@c "cmd/unstable.texi"
@c extracted from "../../src/sim/prsim/Command-prsim.cc"
@c by "$(top_srcdir)/scripts/extract_texinfo.awk".

@deffn Command unstable [mode]
Set the simulator policy in the event of an instability.
A rule is unstable when it is enqueued to fire, 
but a change in the input literal/expression stops the rule from firing.  
Stability is a requirement of quasi-delay insensitive circuits.  
Default mode is @t{break}.
@end deffn

