diff --git a/examples/intrinsics/knc.h b/examples/intrinsics/knc.h
index c9c622d7..33106b0d 100644
--- a/examples/intrinsics/knc.h
+++ b/examples/intrinsics/knc.h
@@ -3281,6 +3281,28 @@ static FORCEINLINE void __scatter_base_offsets64_i32(uint8_t *_base, uint32_t sc
   }
 }
 
+static FORCEINLINE void __scatter_base_offsets64_i64(uint8_t *_base, uint32_t scale, __vec16_i64 offsets,
+    __vec16_i64 value,
+    __vec16_i1 mask) { 
+
+  const __vec16_i32 signed_offsets = _mm512_add_epi32(offsets.v_lo, __smear_i32<__vec16_i32>((int32_t)INT_MIN));
+  __vec16_i1 still_to_do = mask;
+  while (still_to_do) {
+    int first_active_lane = _mm_tzcnt_32((int)still_to_do);
+    const uint &hi32 = ((uint*)&offsets.v_hi)[first_active_lane];
+    __vec16_i1 match = _mm512_mask_cmp_epi32_mask(mask,offsets.v_hi,
+        __smear_i32<__vec16_i32>((int32_t)hi32),
+        _MM_CMPINT_EQ);
+
+    void * base = (void*)((unsigned long)_base  + ((scale*(unsigned long)hi32) << 32) + scale*(unsigned long)(-(long)INT_MIN));  
+   
+    _mm512_mask_i32extscatter_epi32(base, match, signed_offsets, value.v_lo, _MM_DOWNCONV_EPI32_NONE, scale, _MM_HINT_NONE);
+    _mm512_mask_i32extscatter_epi32(base + sizeof(uint32_t), match, signed_offsets, value.v_hi, _MM_DOWNCONV_EPI32_NONE, scale, _MM_HINT_NONE);
+
+    still_to_do = _mm512_kxor(match,still_to_do);
+  }
+}
+
 static FORCEINLINE void // TODO
 __scatter_base_offsets64_i8(uint8_t *_base, uint32_t scale, __vec16_i64 offsets,
     __vec16_i8 value,
@@ -3362,14 +3384,14 @@ static FORCEINLINE void __scatter64_i32(__vec16_i64 ptrs, __vec16_i32 val, __vec
 */
 
 static FORCEINLINE void __scatter64_i64(__vec16_i64 ptrs, __vec16_i64 val, __vec16_i1 mask) {
+#if __INTEL_COMPILER < 1500
+  #warning "__scatter64_i64 is slow due to outdated compiler"
+  __scatter_base_offsets64_i64(0, 1, ptrs, val, mask);
+#else
   __vec16_i32 first8ptrs, second8ptrs;
   hilo2zmm(ptrs, first8ptrs.v, second8ptrs.v);
   __vec16_i32 first8vals, second8vals;
   hilo2zmm(val, first8vals.v, second8vals.v);
-
-#if __INTEL_COMPILER < 1500
-  #warning "__scatter64_i64 is not implemented!"
-#else
   _mm512_mask_i64extscatter_epi64 (0, mask, first8ptrs, first8vals, _MM_DOWNCONV_EPI64_NONE, 1, _MM_HINT_NONE);
   const __mmask8 mask8 = 0x00FF & (mask >> 8);
   _mm512_mask_i64extscatter_epi64 (0, mask8, second8ptrs, second8vals, _MM_DOWNCONV_EPI64_NONE, 1, _MM_HINT_NONE);