Calculating Hex In Cheat Engine Lua?

Question

I have a 4 byte hexadecimal value that I have a script to print out, But I want to now take that value then subtract the value C8 from it 37 times and save them as different variables each time, But the problem is I don't know how to do hexadecimal calculations in lua, If anyone can link me to any documentation on how to do this then that would be much appreciated.

score 1 · Accepted Answer · answered Jul 06 '20 at 04:57

You can make a hexadecimal literal in Lua by prefixing it with 0x, as stated in the reference manual. I found this by googling "lua hex"; such searches usually get good results.

"Hexadecimal numbers" aren't anything special, hexadecimal is just a way to represent numbers, same as decimal or binary. You can do 1000-0xC8 and you'll get the decimal number 800.

score 0 · Answer 2 · edited Aug 02 '21 at 14:17

Code to convert:

function convertHex()
    local decValue = readInteger(0x123456);
    hexValue = decValue
end

function hexSubtract()
    for i = 1,37 do
        local value = 0xC8
        hexValue = hexValue - 0xC8
        result = hexValue
        if i == 37 then
            print(result) --Prints dec value
            print(string.format('%X',result)); --Prints hex value
        end
    end
end

Replace 0x123456 with your address, use those functions like this convertHex(),hexSubtract()

Calculating Hex In Cheat Engine Lua?

2 Answers2