2014_MeetingJuly10 < P1076

P1076 Web>Vhdl2019MeetingMinutes>2014_MeetingJuly10 (2020-02-17, JimLewis) (raw view)EditAttach
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---+!! P1076 July 10, 2014 Meeting Minutes
---++!! Attendees:
   * Main.JimLewis * Main.PeterFlake * Main.CliffordWalinsky * Main.StevenDovich
---++!! Agenda:

%TOC%

---++ Action Item Review

*Items Discussed*
   * Need more reviewers of matrix math package 
      * David sent a list of potential changes - Jim to enter it on TWIKI
   * Jim - 2109 - Requests semaphore implementation via a protected type 
      * Requires wait inside of a protected type
      * ?Requires signal inside of a protected type?
      * Also interested in a resolution function based semaphore implementation
      * Took a look at 2109 during meeting and discussed issues.
      * Steve
   * Martin - 2033 - Increment operator with modulo wrap around. 
      * Much discussion on the reflector
      * What did ADA do for modulo based math?
      * Peter to look at this too from a language design side.
   * Peter - looking at conditional expressions 
      * Concluded with 2008 conclusion that need different keyword.
      * When has complicated waveform expressions that prevent simplification
      * Should we allow when in initializations - potential for confusion.
      * Should we consider different syntax, such as "if else" as was suggested in 2008 
         * Potentially leads to confusion?
         * Removes some of hamming distance between syntax.
         * Cliff to look at parsing issues of doing this
      * Anonymous types could help: Condition[boolean, anonymous, anonymous return anonymous]

<strong>Items For a Future Meeting<br /></strong>
   * Ryan: Arbitrary width real: see [[2012_MeetingNovember8][Nov 8 2012 meeting]]
   * Open - Multi dimensional Array restructuring: Array &lt;--&gt; Matrix Transformations [[2012_MeetingJuly19]] [[MeetingDecember15]] 
      * Matlab has built-in reshape functions
      * In VHDL - explicit vs implicit defined operator
      * David Bishop: Requiring an implicit operator could delay implementations
      * Can this be handled by anonymous types on interfaces or generics on a package?
      * Language facility for creating implicit operators?
   * Ryan - Slicing Multidimensional Arrays (FT15) maybe related to above [[2012_MeetingMay24]]
   * David Bishop: Bugzilla 17 - add_carry in numeric_std as well as fixed/floating packages 
      * In the fixed point package, but not floating point package.
      * Not in numeric_std. Add for consistency?
   * David Bishop: Bugzilla 15 - Should numeric_bit/std have resize with size_res parameter? 
      * David proposed it for consistency with the fixed and floating point packages
   * David Bishop - 262 - Fixed Generic Pkg and checking valid range
   * Jim - Mark bugzillas for which we have a proposal with that status
   * Jim - Table driven modeling via protected types [[2012_MeetingMay10]]
   * OPEN - 2026 - Upward propagating Generics. 
      * Would an external name reference to a constant accomplish some of the intent here?
      * An "OUT" generic would need to have similar constraints to the external name usage.
      * One use models: Out generic of one design connecting to in generic of another.
      * Need other use models
   * Open - technical leader for 1076.6 activities? 
      * std_logic_1164 uses 1076.6 attribute "RTL_SYNTHESIS_OFF" and "RTL_SYNTHESIS_ON"
---++ Ranking Criteria
   * Rank based on need 
      * Item needs to be fixed
      * Useful for an application
   * Rank based on complexity 
      * How hard to implement
   * Noted several items in Collected Requirements as Must Do
   * AI: Jim: Create ranking sheet.
---++ Review and Approve Meeting Minutes:
   * Motion: Steve 2nd:Cliff
---++ Next Meeting: Thursday [[2014_MeetingJuly24][July 24, 2014]] 8 am Pacific
---+++ Previous Meeting: Thursday [[2014_MeetingJune26][June 26, 2014]]
Topic revision: r3 - 2020-02-17 - 15:36:13 - JimLewis
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