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Galaxy Force II: Adding gforce_output_cb1 (the values written there seem to select the meaning of some of the PORTC bits related to motor control)

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This commit is contained in:
Felipe Corrêa da Silva Sanches 2014-11-02 02:22:27 -02:00
parent 5082ee9133
commit 55b4c23e64
2 changed files with 18 additions and 2 deletions
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19
src/mame/drivers/segaybd.c
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@ -395,6 +395,20 @@ void segaybd_state::device_timer(emu_timer &timer, device_timer_id id, int param
// (IO chip 0), seem to have something to do with the sensor
// switches we need to fix
//-------------------------------------------------
// gforce2_output_cb1 - output #1 handler for
// Galaxy Force
//-------------------------------------------------
void segaybd_state::gforce2_output_cb1(UINT16 data)
{
logerror("gforce2_output_cb1: '%02X'\n", data & 0xFF);
//bits 4, 5, and 7 seem to be used to multiplex the PORTC signals
//The exact mapping of these signals is yet not perfectly understood.
//You can observe how this value changes when switching pages in the
//service mode motor test menu
}
//-------------------------------------------------
// gforce2_output_cb2 - output #2 handler for
// Galaxy Force
@ -873,8 +887,8 @@ static INPUT_PORTS_START( gforce2 )
PORT_MODIFY("PORTC")
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Floor Switch")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Beam Sensor 2 / Down Limit")
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Beam Sensor 1 / Up Limit")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Beam Sensor 2 / Down Limit") //The meaning of these portbits seems to be selected
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Beam Sensor 1 / Up Limit") // by the output value written to gforce2_output_cb1
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Left CCW Limit")
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Right CW Limit")
@ -2524,6 +2538,7 @@ DRIVER_INIT_MEMBER(segaybd_state,generic)
DRIVER_INIT_MEMBER(segaybd_state,gforce2)
{
DRIVER_INIT_CALL(generic);
m_output_cb1 = output_delegate(FUNC(segaybd_state::gforce2_output_cb1), this);
m_output_cb2 = output_delegate(FUNC(segaybd_state::gforce2_output_cb2), this);
}

1
src/mame/includes/segaybd.h
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@ -64,6 +64,7 @@ public:
DECLARE_READ8_MEMBER( link_portc0_r );
// game-specific output handlers
void gforce2_output_cb1(UINT16 data);
void gforce2_output_cb2(UINT16 data);
void gloc_output_cb1(UINT16 data);
void gloc_output_cb2(UINT16 data);