diff options
Diffstat (limited to 'src/mame/drivers/macpwrbk030.cpp')
-rw-r--r-- | src/mame/drivers/macpwrbk030.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/macpwrbk030.cpp b/src/mame/drivers/macpwrbk030.cpp index 5c92ef275fa..f18ad6d5ce3 100644 --- a/src/mame/drivers/macpwrbk030.cpp +++ b/src/mame/drivers/macpwrbk030.cpp @@ -267,8 +267,9 @@ private: int m_adb_line; void set_adb_line(int state) { m_adb_line = state; } u8 pmu_adb_r() { return (m_adb_line<<1); } - void pmu_adb_w(u8 data) { m_macadb->adb_linechange_w(data & 1); } - u8 pmu_in_r() { return 0x20; } // bit 5 is 0 if the Target Disk Mode should be enabled on the PB100 + void pmu_adb_w(u8 data) { m_macadb->adb_linechange_w((data & 1) ^ 1); } + + u8 pmu_in_r() { return 0x20; } // bit 5 is 0 if the Target Disk Mode should be enabled }; // 4-level grayscale @@ -520,6 +521,7 @@ TIMER_CALLBACK_MEMBER(macpb030_state::mac_6015_tick) m_via1->write_ca1(m_ca1_data); m_pmu->set_input_line(m50753_device::M50753_INT1_LINE, ASSERT_LINE); + m_macadb->adb_vblank(); if (++m_irq_count == 60) { |