P1076 June 27, 2013 Meeting Minutes

Attendees:

• JimLewis * PeterFlake * CliffordWalinsky * RyanHinton * JarekKaczynski

Agenda:

• Revisit VHDL-2008-MP items (just 2 to revisit, notes from last meeting copied here)
• Review VHDL-2008-TBV 6, 9, and 13
• Check closure on AI from review lists.
• See these items in the collected requirements list

Review of VHDL-2008-MP

• MP - Remove white space requirement in physical literals
  • A small issue, not necessarily worth doing this revision.
  • Ambiguity if have a physical literal identifier named 'e' and bit string literals
  • Confusing for those who work in mixed language environments.
  • SystemVerilog requires no space with their physical literals.
  • Drop for this revision

• MP - Longest static prefix issue with loops
  • If Globally static, may be solvable. Cliff to continue looking into it.

Review of VHDL-2008-TBV 6, 9, and 13

• TBV 6 - Assign image values for identifier-based enumeration type values
  • VHDL term image does not have any meaning here.
  • Assuming it wants to impact the state mapping of a statemachine
  • type StateType is (S0 := 3, S1 := 5, S3 :=6) ;
  • Does it redefine position values (is it ok having 'pos be sparse?) or
  • is it some new thing with its own version of 'pos and 'val
  • Historically its has been done with attributes.
    • attribute enum_encoding of TxStateType : type is "0011 0110 1100 0101 1010 1001" ;
  • Could instead create new attribute based on integer_vector that would accomplish the same thing.
    • Make the attribute a standard attribute.
  • Is it worth doing?
    • Ryan - probably would not use.
    • Drop

• TBV 9 - Expected Value Detectors
  • Create a verification library / package.
  • Need further information on requirement.
  • Drop for lack of information.

• TBV 13 - Object Orientation
  • Suave?
    • Is there a Suave pre-compiler that would translate suave code into regular VHDL?
  • Protected Types?
    • Have a fairly complete proposal
  • What is the target application?
  • Used by system level designers?
  • ADA style vs C style?
    • System level designers commonly use C
  • Can we solve this by binding to C and/or ADA?
    • Does the DPI proposal cover this?
  • Add to proposal list and address during ranking of proposals.

Review and Approve Meeting Minutes:

• Motion: Jerry 2nd: Ryan

Next Meeting Date:

Thursday July 18, 8 am Pacific