diff options
Diffstat (limited to 'src/mame/machine/midwayic.cpp')
-rw-r--r-- | src/mame/machine/midwayic.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/mame/machine/midwayic.cpp b/src/mame/machine/midwayic.cpp index 74492038885..df86ffc5a3a 100644 --- a/src/mame/machine/midwayic.cpp +++ b/src/mame/machine/midwayic.cpp @@ -644,6 +644,10 @@ DEFINE_DEVICE_TYPE(MIDWAY_IOASIC, midway_ioasic_device, "midway_ioasic", "Midway midway_ioasic_device::midway_ioasic_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : midway_serial_pic2_device(mconfig, MIDWAY_IOASIC, tag, owner, clock), + m_io_dips(*this, ":DIPS"), + m_io_system(*this, ":SYSTEM"), + m_io_in1(*this, ":IN1"), + m_io_in2(*this, ":IN2"), m_serial_tx_cb(*this), m_aux_output_cb(*this), m_has_dcs(0), @@ -962,20 +966,20 @@ READ32_MEMBER( midway_ioasic_device::read ) result = 0x2001; } else { - result = machine().root_device().ioport("DIPS")->read(); + result = m_io_dips->read(); } break; case IOASIC_PORT1: - result = machine().root_device().ioport("SYSTEM")->read(); + result = m_io_system->read(); break; case IOASIC_PORT2: - result = machine().root_device().ioport("IN1")->read(); + result = m_io_in1->read(); break; case IOASIC_PORT3: - result = machine().root_device().ioport("IN2")->read(); + result = m_io_in2->read(); break; case IOASIC_UARTIN: |