[Libre-soc-bugs] [Bug 238] POWER Compressed Formal Standard writeup

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=238

--- Comment #44 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #43)


> ld r10, 0x10(r1)
> would be encoded using immediate (0x10 + 256) >> 3 == 0x22
> and
> ld r10, -0x58(r1)
> would have immediate (-0x58 + 256) >> 3 == 0x15

took me a while to realise you inverted the calculation, there.  the same
startpoint would work for lw/stw except >>2

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