Initial upload v3.4.7

algo/luffa/luffa.c

@@ -0,0 +1,64 @@
+#include "miner.h"
+#include "algo-gate-api.h"
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "sph_luffa.h"
+
+void luffahash(void *output, const void *input)
+{
+	unsigned char _ALIGN(128) hash[64];
+	sph_luffa512_context ctx_luffa;
+
+	sph_luffa512_init(&ctx_luffa);
+	sph_luffa512 (&ctx_luffa, input, 80);
+	sph_luffa512_close(&ctx_luffa, (void*) hash);
+
+	memcpy(output, hash, 32);
+}
+
+int scanhash_luffa(int thr_id, struct work *work,
+	uint32_t max_nonce, uint64_t *hashes_done)
+{
+        uint32_t *pdata = work->data;
+        uint32_t *ptarget = work->target;
+
+	uint32_t _ALIGN(64) hash64[8];
+	uint32_t _ALIGN(64) endiandata[20];
+
+	const uint32_t Htarg = ptarget[7];
+	const uint32_t first_nonce = pdata[19];
+
+	uint32_t n = first_nonce;
+
+        for (int i=0; i < 19; i++) 
+                be32enc(&endiandata[i], pdata[i]);
+
+	do {
+		be32enc(&endiandata[19], n);
+		luffahash(hash64, endiandata);
+		if (hash64[7] < Htarg && fulltest(hash64, ptarget)) {
+			*hashes_done = n - first_nonce + 1;
+			pdata[19] = n;
+			return true;
+		}
+		n++;
+
+	} while (n < max_nonce && !work_restart[thr_id].restart);
+
+	*hashes_done = n - first_nonce + 1;
+	pdata[19] = n;
+
+	return 0;
+}
+
+bool register_luffa_algo( algo_gate_t* gate )
+{
+    gate->scanhash = (void*)&scanhash_luffa;
+    gate->hash     = (void*)&luffahash;
+    return true;
+};
+