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https://github.com/holub/mame
synced 2025-05-22 21:58:57 +03:00
some work on custom i/o
This commit is contained in:
Michaël Banaan Ananas
parent
9a6ccf9a06
commit
5afef02f71
@ -510,7 +510,7 @@ INLINE UINT16 iochip_r(running_machine &machine, int which, int port, int inputv
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/* if there's custom I/O, do that to get the input value */
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if (state->m_iochip_custom_io_r[which])
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inputval = (*state->m_iochip_custom_io_r[which])(port, inputval);
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inputval = (*state->m_iochip_custom_io_r[which])(machine, port, inputval);
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/* for ports 0-3, the direction is controlled 4 bits at a time by register 6 */
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if (port <= 3)
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@ -599,10 +599,15 @@ static WRITE16_HANDLER( iochip_0_w )
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D1: (CONT) - affects sprite hardware
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D0: Sound section reset (1= normal operation, 0= reset)
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*/
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if (((oldval ^ data) & 0x40) && !(data & 0x40)) state->watchdog_reset_w(*space,0,0);
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if (((oldval ^ data) & 0x40) && !(data & 0x40))
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state->watchdog_reset_w(*space, 0, 0);
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segaic16_set_display_enable(space->machine(), data & 0x20);
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device_set_input_line(state->m_soundcpu, INPUT_LINE_RESET, (data & 0x01) ? CLEAR_LINE : ASSERT_LINE);
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return;
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if (state->m_soundcpu2 != NULL)
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device_set_input_line(state->m_soundcpu2, INPUT_LINE_RESET, (data & 0x01) ? CLEAR_LINE : ASSERT_LINE);
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break;
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case 3:
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/* Output port:
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@ -610,10 +615,15 @@ static WRITE16_HANDLER( iochip_0_w )
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D6-D0: CN D pin A17-A23 (output level 1= high, 0= low)
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*/
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space->machine().sound().system_enable(data & 0x80);
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return;
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break;
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default: break;
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}
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if (offset <= 4)
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/* if there's custom I/O, handle that as well */
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if (state->m_iochip_custom_io_w[0])
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(*state->m_iochip_custom_io_w[0])(space->machine(), offset, data);
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else if (offset <= 4)
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logerror("I/O chip 0, port %c write = %02X\n", 'A' + offset, data);
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}
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@ -657,11 +667,12 @@ static WRITE16_HANDLER( iochip_1_w )
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return;
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data &= 0xff;
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/* swap in the new value and remember the previous value */
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state->m_iochip_regs[1][offset] = data;
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if (offset <= 4)
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/* if there's custom I/O, handle that as well */
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if (state->m_iochip_custom_io_w[1])
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(*state->m_iochip_custom_io_w[1])(space->machine(), offset, data);
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else if (offset <= 4)
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logerror("I/O chip 1, port %c write = %02X\n", 'A' + offset, data);
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}
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@ -684,40 +695,99 @@ static WRITE16_HANDLER( iocontrol_w )
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*
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*************************************/
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static WRITE16_HANDLER( aburner2_iochip_0_D_w )
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static UINT8 aburner2_iochip_0_r(running_machine &machine, int port, UINT8 data)
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{
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segas1x_state *state = space->machine().driver_data<segas1x_state>();
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switch (port)
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{
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// motor status
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case 0:
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data &= 0xc0;
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/* access is via the low 8 bits */
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if (!ACCESSING_BITS_0_7)
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return;
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// TODO
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data |= 0x3f;
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break;
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default: break;
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}
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return data;
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}
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state->m_iochip_regs[0][3] = data;
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static void aburner2_iochip_0_w(running_machine &machine, int port, UINT8 data)
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{
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switch (port)
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{
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// motor control
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case 1:
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// TODO
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break;
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// unknown
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case 2:
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break;
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// lamps/coincounter
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case 3:
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// in clone aburner, lamps work only in testmode?
