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0fdae4322d
We cannot use BaseMemoryLibOptDxe since it uses SSE instructions, and some firmwares fail to properly maintain MMX register contexts across the timers. This results in exceptions when trying to execute primitives like CopyMem in timers (e.g. AIKDataWriteEntry). Reproduced on ASUS M5A97 with AMD FX8320 CPU. closes acidanthera/bugtracker#754