[ What follows in NOT a paid advertisement.  I've received no money,
     no sexual favors, :^(, no nothing from anyone for this; it's purely
     my own personal professional opinion.   - John ]

 Editor's Note: I would like to publically applaud Chronologic Simulation's
 approach to doing business.  Most EDA vendors put special clauses in their
 licencing agreements to forbid customers from doing comparitive benchmarks
 on their software.  Also, most EDA vendors *say* that the vast majority of
 their customers are repeat customers, they have very few bugs in their
 products and those bugs they do have are fixed quickly -- you know, the
 usual happy customer marketing drivel that's unconfirmable and perfect for
 salesmen to use to convince you to buy their products.

 In contrast, Chronologic Solutions actively encourages everyone to benchmark
 their products.  Now they're offering an upgrade from Verilog-XL to their 
 high speed Verilog simulator (VCS) for what works out to be $5000 ($1000 plus 
 $4000 maintanance) with a limit of one upgrade per engineering lab.  Through
 these *actions* Chrono is clearly showing that the vast majority of their
 customers are repeat customers.  They don't make money selling at this price;
 their *actions* show they're confident they'll make money when you return to 
 buy a *second* VCS licence.  They don't have a large aggressive sales staff
 out to give you the hard sell; they let the benchmarks speak for themselves.
 Also, because Chrono's a small company; you're not four beaureaucratic layers
 away from the guy who wrote the code when you report a problem.  Overall, I 
 see this as a company of engineers who wanted to make a screaming fast
                          Verilog simulator -- not businessmen out to make a
 Synopsys VSS  ##  1.0      quick buck in the EDA industry.  Because
 Mentor        ##  1.1         Chronologic Solutions sells, in my opinion,
 Viewlogic     ####  2.0     a well supported kick-butt Verilog simulator,
 Silicon Auto  ####  2.1        I'm recommending you take advantage of
 Cadence Turbo #######  3.5    this upgrade offer before the January 31st
 Vantage       ########  4.1     deadline.  They're at 1-800-VERILOG.
 Model Tech    ########  4.1
 Cadence Leap  ###########  5.4               - John Cooley
 Simucad SILOS ###########  5.6                 the ESNUG guy
 Racal-Redac   #################  8.3
 Chronologic   ######################################################  27.0 !

   Relative Speed Benchmark of HDL Simulators (June 14, 1993 EE Times)