• Zhi An Ng's avatar
    [arm] Refactor arm disassembler for special condition · e363ee3c
    Zhi An Ng authored
    The SpecialValue field used in the disassembler covers too wide a range,
    this causes some duplication in the disassembler of instructions like
    mov, since the SpecialValue includes a bit used for the immediate.
    
    Attempt to refactor and follow the decoding guide given in the
    architecture manual [0], F4.1 A32 instruction set encoding, with the
    eventual goal for removing the duplicated instruction disassembly.
    
    [0] ARM DDI 0487F.b ARMv8 A32 instruction set
    
    Bug: v8:10933
    Change-Id: Iddf4df317f9a5b29be2544ad2f9f93180e9bcdfc
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2497395
    Commit-Queue: Zhi An Ng <zhin@chromium.org>
    Reviewed-by: 's avatarJakob Kummerow <jkummerow@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#70775}
    e363ee3c
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