[Libre-soc-isa] [Bug 817] New: Big Integer Math (sv.adde, sv.subfe, sv.madded, 128 by 64-bit -> 64-bit div/rem, maybe more...)

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=817

            Bug ID: 817
           Summary: Big Integer Math (sv.adde, sv.subfe, sv.madded, 128 by
                    64-bit -> 64-bit div/rem, maybe more...)
           Product: Libre-SOC's first SoC
           Version: unspecified
          Hardware: Other
               URL: https://libre-soc.org/openpower/sv/biginteger/
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: Specification
          Assignee: lkcl at lkcl.net
          Reporter: programmerjake at gmail.com
                CC: libre-soc-isa at lists.libre-soc.org
   NLnet milestone: ---

Couldn't find a bug for this so made one.

https://libre-soc.org/openpower/sv/biginteger/

Giant Discussion on mailing list:
https://lists.libre-soc.org/pipermail/libre-soc-dev/2022-April/004761.html

Video lkcl made on draft version:
https://youtu.be/8hrIG7-E77o

My comments on that video (basically looks good except that division uses
sv.madded and sv.subfe not sv.msubed and sv.subfe):
https://libre-soc.org/irclog/%23libre-soc.2022-04-21.log.html#t2022-04-21T19:38:17

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