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Merge pull request #10 from iamsmooth/master

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reward calculation fix for 32-bit (from Monero)
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aeonix
2015-07-25 18:31:51 -07:00
parent 640307d21e 5ece7cee9c
commit c3bfb2e537
1 changed files with 5 additions and 1 deletions
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src/cryptonote_core/cryptonote_basic_impl.cpp
+5 -1
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@@ -81,7 +81,11 @@ namespace cryptonote {
assert(current_block_size < std::numeric_limits<uint32_t>::max());
uint64_t product_hi;
uint64_t product_lo = mul128(base_reward, current_block_size * (2 * median_size - current_block_size), &product_hi);
// BUGFIX: 32-bit saturation bug (e.g. ARM7), the result was being
// treated as 32-bit by default.
uint64_t multiplicand = 2 * median_size - current_block_size;
multiplicand *= current_block_size;
uint64_t product_lo = mul128(base_reward, multiplicand, &product_hi);
uint64_t reward_hi;
uint64_t reward_lo;