Hello Al and other Gnucap developers on this list... I posted a message similar to this to the gnucap list a few days ago, but I suspect the list manager bounced me since I'm not on the list -- I don't see it in the archives anyway. Since then, I've learned some more, so hear I go again...
The following netlist crashes the 3-29 snapshot when I run it on my PC. When compiled with debugging enabled, I get an assertion failure. * gnetlist -g spice-sdb -o spice.netlist.wpd TwoStageAmp.sch .model 2N3904 NPN(IS=1E-14 VAF=100 + Bf=300 IKF=0.4 XTB=1.5 BR=4 + CJC=4E-12 CJE=8E-12 RB=20 RC=0.1 RE=0.1 + TR=250E-9 TF=350E-12 ITF=1 VTF=2 XTF=3 Vceo=40 Icrating=200m mfg=Philips) R5 Vin 1 10 .OP RE1 0 Vem1 100 Q1 Vcoll1 Vbase1 Vem1 2N3904 R2 0 Vbase1 2K .end The crash/assertion failure occurs when I execute the "op" command at the Gnucap prompt. I've poked around and it appears that since I execute the ".op" command halfway through the script, 'DEV_RESISTANCE::precalc()' never gets called for RE1 and R2, leading to unpleasantness. Poking around some more, I see in 'SIM::init()' where 'precalc()' would be called, and I wonder if it would do any harm to move the call to 'precalc()' to be outside the if statement. At that point, I stop, since I don't know enough about the overall design and implementation of Gnucap to know if invoking the 'precalc()' method multiple times on the elements in a design would be a good thing or not. So, now I'll turn this over to the experts. Have fun! :-) --wpd _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
