55 lines
1.8 KiB
Lua
55 lines
1.8 KiB
Lua
local bit32 = {}
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function bit32.bnot (a)
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return ~a & 0xFFFFFFFF
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end
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function bit32.band (x, y, z, ...)
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if not z then
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return ((x or -1) & (y or -1)) & 0xFFFFFFFF
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else
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local arg = {...}
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local res = x & y & z
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for i = 1, #arg do res = res & arg[i] end
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return res & 0xFFFFFFFF
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end
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end
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function bit32.bor (x, y, z, ...)
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if not z then
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return ((x or 0) | (y or 0)) & 0xFFFFFFFF
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else
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local arg = {...}
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local res = x | y | z
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for i = 1, #arg do res = res | arg[i] end
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return res & 0xFFFFFFFF
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end
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end
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return bit32
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--[[
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*****************************************************************************
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* Copyright (C) 1994-2016 Lua.org, PUC-Rio.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*****************************************************************************
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]]
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