diff options
Diffstat (limited to 'src/devices/machine/mc6852.cpp')
-rw-r--r-- | src/devices/machine/mc6852.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/devices/machine/mc6852.cpp b/src/devices/machine/mc6852.cpp index d2021a450a2..6d5a9876153 100644 --- a/src/devices/machine/mc6852.cpp +++ b/src/devices/machine/mc6852.cpp @@ -147,7 +147,7 @@ void mc6852_device::rcv_complete() // read - //------------------------------------------------- -READ8_MEMBER( mc6852_device::read ) +uint8_t mc6852_device::read(offs_t offset) { uint8_t data = 0; @@ -156,7 +156,8 @@ READ8_MEMBER( mc6852_device::read ) if (m_rx_fifo.size() > 0) { data = m_rx_fifo.front(); - m_rx_fifo.pop(); + if (!machine().side_effects_disabled()) + m_rx_fifo.pop(); } } else @@ -172,7 +173,7 @@ READ8_MEMBER( mc6852_device::read ) // write - //------------------------------------------------- -WRITE8_MEMBER( mc6852_device::write ) +void mc6852_device::write(offs_t offset, uint8_t data) { if (BIT(offset, 0)) { |