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-rw-r--r--src/devices/machine/68340.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/machine/68340.cpp b/src/devices/machine/68340.cpp
index 827bb48c7aa..e9f8ba7ba8e 100644
--- a/src/devices/machine/68340.cpp
+++ b/src/devices/machine/68340.cpp
@@ -78,6 +78,7 @@ IRQ_CALLBACK_MEMBER(m68340_cpu_device::int_ack)
int response = 0;
uint32_t vector = standard_irq_callback(irqline);
+ // Valid IARB levels are F (high) to 1 (low) and should be unique among modules using the same interrupt level
if (iarb != 0)
{
if (iarb == scu_iarb)