Andreas Kling 1366557094 AK+LibC: Always use REP MOVSB/STOSB for memcpy()/memset() ...

There's no great advantage to using MMX instructions here on modern
processors, since REP MOVSB/STOSB are optimized in microcode anyway
and tend to run much faster than MMX/SSE/AVX variants.

This also makes it much easier to implement high-level emulation of
memcpy/memset in UserspaceEmulator once we get there. :^)

2020-07-27 15:54:39 +02:00

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