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-rw-r--r--src/mame/drivers/backfire.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/backfire.cpp b/src/mame/drivers/backfire.cpp
index 1d29a32e88b..70498ade9df 100644
--- a/src/mame/drivers/backfire.cpp
+++ b/src/mame/drivers/backfire.cpp
@@ -4,9 +4,9 @@
Backfire!
- inputs are incomplete (p2 side.., alt control modes etc.)
+ Note that the alternate "Potentiometer" controls (which set 2 has as the default) must first be calibrated by holding 1P Button 2 + Start on the "I/O Check" screen.
- Potentiometer controls (which set 2 has as default) are mapped now, but don't seem to work in-game
+ The alternate "Optical Sensor" controls are not currently emulated.
there may still be some problems with the 156 co-processor, but it seems to be mostly correct