[comp.lang.vhdl] Question on version of VHDL.

th@teda.UUCP (Tivonne Ha) (03/19/91)

I would appreciate your help in answering this question:
I'm in charge of developing a software to interface from our shematic
capture database to put out a VHDL design description.
People here at my workplace would ask me occasionally:
"Is there a specific version of VHDL that we support?"

To my knowledge, there's no VHDL version at all.  I always refer to the
IEEE std 1076-1987 LRM as the point of reference.
Am i correct in saying no version?  If not, could you then tell me what 
is the latest version of VHDL that the industry normally would refer to?

Thanks in advance,
Tivonne

-- 
Tivonne Ha			UUCP:  ...!{decwrl,sun}!teda!th
Teradyne EDA, Inc. -- 5155 Old Ironsides Drive, Santa Clara, Ca 95054
Aste'rix:  "Je suis las, las, las..."
Obe'lix (a` Ide'fix): "Mais qu'est-ce-que c,a veut dire: 'Je suis la la la???'"

davidb@inmet.inmet.com (03/20/91)

/* Written  4:35 pm  Mar 18, 1991 by th@teda.UUCP in inmet:comp.lang.vhdl */

>I would appreciate your help in answering this question: I'm in charge
>of developing a software to interface from our shematic capture
>database to put out a VHDL design description.  People here at my
>workplace would ask me occasionally: "Is there a specific version of
>VHDL that we support?"

>To my knowledge, there's no VHDL version at all.  I always refer to
>the IEEE std 1076-1987 LRM as the point of reference.  Am i correct in
>saying no version?  If not, could you then tell me what is the latest
>version of VHDL that the industry normally would refer to?

You are correct, technically.  This does not keep people from mixing
implementations and the language.

Usually, I have found that people talking about a "version" of VHDL
are referring to a specific implementation, or a version of an
implementation.  This is especially important (to them) if they have a
subset implementation; then, if your tool uses parts of the language
that their tool does not implement, they are in trouble.

I have found the best answer is simply to ask what they mean, or what
they consider to be a version.  They may think you are somewhat dumb,
but this is better than miscommunication.

						Dave Barton
						barton@i2wash.com