v3.9.2

algo/sha/sha256q.c

@@ -0,0 +1,113 @@
+#include "sha256t-gate.h"
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#include <openssl/sha.h>
+
+static __thread SHA256_CTX sha256q_ctx __attribute__ ((aligned (64)));
+
+void sha256q_midstate( const void* input )
+{
+    SHA256_Init( &sha256q_ctx );
+    SHA256_Update( &sha256q_ctx, input, 64 );
+}
+
+void sha256q_hash( void* output, const void* input )
+{
+   uint32_t _ALIGN(64) hash[16];
+   const int midlen = 64;            // bytes
+   const int tail   = 80 - midlen;   // 16
+
+   SHA256_CTX ctx __attribute__ ((aligned (64)));
+   memcpy( &ctx, &sha256q_ctx, sizeof sha256q_ctx );
+
+   SHA256_Update( &ctx, input + midlen, tail );
+   SHA256_Final( (unsigned char*)hash, &ctx );
+
+   SHA256_Init( &ctx );
+   SHA256_Update( &ctx, hash, 32 );
+   SHA256_Final( (unsigned char*)hash, &ctx );
+
+   SHA256_Init( &ctx );
+   SHA256_Update( &ctx, hash, 32 );
+   SHA256_Final( (unsigned char*)hash, &ctx );
+
+   SHA256_Init( &ctx );
+   SHA256_Update( &ctx, hash, 32 );
+   SHA256_Final( (unsigned char*)hash, &ctx );
+
+   memcpy( output, hash, 32 );
+}
+
+int scanhash_sha256q( int thr_id, struct work *work, uint32_t max_nonce,
+                      uint64_t *hashes_done, struct thr_info *mythr )
+{
+   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];
+#ifdef _MSC_VER
+   uint32_t __declspec(align(32)) hash64[8];
+#else
+   uint32_t hash64[8] __attribute__((aligned(32)));
+#endif
+   uint32_t endiandata[32];
+   /* int */ thr_id = mythr->id;  // thr_id arg is deprecated
+
+   uint64_t htmax[] = {
+		0,
+		0xF,
+		0xFF,
+		0xFFF,
+		0xFFFF,
+		0x10000000
+	};
+   uint32_t masks[] = {
+		0xFFFFFFFF,
+		0xFFFFFFF0,
+		0xFFFFFF00,
+		0xFFFFF000,
+		0xFFFF0000,
+		0
+	};
+
+   // we need bigendian data...
+   casti_m128i( endiandata, 0 ) = mm128_bswap_32( casti_m128i( pdata, 0 ) );
+   casti_m128i( endiandata, 1 ) = mm128_bswap_32( casti_m128i( pdata, 1 ) );
+   casti_m128i( endiandata, 2 ) = mm128_bswap_32( casti_m128i( pdata, 2 ) );
+   casti_m128i( endiandata, 3 ) = mm128_bswap_32( casti_m128i( pdata, 3 ) );
+   casti_m128i( endiandata, 4 ) = mm128_bswap_32( casti_m128i( pdata, 4 ) );
+
+   sha256q_midstate( endiandata );
+
+   for ( int m = 0; m < 6; m++ )
+   {
+      if ( Htarg <= htmax[m] )
+      {
+         uint32_t mask = masks[m];
+         do {
+            pdata[19] = ++n;
+            be32enc(&endiandata[19], n);
+            sha256q_hash( hash64, endiandata );
+            if ( ( !(hash64[7] & mask) ) && fulltest( hash64, ptarget ) )
+            {
+               work_set_target_ratio( work, hash64 );
+               if ( submit_work( mythr, work ) )
+                  applog( LOG_NOTICE, "Share %d submitted by thread %d.",
+                             accepted_share_count + rejected_share_count + 1,
+                             thr_id );
+               else
+                  applog( LOG_WARNING, "Failed to submit share." );
+               *hashes_done = n - first_nonce + 1;
+            }
+         } while ( n < max_nonce && !work_restart[thr_id].restart );
+         break;
+      }
+   }
+
+   *hashes_done = n - first_nonce + 1;
+   pdata[19] = n;
+   return 0;
+}