Add project files.

espReader/msh.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <stdint.h>
+
+#define CAT2(x, y) x##y
+#define CAT(x, y) CAT2(x, y)
+
+// hashes in universally into l (<= num bits in TYPE) bits using odd seed
+#define MSH(TYPE) \
+inline TYPE CAT(TYPE, _msh) (TYPE in, TYPE bits, TYPE seed) { \
+	return (seed * in) >> ((sizeof( TYPE ) * 8) - bits); \
+}
+
+// hashes for all of the standard sizes
+MSH(uint8_t)
+MSH(uint16_t)
+MSH(uint32_t)
+MSH(uint64_t)
+