(r3) MeetingJanuary26 < P1076

P1076 Web>Vhdl2019MeetingMinutes>MeetingJanuary26 (revision 3) (raw view)~~EditAttach~~
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---+ P1076 January 26, 2012 Meeting Minutes
---++ Attendees:
   * Main.PeterFlake * Main.HansTiggeler * Main.DavidBishop * Main.JimLewis * Main.JarekKaczynski * Main.JohnShields

---++ Agenda:
   * Approve Jan 5 meeting minutes: Motion Jerry 2nd Peter
   * Look-Up Table
   * DPI
---++ Fixed and Floating Packages: Look-Up Table
   * New fixed and float packages to implement functions such sin, log, ... from math real
   * 3 versions of implementations 
      * Use math real
      * Use equation and stay in fixed/float
      * Use look up table
   * Tested all 3 in synthesis 
      * Equation work to avoid division
      * Look up table work to minimize size of ROM
   * Division of long number - look up table of reciprocal
   * Proposed additions to fixed_generic_pkg and float_generic_pkg 
      * floor - integer closest to 0
      * Ceil -
      * Precision - number of bits to keep in the fraction
   * AI: David to add documentation linked through the Collected Requirements list
---++ DPI
   * Proposal on TWIKI progressing
   * Issue from John Shields: Types like natural cannot be differentiated from integer on subprogram calls
   * Review of current proposal on Collected Requirements
   * Can the C side of DPI see updates on signals? no 
      * Everything on the DPI side is as if it were passed by value
   * Important that the C code is reentrant
   * Peter to update per issues in discussion
---++ Encryption
   * Jerry and John: Working on syncing up with IEEE P1735

---++ Next Meeting Date (proposed):

Thursday February 16, 8 am Pacific
Topic revision: r1 - 2020-02-17 - 15:36:20 - TWikiGuest
P1076