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These are needed for the xlrbr CRC32 instructions which pre-XOR the data into the CRC state before the instruction is executed, making the zlib crc32 and QEMU crc32c implementations inappropriate. https://github.com/riscv/riscv-bitmanip/releases/download/v0.93/bitmanip-0.93.pdf Signed-off-by: James Wainwright <james.wainwright@lowrisc.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20260320134254.217123-2-james.wainwright@lowrisc.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>