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-rw-r--r--trunk/src/mame/drivers/clayshoo.c371
1 files changed, 371 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/clayshoo.c b/trunk/src/mame/drivers/clayshoo.c
new file mode 100644
index 00000000000..205d013a450
--- /dev/null
+++ b/trunk/src/mame/drivers/clayshoo.c
@@ -0,0 +1,371 @@
+/***************************************************************************
+
+ Atari Clay Shoot hardware
+
+ driver by Zsolt Vasvari
+
+ Games supported:
+ * Clay Shoot
+
+ Known issues:
+ * none at this time
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "machine/i8255.h"
+
+
+class clayshoo_state : public driver_device
+{
+public:
+ clayshoo_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag) ,
+ m_videoram(*this, "videoram"){ }
+
+ /* memory pointers */
+ required_shared_ptr<UINT8> m_videoram;
+
+ /* misc */
+ emu_timer *m_analog_timer_1, *m_analog_timer_2;
+ UINT8 m_input_port_select;
+ UINT8 m_analog_port_val;
+ DECLARE_WRITE8_MEMBER(analog_reset_w);
+ DECLARE_READ8_MEMBER(analog_r);
+};
+
+
+/*************************************
+ *
+ * Digital control handling functions
+ *
+ *************************************/
+
+static WRITE8_DEVICE_HANDLER( input_port_select_w )
+{
+ clayshoo_state *state = device->machine().driver_data<clayshoo_state>();
+ state->m_input_port_select = data;
+}
+
+
+static UINT8 difficulty_input_port_r( running_machine &machine, int bit )
+{
+ UINT8 ret = 0;
+
+ /* read fake port and remap the buttons to 2 bits */
+ UINT8 raw = machine.root_device().ioport("FAKE")->read();
+
+ if (raw & (1 << (bit + 1)))
+ ret = 0x03; /* expert */
+ else if (raw & (1 << (bit + 2)))
+ ret = 0x01; /* pro */
+ else
+ ret = 0x00; /* amateur otherwise */
+
+ return ret;
+}
+
+
+static READ8_DEVICE_HANDLER( input_port_r )
+{
+ clayshoo_state *state = device->machine().driver_data<clayshoo_state>();
+ UINT8 ret = 0;
+
+ switch (state->m_input_port_select)
+ {
+ case 0x01: ret = state->ioport("IN0")->read(); break;
+ case 0x02: ret = state->ioport("IN1")->read(); break;
+ case 0x04: ret = (state->ioport("IN2")->read() & 0xf0) | difficulty_input_port_r(device->machine(), 0) |
+ (difficulty_input_port_r(device->machine(), 3) << 2); break;
+ case 0x08: ret = state->ioport("IN3")->read(); break;
+ case 0x10:
+ case 0x20: break; /* these two are not really used */
+ default: logerror("Unexpected port read: %02X\n", state->m_input_port_select);
+ }
+ return ret;
+}
+
+
+
+/*************************************
+ *
+ * Analog control handling functions
+ *
+ *************************************/
+
+static TIMER_CALLBACK( reset_analog_bit )
+{
+ clayshoo_state *state = machine.driver_data<clayshoo_state>();
+ state->m_analog_port_val &= ~param;
+}
+
+
+static attotime compute_duration( device_t *device, int analog_pos )
+{
+ /* the 58 comes from the length of the loop used to
+ read the analog position */
+ return downcast<cpu_device *>(device)->cycles_to_attotime(58 * analog_pos);
+}
+
+
+WRITE8_MEMBER(clayshoo_state::analog_reset_w)
+{
+
+ /* reset the analog value, and start the two times that will fire
+ off in a short period proportional to the position of the
+ analog control and set the appropriate bit. */
+
+ m_analog_port_val = 0xff;
+
+ m_analog_timer_1->adjust(compute_duration(&space.device(), ioport("AN1")->read()), 0x02);
+ m_analog_timer_2->adjust(compute_duration(&space.device(), ioport("AN2")->read()), 0x01);
+}
+
+
+READ8_MEMBER(clayshoo_state::analog_r)
+{
+ return m_analog_port_val;
+}
+
+
+static void create_analog_timers( running_machine &machine )
+{
