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feat(big): add 64-bit-centric ops

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fallenoak 2023-01-23 22:10:24 -06:00 • committed by GitHub
parent 23fb94c19d
commit d3fd03d67e
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storm/big/Ops.cpp Normal file
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#include "storm/big/Ops.hpp"
uint32_t ExtractLowPart(uint64_t& value) {
auto low = static_cast<uint32_t>(value);
value >>= 32;
return low;
}
uint32_t ExtractLowPartSx(uint64_t& value) {
auto low = static_cast<uint32_t>(value);
value >>= 32;
if (value >= 0x80000000) {
reinterpret_cast<uint32_t*>(&value)[0] = value;
reinterpret_cast<uint32_t*>(&value)[1] = -1;
}
return low;
}
uint64_t MakeLarge(uint32_t low, uint32_t high) {
return low + (static_cast<uint64_t>(high) << 32);
}