Remove PoW CPU miner

[novacoin.git] / src / scrypt_mine.cpp

diff --git a/src/scrypt_mine.cpp b/src/scrypt_mine.cpp
index afca59d..c424e49 100644 (file)
--- a/src/scrypt_mine.cpp
+++ b/src/scrypt_mine.cpp
@@ -37,29 +37,9 @@
 #include "util.h"
 #include "net.h"
 
-extern bool fShutdown;
-extern bool fGenerateBitcoins;
-
-extern CBlockIndex* pindexBest;
-extern uint32_t nTransactionsUpdated;
-
-
-#if defined(__x86_64__)
-
-#define SCRYPT_3WAY
-#define SCRYPT_BUFFER_SIZE (3 * 131072 + 63)
-
-extern "C" int scrypt_best_throughput();
-extern "C" void scrypt_core(uint32_t *X, uint32_t *V);
-extern "C" void scrypt_core_2way(uint32_t *X, uint32_t *Y, uint32_t *V);
-extern "C" void scrypt_core_3way(uint32_t *X, uint32_t *Y, uint32_t *Z, uint32_t *V);
-
-#elif defined(__i386__)
-
+#if defined (__x86_64__) || defined (__i386__)
 #define SCRYPT_BUFFER_SIZE (131072 + 63)
-
-extern  "C" void scrypt_core(uint32_t *X, uint32_t *V);
-
+extern "C" void scrypt_core(uint32_t *X, uint32_t *V);
 #endif
 
 void *scrypt_buffer_alloc() {
@@ -93,116 +73,3 @@ void scrypt_hash(const void* input, size_t inputlen, uint32_t *res, void *scratc
 {
     return scrypt(input, inputlen, res, scratchpad);
 }
-
-#ifdef SCRYPT_3WAY
-static void scrypt_2way(const void *input1, const void *input2, size_t input1len, size_t input2len, uint32_t *res1, uint32_t *res2, void *scratchpad)
-{
-    uint32_t *V;
-    uint32_t X[32], Y[32];
-    V = (uint32_t *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63));
-
-    PBKDF2_SHA256((const uint8_t*)input1, input1len, (const uint8_t*)input1, input1len, 1, (uint8_t *)X, 128);
-    PBKDF2_SHA256((const uint8_t*)input2, input2len, (const uint8_t*)input2, input2len, 1, (uint8_t *)Y, 128);
-
-    scrypt_core_2way(X, Y, V);
-
-    PBKDF2_SHA256((const uint8_t*)input1, input1len, (uint8_t *)X, 128, 1, (uint8_t*)res1, 32);
-    PBKDF2_SHA256((const uint8_t*)input2, input2len, (uint8_t *)Y, 128, 1, (uint8_t*)res2, 32);
-}
-
-static void scrypt_3way(const void *input1, const void *input2, const void *input3,
-   size_t input1len, size_t input2len, size_t input3len, uint32_t *res1, uint32_t *res2, uint32_t *res3,
-   void *scratchpad)
-{
-    uint32_t *V;
-    uint32_t X[32], Y[32], Z[32];
-    V = (uint32_t *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63));
-
-    PBKDF2_SHA256((const uint8_t*)input1, input1len, (const uint8_t*)input1, input1len, 1, (uint8_t *)X, 128);
-    PBKDF2_SHA256((const uint8_t*)input2, input2len, (const uint8_t*)input2, input2len, 1, (uint8_t *)Y, 128);
-    PBKDF2_SHA256((const uint8_t*)input3, input3len, (const uint8_t*)input3, input3len, 1, (uint8_t *)Z, 128);
-
-    scrypt_core_3way(X, Y, Z, V);
-
-    PBKDF2_SHA256((const uint8_t*)input1, input1len, (uint8_t *)X, 128, 1, (uint8_t*)res1, 32);
-    PBKDF2_SHA256((const uint8_t*)input2, input2len, (uint8_t *)Y, 128, 1, (uint8_t*)res2, 32);
-    PBKDF2_SHA256((const uint8_t*)input3, input3len, (uint8_t *)Z, 128, 1, (uint8_t*)res3, 32);
-}
-#endif
-
-unsigned int scanhash_scrypt(block_header *pdata, void *scratchbuf,
-    uint32_t max_nonce, uint32_t &hash_count,
-    void *result, block_header *res_header)
-{
-    hash_count = 0;
-    block_header data = *pdata;
-    uint32_t hash[8];
-    unsigned char *hashc = (unsigned char *) &hash;
-
-#ifdef SCRYPT_3WAY
-    block_header data2 = *pdata;
-    uint32_t hash2[8];
-    unsigned char *hashc2 = (unsigned char *) &hash2;
-
-    block_header data3 = *pdata;
-    uint32_t hash3[8];
-    unsigned char *hashc3 = (unsigned char *) &hash3;
-
-    int throughput = scrypt_best_throughput();
-#endif
-
-    uint32_t n = 0;
-
-    while (true) {
-
-        data.nonce = n++;
-
-#ifdef SCRYPT_3WAY
-        if (throughput >= 2 && n < max_nonce) {
-            data2.nonce = n++;
-            if(throughput >= 3)
-            {
-                data3.nonce = n++;
-                scrypt_3way(&data, &data2, &data3, 80, 80, 80, hash, hash2, hash3, scratchbuf);
-                hash_count += 3;
-
-                if (hashc3[31] == 0 && hashc3[30] == 0) {
-                    memcpy(result, hash3, 32);
-                    *res_header = data3;
-
-                    return data3.nonce;
-                }
-            }
-            else
-            {
-                scrypt_2way(&data, &data2, 80, 80, hash, hash2, scratchbuf);
-                hash_count += 2;
-            }
-
-            if (hashc2[31] == 0 && hashc2[30] == 0) {
-                memcpy(result, hash2, 32);
-
-                return data2.nonce;
-            }
-        } else {
-            scrypt(&data, 80, hash, scratchbuf);
-            hash_count += 1;
-        }
-#else
-        scrypt(&data, 80, hash, scratchbuf);
-        hash_count += 1;
-#endif
-        if (hashc[31] == 0 && hashc[30] == 0) {
-            memcpy(result, hash, 32);
-
-            return data.nonce;
-        }
-
-        if (n >= max_nonce) {
-            hash_count = 0xffff + 1;
-            break;
-        }
-    }
-
-    return (unsigned int) -1;
-}