Set or clear nonfinite value break mode
nanbreak na
The nanbreak command causes the debugger to break whenever the simulation encounters a nonfinite (NaN or Inf) value. If nonfinite break mode is set, nanbreak clears it.
nanbreak
NaN
Inf
bafter | break | rbreak | tbreak | xbreak | zcbreak
bafter
break
rbreak
tbreak
xbreak
zcbreak
ebreak