Sort boot files (#260)

1 files changed, 23 insertions, 0 deletions

diff --git a/src/boot_O2/__osMemcpy.c b/src/boot_O2/__osMemcpy.c
new file mode 100644
index 000000000..2e25b23f0
--- /dev/null
+++ b/src/boot_O2/__osMemcpy.c
@@ -0,0 +1,23 @@
+#include "global.h"
+
+void* __osMemcpy(void* dst, void* src, size_t size) {
+    u8* _dst = dst;
+    u8* _src = src;
+    register s32 rem;
+
+    if (_dst == _src) {
+        return dst;
+    }
+    if (_dst < _src) {
+        for (rem = size--; rem != 0; rem = size--) {
+            *_dst++ = *_src++;
+        }
+    } else {
+        _dst += size - 1;
+        _src += size - 1;
+        for (rem = size--; rem != 0; rem = size--) {
+            *_dst-- = *_src--;
+        }
+    }
+    return dst;
+}