Add `hash.djbx33a`

1 files changed, 18 insertions, 0 deletions

diff --git a/core/hash/djbx33a.odin b/core/hash/djbx33a.odin
new file mode 100644
index 000000000..db286b660
--- /dev/null
+++ b/core/hash/djbx33a.odin
@@ -0,0 +1,18 @@
+package hash
+
+djbx33a :: proc(data: []byte) -> (result: [16]byte) #no_bounds_check {
+	state := [4]u32{5381, 5381, 5381, 5381}
+	
+	s: u32 = 0
+	for p in data {
+		state[s] = (state[s] << 5) + state[s] + u32(p)
+		s = (s + 1) & 3
+	}
+	
+	
+	(^u32le)(&result[0])^  = u32le(state[0])
+	(^u32le)(&result[4])^  = u32le(state[1])
+	(^u32le)(&result[8])^  = u32le(state[2])
+	(^u32le)(&result[12])^ = u32le(state[3])
+	return
+}
\ No newline at end of file