(311 . 8)(311 . 8)
    if (GetSigOpCount() > nSize / 34 || nSize < 100)
        return error("AcceptToMemoryPool() : transaction with out-of-bounds SigOpCount");

    // Rather not work on nonstandard transactions (unless -testnet)
    if (!fTestNet && !IsStandard())
    // Rather not work on nonstandard transactions
    if (!IsStandard())
        return error("AcceptToMemoryPool() : nonstandard transaction type");

    // Do we already have it?
(600 . 11)(600 . 6)
//
unsigned int ComputeMinWork(unsigned int nBase, int64 nTime)
{
    // Testnet has min-difficulty blocks
    // after nTargetSpacing*2 time between blocks:
    if (fTestNet && nTime > nTargetSpacing*2)
        return bnProofOfWorkLimit.GetCompact();

    CBigNum bnResult;
    bnResult.SetCompact(nBase);
    while (nTime > 0 && bnResult < bnProofOfWorkLimit)
(630 . 23)(625 . 6)
    // Only change once per interval
    if ((pindexLast->nHeight+1) % nInterval != 0)
    {
        // Special rules for testnet after 15 Feb 2012:
        if (fTestNet && pblock->nTime > 1329264000)
        {
            // If the new block's timestamp is more than 2* 10 minutes
            // then allow mining of a min-difficulty block.
            if (pblock->nTime - pindexLast->nTime > nTargetSpacing*2)
                return nProofOfWorkLimit;
            else
            {
                // Return the last non-special-min-difficulty-rules-block
                const CBlockIndex* pindex = pindexLast;
                while (pindex->pprev && pindex->nHeight % nInterval != 0 && pindex->nBits == nProofOfWorkLimit)
                    pindex = pindex->pprev;
                return pindex->nBits;
            }
        }

        return pindexLast->nBits;
    }

(992 . 8)(970 . 7)
    // This logic is not necessary for memory pool transactions, as AcceptToMemoryPool
    // already refuses previously-known transaction id's entirely.
    // This rule applies to all blocks whose timestamp is after March 15, 2012, 0:00 UTC.
    // On testnet it is enabled as of februari 20, 2012, 0:00 UTC.
    if (pindex->nTime > 1331769600 || (fTestNet && pindex->nTime > 1329696000))
    if (pindex->nTime > 1331769600)
        BOOST_FOREACH(CTransaction& tx, vtx)
        {
            CTxIndex txindexOld;
(1461 . 16)(1438 . 6)

bool LoadBlockIndex(bool fAllowNew)
{
    if (fTestNet)
    {
        hashGenesisBlock = uint256("0x00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008");
        bnProofOfWorkLimit = CBigNum(~uint256(0) >> 28);
        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0xbf;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0xda;
    }

    //
    // Load block index
    //
(1511 . 13)(1478 . 6)
        block.nBits    = 0x1d00ffff;
        block.nNonce   = 2083236893;

        if (fTestNet)
        {
            block.nTime    = 1296688602;
            block.nBits    = 0x1d07fff8;
            block.nNonce   = 384568319;
        }

        //// debug print
        printf("%s\n", block.GetHash().ToString().c_str());
        printf("%s\n", hashGenesisBlock.ToString().c_str());