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-rw-r--r--src/devices/machine/ins8250.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/devices/machine/ins8250.cpp b/src/devices/machine/ins8250.cpp
index 88262cdbac2..d127ce0e40d 100644
--- a/src/devices/machine/ins8250.cpp
+++ b/src/devices/machine/ins8250.cpp
@@ -390,6 +390,8 @@ WRITE8_MEMBER( ins8250_uart_device::ins8250_w )
if ( m_regs.msr & 0x0f )
trigger_int(COM_INT_PENDING_MODEM_STATUS_REGISTER);
+ else
+ clear_int(COM_INT_PENDING_MODEM_STATUS_REGISTER);
break;
case 7:
m_regs.scr = data;