diff options
Diffstat (limited to 'src/devices/machine/i8255.cpp')
-rw-r--r-- | src/devices/machine/i8255.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/devices/machine/i8255.cpp b/src/devices/machine/i8255.cpp index 9023e1ddd19..212eeda644f 100644 --- a/src/devices/machine/i8255.cpp +++ b/src/devices/machine/i8255.cpp @@ -229,6 +229,7 @@ i8255_device::i8255_device(const machine_config &mconfig, device_type type, cons , m_out_pc_cb(*this) , m_tri_pa_cb(*this) , m_tri_pb_cb(*this) + , m_tri_pc_cb(*this) , m_control(0) , m_intr{ 0, 0 } { @@ -250,6 +251,7 @@ void i8255_device::device_resolve_objects() m_out_pc_cb.resolve_safe(); m_tri_pa_cb.resolve_safe(0xff); m_tri_pb_cb.resolve_safe(0xff); + m_tri_pc_cb.resolve_safe(0xff); } //------------------------------------------------- @@ -522,8 +524,8 @@ void i8255_device::output_pc() } else { - // TTL inputs float high - data |= 0xf0; + // TTL inputs floating + data |= m_tri_pc_cb(0) & 0xf0; } break; @@ -560,8 +562,8 @@ void i8255_device::output_pc() } else { - // TTL inputs float high - data |= b_mask; + // TTL inputs floating + data |= m_tri_pc_cb(0) & b_mask; } break; |