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- From: gotom@hpysoln.tky.hp.com (Masaharu Goto)
- Date: Wed, 23 Dec 1992 17:12:10 GMT
- Subject: Re: wire primitives in VHDL
- Message-ID: <4380003@hpysoln.tky.hp.com>
- Organization: YHP Hachioji IT, Tokyo Japan
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!hpscit.sc.hp.com!hplextra!hpcc05!hpyhde4!hpysoln!gotom
- Newsgroups: comp.lang.vhdl
- References: <1992Dec22.014551.24293@ole.cdac.com>
- Lines: 14
-
-
- I am not an expert on the subject, and not sure if I can give you an
- appropreate idea. If my information is wrong, please ignore. I have no
- confidence on this, just an idea.
-
- But the difference between Verilog and VHDL seems like Port Collapsing.
- Verilog manual says it Verilog-XL simulator collapses port connections
- whenever possible. And no special declaration is needed for collapsing nets.
- While,(though I am not too sure) in VHDL , if you want to collapse nets
- you need to declare the net type of "Buffer". So, I imagine one of the
- bidirectional signal has to be "Buffer" type. (Do I understand correct?
- VHDL expert, please correct if I am wrong.)
- However, an example of "Buffer" usage I've seen is different from your
- situation.
-