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-rw-r--r--src/mess/drivers/ti99_4x.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mess/drivers/ti99_4x.c b/src/mess/drivers/ti99_4x.c
index f0dd558779d..4b3bf30791a 100644
--- a/src/mess/drivers/ti99_4x.c
+++ b/src/mess/drivers/ti99_4x.c
@@ -647,6 +647,10 @@ INPUT_CHANGED_MEMBER( ti99_4x_state::load_interrupt )
Links to external devices
***********************************************************/
+// FIXME: The sound chip is one of the devices that may operate the ready line
+// at some later time and thus mess up the READY handling (raises the READY
+// line without bothering about the rest). We need to do a proper AND here.
+
/*
We may have lots of devices pulling down this line; so we should use a AND
gate to do it right. On the other hand, when READY is down, there is just