2020_1203_Meeting < P1076

P1076 Web>Vhdl202X_MeetingMinutes>2020_1203_Meeting (2020-12-08, UnaiCorral) (raw view)EditAttach

---+ P1076 Minutes from December 3, 2020
---++ Attendees
   * Peter Flake, Unai Martinez-Corral, Tristan Gingold, Jim Lewis

---++ Meeting Discussion
   * DPI
      * Registration of foreign subprograms
         * Can allow function, pointer to function or any of them.
         * Should not require the (dummy) VHDL body of foreign functions.
         * Can not require the definition of foreign functions, unless actually used.
      * Calling convention
         * Keyword IMPORT_C or VFFI.
         * Allow multiple registrations for different tools.
      * Deferred definition of external subprograms
         * Allow _prototype_ ?
         * Name mangling ?
      * Interface modes and classes
         * in, out, inout
         * constant, variable, signal
         * support wait ?
      * Types
         * fat pointer for unconstrained arrays
         * fat pointer for accesses to unconstrained arrays
            * Note: in GHDL fields data and bounds/range are in a different order within the struct. That's because of slices.
         * Memory layout
            * to vs downto
            * bit ordering within bytes: reverseBitsInBytes
               * vfficharArr2bitArr, vffibitArr2charArr
            * multidimensional arrays

---++ Next Meeting
   * December 17 at 11 am

---++ Comments

<br />%COMMENT%

Topic revision: r1 - 2020-12-08 - 11:23:43 - UnaiCorral

P1076