update doc

ibireme · ibireme · commit a3d4884bfb00 · 2025-03-07T01:56:28.000+08:00
diff --git a/README.md b/README.md
@@ -124,6 +124,10 @@ Note: the following functions may not generate shortest decimal representation,
 * emyg
 * erthink
 
+The following functions require SSE2 or AVX512, use `cmake .. -DARCH_NATIVE=ON` to enable them:
+* xjb_sse2
+* xjb_avx512
+
 -------
 
 ### String to Double (strtod)
