157 lines
3.7 KiB
Lua
157 lines
3.7 KiB
Lua
---@meta bit32
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---@version 5.2
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---
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---
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32"])
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---
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---@class bit32lib
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bit32 = {}
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---
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---返回 `x` 向右位移 `disp` 位的结果。`disp` 为负时向左位移。这是算数位移操作，左侧的空位使用 `x` 的高位填充，右侧空位使用 `0` 填充。
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---
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.arshift"])
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---
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---@param x integer
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---@param disp integer
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---@return integer
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---@nodiscard
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function bit32.arshift(x, disp) end
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---
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---返回参数按位与的结果。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.band"])
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---
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---@return integer
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---@nodiscard
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function bit32.band(...) end
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---
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---返回 `x` 按位取反的结果。
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---
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---```lua
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---assert(bit32.bnot(x) ==
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---(-1 - x) % 2^32)
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---```
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---
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.bnot"])
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---
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---@param x integer
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---@return integer
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---@nodiscard
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function bit32.bnot(x) end
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---
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---返回参数按位或的结果。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.bor"])
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---
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---@return integer
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---@nodiscard
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function bit32.bor(...) end
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---
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---参数按位与的结果不为0时，返回 `true` 。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.btest"])
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---
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---@return boolean
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---@nodiscard
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function bit32.btest(...) end
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---
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---返回参数按位异或的结果。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.bxor"])
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---
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---@return integer
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---@nodiscard
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function bit32.bxor(...) end
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---
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---返回 `n` 中第 `field` 到第 `field + width - 1` 位组成的结果。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.extract"])
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---
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---@param n integer
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---@param field integer
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---@param width? integer
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---@return integer
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---@nodiscard
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function bit32.extract(n, field, width) end
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---
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---返回 `v` 的第 `field` 到第 `field + width - 1` 位替换 `n` 的对应位后的结果。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.replace"])
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---
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---@param n integer
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---@param v integer
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---@param field integer
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---@param width? integer
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---@nodiscard
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function bit32.replace(n, v, field, width) end
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---
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---返回 `x` 向左旋转 `disp` 位的结果。`disp` 为负时向右旋转。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.lrotate"])
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---
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---@param x integer
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---@param distp integer
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---@return integer
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---@nodiscard
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function bit32.lrotate(x, distp) end
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---
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---返回 `x` 向左位移 `disp` 位的结果。`disp` 为负时向右位移。空位总是使用 `0` 填充。
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---
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---```lua
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---assert(bit32.lshift(b, disp) ==
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---(b * 2^disp) % 2^32)
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---```
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---
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.lshift"])
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---
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---@param x integer
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---@param distp integer
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---@return integer
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---@nodiscard
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function bit32.lshift(x, distp) end
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---
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---返回 `x` 向右旋转 `disp` 位的结果。`disp` 为负时向左旋转。
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.rrotate"])
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---
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---@param x integer
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---@param distp integer
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---@return integer
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---@nodiscard
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function bit32.rrotate(x, distp) end
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---
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---返回 `x` 向右位移 `disp` 位的结果。`disp` 为负时向左位移。空位总是使用 `0` 填充。
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---
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---```lua
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---assert(bit32.lshift(b, disp) ==
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---(b * 2^disp) % 2^32)
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---```
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---
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---
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---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-bit32.rshift"])
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---
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---@param x integer
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---@param distp integer
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---@return integer
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---@nodiscard
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function bit32.rshift(x, distp) end
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return bit32
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