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-rw-r--r--src/jtag/jtag.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index 05c6628b..04b3892d 100644
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -854,6 +854,11 @@ void jtag_add_pathmove(int num_states, enum tap_state *path)
for (i=0; i<num_states; i++)
{
+ if (path[i] == TAP_TLR)
+ {
+ LOG_ERROR("BUG: TAP_TLR is not a valid state for pathmove sequences");
+ exit(-1);
+ }
if ((tap_transitions[cur_state].low != path[i])&&
(tap_transitions[cur_state].high != path[i]))
{