AArch64: Change rax1 shift to rotate, or to xor #6445
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ryanmkurtz
added
Feature: Processor/AARCH64
Status: Triage
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As part of a research project testing the accuracy of the sleigh specifications compared to real hardware, we observed an unexpected behaviour in the rax1 instruction for AARCH64. According to Section C7.2.217, the expected behaviour is a single-bit rotate, followed by an exclusive OR. While the current behaviour instead performs a single-bit shift, followed by a non-exclusive OR.