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MikuAuahDark/.lua

Created December 17, 2018 12:07
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32-bit unsigned integer multiplication in Lua
Raw
.lua
function dwordMultiply(a, b)
a = a % 4294967296
b = b % 4294967296
local ah, al = math.floor(a / 65536), a % 65536
local bh, bl = math.floor(b / 65536), b % 65536
local high = ((ah * bl) + (al * bh)) % 65536
return ((high * 65536) + (al * bl)) % 4294967296
end
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