[libre-riscv-dev] [Bug 136] New: partitioned multiplier needs to be adapted to Dadda algorithm

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=136

            Bug ID: 136
           Summary: partitioned multiplier needs to be adapted to Dadda
                    algorithm
           Product: Libre Shakti M-Class
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: CONFIRMED
          Severity: enhancement
          Priority: ---
         Component: ALU (including IEEE754 16/32/64-bit FPU)
          Assignee: lkcl at lkcl.net
          Reporter: lkcl at lkcl.net
                CC: libre-riscv-dev at lists.libre-riscv.org
   NLnet milestone: ---

the wallace multiplier produces a 10-stage-long chain at 64-bit.
dadda tree multipliers use less gates.
https://github.com/jorisvr/gen_hdl_multiplier

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