VHDL Issue Number:      0119
Classification:         Language Definition Problem
Language Version:       VHDL-87
Summary:                "Conditional" used when "concurrent" is meant.
Related Issues:         None.
Relevant LRM Sections:  9.5, 8.3.1
Key Words and Phrases:  Concurrent Signal Assignment Statement,
                        Conditional Signal, Assignment Statement,
                        Transport Delay Model
Current Status:         ISAC-Approved
1076-1993 Disposition:  Closed (All Issues Completely Addressed)
Disposition Rationale:  Section 9.5 was updated.
Superseded By:          N/A
-----------------------
Date Submitted:         1989/06/21
Author of Submission:   Ken Scott
Author's Affiliation:   Vantage Analysis Systems, Inc.
Author's Post Address:  42840 Christy St., Suite 201
                        Fremont, CA   94538
Author's Phone Number:  (415) 659-0901
Author's Fax Number:    
Author's Net Address:   N/A
-----------------------
Date Analyzed:          1990/10/08
Author of Analysis:     Chuck Swart
Revision Number:        $Revision: 1.9 $
Date Last Revised:      $Date: 1995/08/03 18:45:35 $


Description of Problem
----------------------
In the 7th paragraph of chapter 9.5, this statement is restricting the
translation of 'transport' signal assignments to only conditional signal
assignments:

       "If the option transport appears in the CONDITIONAL signal
        assignment, then the reserved word transport appears in
        every signal assignment statement in the process statement;"


Proposed Resolution
-------------------
If you replace 'conditional' with 'concurrent', you get the desired meaning:

       "If the option transport appears in the CONCURRENT signal
        assignment, then the reserved word transport appears in
        every signal assignment statement in the process statement;"


VASG-ISAC Analysis & Rationale
------------------------------
The author's analysis is correct.


VASG-ISAC Recommendation for IEEE Std 1076-1987
-----------------------------------------------
The above re-wording of the paragraph should be assumed.


VASG-ISAC Recommendation for Future Revisions
---------------------------------------------
The above re-wording of the paragraph should be included.