P1076 February 21, 2013 Meeting Minutes

Attendees:

• JimLewis * PeterFlake * JarekKaczynski *

Agenda:

• Review VHDL-2008-Performance remaining list items
• Review VHDL-2008-MP remaining list items
• Review Accellera TC remaining list items
• See these items in the collected requirements list

Performance List

• Perf 6: Remove deprecated constructs: Not practical. Reject
• Perf 7: Clocks and Zero Delay ordering of signals. Reject

Accellera TC List

• SAB 3 and 4 subsumed by Random Simulus proposal
• SAB 5, 6, 7, 8, 9, and 10 subsumed by Functional Coverage proposal
• SAB 15: Semaphore data structure. Implement in a library.
  • Provides: New(#keys), Get(#keys), Put(#keys), Try_Get(#keys)
  • Use Protected type is the key counter & implement the rest using regular functions and procedures.
  • try_get is a function, the others are procedures.
  • New returns the handle to the object - could be an integer index value
  • What do we need it for? Multiple items trying to use one resource. Software - network access to a printer
  • Typically only one key. Default for put and get is 1 key.
  • Waiting queue is first in, first out.
  • Should be deterministic.
• Perf 9: Remove incremental port binding, groups, pulse rejection limit: reject
• Perf 10: Remove guarded blocks and signals: reject
• Env 2, 3: DPI Proposal
• Env 1, 4: Foreign / Cross Language Model Instances
  • Type mapping per DPI proposal
  • Formalize what tools are already doing.
  • Action item: Jerry and Cliff to collaborate on this with Peter
  • What types need to be exchanged between SV and VHDL?
• Env 6: Extended HW functions like DW (mux, decoders, adders). Do as libary.
• Env 8: Macros
  • Can be very complicated. Esp for debuggers
  • In C a macro can replace the word "begin" with "{"
  • Macro is alot like a subprogram with anonymous types on the interface
• Env 9: Conditional compilation: Have proposal without agreement on it.

Action Items:

• Jerry, Cliff, Peter to collaborate on ENV 1, 4

Review and Approve Meeting Minutes:

• Motion: Peter 2nd: Jerry

Next Meeting Date (proposed):

Thursday March 7, 8 am Pacific