proteus
I have a problem with subcircuits in Proteus software.
I know I should change the name of the subcircuit to work and it gives error when we don't.
But even when I change name and run simulation it still doesn't work and just the last subcircuit that I copied works.
The simulation is working and it gives no error in run or after runnig.
It seems to be a bug in Proteus. When creating very large circuits using hundred of logic gates, memories and flip-flop Proteus starts doing very weird things.
When you choose 7486, does the preview say "no simulator model"? If so then you will get the error you described because the version of Proteus you are using doesn't have a Spice model for that part.
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