[Libre-soc-bugs] [Bug 1177] revert unauthorized change to pseudocode language

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1177

--- Comment #9 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
class fixedarith:
    @inject()
    def op_addi(self, RA):
        RT = GPR.getz(_RA) + self.EXTS(SI)
        return (RT,)

ok. it can be done by setting all "ok" flags in all inputs
to FALSE, followed by modifying SelectableInt to set
data.ok=True in its constructor and in all math operations.

https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/decoder/selectable_int.py;hb=HEAD

it can go into merge and eq.

FieldSelectableInt is not necessary as we never return FSI from
any operations. but worth keeping an eye on.

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