allow large shiftable immediates to be encoded #13
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ARM supports large immediates in instructions' `operand2` field if they can be made up of 8-bit values left shifted by a multiple of two. see https://alisdair.mcdiarmid.org/arm-immediate-value-encoding/ for more details.
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ARM supports large immediates in instructions'
operand2field if they can be made up of 8-bit values left shifted by a multiple of two.see https://alisdair.mcdiarmid.org/arm-immediate-value-encoding/ for more details.