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Diffstat (limited to 'src/devices/machine/mc6852.cpp')
-rw-r--r--src/devices/machine/mc6852.cpp7
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))
{