1 files changed, 11 insertions, 0 deletions
diff --git a/ext/ed25519-amd64-asm/fe25519_unpack.c b/ext/ed25519-amd64-asm/fe25519_unpack.c
new file mode 100644
index 00000000..b3b0f4d5
--- /dev/null
+++ b/ext/ed25519-amd64-asm/fe25519_unpack.c
@@ -0,0 +1,11 @@
+#include "fe25519.h"
+
+void fe25519_unpack(fe25519 *r, const unsigned char x[32])
+{
+  /* assuming little-endian */
+  r->v[0] = *(unsigned long long *)x;
+  r->v[1] = *(((unsigned long long *)x)+1);
+  r->v[2] = *(((unsigned long long *)x)+2);
+  r->v[3] = *(((unsigned long long *)x)+3);
+  r->v[3] &= 0x7fffffffffffffffULL;
+}