Initial upload v3.4.7

algo/blake/pentablake.c

@@ -0,0 +1,121 @@
+#include "miner.h"
+#include "algo-gate-api.h"
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "sph_blake.h"
+
+//#define DEBUG_ALGO
+
+extern void pentablakehash(void *output, const void *input)
+{
+	unsigned char _ALIGN(32) hash[128];
+	// same as uint32_t hashA[16], hashB[16];
+	#define hashB hash+64
+
+	sph_blake512_context     ctx_blake;
+
+	sph_blake512_init(&ctx_blake);
+	sph_blake512(&ctx_blake, input, 80);
+	sph_blake512_close(&ctx_blake, hash);
+
+        sph_blake512_init(&ctx_blake);
+	sph_blake512(&ctx_blake, hash, 64);
+	sph_blake512_close(&ctx_blake, hashB);
+
+        sph_blake512_init(&ctx_blake);
+	sph_blake512(&ctx_blake, hashB, 64);
+	sph_blake512_close(&ctx_blake, hash);
+
+        sph_blake512_init(&ctx_blake);
+	sph_blake512(&ctx_blake, hash, 64);
+	sph_blake512_close(&ctx_blake, hashB);
+
+        sph_blake512_init(&ctx_blake);
+	sph_blake512(&ctx_blake, hashB, 64);
+	sph_blake512_close(&ctx_blake, hash);
+
+	memcpy(output, hash, 32);
+
+}
+
+int scanhash_pentablake(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 n = pdata[19] - 1;
+	const uint32_t first_nonce = pdata[19];
+	const uint32_t Htarg = ptarget[7];
+
+	uint32_t _ALIGN(32) hash64[8];
+	uint32_t _ALIGN(32) endiandata[32];
+
+	uint64_t htmax[] = {
+		0,
+		0xF,
+		0xFF,
+		0xFFF,
+		0xFFFF,
+		0x10000000
+	};
+	uint32_t masks[] = {
+		0xFFFFFFFF,
+		0xFFFFFFF0,
+		0xFFFFFF00,
+		0xFFFFF000,
+		0xFFFF0000,
+		0
+	};
+
+	// we need bigendian data...
+        swab32_array( endiandata, pdata, 20 );
+
+#ifdef DEBUG_ALGO
+	if (Htarg != 0)
+		printf("[%d] Htarg=%X\n", thr_id, Htarg);
+#endif
+	for (int m=0; m < 6; m++) {
+		if (Htarg <= htmax[m]) {
+			uint32_t mask = masks[m];
+			do {
+				pdata[19] = ++n;
+				be32enc(&endiandata[19], n);
+				pentablakehash(hash64, endiandata);
+#ifndef DEBUG_ALGO
+				if ((!(hash64[7] & mask)) && fulltest(hash64, ptarget)) {
+					*hashes_done = n - first_nonce + 1;
+					return true;
+				}
+#else
+				if (!(n % 0x1000) && !thr_id) printf(".");
+				if (!(hash64[7] & mask)) {
+					printf("[%d]",thr_id);
+					if (fulltest(hash64, ptarget)) {
+						*hashes_done = n - first_nonce + 1;
+						return true;
+					}
+				}
+#endif
+			} while (n < max_nonce && !work_restart[thr_id].restart);
+			// see blake.c if else to understand the loop on htmax => mask
+			break;
+		}
+	}
+
+	*hashes_done = n - first_nonce + 1;
+	pdata[19] = n;
+	return 0;
+} 
+
+bool register_pentablake_algo( algo_gate_t* gate )
+{
+    gate->scanhash  = (void*)&scanhash_pentablake;
+    gate->hash      = (void*)&pentablakehash;
+    gate->get_max64 = (void*)&get_max64_0x3ffff;
+    return true;
+};
+