Why is this code in jtag_add_pathmove()?
??????????????????
/* the last state has to be a stable state */
if (!tap_is_state_stable(path[num_states - 1]))
{
LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
exit(-1);
}
???????????????????
It is not obvious to me why this function should not be allowed to move
between any states as allowed by the tap state diagram which is enforced
by the nifty tap_state_transition() tests:
if ( tap_state_transition(cur_state, true) != path[i]
&& tap_state_transition(cur_state, false) != path[i])
{
LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
tap_state_name(cur_state), tap_state_name(path[i]));
exit(-1);
}
Dick
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