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README-migration.md: Added note about SDL_HasRDTSC removal.

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Fixes #8374.
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Ryan C. Gordon 2023-10-11 01:20:18 -04:00
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docs/README-migration.md
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@ -276,6 +276,8 @@ The intrinsics headers (mmintrin.h, etc.) have been moved to `<SDL3/SDL_intrin.h
SDL_Has3DNow() has been removed; there is no replacement.
SDL_HasRDTSC() has been removed; there is no replacement. Don't use the RDTSC opcode in modern times, use SDL_GetPerformanceCounter and SDL_GetPerformanceFrequency instead.
SDL_SIMDAlloc(), SDL_SIMDRealloc(), and SDL_SIMDFree() have been removed. You can use SDL_aligned_alloc() and SDL_aligned_free() with SDL_SIMDGetAlignment() to get the same functionality.
## SDL_events.h