1 files changed, 17 insertions, 0 deletions
diff --git a/sys/libn/memory.c b/sys/libn/memory.c
index 8081569..7a0ca30 100644
--- a/sys/libn/memory.c
+++ b/sys/libn/memory.c
@@ -147,3 +147,20 @@ mem·freearena(mem·Arena *a)
 
     a->heap.free(a->impl, a);
 }
+
+// -------------------------------------------------------------------------
+// Generalized memory helpers
+
+void
+memset64(void *dst, uint64 val, uintptr size)
+{
+    intptr i;
+
+    for (i = 0; i < (size & (~7)); i += 8) {
+        memcpy((byte*)dst + i, &val, 8);
+    }
+
+    for (; i < size; i++) {
+        ((byte*)dst)[i] = ((byte*)&val)[i&7];
+    }
+}