# hex binary to binary cut

I have a hex number like D4 which is equal 11010100 in binary. I need to get the value of the first bit in a bool variable and the 7 other into a number (so for the exemple of D4; The bool would be true and the number variable would be 84)

For this you should use Python, it comes with a bunch of functions such as `bin`

, `int`

and `hex`

, which are extremely helpful for such things.

What I was able to pull out, was something along the lines of this (I made it a bit more human readable :P):

```
num = "D4"
int_num = int(num,16)
bin_num = bin(int_num)[2:]
```

`int_num`

is the hexadecimal number converted back into an integer, and `bin_num`

is the number convered into binary, but without the `0b`

at the beginning.

And here comes one of pythons sneaky little advantages in.

With `bin_num[0]`

you can get a letter from the string like it's an array (string, the array in disguise ;P).

So

```
first_bit = bool(bin_num[0])
binary_data = bin_num[1:]
final_num = int(binary_data,2)
```

will result in the variable `first_bit`

, which is the first bit of the binary number as a boolean, and `final_num`

, which the number as integer but without the first bit.

Hope I have been helpful!

here's how to do it in javascript

```
// javascript
convertTo = function(n, c){
return (n.toString(c))
}
global.convertTo = convertTo;
```

main file

```
init = function()
num = 0xD4
bin_str = convertTo(num,2)
print("bin_str: " + bin_str )
end
```