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Diffstat (limited to 'src/devices/cpu/pdp1/tx0.cpp')
-rw-r--r--src/devices/cpu/pdp1/tx0.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/cpu/pdp1/tx0.cpp b/src/devices/cpu/pdp1/tx0.cpp
index 99636fcb9c2..19ec75f223b 100644
--- a/src/devices/cpu/pdp1/tx0.cpp
+++ b/src/devices/cpu/pdp1/tx0.cpp
@@ -19,8 +19,8 @@
#define LOG_EXTRA 0
-#define READ_TX0_18BIT(A) ((signed)m_program->read_dword((A)<<2))
-#define WRITE_TX0_18BIT(A,V) (m_program->write_dword((A)<<2,(V)))
+#define READ_TX0_18BIT(A) ((signed)m_program->read_dword(A))
+#define WRITE_TX0_18BIT(A,V) (m_program->write_dword((A),(V)))
#define io_handler_rim 3