[libre-riscv-dev] [Bug 101] New: IEE754 pipeline "go_die" (Computation Unit Cancellation) needed

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=101

            Bug ID: 101
           Summary: IEE754 pipeline "go_die" (Computation Unit
                    Cancellation) needed
           Product: Libre Shakti M-Class
           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: ---

scoreboard-style pipelines do not "stall" however they do need cancellation.
this really needs to be a global signal that goes to all stages, telling
the pipeline that it should no longer be sending data with a certain muxid
further down the pipe(s).  this probably best as unary because, clearly,
multiple cancellations may occur in any given clock.

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