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author Angelo Salese <angelosa@users.noreply.github.com>2011-08-22 17:19:04 +0000
committer Angelo Salese <angelosa@users.noreply.github.com>2011-08-22 17:19:04 +0000
commit1a1bd5c58471a627aa5dc2fea28d29f73c82ae13 (patch)
tree49f37f41ef382884239a4fd3cf28ce5fb12856b8 /src/mame/drivers
parentf6890038e62985d42e5848d87bbc37381fe16fc3 (diff)
Faked the Mascon via an analog port, that fixes a bunch of issues with undefined input state for Densya de Go 1/2
Diffstat (limited to 'src/mame/drivers')
-rw-r--r--src/mame/drivers/taitojc.c40
1 files changed, 31 insertions, 9 deletions
diff --git a/src/mame/drivers/taitojc.c b/src/mame/drivers/taitojc.c
index 8b9a3548726..80631e4f4a8 100644
--- a/src/mame/drivers/taitojc.c
+++ b/src/mame/drivers/taitojc.c
@@ -1155,6 +1155,25 @@ static INPUT_PORTS_START( taitojc )
INPUT_PORTS_END
#endif
+/* Mascon must always be in a defined state, Densya de Go 2 in particular returns black screen if the Mascon input is undefined
+ We convert the 6 lever "shifter" into a fake analog port for now. */
+static CUSTOM_INPUT( mascon_state_r )
+{
+ static const UINT8 mascon_table[6] = { 0x01, 0x10, 0x02, 0x20, 0x04, 0x40 };
+ UINT8 res = input_port_read(field.machine(), "MASCON");
+ int i;
+
+ //popmessage("%02x",res);
+
+ for(i=0;i<6;i++)
+ {
+ if((res & 0x70) == (0x10*i))
+ return mascon_table[i];
+ }
+
+ return mascon_table[5];
+}
+
static INPUT_PORTS_START( dendeg )
PORT_START("COINS")
PORT_BIT( 0xec, IP_ACTIVE_LOW, IPT_UNUSED )
@@ -1179,17 +1198,20 @@ static INPUT_PORTS_START( dendeg )
PORT_START("BUTTONS")
/* TODO: fix this */
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_NAME("Mascon 5") // Mascon 5
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_NAME("Mascon 3") // Mascon 3
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Mascon 1") // Mascon 1
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_NAME("Mascon 4") // Mascon 4
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("Mascon 2") // Mascon 2
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Mascon 0") // Mascon 0
+ PORT_BIT( 0x88, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x77, IP_ACTIVE_LOW, IPT_SPECIAL ) PORT_CUSTOM(mascon_state_r,NULL)
+// PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_NAME("Mascon 5") // Mascon 5
+// PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_NAME("Mascon 3") // Mascon 3
+// PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Mascon 1") // Mascon 1
+// PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_NAME("Mascon 4") // Mascon 4
+// PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("Mascon 2") // Mascon 2
+// PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Mascon 0") // Mascon 0
+
+ PORT_START("MASCON")
+ PORT_BIT( 0x7f, 0x00, IPT_POSITIONAL ) PORT_POSITIONS(0x60) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_CENTERDELTA(5)
PORT_START("ANALOG1") // Brake
- PORT_BIT( 0xff, 0x00, IPT_PEDAL ) PORT_MINMAX(0x00, 0xff) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_NAME("Brake")
+ PORT_BIT( 0xff, 0x00, IPT_PEDAL ) PORT_MINMAX(0x00, 0xff) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_CENTERDELTA(5) PORT_NAME("Brake")
INPUT_PORTS_END
static INPUT_PORTS_START( landgear )