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HSPICE: Pass/fail check

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ankumar

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Hello,

In past I have done condition checking on output of a circuit and based on certain voltage declared "0" or "1" (similar to pass/ fail).
For example
if V(out) is less than 0.5*VDD then declare "Fail" or "0"
I am trying to verify 12 bit decoder using hspice or ultrasim. Manually checking each decoded bit can be time consuming , hence trying to automate.

Any help will be appreciated.

Thanks
Anil K.

- - - Updated - - -

Please let me know if following approach is not right

.param p_vdd=1.2V
.if (v(out)==p_vdd)
.title V(out) pass
.else
.title v(out) fail
.endif
 

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