diff options
Diffstat (limited to 'trunk/src/mame/drivers/clayshoo.c')
-rw-r--r-- | trunk/src/mame/drivers/clayshoo.c | 371 |
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 ) |