Negativ values again :)

[jojogib]

Hey everyone
local bi = BigInteger(value)

local MS = bi:getBitRangeAsInt(0,4)
local LS = bi:getBitRangeAsInt(4, 4)
local MS1 = bi:getBitRangeAsInt(8,4)
local LS1 = bi:getBitRangeAsInt(12,4)

this works for me with positive values but i need to go negative
starting by:
0 = 00 00 00 00
-1 = 0f 0f 0f 0f
-2 = 0e 0f 0f 0f
-3 = 0d 0f 0f 0f
...
-9999 = 01 0f 08 0d
anyone know how to calculate`?
Thank you

[damiensellier]

The range is always -9999 to +9999 ?

[jojogib]

yes

[dnaldoog]

Here is how I would do it!

ushort= 65535 --  mask signed short integer
myMethod = function(--[[ CtrlrModulator --]] mod --[[ number --]], value --[[ number --]], source)
    local bi = BigInteger(luaIntMask(value))
    local MS = bi:getBitRangeAsInt(0, 4)
    local LS = bi:getBitRangeAsInt(4, 4)
    local MS1 = bi:getBitRangeAsInt(8, 4)
    local LS1 = bi:getBitRangeAsInt(12, 4)
    console(string.format("%.2x %.2x %.2x %.2x", MS, LS, MS1, LS1))
end
function luaIntMask(val, mask)
    local mask = mask or ushort
    return bit.band(val, mask)
end

signed number 4 bit nibbleized_2_0.zip

[jojogib]

awesome it worked. I really need to study the lua basics. I have 0 programming experience so I dont know where to start.