diff options
Diffstat (limited to 'src/mame/machine/mac.cpp')
-rw-r--r-- | src/mame/machine/mac.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/mame/machine/mac.cpp b/src/mame/machine/mac.cpp index 43cac6789cf..8e3bc092fa3 100644 --- a/src/mame/machine/mac.cpp +++ b/src/mame/machine/mac.cpp @@ -1238,10 +1238,17 @@ WRITE_LINE_MEMBER(mac_state::mac_adb_via_out_cb2) } else { - if (state) - m_adb_command |= 1; - else - m_adb_command &= ~1; + if (m_adb_timer_ticks > 1) + { + if (state) + { + m_adb_command |= 1; + } + else + { + m_adb_command &= ~1; + } + } } } |