X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/6c506d8916fb114675e93d0e2cb20831d4022294..d1b1c8d9119229dbeed06cd252917e54a1cb77f6:/lunaix-os/arch/i386/klib/fast_str.c?ds=sidebyside

diff --git a/lunaix-os/arch/i386/klib/fast_str.c b/lunaix-os/arch/i386/klib/fast_str.c
new file mode 100644
index 0000000..46dcf28
--- /dev/null
+++ b/lunaix-os/arch/i386/klib/fast_str.c
@@ -0,0 +1,26 @@
+#include <klibc/string.h>
+
+void*
+memcpy(void* dest, const void* src, unsigned long num)
+{
+    if (!num)
+        return dest;
+        
+    asm volatile("movl %1, %%edi\n"
+                 "rep movsb\n" ::"S"(src),
+                 "r"(dest),
+                 "c"(num)
+                 : "edi", "memory");
+    return dest;
+}
+
+void*
+memset(void* ptr, int value, unsigned long num)
+{
+    asm volatile("movl %1, %%edi\n"
+                 "rep stosb\n" ::"c"(num),
+                 "r"(ptr),
+                 "a"(value)
+                 : "edi", "memory");
+    return ptr;
+}
\ No newline at end of file