[Libre-soc-bugs] [Bug 617] add SVP64 predication to TestIssuer

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=617

--- Comment #8 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
cesar, my thoughts are that running the pipelines with zero inputs is not
useful, and that instead this is more useful and less... puzzling:

       if (src_zeroing and ((1<<srcstep) & srcmask) == 0) or
          (dest_zeroing and ((1<<dststep) & srcmask) == 0)):
            result = 0
            Condition_Register = EQzero
       else:
            RA = get_register_RA
            RB = get_register_RB
            result, Condition_Register = calc_operation(RA, RB)

http://lists.libre-soc.org/pipermail/libre-soc-dev/2021-March/002226.html

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