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Diffstat (limited to 'src/mame/drivers/quantum.cpp')
-rw-r--r--src/mame/drivers/quantum.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/quantum.cpp b/src/mame/drivers/quantum.cpp
index 07d19297ae3..89d16712a6e 100644
--- a/src/mame/drivers/quantum.cpp
+++ b/src/mame/drivers/quantum.cpp
@@ -188,7 +188,7 @@ void quantum_state::main_map(address_map &map)
static INPUT_PORTS_START( quantum )
PORT_START("SYSTEM")
/* YHALT here MUST BE ALWAYS 0 */
- PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER("avg", avg_quantum_device, done_r, nullptr) /* vg YHALT */
+ PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("avg", avg_quantum_device, done_r) // vg YHALT
PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN3 )
PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_START2 )