squall/storm/big/Ops.cpp
2023-01-23 22:10:24 -06:00

24 lines
537 B
C++

#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);
}