+ clayshoo_state *state = machine.driver_data<clayshoo_state>();
+ state->m_analog_timer_1 = machine.scheduler().timer_alloc(FUNC(reset_analog_bit));
+ state->m_analog_timer_2 = machine.scheduler().timer_alloc(FUNC(reset_analog_bit));
+}
+
+
+
+/*************************************
+ *
+ * Machine setup
+ *
+ *************************************/
+
+static I8255A_INTERFACE( ppi8255_0_intf )
+{
+ DEVCB_NULL, /* Port A read */
+ DEVCB_NULL, /* Port A write */
+ DEVCB_NULL, /* Port B read */
+ DEVCB_NULL, /* Port B write */
+ DEVCB_NULL, /* Port C read */
+ DEVCB_NULL /* Port C write */
+};
+
+static I8255A_INTERFACE( ppi8255_1_intf )
+{
+ DEVCB_NULL, /* Port A read */
+ DEVCB_HANDLER(input_port_select_w), /* Port A write */
+ DEVCB_HANDLER(input_port_r), /* Port B read */
+ DEVCB_NULL, /* Port B write */
+ DEVCB_NULL, /* Port C read */
+ DEVCB_NULL /* Port C write */
+};
+
+static MACHINE_START( clayshoo )
+{
+ clayshoo_state *state = machine.driver_data<clayshoo_state>();
+ create_analog_timers(machine);
+
+ /* register for state saving */
+ state->save_item(NAME(state->m_input_port_select));
+ state->save_item(NAME(state->m_analog_port_val));
+}
+
+
+
+/*************************************
+ *
+ * Video hardware
+ *
+ *************************************/
+
+static SCREEN_UPDATE_RGB32( clayshoo )
+{
+ clayshoo_state *state = screen.machine().driver_data<clayshoo_state>();
+ offs_t offs;
+
+ for (offs = 0; offs < state->m_videoram.bytes(); offs++)
+ {
+ int i;
+ UINT8 x = offs << 3;
+ UINT8 y = ~(offs >> 5);
+ UINT8 data = state->m_videoram[offs];
+
+ for (i = 0; i < 8; i++)
+ {
+ pen_t pen = (data & 0x80) ? RGB_WHITE : RGB_BLACK;
+ bitmap.pix32(y, x) = pen;
+
+ data = data << 1;
+ x = x + 1;
+ }
+ }
+
+ return 0;
+}
+
+
+
+/*************************************
+ *
+ * Memory handlers
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, clayshoo_state )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x2000, 0x23ff) AM_RAM
+ AM_RANGE(0x4000, 0x47ff) AM_ROM
+ AM_RANGE(0x8000, 0x97ff) AM_RAM AM_SHARE("videoram") /* 6k of video ram according to readme */
+ AM_RANGE(0x9800, 0xa800) AM_WRITENOP /* not really mapped, but cleared */
+ AM_RANGE(0xc800, 0xc800) AM_READWRITE(analog_r, analog_reset_w)
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Port handlers
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( main_io_map, AS_IO, 8, clayshoo_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_WRITE(watchdog_reset_w)
+ AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write)
+ AM_RANGE(0x30, 0x33) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write)
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Port definitions
+ *
+ *************************************/
+
+static INPUT_PORTS_START( clayshoo )
+ PORT_START("IN0")
+ PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( Free_Play ) )
+ PORT_BIT( 0x3c, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* doesn't appear to be used */
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) ) /* not 100% positive */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) /* used */
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+
+ PORT_START("IN1")
+ PORT_DIPNAME( 0x07, 0x01, "Time/Bonus 1P-2P" )
+ PORT_DIPSETTING( 0x00, "60/6k-90/6k" )
+ PORT_DIPSETTING( 0x01, "60/6k-120/8k" )
+ PORT_DIPSETTING( 0x02, "90/9.5k-150/9.5k" )
+ PORT_DIPSETTING( 0x03, "90/9.5k-190/11k" )
+ PORT_DIPSETTING( 0x04, "60/8k-90/8k" )
+ PORT_DIPSETTING( 0x05, "60/8k-120/10k" )
+ PORT_DIPSETTING( 0x06, "90/11.5k-150/11.5k" )
+ PORT_DIPSETTING( 0x07, "90/11.5k-190/13k" )
+ PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* doesn't appear to be used */
+
+ PORT_START("IN2")
+ PORT_BIT( 0x03, IP_ACTIVE_LOW, IPT_SPECIAL ) /* amateur/expert/pro Player 2 */
+ PORT_BIT( 0x0c, IP_ACTIVE_LOW, IPT_SPECIAL ) /* amateur/expert/pro Player 1 */
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+
+ PORT_START("IN3")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0xfe, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("AN1") /* IN4 - Fake analog control. Visible in $c800 bit 1 */
+ PORT_BIT( 0x0f, 0x08, IPT_AD_STICK_Y ) PORT_MINMAX(0,0x0f) PORT_SENSITIVITY(10) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(1)
+ PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("AN2") /* IN5 - Fake analog control. Visible in $c800 bit 0 */
+ PORT_BIT( 0x0f, 0x08, IPT_AD_STICK_Y ) PORT_MINMAX(0,0x0f) PORT_SENSITIVITY(10) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(2)
+ PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("FAKE") /* IN6 - Fake. Visible in IN2 bits 0-1 and 2-3 */
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_TOGGLE PORT_PLAYER(2) PORT_NAME("P2 Amateur Difficulty")
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_TOGGLE PORT_PLAYER(2) PORT_NAME("P2 Expert Difficulty")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_TOGGLE PORT_PLAYER(2) PORT_NAME("P2 Pro Difficulty")
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_TOGGLE PORT_PLAYER(1) PORT_NAME("P1 Amateur Difficulty")
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_TOGGLE PORT_PLAYER(1) PORT_NAME("P1 Expert Difficulty")
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_TOGGLE PORT_PLAYER(1) PORT_NAME("P2 Pro Difficulty")
+ PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
+INPUT_PORTS_END
+
+
+
+/*************************************
+ *
+ * Machine driver
+ *
+ *************************************/
+
+static MACHINE_RESET( clayshoo )
+{
+ clayshoo_state *state = machine.driver_data<clayshoo_state>();
+
+ state->m_input_port_select = 0;
+ state->m_analog_port_val = 0;
+}
+
+static MACHINE_CONFIG_START( clayshoo, clayshoo_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80,5068000/4) /* 5.068/4 Mhz (divider is a guess) */
+ MCFG_CPU_PROGRAM_MAP(main_map)
+ MCFG_CPU_IO_MAP(main_io_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)
+
+ MCFG_MACHINE_START(clayshoo)
+ MCFG_MACHINE_RESET(clayshoo)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_SIZE(256, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0, 255, 64, 255)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ MCFG_SCREEN_UPDATE_STATIC(clayshoo)
+
+ MCFG_I8255A_ADD( "ppi8255_0", ppi8255_0_intf )
+ MCFG_I8255A_ADD( "ppi8255_1", ppi8255_1_intf )
+MACHINE_CONFIG_END
+
+
+
+/*************************************
+ *
+ * ROM definitions
+ *
+ *************************************/
+
+ROM_START( clayshoo )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "0", 0x0000, 0x0800, CRC(9df9d9e3) SHA1(8ce71a6faf5df9c8c3dbb92a443b62c0f376491c) )
+ ROM_LOAD( "1", 0x0800, 0x0800, CRC(5134a631) SHA1(f0764a5161934564fd0416be26087cf812e0c422) )
+ ROM_LOAD( "2", 0x1000, 0x0800, CRC(5b5a67f6) SHA1(c97b4d44e6dc5dd0c42e04ffceed8934975fe769) )
+ ROM_LOAD( "3", 0x1800, 0x0800, CRC(7eda8e44) SHA1(2974f8b06653aee2ffd96ff402707acfc059bc91) )
+ ROM_LOAD( "4", 0x4000, 0x0800, CRC(3da16196) SHA1(eb0c0cf0c8fc3db05ac0c469fb20fe92ae6f27ce) )
+ROM_END
+
+
+
+/*************************************
+ *
+ * Game drivers
+ *
+ *************************************/
+
+GAME( 1979, clayshoo, 0, clayshoo, clayshoo, 0, ROT0, "Allied Leisure", "Clay Shoot", GAME_NO_SOUND | GAME_SUPPORTS_SAVE )