Sha256 Gpu Miner Direct

hash[0] += a; hash[1] += b; hash[2] += c; hash[3] += d; hash[4] += e; hash[5] += f; hash[6] += g; hash[7] += h;

# Mine with small nonce range for demo nonce = miner.mine(dummy_header, easy_target, start_nonce=0, nonce_range=1000000, work_size=65536) sha256 gpu miner

void sha256_transform(const uint *data, uint *hash) uint W[64]; uint i, t1, t2; uint a, b, c, d, e, f, g, h; hash[0] += a; hash[1] += b; hash[2] +=

for (i = 0; i < 64; i++) t1 = h + EP1(e) + CH(e,f,g) + K[i] + W[i]; t2 = EP0(a) + MAJ(a,b,c); h = g; g = f; f = e; e = d + t1; d = c; c = b; b = a; a = t1 + t2; hash[0] += a

uint gid = get_global_id(0); uint nonce = start_nonce + gid;

# Create a dummy block header (80 bytes hex) with version, prev hash, merkle root, time, bits # Bits = 0x1d00ffff -> target ~ 0x00000000ffff000000... # For quick demo, we use a very high target (easy)

def header_to_words(header): """Convert 80-byte header into 16 uint32 words (first 448 bits = 14 words) for kernel""" words = list(unpack("<16I", header.ljust(64, b'\x00'))) return words[:14] # first 14 words (nonce is word 14 in kernel) Main miner ------------------------------ class SHA256GPUMiner: def init (self, device_id=0): platforms = cl.get_platforms() if not platforms: raise RuntimeError("No OpenCL platforms found")