mirror of
https://github.com/notwa/lips
synced 2024-04-28 16:23:23 -07:00
24 lines
536 B
Lua
24 lines
536 B
Lua
local floor = math.floor
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local open = io.open
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local function readfile(fn, binary)
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local mode = binary and 'rb' or 'r'
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local f = open(fn, mode)
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if not f then
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local kind = binary and 'binary' or 'assembly'
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error('could not open '..kind..' file for reading: '..tostring(fn), 2)
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end
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local data = f:read('*a')
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f:close()
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return data
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end
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local function bitrange(x, lower, upper)
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return floor(x/2^lower) % 2^(upper - lower + 1)
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end
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return {
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readfile = readfile,
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bitrange = bitrange,
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}
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