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verilog-xl can dump vcd, but ncverilog can not dump vcd

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teacupfull business

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Dec 17, 2009, 8:32:56 PM12/17/09
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For a test bench, verilog-xl can dump vcd, but ncverilog can not
dump.
I kind of suspect my ncverilog setting has problem. But can't figure
out.
Any guesses on this?

Chris Briggs

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Dec 18, 2009, 11:21:15 AM12/18/09
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Pull up the docs, go to NC-Verilog Simulator Help, then read the
section on Enabling Read, Write, or Connectivity Access to Simulation
Objects. Enabling read access should be sufficient.

-cb

hairyotter

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Dec 18, 2009, 1:13:22 PM12/18/09
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ncelab -access +r

Or, for more complete debug:
ncelab -access +rwc

On Dec 17, 6:32 pm, teacupfull business

General Schvantzkoph

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Dec 18, 2009, 2:29:15 PM12/18/09
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Sure it can. If you have NC you want to use the .trn format which is much
more efficient then vcd, use the recordvars task for .trn

$recordfile("sys_lp","compress");
$recordvars(sys_lp);

If you need to use vcd then it uses the standard Verilog dumpvars.

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