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authoraqua <aqua@iserlohn-fortress.net>2022-03-28 20:03:38 +0300
committeraqua <aqua@iserlohn-fortress.net>2022-08-12 10:13:59 +0300
commitedf9e71e2a7b6b89775c29cf28c19c6b89992c25 (patch)
tree3adbf944d9e47a743063487c4facb7eed1fbdee0 /lib/memcpy.c
downloadkernel-edf9e71e2a7b6b89775c29cf28c19c6b89992c25.tar.xz
Initial commit
x86 kernel that prints a hello world message to com1
Diffstat (limited to 'lib/memcpy.c')
-rw-r--r--lib/memcpy.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/memcpy.c b/lib/memcpy.c
new file mode 100644
index 0000000..c648501
--- /dev/null
+++ b/lib/memcpy.c
@@ -0,0 +1,20 @@
+/**
+ * The memcpy() function copies n bytes from memory area src to memory area dest. The memory areas must not overlap.
+ * @param dest
+ * @param src
+ * @param n
+ * @return
+ */
+void *
+memcpy(void *restrict dest, const void *restrict src, unsigned n)
+{
+ char *pDest = (char *)dest;
+ const char *pSrc = (const char *)src;
+
+ while (n) {
+ *(pDest++) = *(pSrc++);
+ --n;
+ }
+
+ return dest;
+} \ No newline at end of file