# Tuesday 28th November 17:00 UTC

* Previous week's notes: [[meetings/sync_up/sync_up_2023-11-21]]
* Next day's notes: [[meetings/sync_up/sync_up_2023-11-29]]
* Next week's notes: [[meetings/sync_up/sync_up_2023-12-05]]

# Main Agenda

* reminder to everyone to fill in their links to bugreports *now*
  (right now) on the *previous* meeting if not already
  done so. you are responsible for maintaining your
  own "section" notes in each minutes.
  format: `[bug #NNNN](https://bugs.libre-soc.org/show_bug.cgi?id=NNNN)`
* reminder of Dec 1st deadline for FOSDEM 2024 talk proposal
  submissions. abstract can be very short, edit later. do not leave it to
  last minute! new system in place.
  [bug #1070](https://bugs.libre-soc.org/show_bug.cgi?id=1070)
  <https://lists.libre-soc.org/pipermail/libre-soc-dev/2023-November/005798.html>
* reminder of **only three months** (13 weeks) until march 1st deadline
  for completion of cavatools and cryptoprimitives. **all tasks scope must be
  cut right back, do not spend hours "attempting to struggle" out of a
  futile "i must achieve it alone" ethos: ASK FOR HELP IMMEDIATELY**
* Clarification of the scope of new grants.
  See [[meetings/dmitry_2023-11-24]] notes for more context.

Meeting notes:

- Deprecated SimpleV prefix format from 2019: <https://libre-soc.org/simple_v_extension/sv_prefix_proposal/>
- RISC-V example extension: <https://github.com/riscv-software-src/riscv-isa-sim/blob/master/customext/cflush.cc>
- The first step is to make modifications to `sv_analysis.py` to classify the RISC-V instructions.
  <https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/sv/sv_analysis.py;hb=HEAD>
- Standard RISC-V opcode format: <https://github.com/riscv/riscv-opcodes>

- [bug #980](https://bugs.libre-soc.org/show_bug.cgi?id=980)
  - A lot of work, need to focus on the basics
  - Issues with current Python pseudo-code compiler:
    - pseudocode is full of python-isms such as some variables are
    python ints and some are selectableint and some are strings etc.
    - plus, the parser currently has wrong operator precedence
    [bug #1082](https://bugs.libre-soc.org/show_bug.cgi?id=1082).
  - Suggested minimal goal for bug #980 is:
    - Use AST (operands, flow, etc. as we already do for generated
    Python func's) and a custom visitor function to convert to C code. 
    - Generate C functions which can be compiled without errors.
    - Generated functions can be run from a main function to confirm results.
    - Jacob suggested using `maddedu` as a benchmark, since it has
    non-trivial pseudo-code.
    - 


# Dmitry

* Update [bug #1126](https://bugs.libre-soc.org/show_bug.cgi?id=1126)
to include git commit descriptions.
* Check whether RISC-V have their own way of describing the instructions
  (likely they do).
* Familiarise yourself with
[svanalysis.py](https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/sv/sv_analysis.py;h=21778ad02d78c4f7ef5b6df93e096f4abbe365ad;hb=HEAD),
as we will need a similar tool for RISC-V.
* Check what RISC-V support in binutils looks like. *Needed for confirming
the details of the RISC-V binutils grant*.

# Sadoon

- Work together with Shriya (with Luke's asssitance) on Poly1305/ED25519.
- Submitted talk proposals for FOSDEM 2024 

# Jacob

- [bug #1169](https://bugs.libre-soc.org/show_bug.cgi?id=1169)
Completed the necessary bits of mmap for ELF task.

# David

-

# Andrey

- Check with Dmitry on git commit descriptions (bug #1126).
Once comment made, add to [[HDL_workflow]] documentation.

# Luke

* [bug #672](https://bugs.libre-soc.org/show_bug.cgi?id=672)
  long story, pospopcount needs bmatflip (aka vgbbd in VSX)
  but also needed sv.bc fixing
  [bug #1215](https://bugs.libre-soc.org/show_bug.cgi?id=1215)
  which is related/similar to the DDFFirst issue on scalar source/dest
  [bug #1183](https://bugs.libre-soc.org/show_bug.cgi?id=1183)
  which jacob also noted for sv.cmpi/ff needed on bigmul.
* Guide Dmitry on svanalysis.py.
* Guide Shriya in Poly1305
  [bug #1157](https://bugs.libre-soc.org/show_bug.cgi?id=1157)
  and ED25519 [bug #1151](https://bugs.libre-soc.org/show_bug.cgi?id=1151)
  to assist Sadoon.
  
# Shriya

- Work together with Sadoon on Poly1305 and ED25519.

# Tobias

* created fosdem talk bug, [bug #1213](https://bugs.libre-soc.org/show_bug.cgi?id=1213)

[[!tag meeting2023]]
[[!tag meeting_sync_up]]