[libre-riscv-dev] [Bug 173] dynamic partitioned "shift"

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=173

Jacob Lifshay <programmerjake at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |programmerjake at gmail.com

--- Comment #7 from Jacob Lifshay <programmerjake at gmail.com> ---
one important point to remember is that we need to be able to cheaply implement
the shift instructions, on RISC-V, at least, the shift amount's high bits are
specifically ignored, so shifting by n bits actually gives the result of
shifting by n % bit_len where bit_len is the number of bits in the
field/register being shifted.

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