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Old 09-20-2005, 07:28 AM
gallen
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Default Re: Modelsim XE, what's the latest version?

I can't really recommend IVI. It it's definitely not easy to use or
particularly stable. I'm also not a tremendous fan of Icarus. The
last version I used 0.8.1 (I think) had a memory leak so the
performance was abysmal. It was far outpaced by the slowed down
modelsim XE.

If you can't spend money, I recommend gpl cver and gtk wave. They
aren't great, but they'll do the trick. I find cver to be slower than
modelsim by a fair bit, but it's faster once the limit is exceeded.

http://www.pragmatic-c.com/gpl-cver/
http://home.nc.rr.com/gtkwave/

I must give the warning that gtkwave loads the whole vcd into memory
and then some, so if you're opening 300MB VCD files, you really need to
have at least 1 GB of memory (maybe more). I know I have 768MB and it
thrashed until I killed it.

There is no way you are going to get a free tool with a gui like
modelsim. Heck, most commercial tools don't have guis like modelsim.
As far as I know vcs and ncverilog don't have nice guis. With those
tools you do everything on the command line.

Good luck,
Arlen

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