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-rw-r--r--src/devices/machine/phi.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/machine/phi.cpp b/src/devices/machine/phi.cpp
index 864ab7df44b..65610b06faa 100644
--- a/src/devices/machine/phi.cpp
+++ b/src/devices/machine/phi.cpp
@@ -110,7 +110,7 @@ constexpr uint16_t REG_INT_CLEARABLE_MASK = 0x40c1; // Mask of clearable bit
constexpr uint16_t REG_INT_STATE_MASK = 0x803e; // Mask of "state" bits
// Bits in inbound FIFO
-constexpr uint16_t REG_IFIFO_NORMAL_MASK = 0x0000; // Mask of D0/D1 bits for "normal" bytes
+//constexpr uint16_t REG_IFIFO_NORMAL_MASK = 0x0000; // Mask of D0/D1 bits for "normal" bytes
constexpr uint16_t REG_IFIFO_CNT_EXP_MASK = 0x8000; // Mask for a byte that caused byte count to expire
constexpr uint16_t REG_IFIFO_LAST_MASK = 0xc000; // Mask for last byte in a record
constexpr uint16_t REG_IFIFO_2_ADDR_MASK = 0x4000; // Mask for secondary addresses