[libre-riscv-dev] [Bug 342] New: formal proof of soc.fu.compunits.FunctionUnitBaseSingle needed

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Sat May 23 23:57:30 BST 2020


            Bug ID: 342
           Summary: formal proof of
                    soc.fu.compunits.FunctionUnitBaseSingle needed
           Product: Libre-SOC's first SoC
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: Source Code
          Assignee: lkcl at lkcl.net
          Reporter: lkcl at lkcl.net
                CC: libre-riscv-dev at lists.libre-riscv.org
   NLnet milestone: ---

we need a formal proof of both MultiCompUnit and FunctionUnitBaseSingle.
a formal proof of the ALU that is used is *not* necessary, so a very
basic (stub) ALU can be created and used.

however, the proof needs to be written to test the following:

* 1 to 3 src input operands
* 1 to 2 dest operands
* with *and without* zero_a capabiltiy
* with *and without* immediate capability

so that's actually quite a lot of combinations: 3x2x2x2

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