errata/341: PROPOSAL - How are two dimensional arrays of regs to be treated in VPI?

From: etf@boyd.com
Date: Fri Jan 30 2004 - 06:53:25 PST

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    In order to reconcile a 2 dimensional array of regs,
    formerly known as a memory, with arrays of regs with more
    dimensions, I propose the following changes:

      Make the following changes to section 26.6.9:

       - Change the definition enclosure "memory" to
         a reference enclosure "reg array"
       - Change the definition enclosure "memory word"
         to a reference enclosure "reg"
       - Add a label "vpiMemory" to the 1 to many iteration
         from module and scope.
       - Add a label "vpiMemoryWord" to the 1 to many iteration
         from memory to memory word.
       - Add a property to memory:

         -> is a memory
         bool: vpiIsMemory

      Make the following changes to section 26.6.1:

       - Change the reference enclosure "memory" to "reg array"
       - Add a "vpiMemory" label to the 1 to many iteration to
         memory.

      Make the following changes to section 26.6.25:

       - Remove the 2 memory word reference enclosures.

      Make the following changes to section 26.6.42:

       - Remove the memory reference enclosure.

      Make the following changes to section 26.6.43:

       - Remove the memory reference enclosure.

      Add the following to annex G:

       - Immediately after vpiModPathHasIfNone (line 482):

         #define vpiIsMemory 73 /* A reg MDA is a memory */

    See the diagrams at
      http://www.verilog-2001.com/pli_errata/
      See ptf341.pdf

    Notes from proposer:

     - The #define in the include file (annex G) may need
        to be reconciled with other PTF items.

    http://wa.boyd.com/cgi-bin/issueproposal.pl?cmd=view&database=default&pr=341

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