rom
+ ROM_LOAD_NIB_HIGH( "030142-01.f3", 0x7800, 0x0400, CRC(9e9a08d3) SHA1(eb31bab1537caf43ab8c3d23a6c9cc2009fcb98e) )
+ ROM_LOAD_NIB_LOW ( "030141-01.e2", 0x7800, 0x0400, CRC(c924fbce) SHA1(53aa9a3c4c6e90fb94500ddfa6c2ae3076eee2ef) )
+ ROM_LOAD_NIB_HIGH( "030144-01.j3", 0x7c00, 0x0400, CRC(0c7135c6) SHA1(6a0180353a0a6f34639dadc23179f6323aae8d62) )
+ ROM_LOAD_NIB_LOW ( "030143-01.h2", 0x7c00, 0x0400, CRC(b946e6f0) SHA1(b906024bb0e03a644fff1d5516637c24916b096e) )
+
+ ROM_REGION( 0x0400, "gfx1", 0 ) /* alpha numerics */
+ ROM_LOAD( "030135-01.p4", 0x0000, 0x0400, CRC(184824cf) SHA1(713cfd1d41ef7b1c345ea0038b652c4ba3f08301) )
+
+ ROM_REGION( 0x0800, "gfx2", 0 ) /* minor objects */
+ ROM_LOAD( "030132-01.f4", 0x0000, 0x0400, CRC(e09d3d55) SHA1(b26013397ef2cb32d0416ecb118387b9c2dffa9a) )
+ ROM_LOAD( "030132-01.k4", 0x0400, 0x0400, CRC(e09d3d55) SHA1(b26013397ef2cb32d0416ecb118387b9c2dffa9a) ) // identical to f4
+
+ ROM_REGION( 0x0400, "gfx3", 0 ) /* major objects */
+ ROM_LOAD_NIB_HIGH( "030134-01.p8", 0x0000, 0x0400, CRC(6259e007) SHA1(049f5f7160305cb4f4b499dd113cb11eea73fc95) )
+ ROM_LOAD_NIB_LOW ( "030133-01.n8", 0x0000, 0x0400, CRC(108d3e2c) SHA1(8c993369d37c6713670483af78e6d04d38f4b4fc) )
+
+ ROM_REGION( 0x0020, "gfx4", 0 ) /* waves */
+ ROM_LOAD( "030136-01.k2", 0x0000, 0x0020, CRC(532c11b1) SHA1(18ab5369a3f2cfcc9a44f38fa8649524bea5b203) )
+
+ ROM_REGION( 0x0100, "user1", 0 ) /* sync (used for vsync/vblank signals, not hooked up yet) */
+ ROM_LOAD( "030131-01.m1", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) )
+ROM_END
+
+
+GAMEL( 1977, destroyr, 0, destroyr, destroyr, driver_device, 0, ORIENTATION_FLIP_X, "Atari", "Destroyer (version O2)", MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE, layout_destroyr )
+GAMEL( 1977, destroyr1, destroyr, destroyr, destroyr, driver_device, 0, ORIENTATION_FLIP_X, "Atari", "Destroyer (version O1)", MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE, layout_destroyr )