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output_set_lamp_value(2, (data >> 1) & 0x01); /* altitude warning lamp */
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output_set_led_value(0, (data >> 2) & 0x01); /* start lamp */
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output_set_lamp_value(0, (data >> 5) & 0x01); /* lock on lamp */
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output_set_lamp_value(1, (data >> 6) & 0x01); /* danger lamp */
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coin_counter_w(machine, 0, (data >> 4) & 0x01);
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break;
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output_set_lamp_value(2, (data >> 1) & 0x01); /* altitude warning lamp */
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output_set_led_value(0, (data >> 2) & 0x01); /* start lamp */
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coin_counter_w(space->machine(), 0, (data >> 4) & 0x01);
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output_set_lamp_value(0, (data >> 5) & 0x01); /* lock on lamp */
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output_set_lamp_value(1, (data >> 6) & 0x01); /* danger lamp */
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space->machine().sound().system_enable((data >> 7) & 0x01);
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default: break;
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}
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}
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/*************************************
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*
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* Line of Fire Custom I/O
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* SMGP Custom I/O
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*
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*************************************/
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static WRITE16_HANDLER( loffire_sync0_w )
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static UINT8 smgp_iochip_0_r(running_machine &machine, int port, UINT8 data)
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{
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segas1x_state *state = space->machine().driver_data<segas1x_state>();
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switch (port)
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{
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// motor/air drive status
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case 0:
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data &= 0xc0;
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COMBINE_DATA(&state->m_loffire_sync[offset]);
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space->machine().scheduler().boost_interleave(attotime::zero, attotime::from_usec(10));
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// TODO
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data |= 0;
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break;
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default: break;
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}
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return data;
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}
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static void smgp_iochip_0_w(running_machine &machine, int port, UINT8 data)
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{
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switch (port)
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{
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// motor/air drive control
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case 1:
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// TODO
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break;
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// unknown
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case 2:
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break;
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// lamps/coincounter
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case 3:
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// lamps: TODO
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coin_counter_w(machine, 0, (data >> 4) & 0x01);
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break;
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default: break;
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}
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}
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/*************************************
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@ -906,17 +976,6 @@ ADDRESS_MAP_END
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*
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*************************************/
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/*
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aburner chip 0, port A: motor status (R)
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chip 0, port B: motor power (W)
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chip 0, port C: unknown (W)
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chip 0, port D: lamp (W)
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chip 1, port A: buttons
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chip 1, port B: ---
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chip 1, port C: DIPs
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chip 1, port D: DIPs
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*/
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static INPUT_PORTS_START( xboard_generic )
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PORT_START("IO0PORTA")
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PORT_BIT( 0x3f, IP_ACTIVE_LOW, IPT_UNKNOWN )
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@ -2977,23 +3036,20 @@ static DRIVER_INIT( aburner2 )
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segas1x_state *state = machine.driver_data<segas1x_state>();
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xboard_generic_init(machine);
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state->m_road_priority = 0;
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machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_write_handler(0x140006, 0x140007, 0, 0x00fff0, FUNC(aburner2_iochip_0_D_w));
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state->m_iochip_custom_io_r[0] = aburner2_iochip_0_r;
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state->m_iochip_custom_io_w[0] = aburner2_iochip_0_w;
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}
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static DRIVER_INIT( aburner )
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static WRITE16_HANDLER( loffire_sync0_w )
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{
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segas1x_state *state = machine.driver_data<segas1x_state>();
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segas1x_state *state = space->machine().driver_data<segas1x_state>();
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xboard_generic_init(machine);
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state->m_road_priority = 0;
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COMBINE_DATA(&state->m_loffire_sync[offset]);
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space->machine().scheduler().boost_interleave(attotime::zero, attotime::from_usec(10));
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}
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static DRIVER_INIT( loffire )
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{
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segas1x_state *state = machine.driver_data<segas1x_state>();
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@ -3001,7 +3057,7 @@ static DRIVER_INIT( loffire )
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xboard_generic_init(machine);
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state->m_adc_reverse[1] = state->m_adc_reverse[3] = 1;
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/* install extra synchronization on core shared memory */
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/* install sync hack on core shared memory */
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state->m_loffire_sync = machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_write_handler(0x29c000, 0x29c011, FUNC(loffire_sync0_w));
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}
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@ -3011,9 +3067,11 @@ static DRIVER_INIT( smgp )
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segas1x_state *state = machine.driver_data<segas1x_state>();
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xboard_generic_init(machine);
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machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0x2f0000, 0x2f3fff, FUNC(smgp_excs_r), FUNC(smgp_excs_w));
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state->m_soundcpu2 = machine.device("soundcpu2");
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state->m_iochip_custom_io_r[0] = smgp_iochip_0_r;
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state->m_iochip_custom_io_w[0] = smgp_iochip_0_w;
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machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0x2f0000, 0x2f3fff, FUNC(smgp_excs_r), FUNC(smgp_excs_w));
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}
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@ -3027,6 +3085,7 @@ static DRIVER_INIT( rascot )
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rom[0x606/2] = 0x4e71;
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xboard_generic_init(machine);
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machine.device("sub")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0x0f0000, 0x0f3fff, FUNC(rascot_excs_r), FUNC(rascot_excs_w));
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}
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@ -3049,7 +3108,7 @@ static DRIVER_INIT( gprider )
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// YEAR, NAME, PARENT, MACHINE, INPUT, INIT, MONITOR,COMPANY,FULLNAME,FLAGS
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GAME( 1987, aburner2, 0, xboard, aburner2, aburner2, ROT0, "Sega", "After Burner II", 0 )
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GAME( 1987, aburner, aburner2, xboard, aburner, aburner, ROT0, "Sega", "After Burner (Japan)", 0 )
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GAME( 1987, aburner, aburner2, xboard, aburner, aburner2, ROT0, "Sega", "After Burner (Japan)", 0 )
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GAME( 1987, thndrbld, 0, xboard, thndrbld, generic_xboard, ROT0, "Sega", "Thunder Blade (upright, FD1094 317-0056)", 0 )
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GAME( 1987, thndrbld1,thndrbld, xboard, thndrbd1, generic_xboard, ROT0, "Sega", "Thunder Blade (deluxe/standing, unprotected)", 0 )
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GAME( 1989, loffire, 0, xboard, loffire, loffire, ROT0, "Sega", "Line of Fire / Bakudan Yarou (World, FD1094 317-0136)", 0 )
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@ -74,8 +74,8 @@ public:
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UINT8 m_iochip_regs[2][8];
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UINT8 m_iochip_force_input;
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UINT8 (*m_iochip_custom_io_r[2])(offs_t offset, UINT8 portdata); // currently unused
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void (*m_iochip_custom_io_w[2])(offs_t offset, UINT8 data); // currently unused
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UINT8 (*m_iochip_custom_io_r[2])(running_machine &machine, int port, UINT8 data);
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void (*m_iochip_custom_io_w[2])(running_machine &machine, int port, UINT8 data);
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UINT8 m_adc_reverse[8];
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